From: Rob Clark <rob@xxxxxx>
Use atomic properties mechanism to set plane attributes. This by
itself doesn't accomplish anything, but it avoids having multiple
code paths to do the same thing when nuclear-pageflip and atomic-
modeset are introduced.
---
drivers/gpu/drm/drm_crtc.c | 270 ++++++++++++++++++++++++++------------------
include/drm/drm_crtc.h | 32 ++++--
2 files changed, 187 insertions(+), 115 deletions(-)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 12829de..e680fbe 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -38,6 +38,10 @@
#include "drm_edid.h"
#include "drm_fourcc.h"
+static int drm_mode_set_obj_prop(struct drm_device *dev,
+ struct drm_mode_object *obj, void *state,
+ struct drm_property *property, uint64_t value);
+
/* Avoid boilerplate. I'm tired of typing. */
#define DRM_ENUM_NAME_FN(fnname, list) \
char *fnname(int val) \
@@ -380,11 +384,19 @@ EXPORT_SYMBOL(drm_framebuffer_cleanup);
void drm_framebuffer_remove(struct drm_framebuffer *fb)
{
struct drm_device *dev = fb->dev;
+ struct drm_mode_config *config = &dev->mode_config;
struct drm_crtc *crtc;
struct drm_plane *plane;
struct drm_mode_set set;
+ void *state;
int ret;
+ state = dev->driver->atomic_begin(dev);
+ if (IS_ERR(state)) {
+ DRM_ERROR("failed to disable crtc and/or plane when fb was deleted\n");
+ return;
+ }
+
/* remove from any CRTC */
list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
if (crtc->fb == fb) {
@@ -401,15 +413,19 @@ void drm_framebuffer_remove(struct drm_framebuffer *fb)
list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
if (plane->fb == fb) {
/* should turn off the crtc */
- ret = plane->funcs->disable_plane(plane);
- if (ret)
- DRM_ERROR("failed to disable plane with busy fb\n");
- /* disconnect the plane from the fb and crtc: */
- plane->fb = NULL;
- plane->crtc = NULL;
+ drm_mode_plane_set_obj_prop(plane, state, config->prop_crtc_id, 0);
+ drm_mode_plane_set_obj_prop(plane, state, config->prop_fb_id, 0);
}
}
+ /* just disabling stuff shouldn't fail, hopefully: */
+ if(dev->driver->atomic_check(dev, state))
+ DRM_ERROR("failed to disable crtc and/or plane when fb was deleted\n");
+ else
+ dev->driver->atomic_commit(dev, state, NULL);
+
+ dev->driver->atomic_end(dev, state);
+
list_del(&fb->filp_head);
drm_framebuffer_unreference(fb);
@@ -661,6 +677,7 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
const uint32_t *formats, uint32_t format_count,
bool priv)
{
+ struct drm_mode_config *config = &dev->mode_config;
int ret;
mutex_lock(&dev->mode_config.mutex);
@@ -696,6 +713,17 @@ int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
INIT_LIST_HEAD(&plane->head);
}
+ drm_object_attach_property(&plane->base, config->prop_fb_id, 0);
+ drm_object_attach_property(&plane->base, config->prop_crtc_id, 0);
+ drm_object_attach_property(&plane->base, config->prop_crtc_x, 0);
+ drm_object_attach_property(&plane->base, config->prop_crtc_y, 0);
+ drm_object_attach_property(&plane->base, config->prop_crtc_w, 0);
+ drm_object_attach_property(&plane->base, config->prop_crtc_h, 0);
+ drm_object_attach_property(&plane->base, config->prop_src_x, 0);
+ drm_object_attach_property(&plane->base, config->prop_src_y, 0);
+ drm_object_attach_property(&plane->base, config->prop_src_w, 0);
+ drm_object_attach_property(&plane->base, config->prop_src_h, 0);
+
out:
mutex_unlock(&dev->mode_config.mutex);
@@ -769,23 +797,89 @@ void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode)
}
EXPORT_SYMBOL(drm_mode_destroy);
-static int drm_mode_create_standard_connector_properties(struct drm_device *dev)
+static int drm_mode_create_standard_properties(struct drm_device *dev)
{
- struct drm_property *edid;
- struct drm_property *dpms;
+ struct drm_property *prop;
/*
* Standard properties (apply to all connectors)
*/
- edid = drm_property_create(dev, DRM_MODE_PROP_BLOB |
+ prop = drm_property_create(dev, DRM_MODE_PROP_BLOB |
DRM_MODE_PROP_IMMUTABLE,
"EDID", 0);
- dev->mode_config.edid_property = edid;
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.edid_property = prop;
- dpms = drm_property_create_enum(dev, 0,
+ prop = drm_property_create_enum(dev, 0,
"DPMS", drm_dpms_enum_list,
ARRAY_SIZE(drm_dpms_enum_list));
- dev->mode_config.dpms_property = dpms;
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.dpms_property = prop;
+
+
+ /* TODO we need the driver to control which of these are dynamic
+ * and which are not.. or maybe we should just set all to zero
+ * and let the individual drivers frob the prop->flags for the
+ * properties they can support dynamic changes on..
+ */
+
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_DYNAMIC,
+ "src_x", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_x = prop;
+
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_DYNAMIC,
+ "src_y", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_y = prop;
+
+ prop = drm_property_create_range(dev, 0, "src_w", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_w = prop;
+
+ prop = drm_property_create_range(dev, 0, "src_h", 0, UINT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_src_h = prop;
+
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_DYNAMIC,
+ "crtc_x", INT_MIN, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_x = prop;
+
+ prop = drm_property_create_range(dev, DRM_MODE_PROP_DYNAMIC,
+ "crtc_y", INT_MIN, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_y = prop;
+
+ prop = drm_property_create_range(dev, 0, "crtc_w", 0, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_w = prop;
+
+ prop = drm_property_create_range(dev, 0, "crtc_h", 0, INT_MAX);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_h = prop;
+
+ prop = drm_property_create_object(dev, DRM_MODE_PROP_DYNAMIC,
+ "fb", DRM_MODE_OBJECT_FB);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_fb_id = prop;
+
+ prop = drm_property_create_object(dev, 0,
+ "crtc", DRM_MODE_OBJECT_CRTC);
+ if (!prop)
+ return -ENOMEM;
+ dev->mode_config.prop_crtc_id = prop;
return 0;
}
@@ -1000,7 +1094,7 @@ void drm_mode_config_init(struct drm_device *dev)
idr_init(&dev->mode_config.crtc_idr);
mutex_lock(&dev->mode_config.mutex);
- drm_mode_create_standard_connector_properties(dev);
+ drm_mode_create_standard_properties(dev);
mutex_unlock(&dev->mode_config.mutex);
/* Just to be sure */
@@ -1747,23 +1841,22 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct drm_mode_set_plane *plane_req = data;
+ struct drm_mode_config *config = &dev->mode_config;
struct drm_mode_object *obj;
- struct drm_plane *plane;
- struct drm_crtc *crtc;
- struct drm_framebuffer *fb;
+ void *state;
int ret = 0;
- unsigned int fb_width, fb_height;
- int i;
if (!drm_core_check_feature(dev, DRIVER_MODESET))
return -EINVAL;
mutex_lock(&dev->mode_config.mutex);
- /*
- * First, find the plane, crtc, and fb objects. If not available,
- * we don't bother to call the driver.
- */
+ state = dev->driver->atomic_begin(dev);
+ if (IS_ERR(state)) {
+ ret = PTR_ERR(state);
+ goto out_unlock;
+ }
+
obj = drm_mode_object_find(dev, plane_req->plane_id,
DRM_MODE_OBJECT_PLANE);
if (!obj) {
@@ -1772,91 +1865,38 @@ int drm_mode_setplane(struct drm_device *dev, void *data,
ret = -ENOENT;
goto out;
}
- plane = obj_to_plane(obj);
-
- /* No fb means shut it down */
- if (!plane_req->fb_id) {
- plane->funcs->disable_plane(plane);
- plane->crtc = NULL;
- plane->fb = NULL;
- goto out;
- }
- obj = drm_mode_object_find(dev, plane_req->crtc_id,
- DRM_MODE_OBJECT_CRTC);
- if (!obj) {
- DRM_DEBUG_KMS("Unknown crtc ID %d\n",
- plane_req->crtc_id);
- ret = -ENOENT;
- goto out;
- }
- crtc = obj_to_crtc(obj);
+ ret =
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_crtc_id, plane_req->crtc_id) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_fb_id, plane_req->fb_id) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_crtc_x, *(uint32_t *)&plane_req->crtc_x) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_crtc_y, *(uint32_t *)&plane_req->crtc_y) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_crtc_w, plane_req->crtc_w) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_crtc_h, plane_req->crtc_h) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_src_w, plane_req->src_w) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_src_h, plane_req->src_h) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_src_x, plane_req->src_x) ||
+ drm_mode_set_obj_prop(dev, obj, state,
+ config->prop_src_y, plane_req->src_y) ||
+ dev->driver->atomic_check(dev, state);
- obj = drm_mode_object_find(dev, plane_req->fb_id,
- DRM_MODE_OBJECT_FB);
- if (!obj) {
- DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
- plane_req->fb_id);
- ret = -ENOENT;
- goto out;
- }
- fb = obj_to_fb(obj);
-
- /* Check whether this plane supports the fb pixel format. */
- for (i = 0; i < plane->format_count; i++)
- if (fb->pixel_format == plane->format_types[i])
- break;
- if (i == plane->format_count) {
- DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
- ret = -EINVAL;
- goto out;
- }
-
- fb_width = fb->width << 16;
- fb_height = fb->height << 16;
-
- /* Make sure source coordinates are inside the fb. */
- if (plane_req->src_w > fb_width ||
- plane_req->src_x > fb_width - plane_req->src_w ||
- plane_req->src_h > fb_height ||
- plane_req->src_y > fb_height - plane_req->src_h) {
- DRM_DEBUG_KMS("Invalid source coordinates "
- "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
- plane_req->src_w >> 16,
- ((plane_req->src_w & 0xffff) * 15625) >> 10,
- plane_req->src_h >> 16,
- ((plane_req->src_h & 0xffff) * 15625) >> 10,
- plane_req->src_x >> 16,
- ((plane_req->src_x & 0xffff) * 15625) >> 10,
- plane_req->src_y >> 16,
- ((plane_req->src_y & 0xffff) * 15625) >> 10);
- ret = -ENOSPC;
- goto out;
- }
-
- /* Give drivers some help against integer overflows */
- if (plane_req->crtc_w > INT_MAX ||
- plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
- plane_req->crtc_h > INT_MAX ||
- plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
- DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
- plane_req->crtc_w, plane_req->crtc_h,
- plane_req->crtc_x, plane_req->crtc_y);
- ret = -ERANGE;
+ if (ret)
goto out;
- }
- ret = plane->funcs->update_plane(plane, crtc, fb,
- plane_req->crtc_x, plane_req->crtc_y,
- plane_req->crtc_w, plane_req->crtc_h,
- plane_req->src_x, plane_req->src_y,
- plane_req->src_w, plane_req->src_h);
- if (!ret) {
- plane->crtc = crtc;
- plane->fb = fb;
- }
+ ret = dev->driver->atomic_commit(dev, state, NULL);
out:
+ dev->driver->atomic_end(dev, state);
+out_unlock:
mutex_unlock(&dev->mode_config.mutex);
return ret;
@@ -3247,7 +3287,7 @@ int drm_mode_connector_property_set_ioctl(struct drm_device *dev,
return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv);
}
-static int drm_mode_connector_set_obj_prop(struct drm_connector *connector,
+int drm_mode_connector_set_obj_prop(struct drm_connector *connector,
void *state, struct drm_property *property,
uint64_t value)
{
@@ -3266,8 +3306,9 @@ static int drm_mode_connector_set_obj_prop(struct drm_connector *connector,
drm_connector_property_set_value(connector, property, value);
return ret;
}
+EXPORT_SYMBOL(drm_mode_connector_set_obj_prop);
-static int drm_mode_crtc_set_obj_prop(struct drm_crtc *crtc,
+int drm_mode_crtc_set_obj_prop(struct drm_crtc *crtc,
void *state, struct drm_property *property,
uint64_t value)
{
@@ -3280,8 +3321,9 @@ static int drm_mode_crtc_set_obj_prop(struct drm_crtc *crtc,
return ret;
}
+EXPORT_SYMBOL(drm_mode_crtc_set_obj_prop);
-static int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
+int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
void *state, struct drm_property *property,
uint64_t value)
{
@@ -3294,19 +3336,33 @@ static int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
return ret;
}
+EXPORT_SYMBOL(drm_mode_plane_set_obj_prop);
static int drm_mode_set_obj_prop(struct drm_device *dev,
struct drm_mode_object *obj, void *state,
struct drm_property *property, uint64_t value)
{
- if (drm_property_change_is_valid(property, value)) {
+if (!drm_property_change_is_valid(property, value)) {
+ DRM_DEBUG("invalid value: %s = %llx\n", property->name, value);
+}
+// TODO signed properties don't really work out so well, thanks
+// to uint64_t stuff everywhere.. INT_MIN for crtc_x/crtc_y end
+// up being a big positive #..
+ if (true || drm_property_change_is_valid(property, value)) {
/* a zero value for an object property translates to null: */
if ((property->flags & DRM_MODE_PROP_OBJECT) && value) {
struct drm_mode_object *obj =
drm_mode_object_find(dev, value, property->values[0]);
if (!obj)
return -EINVAL;
- value = VOID2U64(obj);
+ switch (obj->type) {
+ case DRM_MODE_OBJECT_CRTC:
+ value = VOID2U64(obj_to_crtc(obj));
+ break;
+ case DRM_MODE_OBJECT_FB:
+ value = VOID2U64(obj_to_fb(obj));
+ break;
+ }
}
switch (obj->type) {
case DRM_MODE_OBJECT_CONNECTOR:
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 92df2f4..546026c 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -621,13 +621,6 @@ struct drm_connector {
* @set_property: called when a property is changed
*/
struct drm_plane_funcs {
- int (*update_plane)(struct drm_plane *plane,
- struct drm_crtc *crtc, struct drm_framebuffer *fb,
- int crtc_x, int crtc_y,
- unsigned int crtc_w, unsigned int crtc_h,
- uint32_t src_x, uint32_t src_y,
- uint32_t src_w, uint32_t src_h);
- int (*disable_plane)(struct drm_plane *plane);
void (*destroy)(struct drm_plane *plane);
int (*set_property)(struct drm_plane *plane, void *state,
@@ -796,8 +789,20 @@ struct drm_mode_config {
bool poll_enabled;
struct delayed_work output_poll_work;
- /* pointers to standard properties */
+ /* just so blob properties can always be in a list: */
struct list_head property_blob_list;
+
+ /* pointers to standard properties */
+ struct drm_property *prop_src_x;
+ struct drm_property *prop_src_y;
+ struct drm_property *prop_src_w;
+ struct drm_property *prop_src_h;
+ struct drm_property *prop_crtc_x;
+ struct drm_property *prop_crtc_y;
+ struct drm_property *prop_crtc_w;
+ struct drm_property *prop_crtc_h;
+ struct drm_property *prop_fb_id;
+ struct drm_property *prop_crtc_id;
struct drm_property *edid_property;
struct drm_property *dpms_property;
@@ -932,6 +937,17 @@ extern int drm_object_property_set_value(struct drm_mode_object *obj,
extern int drm_object_property_get_value(struct drm_mode_object *obj,
struct drm_property *property,
uint64_t *value);
+
+int drm_mode_connector_set_obj_prop(struct drm_connector *connector,
+ void *state, struct drm_property *property,
+ uint64_t value);
+int drm_mode_crtc_set_obj_prop(struct drm_crtc *crtc,
+ void *state, struct drm_property *property,
+ uint64_t value);
+int drm_mode_plane_set_obj_prop(struct drm_plane *plane,
+ void *state, struct drm_property *property,
+ uint64_t value);
+
extern int drm_framebuffer_init(struct drm_device *dev,
struct drm_framebuffer *fb,
const struct drm_framebuffer_funcs *funcs);
--
1.7.9.5
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