[PATCH DDX] sna: flush gtt when psr_active

[rodrigo.vivi at gmail.com (Rodrigo Vivi)]

Signed-off-by: Rodrigo Vivi <rodrigo.vivi at gmail.com>
---
 src/sna/sna_accel.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/src/sna/sna_accel.c b/src/sna/sna_accel.c
index 1663fe3..c1df7c9 100644
--- a/src/sna/sna_accel.c
+++ b/src/sna/sna_accel.c
@@ -14174,6 +14174,19 @@ static bool has_shadow(struct sna *sna)
 	     __FUNCTION__, sna->mode.shadow_flip));
 	return !sna->mode.shadow_flip;
 }
+static bool psr_active(struct sna *sna)
+{
+	drm_i915_getparam_t gp;
+	int psr_active = 0;
+	int ret;
+
+	VG_CLEAR(gp);
+	gp.param = 27;
+	gp.value = &psr_active;
+
+	ret = drmIoctl(sna->kgem.fd, DRM_IOCTL_I915_GETPARAM, &gp);
+	return ret == 0 && psr_active;
+}
 
 static bool start_flush(struct sna *sna, struct sna_pixmap *scanout)
 {
@@ -14193,7 +14206,7 @@ static bool start_flush(struct sna *sna, struct sna_pixmap *scanout)
 	if (!scanout)
 		return false;
 
-	if (sna->flags & SNA_FLUSH_GTT && scanout->gpu_bo->gtt_dirty) {
+	if (psr_active(sna) && scanout->gpu_bo->gtt_dirty) {
 		scanout->gpu_bo->needs_flush = true;
 		return true;
 	}
@@ -14219,7 +14232,7 @@ static bool stop_flush(struct sna *sna, struct sna_pixmap *scanout)
 	if (!scanout)
 		return false;
 
-	if (sna->flags & SNA_FLUSH_GTT && scanout->gpu_bo->gtt_dirty) {
+	if (psr_active(sna) && scanout->gpu_bo->gtt_dirty) {
 		scanout->gpu_bo->needs_flush = true;
 		return true;
 	}
-- 
1.7.11.7