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authorLeo Liu <leo.liu@amd.com>2016-04-04 10:55:43 -0400
committerAlex Deucher <alexander.deucher@amd.com>2016-04-04 17:01:00 -0400
commitd23be4e34c2bcbcb37cba10bf0f2b9f5c23ac90e (patch)
tree679a2cf230b49368c8414de3692b3f0b131bfc0f /drivers
parent3f99dd814a6fdf9e06562f210b8e7702db9e9158 (diff)
downloadlinux-d23be4e34c2bcbcb37cba10bf0f2b9f5c23ac90e.tar.bz2
drm/amdgpu: save and restore the firwmware cache part when suspend resume
Signed-off-by: Leo Liu <leo.liu@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
index 4b8ca3515fbc..338da80006b6 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c
@@ -243,7 +243,6 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
{
unsigned size;
void *ptr;
- const struct common_firmware_header *hdr;
int i;
if (adev->uvd.vcpu_bo == NULL)
@@ -256,13 +255,8 @@ int amdgpu_uvd_suspend(struct amdgpu_device *adev)
if (i == AMDGPU_MAX_UVD_HANDLES)
return 0;
- hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
-
size = amdgpu_bo_size(adev->uvd.vcpu_bo);
- size -= le32_to_cpu(hdr->ucode_size_bytes);
-
ptr = adev->uvd.cpu_addr;
- ptr += le32_to_cpu(hdr->ucode_size_bytes);
adev->uvd.saved_bo = kmalloc(size, GFP_KERNEL);
if (!adev->uvd.saved_bo)
@@ -277,28 +271,29 @@ int amdgpu_uvd_resume(struct amdgpu_device *adev)
{
unsigned size;
void *ptr;
- const struct common_firmware_header *hdr;
- unsigned offset;
if (adev->uvd.vcpu_bo == NULL)
return -EINVAL;
- hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
- offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
- memcpy(adev->uvd.cpu_addr, (adev->uvd.fw->data) + offset,
- (adev->uvd.fw->size) - offset);
-
size = amdgpu_bo_size(adev->uvd.vcpu_bo);
- size -= le32_to_cpu(hdr->ucode_size_bytes);
ptr = adev->uvd.cpu_addr;
- ptr += le32_to_cpu(hdr->ucode_size_bytes);
if (adev->uvd.saved_bo != NULL) {
memcpy(ptr, adev->uvd.saved_bo, size);
kfree(adev->uvd.saved_bo);
adev->uvd.saved_bo = NULL;
- } else
+ } else {
+ const struct common_firmware_header *hdr;
+ unsigned offset;
+
+ hdr = (const struct common_firmware_header *)adev->uvd.fw->data;
+ offset = le32_to_cpu(hdr->ucode_array_offset_bytes);
+ memcpy(adev->uvd.cpu_addr, (adev->uvd.fw->data) + offset,
+ (adev->uvd.fw->size) - offset);
+ size -= le32_to_cpu(hdr->ucode_size_bytes);
+ ptr += le32_to_cpu(hdr->ucode_size_bytes);
memset(ptr, 0, size);
+ }
return 0;
}