linux/drivers/gpu, branch v4.20

drm/ioctl: Fix Spectre v1 vulnerabilities

2018-12-20T07:13:29Z

nr is indirectly controlled by user-space, hence leading to a potential exploitation of the Spectre variant 1 vulnerability. This issue was detected with the help of Smatch: drivers/gpu/drm/drm_ioctl.c:805 drm_ioctl() warn: potential spectre issue 'dev->driver->ioctls' [r] drivers/gpu/drm/drm_ioctl.c:810 drm_ioctl() warn: potential spectre issue 'drm_ioctls' [r] (local cap) drivers/gpu/drm/drm_ioctl.c:892 drm_ioctl_flags() warn: potential spectre issue 'drm_ioctls' [r] (local cap) Fix this by sanitizing nr before using it to index dev->driver->ioctls and drm_ioctls. Notice that given that speculation windows are large, the policy is to kill the speculation on the first load and not worry if it can be completed with a dependent load/store [1]. [1] https://marc.info/?l=linux-kernel&m=152449131114778&w=2 Cc: stable@vger.kernel.org Signed-off-by: Gustavo A. R. Silva Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20181220000015.GA18973@embeddedor

Merge branch 'vmwgfx-fixes-4.20' of git://people.freedesktop.org/~thomash/linux into drm-fixes

2018-12-13T19:37:44Z

One regression fix for avoiding kernel OOM, one cleanup return fix. Signed-off-by: Dave Airlie From: Thomas Hellstrom Link: https://patchwork.freedesktop.org/patch/msgid/20181213122815.10581-1-thellstrom@vmware.com

drm/vmwgfx: Protect from excessive execbuf kernel memory allocations v3

2018-12-13T12:04:25Z

With the new validation code, a malicious user-space app could potentially submit command streams with enough buffer-object and resource references in them to have the resulting allocated validion nodes and relocations make the kernel run out of GFP_KERNEL memory. Protect from this by having the validation code reserve TTM graphics memory when allocating. Signed-off-by: Thomas Hellstrom Reviewed-by: Deepak Rawat --- v2: Removed leftover debug printouts

Merge branch 'mediatek-drm-fixes-4.20' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes

2018-12-12T23:55:13Z

Single bridge attachment fix. Signed-off-by: Dave Airlie From: CK Hu Link: https://patchwork.freedesktop.org/patch/msgid/1544407975.18825.3.camel@mtksdaap41

Merge branch 'linux-4.20' of git://github.com/skeggsb/linux into drm-fixes

2018-12-12T23:33:50Z

Three fixes: tegra regression fix display flushing fix mst cleanup fix. Signed-off-by: Dave Airlie From: Ben Skeggs Link: https://patchwork.freedesktop.org/patch/msgid/CACAvsv7WCPzjQZonk+eS1FgEUKirz-4LOrVpMUVMM=D-GjbVpg@mail.gmail.com

Merge branch 'drm-fixes-4.20' of git://people.freedesktop.org/~agd5f/linux into drm-fixes

2018-12-12T23:24:37Z

Fixes for 4.20: - Stability fixes for new polaris variants (e.g., RX590) - New vega pci ids - Vega20 smu fix - Ctx locking fix Signed-off-by: Dave Airlie From: Alex Deucher Link: https://patchwork.freedesktop.org/patch/msgid/20181212203022.3054-1-alexander.deucher@amd.com

Merge tag 'drm-misc-fixes-2018-12-12' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2018-12-12T21:25:10Z

- rockchip: Revert change causing WARN on shutdown (Brian) Cc: Brian Norris Signed-off-by: Dave Airlie From: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20181212204309.GA150523@art_vandelay

Merge tag 'drm-intel-fixes-2018-12-12-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

2018-12-12T21:22:47Z

- Two fixes to avoid GPU hangs (on Braswell and Gen3) Signed-off-by: Dave Airlie From: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/20181212134010.GA18900@jlahtine-desk.ger.corp.intel.com

Merge tag 'drm-intel-fixes-2018-12-07' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

2018-12-12T21:21:29Z

- Fix for system crash after GPU hang (Bugzilla #107945) - GVT fix for guest graphics corruption (https://github.com/intel/gvt-linux/issues/61) Signed-off-by: Dave Airlie From: Joonas Lahtinen Link: https://patchwork.freedesktop.org/patch/msgid/20181207104352.GA18214@jlahtine-desk.ger.corp.intel.com

drm/amdgpu: drop fclk/gfxclk ratio setting

2018-12-12T19:52:29Z

Since this is not needed any more on the latest SMC firmware. Signed-off-by: Evan Quan Acked-by: Feifei Xu Signed-off-by: Alex Deucher