linux/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c, branch v6.3

drm/ttm: remove ttm_bo_(un)lock_delayed_workqueue

2022-12-06T09:28:12Z

Those functions never worked correctly since it is still perfectly possible that a buffer object is released and the background worker restarted even after calling them. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Reviewed-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/20221125102137.1801-2-christian.koenig@amd.com

drm/amdgpu: clarify DC checks

2022-11-15T16:51:45Z

There are several places where we don't want to check if a particular asic could support DC, but rather, if DC is enabled. Set a flag if DC is enabled and check for that rather than if a device supports DC or not. Acked-by: Christian König Signed-off-by: Alex Deucher

Revert "drm/amdgpu: add debugfs amdgpu_reset_level"

2022-10-19T02:08:25Z

This reverts commit 5bd8d53f6fa53eab5433698d1362dae2aa53c1cc. This commit breaks the reset logic for aldebaran, revert it for now. Will move the mask inside the reset handler. Fixes: 5bd8d53f6fa53e ("drm/amdgpu: add debugfs amdgpu_reset_level") Signed-off-by: Victor Zhao Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amd: Add detailed GFXOFF stats to debugfs

2022-08-16T22:17:31Z

Add debugfs interface to log GFXOFF statistics: - Read amdgpu_gfxoff_count to get the total GFXOFF entry count at the time of query since system power-up - Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop. Read it to get average GFXOFF residency % multiplied by 100 during the last logging interval. Both features are designed to be keep the values persistent between suspends. Signed-off-by: André Almeida Signed-off-by: Alex Deucher

drm/amdgpu: add debugfs amdgpu_reset_level

2022-08-16T22:14:31Z

Introduce amdgpu_reset_level debugfs in order to help debug and test specific type of reset. Also helps blocking unwanted type of resets. By default, mode2 reset will not be enabled v2: make this debugfs in adev and use debugfs_create_u32 Signed-off-by: Victor Zhao Acked-by: Andrey Grodzovsky Signed-off-by: Alex Deucher

drm/amdgpu: double free error and freeing uninitialized null pointer

2022-08-10T19:41:23Z

Fix a double free and an uninitialized pointer read error. Both tmp and new are pointing at same address and both are freed which leads to double free. Adding a check to verify if new and tmp are free in the error_free label fixes the double free issue. new is not initialized to null which also leads to a free on an uninitialized pointer. Reviewed-by: André Almeida Suggested by: S. Amaranath Signed-off-by: Sebin Sebastian Signed-off-by: Alex Deucher

drm/amd/debugfs: Expose GFXOFF state to userspace

2022-07-25T13:31:02Z

GFXOFF has two different "state" values: one to define if the GPU is allowed/disallowed to enter GFXOFF, usually called state; and another one to define if currently GFXOFF is being used, usually called status. Even when GFXOFF is allowed, GPU firmware can decide to not used it accordingly to the GPU load. Userspace can allow/disallow GPUs to enter into GFXOFF via debugfs. The kernel maintains a counter of requests for GFXOFF (gfx_off_req_count) that should be decreased to allow GFXOFF and increased to disallow. The issue with this interface is that userspace can't be sure if GFXOFF is currently allowed. Even by checking amdgpu_gfxoff file, one might get an ambiguous 2, that means that GPU is currently out of GFXOFF, but that can be either because it's currently disallowed or because it's allowed but given the current GPU load it's enabled. Then, userspace needs to rely on the fact that GFXOFF is enabled by default on boot and to track this information. To make userspace life easier and GFXOFF more reliable, return the current state of GFXOFF to userspace when reading amdgpu_gfxoff with the same semantics of writing: 0 means not allowed, not 0 means allowed. Expose the current status of GFXOFF through a new file, amdgpu_gfxoff_status. Signed-off-by: André Almeida Signed-off-by: Alex Deucher

drm/amdpgu/debugfs: Simplify some exit paths

2022-07-05T20:18:14Z

To avoid code repetition, unify the function exit path when possible. No functional changes. Acked-by: Christian König Signed-off-by: André Almeida Signed-off-by: Alex Deucher

drm/amdgpu: save the reset dump register value for devcoredump

2022-06-06T18:41:12Z

Allocate memory for register value and use the same values for devcoredump. v1 -> v2: Change krealloc_array() to kmalloc_array() v2 -> v3: Fix alignment Signed-off-by: Somalapuram Amaranath Reviewed-by: Shashank Sharma Signed-off-by: Alex Deucher

drm/amdgpu: Add debugfs TA load/unload/invoke support

2022-04-21T19:58:22Z

v1: Add debugfs support to load/unload/invoke TA in runtime. v2: 1. Update some variables to static. 2. Use PAGE_ALIGN to calculate shared buf size directly. 3. Remove fp check. 4. Update debugfs from read to write. Signed-off-by: John Clements Signed-off-by: Candice Li Reviewed-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher