linux-stable.git/drivers/gpu/drm, branch v5.7.11

drm/amd/powerplay: fix a crash when overclocking Vega M

2020-07-29T08:19:59+00:00

commit 88bb16ad998a0395fe4b346b7d3f621aaa0a2324 upstream.

Avoid kernel crash when vddci_control is SMU7_VOLTAGE_CONTROL_NONE and
vddci_voltage_table is empty. It has been tested on Intel Hades Canyon
(i7-8809G).

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208489
Fixes: ac7822b0026f ("drm/amd/powerplay: add smumgr support for VEGAM (v2)")
Reviewed-by: Evan Quan 
Signed-off-by: Qiu Wenbo 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: Fix NULL dereference in dpm sysfs handlers

2020-07-29T08:19:59+00:00

commit 38e0c89a19fd13f28d2b4721035160a3e66e270b upstream.

NULL dereference occurs when string that is not ended with space or
newline is written to some dpm sysfs interface (for example pp_dpm_sclk).
This happens because strsep replaces the tmp with NULL if the delimiter
is not present in string, which is then dereferenced by tmp[0].

Reproduction example:
sudo sh -c 'echo -n 1 > /sys/class/drm/card0/device/pp_dpm_sclk'

Signed-off-by: Paweł Gronowski 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: fix preemption unit test

2020-07-29T08:19:53+00:00

[ Upstream commit d845a2051b6b673fab4229b920ea04c7c4352b51 ]

Remove signaled jobs from job list and ensure the
job was indeed preempted.

Signed-off-by: Jack Xiao 
Reviewed-by: Hawking Zhang 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/amdgpu/gfx10: fix race condition for kiq

2020-07-29T08:19:53+00:00

[ Upstream commit 7d65a577bb58d4f27a3398a4c0cb0b00ab7d0511 ]

During preemption test for gfx10, it uses kiq to trigger
gfx preemption, which would result in race condition
with flushing TLB for kiq.

Signed-off-by: Jack Xiao 
Reviewed-by: Hawking Zhang 
Acked-by: Christian König 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm: sun4i: hdmi: Fix inverted HPD result

2020-07-29T08:19:43+00:00

[ Upstream commit baa1841eb797eadce6c907bdaed7cd6f01815404 ]

When the extra HPD polling in sun4i_hdmi was removed, the result of
HPD was accidentally inverted.

Fix this by inverting the check.

Fixes: bda8eaa6dee7 ("drm: sun4i: hdmi: Remove extra HPD polling")
Signed-off-by: Chen-Yu Tsai 
Tested-by: Mans Rullgard 
Signed-off-by: Maxime Ripard 
Link: https://patchwork.freedesktop.org/patch/msgid/20200711011030.21997-1-wens@kernel.org
Signed-off-by: Sasha Levin

drm/amd/display: add dmcub check on RENOIR

2020-07-29T08:19:37+00:00

[ Upstream commit 3b2e973dff59d88bee1d814ddf8762a24fc02b60 ]

RENOIR loads dmub fw not dmcu, check dmcu only will prevent loading iram,
it breaks backlight control.

Bug: https://bugzilla.kernel.org/show_bug.cgi?id=208277
Acked-by: Alex Deucher 
Reviewed-by: Nicholas Kazlauskas 
Signed-off-by: Aaron Ma 
Signed-off-by: Alex Deucher 
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin

drm/amd/display: Check DMCU Exists Before Loading

2020-07-29T08:19:37+00:00

[ Upstream commit 17bdb4a82fe5014c8aa5b2103c80c5729744a096 ]

Signed-off-by: Jerry (Fangzhi) Zuo 
Reviewed-by: Hersen Wu 
Acked-by: Aurabindo Pillai 
Signed-off-by: Alex Deucher 
Signed-off-by: Sasha Levin

drm/nouveau/nouveau: fix page fault on device private memory

2020-07-29T08:19:37+00:00

[ Upstream commit ed710a6ed797430026aa5116dd0ab22378798b69 ]

If system memory is migrated to device private memory and no GPU MMU
page table entry exists, the GPU will fault and call hmm_range_fault()
to get the PFN for the page. Since the .dev_private_owner pointer in
struct hmm_range is not set, hmm_range_fault returns an error which
results in the GPU program stopping with a fatal fault.
Fix this by setting .dev_private_owner appropriately.

Fixes: 08ddddda667b ("mm/hmm: check the device private page owner in hmm_range_fault()")
Cc: stable@vger.kernel.org
Signed-off-by: Ralph Campbell 
Reviewed-by: Jason Gunthorpe 
Signed-off-by: Ben Skeggs 
Signed-off-by: Sasha Levin

drm/nouveau/i2c/g94-: increase NV_PMGR_DP_AUXCTL_TRANSACTREQ timeout

2020-07-29T08:19:36+00:00

[ Upstream commit 0156e76d388310a490aeb0f2fbb5b284ded3aecc ]

Tegra TRM says worst-case reply time is 1216us, and this should fix some
spurious timeouts that have been popping up.

Signed-off-by: Ben Skeggs 
Signed-off-by: Sasha Levin

drm/i915/perf: Use GTT when saving/restoring engine GPR

2020-07-22T07:34:29+00:00

commit aee62e02c48bd62b9b07f5e297ecfc9aaa964937 upstream.

MI_STORE_REGISTER_MEM and MI_LOAD_REGISTER_MEM need to know which
translation to use when saving restoring the engine general purpose
registers to and from the GT scratch. Since GT scratch is mapped to
ggtt, we need to set an additional bit in the command to use GTT.

Fixes: daed3e44396d17 ("drm/i915/perf: implement active wait for noa configurations")
Suggested-by: Prathap Kumar Valsan 
Signed-off-by: Umesh Nerlige Ramappa 
Reviewed-by: Lionel Landwerlin 
Reviewed-by: Chris Wilson 
Link: https://patchwork.freedesktop.org/patch/msgid/20200709224504.11345-1-chris@chris-wilson.co.uk
Signed-off-by: Chris Wilson 
(cherry picked from commit e43ff99c8deda85234e6233e0f4af6cb09566a37)
Signed-off-by: Jani Nikula 
Signed-off-by: Greg Kroah-Hartman