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drm/i915/cnl: Allow the reg_read ioctl to read the RCS TIMESTAMP register

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This enables the Mesa driver to advertise support for ARB_timer_query, and
thus an OpenGL version higher than 3.2.

Suggested-by: Ben Widawsky <ben@bwidawsk.net>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170905184507.30046-1-nanley.g.chery@intel.com
This commit is contained in:
Nanley Chery 2017-09-05 11:45:07 -07:00 committed by Rodrigo Vivi
parent 5d95c24867
commit f1294585d8
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/i915/intel_uncore.c
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@ -1251,7 +1251,7 @@ static const struct register_whitelist {
} whitelist[] = {
{ .offset_ldw = RING_TIMESTAMP(RENDER_RING_BASE),
.offset_udw = RING_TIMESTAMP_UDW(RENDER_RING_BASE),
.size = 8, .gen_bitmask = GEN_RANGE(4, 9) },
.size = 8, .gen_bitmask = GEN_RANGE(4, 10) },
};
int i915_reg_read_ioctl(struct drm_device *dev,