drm/msm: fix timeout calculation

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The 'timeout' value comes from userspace (CLOCK_MONOTONIC), but
converting this directly to jiffies doesn't take into account the
initial jiffies count at boot, which may differ from the base time
of CLOCK_MONOTONIC.

TODO: add ktime_delta_jiffies() when rebasing on 4.1 and use that
instead of ktime_sub/ktime_to_timespec/timespec_to_jiffies combo (as
suggested by Arnd)

v2: switch over from 'struct timespec' to ktime_t throughout, since
'struct timespec' will be deprecated (as suggested by Arnd)
v3: minor cosmetic tweaks

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Rob Clark <robdclark@gmail.com>

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This commit is contained in:

Rob Clark 2015-05-11 11:50:03 -04:00

parent 865807d0a9

commit 56c2da8338

4 changed files with 21 additions and 16 deletions

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4

drivers/gpu/drm/msm/msm_atomic.c

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26

drivers/gpu/drm/msm/msm_drv.c

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4

drivers/gpu/drm/msm/msm_drv.h

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3

drivers/gpu/drm/msm/msm_gem.c

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