[01/10] drm/i915/dsb: feature flag added for display state buffer.

Submitted by Animesh Manna on Sept. 6, 2019, 6:21 p.m.

Details

Message ID 20190906182138.22818-1-animesh.manna@intel.com
State New
Headers show
Series "Series without cover letter" ( rev: 1 ) in Intel GFX - Try Bot

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Commit Message

Animesh Manna Sept. 6, 2019, 6:21 p.m.
Display State Buffer(DSB) is a new hardware capability, introduced
in GEN12 display. DSB allows a driver to batch-program display HW
registers.

Signed-off-by: Animesh Manna <animesh.manna@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          | 2 ++
 drivers/gpu/drm/i915/intel_device_info.h | 1 +
 2 files changed, 3 insertions(+)

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diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index db7480831e52..804bfe7aec2b 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1857,6 +1857,8 @@  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.
  *
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 92e0c2e0954c..e206f298f48e 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -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); \