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drm/i915/dsb: feature flag added for display state buffer.

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Display State Buffer(DSB) is a new hardware capability, introduced
in GEN12 display. DSB allows a driver to batch-program display HW
registers.

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Shashank Sharma <shashank.sharma@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190920115930.27829-2-animesh.manna@intel.com
This commit is contained in:
Animesh Manna 2019-09-20 17:29:21 +05:30 committed by Jani Nikula
parent 84af764918
commit 18febcb74e
2 changed files with 3 additions and 0 deletions
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2
drivers/gpu/drm/i915/i915_drv.h
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@ -1863,6 +1863,8 @@ static inline struct drm_i915_private *pdev_to_i915(struct pci_dev *pdev)
(BUILD_BUG_ON_ZERO(!__builtin_constant_p(n)) + \
INTEL_INFO(dev_priv)->gen == (n))
#define HAS_DSB(dev_priv) (INTEL_INFO(dev_priv)->display.has_dsb)
/*
* Return true if revision is in range [since,until] inclusive.
*

1
drivers/gpu/drm/i915/intel_device_info.h
View File

@ -135,6 +135,7 @@ enum intel_ppgtt_type {
func(has_csr); \
func(has_ddi); \
func(has_dp_mst); \
func(has_dsb); \
func(has_fbc); \
func(has_gmch); \
func(has_hotplug); \