linux/drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c, branch v6.17

drm/amdgpu: Convert init_mem_ranges into common helpers

2025-06-24T14:04:16Z

They can be shared across multiple products Signed-off-by: Hawking Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: Convert query_memory_partition into common helpers

2025-06-24T14:04:09Z

The query_memory_partition does not need to remain as soc specific callbacks. They can be shared across multiple products Signed-off-by: Hawking Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: enable pdb0 for hibernation on SRIOV

2025-06-18T16:19:15Z

When switching to new GPU index after hibernation and then resume, VRAM offset of each VRAM BO will be changed, and the cached gpu addresses needed to updated. This is to enable pdb0 and switch to use pdb0-based virtual gpu address by default in amdgpu_bo_create_reserved(). since the virtual addresses do not change, this can avoid the need to update all cached gpu addresses all over the codebase. Signed-off-by: Emily Deng Signed-off-by: Samuel Zhang Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Disallow partition query during reset

2025-04-30T22:03:02Z

Reject queries to get current partition modes during reset. Also, don't accept sysfs interface requests to switch compute partition mode while in reset. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Reviewed-by: Asad Kamal Signed-off-by: Alex Deucher

drm/amdgpu: Increase KIQ invalidate_tlbs timeout

2025-04-07T19:18:30Z

KIQ invalidate_tlbs request has been seen to marginally exceed the configured 100 ms timeout on systems under load. All other KIQ requests in the driver use a 10 second timeout. Use a similar timeout implementation on the invalidate_tlbs path. v2: Poll once before msleep v3: Fix return value Signed-off-by: Jay Cornwall Cc: Kent Russell Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdgpu: Optimize VM invalidation engine allocation and synchronize GPU TLB flush

2025-03-21T16:16:35Z

- Modify the VM invalidation engine allocation logic to handle SDMA page rings. SDMA page rings now share the VM invalidation engine with SDMA gfx rings instead of allocating a separate engine. This change ensures efficient resource management and avoids the issue of insufficient VM invalidation engines. - Add synchronization for GPU TLB flush operations in gmc_v9_0.c. Use spin_lock and spin_unlock to ensure thread safety and prevent race conditions during TLB flush operations. This improves the stability and reliability of the driver, especially in multi-threaded environments. v2: replace the sdma ring check with a function `amdgpu_sdma_is_page_queue` to check if a ring is an SDMA page queue.(Lijo) v3: Add GC version check, only enabled on GC9.4.3/9.4.4/9.5.0 v4: Fix code style and add more detailed description (Christian) v5: Remove dependency on vm_inv_eng loop order, explicitly lookup shared inv_eng(Christian/Lijo) v6: Added search shared ring function amdgpu_sdma_get_shared_ring (Lijo) Suggested-by: Lijo Lazar Signed-off-by: Jesse Zhang Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: fix spelling typos

2025-03-05T15:37:13Z

Found some typos while exploring amdgpu code. Signed-off-by: Alexandre Demers Signed-off-by: Alex Deucher

drm/amdgpu: add RAS CPER ring buffer

2025-02-17T19:09:29Z

And initialize it, this is a pure software ring to store RAS CPER data. v2: change ring size to 0x100000 v2: update the initialization of count_dw of cper ring, it's dword variable v3: skip VM inv eng for cper v3: init/fini when aca enabled Signed-off-by: Tao Zhou Signed-off-by: Xiang Liu Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: Set noretry default for GC 9.5.0

2025-02-13T02:02:56Z

Set GC 9.5.0 noretry default as 1 for better performance. It can be changed by the administrator using amdgpu.noretry=0 or by the user using HSA_XNACK=1 environment variable. Signed-off-by: Amber Lin Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdgpu: add support for GC IP version 11.5.3

2025-02-13T02:02:55Z

This initializes GC IP version 11.5.3. Signed-off-by: Tim Huang Reviewed-by: Yifan Zhang Signed-off-by: Alex Deucher