drm/radeon: fix VCE suspend/resume

Signed-off-by: Christian König <christian.koenig@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index efad567..40ab8a2 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1634,7 +1634,6 @@ int radeon_uvd_send_upll_ctlreq(struct radeon_device *rdev,
 
 struct radeon_vce {
        struct radeon_bo        *vcpu_bo;
-       void                    *cpu_addr;
        uint64_t                gpu_addr;
        unsigned                fw_version;
        unsigned                fb_version;

diff --git a/drivers/gpu/drm/radeon/radeon_vce.c b/drivers/gpu/drm/radeon/radeon_vce.c
index d130432..39ec7d8 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_vce.c
+++ b/drivers/gpu/drm/radeon/radeon_vce.c
@@ -119,7 +119,7 @@ int radeon_vce_init(struct radeon_device *rdev)
        if (rdev->vce.fw_version != ((40 << 24) | (2 << 16) | (2 << 8)))
                return -EINVAL;
 
-       /* load firmware into VRAM */
+       /* allocate firmware, stack and heap BO */
 
        size = RADEON_GPU_PAGE_ALIGN(rdev->vce_fw->size) +
               RADEON_VCE_STACK_SIZE + RADEON_VCE_HEAP_SIZE;
@@ -130,16 +130,21 @@ int radeon_vce_init(struct radeon_device *rdev)
                return r;
        }
 
-       r = radeon_vce_resume(rdev);
-       if (r)
+       r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
+       if (r) {
+               radeon_bo_unref(&rdev->vce.vcpu_bo);
+               dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
                return r;
+       }
 
-       memset(rdev->vce.cpu_addr, 0, size);
-       memcpy(rdev->vce.cpu_addr, rdev->vce_fw->data, rdev->vce_fw->size);
-
-       r = radeon_vce_suspend(rdev);
-       if (r)
+       r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
+                         &rdev->vce.gpu_addr);
+       radeon_bo_unreserve(rdev->vce.vcpu_bo);
+       if (r) {
+               radeon_bo_unref(&rdev->vce.vcpu_bo);
+               dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r);
                return r;
+       }
 
        for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i) {
                atomic_set(&rdev->vce.handles[i], 0);
@@ -158,8 +163,12 @@ int radeon_vce_init(struct radeon_device *rdev)
  */
 void radeon_vce_fini(struct radeon_device *rdev)
 {
-       radeon_vce_suspend(rdev);
+       if (rdev->vce.vcpu_bo == NULL)
+               return;
+
        radeon_bo_unref(&rdev->vce.vcpu_bo);
+
+       release_firmware(rdev->vce_fw);
 }
 
 /**
@@ -167,22 +176,23 @@ void radeon_vce_fini(struct radeon_device *rdev)
  *
  * @rdev: radeon_device pointer
  *
- * TODO: Test VCE suspend/resume
  */
 int radeon_vce_suspend(struct radeon_device *rdev)
 {
-       int r;
+       int i;
 
        if (rdev->vce.vcpu_bo == NULL)
                return 0;
 
-       r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
-       if (!r) {
-               radeon_bo_kunmap(rdev->vce.vcpu_bo);
-               radeon_bo_unpin(rdev->vce.vcpu_bo);
-               radeon_bo_unreserve(rdev->vce.vcpu_bo);
-       }
-       return r;
+       for (i = 0; i < RADEON_MAX_VCE_HANDLES; ++i)
+               if (atomic_read(&rdev->vce.handles[i]))
+                       break;
+
+       if (i == RADEON_MAX_VCE_HANDLES)
+               return 0;
+
+       /* TODO: suspending running encoding sessions isn't supported */
+       return -EINVAL;
 }
 
 /**
@@ -190,10 +200,10 @@ int radeon_vce_suspend(struct radeon_device *rdev)
  *
  * @rdev: radeon_device pointer
  *
- * TODO: Test VCE suspend/resume
  */
 int radeon_vce_resume(struct radeon_device *rdev)
 {
+       void *cpu_addr;
        int r;
 
        if (rdev->vce.vcpu_bo == NULL)
@@ -201,26 +211,21 @@ int radeon_vce_resume(struct radeon_device *rdev)
 
        r = radeon_bo_reserve(rdev->vce.vcpu_bo, false);
        if (r) {
-               radeon_bo_unref(&rdev->vce.vcpu_bo);
                dev_err(rdev->dev, "(%d) failed to reserve VCE bo\n", r);
                return r;
        }
 
-       r = radeon_bo_pin(rdev->vce.vcpu_bo, RADEON_GEM_DOMAIN_VRAM,
-                         &rdev->vce.gpu_addr);
+       r = radeon_bo_kmap(rdev->vce.vcpu_bo, &cpu_addr);
        if (r) {
                radeon_bo_unreserve(rdev->vce.vcpu_bo);
-               radeon_bo_unref(&rdev->vce.vcpu_bo);
-               dev_err(rdev->dev, "(%d) VCE bo pin failed\n", r);
-               return r;
-       }
-
-       r = radeon_bo_kmap(rdev->vce.vcpu_bo, &rdev->vce.cpu_addr);
-       if (r) {
                dev_err(rdev->dev, "(%d) VCE map failed\n", r);
                return r;
        }
 
+       memcpy(cpu_addr, rdev->vce_fw->data, rdev->vce_fw->size);
+
+       radeon_bo_kunmap(rdev->vce.vcpu_bo);
+
        radeon_bo_unreserve(rdev->vce.vcpu_bo);
 
        return 0;