dri-devel September 2011

dri-devel@lists.freedesktop.org

68 participants
507 discussions

[Bug 39897] Graphical glitches in some games on Evergreen
by bugzilla-daemon＠freedesktop.org 25 Sep '11

25 Sep '11

https://bugs.freedesktop.org/show_bug.cgi?id=39897 --- Comment #16 from chrisdhaag(a)googlemail.com 2011-09-25 10:36:44 PDT --- Created an attachment (id=51591) --> (https://bugs.freedesktop.org/attachment.cgi?id=51591) xonotic 1600x900, glsl enabled I have seen the same behaviour in some 3d programs and I also have to add some information. mobile HD 6550 = HD 5650 xorg 1.10 and later 1.11, did not make a difference mesa git libdrm git xf86-video-ati git - The corruption consistently only happens in certain window width/heights. 1600x900 seem to always be bad, while on 1152x768 it works well. - Deactivating compositing has no effect. - It happens in 32 bit wine programs as well as in 64 bit programs on a 64 bit Archlinux (I don't get what that ubuntu discussion is about) I have seen this in: - xonotic 0.5 with GLSL enabled. Without GLSL it renders (mostly) fine on 1600x900. So I suspect the problem there. - Portal 2 in wine. But strangely Half Life 2 Episode 1 worked well. - Trackmania Nations in wine - An Ubuntu 11.10 beta VM in Virtualbox with the guest additions enabled - mplayer with g3dvl vdpau. The rendering is not working right anyway, but when making the window too big I see the same stripes on the broken rendering Reducing the resolution in xonotic and trackmania nations helps and resizing windows in the VM also helps. So I am not entirely sure whether I have this bug here. I'll also attach a screenshot of the ubuntu 11.10 vm as it looks strange to me that a window with a "bad" size in a composited desktop inside virtualbox would trigger that bug. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.

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[PATCH] drm/i915: use DDC_ADDR instead of hard-coding it
by Matt Turner 23 Sep '11

23 Sep '11

Signed-off-by: Matt Turner <mattst88(a)gmail.com> --- drivers/gpu/drm/i915/intel_modes.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_modes.c b/drivers/gpu/drm/i915/intel_modes.c index 3b26a3b..ab534be 100644 --- a/drivers/gpu/drm/i915/intel_modes.c +++ b/drivers/gpu/drm/i915/intel_modes.c @@ -27,6 +27,7 @@ #include <linux/i2c.h> #include <linux/fb.h> #include "drmP.h" +#include "drm_edid.h" #include "intel_drv.h" #include "i915_drv.h" @@ -41,13 +42,13 @@ bool intel_ddc_probe(struct intel_encoder *intel_encoder, int ddc_bus) u8 buf[2]; struct i2c_msg msgs[] = { { - .addr = 0x50, + .addr = DDC_ADDR, .flags = 0, .len = 1, .buf = out_buf, }, { - .addr = 0x50, + .addr = DDC_ADDR, .flags = I2C_M_RD, .len = 1, .buf = buf, -- 1.7.3.4

2 1

[PATCH] drm: remove unneeded redefinition of DDC_ADDR
by Matt Turner 23 Sep '11

23 Sep '11

It's already defined in drm_edid.h. Signed-off-by: Matt Turner <mattst88(a)gmail.com> --- drivers/gpu/drm/drm_edid.c | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 7425e5c..9fa8316 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -225,7 +225,6 @@ bool drm_edid_is_valid(struct edid *edid) } EXPORT_SYMBOL(drm_edid_is_valid); -#define DDC_ADDR 0x50 #define DDC_SEGMENT_ADDR 0x30 /** * Get EDID information via I2C. -- 1.7.3.4

1 1

[git pull] drm fixes
by Dave Airlie 23 Sep '11

23 Sep '11

Hi, One radeon fix, and one serious radeon revert due to regression. Dave. The following changes since commit d942e43b58dc27b36305bcd374a74f7cc15183a3: Merge branch 'for-linus' of git://git.selinuxproject.org/~jmorris/linux-security (2011-09-22 19:57:27 -0700) are available in the git repository at: ssh://people.freedesktop.org/~/linux drm-fixes Alex Deucher (1): drm/radeon/kms: fix DDIA enable on some rs690 systems Dave Airlie (1): Revert "drm/radeon/kms: fix typo in r100_blit_copy" drivers/gpu/drm/radeon/r100.c | 4 ++-- drivers/gpu/drm/radeon/radeon_encoders.c | 9 ++++++++- 2 files changed, 10 insertions(+), 3 deletions(-)

1 0

[PATCH] xf86drm.h : wrap C code for C++ compilation/linking
by Tapani Pälli 23 Sep '11

23 Sep '11

To enable usage of xf86drm.h from C++ programs/frameworks. Signed-off-by: Tapani Pälli <tapani.palli(a)intel.com> --- xf86drm.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/xf86drm.h b/xf86drm.h index 20f4c78..7cdf631 100644 --- a/xf86drm.h +++ b/xf86drm.h @@ -39,6 +39,10 @@ #include <stdint.h> #include <drm.h> +#ifdef __cplusplus +extern "C" { +#endif + #ifndef DRM_MAX_MINOR #define DRM_MAX_MINOR 16 #endif @@ -723,4 +727,8 @@ extern int drmHandleEvent(int fd, drmEventContextPtr evctx); extern char *drmGetDeviceNameFromFd(int fd); +#ifdef __cplusplus +} +#endif + #endif -- 1.7.6.2

2 1

[patch] drm: potential info leak in compat_drm_getclient()
by Dan Carpenter 23 Sep '11

23 Sep '11

Smatch has a new check for Rosenberg type information leaks where structs are copied to the user with uninitialized stack data in them. The c32.idx member wasn't initialized. Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c index 4a058c7..050bd49 100644 --- a/drivers/gpu/drm/drm_ioc32.c +++ b/drivers/gpu/drm/drm_ioc32.c @@ -314,6 +314,7 @@ static int compat_drm_getclient(struct file *file, unsigned int cmd, if (err) return err; + c32.idx = idx; if (__get_user(c32.auth, &client->auth) || __get_user(c32.pid, &client->pid) || __get_user(c32.uid, &client->uid)

1 0

[Bug 39193] New: glCheckFramebufferStatusEXT segfaults in Gallium when checking status on a framebuffer bound to a texture that's bound to a pixmap
by bugzilla-daemon＠freedesktop.org 22 Sep '11

22 Sep '11

https://bugs.freedesktop.org/show_bug.cgi?id=39193 Summary: glCheckFramebufferStatusEXT segfaults in Gallium when checking status on a framebuffer bound to a texture that's bound to a pixmap Product: Mesa Version: unspecified Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: normal Priority: medium Component: Drivers/Gallium/r600 AssignedTo: dri-devel(a)lists.freedesktop.org ReportedBy: simon.farnsworth(a)onelan.co.uk Created an attachment (id=49039) --> (https://bugs.freedesktop.org/attachment.cgi?id=49039) Test program demonstrating the crash In our OpenGL compositor, we double-buffer some windows by using GL_EXT_framebuffer_object and glTexCopyImage to copy the window backing pixmap to a new texture. This crashes on r600g (but not Intel DRI) drivers, in Gallium's implementation of glCheckFramebufferStatusEXT due to a NULL deference. I've attached a program that demonstrates the crash, using a scratch pixmap created by the program instead of a window backing store pixmap created by XComposite. It's built with: gcc -O2 -ggdb -Wall -Werror -o framebuffertexturetest framebuffertexturetest.c -lX11 -lGL -lGLEW -lGLU When I run this against git versions of Mesa, I get the following backtrace (via gdb): (gdb) t a a bt full Thread 1 (Thread 0xb7a1e6d0 (LWP 971)): #0 0xb771a9b4 in st_validate_attachment (ctx=0x8162248, screen=0x8063968, att=0x81aabd8, bindings=2) at state_tracker/st_cb_fbo.c:472 stObj = 0x81aa4b8 format = <optimized out> texFormat = <optimized out> #1 0xb771ab6a in st_validate_framebuffer (ctx=0x8162248, fb=0x81aa9f8) at state_tracker/st_cb_fbo.c:570 att = 0x81aabd8 format = <optimized out> screen = 0x8063968 depth = 0x81aab68 stencil = 0x81aab84 i = <optimized out> first_format = <optimized out> mixed_formats = 1 '\001' #2 0xb76be381 in _mesa_test_framebuffer_completeness (ctx=0x8162248, fb=0x81aa9f8) at main/fbobject.c:866 numImages = <optimized out> intFormat = <optimized out> minWidth = <optimized out> minHeight = <optimized out> maxWidth = <optimized out> maxHeight = <optimized out> numSamples = <optimized out> i = <optimized out> j = <optimized out> __PRETTY_FUNCTION__ = "_mesa_test_framebuffer_completeness" #3 0xb76bff48 in _mesa_CheckFramebufferStatusEXT (target=36160) at main/fbobject.c:1850 buffer = 0x81aa9f8 ctx = 0x8162248 #4 0xb7e6d6e8 in glCheckFramebufferStatusEXT (target=36160) at ../../../src/mapi/glapi/glapitemp.h:5728 No locals. #5 0x08049a2f in render_to_texture (target_texture=1) at framebuffertexturetest.c:151 framebuffer = 1 value = <optimized out> pixmapAttribs = {8406, 8412, 8405, 8410, 0} glx_pixmap = 2097159 gc = <optimized out> attrib = {x = 0, y = 0, width = 1920, height = 1200, border_width = 0, depth = 24, visual = 0x8056ab8, root = 343, class = 1, bit_gravity = 0, win_gravity = 1, backing_store = 0, backing_planes = 4294967295, backing_pixel = 0, save_under = 0, colormap = 2097153, map_installed = 0, map_state = 2, all_event_masks = 0, your_event_mask = 0, do_not_propagate_mask = 0, override_redirect = 0, screen = 0x80566c8} visualid = 273 fbconfigs = 0x81a74f0 nfbconfigs = 144 status = <optimized out> bound_texture = 4 i = <optimized out> pixmap = 2097157 visinfo = <optimized out> #6 main (argc=1, argv=0xbffff6e4) at framebuffertexturetest.c:344 last_frame_time = <optimized out> start_time = <optimized out> ust = 577789755707940852 msc = <optimized out> draw_texture = 1 My X stack is using the following components from git; everything else is from Fedora 15, apart from the kernel, which is airlied's drm-fixes: dri2proto: commit 7fd18b15646a62bd82a4eb0eca60a34c1731813d drm: commit 8d055890d90c3d92647e3d8b98d32630ef87c2c8 glproto: commit 6d7e398150dde1c15b7f62f485cb33bad8f4d5c6 libpciaccess: commit f9159b97834ba4b4e42a07953a33866e7ac90dbd mesa: commit 5fe5d236c26b3b2428bc7395304e40cf21d3d3e1 pixman: commit e814b50877bf313619fbf777dcab98d39874f8a4 randrproto: commit b5c977ad70b845c278ef52c004d9e5fc3ec97cbf xf86-input-evdev: commit 5069e053354ad6adfcbb08c962bff93b607dec3d xf86-video-ati: commit e8d0d437957b15252dfad775796a3949ed50dbcf xorg-font-util: commit 9f807dfb4e7bea7128b7538e41de78bb5994ca80 xorg-macros: commit 08dd5d30c137abe43d5b1673edc39eb569881d66 xproto: commit 06ebd5b88bee8c54222bde3178dc773776036802 xserver: commit 73c05be80a1d682ff623e66f47e87403d94caef5 I'm going to start digging, see if I can work out where my texture goes missing, but all advice would be gratefully received; my goal is to keep the pixmap GPU-side if possible, while copying its contents to a separate texture. -- Configure bugmail: https://bugs.freedesktop.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug.

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[PATCH] drm/radeon/kms: fix DDIA enable on some rs690 systems
by alexdeucher＠gmail.com 22 Sep '11

22 Sep '11

From: Alex Deucher <alexander.deucher(a)amd.com> DVOOutputControl checks the value of of bios scratch reg 3 on some tables and assumes the encoder is already enabled if the DFP2_ACTIVE bit is set. Clear that bit so the table sets the DDIA enable bit properly. Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)kernel.org --- drivers/gpu/drm/radeon/radeon_encoders.c | 9 ++++++++- 1 files changed, 8 insertions(+), 1 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_encoders.c b/drivers/gpu/drm/radeon/radeon_encoders.c index 9c1fdb2..2554fe3 100644 --- a/drivers/gpu/drm/radeon/radeon_encoders.c +++ b/drivers/gpu/drm/radeon/radeon_encoders.c @@ -1505,7 +1505,14 @@ radeon_atom_encoder_dpms(struct drm_encoder *encoder, int mode) switch (mode) { case DRM_MODE_DPMS_ON: args.ucAction = ATOM_ENABLE; - atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + /* workaround for DVOOutputControl on some RS690 systems */ + if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_DDI) { + u32 reg = RREG32(RADEON_BIOS_3_SCRATCH); + WREG32(RADEON_BIOS_3_SCRATCH, reg & ~ATOM_S3_DFP2I_ACTIVE); + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); + WREG32(RADEON_BIOS_3_SCRATCH, reg); + } else + atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) { args.ucAction = ATOM_LCD_BLON; atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args); -- 1.7.1.1

1 0

[PATCH v4] DRM: add DRM Driver for Samsung SoC EXYNOS4210.
by Inki Dae 22 Sep '11

22 Sep '11

This patch is a DRM Driver for Samsung SoC Exynos4210 and now enables only FIMD yet but we will add HDMI support also in the future. from now on, I will remove RFC prefix because I think we have got comments enough. this patch is based on git repository below: git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git, branch name: drm-next commit-id: bcc65fd8e929a9d9d34d814d6efc1d2793546922 you can refer to our working repository below: http://git.infradead.org/users/kmpark/linux-2.6-samsung branch name: samsung-drm We tried to re-use lowlevel codes of the FIMD driver(s3c-fb.c based on Linux framebuffer) but couldn't so because lowlevel codes of s3c-fb.c are included internally and so FIMD module of this driver has its own lowlevel codes. We used GEM framework for buffer management and DMA APIs(dma_alloc_*) for buffer allocation. by using DMA API, we could use CMA later. Refer to this link for CMA(Continuous Memory Allocator): http://lkml.org/lkml/2011/7/20/45 this driver supports only physically continuous memory(non-iommu). Links to previous versions of the patchset: v1: < https://lwn.net/Articles/454380/ > v2: < http://www.spinics.net/lists/kernel/msg1224275.html > v3: < http://www.gossamer-threads.com/lists/linux/kernel/1423684 > Changelog v2: DRM: add DRM_IOCTL_SAMSUNG_GEM_MMAP ioctl command. this feature maps user address space to physical memory region once user application requests DRM_IOCTL_SAMSUNG_GEM_MMAP ioctl. DRM: code clean and add exception codes. Changelog v3: DRM: Support multiple irq. FIMD and HDMI have their own irq handler but DRM Framework can regiter only one irq handler this patch supports mutiple irq for Samsung SoC. DRM: Consider modularization. each DRM, FIMD could be built as a module. DRM: Have indenpendent crtc object. crtc isn't specific to SoC Platform so this patch gets a crtc to be used as common object. created crtc could be attached to any encoder object. DRM: code clean and add exception codes. Changelog v4: DRM: remove is_defult from samsung_fb. is_default isn't used for default framebuffer. DRM: code refactoring to fimd module. this patch is be considered with multiple display objects and would use its own request_irq() to register a irq handler instead of drm framework's one. DRM: remove find_samsung_drm_gem_object() DRM: move kernel private data structures and definitions to driver folder. samsung_drm.h would contain only public information for userspace ioctl interface. DRM: code refactoring to gem modules. buffer module isn't dependent of gem module anymore. DRM: fixed security issue. DRM: remove encoder porinter from specific connector. samsung connector doesn't need to have generic encoder. DRM: code clean and add exception codes. Signed-off-by: Inki Dae <inki.dae(a)samsung.com> Signed-off-by: Joonyoung Shim <jy0922.shim(a)samsung.com> Signed-off-by: SeungWoo Kim <sw0312.kim(a)samsung.com> Signed-off-by: kyungmin.park <kyungmin.park(a)samsung.com> --- drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/samsung/Kconfig | 18 + drivers/gpu/drm/samsung/Makefile | 11 + drivers/gpu/drm/samsung/samsung_drm_buf.c | 109 ++++ drivers/gpu/drm/samsung/samsung_drm_buf.h | 50 ++ drivers/gpu/drm/samsung/samsung_drm_connector.c | 257 +++++++++ drivers/gpu/drm/samsung/samsung_drm_connector.h | 34 ++ drivers/gpu/drm/samsung/samsung_drm_core.c | 213 ++++++++ drivers/gpu/drm/samsung/samsung_drm_crtc.c | 329 ++++++++++++ drivers/gpu/drm/samsung/samsung_drm_crtc.h | 38 ++ drivers/gpu/drm/samsung/samsung_drm_drv.c | 215 ++++++++ drivers/gpu/drm/samsung/samsung_drm_drv.h | 194 +++++++ drivers/gpu/drm/samsung/samsung_drm_encoder.c | 261 +++++++++ drivers/gpu/drm/samsung/samsung_drm_encoder.h | 45 ++ drivers/gpu/drm/samsung/samsung_drm_fb.c | 262 +++++++++ drivers/gpu/drm/samsung/samsung_drm_fb.h | 47 ++ drivers/gpu/drm/samsung/samsung_drm_fbdev.c | 409 ++++++++++++++ drivers/gpu/drm/samsung/samsung_drm_fbdev.h | 37 ++ drivers/gpu/drm/samsung/samsung_drm_fimd.c | 643 +++++++++++++++++++++++ drivers/gpu/drm/samsung/samsung_drm_gem.c | 492 +++++++++++++++++ drivers/gpu/drm/samsung/samsung_drm_gem.h | 98 ++++ include/drm/samsung_drm.h | 103 ++++ 23 files changed, 3868 insertions(+), 0 deletions(-) create mode 100644 drivers/gpu/drm/samsung/Kconfig create mode 100644 drivers/gpu/drm/samsung/Makefile create mode 100644 drivers/gpu/drm/samsung/samsung_drm_buf.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_buf.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_connector.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_connector.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_core.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_crtc.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_crtc.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_drv.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_drv.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_encoder.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_encoder.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_fb.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_fb.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_fbdev.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_fbdev.h create mode 100644 drivers/gpu/drm/samsung/samsung_drm_fimd.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_gem.c create mode 100644 drivers/gpu/drm/samsung/samsung_drm_gem.h create mode 100644 include/drm/samsung_drm.h diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig index b493663..ce6d3ec 100644 --- a/drivers/gpu/drm/Kconfig +++ b/drivers/gpu/drm/Kconfig @@ -158,3 +158,5 @@ config DRM_SAVAGE help Choose this option if you have a Savage3D/4/SuperSavage/Pro/Twister chipset. If M is selected the module will be called savage. + +source "drivers/gpu/drm/samsung/Kconfig" diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 89cf05a..0c6e773 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -35,4 +35,5 @@ obj-$(CONFIG_DRM_SAVAGE)+= savage/ obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/ obj-$(CONFIG_DRM_VIA) +=via/ obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/ +obj-$(CONFIG_DRM_SAMSUNG) +=samsung/ obj-y += i2c/ diff --git a/drivers/gpu/drm/samsung/Kconfig b/drivers/gpu/drm/samsung/Kconfig new file mode 100644 index 0000000..34cedda --- /dev/null +++ b/drivers/gpu/drm/samsung/Kconfig @@ -0,0 +1,18 @@ +config DRM_SAMSUNG + tristate "DRM Support for Samsung SoC EXYNOS Series" + depends on DRM && PLAT_SAMSUNG + select DRM_KMS_HELPER + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + select VT_HW_CONSOLE_BINDING if FRAMEBUFFER_CONSOLE + help + Choose this option if you have a Samsung SoC EXYNOS chipset. + If M is selected the module will be called samsungdrm. + +config DRM_SAMSUNG_FIMD + tristate "Samsung DRM FIMD" + depends on DRM_SAMSUNG + help + Choose this option if you want to use Samsung FIMD for DRM. + If M is selected, the module will be called samsung_drm_fimd diff --git a/drivers/gpu/drm/samsung/Makefile b/drivers/gpu/drm/samsung/Makefile new file mode 100644 index 0000000..70f89f3 --- /dev/null +++ b/drivers/gpu/drm/samsung/Makefile @@ -0,0 +1,11 @@ +# +# Makefile for the drm device driver. This driver provides support for the +# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher. + +ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/samsung +samsungdrm-y := samsung_drm_drv.o samsung_drm_encoder.o samsung_drm_connector.o \ + samsung_drm_crtc.o samsung_drm_fbdev.o samsung_drm_fb.o \ + samsung_drm_buf.o samsung_drm_gem.o samsung_drm_core.o + +obj-$(CONFIG_DRM_SAMSUNG) += samsungdrm.o +obj-$(CONFIG_DRM_SAMSUNG_FIMD) += samsung_drm_fimd.o diff --git a/drivers/gpu/drm/samsung/samsung_drm_buf.c b/drivers/gpu/drm/samsung/samsung_drm_buf.c new file mode 100644 index 0000000..46cc673 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_buf.c @@ -0,0 +1,109 @@ +/* samsung_drm_buf.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Author: Inki Dae <inki.dae(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm.h" + +#include "samsung_drm_drv.h" +#include "samsung_drm_buf.h" + +static DEFINE_MUTEX(samsung_drm_buf_lock); + +static int lowlevel_buffer_allocate(struct drm_device *dev, + struct samsung_drm_buf_entry *entry) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + entry->vaddr = dma_alloc_writecombine(dev->dev, entry->size, + (dma_addr_t *)&entry->paddr, GFP_KERNEL); + if (!entry->paddr) { + DRM_ERROR("failed to allocate buffer.\n"); + return -ENOMEM; + } + + DRM_DEBUG_KMS("allocated : vaddr(0x%x), paddr(0x%x), size(0x%x)\n", + (unsigned int)entry->vaddr, entry->paddr, entry->size); + + return 0; +} + +static void lowlevel_buffer_deallocate(struct drm_device *dev, + struct samsung_drm_buf_entry *entry) +{ + DRM_DEBUG_KMS("%s.\n", __FILE__); + + dma_free_writecombine(dev->dev, entry->size, entry->vaddr, + entry->paddr); + + DRM_DEBUG_KMS("deallocated : vaddr(0x%x), paddr(0x%x), size(0x%x)\n", + (unsigned int)entry->vaddr, entry->paddr, entry->size); +} + +static void samsung_drm_buf_del(struct drm_device *dev, + struct samsung_drm_buf_entry *entry) +{ + DRM_DEBUG_KMS("%s.\n", __FILE__); + + lowlevel_buffer_deallocate(dev, entry); + + kfree(entry); +} + +struct samsung_drm_buf_entry *samsung_drm_buf_create(struct drm_device *dev, + unsigned int size) +{ + struct samsung_drm_buf_entry *entry; + + DRM_DEBUG_KMS("%s.\n", __FILE__); + DRM_DEBUG_KMS("desired size = 0x%x\n", size); + + entry = kzalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) { + DRM_ERROR("failed to allocate samsung_drm_buf_entry.\n"); + return ERR_PTR(-ENOMEM); + } + + entry->size = size; + + /* allocate memory region and set it to vaddr and paddr. */ + if (lowlevel_buffer_allocate(dev, entry) < 0) { + kfree(entry); + return ERR_PTR(-ENOMEM); + } + + return entry; +} + +void samsung_drm_buf_destroy(struct drm_device *dev, + struct samsung_drm_buf_entry *entry) +{ + DRM_DEBUG_KMS("%s.\n", __FILE__); + + samsung_drm_buf_del(dev, entry); +} + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM Buffer Management Module"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_buf.h b/drivers/gpu/drm/samsung/samsung_drm_buf.h new file mode 100644 index 0000000..b6d7393 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_buf.h @@ -0,0 +1,50 @@ +/* samsung_drm_buf.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Author: Inki Dae <inki.dae(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_BUF_H_ +#define _SAMSUNG_DRM_BUF_H_ + +/** + * samsung drm buffer entry structure. + * + * @paddr: physical address of allocated memory. + * @vaddr: kernel virtual address of allocated memory. + * @size: size of allocated memory. + */ +struct samsung_drm_buf_entry { + dma_addr_t paddr; + void __iomem *vaddr; + unsigned int size; +}; + +/* allocate physical memory. */ +struct samsung_drm_buf_entry *samsung_drm_buf_create(struct drm_device *dev, + unsigned int size); + +/* remove allocated physical memory. */ +void samsung_drm_buf_destroy(struct drm_device *dev, + struct samsung_drm_buf_entry *entry); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_connector.c b/drivers/gpu/drm/samsung/samsung_drm_connector.c new file mode 100644 index 0000000..cf457c0 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_connector.c @@ -0,0 +1,257 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm_crtc_helper.h" + +#include "samsung_drm_drv.h" +#include "samsung_drm_encoder.h" + +#define MAX_EDID 256 +#define to_samsung_connector(x) container_of(x, struct samsung_drm_connector,\ + drm_connector) + +struct samsung_drm_connector { + struct drm_connector drm_connector; + + /* add hardware specific callbacks or data structure. */ +}; + +/* convert samsung_video_timings to drm_display_mode */ +static inline void +convert_to_display_mode(struct drm_display_mode *mode, + struct fb_videomode *timing) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + mode->clock = timing->pixclock / 1000; + + mode->hdisplay = timing->xres; + mode->hsync_start = mode->hdisplay + timing->left_margin; + mode->hsync_end = mode->hsync_start + timing->hsync_len; + mode->htotal = mode->hsync_end + timing->right_margin; + + mode->vdisplay = timing->yres; + mode->vsync_start = mode->vdisplay + timing->upper_margin; + mode->vsync_end = mode->vsync_start + timing->vsync_len; + mode->vtotal = mode->vsync_end + timing->lower_margin; +} + +/* convert drm_display_mode to samsung_video_timings */ +static inline void +convert_to_video_timing(struct fb_videomode *timing, + struct drm_display_mode *mode) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + timing->pixclock = mode->clock * 1000; + + timing->xres = mode->hdisplay; + timing->left_margin = mode->hsync_start - mode->hdisplay; + timing->hsync_len = mode->hsync_end - mode->hsync_start; + timing->right_margin = mode->htotal - mode->hsync_end; + + timing->yres = mode->vdisplay; + timing->upper_margin = mode->vsync_start - mode->vdisplay; + timing->vsync_len = mode->vsync_end - mode->vsync_start; + timing->lower_margin = mode->vtotal - mode->vsync_end; +} + +static int samsung_drm_connector_get_modes(struct drm_connector *connector) +{ + struct samsung_drm_manager *manager = + samsung_drm_get_manager(connector->encoder); + struct samsung_drm_display *display = manager->display; + unsigned int count; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (display && display->get_edid) { + void *edid = kzalloc(MAX_EDID, GFP_KERNEL); + if (!edid) { + DRM_ERROR("failed to allocate edid\n"); + return 0; + } + + display->get_edid(manager->dev, connector, edid, MAX_EDID); + + drm_mode_connector_update_edid_property(connector, edid); + count = drm_add_edid_modes(connector, edid); + + kfree(connector->display_info.raw_edid); + connector->display_info.raw_edid = edid; + } else { + struct drm_display_mode *mode = drm_mode_create(connector->dev); + struct fb_videomode *timing; + + if (display && display->get_timing) + timing = display->get_timing(manager->dev); + else + return 0; + + convert_to_display_mode(mode, timing); + + mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; + drm_mode_set_name(mode); + drm_mode_probed_add(connector, mode); + + count = 1; + } + + return count; +} + +static int samsung_drm_connector_mode_valid(struct drm_connector *connector, + struct drm_display_mode *mode) +{ + struct samsung_drm_manager *manager = + samsung_drm_get_manager(connector->encoder); + struct samsung_drm_display *display = manager->display; + struct fb_videomode timing; + int ret = MODE_BAD; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + convert_to_video_timing(&timing, mode); + + if (display && display->check_timing) + if (!display->check_timing(manager->dev, (void *)&timing)) + ret = MODE_OK; + + return ret; +} + +struct drm_encoder *samsung_drm_best_encoder(struct drm_connector *connector) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + return connector->encoder; +} + +static struct drm_connector_helper_funcs samsung_connector_helper_funcs = { + .get_modes = samsung_drm_connector_get_modes, + .mode_valid = samsung_drm_connector_mode_valid, + .best_encoder = samsung_drm_best_encoder, +}; + +/* get detection status of display device. */ +static enum drm_connector_status +samsung_drm_connector_detect(struct drm_connector *connector, bool force) +{ + struct samsung_drm_manager *manager = + samsung_drm_get_manager(connector->encoder); + struct samsung_drm_display *display = manager->display; + enum drm_connector_status status = connector_status_disconnected; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (display && display->is_connected) { + if (display->is_connected(manager->dev)) + status = connector_status_connected; + else + status = connector_status_disconnected; + } + + return status; +} + +static void samsung_drm_connector_destroy(struct drm_connector *connector) +{ + struct samsung_drm_connector *samsung_connector = + to_samsung_connector(connector); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + drm_sysfs_connector_remove(connector); + drm_connector_cleanup(connector); + kfree(samsung_connector); +} + +static struct drm_connector_funcs samsung_connector_funcs = { + .dpms = drm_helper_connector_dpms, + .fill_modes = drm_helper_probe_single_connector_modes, + .detect = samsung_drm_connector_detect, + .destroy = samsung_drm_connector_destroy, +}; + +struct drm_connector *samsung_drm_connector_create(struct drm_device *dev, + struct drm_encoder *encoder) +{ + struct samsung_drm_connector *samsung_connector; + struct samsung_drm_manager *manager = samsung_drm_get_manager(encoder); + struct drm_connector *connector; + int type; + int err; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_connector = kzalloc(sizeof(*samsung_connector), GFP_KERNEL); + if (!samsung_connector) { + DRM_ERROR("failed to allocate connector\n"); + return NULL; + } + + connector = &samsung_connector->drm_connector; + + switch (manager->display->type) { + case SAMSUNG_DISPLAY_TYPE_HDMI: + type = DRM_MODE_CONNECTOR_HDMIA; + break; + default: + type = DRM_MODE_CONNECTOR_Unknown; + break; + } + + drm_connector_init(dev, connector, &samsung_connector_funcs, type); + drm_connector_helper_add(connector, &samsung_connector_helper_funcs); + + err = drm_sysfs_connector_add(connector); + if (err) + goto err_connector; + + connector->encoder = encoder; + err = drm_mode_connector_attach_encoder(connector, encoder); + if (err) { + DRM_ERROR("failed to attach a connector to a encoder\n"); + goto err_sysfs; + } + + DRM_DEBUG_KMS("connector has been created\n"); + + return connector; + +err_sysfs: + drm_sysfs_connector_remove(connector); +err_connector: + drm_connector_cleanup(connector); + kfree(samsung_connector); + return NULL; +} + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM Connector Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_connector.h b/drivers/gpu/drm/samsung/samsung_drm_connector.h new file mode 100644 index 0000000..638d2b3 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_connector.h @@ -0,0 +1,34 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_CONNECTOR_H_ +#define _SAMSUNG_DRM_CONNECTOR_H_ + +struct drm_connector *samsung_drm_connector_create(struct drm_device *dev, + struct drm_encoder *encoder); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_core.c b/drivers/gpu/drm/samsung/samsung_drm_core.c new file mode 100644 index 0000000..752c94c --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_core.c @@ -0,0 +1,213 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Author: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "samsung_drm_drv.h" +#include "samsung_drm_encoder.h" +#include "samsung_drm_connector.h" +#include "samsung_drm_fbdev.h" + +static DEFINE_MUTEX(samsung_drm_mutex); +static LIST_HEAD(samsung_drm_subdrv_list); +static struct drm_device *drm_dev; + +static int samsung_drm_subdrv_probe(struct drm_device *dev, + struct samsung_drm_subdrv *subdrv) +{ + struct drm_encoder *encoder; + struct drm_connector *connector; + int ret; + + if (subdrv->probe) { + ret = subdrv->probe(dev); + if (ret) + return ret; + } + + /* all crtc is available */ + encoder = samsung_drm_encoder_create(dev, &subdrv->manager, + (1 << MAX_CRTC) - 1); + if (!encoder) { + DRM_ERROR("failed to create encoder\n"); + return -EFAULT; + } + + connector = samsung_drm_connector_create(dev, encoder); + if (!connector) { + DRM_ERROR("failed to create connector\n"); + encoder->funcs->destroy(encoder); + return -EFAULT; + } + + subdrv->encoder = encoder; + subdrv->connector = connector; + + return 0; +} + +static void samsung_drm_subdrv_remove(struct drm_device *dev, + struct samsung_drm_subdrv *subdrv) +{ + if (subdrv->remove) + subdrv->remove(dev); + + if (subdrv->encoder) { + struct drm_encoder *encoder = subdrv->encoder; + encoder->funcs->destroy(encoder); + subdrv->encoder = NULL; + } + + if (subdrv->connector) { + struct drm_connector *connector = subdrv->connector; + connector->funcs->destroy(connector); + subdrv->connector = NULL; + } +} + +int samsung_drm_device_register(struct drm_device *dev) +{ + struct samsung_drm_subdrv *subdrv, *n; + int err; + + if (!dev) + return -EINVAL; + + if (drm_dev) { + DRM_ERROR("Already drm device were registered\n"); + return -EBUSY; + } + + mutex_lock(&samsung_drm_mutex); + list_for_each_entry_safe(subdrv, n, &samsung_drm_subdrv_list, list) { + err = samsung_drm_subdrv_probe(dev, subdrv); + if (err) { + DRM_ERROR("samsung drm subdrv probe failed\n"); + list_del(&subdrv->list); + } + } + + drm_dev = dev; + mutex_unlock(&samsung_drm_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(samsung_drm_device_register); + +void samsung_drm_device_unregister(struct drm_device *dev) +{ + struct samsung_drm_subdrv *subdrv; + + if (!dev || dev != drm_dev) { + WARN(1, "Unexpected drm device unregister!\n"); + return; + } + + mutex_lock(&samsung_drm_mutex); + list_for_each_entry(subdrv, &samsung_drm_subdrv_list, list) + samsung_drm_subdrv_remove(dev, subdrv); + + drm_dev = NULL; + mutex_unlock(&samsung_drm_mutex); +} +EXPORT_SYMBOL_GPL(samsung_drm_device_unregister); + +static int samsung_drm_mode_group_reinit(struct drm_device *dev) +{ + struct drm_mode_group *group = &dev->primary->mode_group; + uint32_t *id_list = group->id_list; + int ret; + + ret = drm_mode_group_init_legacy_group(dev, group); + if (ret < 0) + return ret; + + kfree(id_list); + return 0; +} + +int samsung_drm_subdrv_register(struct samsung_drm_subdrv *subdrv) +{ + int err; + + if (!subdrv) + return -EINVAL; + + mutex_lock(&samsung_drm_mutex); + if (drm_dev) { + err = samsung_drm_subdrv_probe(drm_dev, subdrv); + if (err) { + DRM_ERROR("failed to probe samsung drm subdrv\n"); + mutex_unlock(&samsung_drm_mutex); + return err; + } + + err = samsung_drm_fbdev_reinit(drm_dev); + if (err) { + DRM_ERROR("failed to reinitialize samsung drm fbdev\n"); + samsung_drm_subdrv_remove(drm_dev, subdrv); + mutex_unlock(&samsung_drm_mutex); + return err; + } + + err = samsung_drm_mode_group_reinit(drm_dev); + if (err) { + DRM_ERROR("failed to reinitialize mode group\n"); + samsung_drm_fbdev_fini(drm_dev); + samsung_drm_subdrv_remove(drm_dev, subdrv); + mutex_unlock(&samsung_drm_mutex); + return err; + } + } + + subdrv->drm_dev = drm_dev; + + list_add_tail(&subdrv->list, &samsung_drm_subdrv_list); + mutex_unlock(&samsung_drm_mutex); + + return 0; +} +EXPORT_SYMBOL_GPL(samsung_drm_subdrv_register); + +void samsung_drm_subdrv_unregister(struct samsung_drm_subdrv *subdrv) +{ + if (!subdrv) { + WARN(1, "Unexpected samsung drm subdrv unregister!\n"); + return; + } + + mutex_lock(&samsung_drm_mutex); + if (drm_dev) { + samsung_drm_subdrv_remove(drm_dev, subdrv); + + /* FIXME: error check */ + samsung_drm_fbdev_reinit(drm_dev); + samsung_drm_mode_group_reinit(drm_dev); + } + + list_del(&subdrv->list); + mutex_unlock(&samsung_drm_mutex); +} +EXPORT_SYMBOL_GPL(samsung_drm_subdrv_unregister); diff --git a/drivers/gpu/drm/samsung/samsung_drm_crtc.c b/drivers/gpu/drm/samsung/samsung_drm_crtc.c new file mode 100644 index 0000000..5836757 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_crtc.c @@ -0,0 +1,329 @@ +/* samsung_drm_crtc.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm_crtc_helper.h" + +#include "samsung_drm_drv.h" +#include "samsung_drm_fb.h" +#include "samsung_drm_encoder.h" + +#define to_samsung_crtc(x) container_of(x, struct samsung_drm_crtc,\ + drm_crtc) + +/* + * @fb_x: horizontal position from framebuffer base + * @fb_y: vertical position from framebuffer base + * @base_x: horizontal position from screen base + * @base_y: vertical position from screen base + * @crtc_w: width of crtc + * @crtc_h: height of crtc + */ +struct samsung_drm_crtc_pos { + unsigned int fb_x; + unsigned int fb_y; + unsigned int base_x; + unsigned int base_y; + unsigned int crtc_w; + unsigned int crtc_h; +}; + +struct samsung_drm_crtc { + struct drm_crtc drm_crtc; + struct samsung_drm_overlay overlay; + unsigned int pipe; +}; + +static void samsung_drm_overlay_update(struct samsung_drm_overlay *overlay, + struct drm_framebuffer *fb, + struct drm_display_mode *mode, + struct samsung_drm_crtc_pos *pos) +{ + struct samsung_drm_buffer_info buffer_info; + unsigned int actual_w = pos->crtc_w; + unsigned int actual_h = pos->crtc_h; + unsigned int hw_w; + unsigned int hw_h; + + /* update buffer address of framebuffer. */ + samsung_drm_fb_update_buf_off(fb, pos->fb_x, pos->fb_y, &buffer_info); + overlay->paddr = buffer_info.paddr; + overlay->vaddr = buffer_info.vaddr; + + hw_w = mode->hdisplay - pos->base_x; + hw_h = mode->vdisplay - pos->base_y; + + if (actual_w > hw_w) + actual_w = hw_w; + if (actual_h > hw_h) + actual_h = hw_h; + + overlay->offset_x = pos->base_x; + overlay->offset_y = pos->base_y; + overlay->width = actual_w; + overlay->height = actual_h; + + DRM_DEBUG_KMS("overlay : offset_x/y(%d,%d), width/height(%d,%d)", + overlay->offset_x, overlay->offset_y, + overlay->width, overlay->height); + + overlay->buf_offsize = fb->width - actual_w; + overlay->line_size = actual_w; + overlay->end_buf_off = fb->width * actual_h; +} + +static int samsung_drm_crtc_update(struct drm_crtc *crtc) +{ + struct samsung_drm_crtc *samsung_crtc; + struct samsung_drm_overlay *overlay; + struct samsung_drm_crtc_pos pos; + struct drm_display_mode *mode = &crtc->mode; + struct drm_framebuffer *fb = crtc->fb; + + if (!mode || !fb) + return -EINVAL; + + samsung_crtc = to_samsung_crtc(crtc); + overlay = &samsung_crtc->overlay; + + memset(&pos, 0, sizeof(struct samsung_drm_crtc_pos)); + pos.fb_x = crtc->x; + pos.fb_y = crtc->y; + pos.crtc_w = fb->width - crtc->x; + pos.crtc_h = fb->height - crtc->y; + + samsung_drm_overlay_update(overlay, crtc->fb, mode, &pos); + + return 0; +} + +/* CRTC helper functions */ +static void samsung_drm_crtc_dpms(struct drm_crtc *crtc, int mode) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + /* TODO */ +} + +static void samsung_drm_crtc_prepare(struct drm_crtc *crtc) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + /* drm framework doesn't check NULL. */ +} + +static void samsung_drm_crtc_commit(struct drm_crtc *crtc) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + /* drm framework doesn't check NULL. */ +} + +static bool +samsung_drm_crtc_mode_fixup(struct drm_crtc *crtc, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + /* drm framework doesn't check NULL */ + return true; +} + +static int +samsung_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode, int x, int y, + struct drm_framebuffer *old_fb) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + mode = adjusted_mode; + + return samsung_drm_crtc_update(crtc); +} + +static int samsung_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, + struct drm_framebuffer *old_fb) +{ + struct samsung_drm_crtc *samsung_crtc = to_samsung_crtc(crtc); + struct samsung_drm_overlay *overlay = &samsung_crtc->overlay; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + ret = samsung_drm_crtc_update(crtc); + if (ret) + return ret; + + samsung_drm_fn_encoder(crtc, overlay, + samsung_drm_encoder_crtc_mode_set); + samsung_drm_fn_encoder(crtc, NULL, samsung_drm_encoder_crtc_commit); + + return ret; +} + +static void samsung_drm_crtc_load_lut(struct drm_crtc *crtc) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + /* drm framework doesn't check NULL */ +} + +static struct drm_crtc_helper_funcs samsung_crtc_helper_funcs = { + .dpms = samsung_drm_crtc_dpms, + .prepare = samsung_drm_crtc_prepare, + .commit = samsung_drm_crtc_commit, + .mode_fixup = samsung_drm_crtc_mode_fixup, + .mode_set = samsung_drm_crtc_mode_set, + .mode_set_base = samsung_drm_crtc_mode_set_base, + .load_lut = samsung_drm_crtc_load_lut, +}; + +/* CRTC functions */ +static int samsung_drm_crtc_page_flip(struct drm_crtc *crtc, + struct drm_framebuffer *fb, + struct drm_pending_vblank_event *event) +{ + struct drm_device *dev = crtc->dev; + struct samsung_drm_private *dev_priv = dev->dev_private; + struct samsung_drm_crtc *samsung_crtc = to_samsung_crtc(crtc); + struct samsung_drm_overlay *overlay = &samsung_crtc->overlay; + struct drm_framebuffer *old_fb = crtc->fb; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + mutex_lock(&dev->struct_mutex); + + if (event && !dev_priv->pageflip_event) { + list_add_tail(&event->base.link, + &dev_priv->pageflip_event_list); + + ret = drm_vblank_get(dev, samsung_crtc->pipe); + if (ret) { + DRM_DEBUG("failed to acquire vblank counter\n"); + goto out; + } + + dev_priv->pageflip_event = true; + } + + crtc->fb = fb; + + ret = samsung_drm_crtc_update(crtc); + if (ret) { + crtc->fb = old_fb; + if (event && dev_priv->pageflip_event) { + drm_vblank_put(dev, samsung_crtc->pipe); + dev_priv->pageflip_event = false; + } + + goto out; + } + + samsung_drm_fn_encoder(crtc, overlay, + samsung_drm_encoder_crtc_mode_set); + samsung_drm_fn_encoder(crtc, NULL, samsung_drm_encoder_crtc_commit); + +out: + mutex_unlock(&dev->struct_mutex); + return ret; +} + +static void samsung_drm_crtc_destroy(struct drm_crtc *crtc) +{ + struct samsung_drm_crtc *samsung_crtc = to_samsung_crtc(crtc); + struct samsung_drm_private *private = crtc->dev->dev_private; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + private->crtc[samsung_crtc->pipe] = NULL; + + drm_crtc_cleanup(crtc); + kfree(samsung_crtc); +} + +static struct drm_crtc_funcs samsung_crtc_funcs = { + .set_config = drm_crtc_helper_set_config, + .page_flip = samsung_drm_crtc_page_flip, + .destroy = samsung_drm_crtc_destroy, +}; + +struct samsung_drm_overlay *get_samsung_drm_overlay(struct drm_device *dev, + struct drm_crtc *crtc) +{ + struct samsung_drm_crtc *samsung_crtc = to_samsung_crtc(crtc); + + return &samsung_crtc->overlay; +} + +int samsung_drm_crtc_create(struct drm_device *dev, unsigned int nr) +{ + struct samsung_drm_crtc *samsung_crtc; + struct samsung_drm_private *private = dev->dev_private; + struct drm_crtc *crtc; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_crtc = kzalloc(sizeof(*samsung_crtc), GFP_KERNEL); + if (!samsung_crtc) { + DRM_ERROR("failed to allocate samsung crtc\n"); + return -ENOMEM; + } + + samsung_crtc->pipe = nr; + crtc = &samsung_crtc->drm_crtc; + + private->crtc[nr] = crtc; + + drm_crtc_init(dev, crtc, &samsung_crtc_funcs); + drm_crtc_helper_add(crtc, &samsung_crtc_helper_funcs); + + return 0; +} + +int samsung_drm_crtc_enable_vblank(struct drm_device *dev, int crtc) +{ + struct samsung_drm_private *private = dev->dev_private; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_drm_fn_encoder(private->crtc[crtc], &crtc, + samsung_drm_enable_vblank); + + return 0; +} + +void samsung_drm_crtc_disable_vblank(struct drm_device *dev, int crtc) +{ + struct samsung_drm_private *private = dev->dev_private; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_drm_fn_encoder(private->crtc[crtc], &crtc, + samsung_drm_disable_vblank); +} + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM CRTC Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_crtc.h b/drivers/gpu/drm/samsung/samsung_drm_crtc.h new file mode 100644 index 0000000..c6998e1 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_crtc.h @@ -0,0 +1,38 @@ +/* samsung_drm_crtc.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_CRTC_H_ +#define _SAMSUNG_DRM_CRTC_H_ + +struct samsung_drm_overlay *get_samsung_drm_overlay(struct drm_device *dev, + struct drm_crtc *crtc); +int samsung_drm_crtc_create(struct drm_device *dev, unsigned int nr); +int samsung_drm_crtc_enable_vblank(struct drm_device *dev, int crtc); +void samsung_drm_crtc_disable_vblank(struct drm_device *dev, int crtc); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_drv.c b/drivers/gpu/drm/samsung/samsung_drm_drv.c new file mode 100644 index 0000000..6e812b3 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_drv.c @@ -0,0 +1,215 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm.h" + +#include <drm/samsung_drm.h> + +#include "samsung_drm_drv.h" +#include "samsung_drm_crtc.h" +#include "samsung_drm_fbdev.h" +#include "samsung_drm_fb.h" +#include "samsung_drm_gem.h" + +#define DRIVER_NAME "samsung-drm" +#define DRIVER_DESC "Samsung SoC DRM" +#define DRIVER_DATE "20110530" +#define DRIVER_MAJOR 1 +#define DRIVER_MINOR 0 + +static int samsung_drm_load(struct drm_device *dev, unsigned long flags) +{ + struct samsung_drm_private *private; + int ret; + int nr; + + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + private = kzalloc(sizeof(struct samsung_drm_private), GFP_KERNEL); + if (!private) { + DRM_ERROR("failed to allocate private\n"); + return -ENOMEM; + } + + INIT_LIST_HEAD(&private->pageflip_event_list); + dev->dev_private = (void *)private; + + drm_mode_config_init(dev); + + samsung_drm_mode_config_init(dev); + + for (nr = 0; nr < MAX_CRTC; nr++) { + ret = samsung_drm_crtc_create(dev, nr); + if (ret) + goto err_crtc; + } + + ret = drm_vblank_init(dev, MAX_CRTC); + if (ret) + goto err_crtc; + + ret = samsung_drm_device_register(dev); + if (ret) + goto err_vblank; + + ret = samsung_drm_fbdev_init(dev); + if (ret) { + DRM_ERROR("failed to initialize drm fbdev\n"); + goto err_drm_device; + } + + return 0; + +err_drm_device: + samsung_drm_device_unregister(dev); +err_vblank: + drm_vblank_cleanup(dev); +err_crtc: + drm_mode_config_cleanup(dev); + kfree(private); + + return ret; +} + +static int samsung_drm_unload(struct drm_device *dev) +{ + samsung_drm_fbdev_fini(dev); + samsung_drm_device_unregister(dev); + drm_vblank_cleanup(dev); + drm_mode_config_cleanup(dev); + kfree(dev->dev_private); + + return 0; +} + +static int samsung_drm_open(struct drm_device *dev, struct drm_file *file_priv) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + return 0; +} + +static void samsung_drm_lastclose(struct drm_device *dev) +{ + samsung_drm_fbdev_restore_mode(dev); +} + +static struct vm_operations_struct samsung_drm_gem_vm_ops = { + .fault = samsung_drm_gem_fault, + .open = drm_gem_vm_open, + .close = drm_gem_vm_close, +}; + +static struct drm_ioctl_desc samsung_ioctls[] = { + DRM_IOCTL_DEF_DRV(SAMSUNG_GEM_CREATE, samsung_drm_gem_create_ioctl, + DRM_UNLOCKED | DRM_AUTH), + DRM_IOCTL_DEF_DRV(SAMSUNG_GEM_MAP_OFFSET, + samsung_drm_gem_map_offset_ioctl, DRM_UNLOCKED | + DRM_AUTH), + DRM_IOCTL_DEF_DRV(SAMSUNG_GEM_MMAP, + samsung_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH), +}; + +static struct drm_driver samsung_drm_driver = { + .driver_features = DRIVER_HAVE_IRQ | DRIVER_BUS_PLATFORM | + DRIVER_MODESET | DRIVER_GEM, + .load = samsung_drm_load, + .unload = samsung_drm_unload, + .open = samsung_drm_open, + .lastclose = samsung_drm_lastclose, + .get_vblank_counter = drm_vblank_count, + .enable_vblank = samsung_drm_crtc_enable_vblank, + .disable_vblank = samsung_drm_crtc_disable_vblank, + .gem_init_object = samsung_drm_gem_init_object, + .gem_free_object = samsung_drm_gem_free_object, + .gem_vm_ops = &samsung_drm_gem_vm_ops, + .dumb_create = samsung_drm_gem_dumb_create, + .dumb_map_offset = samsung_drm_gem_dumb_map_offset, + .dumb_destroy = samsung_drm_gem_dumb_destroy, + .ioctls = samsung_ioctls, + .fops = { + .owner = THIS_MODULE, + .open = drm_open, + .mmap = samsung_drm_gem_mmap, + .poll = drm_poll, + .read = drm_read, + .unlocked_ioctl = drm_ioctl, + .release = drm_release, + }, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, +}; + +static int samsung_drm_platform_probe(struct platform_device *pdev) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + samsung_drm_driver.num_ioctls = DRM_ARRAY_SIZE(samsung_ioctls); + + return drm_platform_init(&samsung_drm_driver, pdev); +} + +static int samsung_drm_platform_remove(struct platform_device *pdev) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + drm_platform_exit(&samsung_drm_driver, pdev); + + return 0; +} + +static struct platform_driver samsung_drm_platform_driver = { + .probe = samsung_drm_platform_probe, + .remove = __devexit_p(samsung_drm_platform_remove), + .driver = { + .owner = THIS_MODULE, + .name = DRIVER_NAME, + }, +}; + +static int __init samsung_drm_init(void) +{ + DRM_DEBUG_DRIVER("%s\n", __FILE__); + + return platform_driver_register(&samsung_drm_platform_driver); +} + +static void __exit samsung_drm_exit(void) +{ + platform_driver_unregister(&samsung_drm_platform_driver); +} + +module_init(samsung_drm_init); +module_exit(samsung_drm_exit); + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_drv.h b/drivers/gpu/drm/samsung/samsung_drm_drv.h new file mode 100644 index 0000000..a5a49c2 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_drv.h @@ -0,0 +1,194 @@ +/* samsung_drm_drv.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_DRV_H_ +#define _SAMSUNG_DRM_DRV_H_ + +#include "drm.h" + +#define MAX_CRTC 2 + +struct drm_device; +struct samsung_drm_overlay; +struct drm_connector; + +enum samsung_drm_output_type { + SAMSUNG_DISPLAY_TYPE_NONE, + SAMSUNG_DISPLAY_TYPE_LCD, /* RGB or CPU Interface. */ + SAMSUNG_DISPLAY_TYPE_HDMI, /* HDMI Interface. */ +}; + +/** + * Samsung drm overlay ops structure. + * + * @mode_set: copy drm overlay info to hw specific overlay info. + * @commit: set hw specific overlay into to hw. + */ +struct samsung_drm_overlay_ops { + void (*mode_set)(struct device *subdrv_dev, + struct samsung_drm_overlay *overlay); + void (*commit)(struct device *subdrv_dev); + void (*disable)(struct device *subdrv_dev); +}; + +/** + * Samsung drm common overlay structure. + * + * @win_num: window number. + * @offset_x: offset to x position. + * @offset_y: offset to y position. + * @pos_x: x position. + * @pos_y: y position. + * @width: window width. + * @height: window height. + * @bpp: bit per pixel. + * @paddr: physical memory address to this overlay. + * @vaddr: virtual memory addresss to this overlay. + * @buf_off: start offset of framebuffer to be displayed. + * @end_buf_off: end offset of framebuffer to be displayed. + * @buf_offsize: this value has result from + * (framebuffer width - display width) * bpp. + * @line_size: line size to this overlay memory in bytes. + * @default_win: a window to be enabled. + * @color_key: color key on or off. + * @index_color: if using color key feature then this value would be used + * as index color. + * @local_path: in case of lcd type, local path mode on or off. + * @transparency: transparency on or off. + * @activated: activated or not. + * @subdrv_dev: pointer to device object for subdrv device driver. + * @ops: pointer to samsung_drm_overlay_ops. + * + * this structure is common to Samsung SoC and would be copied + * to hardware specific overlay info. + */ +struct samsung_drm_overlay { + unsigned int offset_x; + unsigned int offset_y; + unsigned int width; + unsigned int height; + unsigned int paddr; + void __iomem *vaddr; + unsigned int buf_off; + unsigned int end_buf_off; + unsigned int buf_offsize; + unsigned int line_size; + + bool default_win; + bool color_key; + unsigned int index_color; + bool local_path; + bool transparency; + bool activated; +}; + +/** + * Samsung DRM Display Structure. + * - this structure is common to analog tv, digital tv and lcd panel. + * + * @dev: pointer to specific device object. + * @is_connected: check for that display is connected or not. + * @get_edid: get edid modes from display driver. + * @get_timing: get timing object from display driver. + * @check_timing: check if timing is valid or not. + * @power_on: display device on or off. + */ +struct samsung_drm_display { + unsigned int type; + bool (*is_connected)(struct device *dev); + int (*get_edid)(struct device *dev, struct drm_connector *connector, + u8 *edid, int len); + void *(*get_timing)(struct device *dev); + int (*check_timing)(struct device *dev, void *timing); + int (*power_on)(struct device *dev, int mode); +}; + +/** + * Samsung drm manager ops + * + * @mode_set: convert drm_display_mode to hw specific display mode and + * would be called by encoder->mode_set(). + * @commit: set current hw specific display mode to hw. + * @enable_vblank: specific driver callback for enabling vblank interrupt. + * @disable_vblank: specific driver callback for disabling vblank interrupt. + */ +struct samsung_drm_manager_ops { + void (*mode_set)(struct device *subdrv_dev, void *mode); + void (*commit)(struct device *subdrv_dev); + int (*enable_vblank)(struct device *subdrv_dev); + void (*disable_vblank)(struct device *subdrv_dev); +}; + +/** + * Samsung drm common manager structure. + * + * @dev: pointer to device object for subdrv device driver. + * @ops: ops pointer to samsung drm common framebuffer. + * ops of fimd or hdmi driver should be set to this ones. + */ +struct samsung_drm_manager { + struct device *dev; + int pipe; + struct samsung_drm_manager_ops *ops; + struct samsung_drm_overlay_ops *overlay_ops; + struct samsung_drm_display *display; +}; + +/** + * Samsung drm private structure. + */ +struct samsung_drm_private { + struct drm_fb_helper *fb_helper; + + /* for pageflip */ + struct list_head pageflip_event_list; + bool pageflip_event; + + struct drm_crtc *crtc[MAX_CRTC]; + + /* add some structures. */ +}; + +struct samsung_drm_subdrv { + struct list_head list; + struct drm_device *drm_dev; + + /* driver ops */ + int (*probe)(struct drm_device *dev); + void (*remove)(struct drm_device *dev); + + struct samsung_drm_manager manager; + struct drm_encoder *encoder; + struct drm_connector *connector; +}; + +int samsung_drm_device_register(struct drm_device *dev); +void samsung_drm_device_unregister(struct drm_device *dev); +int samsung_drm_subdrv_register(struct samsung_drm_subdrv *drm_subdrv); +void samsung_drm_subdrv_unregister(struct samsung_drm_subdrv *drm_subdrv); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_encoder.c b/drivers/gpu/drm/samsung/samsung_drm_encoder.c new file mode 100644 index 0000000..c875968 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_encoder.c @@ -0,0 +1,261 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm_crtc_helper.h" + +#include "samsung_drm_drv.h" +#include "samsung_drm_crtc.h" +#include "samsung_drm_encoder.h" + +#define to_samsung_encoder(x) container_of(x, struct samsung_drm_encoder,\ + drm_encoder) + +struct samsung_drm_encoder { + struct drm_encoder drm_encoder; + struct samsung_drm_manager *manager; +}; + +static void samsung_drm_encoder_dpms(struct drm_encoder *encoder, int mode) +{ + struct drm_device *dev = encoder->dev; + struct drm_connector *connector; + struct samsung_drm_manager *manager = samsung_drm_get_manager(encoder); + + DRM_DEBUG_KMS("%s, encoder dpms: %d\n", __FILE__, mode); + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (connector->encoder == encoder) { + struct samsung_drm_display *display = manager->display; + + if (display && display->power_on) + display->power_on(manager->dev, mode); + } + } +} + +static bool +samsung_drm_encoder_mode_fixup(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + return true; +} + +static void samsung_drm_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *dev = encoder->dev; + struct drm_connector *connector; + struct samsung_drm_manager *manager = samsung_drm_get_manager(encoder); + struct samsung_drm_manager_ops *manager_ops = manager->ops; + struct samsung_drm_overlay_ops *overlay_ops = manager->overlay_ops; + struct samsung_drm_overlay *overlay = get_samsung_drm_overlay(dev, + encoder->crtc); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + mode = adjusted_mode; + + list_for_each_entry(connector, &dev->mode_config.connector_list, head) { + if (connector->encoder == encoder) { + if (manager_ops && manager_ops->mode_set) + manager_ops->mode_set(manager->dev, mode); + + if (overlay_ops && overlay_ops->mode_set) + overlay_ops->mode_set(manager->dev, overlay); + } + } +} + +static void samsung_drm_encoder_prepare(struct drm_encoder *encoder) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); +} + +static void samsung_drm_encoder_commit(struct drm_encoder *encoder) +{ + struct samsung_drm_manager *manager = samsung_drm_get_manager(encoder); + struct samsung_drm_manager_ops *manager_ops = manager->ops; + struct samsung_drm_overlay_ops *overlay_ops = manager->overlay_ops; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (manager_ops && manager_ops->commit) + manager_ops->commit(manager->dev); + + if (overlay_ops && overlay_ops->commit) + overlay_ops->commit(manager->dev); +} + +static struct drm_crtc * +samsung_drm_encoder_get_crtc(struct drm_encoder *encoder) +{ + return encoder->crtc; +} + +static struct drm_encoder_helper_funcs samsung_encoder_helper_funcs = { + .dpms = samsung_drm_encoder_dpms, + .mode_fixup = samsung_drm_encoder_mode_fixup, + .mode_set = samsung_drm_encoder_mode_set, + .prepare = samsung_drm_encoder_prepare, + .commit = samsung_drm_encoder_commit, + .get_crtc = samsung_drm_encoder_get_crtc, +}; + +static void samsung_drm_encoder_destroy(struct drm_encoder *encoder) +{ + struct samsung_drm_encoder *samsung_encoder = + to_samsung_encoder(encoder); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_encoder->manager->pipe = -1; + + drm_encoder_cleanup(encoder); + encoder->dev->mode_config.num_encoder--; + kfree(samsung_encoder); +} + +static struct drm_encoder_funcs samsung_encoder_funcs = { + .destroy = samsung_drm_encoder_destroy, +}; + +struct drm_encoder * +samsung_drm_encoder_create(struct drm_device *dev, + struct samsung_drm_manager *manager, + unsigned int possible_crtcs) +{ + struct drm_encoder *encoder; + struct samsung_drm_encoder *samsung_encoder; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (!manager || !possible_crtcs) + return NULL; + + if (!manager->dev) + return NULL; + + samsung_encoder = kzalloc(sizeof(*samsung_encoder), GFP_KERNEL); + if (!samsung_encoder) { + DRM_ERROR("failed to allocate encoder\n"); + return NULL; + } + + samsung_encoder->manager = manager; + encoder = &samsung_encoder->drm_encoder; + encoder->possible_crtcs = possible_crtcs; + + DRM_DEBUG_KMS("possible_crtcs = 0x%x\n", encoder->possible_crtcs); + + drm_encoder_init(dev, encoder, &samsung_encoder_funcs, + DRM_MODE_ENCODER_TMDS); + + drm_encoder_helper_add(encoder, &samsung_encoder_helper_funcs); + + DRM_DEBUG_KMS("encoder has been created\n"); + + return encoder; +} + +struct samsung_drm_manager *samsung_drm_get_manager(struct drm_encoder *encoder) +{ + return to_samsung_encoder(encoder)->manager; +} + +void samsung_drm_fn_encoder(struct drm_crtc *crtc, void *data, + void (*fn)(struct drm_encoder *, void *)) +{ + struct drm_device *dev = crtc->dev; + struct drm_encoder *encoder; + + list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) { + if (encoder->crtc != crtc) + continue; + + fn(encoder, data); + } +} + +void samsung_drm_enable_vblank(struct drm_encoder *encoder, void *data) +{ + struct samsung_drm_manager *manager = + to_samsung_encoder(encoder)->manager; + struct samsung_drm_manager_ops *manager_ops = manager->ops; + int crtc = *(int *)data; + + if (manager->pipe == -1) + manager->pipe = crtc; + + /* old_crtc checking needs? FIXME!!! */ + + if (manager_ops->enable_vblank) + manager_ops->enable_vblank(manager->dev); +} + +void samsung_drm_disable_vblank(struct drm_encoder *encoder, void *data) +{ + struct samsung_drm_manager *manager = + to_samsung_encoder(encoder)->manager; + struct samsung_drm_manager_ops *manager_ops = manager->ops; + int crtc = *(int *)data; + + if (manager->pipe == -1) + manager->pipe = crtc; + + /* old_crtc checking needs? FIXME!!! */ + + if (manager_ops->disable_vblank) + manager_ops->disable_vblank(manager->dev); +} + +void samsung_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data) +{ + struct samsung_drm_manager *manager = + to_samsung_encoder(encoder)->manager; + struct samsung_drm_overlay_ops *overlay_ops = manager->overlay_ops; + + overlay_ops->commit(manager->dev); +} + +void samsung_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data) +{ + struct samsung_drm_manager *manager = + to_samsung_encoder(encoder)->manager; + struct samsung_drm_overlay_ops *overlay_ops = manager->overlay_ops; + struct samsung_drm_overlay *overlay = data; + + overlay_ops->mode_set(manager->dev, overlay); +} + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM Encoder Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_encoder.h b/drivers/gpu/drm/samsung/samsung_drm_encoder.h new file mode 100644 index 0000000..99040b2 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_encoder.h @@ -0,0 +1,45 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_ENCODER_H_ +#define _SAMSUNG_DRM_ENCODER_H_ + +struct samsung_drm_manager; + +struct drm_encoder *samsung_drm_encoder_create(struct drm_device *dev, + struct samsung_drm_manager *mgr, + unsigned int possible_crtcs); +struct samsung_drm_manager * +samsung_drm_get_manager(struct drm_encoder *encoder); +void samsung_drm_fn_encoder(struct drm_crtc *crtc, void *data, + void (*fn)(struct drm_encoder *, void *)); +void samsung_drm_enable_vblank(struct drm_encoder *encoder, void *data); +void samsung_drm_disable_vblank(struct drm_encoder *encoder, void *data); +void samsung_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data); +void samsung_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_fb.c b/drivers/gpu/drm/samsung/samsung_drm_fb.c new file mode 100644 index 0000000..f087ecf --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_fb.c @@ -0,0 +1,262 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm_crtc.h" +#include "drm_crtc_helper.h" + +#include "samsung_drm_fb.h" +#include "samsung_drm_buf.h" +#include "samsung_drm_gem.h" + +#define to_samsung_fb(x) container_of(x, struct samsung_drm_fb, fb) + +struct samsung_drm_fb { + struct drm_framebuffer fb; + struct samsung_drm_gem_obj *samsung_gem_obj; + + unsigned int fb_size; + dma_addr_t paddr; + void __iomem *vaddr; +}; + +static void samsung_drm_fb_destroy(struct drm_framebuffer *fb) +{ + struct samsung_drm_fb *samsung_fb = to_samsung_fb(fb); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + drm_framebuffer_cleanup(fb); + + /* default framebuffer has no gem object so it releases buffer. */ + if (!samsung_fb->samsung_gem_obj) + samsung_drm_buf_destroy(fb->dev, + samsung_fb->samsung_gem_obj->entry); + + kfree(samsung_fb); +} + +static int samsung_drm_fb_create_handle(struct drm_framebuffer *fb, + struct drm_file *file_priv, + unsigned int *handle) +{ + struct samsung_drm_fb *samsung_fb = to_samsung_fb(fb); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + return drm_gem_handle_create(file_priv, + &samsung_fb->samsung_gem_obj->base, + handle); +} + +static int samsung_drm_fb_dirty(struct drm_framebuffer *fb, + struct drm_file *file_priv, unsigned flags, + unsigned color, struct drm_clip_rect *clips, + unsigned num_clips) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + /* + * update framebuffer and its hardware. + * - this callback would be called by user application + * with DRM_IOCTL_MODE_DIRTYFB command. + * + * ps. Userspace can notify the driver via this callback + * that an area of the framebuffer has been changed then should + * be flushed to the display hardware. + */ + + return 0; +} + +static struct drm_framebuffer_funcs samsung_drm_fb_funcs = { + .destroy = samsung_drm_fb_destroy, + .create_handle = samsung_drm_fb_create_handle, + .dirty = samsung_drm_fb_dirty, +}; + +static struct drm_framebuffer * +samsung_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev, + struct drm_mode_fb_cmd *mode_cmd) +{ + struct samsung_drm_fb *samsung_fb; + struct drm_framebuffer *fb; + struct samsung_drm_gem_obj *samsung_gem_obj = NULL; + struct drm_gem_object *obj; + unsigned int size; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + mode_cmd->pitch = max(mode_cmd->pitch, + mode_cmd->width * (mode_cmd->bpp >> 3)); + + DRM_LOG_KMS("drm fb create(%dx%d)\n", + mode_cmd->width, mode_cmd->height); + + samsung_fb = kzalloc(sizeof(*samsung_fb), GFP_KERNEL); + if (!samsung_fb) { + DRM_ERROR("failed to allocate samsung drm framebuffer.\n"); + return ERR_PTR(-ENOMEM); + } + + fb = &samsung_fb->fb; + ret = drm_framebuffer_init(dev, fb, &samsung_drm_fb_funcs); + if (ret) { + DRM_ERROR("failed to initialize framebuffer.\n"); + goto err_init; + } + + DRM_LOG_KMS("create: fb id: %d\n", fb->base.id); + + size = mode_cmd->pitch * mode_cmd->height; + + /* + * mode_cmd->handle could be pointer to a buffer allocated by user + * application using KMS library. + */ + if (!mode_cmd->handle) { + /* + * in case that file_priv is NULL, it allocates only buffer and + * this buffer would be used for default framebuffer. + */ + if (!file_priv) { + struct samsung_drm_buf_entry *entry; + + entry = samsung_drm_buf_create(dev, size); + if (IS_ERR(entry)) { + ret = PTR_ERR(entry); + goto err_buf_create; + } + + samsung_fb->vaddr = entry->vaddr; + samsung_fb->paddr = entry->paddr; + + DRM_LOG_KMS("default fb: paddr = 0x%x, size = 0x%x\n", + entry->paddr, size); + + goto out; + } else { + samsung_gem_obj = samsung_drm_gem_create(file_priv, dev, + size, + &mode_cmd->handle); + if (IS_ERR(samsung_gem_obj)) { + ret = PTR_ERR(samsung_gem_obj); + goto err_gem_create; + } + } + } else { + obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + goto err_lookup; + } + + samsung_gem_obj = to_samsung_gem_obj(obj); + + drm_gem_object_unreference_unlocked(obj); + } + + /* + * in case of getting samsung_gem_obj from either handle or + * new creation. + */ + samsung_fb->vaddr = samsung_gem_obj->entry->vaddr; + samsung_fb->paddr = samsung_gem_obj->entry->paddr; + + DRM_LOG_KMS("paddr = 0x%x, size = 0x%x, gem object = 0x%x\n", + samsung_fb->paddr, size, (u32)&samsung_gem_obj->base); + +out: + samsung_fb->samsung_gem_obj = samsung_gem_obj; + samsung_fb->fb_size = size; + + drm_helper_mode_fill_fb_struct(fb, mode_cmd); + + return fb; + +err_lookup: +err_gem_create: +err_buf_create: + drm_framebuffer_cleanup(fb); + +err_init: + kfree(samsung_fb); + + return ERR_PTR(ret); +} + +struct drm_framebuffer *samsung_drm_fb_create(struct drm_device *dev, + struct drm_file *file_priv, + struct drm_mode_fb_cmd *mode_cmd) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + return samsung_drm_fb_init(file_priv, dev, mode_cmd); +} + +void samsung_drm_fb_update_buf_off(struct drm_framebuffer *fb, + unsigned int x, unsigned int y, + struct samsung_drm_buffer_info *info) +{ + struct samsung_drm_fb *samsung_fb = to_samsung_fb(fb); + unsigned long offset; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + offset = x * (fb->bits_per_pixel >> 3); + offset += y * fb->pitch; + + info->base_addr = samsung_fb->paddr; + info->vaddr = samsung_fb->vaddr + offset; + info->paddr = samsung_fb->paddr + offset; + + DRM_DEBUG_KMS("updated vaddr = 0x%x, paddr = 0x%x, offset = 0x%x\n", + (unsigned int)info->vaddr, + (unsigned int)info->paddr, + (unsigned int)offset); +} + +static struct drm_mode_config_funcs samsung_drm_mode_config_funcs = { + .fb_create = samsung_drm_fb_create, +}; + +void samsung_drm_mode_config_init(struct drm_device *dev) +{ + dev->mode_config.min_width = 0; + dev->mode_config.min_height = 0; + + /* + * It sets max width and height as default value(4096x4096). + * this value would be used to check for framebuffer size limitation + * at drm_mode_addfb(). + */ + dev->mode_config.max_width = 4096; + dev->mode_config.max_height = 4096; + + dev->mode_config.funcs = &samsung_drm_mode_config_funcs; +} diff --git a/drivers/gpu/drm/samsung/samsung_drm_fb.h b/drivers/gpu/drm/samsung/samsung_drm_fb.h new file mode 100644 index 0000000..6256089 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_fb.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_FB_H_ +#define _SAMSUNG_DRM_FB_H + +struct samsung_drm_buffer_info { + unsigned long base_addr; + dma_addr_t paddr; + void __iomem *vaddr; +}; + +void samsung_drm_fb_update_buf_off(struct drm_framebuffer *fb, + unsigned int x, unsigned int y, + struct samsung_drm_buffer_info *info); + +struct drm_framebuffer *samsung_drm_fb_create(struct drm_device *dev, + struct drm_file *filp, + struct drm_mode_fb_cmd *mode_cmd); + +void samsung_drm_mode_config_init(struct drm_device *dev); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_fbdev.c b/drivers/gpu/drm/samsung/samsung_drm_fbdev.c new file mode 100644 index 0000000..1c46bc6 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_fbdev.c @@ -0,0 +1,409 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm_crtc.h" +#include "drm_fb_helper.h" +#include "drm_crtc_helper.h" + +#include "samsung_drm_drv.h" +#include "samsung_drm_fb.h" + +#define to_samsung_fbdev(x) container_of(x, struct samsung_drm_fbdev,\ + drm_fb_helper) + +struct samsung_drm_fbdev { + struct drm_fb_helper drm_fb_helper; + struct drm_framebuffer *fb; +}; + +static inline unsigned int chan_to_field(unsigned int chan, + struct fb_bitfield *bf) +{ + chan &= 0xffff; + chan >>= 16 - bf->length; + + return chan << bf->offset; +} + +static int samsung_drm_fbdev_setcolreg(unsigned regno, unsigned red, + unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + unsigned int val; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + switch (info->fix.visual) { + case FB_VISUAL_TRUECOLOR: + if (regno < 16) { + u32 *pal = info->pseudo_palette; + + val = chan_to_field(red, &info->var.red); + val |= chan_to_field(green, &info->var.green); + val |= chan_to_field(blue, &info->var.blue); + + pal[regno] = val; + } + break; + default: + return 1; + } + + return 0; +} + +static struct fb_ops samsung_drm_fb_ops = { + .owner = THIS_MODULE, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_check_var = drm_fb_helper_check_var, + .fb_set_par = drm_fb_helper_set_par, + .fb_setcolreg = samsung_drm_fbdev_setcolreg, + .fb_blank = drm_fb_helper_blank, + .fb_pan_display = drm_fb_helper_pan_display, + .fb_setcmap = drm_fb_helper_setcmap, +}; + +static void samsung_drm_fbdev_update(struct drm_fb_helper *helper, + struct drm_framebuffer *fb, + unsigned int fb_width, + unsigned int fb_height) +{ + struct fb_info *fbi = helper->fbdev; + struct drm_device *dev = helper->dev; + struct samsung_drm_fbdev *samsung_fb = to_samsung_fbdev(helper); + struct samsung_drm_buffer_info buffer_info; + unsigned int size = fb_width * fb_height * (fb->bits_per_pixel >> 3); + + DRM_DEBUG_KMS("%s\n", __FILE__); + + samsung_fb->fb = fb; + + drm_fb_helper_fill_fix(fbi, fb->pitch, fb->depth); + drm_fb_helper_fill_var(fbi, helper, fb_width, fb_height); + + samsung_drm_fb_update_buf_off(fb, fbi->var.xoffset, fbi->var.yoffset, + &buffer_info); + + dev->mode_config.fb_base = buffer_info.base_addr; + + fbi->screen_base = buffer_info.vaddr; + fbi->screen_size = size; + fbi->fix.smem_start = buffer_info.paddr; + fbi->fix.smem_len = size; +} + +static int samsung_drm_fbdev_create(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) +{ + struct samsung_drm_fbdev *samsung_fbdev = to_samsung_fbdev(helper); + struct drm_device *dev = helper->dev; + struct fb_info *fbi; + struct drm_mode_fb_cmd mode_cmd = { 0 }; + struct platform_device *pdev = dev->platformdev; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + DRM_DEBUG_KMS("surface width(%d), height(%d) and bpp(%d\n", + sizes->surface_width, sizes->surface_height, + sizes->surface_bpp); + + mode_cmd.width = sizes->surface_width; + mode_cmd.height = sizes->surface_height; + mode_cmd.bpp = sizes->surface_bpp; + mode_cmd.depth = sizes->surface_depth; + + mutex_lock(&dev->struct_mutex); + + fbi = framebuffer_alloc(0, &pdev->dev); + if (!fbi) { + DRM_ERROR("failed to allocate fb info.\n"); + ret = -ENOMEM; + goto out; + } + + samsung_fbdev->fb = samsung_drm_fb_create(dev, NULL, &mode_cmd); + if (IS_ERR(samsung_fbdev->fb)) { + DRM_ERROR("failed to create drm dramebuffer.\n"); + ret = PTR_ERR(samsung_fbdev->fb); + goto out; + } + + helper->fb = samsung_fbdev->fb; + helper->fbdev = fbi; + + fbi->par = helper; + fbi->flags = FBINFO_FLAG_DEFAULT; + fbi->fbops = &samsung_drm_fb_ops; + + ret = fb_alloc_cmap(&fbi->cmap, 256, 0); + if (ret) { + DRM_ERROR("failed to allocate cmap.\n"); + goto out; + } + + samsung_drm_fbdev_update(helper, helper->fb, sizes->fb_width, + sizes->fb_height); + +out: + mutex_unlock(&dev->struct_mutex); + return ret; +} + +static bool +samsung_drm_fbdev_is_samefb(struct drm_framebuffer *fb, + struct drm_fb_helper_surface_size *sizes) +{ + if (fb->width != sizes->surface_width) + return false; + if (fb->height != sizes->surface_height) + return false; + if (fb->bits_per_pixel != sizes->surface_bpp) + return false; + if (fb->depth != sizes->surface_depth) + return false; + + return true; +} + +static int samsung_drm_fbdev_recreate(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) +{ + struct drm_device *dev = helper->dev; + struct samsung_drm_fbdev *samsung_fbdev = to_samsung_fbdev(helper); + struct drm_framebuffer *fb = samsung_fbdev->fb; + struct drm_mode_fb_cmd mode_cmd = { 0 }; + + if (helper->fb != fb) { + DRM_ERROR("drm framebuffer is different\n"); + return -EINVAL; + } + + if (samsung_drm_fbdev_is_samefb(fb, sizes)) + return 0; + + mode_cmd.width = sizes->surface_width; + mode_cmd.height = sizes->surface_height; + mode_cmd.bpp = sizes->surface_bpp; + mode_cmd.depth = sizes->surface_depth; + + if (fb->funcs->destroy) + fb->funcs->destroy(fb); + + samsung_fbdev->fb = samsung_drm_fb_create(dev, NULL, &mode_cmd); + if (IS_ERR(samsung_fbdev->fb)) { + DRM_ERROR("failed to allocate fb.\n"); + return PTR_ERR(samsung_fbdev->fb); + } + + helper->fb = samsung_fbdev->fb; + samsung_drm_fbdev_update(helper, helper->fb, sizes->fb_width, + sizes->fb_height); + + return 0; +} + +static int samsung_drm_fbdev_probe(struct drm_fb_helper *helper, + struct drm_fb_helper_surface_size *sizes) +{ + int ret = 0; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (!helper->fb) { + ret = samsung_drm_fbdev_create(helper, sizes); + if (ret < 0) { + DRM_ERROR("failed to create fbdev.\n"); + return ret; + } + + /* + * fb_helper expects a value more than 1 if succeed + * because register_framebuffer() should be called. + */ + ret = 1; + } else { + ret = samsung_drm_fbdev_recreate(helper, sizes); + if (ret < 0) { + DRM_ERROR("failed to reconfigure fbdev\n"); + return ret; + } + } + + return ret; +} + +static struct drm_fb_helper_funcs samsung_drm_fb_helper_funcs = { + .fb_probe = samsung_drm_fbdev_probe, +}; + +int samsung_drm_fbdev_init(struct drm_device *dev) +{ + struct samsung_drm_fbdev *fbdev; + struct samsung_drm_private *private = dev->dev_private; + struct drm_fb_helper *helper; + unsigned int num_crtc; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (!dev->mode_config.num_crtc || !dev->mode_config.num_connector) + return 0; + + fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL); + if (!fbdev) { + DRM_ERROR("failed to allocate drm fbdev.\n"); + return -ENOMEM; + } + + private->fb_helper = helper = &fbdev->drm_fb_helper; + helper->funcs = &samsung_drm_fb_helper_funcs; + + num_crtc = dev->mode_config.num_crtc; + + ret = drm_fb_helper_init(dev, helper, num_crtc, 4); + if (ret < 0) { + DRM_ERROR("failed to initialize drm fb helper.\n"); + goto fail; + } + + ret = drm_fb_helper_single_add_all_connectors(helper); + if (ret < 0) { + DRM_ERROR("failed to register drm_fb_helper_connector.\n"); + goto fail; + + } + + ret = drm_fb_helper_initial_config(helper, 32); + if (ret < 0) { + DRM_ERROR("failed to set up hw configuration.\n"); + goto fail; + } + + return 0; + +fail: + private->fb_helper = NULL; + kfree(fbdev); + + return ret; +} + +static void samsung_drm_fbdev_destroy(struct drm_device *dev, + struct drm_fb_helper *fb_helper) +{ + struct drm_framebuffer *fb; + struct fb_info *info; + + /* release drm framebuffer and real buffer */ + if (fb_helper->fb && fb_helper->fb->funcs) { + fb = fb_helper->fb; + if (fb->funcs->destroy) + fb->funcs->destroy(fb); + } + + /* release linux framebuffer */ + if (fb_helper->fbdev) { + info = fb_helper->fbdev; + unregister_framebuffer(info); + if (info->cmap.len) + fb_dealloc_cmap(&info->cmap); + framebuffer_release(info); + } + + drm_fb_helper_fini(fb_helper); +} + +void samsung_drm_fbdev_fini(struct drm_device *dev) +{ + struct samsung_drm_private *private = dev->dev_private; + struct samsung_drm_fbdev *fbdev; + + if (!private || !private->fb_helper) + return; + + fbdev = to_samsung_fbdev(private->fb_helper); + + samsung_drm_fbdev_destroy(dev, private->fb_helper); + kfree(fbdev); + private->fb_helper = NULL; +} + +void samsung_drm_fbdev_restore_mode(struct drm_device *dev) +{ + struct samsung_drm_private *private = dev->dev_private; + + if (!private || !private->fb_helper) + return; + + drm_fb_helper_restore_fbdev_mode(private->fb_helper); +} + +int samsung_drm_fbdev_reinit(struct drm_device *dev) +{ + struct samsung_drm_private *private = dev->dev_private; + int ret; + + if (!private) + return -EINVAL; + + if (!dev->mode_config.num_connector) { + samsung_drm_fbdev_fini(dev); + return 0; + } + + if (private->fb_helper) { + struct drm_fb_helper *fb_helper = private->fb_helper; + + drm_fb_helper_fini(fb_helper); + + ret = drm_fb_helper_init(dev, fb_helper, + dev->mode_config.num_crtc, 4); + if (ret < 0) { + DRM_ERROR("failed to initialize drm fb helper\n"); + return ret; + } + + ret = drm_fb_helper_single_add_all_connectors(fb_helper); + if (ret < 0) { + DRM_ERROR("failed to add fb helper to connectors\n"); + return ret; + } + + ret = drm_fb_helper_initial_config(fb_helper, 32); + if (ret < 0) { + DRM_ERROR("failed to set up hw configuration.\n"); + return ret; + } + } else + ret = samsung_drm_fbdev_init(dev); + + return ret; +} diff --git a/drivers/gpu/drm/samsung/samsung_drm_fbdev.h b/drivers/gpu/drm/samsung/samsung_drm_fbdev.h new file mode 100644 index 0000000..3ef4e0d --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_fbdev.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * SeungWoo Kim <sw0312.kim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_FBDEV_H_ +#define _SAMSUNG_DRM_FBDEV_H_ + +int samsung_drm_fbdev_init(struct drm_device *dev); +int samsung_drm_fbdev_reinit(struct drm_device *dev); +void samsung_drm_fbdev_fini(struct drm_device *dev); +void samsung_drm_fbdev_restore_mode(struct drm_device *dev); + +#endif diff --git a/drivers/gpu/drm/samsung/samsung_drm_fimd.c b/drivers/gpu/drm/samsung/samsung_drm_fimd.c new file mode 100644 index 0000000..d823e19 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_fimd.c @@ -0,0 +1,643 @@ +/* + * Copyright (C) 2011 Samsung Electronics Co.Ltd + * Authors: + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * Inki Dae <inki.dae(a)samsung.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +/* + * TODO list + * - Code cleanup(FIXME and TODO parts) + * - Clock gating and Power management + * - Writeback feature + */ + +#include "drmP.h" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/clk.h> + +#include <drm/samsung_drm.h> +#include <plat/regs-fb-v4.h> + +#include "samsung_drm_drv.h" +#include "samsung_drm_fbdev.h" +#include "samsung_drm_crtc.h" + +/* irq_flags bits */ +#define FIMD_VSYNC_IRQ_EN 0 + +#define VIDOSD_A(win) (VIDOSD_BASE + 0x00 + (win) * 16) +#define VIDOSD_B(win) (VIDOSD_BASE + 0x04 + (win) * 16) +#define VIDOSD_C(win) (VIDOSD_BASE + 0x08 + (win) * 16) +#define VIDOSD_D(win) (VIDOSD_BASE + 0x0C + (win) * 16) + +#define VIDWx_BUF_START(win, buf) (VIDW_BUF_START(buf) + (win) * 8) +#define VIDWx_BUF_END(win, buf) (VIDW_BUF_END(buf) + (win) * 8) +#define VIDWx_BUF_SIZE(win, buf) (VIDW_BUF_SIZE(buf) + (win) * 4) + +#define WINDOWS_NR 5 + +#define get_fimd_context(dev) platform_get_drvdata(to_platform_device(dev)) + +struct fimd_win_data { + unsigned int offset_x; + unsigned int offset_y; + unsigned int width; + unsigned int height; + unsigned int paddr; + void __iomem *vaddr; + unsigned int end_buf_off; + unsigned int buf_offsize; + unsigned int line_size; /* bytes */ +}; + +struct fimd_context { + struct samsung_drm_subdrv subdrv; + int irq_no; + struct drm_crtc *crtc; + struct clk *bus_clk; + struct clk *lcd_clk; + struct resource *regs_res; + void __iomem *regs; + struct fimd_win_data win_data[WINDOWS_NR]; + unsigned int clkdiv; + unsigned int default_win; + unsigned int bpp; + unsigned long irq_flags; + u32 vidcon0; + u32 vidcon1; + + struct fb_videomode *timing; +}; + +static bool fimd_display_is_connected(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + + /* TODO. */ + + return true; +} + +static void *fimd_get_timing(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + + return ctx->timing; +} + +static int fimd_check_timing(struct device *dev, void *timing) +{ + struct fimd_context *ctx = get_fimd_context(dev); + + /* TODO. */ + + return 0; +} + +static int fimd_display_power_on(struct device *dev, int mode) +{ + struct fimd_context *ctx = get_fimd_context(dev); + + /* TODO. */ + + return 0; +} + +static struct samsung_drm_display fimd_display = { + .type = SAMSUNG_DISPLAY_TYPE_LCD, + .is_connected = fimd_display_is_connected, + .get_timing = fimd_get_timing, + .check_timing = fimd_check_timing, + .power_on = fimd_display_power_on, +}; + +static void fimd_commit(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + void __iomem *regs = ctx->regs; + struct fb_videomode *timing = ctx->timing; + u32 val; + + /* vidcon0 */ + val = ctx->vidcon0; + val &= ~(VIDCON0_CLKVAL_F_MASK | VIDCON0_CLKDIR); + + if (ctx->clkdiv > 1) + val |= VIDCON0_CLKVAL_F(ctx->clkdiv - 1) | VIDCON0_CLKDIR; + else + val &= ~VIDCON0_CLKDIR; /* 1:1 clock */ + + val |= VIDCON0_ENVID | VIDCON0_ENVID_F; + writel(val, regs + VIDCON0); + + /* vidcon1 */ + writel(ctx->vidcon1, regs + VIDCON1); + + /* vidtcon0 */ + val = VIDTCON0_VBPD(timing->upper_margin - 1) | + VIDTCON0_VFPD(timing->lower_margin - 1) | + VIDTCON0_VSPW(timing->vsync_len - 1); + writel(val, regs + VIDTCON0); + + /* vidtcon1 */ + val = VIDTCON1_HBPD(timing->left_margin - 1) | + VIDTCON1_HFPD(timing->right_margin - 1) | + VIDTCON1_HSPW(timing->hsync_len - 1); + writel(val, regs + VIDTCON1); + + /* vidtcon2 */ + val = VIDTCON2_LINEVAL(timing->yres - 1) | + VIDTCON2_HOZVAL(timing->xres - 1); + writel(val, regs + VIDTCON2); +} + +static int fimd_enable_vblank(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + void __iomem *regs = ctx->regs; + u32 val; + + if (!test_and_set_bit(FIMD_VSYNC_IRQ_EN, &ctx->irq_flags)) { + val = readl(regs + VIDINTCON0); + + val |= VIDINTCON0_INT_ENABLE; + val |= VIDINTCON0_INT_FRAME; + + val &= ~VIDINTCON0_FRAMESEL0_MASK; + val |= VIDINTCON0_FRAMESEL0_VSYNC; + val &= ~VIDINTCON0_FRAMESEL1_MASK; + val |= VIDINTCON0_FRAMESEL1_NONE; + + writel(val, regs + VIDINTCON0); + } + + return 0; +} + +static void fimd_disable_vblank(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + void __iomem *regs = ctx->regs; + u32 val; + + if (test_and_clear_bit(FIMD_VSYNC_IRQ_EN, &ctx->irq_flags)) { + val = readl(regs + VIDINTCON0); + + val &= ~VIDINTCON0_INT_FRAME; + val &= ~VIDINTCON0_INT_ENABLE; + + writel(val, regs + VIDINTCON0); + } +} + +static struct samsung_drm_manager_ops fimd_manager_ops = { + .commit = fimd_commit, + .enable_vblank = fimd_enable_vblank, + .disable_vblank = fimd_disable_vblank, +}; + +static void fimd_win_mode_set(struct device *dev, + struct samsung_drm_overlay *overlay) +{ + struct fimd_context *ctx = get_fimd_context(dev); + struct fimd_win_data *win_data; + + if (!overlay) { + dev_err(dev, "overlay is NULL\n"); + return; + } + + win_data = &ctx->win_data[ctx->default_win]; + + win_data->offset_x = overlay->offset_x; + win_data->offset_y = overlay->offset_y; + win_data->width = overlay->width; + win_data->height = overlay->height; + win_data->paddr = overlay->paddr; + win_data->vaddr = overlay->vaddr; + win_data->end_buf_off = overlay->end_buf_off * (ctx->bpp >> 3); + win_data->buf_offsize = overlay->buf_offsize * (ctx->bpp >> 3); + win_data->line_size = overlay->line_size * (ctx->bpp >> 3); +} + +static void fimd_win_commit(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + void __iomem *regs = ctx->regs; + struct fimd_win_data *win_data; + int win = ctx->default_win; + u32 val; + + if (win < 0 || win > WINDOWS_NR) + return; + + win_data = &ctx->win_data[win]; + + /* protect windows */ + val = readl(regs + SHADOWCON); + val |= SHADOWCON_WINx_PROTECT(win); + writel(val, regs + SHADOWCON); + + /* buffer start address */ + val = win_data->paddr; + writel(val, regs + VIDWx_BUF_START(win, 0)); + + /* buffer end address */ + val = win_data->paddr + win_data->end_buf_off; + writel(val, regs + VIDWx_BUF_END(win, 0)); + + /* buffer size */ + val = VIDW_BUF_SIZE_OFFSET(win_data->buf_offsize) | + VIDW_BUF_SIZE_PAGEWIDTH(win_data->line_size); + writel(val, regs + VIDWx_BUF_SIZE(win, 0)); + + /* OSD position */ + val = VIDOSDxA_TOPLEFT_X(win_data->offset_x) | + VIDOSDxA_TOPLEFT_Y(win_data->offset_y); + writel(val, regs + VIDOSD_A(win)); + + val = VIDOSDxB_BOTRIGHT_X(win_data->offset_x + win_data->width - 1) | + VIDOSDxB_BOTRIGHT_Y(win_data->offset_y + win_data->height - 1); + writel(val, regs + VIDOSD_B(win)); + + /* TODO: OSD alpha */ + + /* OSD size */ + if (win != 3 && win != 4) { + u32 offset = VIDOSD_D(win); + if (win == 0) + offset = VIDOSD_C(win); + val = win_data->width * win_data->height; + writel(val, regs + offset); + } + + /* FIXME: remove fixed values */ + val = WINCONx_ENWIN; + val |= WINCON0_BPPMODE_24BPP_888; + val |= WINCONx_WSWP; + val |= WINCONx_BURSTLEN_16WORD; + writel(val, regs + WINCON(win)); + + /* TODO: colour key */ + + /* Enable DMA channel and unprotect windows */ + val = readl(regs + SHADOWCON); + val |= SHADOWCON_CHx_ENABLE(win); + val &= ~SHADOWCON_WINx_PROTECT(win); + writel(val, regs + SHADOWCON); +} + +static void fimd_win_disable(struct device *dev) +{ + struct fimd_context *ctx = get_fimd_context(dev); + void __iomem *regs = ctx->regs; + struct fimd_win_data *win_data; + int win = ctx->default_win; + u32 val; + + if (win < 0 || win > WINDOWS_NR) + return; + + win_data = &ctx->win_data[win]; + + /* protect windows */ + val = readl(regs + SHADOWCON); + val |= SHADOWCON_WINx_PROTECT(win); + writel(val, regs + SHADOWCON); + + /* wincon */ + val = readl(regs + WINCON(win)); + val &= ~WINCONx_ENWIN; + writel(val, regs + WINCON(win)); + + /* unprotect windows */ + val = readl(regs + SHADOWCON); + val &= ~SHADOWCON_CHx_ENABLE(win); + val &= ~SHADOWCON_WINx_PROTECT(win); + writel(val, regs + SHADOWCON); +} + +static struct samsung_drm_overlay_ops fimd_overlay_ops = { + .mode_set = fimd_win_mode_set, + .commit = fimd_win_commit, + .disable = fimd_win_disable, +}; + +/* for pageflip event */ +static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc) +{ + struct samsung_drm_private *dev_priv = drm_dev->dev_private; + struct drm_pending_vblank_event *e, *t; + struct timeval now; + unsigned long flags; + + if (!dev_priv->pageflip_event) + return; + + spin_lock_irqsave(&drm_dev->event_lock, flags); + + list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list, + base.link) { + do_gettimeofday(&now); + e->event.sequence = 0; + e->event.tv_sec = now.tv_sec; + e->event.tv_usec = now.tv_usec; + + list_move_tail(&e->base.link, &e->base.file_priv->event_list); + wake_up_interruptible(&e->base.file_priv->event_wait); + } + + drm_vblank_put(drm_dev, crtc); + dev_priv->pageflip_event = false; + + spin_unlock_irqrestore(&drm_dev->event_lock, flags); +} + +static irqreturn_t fimd_irq_handler(int irq, void *dev_id) +{ + struct fimd_context *ctx = (struct fimd_context *)dev_id; + struct samsung_drm_subdrv *subdrv = &ctx->subdrv; + struct drm_device *drm_dev = subdrv->drm_dev; + struct device *dev = subdrv->manager.dev; + struct samsung_drm_manager *manager = &subdrv->manager; + void __iomem *regs = ctx->regs; + u32 val; + + val = readl(regs + VIDINTCON1); + + if (val & VIDINTCON1_INT_FRAME) + /* VSYNC interrupt */ + writel(VIDINTCON1_INT_FRAME, regs + VIDINTCON1); + + drm_handle_vblank(drm_dev, manager->pipe); + fimd_finish_pageflip(drm_dev, manager->pipe); + + return IRQ_HANDLED; +} + +static int fimd_subdrv_probe(struct drm_device *drm_dev) +{ + struct drm_driver *drm_driver = drm_dev->driver; + + drm_dev->irq_enabled = 1; + + /* TODO. */ + + /* FIXME */ + drm_dev->vblank_disable_allowed = 1; + + return 0; +} + +static void fimd_subdrv_remove(struct drm_device *drm_dev) +{ + struct drm_driver *drm_driver = drm_dev->driver; + + /* TODO. */ +} + +static int fimd_calc_clkdiv(struct fimd_context *ctx, + struct fb_videomode *timing) +{ + unsigned long clk = clk_get_rate(ctx->lcd_clk); + u32 retrace; + u32 clkdiv; + u32 best_framerate = 0; + u32 framerate; + + retrace = timing->left_margin + timing->hsync_len + + timing->right_margin + timing->xres; + retrace *= timing->upper_margin + timing->vsync_len + + timing->lower_margin + timing->yres; + + /* default framerate is 60Hz */ + if (!timing->refresh) + timing->refresh = 60; + + clk /= retrace; + + for (clkdiv = 1; clkdiv < 0x100; clkdiv++) { + int tmp; + + /* get best framerate */ + framerate = clk / clkdiv; + tmp = timing->refresh - framerate; + if (tmp < 0) { + best_framerate = framerate; + continue; + } else { + if (!best_framerate) + best_framerate = framerate; + else if (tmp < (best_framerate - framerate)) + best_framerate = framerate ; + break; + } + } + + return clkdiv; +} + +static void fimd_clear_win(struct fimd_context *ctx, int win) +{ + void __iomem *regs = ctx->regs; + u32 val; + + writel(0, regs + WINCON(win)); + writel(0, regs + VIDOSD_A(win)); + writel(0, regs + VIDOSD_B(win)); + writel(0, regs + VIDOSD_C(win)); + + if (win == 1 || win == 2) + writel(0, regs + VIDOSD_D(win)); + + val = readl(regs + SHADOWCON); + val &= ~SHADOWCON_WINx_PROTECT(win); + writel(val, regs + SHADOWCON); +} + +static int __devinit fimd_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct fimd_context *ctx; + struct samsung_drm_subdrv *subdrv; + struct samsung_drm_fimd_pdata *pdata; + struct fb_videomode *timing; + struct resource *res; + int win; + int ret = -EINVAL; + + printk(KERN_DEBUG "[%d] %s\n", __LINE__, __func__); + + pdata = pdev->dev.platform_data; + if (!pdata) { + dev_err(dev, "no platform data specified\n"); + return -EINVAL; + } + + timing = &pdata->timing; + if (!timing) { + dev_err(dev, "timing is null.\n"); + return -EINVAL; + } + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return -ENOMEM; + + ctx->bus_clk = clk_get(dev, "fimd"); + if (IS_ERR(ctx->bus_clk)) { + dev_err(dev, "failed to get bus clock\n"); + ret = PTR_ERR(ctx->bus_clk); + goto err_clk_get; + } + + clk_enable(ctx->bus_clk); + + ctx->lcd_clk = clk_get(dev, "sclk_fimd"); + if (IS_ERR(ctx->lcd_clk)) { + dev_err(dev, "failed to get lcd clock\n"); + ret = PTR_ERR(ctx->lcd_clk); + goto err_bus_clk; + } + + clk_enable(ctx->lcd_clk); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) { + dev_err(dev, "failed to find registers\n"); + ret = -ENOENT; + goto err_clk; + } + + ctx->regs_res = request_mem_region(res->start, resource_size(res), + dev_name(dev)); + if (!ctx->regs_res) { + dev_err(dev, "failed to claim register region\n"); + ret = -ENOENT; + goto err_clk; + } + + ctx->regs = ioremap(res->start, resource_size(res)); + if (!ctx->regs) { + dev_err(dev, "failed to map registers\n"); + ret = -ENXIO; + goto err_req_region_io; + } + + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!res) { + dev_err(dev, "irq request failed.\n"); + goto err_req_region_irq; + } + + ctx->irq_no = res->start; + + for (win = 0; win < WINDOWS_NR; win++) + fimd_clear_win(ctx, win); + + ret = request_irq(ctx->irq_no, fimd_irq_handler, 0, "drm_fimd", ctx); + if (ret < 0) { + dev_err(dev, "irq request failed.\n"); + goto err_req_irq; + } + + ctx->clkdiv = fimd_calc_clkdiv(ctx, timing); + ctx->vidcon0 = pdata->vidcon0; + ctx->vidcon1 = pdata->vidcon1; + ctx->default_win = pdata->default_win; + ctx->bpp = pdata->bpp; + ctx->timing = timing; + + timing->pixclock = clk_get_rate(ctx->lcd_clk) / ctx->clkdiv; + + subdrv = &ctx->subdrv; + + subdrv->probe = fimd_subdrv_probe; + subdrv->remove = fimd_subdrv_remove; + subdrv->manager.pipe = -1; + subdrv->manager.ops = &fimd_manager_ops; + subdrv->manager.overlay_ops = &fimd_overlay_ops; + subdrv->manager.display = &fimd_display; + subdrv->manager.dev = dev; + + platform_set_drvdata(pdev, ctx); + samsung_drm_subdrv_register(subdrv); + + return 0; + +err_req_irq: +err_req_region_irq: + iounmap(ctx->regs); + +err_req_region_io: + release_resource(ctx->regs_res); + kfree(ctx->regs_res); + +err_clk: + clk_disable(ctx->lcd_clk); + clk_put(ctx->lcd_clk); + +err_bus_clk: + clk_disable(ctx->bus_clk); + clk_put(ctx->bus_clk); + +err_clk_get: + kfree(ctx); + return ret; +} + +static int __devexit fimd_remove(struct platform_device *pdev) +{ + struct fimd_context *ctx = platform_get_drvdata(pdev); + + samsung_drm_subdrv_unregister(&ctx->subdrv); + + clk_disable(ctx->lcd_clk); + clk_disable(ctx->bus_clk); + clk_put(ctx->lcd_clk); + clk_put(ctx->bus_clk); + + iounmap(ctx->regs); + release_resource(ctx->regs_res); + kfree(ctx->regs_res); + + kfree(ctx); + + return 0; +} + +static struct platform_driver fimd_driver = { + .probe = fimd_probe, + .remove = __devexit_p(fimd_remove), + .driver = { + .name = "exynos4-fb", + .owner = THIS_MODULE, + }, +}; + +static int __init fimd_init(void) +{ + return platform_driver_register(&fimd_driver); +} + +static void __exit fimd_exit(void) +{ + platform_driver_unregister(&fimd_driver); +} + +module_init(fimd_init); +module_exit(fimd_exit); + +MODULE_AUTHOR("Joonyoung Shim <jy0922.shim(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung DRM FIMD Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_gem.c b/drivers/gpu/drm/samsung/samsung_drm_gem.c new file mode 100644 index 0000000..8f71ef0 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_gem.c @@ -0,0 +1,492 @@ +/* samsung_drm_gem.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Author: Inki Dae <inki.dae(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include "drmP.h" +#include "drm.h" + +#include <drm/samsung_drm.h> + +#include "samsung_drm_drv.h" +#include "samsung_drm_gem.h" +#include "samsung_drm_buf.h" + +static unsigned int convert_to_vm_err_msg(int msg) +{ + unsigned int out_msg; + + switch (msg) { + case 0: + case -ERESTARTSYS: + case -EINTR: + out_msg = VM_FAULT_NOPAGE; + break; + + case -ENOMEM: + out_msg = VM_FAULT_OOM; + break; + + default: + out_msg = VM_FAULT_SIGBUS; + break; + } + + return out_msg; +} + +static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT; +} + +/** + * samsung_drm_gem_create_mmap_offset - create a fake mmap offset for an object + * @obj: obj in question + * + * GEM memory mapping works by handing back to userspace a fake mmap offset + * it can use in a subsequent mmap(2) call. The DRM core code then looks + * up the object based on the offset and sets up the various memory mapping + * structures. + * + * This routine allocates and attaches a fake offset for @obj. + */ +static int +samsung_drm_gem_create_mmap_offset(struct drm_gem_object *obj) +{ + struct drm_device *dev = obj->dev; + struct drm_gem_mm *mm = dev->mm_private; + struct drm_map_list *list; + struct drm_local_map *map; + int ret = 0; + + /* Set the object up for mmap'ing */ + list = &obj->map_list; + list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL); + if (!list->map) + return -ENOMEM; + + map = list->map; + map->type = _DRM_GEM; + map->size = obj->size; + map->handle = obj; + + /* Get a DRM GEM mmap offset allocated... */ + list->file_offset_node = drm_mm_search_free(&mm->offset_manager, + obj->size / PAGE_SIZE, + 0, 0); + if (!list->file_offset_node) { + DRM_ERROR("failed to allocate offset for bo %d\n", + obj->name); + ret = -ENOSPC; + goto out_free_list; + } + + list->file_offset_node = drm_mm_get_block(list->file_offset_node, + obj->size / PAGE_SIZE, + 0); + if (!list->file_offset_node) { + ret = -ENOMEM; + goto out_free_list; + } + + list->hash.key = list->file_offset_node->start; + ret = drm_ht_insert_item(&mm->offset_hash, &list->hash); + if (ret) { + DRM_ERROR("failed to add to map hash\n"); + goto out_free_mm; + } + + return 0; + +out_free_mm: + drm_mm_put_block(list->file_offset_node); +out_free_list: + kfree(list->map); + list->map = NULL; + + return ret; +} + +static void +samsung_drm_gem_free_mmap_offset(struct drm_gem_object *obj) +{ + struct drm_device *dev = obj->dev; + struct drm_gem_mm *mm = dev->mm_private; + struct drm_map_list *list = &obj->map_list; + + drm_ht_remove_item(&mm->offset_hash, &list->hash); + drm_mm_put_block(list->file_offset_node); + kfree(list->map); + list->map = NULL; +} + +struct samsung_drm_gem_obj *samsung_drm_gem_create(struct drm_file *file_priv, + struct drm_device *dev, unsigned int size, + unsigned int *handle) +{ + struct samsung_drm_gem_obj *samsung_gem_obj; + struct samsung_drm_buf_entry *entry; + struct drm_gem_object *obj; + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + size = roundup(size, PAGE_SIZE); + + samsung_gem_obj = kzalloc(sizeof(*samsung_gem_obj), GFP_KERNEL); + if (!samsung_gem_obj) { + DRM_ERROR("failed to allocate samsung gem object.\n"); + return ERR_PTR(-ENOMEM); + } + + /* allocate the new buffer object and memory region. */ + entry = samsung_drm_buf_create(dev, size); + if (!entry) { + kfree(samsung_gem_obj); + return ERR_PTR(-ENOMEM); + } + + samsung_gem_obj->entry = entry; + + obj = &samsung_gem_obj->base; + + ret = drm_gem_object_init(dev, obj, size); + if (ret < 0) { + DRM_ERROR("failed to initailize gem object.\n"); + goto err_obj_init; + } + + DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp); + + ret = samsung_drm_gem_create_mmap_offset(obj); + if (ret < 0) { + DRM_ERROR("failed to allocate mmap offset.\n"); + goto err_create_mmap_offset; + } + + /** + * allocate a id of idr table where the obj is registered + * and handle has the id what user can see. + */ + ret = drm_gem_handle_create(file_priv, obj, handle); + if (ret) + goto err_handle_create; + + DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle); + + /* drop reference from allocate - handle holds it now. */ + drm_gem_object_unreference_unlocked(obj); + + return samsung_gem_obj; + +err_handle_create: + samsung_drm_gem_free_mmap_offset(obj); + drm_gem_object_release(obj); + +err_create_mmap_offset: + /* add exception. FIXME. */ + +err_obj_init: + samsung_drm_buf_destroy(dev, samsung_gem_obj->entry); + + kfree(samsung_gem_obj); + + return ERR_PTR(ret); +} + +int samsung_drm_gem_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_samsung_gem_create *args = data; + struct samsung_drm_gem_obj *samsung_gem_obj; + + DRM_DEBUG_KMS("%s : size = 0x%x\n", __FILE__, args->size); + + samsung_gem_obj = samsung_drm_gem_create(file_priv, dev, args->size, + &args->handle); + if (IS_ERR(samsung_gem_obj)) + return PTR_ERR(samsung_gem_obj); + + return 0; +} + +int samsung_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_samsung_gem_map_off *args = data; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + DRM_DEBUG_KMS("handle = 0x%x, offset = 0x%x\n", + args->handle, (u32)args->offset); + + if (!(dev->driver->driver_features & DRIVER_GEM)) { + DRM_ERROR("not support GEM.\n"); + return -ENODEV; + } + + return samsung_drm_gem_dumb_map_offset(file_priv, dev, args->handle, + &args->offset); +} + +static int samsung_drm_gem_mmap_buffer(struct file *filp, + struct vm_area_struct *vma) +{ + struct drm_gem_object *obj = filp->private_data; + struct samsung_drm_gem_obj *samsung_gem_obj = to_samsung_gem_obj(obj); + struct samsung_drm_buf_entry *entry; + unsigned long pfn, size; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + vma->vm_flags |= (VM_IO | VM_RESERVED); + vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); + vma->vm_file = filp; + + size = vma->vm_end - vma->vm_start; + entry = samsung_gem_obj->entry; + + /* check if the region to be mapped is valid or not. */ + if ((entry->paddr + vma->vm_pgoff + size) > + (entry->paddr + entry->size)) { + drm_gem_object_unreference_unlocked(obj); + DRM_ERROR("desired size is bigger then real size.\n"); + return -EINVAL; + } + + pfn = (samsung_gem_obj->entry->paddr + vma->vm_pgoff) >> PAGE_SHIFT; + + DRM_DEBUG_KMS("offset = 0x%x, pfn to be mapped = 0x%x\n", + (u32)vma->vm_pgoff, (u32)pfn); + + if (remap_pfn_range(vma, vma->vm_start, pfn, + vma->vm_end - vma->vm_start, + vma->vm_page_prot)) { + DRM_ERROR("failed to remap pfn range.\n"); + return -EAGAIN; + } + + return 0; +} + +static const struct file_operations samsung_drm_gem_fops = { + .mmap = samsung_drm_gem_mmap_buffer, +}; + +int samsung_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_samsung_gem_mmap *args = data; + struct drm_gem_object *obj; + unsigned int addr; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + if (!(dev->driver->driver_features & DRIVER_GEM)) { + DRM_ERROR("not support GEM.\n"); + return -ENODEV; + } + + obj = drm_gem_object_lookup(dev, file_priv, args->handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + return -EINVAL; + } + + obj->filp->f_op = &samsung_drm_gem_fops; + obj->filp->private_data = obj; + + down_write(&current->mm->mmap_sem); + addr = do_mmap(obj->filp, 0, args->size, + PROT_READ | PROT_WRITE, MAP_SHARED, args->offset); + up_write(&current->mm->mmap_sem); + + drm_gem_object_unreference_unlocked(obj); + + if (IS_ERR((void *)addr)) + return PTR_ERR((void *)addr); + + args->mapped = addr; + + DRM_DEBUG_KMS("mapped = 0x%x\n", (u32)args->mapped); + + return 0; +} + +int samsung_drm_gem_init_object(struct drm_gem_object *obj) +{ + DRM_DEBUG_KMS("%s\n", __FILE__); + + return 0; +} + +void samsung_drm_gem_free_object(struct drm_gem_object *gem_obj) +{ + struct samsung_drm_gem_obj *samsung_gem_obj; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + DRM_DEBUG_KMS("handle count = %d\n", + atomic_read(&gem_obj->handle_count)); + + if (gem_obj->map_list.map) + samsung_drm_gem_free_mmap_offset(gem_obj); + + /* release file pointer to gem object. */ + drm_gem_object_release(gem_obj); + + samsung_gem_obj = to_samsung_gem_obj(gem_obj); + + samsung_drm_buf_destroy(gem_obj->dev, samsung_gem_obj->entry); +} + +int samsung_drm_gem_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, struct drm_mode_create_dumb *args) +{ + struct samsung_drm_gem_obj *samsung_gem_obj; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + /** + * alocate memory to be used for framebuffer. + * - this callback would be called by user application + * with DRM_IOCTL_MODE_CREATE_DUMB command. + */ + + args->pitch = args->width * args->bpp >> 3; + args->size = args->pitch * args->height; + + samsung_gem_obj = samsung_drm_gem_create(file_priv, dev, args->size, + &args->handle); + if (IS_ERR(samsung_gem_obj)) + return PTR_ERR(samsung_gem_obj); + + return 0; +} + +int samsung_drm_gem_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, uint64_t *offset) +{ + struct samsung_drm_gem_obj *samsung_gem_obj; + struct drm_gem_object *obj; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + mutex_lock(&dev->struct_mutex); + + /** + * get offset of memory allocated for drm framebuffer. + * - this callback would be called by user application + * with DRM_IOCTL_MODE_MAP_DUMB command. + */ + + obj = drm_gem_object_lookup(dev, file_priv, handle); + if (!obj) { + DRM_ERROR("failed to lookup gem object.\n"); + mutex_unlock(&dev->struct_mutex); + return -EINVAL; + } + + samsung_gem_obj = to_samsung_gem_obj(obj); + + *offset = get_gem_mmap_offset(&samsung_gem_obj->base); + + drm_gem_object_unreference(obj); + + DRM_DEBUG_KMS("offset = 0x%x\n", (unsigned int)*offset); + + mutex_unlock(&dev->struct_mutex); + + return 0; +} + +int samsung_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf) +{ + struct drm_gem_object *obj = vma->vm_private_data; + struct samsung_drm_gem_obj *samsung_gem_obj = to_samsung_gem_obj(obj); + struct drm_device *dev = obj->dev; + unsigned long pfn; + pgoff_t page_offset; + int ret; + + page_offset = ((unsigned long)vmf->virtual_address - + vma->vm_start) >> PAGE_SHIFT; + + mutex_lock(&dev->struct_mutex); + + pfn = (samsung_gem_obj->entry->paddr >> PAGE_SHIFT) + page_offset; + + ret = vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn); + + mutex_unlock(&dev->struct_mutex); + + return convert_to_vm_err_msg(ret); +} + +int samsung_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma) +{ + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + /* set vm_area_struct. */ + ret = drm_gem_mmap(filp, vma); + if (ret < 0) { + DRM_ERROR("failed to mmap.\n"); + return ret; + } + + vma->vm_flags &= ~VM_PFNMAP; + vma->vm_flags |= VM_MIXEDMAP; + + return ret; +} + + +int samsung_drm_gem_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, unsigned int handle) +{ + int ret; + + DRM_DEBUG_KMS("%s\n", __FILE__); + + /** + * obj->refcount and obj->handle_count are decreased and + * if both them are 0 then samsung_drm_gem_free_object() + * would be called by callback to release resources. + */ + ret = drm_gem_handle_delete(file_priv, handle); + if (ret < 0) { + DRM_ERROR("failed to delete drm_gem_handle.\n"); + return ret; + } + + return 0; +} + +MODULE_AUTHOR("Inki Dae <inki.dae(a)samsung.com>"); +MODULE_DESCRIPTION("Samsung SoC DRM GEM Module"); +MODULE_LICENSE("GPL"); diff --git a/drivers/gpu/drm/samsung/samsung_drm_gem.h b/drivers/gpu/drm/samsung/samsung_drm_gem.h new file mode 100644 index 0000000..c6cd5e5 --- /dev/null +++ b/drivers/gpu/drm/samsung/samsung_drm_gem.h @@ -0,0 +1,98 @@ +/* samsung_drm_gem.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authoer: Inki Dae <inki.dae(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_GEM_H_ +#define _SAMSUNG_DRM_GEM_H_ + +#define to_samsung_gem_obj(x) container_of(x,\ + struct samsung_drm_gem_obj, base) + +/** + * samsung drm buffer structure. + * + * @entry: pointer to samsung drm buffer entry object. + * @flags: it means memory type to be alloated or cache attributes. + * @handle: gem handle. + * + * ps. this object would be transfered to user as kms_bo.handle so + * user can access to memory through kms_bo.handle. + */ +struct samsung_drm_gem_obj { + struct drm_gem_object base; + struct samsung_drm_buf_entry *entry; + unsigned int flags; +}; + + +/* create a new buffer and get a new gem handle. */ +struct samsung_drm_gem_obj *samsung_drm_gem_create(struct drm_file *file_priv, + struct drm_device *dev, unsigned int size, + unsigned int *handle); + +/* + * request gem object creation and buffer allocation as the size + * that it is calculated with framebuffer information such as width, + * height and bpp. + */ +int samsung_drm_gem_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +/* get buffer offset to map to user space. */ +int samsung_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +/* unmap a buffer from user space. */ +int samsung_drm_gem_munmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +/* initialize gem object. */ +int samsung_drm_gem_init_object(struct drm_gem_object *obj); + +/* free gem object. */ +void samsung_drm_gem_free_object(struct drm_gem_object *gem_obj); + +/* create memory region for drm framebuffer. */ +int samsung_drm_gem_dumb_create(struct drm_file *file_priv, + struct drm_device *dev, struct drm_mode_create_dumb *args); + +/* map memory region for drm framebuffer to user space. */ +int samsung_drm_gem_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, uint64_t *offset); + +/* page fault handler and mmap fault address(virtual) to physical memory. */ +int samsung_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); + +/* mmap gem object. */ +int samsung_drm_gem_mmap_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +/* set vm_flags and we can change vm attribute to other here. */ +int samsung_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); + +/* destroy memory region allocated. */ +int samsung_drm_gem_dumb_destroy(struct drm_file *file_priv, + struct drm_device *dev, unsigned int handle); + +#endif diff --git a/include/drm/samsung_drm.h b/include/drm/samsung_drm.h new file mode 100644 index 0000000..5f89cf1 --- /dev/null +++ b/include/drm/samsung_drm.h @@ -0,0 +1,103 @@ +/* samsung_drm.h + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * Authors: + * Inki Dae <inki.dae(a)samsung.com> + * Joonyoung Shim <jy0922.shim(a)samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _SAMSUNG_DRM_H_ +#define _SAMSUNG_DRM_H_ + +/** + * User-desired buffer creation information structure. + * + * @size: requested size for the object. + * - this size value would be page-aligned internally. + * @flags: user request for setting memory type or cache attributes. + * @handle: returned handle for the object. + */ +struct drm_samsung_gem_create { + unsigned int size; + unsigned int flags; + + unsigned int handle; +}; + +/** + * A structure for getting buffer offset. + * + * @handle: a pointer to gem object created. + * @offset: relatived offset value of the memory region allocated. + * - this value should be set by user. + */ +struct drm_samsung_gem_map_off { + unsigned int handle; + uint64_t offset; +}; + +/** + * A structure for mapping buffer. + * + * @handle: a pointer to gem object created. + * @offset: relatived offset value of the memory region allocated. + * - this value should be set by user. + * @size: memory size to be mapped. + * @mapped: user virtual address to be mapped. + */ +struct drm_samsung_gem_mmap { + unsigned int handle; + uint64_t offset; + unsigned int size; + + uint64_t mapped; +}; + +#define DRM_SAMSUNG_GEM_CREATE 0x00 +#define DRM_SAMSUNG_GEM_MAP_OFFSET 0x01 +#define DRM_SAMSUNG_GEM_MMAP 0x02 + +#define DRM_IOCTL_SAMSUNG_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_SAMSUNG_GEM_CREATE, struct drm_samsung_gem_create) + +#define DRM_IOCTL_SAMSUNG_GEM_MAP_OFFSET DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_SAMSUNG_GEM_MAP_OFFSET, struct drm_samsung_gem_map_off) + +#define DRM_IOCTL_SAMSUNG_GEM_MMAP DRM_IOWR(DRM_COMMAND_BASE + \ + DRM_SAMSUNG_GEM_MMAP, struct drm_samsung_gem_mmap) + +/** + * Platform Specific Structure for DRM based FIMD. + * + * @timing: default video mode for initializing + * @default_win: default window layer number to be used for UI. + * @bpp: default bit per pixel. + */ +struct samsung_drm_fimd_pdata { + struct fb_videomode timing; + u32 vidcon0; + u32 vidcon1; + unsigned int default_win; + unsigned int bpp; +}; + +#endif -- 1.7.0.4

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Whitespace cleanups in drm/i915
by Keith Packard 21 Sep '11

21 Sep '11

I've got this nice patch from Akshay Joshi that removes almost all of the checkpatch.pl warnings from drm/i915. If I don't merge it now, it's going to go stale and be useless; if I merge it only to drm-intel-next, it will be the source of endless conflicts. However, it's a huge patch (yes, the code was rather sloppy), and doesn't exactly fit into the "critical patches only please" mode of the current stage of 3.1 development. I've checked the patch very carefully, using the obvious git diff -b to make sure it really doesn't touch anything but whitespace, but also using objdump -s to compare the output of the compiler. There were no differences found with git-diff -b. The only differences found by objdump are two whitespace changes in some debug output messages in intel_bios.c. I think I have three choices: 1) merge the patch and expect complaints from upstream 2) thank Akshay for his good intentions, discard the patch and hope that he feels motivated enough to do it all over again in time for the 3.2 merge window. 3) thank Akshay for his good intentions and leave the code as-is, forever to ease back-porting of fixes to older kernel versions. Frankly, if we're ever going to merge whitespace fixups, this would be a pretty darn good time; drm-intel-fixes and drm-intel-next are in-sync as I haven't started pulling 3.2 code into -next. -- keith.packard(a)intel.com

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dri-devel September 2011