linux-stable.git/drivers/gpu/drm/mgag200, branch v5.4.2

drm/mgag200: Provide ddc symlink in connector sysfs directory

2019-07-31T14:33:09+00:00

Use the ddc pointer provided by the generic connector.

Signed-off-by: Andrzej Pietrasiewicz 
Reviewed-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Reviewed-by: Emil Velikov 
Signed-off-by: Neil Armstrong 
Link: https://patchwork.freedesktop.org/patch/msgid/d9e8d4281f6778e5598410a44f1b29c85df1c16d.1564161140.git.andrzej.p@collabora.com

drm/mgag200: Don't unpin the current cursor image's buffer.

2019-07-24T07:48:30+00:00

Currently the displayed cursor buffer might be evicted from video memory.
Not unpinning the BO fixes this problem. At this point, pixels_current
also references the BO and it will be unpinned during the next cursor
update.

Signed-off-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Fixes: 94dc57b10399 ("drm/mgag200: Rewrite cursor handling")
Cc: Gerd Hoffmann 
Cc: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723075425.24028-4-tzimmermann@suse.de

drm/mgag200: Set cursor scanout address to correct BO

2019-07-24T07:48:03+00:00

The hardware requires the correct memory address of the buffer. Currently
the same BO's address is programmed unconditionally, so only every second
cursor update actually becomes visible.

Signed-off-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Fixes: 94dc57b10399 ("drm/mgag200: Rewrite cursor handling")
Cc: Gerd Hoffmann 
Cc: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723075425.24028-3-tzimmermann@suse.de

drm/mgag200: Pin displayed cursor BO to video memory

2019-07-24T07:47:43+00:00

The cursor BO has to be pinned to video ram while it's being displayed.
With the current code, the BO might be pinned to system memory instead.
The patch fixes this problem.

Signed-off-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Fixes: 94dc57b10399 ("drm/mgag200: Rewrite cursor handling")
Cc: Gerd Hoffmann 
Cc: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20190723075425.24028-2-tzimmermann@suse.de

drm/mgag200: Replace struct mga_fbdev with generic framebuffer emulation

2019-07-09T08:25:47+00:00

This patch replaces mgag200's framebuffer console with DRM's generic
implememtation. All respective code is being removed from the driver.

The console is set up with a shadow buffer. The actual buffer object is
not permanently pinned in video ram, but just another buffer object that
the driver moves in and out of vram as necessary. The driver's function
mga_crtc_do_set_base() used to contain special handling for the framebuffer
console. With the new generic framebuffer, the driver does not need this
code an longer.

For consistency, this patch also changes the preferred framebuffer depth.
The original code used 24 bpp by default and 32 bpp for the framebuffer. As
24 bpp is not well supported by userspace anyway, setting 32 bpp as default
makes sense.

v2:
	* rely on fbdev helpers error messages
	* document changes to preferred depth
	* dirty function no longer required

Signed-off-by: Thomas Zimmermann 
Acked-by: Noralf Trønnes 
Link: https://patchwork.freedesktop.org/patch/315832/

drm/mgag200: drop use of drmP.h

2019-06-30T07:58:08+00:00

Drop use of the deprecated drmP.h header file.
Replace with necessary include files to fix build.

Signed-off-by: Sam Ravnborg 
Acked-by: Thomas Zimmermann 
Cc: Daniel Vetter 
Cc: David Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20190623103542.30697-5-sam@ravnborg.org

drm/mgag200: Replace struct mga_framebuffer with GEM framebuffer helpers

2019-06-27T17:19:04+00:00

The mgag200 driver's struct mga_framebuffer is a buffer object with GEM
interface. There are already GEM framebuffer helpers that implement the
same functionality. Convert mgag200 to these.

Signed-off-by: Thomas Zimmermann 
Acked-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20190627080909.30471-1-tzimmermann@suse.de

drm/mgag200: add in missing { } around if block

2019-06-27T08:18:28+00:00

There is an if block that is missing the { } curly brackets. Add
these in.

Addresses-Coverity: ("Structurally dead code")
Fixes: 94dc57b10399 ("drm/mgag200: Rewrite cursor handling")
Signed-off-by: Colin Ian King 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20190614143911.21806-1-colin.king@canonical.com

Merge v5.2-rc5 into drm-next

2019-06-19T10:07:29+00:00

Maarten needs -rc4 backmerged so he can pull in the fbcon notifier
removal topic branch into drm-misc-next.

Signed-off-by: Daniel Vetter

drm/mgag200: Rewrite cursor handling

2019-06-13T11:37:28+00:00

The cursor handling in mgag200 is complicated to understand. It touches a
number of different BOs, but doesn't really use all of them.

Rewriting the cursor update reduces the amount of cursor state. There are
two BOs for double-buffered HW updates. The source BO updates the one that
is currently not displayed and then switches buffers. Explicit BO locking
has been removed from the code. BOs are simply pinned and unpinned in video
RAM.

v2:
	* pin cursor BOs to current location

Signed-off-by: Thomas Zimmermann 
Acked-by: Gerd Hoffmann 
Link: https://patchwork.freedesktop.org/patch/msgid/20190613073041.29350-8-tzimmermann@suse.de