dri-devel April 2022

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Patch "drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB" has been added to the 5.16-stable tree
by gregkh＠linuxfoundation.org 02 Apr '22

02 Apr '22

This is a note to let you know that I've just added the patch titled drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB to the 5.16-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch and it can be found in the queue-5.16 subdirectory. If you, or anyone else, feels it should not be added to the … [View More]stable tree, please let <stable(a)vger.kernel.org> know about it. >From cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 1 Feb 2022 12:53:05 +0100 Subject: drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB From: Thomas Zimmermann <tzimmermann(a)suse.de> commit cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c upstream. Mark screen buffers in system memory with FBINFO_VIRTFB. Otherwise, fbdev deferred I/O marks mmap'ed areas of system memory with VM_IO. (There's an inverse relationship between the two flags.) For shadow buffers, also set the FBINFO_READS_FAST hint. v3: * change FB_ to FBINFO_ in commit description v2: * updated commit description (Daniel) * added Fixes tag Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function") Reviewed-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://patchwork.freedesktop.org/patch/msgid/20220201115305.9333-1-tzimmer… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpu/drm/drm_fb_helper.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2346,6 +2346,7 @@ static int drm_fb_helper_generic_probe(s fbi->fbops = &drm_fbdev_fb_ops; fbi->screen_size = fb->height * fb->pitches[0]; fbi->fix.smem_len = fbi->screen_size; + fbi->flags = FBINFO_DEFAULT; drm_fb_helper_fill_info(fbi, fb_helper, sizes); @@ -2353,19 +2354,21 @@ static int drm_fb_helper_generic_probe(s fbi->screen_buffer = vzalloc(fbi->screen_size); if (!fbi->screen_buffer) return -ENOMEM; + fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; fbi->fbdefio = &drm_fbdev_defio; - fb_deferred_io_init(fbi); } else { /* buffer is mapped for HW framebuffer */ ret = drm_client_buffer_vmap(fb_helper->buffer, &map); if (ret) return ret; - if (map.is_iomem) + if (map.is_iomem) { fbi->screen_base = map.vaddr_iomem; - else + } else { fbi->screen_buffer = map.vaddr; + fbi->flags |= FBINFO_VIRTFB; + } /* * Shamelessly leak the physical address to user-space. As Patches currently in stable-queue which might be from tzimmermann(a)suse.de are queue-5.16/fbdev-hot-unplug-firmware-fb-devices-on-forced-removal.patch queue-5.16/drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch queue-5.16/drm-simpledrm-add-panel-orientation-property-on-non-upright-mounted-lcd-panels.patch queue-5.16/mgag200-fix-memmapsl-configuration-in-gctl6-register.patch [View Less]

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Patch "drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB" has been added to the 5.15-stable tree
by gregkh＠linuxfoundation.org 02 Apr '22

02 Apr '22

This is a note to let you know that I've just added the patch titled drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB to the 5.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch and it can be found in the queue-5.15 subdirectory. If you, or anyone else, feels it should not be added to the … [View More]stable tree, please let <stable(a)vger.kernel.org> know about it. >From cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 1 Feb 2022 12:53:05 +0100 Subject: drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB From: Thomas Zimmermann <tzimmermann(a)suse.de> commit cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c upstream. Mark screen buffers in system memory with FBINFO_VIRTFB. Otherwise, fbdev deferred I/O marks mmap'ed areas of system memory with VM_IO. (There's an inverse relationship between the two flags.) For shadow buffers, also set the FBINFO_READS_FAST hint. v3: * change FB_ to FBINFO_ in commit description v2: * updated commit description (Daniel) * added Fixes tag Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function") Reviewed-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://patchwork.freedesktop.org/patch/msgid/20220201115305.9333-1-tzimmer… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpu/drm/drm_fb_helper.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2346,6 +2346,7 @@ static int drm_fb_helper_generic_probe(s fbi->fbops = &drm_fbdev_fb_ops; fbi->screen_size = fb->height * fb->pitches[0]; fbi->fix.smem_len = fbi->screen_size; + fbi->flags = FBINFO_DEFAULT; drm_fb_helper_fill_info(fbi, fb_helper, sizes); @@ -2353,19 +2354,21 @@ static int drm_fb_helper_generic_probe(s fbi->screen_buffer = vzalloc(fbi->screen_size); if (!fbi->screen_buffer) return -ENOMEM; + fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; fbi->fbdefio = &drm_fbdev_defio; - fb_deferred_io_init(fbi); } else { /* buffer is mapped for HW framebuffer */ ret = drm_client_buffer_vmap(fb_helper->buffer, &map); if (ret) return ret; - if (map.is_iomem) + if (map.is_iomem) { fbi->screen_base = map.vaddr_iomem; - else + } else { fbi->screen_buffer = map.vaddr; + fbi->flags |= FBINFO_VIRTFB; + } /* * Shamelessly leak the physical address to user-space. As Patches currently in stable-queue which might be from tzimmermann(a)suse.de are queue-5.15/fbdev-hot-unplug-firmware-fb-devices-on-forced-removal.patch queue-5.15/drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch queue-5.15/drm-simpledrm-add-panel-orientation-property-on-non-upright-mounted-lcd-panels.patch queue-5.15/mgag200-fix-memmapsl-configuration-in-gctl6-register.patch [View Less]

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Patch "drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB" has been added to the 5.17-stable tree
by gregkh＠linuxfoundation.org 02 Apr '22

02 Apr '22

This is a note to let you know that I've just added the patch titled drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB to the 5.17-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=sum… The filename of the patch is: drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch and it can be found in the queue-5.17 subdirectory. If you, or anyone else, feels it should not be added to the … [View More]stable tree, please let <stable(a)vger.kernel.org> know about it. >From cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c Mon Sep 17 00:00:00 2001 From: Thomas Zimmermann <tzimmermann(a)suse.de> Date: Tue, 1 Feb 2022 12:53:05 +0100 Subject: drm/fb-helper: Mark screen buffers in system memory with FBINFO_VIRTFB From: Thomas Zimmermann <tzimmermann(a)suse.de> commit cd9f7f7ac5932129fe81b4c7559cfcb226ec7c5c upstream. Mark screen buffers in system memory with FBINFO_VIRTFB. Otherwise, fbdev deferred I/O marks mmap'ed areas of system memory with VM_IO. (There's an inverse relationship between the two flags.) For shadow buffers, also set the FBINFO_READS_FAST hint. v3: * change FB_ to FBINFO_ in commit description v2: * updated commit description (Daniel) * added Fixes tag Signed-off-by: Thomas Zimmermann <tzimmermann(a)suse.de> Fixes: d536540f304c ("drm/fb-helper: Add generic fbdev emulation .fb_probe function") Reviewed-by: Daniel Vetter <daniel.vetter(a)ffwll.ch> Cc: dri-devel(a)lists.freedesktop.org Cc: <stable(a)vger.kernel.org> # v4.19+ Link: https://patchwork.freedesktop.org/patch/msgid/20220201115305.9333-1-tzimmer… Signed-off-by: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> --- drivers/gpu/drm/drm_fb_helper.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) --- a/drivers/gpu/drm/drm_fb_helper.c +++ b/drivers/gpu/drm/drm_fb_helper.c @@ -2346,6 +2346,7 @@ static int drm_fb_helper_generic_probe(s fbi->fbops = &drm_fbdev_fb_ops; fbi->screen_size = sizes->surface_height * fb->pitches[0]; fbi->fix.smem_len = fbi->screen_size; + fbi->flags = FBINFO_DEFAULT; drm_fb_helper_fill_info(fbi, fb_helper, sizes); @@ -2353,19 +2354,21 @@ static int drm_fb_helper_generic_probe(s fbi->screen_buffer = vzalloc(fbi->screen_size); if (!fbi->screen_buffer) return -ENOMEM; + fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST; fbi->fbdefio = &drm_fbdev_defio; - fb_deferred_io_init(fbi); } else { /* buffer is mapped for HW framebuffer */ ret = drm_client_buffer_vmap(fb_helper->buffer, &map); if (ret) return ret; - if (map.is_iomem) + if (map.is_iomem) { fbi->screen_base = map.vaddr_iomem; - else + } else { fbi->screen_buffer = map.vaddr; + fbi->flags |= FBINFO_VIRTFB; + } /* * Shamelessly leak the physical address to user-space. As Patches currently in stable-queue which might be from tzimmermann(a)suse.de are queue-5.17/fbdev-hot-unplug-firmware-fb-devices-on-forced-removal.patch queue-5.17/drm-fb-helper-mark-screen-buffers-in-system-memory-with-fbinfo_virtfb.patch queue-5.17/drm-simpledrm-add-panel-orientation-property-on-non-upright-mounted-lcd-panels.patch queue-5.17/mgag200-fix-memmapsl-configuration-in-gctl6-register.patch [View Less]

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[PATCH v8 0/3] Refactor GVT-g MMIO tracking table and handlers
by Zhi Wang 02 Apr '22

02 Apr '22

To support the new mdev interfaces and the re-factor patches from Christoph, which moves the GVT-g code into a dedicated module, the GVT-g initialization path has to be separated into two phases: a) Early initialization. The early initialization of GVT requires to be done when loading i915. Mostly it's because the initial clean HW state needs to be saved before i915 touches the HW. b) Late initalization. This phases of initalization will setup the rest components of GVT-g, which can be done … [View More]

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[PATCH 0/1] drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels
by Hans de Goede 02 Apr '22

02 Apr '22

Hi Greg, Fedora 36 has switched from efifb to simpledrm as the pre-native-GPU driver fb provider and the lack of this patch is causing issues for devices with non up-right mounted LCD panels (1), can you please add this to the 5.17 stable series? Regards, Hans 1) https://bugzilla.redhat.com/show_bug.cgi?id=2071134 Hans de Goede (1): drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels drivers/gpu/drm/tiny/simpledrm.c | 3 +++ 1 file changed, 3 insertions(+) -- 2.35.1

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[PATCH] drm/radeon/combios: Prepare cleanup of powerpc's asm/prom.h
by Christophe Leroy 02 Apr '22

02 Apr '22

powerpc's asm/prom.h brings some headers that it doesn't need itself. In order to clean it up, first add missing headers in users of asm/prom.h Signed-off-by: Christophe Leroy <christophe.leroy(a)csgroup.eu> --- drivers/gpu/drm/radeon/radeon_combios.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c index 783a6b8802d5..76b7113f0f32 100644 --- a/drivers/gpu/drm/radeon/radeon_combios.c +++ b/drivers/gpu/… [View More]

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[PATCH v15 0/6] drm/loongson: add drm driver for loongson display controller
by Sui Jingfeng 02 Apr '22

02 Apr '22

There is a display controller in loongson's LS2K1000 SoC and LS7A1000 bridge chip, the display controller is a PCI device. It have two display pipes but with only one hardware cursor. Each way has a DVO interface which provide RGB888 signals, vertical & horizontal synchronisations, data enable and the pixel clock. Each CRTC is able to drive a 1920x1080@60Hz monitor, the maxmium resolution is 2048x2048. Loongson display controllers are simple which require scanout buffers to be physically … [View More]contiguous. For LS7A1000 bridge chip, the DC is equipped with a dedicated video RAM which is typically 64MB or more. In this case, VRAM helper based driver is intended to be used even through the DC can scanout form system memory. While LS2K1000 is a SoC which is a typically UMA device, only system memory is available. Therefore CMA helper based driver is intended to be used. It is possible to use VRAM helper based driver on LS2K1000 by carving out part of system memory as VRAM though. For LS7A1000, there are 4 dedicated GPIOs whose control registers is located at the DC register space, They are used to emulate two way i2c. One for DVO0, another for DVO1. LS2K1000 and LS2K0500 SoC don't have such GPIO hardwared, they grab i2c adapter from other module, either general purpose GPIO emulated i2c or hardware i2c adapter. +------+ +-----------------------------------+ | DDR4 | | +-------------------+ | +------+ | | PCIe Root complex | LS7A1000 | || MC0 | +--++---------++----+ | +----------+ HT 3.0 | || || | | LS3A4000 |<-------->| +---++---+ +--++--+ +---------+ +------+ | CPU |<-------->| | GC1000 | | LSDC |<-->| DDR3 MC |<->| VRAM | +----------+ | +--------+ +-+--+-+ +---------+ +------+ || MC1 +---------------|--|----------------+ +------+ | | | DDR4 | +-------+ DVO0 | | DVO1 +------+ +------+ VGA <--|ADV7125|<--------+ +-------->|TFP410|--> DVI/HDMI +-------+ +------+ The above picture give a simple usage of LS7A1000, note that the encoder is not necessary adv7125 or tfp410, other candicates can be ch7034b, sil9022, ite66121 and lt8618 etc. Below is a brief introduction of loongson's CPU, bridge chip and SoC. LS2K1000 is a double core 1.0Ghz mips64r2 compatible SoC[1]. LS7A1000 is a bridge chip made by Loongson corporation which act as north and/or south bridge of loongson's desktop and server level processor. It is equivalent to AMD RS780E+SB710 or something like that. More details can be read from its user manual[2]. This bridge chip is typically use with LS3A3000, LS3A4000 and LS3A5000 cpu. LS3A3000 is 4 core 1.45gHz mips64r2 compatible cpu. LS3A4000 is 4 core 1.8gHz mips64r5 compatible cpu[3]. LS3A5000 is 4 core 2.5gHz loongarch cpu[4]. Nearly all loongson cpu has the hardware maintain the cache coherency, this is the most distinct feature from other Mips cpu. [1] https://wiki.debian.org/InstallingDebianOn/Lemote/Loongson2K1000 [2] https://loongson.github.io/LoongArch-Documentation/Loongson-7A1000-usermanu… [3] https://ee-paper.com/loongson-3a4000-3b4000-motherboard-products-are-compat… [4] https://loongson.github.io/LoongArch-Documentation/Loongson-3A5000-usermanu… [5] https://github.com/loongson-community/pmon Sui Jingfeng (6): MIPS: Loongson64: dts: update the display controller device node MIPS: Loongson64: introduce board specific dts and add model property dt-bindings: display: Add Loongson display controller MIPS: Loongson64: defconfig: enable display bridge drivers drm/loongson: add drm driver for loongson display controller MAINTAINERS: add maintainers for DRM LOONGSON driver .../loongson/loongson,display-controller.yaml | 289 +++++++++ MAINTAINERS | 9 + arch/mips/boot/dts/loongson/Makefile | 4 + arch/mips/boot/dts/loongson/lemote_a1901.dts | 96 +++ .../boot/dts/loongson/loongson64-2k1000.dtsi | 8 + .../boot/dts/loongson/ls2k1000_pai_udb.dts | 107 ++++ .../boot/dts/loongson/ls3a4000_7a1000_evb.dts | 138 +++++ arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 22 +- arch/mips/configs/loongson2k_defconfig | 5 + arch/mips/configs/loongson3_defconfig | 5 + drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/loongson/Kconfig | 25 + drivers/gpu/drm/loongson/Makefile | 16 + drivers/gpu/drm/loongson/lsdc_crtc.c | 400 ++++++++++++ drivers/gpu/drm/loongson/lsdc_debugfs.c | 176 ++++++ drivers/gpu/drm/loongson/lsdc_debugfs.h | 17 + drivers/gpu/drm/loongson/lsdc_drv.c | 413 +++++++++++++ drivers/gpu/drm/loongson/lsdc_drv.h | 186 ++++++ drivers/gpu/drm/loongson/lsdc_i2c.c | 268 ++++++++ drivers/gpu/drm/loongson/lsdc_i2c.h | 38 ++ drivers/gpu/drm/loongson/lsdc_irq.c | 57 ++ drivers/gpu/drm/loongson/lsdc_irq.h | 17 + drivers/gpu/drm/loongson/lsdc_output.c | 261 ++++++++ drivers/gpu/drm/loongson/lsdc_output.h | 21 + drivers/gpu/drm/loongson/lsdc_pci_drv.c | 342 +++++++++++ drivers/gpu/drm/loongson/lsdc_plane.c | 436 +++++++++++++ drivers/gpu/drm/loongson/lsdc_pll.c | 573 ++++++++++++++++++ drivers/gpu/drm/loongson/lsdc_pll.h | 87 +++ drivers/gpu/drm/loongson/lsdc_regs.h | 219 +++++++ 30 files changed, 4233 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml create mode 100644 arch/mips/boot/dts/loongson/lemote_a1901.dts create mode 100644 arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts create mode 100644 arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts create mode 100644 drivers/gpu/drm/loongson/Kconfig create mode 100644 drivers/gpu/drm/loongson/Makefile create mode 100644 drivers/gpu/drm/loongson/lsdc_crtc.c create mode 100644 drivers/gpu/drm/loongson/lsdc_debugfs.c create mode 100644 drivers/gpu/drm/loongson/lsdc_debugfs.h create mode 100644 drivers/gpu/drm/loongson/lsdc_drv.c create mode 100644 drivers/gpu/drm/loongson/lsdc_drv.h create mode 100644 drivers/gpu/drm/loongson/lsdc_i2c.c create mode 100644 drivers/gpu/drm/loongson/lsdc_i2c.h create mode 100644 drivers/gpu/drm/loongson/lsdc_irq.c create mode 100644 drivers/gpu/drm/loongson/lsdc_irq.h create mode 100644 drivers/gpu/drm/loongson/lsdc_output.c create mode 100644 drivers/gpu/drm/loongson/lsdc_output.h create mode 100644 drivers/gpu/drm/loongson/lsdc_pci_drv.c create mode 100644 drivers/gpu/drm/loongson/lsdc_plane.c create mode 100644 drivers/gpu/drm/loongson/lsdc_pll.c create mode 100644 drivers/gpu/drm/loongson/lsdc_pll.h create mode 100644 drivers/gpu/drm/loongson/lsdc_regs.h -- 2.25.1 [View Less]

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[PATCH v14 0/6] drm/loongson: add drm driver for loongson display controller
by Sui Jingfeng 02 Apr '22

02 Apr '22

There is a display controller in loongson's LS2K1000 SoC and LS7A1000 bridge chip, the display controller is a PCI device. It have two display pipes but with only one hardware cursor. Each way has a DVO interface which provide RGB888 signals, vertical & horizontal synchronisations, data enable and the pixel clock. Each CRTC is able to drive a 1920x1080@60Hz monitor, the maxmium resolution is 2048x2048. Loongson display controllers are simple which require scanout buffers to be physically … [View More]contiguous. For LS7A1000 bridge chip, the DC is equipped with a dedicated video RAM which is typically 64MB or more. In this case, VRAM helper based driver is intended to be used even through the DC can scanout form system memory. While LS2K1000 is a SoC which is a typically UMA device, only system memory is available. Therefore CMA helper based driver is intended to be used. It is possible to use VRAM helper based driver on LS2K1000 by carving out part of system memory as VRAM though. For LS7A1000, there are 4 dedicated GPIOs whose control registers is located at the DC register space, They are used to emulate two way i2c. One for DVO0, another for DVO1. LS2K1000 and LS2K0500 SoC don't have such GPIO hardwared, they grab i2c adapter from other module, either general purpose GPIO emulated i2c or hardware i2c adapter. +------+ +-----------------------------------+ | DDR4 | | +-------------------+ | +------+ | | PCIe Root complex | LS7A1000 | || MC0 | +--++---------++----+ | +----------+ HT 3.0 | || || | | LS3A4000 |<-------->| +---++---+ +--++--+ +---------+ +------+ | CPU |<-------->| | GC1000 | | LSDC |<-->| DDR3 MC |<->| VRAM | +----------+ | +--------+ +-+--+-+ +---------+ +------+ || MC1 +---------------|--|----------------+ +------+ | | | DDR4 | +-------+ DVO0 | | DVO1 +------+ +------+ VGA <--|ADV7125|<--------+ +-------->|TFP410|--> DVI/HDMI +-------+ +------+ The above picture give a simple usage of LS7A1000, note that the encoder is not necessary adv7125 or tfp410, other candicates can be ch7034b, sil9022, ite66121 and lt8618 etc. Below is a brief introduction of loongson's CPU, bridge chip and SoC. LS2K1000 is a double core 1.0Ghz mips64r2 compatible SoC[1]. LS7A1000 is a bridge chip made by Loongson corporation which act as north and/or south bridge of loongson's desktop and server level processor. It is equivalent to AMD RS780E+SB710 or something like that. More details can be read from its user manual[2]. This bridge chip is typically use with LS3A3000, LS3A4000 and LS3A5000 cpu. LS3A3000 is 4 core 1.45gHz mips64r2 compatible cpu. LS3A4000 is 4 core 1.8gHz mips64r5 compatible cpu[3]. LS3A5000 is 4 core 2.5gHz loongarch cpu[4]. Nearly all loongson cpu has the hardware maintain the cache coherency, this is the most distinct feature from other Mips cpu. [1] https://wiki.debian.org/InstallingDebianOn/Lemote/Loongson2K1000 [2] https://loongson.github.io/LoongArch-Documentation/Loongson-7A1000-usermanu… [3] https://ee-paper.com/loongson-3a4000-3b4000-motherboard-products-are-compat… [4] https://loongson.github.io/LoongArch-Documentation/Loongson-3A5000-usermanu… [5] https://github.com/loongson-community/pmon Sui Jingfeng (6): MIPS: Loongson64: dts: update the display controller device node MIPS: Loongson64: introduce board specific dts and add model property dt-bindings: display: Add Loongson display controller MIPS: Loongson64: defconfig: enable display bridge drivers drm/loongson: add drm driver for loongson display controller MAINTAINERS: add maintainers for DRM LOONGSON driver .../loongson/loongson,display-controller.yaml | 295 +++++++++ MAINTAINERS | 9 + arch/mips/boot/dts/loongson/Makefile | 4 + arch/mips/boot/dts/loongson/lemote_a1901.dts | 96 +++ .../boot/dts/loongson/loongson64-2k1000.dtsi | 8 + .../boot/dts/loongson/ls2k1000_pai_udb.dts | 107 ++++ .../boot/dts/loongson/ls3a4000_7a1000_evb.dts | 138 +++++ arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 22 +- arch/mips/configs/loongson2k_defconfig | 5 + arch/mips/configs/loongson3_defconfig | 5 + drivers/gpu/drm/Kconfig | 2 + drivers/gpu/drm/Makefile | 1 + drivers/gpu/drm/loongson/Kconfig | 25 + drivers/gpu/drm/loongson/Makefile | 16 + drivers/gpu/drm/loongson/lsdc_crtc.c | 400 ++++++++++++ drivers/gpu/drm/loongson/lsdc_debugfs.c | 176 ++++++ drivers/gpu/drm/loongson/lsdc_debugfs.h | 17 + drivers/gpu/drm/loongson/lsdc_drv.c | 413 +++++++++++++ drivers/gpu/drm/loongson/lsdc_drv.h | 186 ++++++ drivers/gpu/drm/loongson/lsdc_i2c.c | 268 ++++++++ drivers/gpu/drm/loongson/lsdc_i2c.h | 38 ++ drivers/gpu/drm/loongson/lsdc_irq.c | 57 ++ drivers/gpu/drm/loongson/lsdc_irq.h | 17 + drivers/gpu/drm/loongson/lsdc_output.c | 261 ++++++++ drivers/gpu/drm/loongson/lsdc_output.h | 21 + drivers/gpu/drm/loongson/lsdc_pci_drv.c | 342 +++++++++++ drivers/gpu/drm/loongson/lsdc_plane.c | 436 +++++++++++++ drivers/gpu/drm/loongson/lsdc_pll.c | 573 ++++++++++++++++++ drivers/gpu/drm/loongson/lsdc_pll.h | 87 +++ drivers/gpu/drm/loongson/lsdc_regs.h | 219 +++++++ 30 files changed, 4239 insertions(+), 5 deletions(-) create mode 100644 Documentation/devicetree/bindings/display/loongson/loongson,display-controller.yaml create mode 100644 arch/mips/boot/dts/loongson/lemote_a1901.dts create mode 100644 arch/mips/boot/dts/loongson/ls2k1000_pai_udb.dts create mode 100644 arch/mips/boot/dts/loongson/ls3a4000_7a1000_evb.dts create mode 100644 drivers/gpu/drm/loongson/Kconfig create mode 100644 drivers/gpu/drm/loongson/Makefile create mode 100644 drivers/gpu/drm/loongson/lsdc_crtc.c create mode 100644 drivers/gpu/drm/loongson/lsdc_debugfs.c create mode 100644 drivers/gpu/drm/loongson/lsdc_debugfs.h create mode 100644 drivers/gpu/drm/loongson/lsdc_drv.c create mode 100644 drivers/gpu/drm/loongson/lsdc_drv.h create mode 100644 drivers/gpu/drm/loongson/lsdc_i2c.c create mode 100644 drivers/gpu/drm/loongson/lsdc_i2c.h create mode 100644 drivers/gpu/drm/loongson/lsdc_irq.c create mode 100644 drivers/gpu/drm/loongson/lsdc_irq.h create mode 100644 drivers/gpu/drm/loongson/lsdc_output.c create mode 100644 drivers/gpu/drm/loongson/lsdc_output.h create mode 100644 drivers/gpu/drm/loongson/lsdc_pci_drv.c create mode 100644 drivers/gpu/drm/loongson/lsdc_plane.c create mode 100644 drivers/gpu/drm/loongson/lsdc_pll.c create mode 100644 drivers/gpu/drm/loongson/lsdc_pll.h create mode 100644 drivers/gpu/drm/loongson/lsdc_regs.h -- 2.25.1 [View Less]

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[PATCH v6 0/5] phy: phy-fsl-imx8-mipi-dphy: Add i.MX8qxp LVDS PHY mode support
by Liu Ying 02 Apr '22

02 Apr '22

Hi, This is the v6 series to add i.MX8qxp LVDS PHY mode support for the Mixel PHY in the Freescale i.MX8qxp SoC. Comparing to v5, this version only rebases the series upon v5.17-rc1. The Mixel PHY is MIPI DPHY + LVDS PHY combo, which can works in either MIPI DPHY mode or LVDS PHY mode. The PHY mode is controlled by i.MX8qxp SCU firmware. The PHY driver would call a SCU function to configure the mode. The PHY driver is already supporting the Mixel MIPI DPHY in i.MX8mq SoC, where it appears … [View More]to be a single MIPI DPHY. Patch 1/5 sets PHY mode in the Northwest Logic MIPI DSI host controller bridge driver, since i.MX8qxp SoC embeds this controller IP to support MIPI DSI displays together with the Mixel PHY. Patch 2/5 allows LVDS PHYs to be configured through the generic PHY functions and through a custom structure added to the generic PHY configuration union. Patch 3/5 converts mixel,mipi-dsi-phy plain text dt binding to json-schema. Patch 4/5 adds dt binding support for the Mixel combo PHY in i.MX8qxp SoC. Patch 5/5 adds the i.MX8qxp LVDS PHY mode support in the Mixel PHY driver. Welcome comments, thanks. v5->v6: * Rebase the series upon v5.17-rc1. * Set PHY mode in ->mode_set() instead of ->pre_enable() in the nwl-dsi bridge driver in patch 1/5 due to the rebase. * Drop Guido's R-b tag on patch 1/5 due to the rebase. v4->v5: * Align kernel-doc style of include/linux/phy/phy-lvds.h to include/linux/phy/phy.h for patch 2/5. (Vinod) * Trivial tweaks on patch 2/5. * Drop Robert's R-b tag on patch 2/5. v3->v4: * Add all R-b tags received from v3 on relevant patches and respin. (Robert) v2->v3: * Improve readability of mixel_dphy_set_mode() in the Mixel PHY driver. (Guido) * Improve the 'clock-names' property in the PHY dt binding. v1->v2: * Convert mixel,mipi-dsi-phy plain text dt binding to json-schema. (Guido) * Print invalid PHY mode in dmesg from the Mixel PHY driver. (Guido) * Add Guido's R-b tag on the patch for the nwl-dsi drm bridge driver. Liu Ying (5): drm/bridge: nwl-dsi: Set PHY mode in nwl_dsi_mode_set() phy: Add LVDS configuration options dt-bindings: phy: Convert mixel,mipi-dsi-phy to json-schema dt-bindings: phy: mixel: mipi-dsi-phy: Add Mixel combo PHY support for i.MX8qxp phy: freescale: phy-fsl-imx8-mipi-dphy: Add i.MX8qxp LVDS PHY mode support .../bindings/phy/mixel,mipi-dsi-phy.txt | 29 -- .../bindings/phy/mixel,mipi-dsi-phy.yaml | 107 +++++++ drivers/gpu/drm/bridge/nwl-dsi.c | 6 + .../phy/freescale/phy-fsl-imx8-mipi-dphy.c | 269 +++++++++++++++++- include/linux/phy/phy-lvds.h | 32 +++ include/linux/phy/phy.h | 4 + 6 files changed, 407 insertions(+), 40 deletions(-) delete mode 100644 Documentation/devicetree/bindings/phy/mixel,mipi-dsi-phy.txt create mode 100644 Documentation/devicetree/bindings/phy/mixel,mipi-dsi-phy.yaml create mode 100644 include/linux/phy/phy-lvds.h -- 2.25.1 [View Less]

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[PATCH 0/4] drm/msm/adreno: add support for a730
by Jonathan Marek 02 Apr '22

02 Apr '22

Based on a6xx_gpu.c, stripped down and updated for a7xx based on the downstream driver. Implements the minimum to be able to submit commands to the GPU and use it for userspace driver development. Notably this doesn't implement support for the GMU (this means that the clock driver needs to support the GPU core clock and turning on the GX rail, which is normally offloaded to the GMU). Register updates: https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15602 Jonathan Marek (4): drm/… [View More]

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dri-devel April 2022