linux.git/drivers/gpu/drm/xen, branch v5.3.2

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

drm/xen/xen_drm_front_gem.c: convert to use vm_map_pages()

2019-05-14T16:47:50+00:00

Convert to use vm_map_pages() to map range of kernel memory to user vma.

Link: http://lkml.kernel.org/r/ff8e10ba778d79419c66ee8215bccf01560540fd.1552921225.git.jrdr.linux@gmail.com
Signed-off-by: Souptick Joarder 
Reviewed-by: Oleksandr Andrushchenko 
Cc: Boris Ostrovsky 
Cc: David Airlie 
Cc: Heiko Stuebner 
Cc: Joerg Roedel 
Cc: Joonsoo Kim 
Cc: Juergen Gross 
Cc: Kees Cook 
Cc: "Kirill A. Shutemov" 
Cc: Kyungmin Park 
Cc: Marek Szyprowski 
Cc: Matthew Wilcox 
Cc: Mauro Carvalho Chehab 
Cc: Michal Hocko 
Cc: Mike Rapoport 
Cc: Pawel Osciak 
Cc: Peter Zijlstra 
Cc: Rik van Riel 
Cc: Robin Murphy 
Cc: Russell King 
Cc: Sandy Huang 
Cc: Stefan Richter 
Cc: Stephen Rothwell 
Cc: Thierry Reding 
Cc: Vlastimil Babka 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drm/drv: drm_dev_unplug(): Move out drm_dev_put() call

2019-02-21T11:11:58+00:00

This makes it possible to use drm_dev_unplug() with the upcoming
devm_drm_dev_init() which will do drm_dev_put() in its release callback.

Cc: Alex Deucher 
Cc: Christian König 
Cc: David (ChunMing) Zhou 
Cc: Dave Airlie 
Cc: Sean Paul 
Cc: Oleksandr Andrushchenko 
Cc: Daniel Vetter 
Signed-off-by: Noralf Trønnes 
Acked-by: Oleksandr Andrushchenko 
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20190208140103.28919-3-noralf@tronnes.org

drm/xen-front: Fix mmap attributes for display buffers

2019-02-04T06:39:31+00:00

When GEM backing storage is allocated those are normal pages,
so there is no point using pgprot_writecombine while mmaping.
This fixes mismatch of buffer pages' memory attributes between
the frontend and backend which may cause screen artifacts.

Fixes: c575b7eeb89f ("drm/xen-front: Add support for Xen PV display frontend")

Signed-off-by: Oleksandr Andrushchenko 
Suggested-by: Julien Grall 
Acked-by: Julien Grall 
Link: https://patchwork.freedesktop.org/patch/msgid/20190129150422.19867-1-andr2000@gmail.com

drm/xen-front: Drop pointless static qualifier in fb_destroy()

2019-02-04T06:31:57+00:00

There is no need to have the 'struct drm_framebuffer *fb' variable
static since new value always be assigned before use it.

Signed-off-by: YueHaibing 
Reviewed-by: Oleksandr Andrushchenko 
Signed-off-by: Oleksandr Andrushchenko 
Link: https://patchwork.freedesktop.org/patch/msgid/1548504338-114487-1-git-send-email-yuehaibing@huawei.com

drm: Split out drm_probe_helper.h

2019-01-24T12:20:42+00:00

Having the probe helper stuff (which pretty much everyone needs) in
the drm_crtc_helper.h file (which atomic drivers should never need) is
confusing. Split them out.

To make sure I actually achieved the goal here I went through all
drivers. And indeed, all atomic drivers are now free of
drm_crtc_helper.h includes.

v2: Make it compile. There was so much compile fail on arm drivers
that I figured I'll better not include any of the acks on v1.

v3: Massive rebase because i915 has lost a lot of drmP.h includes, but
not all: Through drm_crtc_helper.h > drm_modeset_helper.h -> drmP.h
there was still one, which this patch largely removes. Which means
rolling out lots more includes all over.

This will also conflict with ongoing drmP.h cleanup by others I
expect.

v3: Rebase on top of atomic bochs.

v4: Review from Laurent for bridge/rcar/omap/shmob/core bits:
- (re)move some of the added includes, use the better include files in
  other places (all suggested from Laurent adopted unchanged).
- sort alphabetically

v5: Actually try to sort them, and while at it, sort all the ones I
touch.

v6: Rebase onto i915 changes.

v7: Rebase once more.

Acked-by: Harry Wentland 
Acked-by: Sam Ravnborg 
Cc: Sam Ravnborg 
Cc: Jani Nikula 
Cc: Laurent Pinchart 
Acked-by: Rodrigo Vivi 
Acked-by: Benjamin Gaignard 
Acked-by: Jani Nikula 
Acked-by: Neil Armstrong 
Acked-by: Oleksandr Andrushchenko 
Acked-by: CK Hu 
Acked-by: Alex Deucher 
Acked-by: Sam Ravnborg 
Reviewed-by: Laurent Pinchart 
Acked-by: Liviu Dudau 
Signed-off-by: Daniel Vetter 
Cc: linux-arm-kernel@lists.infradead.org
Cc: virtualization@lists.linux-foundation.org
Cc: etnaviv@lists.freedesktop.org
Cc: linux-samsung-soc@vger.kernel.org
Cc: intel-gfx@lists.freedesktop.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-amlogic@lists.infradead.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: spice-devel@lists.freedesktop.org
Cc: amd-gfx@lists.freedesktop.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-stm32@st-md-mailman.stormreply.com
Cc: linux-tegra@vger.kernel.org
Cc: xen-devel@lists.xen.org
Link: https://patchwork.freedesktop.org/patch/msgid/20190117210334.13234-1-daniel.vetter@ffwll.ch

Merge tag 'drm-misc-next-2019-01-07-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

2019-01-09T19:58:52+00:00

drm-misc-next for 5.1:

UAPI Changes:

Cross-subsystem Changes:
  - Turn dma-buf fence sequence numbers into 64 bit numbers

Core Changes:
  - Move to a common helper for the DP MST hotplug for radeon, i915 and
    amdgpu
  - i2c improvements for drm_dp_mst
  - Removal of drm_syncobj_cb
  - Introduction of an helper to create and attach the TV margin properties

Driver Changes:
  - Improve cache flushes for v3d
  - Reflection support for vc4
  - HDMI overscan support for vc4
  - Add implicit fencing support for rockchip and sun4i
  - Switch to generic fbdev emulation for virtio

Signed-off-by: Dave Airlie 

[airlied: applied amdgpu merge fixup]
From: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20190107180333.amklwycudbsub3s5@flea

drm/xen-front: Use Xen common shared buffer implementation

2018-12-18T17:16:13+00:00

Use page directory based shared buffer implementation
now available as common code for Xen frontend drivers.

Remove flushing of shared buffer on page flip as this
workaround needs a proper fix.

Signed-off-by: Oleksandr Andrushchenko 
Reviewed-by: Noralf Trønnes 
Signed-off-by: Boris Ostrovsky

drm/xen: Don't set the dpms hook

2018-12-12T10:56:45+00:00

Doesn't do anything for atomic.

Signed-off-by: Daniel Vetter 
Cc: Oleksandr Andrushchenko 
Cc: xen-devel@lists.xen.org
Reviewed-by: Alex Deucher 
Reviewed-by: Oleksandr Andrushchenko 
Link: https://patchwork.freedesktop.org/patch/msgid/20181210100359.22507-7-daniel.vetter@ffwll.ch

drm: Replace NULL with error value in drm_prime_pages_to_sg

2018-07-23T08:47:35+00:00

Dan Carpenter has reported that there is the following static checker
warning:
	drivers/gpu/drm/drm_prime.c:317 drm_gem_map_dma_buf()
	warn: 'sgt' can also be NULL

314	sgt = obj->dev->driver->gem_prime_get_sg_table(obj);
315
316	if (!IS_ERR(sgt)) {
317		if (!dma_map_sg_attrs(attach->dev, sgt->sgl, sgt->nents, dir,

Problematic functions are xen_drm_front_gem_get_sg_table and
drm_gem_cma_prime_get_sg_table. Fix those by replacing NULL with error value.

Signed-off-by: Oleksandr Andrushchenko 
Reported-by: Dan Carpenter 
Reviewed-by: Dan Carpenter 
Link: https://patchwork.freedesktop.org/patch/msgid/20180719093713.3643-1-andr2000@gmail.com