kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c, branch v6.6.132

drm: Update file owner during use

2024-01-01T12:42:25+00:00

[ Upstream commit 1c7a387ffef894b1ab3942f0482dac7a6e0a909c ] With the typical model where the display server opens the file descriptor and then hands it over to the client(*), we were showing stale data in debugfs. Fix it by updating the drm_file->pid on ioctl access from a different process. The field is also made RCU protected to allow for lockless readers. Update side is protected with dev->filelist_mutex. Before: $ cat /sys/kernel/debug/dri/0/clients command pid dev master a uid magic Xorg 2344 0 y y 0 0 Xorg 2344 0 n y 0 2 Xorg 2344 0 n y 0 3 Xorg 2344 0 n y 0 4 After: $ cat /sys/kernel/debug/dri/0/clients command tgid dev master a uid magic Xorg 830 0 y y 0 0 xfce4-session 880 0 n y 0 1 xfwm4 943 0 n y 0 2 neverball 1095 0 n y 0 3 *) More detailed and historically accurate description of various handover implementation kindly provided by Emil Velikov: """ The traditional model, the server was the orchestrator managing the primary device node. From the fd, to the master status and authentication. But looking at the fd alone, this has varied across the years. IIRC in the DRI1 days, Xorg (libdrm really) would have a list of open fd(s) and reuse those whenever needed, DRI2 the client was responsible for open() themselves and with DRI3 the fd was passed to the client. Around the inception of DRI3 and systemd-logind, the latter became another possible orchestrator. Whereby Xorg and Wayland compositors could ask it for the fd. For various reasons (hysterical and genuine ones) Xorg has a fallback path going the open(), whereas Wayland compositors are moving to solely relying on logind... some never had fallback even. Over the past few years, more projects have emerged which provide functionality similar (be that on API level, Dbus, or otherwise) to systemd-logind. """ v2: * Fixed typo in commit text and added a fine historical explanation from Emil. Signed-off-by: Tvrtko Ursulin Cc: "Christian König" Cc: Daniel Vetter Acked-by: Christian König Reviewed-by: Emil Velikov Reviewed-by: Rob Clark Tested-by: Rob Clark Link: https://patchwork.freedesktop.org/patch/msgid/20230621094824.2348732-1-tvrtko.ursulin@linux.intel.com Signed-off-by: Christian König Stable-dep-of: 5a6c9a05e55c ("drm: Fix FD ownership check in drm_master_check_perm()") Signed-off-by: Sasha Levin

drm/amdgpu: don't allow userspace to create a doorbell BO

2023-08-11T18:48:07+00:00

We need the domains in amdgpu_drm.h for the kernel driver to manage the pool, but we don't want userspace using it until the code is ready. So reject for now. Acked-by: Felix Kuehling Signed-off-by: Alex Deucher

Merge tag 'amd-drm-next-6.6-2023-07-28' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

2023-08-04T09:10:18+00:00

amd-drm-next-6.6-2023-07-28: amdgpu: - Lots of checkpatch cleanups - GFX 9.4.3 updates - Add USB PD and IFWI flashing documentation - GPUVM updates - RAS fixes - DRR fixes - FAMS fixes - Virtual display fixes - Soft IH fixes - SMU13 fixes - Rework PSP firmware loading for other IPs - Kernel doc fixes - DCN 3.0.1 fixes - LTTPR fixes - DP MST fixes - DCN 3.1.6 fixes - SubVP fixes - Display bandwidth calculation fixes - VCN4 secure submission fixes - Allow building DC on RISC-V - Add visible FB info to bo_print_info - HBR3 fixes - Add PSP 14.0 support - GFX9 MCBP fix - GMC10 vmhub index fix - GMC11 vmhub index fix - Create a new doorbell manager - SR-IOV fixes amdkfd: - Cleanup CRIU dma-buf handling - Use KIQ to unmap HIQ - GFX 9.4.3 debugger updates - GFX 9.4.2 debugger fixes - Enable cooperative groups fof gfx11 - SVM fixes radeon: - Lots of checkpatch cleanups Merge conflicts: - drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c The switch to drm eu helpers in 8a206685d36f ("drm/amdgpu: use drm_exec for GEM and CSA handling v2") clashed with the cosmetic cleanups from 30953c4d000b ("drm/amdgpu: Fix style issues in amdgpu_gem.c"). I kept the former since the cleanup up code is gone. - drivers/gpu/drm/amd/amdgpu/atom.c. adf64e214280 ("drm/amd: Avoid reading the VBIOS part number twice") removed code that 992b8fe106ab ("drm/radeon: Replace all non-returning strlcpy with strscpy") polished. From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20230728214228.8102-1-alexander.deucher@amd.com [sima: some merge conflict wrangling as noted] Signed-off-by: Daniel Vetter

drm/amdgpu: Fix style issues in amdgpu_gem.c

2023-07-25T17:41:00+00:00

Fixes the following to align to linux coding style: WARNING: braces {} are not necessary for any arm of this statement WARNING: Missing a blank line after declarations ERROR: space prohibited before that close parenthesis ')' WARNING: unnecessary whitespace before a quoted newline WARNING: %LX is non-standard C, use %llX Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: use drm_exec for GEM and CSA handling v2

2023-07-12T12:14:36+00:00

Start using the new component here as well. v2: ignore duplicates to allow per VM BO mappings Signed-off-by: Christian König Acked-by: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20230711133122.3710-5-christian.koenig@amd.com

drm/amdgpu: remove unnecessary (void*) conversions

2023-06-09T14:40:12+00:00

No need cast (void*) to (struct amdgpu_device *). Signed-off-by: Su Hui Signed-off-by: Alex Deucher

drm/amdgpu: use xcp partition ID for amdgpu_gem

2023-06-09T14:36:43+00:00

Find xcp_id from amdgpu_fpriv, use it for amdgpu_gem_object_create. Signed-off-by: James Zhu Acked-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Store xcp partition id to amdgpu bo

2023-06-09T14:36:38+00:00

For memory accounting per compute partition and export drm amdgpu bo and then import to KFD, we need the xcp id to account the memory usage or find the KFD node of the original amdgpu bo to create the KFD bo on the correct adev KFD node. Set xcp_id_plus1 of amdgpu_bo_param to create bo and store xcp_id to amddgpu bo. Add helper macro to get the mem_id from adev and xcp_id. v2: squash in fix ("drm/amdgpu: Fix BO creation failure on GFX 9.4.3 dGPU") Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Add memory partition mem_id to amdgpu_bo

2023-06-09T14:00:00+00:00

Add mem_id_plus1 parameter to amdgpu_gem_object_create and pass it to amdgpu_bo_create. For dGPU mode allocation, mem_id is used by VRAM manager to get the memory partition fpfn, lpfn from xcp manager. For APU native mode allocation, mem_id is used to get NUMA node id from xcp manager, then pass to TTM as numa pool id to alloc memory from the specific NUMA node. mem_id -1 means for entire VRAM or any NUMA nodes. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm: Track clients by tgid and not tid

2023-03-15T13:03:00+00:00

Thread group id (aka pid from userspace point of view) is a more interesting thing to show as an owner of a DRM fd, so track and show that instead of the thread id. In the next patch we will make the owner updated post file descriptor handover, which will also be tgid based to avoid ping-pong when multiple threads access the fd. Signed-off-by: Tvrtko Ursulin Reviewed-by: Zack Rusin Reviewed-by: Christian König Signed-off-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20230314141904.1210824-2-tvrtko.ursulin@linux.intel.com