Commit 21b704d7 authored by James Zhu's avatar James Zhu Committed by Alex Deucher

drm/amdgpu/vcn: add shared memory restore after wake up from sleep.

VCN shared memory needs restore after wake up during S3 test.

v2: Allocate shared memory saved_bo at sw_init and free it in sw_fini.
Signed-off-by: default avatarJames Zhu <James.Zhu@amd.com>
Reviewed-by: default avatarFeifei Xu <Feifei.Xu@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 2a20e630
......@@ -56,7 +56,7 @@ static void amdgpu_vcn_idle_work_handler(struct work_struct *work);
int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
{
unsigned long bo_size;
unsigned long bo_size, fw_shared_bo_size;
const char *fw_name;
const struct common_firmware_header *hdr;
unsigned char fw_check;
......@@ -190,6 +190,9 @@ int amdgpu_vcn_sw_init(struct amdgpu_device *adev)
dev_err(adev->dev, "VCN %d (%d) failed to allocate firmware shared bo\n", i, r);
return r;
}
fw_shared_bo_size = amdgpu_bo_size(adev->vcn.inst[i].fw_shared_bo);
adev->vcn.inst[i].saved_shm_bo = kvmalloc(fw_shared_bo_size, GFP_KERNEL);
}
return 0;
......@@ -205,6 +208,7 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev)
if (adev->vcn.harvest_config & (1 << j))
continue;
kvfree(adev->vcn.inst[j].saved_shm_bo);
amdgpu_bo_free_kernel(&adev->vcn.inst[j].fw_shared_bo,
&adev->vcn.inst[j].fw_shared_gpu_addr,
(void **)&adev->vcn.inst[j].fw_shared_cpu_addr);
......@@ -254,6 +258,17 @@ int amdgpu_vcn_suspend(struct amdgpu_device *adev)
return -ENOMEM;
memcpy_fromio(adev->vcn.inst[i].saved_bo, ptr, size);
if (adev->vcn.inst[i].fw_shared_bo == NULL)
return 0;
if (!adev->vcn.inst[i].saved_shm_bo)
return -ENOMEM;
size = amdgpu_bo_size(adev->vcn.inst[i].fw_shared_bo);
ptr = adev->vcn.inst[i].fw_shared_cpu_addr;
memcpy_fromio(adev->vcn.inst[i].saved_shm_bo, ptr, size);
}
return 0;
}
......@@ -291,6 +306,17 @@ int amdgpu_vcn_resume(struct amdgpu_device *adev)
}
memset_io(ptr, 0, size);
}
if (adev->vcn.inst[i].fw_shared_bo == NULL)
return -EINVAL;
size = amdgpu_bo_size(adev->vcn.inst[i].fw_shared_bo);
ptr = adev->vcn.inst[i].fw_shared_cpu_addr;
if (adev->vcn.inst[i].saved_shm_bo != NULL)
memcpy_toio(ptr, adev->vcn.inst[i].saved_shm_bo, size);
else
memset_io(ptr, 0, size);
}
return 0;
}
......
......@@ -194,6 +194,7 @@ struct amdgpu_vcn_inst {
atomic_t dpg_enc_submission_cnt;
void *fw_shared_cpu_addr;
uint64_t fw_shared_gpu_addr;
void *saved_shm_bo;
};
struct amdgpu_vcn {
......
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