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[v2,2/6] drm/i915: Add support for async flips in I915

Message ID 20200420094746.20409-3-karthik.b.s@intel.com (mailing list archive)
State New, archived
Headers show
Series Asynchronous flip implementation for i915 | expand

Commit Message

Karthik B S April 20, 2020, 9:47 a.m. UTC 
Set the Async Address Update Enable bit in plane ctl
when async flip is requested.

v2: -Move the Async flip enablement to individual patch (Paulo)

Signed-off-by: Karthik B S <karthik.b.s@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 +++
 drivers/gpu/drm/i915/i915_reg.h              | 1 +
 2 files changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3ce80634d047..cf8f5779dee4 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4766,6 +4766,9 @@  u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
 			plane_ctl |= PLANE_CTL_YUV_RANGE_CORRECTION_DISABLE;
 	}
 
+	if (crtc_state->uapi.async_flip)
+		plane_ctl |= PLANE_CTL_ASYNC_FLIP;
+
 	plane_ctl |= skl_plane_ctl_format(fb->format->format);
 	plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
 	plane_ctl |= skl_plane_ctl_rotate(rotation & DRM_MODE_ROTATE_MASK);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 9e192629d5e5..5a9a94a300ac 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6887,6 +6887,7 @@  enum {
 #define   PLANE_CTL_TILED_X			(1 << 10)
 #define   PLANE_CTL_TILED_Y			(4 << 10)
 #define   PLANE_CTL_TILED_YF			(5 << 10)
+#define   PLANE_CTL_ASYNC_FLIP			(1 << 9)
 #define   PLANE_CTL_FLIP_HORIZONTAL		(1 << 8)
 #define   PLANE_CTL_MEDIA_DECOMPRESSION_ENABLE	(1 << 4) /* TGL+ */
 #define   PLANE_CTL_ALPHA_MASK			(0x3 << 4) /* Pre-GLK */