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drm/i915/icl: 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.

Based on the CNL patch by Nanley Chery.

v2: Rebase.

Cc: Anuj Phogat <anuj.phogat@intel.com>
Cc: Nanley Chery <nanley.g.chery@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Requested-by: Anuj Phogat <anuj.phogat@intel.com>
Tested-by: Anuj Phogat <anuj.phogat@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180130134918.32283-10-paulo.r.zanoni@intel.com
This commit is contained in:
Paulo Zanoni 2018-01-30 11:49:18 -02:00
parent 225701fc20
commit 164daaf23c
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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@ -1452,7 +1452,7 @@ static const struct reg_whitelist {
} reg_read_whitelist[] = { {
.offset_ldw = RING_TIMESTAMP(RENDER_RING_BASE),
.offset_udw = RING_TIMESTAMP_UDW(RENDER_RING_BASE),
.gen_mask = INTEL_GEN_MASK(4, 10),
.gen_mask = INTEL_GEN_MASK(4, 11),
.size = 8
} };