Commit Graph

67 Commits

Author SHA1 Message Date
Ville Syrjälä b0b3b79511 drm: Pass 'name' to drm_universal_plane_init()
Done with coccinelle for the most part. It choked on
msm/mdp/mdp5/mdp5_plane.c like so:
"BAD:!!!!!  enum drm_plane_type type;"
No idea how to deal with that, so I just fixed that up
by hand.

Also it thinks '...' is part of the semantic patch, so I put an
'int DOTDOTDOT' placeholder in its place and got rid of it with
sed afterwards.

I didn't convert drm_plane_init() since passing the varargs through
would mean either cpp macros or va_list, and I figured we don't
care about these legacy functions enough to warrant the extra pain.

@@
typedef uint32_t;
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
 int drm_universal_plane_init(struct drm_device *dev,
                              struct drm_plane *plane,
                              unsigned long possible_crtcs,
                              const struct drm_plane_funcs *funcs,
                              const uint32_t *formats,
                              unsigned int format_count,
                              enum drm_plane_type type
+                             ,const char *name, int DOTDOTDOT
                              )
{ ... }

@@
identifier dev, plane, possible_crtcs, funcs, formats, format_count, type;
@@
 int drm_universal_plane_init(struct drm_device *dev,
                              struct drm_plane *plane,
                              unsigned long possible_crtcs,
                              const struct drm_plane_funcs *funcs,
                              const uint32_t *formats,
                              unsigned int format_count,
                              enum drm_plane_type type
+                             ,const char *name, int DOTDOTDOT
                              );

@@
expression E1, E2, E3, E4, E5, E6, E7;
@@
 drm_universal_plane_init(E1, E2, E3, E4, E5, E6, E7
+                         ,NULL
                          )

v2: Split crtc and plane changes apart
    Pass NUL for no-name instead of ""
    Leave drm_plane_init() alone
v3: Add ', or NULL...' to @name kernel doc (Jani)
    Annotate the function with __printf() attribute (Jani)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1449670795-2853-1-git-send-email-ville.syrjala@linux.intel.com
2015-12-11 09:13:10 +01:00
Russell King 4a8506d2d6 drm/armada: convert overlay plane vbl worker to a armada plane worker
Convert the overlay plane to use the generic armada plane worker
infrastructure which is shared with the primary plane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:28 +01:00
Russell King 5740d27fa5 drm/armada: move frame wait into armada_frame
Both the CRTC and overlay frames have their own wait queues.  It would
make more sense if these were part of the plane - the primary plane for
the CRTC and overlay plane for the overlay.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:28 +01:00
Russell King 6908cf755a drm/armada: move the locking for armada_drm_vbl_event_remove()
Move the locking for armada_drm_vbl_event_remove() into itself, which
makes this function symmetrical with armada_drm_vbl_event_add().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:28 +01:00
Russell King 5c8752c650 drm/armada: move the update of dplane->ctrl0 out of spinlock
It is not necessary to write dplane->ctrl0 under the CRTC spinlock, as
this is only accessed under process context where the DRM locks will
protect us instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:27 +01:00
Russell King 9099ea19ca drm/armada: move write to dma_ctrl0 to armada_drm_crtc_plane_disable()
Move the write to clear the DMA enable bit, and augment it with clearing
the graphics enable bit for the primary plane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:27 +01:00
Russell King 5832680358 drm/armada: provide a common helper to disable a plane
Provide a common helper to disable either the overlay or the primary
plane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:27 +01:00
Russell King 561f60bc51 drm/armada: introduce generic armada_plane struct
Introduce a generic armada_plane struct which will eventually be used
for both the primary and overlay planes.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:33:26 +01:00
Russell King d563c24514 drm/armada: update armada overlay to use drm_universal_plane_init()
Use the new drm_universal_plane_init() rather than the legacy
drm_plane_init().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:32:52 +01:00
Russell King 66377efa3f drm/armada: use xchg() to atomically update dplane->old_fb
Rather than using a spinlock, use xchg() to atomically update
dplane->old_fb.  This allows us to eliminate dplane->lock.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-10-01 14:32:52 +01:00
Russell King fecfdb2db8 drm/armada: factor out retirement of old fb
We have two identical places in the overlay code which retire the drm
framebuffer.  Factor these out into a common function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-15 16:26:50 +01:00
Russell King 28a2aebed6 drm/armada: rename overlay identifiers
Include an _ovl infix into the overlay identifiers to separate them from
the primary plane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-09-15 16:26:50 +01:00
Russell King 73068ce3b5 drm/armada: fix overlay when partially off-screen
Fix the start address calculation when overlay is partially off screen.
fb->bits_per_pixel is not set for YUV formats, and is always zero, which
led to the first component always starting at zero.

Use drm_format_plane_cpp() instead.

This also revealed a problem in that YUYV formats toggle the U/V data
for odd pixel start address offsets.  We try to rectify that by
toggling the U/V swap, which for the most part works, but seemingly
introduces a flicker for one scan frame of swapped U/V.

However, these changes result in an overall improvement.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-07-15 16:45:29 +01:00
Russell King 98fb74f4ec drm/armada: convert overlay to use drm_plane_helper_check_update()
Use drm_plane_helper_check_update() rather than our own code to validate
and limit the size of the displayed image.  As we are able to support
scaling, permit the full scaling ability.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-07-15 16:45:29 +01:00
Russell King 41dbb2dba2 drm/armada: fix incorrect overlay plane cleanup
The Armada overlay plane wasn't being properly cleaned up as it was
missing a call to drm_plane_cleanup().  It also wasn't freeing the
right type of pointer (although we were still freeing the right
pointer value.)

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-07-15 16:45:29 +01:00
Russell King 070f3f6bae drm/armada: fix missing overlay wake-up
Nothing was waking up the overlay plane wait queue, so we were fully
reliant on the HZ/25 wait timing out to make progress.  Fix the lack
of wake-up.

We were also mis-handling the wait_event_timeout() return value - this
returns an unsigned integer of the remaining time, or zero on timeout
and the condition evaluated false.  Checking this for less than zero
is not sane.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-07-15 16:45:29 +01:00
Russell King 96f60e37dc DRM: Armada: Add Armada DRM driver
This patch adds support for the pair of LCD controllers on the Marvell
Armada 510 SoCs.  This driver supports:
- multiple contiguous scanout buffers for video and graphics
- shm backed cacheable buffer objects for X pixmaps for Vivante GPU
  acceleration
- dual lcd0 and lcd1 crt operation
- video overlay on each LCD crt via DRM planes
- page flipping of the main scanout buffers
- DRM prime for buffer export/import

This driver is trivial to extend to other Armada SoCs.

Included in this commit is the core driver with no output support; output
support is platform and encoder driver dependent.

Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-10-12 10:13:40 +01:00