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author | Dave Airlie <airlied@redhat.com> | 2021-03-16 16:45:12 +1000 |
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committer | Dave Airlie <airlied@redhat.com> | 2021-03-16 17:08:46 +1000 |
commit | 51c3b916a4d7e24b4918925965867fdd9bd8dd59 (patch) | |
tree | 3257e3e0fda7fbb0fe1425177b0c661db1bfee63 /drivers/gpu/drm/drm_plane.c | |
parent | 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff) | |
parent | 762949bb1da78941b25e63f7e952af037eee15a9 (diff) | |
download | linux-51c3b916a4d7e24b4918925965867fdd9bd8dd59.tar.gz linux-51c3b916a4d7e24b4918925965867fdd9bd8dd59.tar.bz2 linux-51c3b916a4d7e24b4918925965867fdd9bd8dd59.zip |
Merge tag 'drm-misc-next-2021-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for 5.13:
UAPI Changes:
Cross-subsystem Changes:
Core Changes:
- %p4cc printk format modifier
- atomic: introduce drm_crtc_commit_wait, rework atomic plane state
helpers to take the drm_commit_state structure
- dma-buf: heaps rework to return a struct dma_buf
- simple-kms: Add plate state helpers
- ttm: debugfs support, removal of sysfs
Driver Changes:
- Convert drivers to shadow plane helpers
- arc: Move to drm/tiny
- ast: cursor plane reworks
- gma500: Remove TTM and medfield support
- mxsfb: imx8mm support
- panfrost: MMU IRQ handling rework
- qxl: rework to better handle resources deallocation, locking
- sun4i: Add alpha properties for UI and VI layers
- vc4: RPi4 CEC support
- vmwgfx: doc cleanup
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20210303100600.dgnkadonzuvfnu22@gilmour
Diffstat (limited to 'drivers/gpu/drm/drm_plane.c')
-rw-r--r-- | drivers/gpu/drm/drm_plane.c | 66 |
1 files changed, 56 insertions, 10 deletions
diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c index 338650abd267..0dd43882fe7c 100644 --- a/drivers/gpu/drm/drm_plane.c +++ b/drivers/gpu/drm/drm_plane.c @@ -50,10 +50,8 @@ * &struct drm_plane (possibly as part of a larger structure) and registers it * with a call to drm_universal_plane_init(). * - * The type of a plane is exposed in the immutable "type" enumeration property, - * which has one of the following values: "Overlay", "Primary", "Cursor" (see - * enum drm_plane_type). A plane can be compatible with multiple CRTCs, see - * &drm_plane.possible_crtcs. + * Each plane has a type, see enum drm_plane_type. A plane can be compatible + * with multiple CRTCs, see &drm_plane.possible_crtcs. * * Each CRTC must have a unique primary plane userspace can attach to enable * the CRTC. In other words, userspace must be able to attach a different @@ -73,6 +71,58 @@ * * DRM planes have a few standardized properties: * + * type: + * Immutable property describing the type of the plane. + * + * For user-space which has enabled the &DRM_CLIENT_CAP_ATOMIC capability, + * the plane type is just a hint and is mostly superseded by atomic + * test-only commits. The type hint can still be used to come up more + * easily with a plane configuration accepted by the driver. + * + * The value of this property can be one of the following: + * + * "Primary": + * To light up a CRTC, attaching a primary plane is the most likely to + * work if it covers the whole CRTC and doesn't have scaling or + * cropping set up. + * + * Drivers may support more features for the primary plane, user-space + * can find out with test-only atomic commits. + * + * Some primary planes are implicitly used by the kernel in the legacy + * IOCTLs &DRM_IOCTL_MODE_SETCRTC and &DRM_IOCTL_MODE_PAGE_FLIP. + * Therefore user-space must not mix explicit usage of any primary + * plane (e.g. through an atomic commit) with these legacy IOCTLs. + * + * "Cursor": + * To enable this plane, using a framebuffer configured without scaling + * or cropping and with the following properties is the most likely to + * work: + * + * - If the driver provides the capabilities &DRM_CAP_CURSOR_WIDTH and + * &DRM_CAP_CURSOR_HEIGHT, create the framebuffer with this size. + * Otherwise, create a framebuffer with the size 64x64. + * - If the driver doesn't support modifiers, create a framebuffer with + * a linear layout. Otherwise, use the IN_FORMATS plane property. + * + * Drivers may support more features for the cursor plane, user-space + * can find out with test-only atomic commits. + * + * Some cursor planes are implicitly used by the kernel in the legacy + * IOCTLs &DRM_IOCTL_MODE_CURSOR and &DRM_IOCTL_MODE_CURSOR2. + * Therefore user-space must not mix explicit usage of any cursor + * plane (e.g. through an atomic commit) with these legacy IOCTLs. + * + * Some drivers may support cursors even if no cursor plane is exposed. + * In this case, the legacy cursor IOCTLs can be used to configure the + * cursor. + * + * "Overlay": + * Neither primary nor cursor. + * + * Overlay planes are the only planes exposed when the + * &DRM_CLIENT_CAP_UNIVERSAL_PLANES capability is disabled. + * * IN_FORMATS: * Blob property which contains the set of buffer format and modifier * pairs supported by this plane. The blob is a struct @@ -719,12 +769,8 @@ static int __setplane_check(struct drm_plane *plane, ret = drm_plane_check_pixel_format(plane, fb->format->format, fb->modifier); if (ret) { - struct drm_format_name_buf format_name; - - DRM_DEBUG_KMS("Invalid pixel format %s, modifier 0x%llx\n", - drm_get_format_name(fb->format->format, - &format_name), - fb->modifier); + DRM_DEBUG_KMS("Invalid pixel format %p4cc, modifier 0x%llx\n", + &fb->format->format, fb->modifier); return ret; } |