kernel/linux.git/Documentation/gpu/amdgpu/driver-core.rst, branch v6.12.80

drm/amd: Introduce additional IPS debug flags

2024-08-27T21:51:32+00:00

[Why] Idle power states (IPS) describe levels of power-gating within DCN. DM and DC is responsible for ensuring that we are out of IPS before any DCN programming happens. Any DCN programming while we're in IPS leads to undefined behavior (mostly hangs). Because IPS intersects with all display features, the ability to disable IPS by default while ironing out the known issues is desired. However, disabing it completely will cause important features such as s0ix entry to fail. Therefore, more granular IPS debug flags are desired. [How] Extend the dc debug mask bits to include the available list of IPS debug flags. All the flags should work as documented, with the exception of IPS_DISABLE_DYNAMIC. It requires dm changes which will be done in later changes. v2: enable docs and fix docstring format Signed-off-by: Leo Li Reviewed-by: Aurabindo Pillai Signed-off-by: Alex Deucher

drm/amdgpu: update docum. filename following rename

2022-11-29T16:03:39+00:00

Fix documentation build errors for amdgpu: correct the filename. Error: Cannot open file ../drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Error: Cannot open file ../drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c Error: Cannot open file ../drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -sphinx-version 5.3.0 -function MMU Notifier ../drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c' failed with return code 1 WARNING: kernel-doc '../scripts/kernel-doc -rst -enable-lineno -sphinx-version 5.3.0 -internal ../drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c' failed with return code 2 Fixes: d9483ecd327b ("drm/amdgpu: rename the files for HMM handling") Signed-off-by: Randy Dunlap Cc: Christian König Cc: Alex Deucher Cc: Felix Kuehling Cc: David Airlie Cc: Daniel Vetter Cc: Jonathan Corbet Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Alex Deucher

Documentation/gpu: include description of some of the GC microcontrollers

2021-12-14T21:10:46+00:00

This is Alex' description from the "Looking for clarifications around gfx/kcq/kiq" thread, edited to fit as ReST. Original text: https://www.spinics.net/lists/amd-gfx/msg71383.html Originally-by: Alex Deucher Signed-off-by: Yann Dirson Acked-by: Harry Wentland Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

Documentation/gpu: include description of AMDGPU hardware structure

2021-12-14T21:10:41+00:00

This describes in broad lines the how an AMD GPU is organized, in terms of hardware blocks. This is Alex' description from the "gpu block diagram" thread, edited to fit as ReST. Original text: https://www.spinics.net/lists/amd-gfx/msg71543.html Originally-by: Alex Deucher Signed-off-by: Yann Dirson Acked-by: Harry Wentland Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

Documentation/gpu: split amdgpu/index for readability

2021-12-13T21:34:27+00:00

This starts to make the formated index much more manageable to the reader. Reviewed-by: Rodrigo Siqueira Signed-off-by: Yann Dirson Signed-off-by: Alex Deucher