dri-devel May 2013

dri-devel@lists.freedesktop.org

116 participants
705 discussions

MultiSeat and GPU Acceleration
by jkcinci＠yahoo.com 02 May '13

02 May '13

Hi ! Yes, I'm a newbie, so to introduce myself. I have some programming knowledge from long ago and have dealt with databases, C, Assembler, Pascal and others. I've noticed lately, as I'm sure as you all have, about the dramatic increase in GPU processing capability. Cuda, openGL, openCL etc. I've noticed there has been quite an interest on the web to get MultiSeat software to run with gpu acceleration including SLI configurations. So far, I've not found any multiseat software that has this capability. I found quite a bit of documentation about gpu virtualization at FreeDesktop and a very interesting article I found at http://prasannakumartsm.wordpress.com/2011/07/19/s2tc-compromise-or-open-so… seemed very promising. I have quite a few more links that claim to have accomplished a MultiSeat environment with GPU acceleration and other related information. If anyone is interested in the links I've saved, please let me know and I'll post them. I just feel that having such a capability to offer to the general public will generate quite a bit of popularity for FreeDesktop. Regards, Jim

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[Bug 50941] Kernel does not compile
by bugzilla-daemon＠bugzilla.kernel.org 01 May '13

01 May '13

https://bugzilla.kernel.org/show_bug.cgi?id=50941 JP Pozzi <jp.pozzi(a)izzop.net> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |CODE_FIX --- Comment #4 from JP Pozzi <jp.pozzi(a)izzop.net> 2013-05-01 21:13:40 --- Hello, Did not get the problem with newer kernels. Bug to close. Regards -- Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are watching the assignee of the bug.

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[PATCH] drm/radeon: fix handling of v6 power tables
by alexdeucher＠gmail.com 01 May '13

01 May '13

From: Alex Deucher <alexander.deucher(a)amd.com> The code was mis-handling variable sizes arrays. Reported-by: Sylvain BERTRAND <sylware(a)legeek.net> Signed-off-by: Alex Deucher <alexander.deucher(a)amd.com> Cc: stable(a)vger.kernel.org --- drivers/gpu/drm/radeon/radeon_atombios.c | 11 +++++------ 1 files changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 250db70..dea6f63c 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -2518,6 +2518,7 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev) int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo); u16 data_offset; u8 frev, crev; + u8 *power_state_offset; if (!atom_parse_data_header(mode_info->atom_context, index, NULL, &frev, &crev, &data_offset)) @@ -2540,11 +2541,11 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev) state_array->ucNumEntries, GFP_KERNEL); if (!rdev->pm.power_state) return state_index; + power_state_offset = (u8 *)state_array->states; for (i = 0; i < state_array->ucNumEntries; i++) { mode_index = 0; - power_state = (union pplib_power_state *)&state_array->states[i]; - /* XXX this might be an inagua bug... */ - non_clock_array_index = i; /* power_state->v2.nonClockInfoIndex */ + power_state = (union pplib_power_state *)power_state_offset; + non_clock_array_index = power_state->v2.nonClockInfoIndex; non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *) &non_clock_info_array->nonClockInfo[non_clock_array_index]; rdev->pm.power_state[i].clock_info = kzalloc(sizeof(struct radeon_pm_clock_info) * @@ -2556,9 +2557,6 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev) if (power_state->v2.ucNumDPMLevels) { for (j = 0; j < power_state->v2.ucNumDPMLevels; j++) { clock_array_index = power_state->v2.clockInfoIndex[j]; - /* XXX this might be an inagua bug... */ - if (clock_array_index >= clock_info_array->ucNumEntries) - continue; clock_info = (union pplib_clock_info *) &clock_info_array->clockInfo[clock_array_index * clock_info_array->ucEntrySize]; valid = radeon_atombios_parse_pplib_clock_info(rdev, @@ -2580,6 +2578,7 @@ static int radeon_atombios_parse_power_table_6(struct radeon_device *rdev) non_clock_info); state_index++; } + power_state_offset += 2 + power_state->v2.ucNumDPMLevels; } /* if multiple clock modes, mark the lowest as no display */ for (i = 0; i < state_index; i++) { -- 1.7.7.5

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radeon pm bug?
by Sylvain BERTRAND 01 May '13

01 May '13

Hi, In radeon_atombios.c file, radeon_atombios_parse_power_table_6 function, the power state is selected using the state array index: power_state = (union pplib_power_state *)&state_array->states[i]; The state array has variable sized states which size should be computed as said in the atombios.h file, definition of ATOM_PPLIB_STATE_V2 struct. Bug? regards, -- Sylvain

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[Bug 48694] radeonsi_pipe.c:322:7: error: ‘PIPE_CAP_DUAL_SOURCE_BLEND’ undeclared
by bugzilla-daemon＠freedesktop.org 01 May '13

01 May '13

https://bugs.freedesktop.org/show_bug.cgi?id=48694 --- Comment #4 from Michel Dänzer <michel(a)daenzer.net> --- (In reply to comment #3) > FWIW, I made patches which remove radeon drivers from the scons build 2 > years ago and some people weren't very happy about it. At the time, the make based build system didn't support out-of-tree builds or even reliable parallel builds, both of which have been addressed with automake. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 64091] piglit glean/readPixSanity testcase fails on ppc64 with Radeon adapter
by bugzilla-daemon＠freedesktop.org 01 May '13

01 May '13

https://bugs.freedesktop.org/show_bug.cgi?id=64091 Jerome Glisse <glisse(a)freedesktop.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|dri-devel(a)lists.freedesktop |mesa-dev(a)lists.freedesktop. |.org |org Component|Drivers/Gallium/r600 |Mesa core --- Comment #9 from Jerome Glisse <glisse(a)freedesktop.org> --- You can look for R600_BIG_ENDIAN in r600 driver code for place where we program the hw depending on endianess. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 48694] radeonsi_pipe.c:322:7: error: ‘PIPE_CAP_DUAL_SOURCE_BLEND’ undeclared
by bugzilla-daemon＠freedesktop.org 01 May '13

01 May '13

https://bugs.freedesktop.org/show_bug.cgi?id=48694 --- Comment #3 from Marek Olšák <maraeo(a)gmail.com> --- FWIW, I made patches which remove radeon drivers from the scons build 2 years ago and some people weren't very happy about it. I think we shouldn't support 2 build systems for Linux-only drivers. -- You are receiving this mail because: You are the assignee for the bug.

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[Bug 48694] radeonsi_pipe.c:322:7: error: ‘PIPE_CAP_DUAL_SOURCE_BLEND’ undeclared
by bugzilla-daemon＠freedesktop.org 01 May '13

01 May '13

https://bugs.freedesktop.org/show_bug.cgi?id=48694 --- Comment #2 from José Fonseca <jfonseca(a)vmware.com> --- I'm fine droping radeon from scons build. Neither of the two build systems (scons / autotools) will go away any time soon, so instead of trying to build evertyhing with both, it makes more sense to focus on the targets/components that truly matter for the scons/autotools users. -- You are receiving this mail because: You are the assignee for the bug.

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[GIT PULL]: dma-buf updates for 3.10
by Sumit Semwal 01 May '13

01 May '13

Hi Linus, The 3.10 pull request for dma-buf framework updates: small one, could you please pull? Thanks and best regards, ~Sumit. The following changes since commit 5f56886521d6ddd3648777fae44d82382dd8c87f: Merge branch 'akpm' (incoming from Andrew) (2013-04-30 17:37:43 -0700) are available in the git repository at: git://git.linaro.org/people/sumitsemwal/linux-dma-buf.git tags/tag-for-linus-3.10 for you to fetch changes up to b89e35636bc75b72d15a1af6d49798802aff77d5: dma-buf: Add debugfs support (2013-05-01 16:36:22 +0530) ---------------------------------------------------------------- 3.10 dma-buf updates Added debugfs support to dma-buf. ---------------------------------------------------------------- Sumit Semwal (2): dma-buf: replace dma_buf_export() with dma_buf_export_named() dma-buf: Add debugfs support Documentation/dma-buf-sharing.txt | 13 ++- drivers/base/dma-buf.c | 169 +++++++++++++++++++++++++++++++++++++- include/linux/dma-buf.h | 16 +++- 3 files changed, 189 insertions(+), 9 deletions(-)

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[Bug 38856] New: [i915g] SIGSEGV src/gallium/drivers/i915/i915_state.c:511
by bugzilla-daemon＠freedesktop.org 01 May '13

01 May '13

https://bugs.freedesktop.org/show_bug.cgi?id=38856 Summary: [i915g] SIGSEGV src/gallium/drivers/i915/i915_state.c:511 Product: Mesa Version: git Platform: x86 (IA32) OS/Version: Linux (All) Status: NEW Severity: critical Priority: medium Component: Drivers/Gallium/i915g AssignedTo: dri-devel(a)lists.freedesktop.org ReportedBy: vlee(a)vmware.com mesa: f8fcaf0215f0434baf13bb5c45545c58f97846b6 (master) chipset: 945GM (Intel GMA 950) system architecture: i686 xserver-xorg-video-intel: 2:2.14.0-4ubuntu7.1 libdrm-intel1: 2.4.23-1ubuntu6 kernel version: 2.6.38-8-generic Linux distribution: Ubuntu 11.04 i386 Run piglit fbo-copyteximage test. $ ./bin/fbo-copyteximage -auto Probe at (73,73) Expected: 1.000000 0.000000 0.000000 Observed: 0.000000 0.000000 1.000000 Probe at (200,73) Expected: 0.000000 1.000000 0.000000 Observed: 1.000000 0.000000 0.000000 Probe at (73,200) Expected: 0.000000 0.000000 1.000000 Observed: 1.000000 1.000000 1.000000 Segmentation fault (core dumped) Core was generated by `./bin/fbo-copyteximage -auto'. Program terminated with signal 11, Segmentation fault. #0 __libc_free (mem=0x3f800000) at malloc.c:3709 3709 malloc.c: No such file or directory. in malloc.c (gdb) bt #0 __libc_free (mem=0x3f800000) at malloc.c:3709 #1 0x01134a96 in i915_delete_fs_state (pipe=0x94343f8, shader=0x94f66d8) at src/gallium/drivers/i915/i915_state.c:511 #2 0x0115b2d9 in aaline_delete_fs_state (pipe=0x94343f8, fs=0x94f5398) at src/gallium/auxiliary/draw/draw_pipe_aaline.c:880 #3 0x01188635 in util_blitter_destroy (blitter=0x94bd360) at src/gallium/auxiliary/util/u_blitter.c:251 #4 0x011310df in i915_destroy (pipe=0x94343f8) at src/gallium/drivers/i915/i915_context.c:105 #5 0x0196f29f in st_destroy_context (st=0x9500598) at src/mesa/state_tracker/st_context.c:261 #6 0x018a7ce1 in st_context_destroy (stctxi=0x9500598) at src/mesa/state_tracker/st_manager.c:651 #7 0x018a34fc in dri_destroy_context (cPriv=0x942df90) at src/gallium/state_trackers/dri/drm/dri_context.c:135 #8 0x0120ea80 in driDestroyContext (pcp=0x942df90) at src/mesa/drivers/dri/common/dri_util.c:588 #9 0x002d45a0 in dri2_destroy_context (context=0x942ed50) at dri2_glx.c:129 #10 0x002aecf0 in glx_display_free (priv=0x942cad0) at glxext.c:220 #11 0x002aed7c in __glXCloseDisplay (dpy=0x9422028, codes=0x942cd5c) at glxext.c:265 #12 0x00583ccb in XCloseDisplay () from /usr/lib/i386-linux-gnu/libX11.so.6 #13 0x003a3693 in fgDeinitialize () at freeglut_init.c:488 #14 0x003a6997 in glutMainLoop () at freeglut_main.c:1533 #15 0x0806b2df in main (argc=1, argv=0xbf9cd2b4) at piglit/tests/util/piglit-framework.c:116 (gdb) frame 1 #1 0x01134a96 in i915_delete_fs_state (pipe=0x94343f8, shader=0x94f66d8) at src/gallium/drivers/i915/i915_state.c:511 511 FREE(ifs->program); (gdb) print ifs->program $1 = (uint *) 0x3f800000 -- 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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dri-devel May 2013