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path: root/drivers/gpu/drm/i915/display/intel_cursor.c
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Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_cursor.c')
-rw-r--r--drivers/gpu/drm/i915/display/intel_cursor.c63
1 files changed, 49 insertions, 14 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_cursor.c b/drivers/gpu/drm/i915/display/intel_cursor.c
index 2dde7ac88..0d3da55e1 100644
--- a/drivers/gpu/drm/i915/display/intel_cursor.c
+++ b/drivers/gpu/drm/i915/display/intel_cursor.c
@@ -22,6 +22,7 @@
#include "intel_frontbuffer.h"
#include "intel_psr.h"
#include "intel_psr_regs.h"
+#include "intel_vblank.h"
#include "skl_watermark.h"
#include "gem/i915_gem_object.h"
@@ -45,12 +46,23 @@ static u32 intel_cursor_base(const struct intel_plane_state *plane_state)
return base + plane_state->view.color_plane[0].offset;
}
-static u32 intel_cursor_position(const struct intel_plane_state *plane_state)
+static u32 intel_cursor_position(const struct intel_crtc_state *crtc_state,
+ const struct intel_plane_state *plane_state,
+ bool early_tpt)
{
int x = plane_state->uapi.dst.x1;
int y = plane_state->uapi.dst.y1;
u32 pos = 0;
+ /*
+ * Formula from Bspec:
+ * MAX(-1 * <Cursor vertical size from CUR_CTL base on cursor mode
+ * select setting> + 1, CUR_POS Y Position - Update region Y position
+ */
+ if (early_tpt)
+ y = max(-1 * drm_rect_height(&plane_state->uapi.dst) + 1,
+ y - crtc_state->psr2_su_area.y1);
+
if (x < 0) {
pos |= CURSOR_POS_X_SIGN;
x = -x;
@@ -272,7 +284,7 @@ static void i845_cursor_update_arm(struct intel_plane *plane,
size = CURSOR_HEIGHT(height) | CURSOR_WIDTH(width);
base = intel_cursor_base(plane_state);
- pos = intel_cursor_position(plane_state);
+ pos = intel_cursor_position(crtc_state, plane_state, false);
}
/* On these chipsets we can only modify the base/size/stride
@@ -501,17 +513,24 @@ static void i9xx_cursor_update_sel_fetch_arm(struct intel_plane *plane,
const struct intel_crtc_state *crtc_state,
const struct intel_plane_state *plane_state)
{
- struct drm_i915_private *i915 = to_i915(plane->base.dev);
+ struct drm_i915_private *dev_priv = to_i915(plane->base.dev);
enum pipe pipe = plane->pipe;
if (!crtc_state->enable_psr2_sel_fetch)
return;
- if (drm_rect_height(&plane_state->psr2_sel_fetch_area) > 0)
- intel_de_write_fw(i915, PLANE_SEL_FETCH_CTL(pipe, plane->id),
+ if (drm_rect_height(&plane_state->psr2_sel_fetch_area) > 0) {
+ if (crtc_state->enable_psr2_su_region_et) {
+ u32 val = intel_cursor_position(crtc_state, plane_state,
+ true);
+ intel_de_write_fw(dev_priv, CURPOS_ERLY_TPT(pipe), val);
+ }
+
+ intel_de_write_fw(dev_priv, PLANE_SEL_FETCH_CTL(pipe, plane->id),
plane_state->ctl);
- else
+ } else {
i9xx_cursor_disable_sel_fetch_arm(plane, crtc_state);
+ }
}
/* TODO: split into noarm+arm pair */
@@ -534,7 +553,7 @@ static void i9xx_cursor_update_arm(struct intel_plane *plane,
fbc_ctl = CUR_FBC_EN | CUR_FBC_HEIGHT(height - 1);
base = intel_cursor_base(plane_state);
- pos = intel_cursor_position(plane_state);
+ pos = intel_cursor_position(crtc_state, plane_state, false);
}
/*
@@ -645,12 +664,14 @@ intel_legacy_cursor_update(struct drm_plane *_plane,
{
struct intel_plane *plane = to_intel_plane(_plane);
struct intel_crtc *crtc = to_intel_crtc(_crtc);
+ struct drm_i915_private *i915 = to_i915(plane->base.dev);
struct intel_plane_state *old_plane_state =
to_intel_plane_state(plane->base.state);
struct intel_plane_state *new_plane_state;
struct intel_crtc_state *crtc_state =
to_intel_crtc_state(crtc->base.state);
struct intel_crtc_state *new_crtc_state;
+ struct intel_vblank_evade_ctx evade;
int ret;
/*
@@ -743,13 +764,25 @@ intel_legacy_cursor_update(struct drm_plane *_plane,
*/
crtc_state->active_planes = new_crtc_state->active_planes;
- /*
- * Technically we should do a vblank evasion here to make
- * sure all the cursor registers update on the same frame.
- * For now just make sure the register writes happen as
- * quickly as possible to minimize the race window.
- */
- local_irq_disable();
+ intel_vblank_evade_init(crtc_state, crtc_state, &evade);
+
+ intel_psr_lock(crtc_state);
+
+ if (!drm_WARN_ON(&i915->drm, drm_crtc_vblank_get(&crtc->base))) {
+ /*
+ * TODO: maybe check if we're still in PSR
+ * and skip the vblank evasion entirely?
+ */
+ intel_psr_wait_for_idle_locked(crtc_state);
+
+ local_irq_disable();
+
+ intel_vblank_evade(&evade);
+
+ drm_crtc_vblank_put(&crtc->base);
+ } else {
+ local_irq_disable();
+ }
if (new_plane_state->uapi.visible) {
intel_plane_update_noarm(plane, crtc_state, new_plane_state);
@@ -760,6 +793,8 @@ intel_legacy_cursor_update(struct drm_plane *_plane,
local_irq_enable();
+ intel_psr_unlock(crtc_state);
+
intel_plane_unpin_fb(old_plane_state);
out_free: