Add a helper function for counting the number of open stream handles.
v2: fix copy-pasta in comments and whitespace error
v3: make function static since it's only used in radeon_uvd.c
at the moment
v4: make non-static again for future changes
v5: make static again for new rework of dpm uvd changes
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon.h | 1 +
drivers/gpu/drm/radeon/radeon_uvd.c | 35 +++++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index a6da0db..23dc0c0 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1441,6 +1441,7 @@ struct radeon_uvd {
void *saved_bo;
atomic_t handles[RADEON_MAX_UVD_HANDLES];
struct drm_file *filp[RADEON_MAX_UVD_HANDLES];
+ unsigned img_size[RADEON_MAX_UVD_HANDLES];
struct delayed_work idle_work;
};
diff --git a/drivers/gpu/drm/radeon/radeon_uvd.c b/drivers/gpu/drm/radeon/radeon_uvd.c
index b79f4f5..2a4cff1 100644
--- a/drivers/gpu/drm/radeon/radeon_uvd.c
+++ b/drivers/gpu/drm/radeon/radeon_uvd.c
@@ -147,6 +147,7 @@ int radeon_uvd_init(struct radeon_device *rdev)
for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
atomic_set(&rdev->uvd.handles[i], 0);
rdev->uvd.filp[i] = NULL;
+ rdev->uvd.img_size[i] = 0;
}
return 0;
@@ -347,6 +348,7 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
unsigned offset, unsigned buf_sizes[])
{
int32_t *msg, msg_type, handle;
+ unsigned img_size = 0;
void *ptr;
int i, r;
@@ -383,6 +385,8 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
if (msg_type == 1) {
/* it's a decode msg, calc buffer sizes */
r = radeon_uvd_cs_msg_decode(msg, buf_sizes);
+ /* calc image size (width * height) */
+ img_size = msg[6] * msg[7];
radeon_bo_kunmap(bo);
if (r)
return r;
@@ -394,6 +398,8 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
radeon_bo_kunmap(bo);
return 0;
} else {
+ /* it's a create msg, calc image size (width * height) */
+ img_size = msg[7] * msg[8];
radeon_bo_kunmap(bo);
if (msg_type != 0) {
@@ -414,6 +420,7 @@ static int radeon_uvd_cs_msg(struct radeon_cs_parser *p, struct radeon_bo *bo,
for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
if (!atomic_cmpxchg(&p->rdev->uvd.handles[i], 0, handle)) {
p->rdev->uvd.filp[i] = p->filp;
+ p->rdev->uvd.img_size[i] = img_size;
return 0;
}
}
@@ -733,6 +740,34 @@ int radeon_uvd_get_destroy_msg(struct radeon_device *rdev, int ring,
return radeon_uvd_send_msg(rdev, ring, bo, fence);
}
+/**
+ * radeon_uvd_count_handles - count number of open streams
+ *
+ * @rdev: radeon_device pointer
+ * @sd: number of SD streams
+ * @hd: number of HD streams
+ *
+ * Count the number of open SD/HD streams as a hint for power mangement
+ */
+static void radeon_uvd_count_handles(struct radeon_device *rdev,
+ unsigned *sd, unsigned *hd)
+{
+ unsigned i;
+
+ *sd = 0;
+ *hd = 0;
+
+ for (i = 0; i < RADEON_MAX_UVD_HANDLES; ++i) {
+ if (!atomic_read(&rdev->uvd.handles[i]))
+ continue;
+
+ if (rdev->uvd.img_size[i] >= 720*576)
+ ++(*hd);
+ else
+ ++(*sd);
+ }
+}
+
static void radeon_uvd_idle_work_handler(struct work_struct *work)
{
struct radeon_device *rdev =
--
1.8.3.1
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