[PATCH v2 03/34] drm/drm_property: make replace_property_blob_from_id a DRM helper
Melissa Wen
mwen at igalia.com
Thu Aug 10 16:02:43 UTC 2023
Place it in drm_property where drm_property_replace_blob and
drm_property_lookup_blob live. Then we can use the DRM helper for
driver-specific KMS properties too.
Reviewed-by: Harry Wentland <harry.wentland at amd.com>
Reviewed-by: Liviu Dudau <liviu.dudau at arm.com>
Signed-off-by: Melissa Wen <mwen at igalia.com>
---
drivers/gpu/drm/arm/malidp_crtc.c | 2 +-
drivers/gpu/drm/drm_atomic_uapi.c | 43 ++++-----------------------
drivers/gpu/drm/drm_property.c | 49 +++++++++++++++++++++++++++++++
include/drm/drm_property.h | 6 ++++
4 files changed, 61 insertions(+), 39 deletions(-)
diff --git a/drivers/gpu/drm/arm/malidp_crtc.c b/drivers/gpu/drm/arm/malidp_crtc.c
index dc01c43f6193..d72c22dcf685 100644
--- a/drivers/gpu/drm/arm/malidp_crtc.c
+++ b/drivers/gpu/drm/arm/malidp_crtc.c
@@ -221,7 +221,7 @@ static int malidp_crtc_atomic_check_ctm(struct drm_crtc *crtc,
/*
* The size of the ctm is checked in
- * drm_atomic_replace_property_blob_from_id.
+ * drm_property_replace_blob_from_id.
*/
ctm = (struct drm_color_ctm *)state->ctm->data;
for (i = 0; i < ARRAY_SIZE(ctm->matrix); ++i) {
diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c
index d867e7f9f2cd..a6a9ee5086dd 100644
--- a/drivers/gpu/drm/drm_atomic_uapi.c
+++ b/drivers/gpu/drm/drm_atomic_uapi.c
@@ -362,39 +362,6 @@ static s32 __user *get_out_fence_for_connector(struct drm_atomic_state *state,
return fence_ptr;
}
-static int
-drm_atomic_replace_property_blob_from_id(struct drm_device *dev,
- struct drm_property_blob **blob,
- uint64_t blob_id,
- ssize_t expected_size,
- ssize_t expected_elem_size,
- bool *replaced)
-{
- struct drm_property_blob *new_blob = NULL;
-
- if (blob_id != 0) {
- new_blob = drm_property_lookup_blob(dev, blob_id);
- if (new_blob == NULL)
- return -EINVAL;
-
- if (expected_size > 0 &&
- new_blob->length != expected_size) {
- drm_property_blob_put(new_blob);
- return -EINVAL;
- }
- if (expected_elem_size > 0 &&
- new_blob->length % expected_elem_size != 0) {
- drm_property_blob_put(new_blob);
- return -EINVAL;
- }
- }
-
- *replaced |= drm_property_replace_blob(blob, new_blob);
- drm_property_blob_put(new_blob);
-
- return 0;
-}
-
static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
struct drm_crtc_state *state, struct drm_property *property,
uint64_t val)
@@ -415,7 +382,7 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
} else if (property == config->prop_vrr_enabled) {
state->vrr_enabled = val;
} else if (property == config->degamma_lut_property) {
- ret = drm_atomic_replace_property_blob_from_id(dev,
+ ret = drm_property_replace_blob_from_id(dev,
&state->degamma_lut,
val,
-1, sizeof(struct drm_color_lut),
@@ -423,7 +390,7 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
state->color_mgmt_changed |= replaced;
return ret;
} else if (property == config->ctm_property) {
- ret = drm_atomic_replace_property_blob_from_id(dev,
+ ret = drm_property_replace_blob_from_id(dev,
&state->ctm,
val,
sizeof(struct drm_color_ctm), -1,
@@ -431,7 +398,7 @@ static int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
state->color_mgmt_changed |= replaced;
return ret;
} else if (property == config->gamma_lut_property) {
- ret = drm_atomic_replace_property_blob_from_id(dev,
+ ret = drm_property_replace_blob_from_id(dev,
&state->gamma_lut,
val,
-1, sizeof(struct drm_color_lut),
@@ -563,7 +530,7 @@ static int drm_atomic_plane_set_property(struct drm_plane *plane,
} else if (property == plane->color_range_property) {
state->color_range = val;
} else if (property == config->prop_fb_damage_clips) {
- ret = drm_atomic_replace_property_blob_from_id(dev,
+ ret = drm_property_replace_blob_from_id(dev,
&state->fb_damage_clips,
val,
-1,
@@ -729,7 +696,7 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector,
if (state->link_status != DRM_LINK_STATUS_GOOD)
state->link_status = val;
} else if (property == config->hdr_output_metadata_property) {
- ret = drm_atomic_replace_property_blob_from_id(dev,
+ ret = drm_property_replace_blob_from_id(dev,
&state->hdr_output_metadata,
val,
sizeof(struct hdr_output_metadata), -1,
diff --git a/drivers/gpu/drm/drm_property.c b/drivers/gpu/drm/drm_property.c
index dfec479830e4..f72ef6493340 100644
--- a/drivers/gpu/drm/drm_property.c
+++ b/drivers/gpu/drm/drm_property.c
@@ -751,6 +751,55 @@ bool drm_property_replace_blob(struct drm_property_blob **blob,
}
EXPORT_SYMBOL(drm_property_replace_blob);
+/**
+ * drm_property_replace_blob_from_id - replace a blob property taking a reference
+ * @dev: DRM device
+ * @blob: a pointer to the member blob to be replaced
+ * @blob_id: the id of the new blob to replace with
+ * @expected_size: expected size of the blob property
+ * @expected_elem_size: expected size of an element in the blob property
+ * @replaced: if the blob was in fact replaced
+ *
+ * Look up the new blob from id, take its reference, check expected sizes of
+ * the blob and its element and replace the old blob by the new one. Advertise
+ * if the replacement operation was successful.
+ *
+ * Return: true if the blob was in fact replaced. -EINVAL if the new blob was
+ * not found or sizes don't match.
+ */
+int drm_property_replace_blob_from_id(struct drm_device *dev,
+ struct drm_property_blob **blob,
+ uint64_t blob_id,
+ ssize_t expected_size,
+ ssize_t expected_elem_size,
+ bool *replaced)
+{
+ struct drm_property_blob *new_blob = NULL;
+
+ if (blob_id != 0) {
+ new_blob = drm_property_lookup_blob(dev, blob_id);
+ if (new_blob == NULL)
+ return -EINVAL;
+
+ if (expected_size > 0 &&
+ new_blob->length != expected_size) {
+ drm_property_blob_put(new_blob);
+ return -EINVAL;
+ }
+ if (expected_elem_size > 0 &&
+ new_blob->length % expected_elem_size != 0) {
+ drm_property_blob_put(new_blob);
+ return -EINVAL;
+ }
+ }
+
+ *replaced |= drm_property_replace_blob(blob, new_blob);
+ drm_property_blob_put(new_blob);
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_property_replace_blob_from_id);
+
int drm_mode_getblob_ioctl(struct drm_device *dev,
void *data, struct drm_file *file_priv)
{
diff --git a/include/drm/drm_property.h b/include/drm/drm_property.h
index 65bc9710a470..082f29156b3e 100644
--- a/include/drm/drm_property.h
+++ b/include/drm/drm_property.h
@@ -279,6 +279,12 @@ struct drm_property_blob *drm_property_create_blob(struct drm_device *dev,
const void *data);
struct drm_property_blob *drm_property_lookup_blob(struct drm_device *dev,
uint32_t id);
+int drm_property_replace_blob_from_id(struct drm_device *dev,
+ struct drm_property_blob **blob,
+ uint64_t blob_id,
+ ssize_t expected_size,
+ ssize_t expected_elem_size,
+ bool *replaced);
int drm_property_replace_global_blob(struct drm_device *dev,
struct drm_property_blob **replace,
size_t length,
--
2.40.1
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