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drm/amdgpu: add saved_bo to save vce 4.0 context when suspend

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We are using PSP to resume firmware after suspend, and it is
resumed at where it got suspended, so we'd better save the
the context.

Signed-off-by: Leo Liu <leo.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Leo Liu 2017-05-31 14:25:54 -04:00 committed by Alex Deucher
parent 78b3c83983
commit a107ebf61e
2 changed files with 38 additions and 8 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h
View File

@ -34,6 +34,7 @@ struct amdgpu_vce {
struct amdgpu_bo *vcpu_bo;
uint64_t gpu_addr;
void *cpu_addr;
void *saved_bo;
unsigned fw_version;
unsigned fb_version;
atomic_t handles[AMDGPU_MAX_VCE_HANDLES];

45
drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
View File

@ -419,15 +419,19 @@ static int vce_v4_0_sw_init(void *handle)
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
const struct common_firmware_header *hdr;
unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
adev->vce.saved_bo = kmalloc(size, GFP_KERNEL);
if (!adev->vce.saved_bo)
return -ENOMEM;
hdr = (const struct common_firmware_header *)adev->vce.fw->data;
adev->firmware.ucode[AMDGPU_UCODE_ID_VCE].ucode_id = AMDGPU_UCODE_ID_VCE;
adev->firmware.ucode[AMDGPU_UCODE_ID_VCE].fw = adev->vce.fw;
adev->firmware.fw_size +=
ALIGN(le32_to_cpu(hdr->ucode_size_bytes), PAGE_SIZE);
DRM_INFO("PSP loading VCE firmware\n");
}
if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
} else {
r = amdgpu_vce_resume(adev);
if (r)
return r;
@ -466,6 +470,11 @@ static int vce_v4_0_sw_fini(void *handle)
/* free MM table */
amdgpu_virt_free_mm_table(adev);
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
kfree(adev->vce.saved_bo);
adev->vce.saved_bo = NULL;
}
r = amdgpu_vce_suspend(adev);
if (r)
return r;
@ -522,8 +531,18 @@ static int vce_v4_0_hw_fini(void *handle)
static int vce_v4_0_suspend(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int r;
if (adev->vce.vcpu_bo == NULL)
return 0;
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
void *ptr = adev->vce.cpu_addr;
memcpy_fromio(adev->vce.saved_bo, ptr, size);
}
r = vce_v4_0_hw_fini(adev);
if (r)
@ -534,12 +553,22 @@ static int vce_v4_0_suspend(void *handle)
static int vce_v4_0_resume(void *handle)
{
int r;
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
int r;
r = amdgpu_vce_resume(adev);
if (r)
return r;
if (adev->vce.vcpu_bo == NULL)
return -EINVAL;
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {
unsigned size = amdgpu_bo_size(adev->vce.vcpu_bo);
void *ptr = adev->vce.cpu_addr;
memcpy_toio(ptr, adev->vce.saved_bo, size);
} else {
r = amdgpu_vce_resume(adev);
if (r)
return r;
}
return vce_v4_0_hw_init(adev);
}