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drm/amdgpu/VCN: add buffer for indirect SRAM usage 

This will be used later for indirect SRAM mode

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: James Zhu <James.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Liu 2019-05-24 14:07:41 -04:00 committed by Alex Deucher
parent 1768908ec5
commit a77b9fdf9a
2 changed files with 22 additions and 0 deletions
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16
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c
View File

@ -137,6 +137,16 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
return r;
}
if (adev->vcn.indirect_sram) {
r = amdgpu_bo_create_kernel(adev, 64 * 2 * 4, PAGE_SIZE,
AMDGPU_GEM_DOMAIN_VRAM, &adev->vcn.dpg_sram_bo,
&adev->vcn.dpg_sram_gpu_addr, &adev->vcn.dpg_sram_cpu_addr);
if (r) {
dev_err(adev->dev, "(%d) failed to allocate DPG bo\n", r);
return r;
}
}
return 0;
}
@ -146,6 +156,12 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
kvfree(adev->vcn.saved_bo);
if (adev->vcn.indirect_sram) {
amdgpu_bo_free_kernel(&adev->vcn.dpg_sram_bo,
&adev->vcn.dpg_sram_gpu_addr,
(void **)&adev->vcn.dpg_sram_cpu_addr);
}
amdgpu_bo_free_kernel(&adev->vcn.vcpu_bo,
&adev->vcn.gpu_addr,
(void **)&adev->vcn.cpu_addr);

6
drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.h
View File

@ -164,6 +164,12 @@ struct amdgpu_vcn {
struct amdgpu_vcn_reg internal, external;
int (*pause_dpg_mode)(struct amdgpu_device *adev,
struct dpg_pause_state *new_state);
bool indirect_sram;
struct amdgpu_bo *dpg_sram_bo;
void *dpg_sram_cpu_addr;
uint64_t dpg_sram_gpu_addr;
uint32_t *dpg_sram_curr_addr;
};
int amdgpu_vcn_sw_init(struct amdgpu_device *adev);