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)
v3: -Rebased.
v4: -Add separate plane hook for async flip case (Ville)
v5: -Rebased.
Signed-off-by: Karthik B S <karthik.b.s@xxxxxxxxx>
Signed-off-by: Vandita Kulkarni <vandita.kulkarni@xxxxxxxxx>
---
drivers/gpu/drm/i915/display/intel_display.c | 6 +++++
drivers/gpu/drm/i915/display/intel_sprite.c | 25 ++++++++++++++++++++
drivers/gpu/drm/i915/i915_reg.h | 1 +
3 files changed, 32 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b8ff032195d9..4773f39e5924 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4766,6 +4766,12 @@ u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
const struct drm_intel_sprite_colorkey *key = &plane_state->ckey;
u32 plane_ctl;
+ /* During Async flip, no other updates are allowed */
+ if (crtc_state->uapi.async_flip) {
+ plane_ctl |= PLANE_CTL_ASYNC_FLIP;
+ return plane_ctl;
+ }
+
plane_ctl = PLANE_CTL_ENABLE;
if (INTEL_GEN(dev_priv) < 10 && !IS_GEMINILAKE(dev_priv)) {
diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c b/drivers/gpu/drm/i915/display/intel_sprite.c
index c26ca029fc0a..3747482e8fa3 100644
--- a/drivers/gpu/drm/i915/display/intel_sprite.c
+++ b/drivers/gpu/drm/i915/display/intel_sprite.c
@@ -603,6 +603,24 @@ icl_program_input_csc(struct intel_plane *plane,
PLANE_INPUT_CSC_POSTOFF(pipe, plane_id, 2), 0x0);
}
+static void
+skl_program_async_surface_address(struct drm_i915_private *dev_priv,
+ const struct intel_plane_state *plane_state,
+ enum pipe pipe, enum plane_id plane_id,
+ u32 surf_addr)
+{
+ unsigned long irqflags;
+ u32 plane_ctl = plane_state->ctl;
+
+ spin_lock_irqsave(&dev_priv->uncore.lock, irqflags);
+
+ intel_de_write_fw(dev_priv, PLANE_CTL(pipe, plane_id), plane_ctl);
+ intel_de_write_fw(dev_priv, PLANE_SURF(pipe, plane_id),
+ intel_plane_ggtt_offset(plane_state) + surf_addr);
+
+ spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
+}
+
static void
skl_program_plane(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
@@ -631,6 +649,13 @@ skl_program_plane(struct intel_plane *plane,
u32 keymsk, keymax;
u32 plane_ctl = plane_state->ctl;
+ /* During Async flip, no other updates are allowed */
+ if (crtc_state->uapi.async_flip) {
+ skl_program_async_surface_address(dev_priv, plane_state,
+ pipe, plane_id, surf_addr);
+ return;
+ }
+
plane_ctl |= skl_plane_ctl_crtc(crtc_state);
if (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv))
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 8cee06314d5d..19aad4199874 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -6935,6 +6935,7 @@ 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 */
--
2.22.0
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