diff options
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
| -rw-r--r-- | drivers/gpu/drm/drm_plane.c | 116 |
1 files changed, 101 insertions, 15 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index a28b22fdd7a4..ce76c55913f7 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -20,6 +20,7 @@ * OF THIS SOFTWARE. */ +#include <linux/export.h> #include <linux/slab.h> #include <linux/uaccess.h> @@ -141,6 +142,14 @@ * various bugs in this area with inconsistencies between the capability * flag and per-plane properties. * + * IN_FORMATS_ASYNC: + * Blob property which contains the set of buffer format and modifier + * pairs supported by this plane for asynchronous flips. The blob is a struct + * drm_format_modifier_blob. Userspace cannot change this property. This is an + * optional property and if not present then user should expect a failure in + * atomic ioctl when the modifier/format is not supported by that plane under + * asynchronous flip. + * * SIZE_HINTS: * Blob property which contains the set of recommended plane size * which can used for simple "cursor like" use cases (eg. no scaling). @@ -185,9 +194,13 @@ modifiers_ptr(struct drm_format_modifier_blob *blob) return (struct drm_format_modifier *)(((char *)blob) + blob->modifiers_offset); } -static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane) +static struct drm_property_blob *create_in_format_blob(struct drm_device *dev, + struct drm_plane *plane, + bool (*format_mod_supported) + (struct drm_plane *plane, + u32 format, + u64 modifier)) { - const struct drm_mode_config *config = &dev->mode_config; struct drm_property_blob *blob; struct drm_format_modifier *mod; size_t blob_size, formats_size, modifiers_size; @@ -197,7 +210,7 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane formats_size = sizeof(__u32) * plane->format_count; if (WARN_ON(!formats_size)) { /* 0 formats are never expected */ - return 0; + return ERR_PTR(-EINVAL); } modifiers_size = @@ -213,7 +226,7 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane blob = drm_property_create_blob(dev, blob_size, NULL); if (IS_ERR(blob)) - return -1; + return blob; blob_data = blob->data; blob_data->version = FORMAT_BLOB_CURRENT; @@ -229,10 +242,10 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane mod = modifiers_ptr(blob_data); for (i = 0; i < plane->modifier_count; i++) { for (j = 0; j < plane->format_count; j++) { - if (!plane->funcs->format_mod_supported || - plane->funcs->format_mod_supported(plane, - plane->format_types[j], - plane->modifiers[i])) { + if (!format_mod_supported || + format_mod_supported(plane, + plane->format_types[j], + plane->modifiers[i])) { mod->formats |= 1ULL << j; } } @@ -243,10 +256,7 @@ static int create_in_format_blob(struct drm_device *dev, struct drm_plane *plane mod++; } - drm_object_attach_property(&plane->base, config->modifiers_property, - blob->base.id); - - return 0; + return blob; } /** @@ -358,6 +368,7 @@ static int __drm_universal_plane_init(struct drm_device *dev, const char *name, va_list ap) { struct drm_mode_config *config = &dev->mode_config; + struct drm_property_blob *blob; static const uint64_t default_modifiers[] = { DRM_FORMAT_MOD_LINEAR, }; @@ -414,7 +425,7 @@ static int __drm_universal_plane_init(struct drm_device *dev, plane->modifier_count = format_modifier_count; plane->modifiers = kmalloc_array(format_modifier_count, - sizeof(format_modifiers[0]), + sizeof(*plane->modifiers), GFP_KERNEL); if (format_modifier_count && !plane->modifiers) { @@ -469,8 +480,24 @@ static int __drm_universal_plane_init(struct drm_device *dev, drm_plane_create_hotspot_properties(plane); } - if (format_modifier_count) - create_in_format_blob(dev, plane); + if (format_modifier_count) { + blob = create_in_format_blob(dev, plane, + plane->funcs->format_mod_supported); + if (!IS_ERR(blob)) + drm_object_attach_property(&plane->base, + config->modifiers_property, + blob->base.id); + } + + if (plane->funcs->format_mod_supported_async) { + blob = create_in_format_blob(dev, plane, + plane->funcs->format_mod_supported_async); + if (!IS_ERR(blob)) + drm_object_attach_property(&plane->base, + config->async_modifiers_property, + blob->base.id); + } + return 0; } @@ -1793,3 +1820,62 @@ int drm_plane_add_size_hints_property(struct drm_plane *plane, return 0; } EXPORT_SYMBOL(drm_plane_add_size_hints_property); + +/** + * drm_plane_create_color_pipeline_property - create a new color pipeline + * property + * + * @plane: drm plane + * @pipelines: list of pipelines + * @num_pipelines: number of pipelines + * + * Create the COLOR_PIPELINE plane property to specific color pipelines on + * the plane. + * + * RETURNS: + * Zero for success or -errno + */ +int drm_plane_create_color_pipeline_property(struct drm_plane *plane, + const struct drm_prop_enum_list *pipelines, + int num_pipelines) +{ + struct drm_prop_enum_list *all_pipelines; + struct drm_property *prop; + int len = 0; + int i; + + all_pipelines = kcalloc(num_pipelines + 1, + sizeof(*all_pipelines), + GFP_KERNEL); + + if (!all_pipelines) { + drm_err(plane->dev, "failed to allocate color pipeline\n"); + return -ENOMEM; + } + + /* Create default Bypass color pipeline */ + all_pipelines[len].type = 0; + all_pipelines[len].name = "Bypass"; + len++; + + /* Add all other color pipelines */ + for (i = 0; i < num_pipelines; i++, len++) { + all_pipelines[len].type = pipelines[i].type; + all_pipelines[len].name = pipelines[i].name; + } + + prop = drm_property_create_enum(plane->dev, DRM_MODE_PROP_ATOMIC, + "COLOR_PIPELINE", + all_pipelines, len); + if (IS_ERR(prop)) { + kfree(all_pipelines); + return PTR_ERR(prop); + } + + drm_object_attach_property(&plane->base, prop, 0); + plane->color_pipeline_property = prop; + + kfree(all_pipelines); + return 0; +} +EXPORT_SYMBOL(drm_plane_create_color_pipeline_property); |