kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h, branch v6.12.81

drm/amdgpu: support for gc_info table v1.3

2024-08-23T14:54:57+00:00

Add gc_info table v1.3 for IP discovery. Signed-off-by: Likun Gao Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Implement Enforce Isolation Handler for KGD/KFD serialization

2024-08-21T02:07:35+00:00

This commit introduces the Enforce Isolation Handler designed to enforce shader isolation on AMD GPUs, which helps to prevent data leakage between different processes. The handler counts the number of emitted fences for each GFX and compute ring. If there are any fences, it schedules the `enforce_isolation_work` to be run after a delay of `GFX_SLICE_PERIOD`. If there are no fences, it signals the Kernel Fusion Driver (KFD) to resume the runqueue. The function is synchronized using the `enforce_isolation_mutex`. This commit also introduces a reference count mechanism (kfd_sch_req_count) to keep track of the number of requests to enable the KFD scheduler. When a request to enable the KFD scheduler is made, the reference count is decremented. When the reference count reaches zero, a delayed work is scheduled to enforce isolation after a delay of GFX_SLICE_PERIOD. When a request to disable the KFD scheduler is made, the function first checks if the reference count is zero. If it is, it cancels the delayed work for enforcing isolation and checks if the KFD scheduler is active. If the KFD scheduler is active, it sends a request to stop the KFD scheduler and sets the KFD scheduler state to inactive. Then, it increments the reference count. The function is synchronized using the kfd_sch_mutex to ensure that the KFD scheduler state and reference count are updated atomically. Cc: Christian König Cc: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Srinivasan Shanmugam Suggested-by: Christian König Suggested-by: Alex Deucher

drm/amdgpu: Add enforce_isolation sysfs attribute

2024-08-21T02:06:52+00:00

This commit adds a new sysfs attribute 'enforce_isolation' to control the 'enforce_isolation' setting per GPU. The attribute can be read and written, and accepts values 0 (disabled) and 1 (enabled). When 'enforce_isolation' is enabled, reserved VMIDs are allocated for each ring. When it's disabled, the reserved VMIDs are freed. The set function locks a mutex before changing the 'enforce_isolation' flag and the VMIDs, and unlocks it afterwards. This ensures that these operations are atomic and prevents race conditions and other concurrency issues. Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Suggested-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Add infrastructure for Cleaner Shader feature

2024-08-16T18:27:34+00:00

The cleaner shader is used by the CP firmware to clean LDS and GPRs between processes on the CUs. This adds an internal API for GFX IP code to allocate and initialize the cleaner shader. Cc: Christian König Cc: Alex Deucher Signed-off-by: Alex Deucher Signed-off-by: Srinivasan Shanmugam Suggested-by: Christian König

drm/amdgpu/gfx11: add a mutex for the gfx semaphore

2024-08-16T18:24:33+00:00

This will be used in more places in the future so add a mutex. Acked-by: Vitaly Prosyak Signed-off-by: Alex Deucher

drm/amdgpu/gfx: add a new kiq_pm4_funcs callback for reset_hw_queue

2024-08-16T18:18:25+00:00

Add reset_hw_queue in kiq_pm4_funcs callbacks. Acked-by: Vitaly Prosyak Signed-off-by: Jiadong Zhu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu/gfx: add bad opcode interrupt

2024-07-23T21:45:45+00:00

Add the irq source for bad opcodes. Acked-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Initialize VF partition mode

2024-07-10T14:12:28+00:00

For SOCs with GFX v9.4.3, a VF may have multiple compute partitions. Fetch the partition information during init and initialize partition nodes. There is no support to switch partition mode in VF mode, hence disable the same. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: rename ip_dump_cp_queues to compute queues

2024-06-05T15:02:03+00:00

Rename the variable ip_dump_cp_queues to ip_dump_compute_queue as it represent compute queues. Reviewed-by: Alex Deucher Signed-off-by: Sunil Khatri Signed-off-by: Alex Deucher

drm/amdgpu: add gfx queue support of gfx10 in ipdump

2024-05-23T19:13:13+00:00

Add gfx queue register for all instances in devcoredump for gfx10. Reviewed-by: Alex Deucher Signed-off-by: Sunil Khatri Signed-off-by: Alex Deucher