linux/drivers/gpu, branch v3.2.62

drm/radeon: avoid leaking edid data

2014-08-06T17:07:38Z

commit 0ac66effe7fcdee55bda6d5d10d3372c95a41920 upstream. In some cases we fetch the edid in the detect() callback in order to determine what sort of monitor is connected. If that happens, don't fetch the edid again in the get_modes() callback or we will leak the edid. Signed-off-by: Alex Deucher Signed-off-by: Ben Hutchings

drm/radeon/dp: return -EIO for flags not zero case

2014-08-06T17:07:37Z

commit f6be5e64500abbba44e191e1ca0f3366c7d0291b upstream. If there are error flags in the aux transaction return -EIO rather than -EBUSY. -EIO restarts the whole transaction while -EBUSY jus retries. Fixes problematic aux transfers. Bug: https://bugs.freedesktop.org/show_bug.cgi?id=80684 Signed-off-by: Alex Deucher [bwh: Backported to 3.2: error code is returned directly here] Signed-off-by: Ben Hutchings

drm/vmwgfx: Fix incorrect write to read-only register v2:

2014-08-06T17:07:34Z

commit 4e578080ed3262ed2c3985868539bc66218d25c0 upstream. Commit "drm/vmwgfx: correct fb_fix_screeninfo.line_length", while fixing a vmwgfx fbdev bug, also writes the pitch to a supposedly read-only register: SVGA_REG_BYTES_PER_LINE, while it should be (and also in fact is) written to SVGA_REG_PITCHLOCK. This patch is Cc'd stable because of the unknown effects writing to this register might have, particularly on older device versions. v2: Updated log message. Cc: Christopher Friedt Tested-by: Christopher Friedt Signed-off-by: Thomas Hellstrom Reviewed-by: Jakob Bornecrantz Signed-off-by: Ben Hutchings

drm: fix NULL pointer access by wrong ioctl

2014-07-11T12:33:55Z

commit 1539fb9bd405ee32282ea0a38404f9e008ac5b7a upstream. If user uses wrong ioctl command with _IOC_NONE and argument size greater than 0, it can cause NULL pointer access from memset of line 463. If _IOC_NONE, don't memset to 0 for kdata. Signed-off-by: Zhaowei Yuan Reviewed-by: David Herrmann Signed-off-by: Dave Airlie [bwh: Backported to 3.2: adjust indentation] Signed-off-by: Ben Hutchings

drm/radeon: stop poisoning the GART TLB

2014-07-11T12:33:49Z

commit 0986c1a55ca64b44ee126a2f719a6e9f28cbe0ed upstream. When we set the valid bit on invalid GART entries they are loaded into the TLB when an adjacent entry is loaded. This poisons the TLB with invalid entries which are sometimes not correctly removed on TLB flush. For stable inclusion the patch probably needs to be modified a bit. Signed-off-by: Christian König Signed-off-by: Alex Deucher [bwh: Backported to 3.2: R600_PTE_GART is not defined and we list all the flags indvidually] Signed-off-by: Ben Hutchings

drm/radeon: only apply hdmi bpc pll flags when encoder mode is hdmi

2014-07-11T12:33:45Z

commit 7d5ab3009a8ca777174f6f469277b3922d56fd4b upstream. May fix display issues with non-HDMI displays. Signed-off-by: Alex Deucher Signed-off-by: Ben Hutchings

drm/radeon/atom: fix dithering on certain panels

2014-07-11T12:33:45Z

commit 642528355c694f5ed68f6bff9ff520326a249f99 upstream. We need to specify the encoder mode as LVDS for eDP when using the Crtc_Source atom table in order to properly set up the FMT hardware. bug: https://bugs.freedesktop.org/show_bug.cgi?id=73911 Signed-off-by: Alex Deucher Signed-off-by: Ben Hutchings

drm/radeon: fix typo in radeon_connector_is_dp12_capable()

2014-07-11T12:33:45Z

commit af5d36539dfe043f1cf0f8b7334d6bb12cd14e75 upstream. We were checking the ext clock rather than the display clock. Noticed by ArtForz on IRC. Signed-off-by: Alex Deucher Signed-off-by: Ben Hutchings

drm/i915: Only copy back the modified fields to userspace from execbuffer

2014-07-11T12:33:37Z

commit 9aab8bff7aa3bee567213ad3c1fdfb217bb980a2 upstream. We only want to modifiy a single field in the userspace view of the execbuffer command buffer, so explicitly change that rather than copy everything back again. This serves two purposes: 1. The single fields are much cheaper to copy (constant size so the copy uses special case code) and much smaller than the whole array. 2. We modify the array for internal use that need to be masked from the user. Note: We need this backported since without it the next bugfix will blow up when userspace recycles batchbuffers and relocations. Signed-off-by: Chris Wilson Cc: Daniel Vetter Signed-off-by: Daniel Vetter [bwh: Backported to 3.2: to_user_ptr() is open-coded] Signed-off-by: Ben Hutchings

drm/i915: s/DRM_ERROR/DRM_DEBUG in i915_gem_execbuffer.c

2014-07-11T12:33:37Z

commit ff240199b6a3b0bec5ae9b6d26403dad38e8cb19 upstream. These are all user-trigerable, so tune down their loudness a notch. For some of these we have i-g-t tests (because they prevent newly-discovered bugs), without this patches running the test suite leaves behind a dirty dmesg. Reviewed-by: Chris Wilson Signed-Off-by: Daniel Vetter [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings