6.15-stable review patch. If anyone has any objections, please let me know.
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From: Jesse.zhang@amd.com Jesse.zhang@amd.com
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 alexander.deucher@amd.com Signed-off-by: Jesse Zhang Jesse.Zhang@amd.com Reviewed-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Stable-dep-of: 09b585592fa4 ("drm/amdgpu: Fix SDMA engine reset with logical instance ID") Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
--- 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 {