From 76b71e89911b18d111bad09705a4dce3ec0ca2c3 Mon Sep 17 00:00:00 2001 From: "Jesse.zhang@amd.com" Date: Fri, 11 Apr 2025 13:01:19 +0800 Subject: [PATCH] drm/amdgpu: Add the new sdma function pointers for amdgpu_sdma.h commit 29891842154d7ebca97a94b0d5aaae94e560f61c upstream. This patch introduces new function pointers in the amdgpu_sdma structure to handle queue stop, start and soft reset operations. These will replace the older callback mechanism. The new functions are: - stop_kernel_queue: Stops a specific SDMA queue - start_kernel_queue: Starts/Restores a specific SDMA queue - soft_reset_kernel_queue: Performs soft reset on a specific SDMA queue v2: Update stop_queue/start_queue function paramters to use ring pointer instead of device/instance(Chritian) v3: move stop_queue/start_queue to struct amdgpu_sdma_instance and rename them. (Alex) v4: rework the ordering a bit (Alex) Suggested-by: Alex Deucher Signed-off-by: Jesse Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher Stable-dep-of: 09b585592fa4 ("drm/amdgpu: Fix SDMA engine reset with logical instance ID") Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index 47d56fd0589fc..bf83d66462380 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -50,6 +50,12 @@ enum amdgpu_sdma_irq { #define NUM_SDMA(x) hweight32(x) +struct amdgpu_sdma_funcs { + int (*stop_kernel_queue)(struct amdgpu_ring *ring); + int (*start_kernel_queue)(struct amdgpu_ring *ring); + int (*soft_reset_kernel_queue)(struct amdgpu_device *adev, u32 instance_id); +}; + struct amdgpu_sdma_instance { /* SDMA firmware */ const struct firmware *fw; @@ -68,7 +74,7 @@ struct amdgpu_sdma_instance { /* track guilty state of GFX and PAGE queues */ bool gfx_guilty; bool page_guilty; - + const struct amdgpu_sdma_funcs *funcs; }; enum amdgpu_sdma_ras_memory_id { -- 2.47.3