kernel/linux.git/drivers/gpu/drm/amd/include/kgd_kfd_interface.h, branch v6.12.80

drm/amdkfd: Update logic for CU occupancy calculations

2024-09-25T16:56:00+00:00

Currently, the code uses the IH_VMID_X_LUT register to map a queue's vmid to the corresponding PASID. This logic is racy since CP can update the VMID-PASID mapping anytime especially when there are more processes than number of vmids. Update the logic to calculate CU occupancy by matching doorbell offset of the queue with valid wave counts against the process's queues. Signed-off-by: Mukul Joshi Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: support per-queue reset on gfx9

2024-08-06T14:43:18+00:00

Support per-queue reset for GFX9. The recommendation is for the driver to target reset the HW queue via a SPI MMIO register write. Since this requires pipe and HW queue info and MEC FW is limited to doorbell reports of hung queues after an unmap failure, scan the HW queue slots defined by SET_RESOURCES first to identify the user queue candidates to reset. Only signal reset events to processes that have had a queue reset. If queue reset fails, fall back to GPU reset. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: drop struct kfd_cu_info

2023-10-03T19:41:13+00:00

I think this was an abstraction back from when kfd supported both radeon and amdgpu. Since we just support amdgpu now, there is no more need for this and we can use the amdgpu structures directly. This also avoids having the kfd_cu_info structures on the stack when inlining which can blow up the stack. Cc: Arnd Bergmann Acked-by: Arnd Bergmann Reviewed-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Rename KGD_MAX_QUEUES to AMDGPU_MAX_QUEUES

2023-09-11T21:15:41+00:00

Rename KGD_MAX_QUEUES to AMDGPU_MAX_QUEUES to conform with the naming convention followed in amdgpu_gfx.h. No functional change. Signed-off-by: Mukul Joshi Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Store CU info from all XCCs for GFX v9.4.3

2023-09-11T21:10:19+00:00

Currently, we store CU info only for a single XCC assuming that it is the same for all XCCs. However, that may not be true. As a result, store CU info for all XCCs. This info is later used for CU masking. Signed-off-by: Mukul Joshi Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Fix reg offset for setting CWSR grace period

2023-09-11T21:07:33+00:00

This patch fixes the case where the code currently passes absolute register address and not the reg offset, which HWS expects, when sending the PM4 packet to set/update CWSR grace period. Additionally, cleanup the signature of build_grace_period_packet_info function as it no longer needs the inst parameter. Signed-off-by: Mukul Joshi Reviewed-by: Jonathan Kim Signed-off-by: Alex Deucher

drm/amdkfd: add kfd2kgd debugger callbacks for GC v9.4.3

2023-07-12T14:58:01+00:00

Implement the similarities as GC v9.4.2, and the difference for GC v9.4.3 HW spec, i.e. xcc instance. Signed-off-by: Jonathan Kim Signed-off-by: Eric Huang Reviewed-by: Jonathan Kim Signed-off-by: Alex Deucher

drm/amdgpu: add kgd hw debug mode setting interface

2023-06-09T16:34:53+00:00

Introduce the require KGD debug calls that will execute hardware debug mode setting. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Add XCC instance to kgd2kfd interface (v3)

2023-06-09T13:42:43+00:00

Gfx 9 starts to have multiple XCC instances in one device. Add instance parameter to kgd2kfd functions where XCC instance was hard coded as 0. Also, update code to pass the correct instance number when running on a multi-XCC setup. v2: introduce the XCC instance to gfx v11 (Morris) v3: rebase (Alex) Signed-off-by: Amber Lin Signed-off-by: Mukul Joshi Reviewed-by: Felix Kuehling Tested-by: Amber Lin Signed-off-by: Morris Zhang Signed-off-by: Alex Deucher

drm/amdkfd: Fix type of reset_type parameter in hqd_destroy() callback

2022-10-19T02:13:12+00:00

When booting a kernel compiled with CONFIG_CFI_CLANG on a machine with an RX 6700 XT, there is a CFI failure in kfd_destroy_mqd_cp(): [ 12.894543] CFI failure at kfd_destroy_mqd_cp+0x2a/0x40 [amdgpu] (target: hqd_destroy_v10_3+0x0/0x260 [amdgpu]; expected type: 0x8594d794) Clang's kernel Control Flow Integrity (kCFI) makes sure that all indirect call targets have a type that exactly matches the function pointer prototype. In this case, hqd_destroy()'s third parameter, reset_type, should have a type of 'uint32_t' but every implementation of this callback has a third parameter type of 'enum kfd_preempt_type'. Update the function pointer prototype to match reality so that there is no more CFI violation. Link: https://github.com/ClangBuiltLinux/linux/issues/1738 Signed-off-by: Nathan Chancellor Signed-off-by: Alex Deucher