Add overlay plane support in vkms aligned with cursor and primary plane with module option 'enable_overlay' to enable/disable overlay plane while testing.
This currently passes plane-position-covered-pipe-A-plane subtest from IGT kms_plane test.
Signed-off-by: Mamta Shukla mamtashukla555@gmail.com --- change in v2: -Fix warning: return makes pointer from integer without a cast using ERR_PTR
drivers/gpu/drm/vkms/vkms_crc.c | 36 +++++++++++++++++++++++++++---- drivers/gpu/drm/vkms/vkms_drv.c | 4 ++++ drivers/gpu/drm/vkms/vkms_drv.h | 8 +++++++ drivers/gpu/drm/vkms/vkms_plane.c | 36 ++++++++++++++++++++++++++++++- 4 files changed, 79 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/vkms/vkms_crc.c b/drivers/gpu/drm/vkms/vkms_crc.c index 4dd6c155363d..ac3ed863cf34 100644 --- a/drivers/gpu/drm/vkms/vkms_crc.c +++ b/drivers/gpu/drm/vkms/vkms_crc.c @@ -109,6 +109,25 @@ static void blend(void *vaddr_dst, void *vaddr_src, } }
+static void compose_overlay(struct vkms_crc_data *overlay_crc, + struct vkms_crc_data *primary_crc, void *vaddr_out) { + struct drm_gem_object *overlay_obj; + struct vkms_gem_object *overlay_vkms_obj; + + overlay_obj = drm_gem_fb_get_obj(&overlay_crc->fb, 0); + overlay_vkms_obj = drm_gem_to_vkms_gem(overlay_obj); + mutex_lock(&overlay_vkms_obj->pages_lock); + if(!overlay_vkms_obj->vaddr){ + DRM_WARN("overlay palne vaddr is NULL"); + goto out; + } + + blend(vaddr_out, overlay_vkms_obj->vaddr, primary_crc, overlay_crc); + +out: + mutex_unlock(&overlay_vkms_obj->pages_lock); +} + static void compose_cursor(struct vkms_crc_data *cursor_crc, struct vkms_crc_data *primary_crc, void *vaddr_out) { @@ -131,7 +150,8 @@ static void compose_cursor(struct vkms_crc_data *cursor_crc, }
static uint32_t _vkms_get_crc(struct vkms_crc_data *primary_crc, - struct vkms_crc_data *cursor_crc) + struct vkms_crc_data *cursor_crc, + struct vkms_crc_data *overlay_crc) { struct drm_framebuffer *fb = &primary_crc->fb; struct drm_gem_object *gem_obj = drm_gem_fb_get_obj(fb, 0); @@ -154,6 +174,8 @@ static uint32_t _vkms_get_crc(struct vkms_crc_data *primary_crc, memcpy(vaddr_out, vkms_obj->vaddr, vkms_obj->gem.size); mutex_unlock(&vkms_obj->pages_lock);
+ if (overlay_crc) + compose_overlay(overlay_crc, primary_crc, vaddr_out); if (cursor_crc) compose_cursor(cursor_crc, primary_crc, vaddr_out);
@@ -184,6 +206,7 @@ void vkms_crc_work_handle(struct work_struct *work) output); struct vkms_crc_data *primary_crc = NULL; struct vkms_crc_data *cursor_crc = NULL; + struct vkms_crc_data *overlay_crc = NULL; struct drm_plane *plane; u32 crc32 = 0; u64 frame_start, frame_end; @@ -210,12 +233,17 @@ void vkms_crc_work_handle(struct work_struct *work)
if (plane->type == DRM_PLANE_TYPE_PRIMARY) primary_crc = crc_data; - else + + if (plane->type == DRM_PLANE_TYPE_CURSOR) cursor_crc = crc_data; + + if (plane->type == DRM_PLANE_TYPE_OVERLAY) + overlay_crc = crc_data; }
- if (primary_crc) - crc32 = _vkms_get_crc(primary_crc, cursor_crc); + if (primary_crc){ + crc32 = _vkms_get_crc(primary_crc, cursor_crc, overlay_crc); + }
frame_end = drm_crtc_accurate_vblank_count(crtc);
diff --git a/drivers/gpu/drm/vkms/vkms_drv.c b/drivers/gpu/drm/vkms/vkms_drv.c index 738dd6206d85..b08ad6f95675 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.c +++ b/drivers/gpu/drm/vkms/vkms_drv.c @@ -29,6 +29,10 @@ bool enable_cursor; module_param_named(enable_cursor, enable_cursor, bool, 0444); MODULE_PARM_DESC(enable_cursor, "Enable/Disable cursor support");
+bool enable_overlay; +module_param_named(enable_overlay, enable_overlay, bool, 0444); +MODULE_PARM_DESC(enable_overlay, "Enable/Disable overlay support"); + static const struct file_operations vkms_driver_fops = { .owner = THIS_MODULE, .open = drm_open, diff --git a/drivers/gpu/drm/vkms/vkms_drv.h b/drivers/gpu/drm/vkms/vkms_drv.h index 81f1cfbeb936..81dceadfde62 100644 --- a/drivers/gpu/drm/vkms/vkms_drv.h +++ b/drivers/gpu/drm/vkms/vkms_drv.h @@ -20,6 +20,8 @@
extern bool enable_cursor;
+extern bool enable_overlay; + static const u32 vkms_formats[] = { DRM_FORMAT_XRGB8888, }; @@ -28,6 +30,10 @@ static const u32 vkms_cursor_formats[] = { DRM_FORMAT_ARGB8888, };
+static const u32 vkms_overlay_formats[] ={ + DRM_FORMAT_ARGB8888, +}; + struct vkms_crc_data { struct drm_framebuffer fb; struct drm_rect src, dst; @@ -118,6 +124,8 @@ int vkms_output_init(struct vkms_device *vkmsdev); struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, enum drm_plane_type type);
+struct drm_plane *vkms_overlay_init(struct vkms_device *vkmsdev); + /* Gem stuff */ struct drm_gem_object *vkms_gem_create(struct drm_device *dev, struct drm_file *file, diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 0e67d2d42f0c..d540b9500633 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -114,7 +114,7 @@ static int vkms_plane_atomic_check(struct drm_plane *plane, if (IS_ERR(crtc_state)) return PTR_ERR(crtc_state);
- if (plane->type == DRM_PLANE_TYPE_CURSOR) + if ((plane->type == DRM_PLANE_TYPE_CURSOR)|(plane->type == DRM_PLANE_TYPE_OVERLAY)) can_position = true;
ret = drm_atomic_helper_check_plane_state(state, crtc_state, @@ -167,6 +167,40 @@ static const struct drm_plane_helper_funcs vkms_primary_helper_funcs = { .cleanup_fb = vkms_cleanup_fb, };
+struct drm_plane *vkms_overlay_init(struct vkms_device *vkmsdev) +{ + struct drm_device *dev = &vkmsdev->drm; + const struct drm_plane_helper_funcs *funcs; + struct drm_plane *overlay; + const u32 *formats; + int ret, nformats; + unsigned int blend_caps = BIT(DRM_MODE_BLEND_PIXEL_NONE) | + BIT(DRM_MODE_BLEND_PREMULTI); + + overlay = kzalloc(sizeof(*overlay), GFP_KERNEL); + if (!overlay) + return ERR_PTR(-ENOMEM); + + formats = vkms_overlay_formats; + nformats = ARRAY_SIZE(vkms_overlay_formats); + funcs = &vkms_primary_helper_funcs; + drm_plane_helper_add(overlay, funcs); + drm_plane_create_alpha_property(overlay); + drm_plane_create_blend_mode_property(overlay, blend_caps); + + ret = drm_universal_plane_init(dev, overlay, 0, + &vkms_plane_funcs, + formats, nformats, + NULL, + DRM_PLANE_TYPE_OVERLAY, NULL); + if (ret){ + kfree(overlay); + return ERR_PTR(ret); + } + + return overlay; +} + struct drm_plane *vkms_plane_init(struct vkms_device *vkmsdev, enum drm_plane_type type) {