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authorMichel Dänzer <michel.daenzer@amd.com>2017-07-27 16:11:19 +0900
committerMichel Dänzer <michel@daenzer.net>2017-08-02 18:55:23 +0900
commit5309bde0c4e28adf2b167191c6d7011a19e31eed (patch)
tree8aef7c128f089c6e8f822f80efa47d25a665d346
parent9bc3eef74452d924f9101c024f66ad9b14c404c8 (diff)
Allow DRI page flipping when some CRTCs use separate scanout buffers
As long as the CRTC we're synchronizing to doesn't. v2: * Remove redundant checks from can_exchange which still prevented DRI2 page flipping Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
-rw-r--r--man/radeon.man2
-rw-r--r--src/drmmode_display.c2
-rw-r--r--src/drmmode_display.h4
-rw-r--r--src/radeon_dri2.c30
-rw-r--r--src/radeon_present.c12
5 files changed, 16 insertions, 34 deletions
diff --git a/man/radeon.man b/man/radeon.man
index 3e1723f2..1e9a7beb 100644
--- a/man/radeon.man
+++ b/man/radeon.man
@@ -285,7 +285,7 @@ Set the default value of the per-output 'TearFree' property, which controls
tearing prevention using the hardware page flipping mechanism. TearFree is
on for any CRTC associated with one or more outputs with TearFree on. Two
separate scanout buffers need to be allocated for each CRTC with TearFree
-on. While TearFree is on for any CRTC, it currently prevents clients from using
+on. While TearFree is on for any CRTC, it may prevent clients from using
DRI page flipping. If this option is set, the default value of the property
is 'on' or 'off' accordingly. If this option isn't set, the default value of the
property is
diff --git a/src/drmmode_display.c b/src/drmmode_display.c
index 309ccbd6..03b8a482 100644
--- a/src/drmmode_display.c
+++ b/src/drmmode_display.c
@@ -3014,7 +3014,7 @@ Bool radeon_do_pageflip(ScrnInfoPtr scrn, ClientPtr client,
for (i = 0; i < config->num_crtc; i++) {
crtc = config->crtc[i];
- if (!crtc->enabled)
+ if (!drmmode_crtc_can_flip(crtc))
continue;
flipdata->flip_count++;
diff --git a/src/drmmode_display.h b/src/drmmode_display.h
index 4378be86..f859377c 100644
--- a/src/drmmode_display.h
+++ b/src/drmmode_display.h
@@ -146,7 +146,9 @@ drmmode_crtc_can_flip(xf86CrtcPtr crtc)
drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
return crtc->enabled &&
- drmmode_crtc->pending_dpms_mode == DPMSModeOn;
+ drmmode_crtc->pending_dpms_mode == DPMSModeOn &&
+ !drmmode_crtc->rotate.bo &&
+ !drmmode_crtc->scanout[drmmode_crtc->scanout_id].bo;
}
diff --git a/src/radeon_dri2.c b/src/radeon_dri2.c
index 70751b0b..4b059897 100644
--- a/src/radeon_dri2.c
+++ b/src/radeon_dri2.c
@@ -720,18 +720,6 @@ can_exchange(ScrnInfoPtr pScrn, DrawablePtr draw,
struct dri2_buffer_priv *back_priv = back->driverPrivate;
PixmapPtr front_pixmap;
PixmapPtr back_pixmap = back_priv->pixmap;
- xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
- int i;
-
- for (i = 0; i < xf86_config->num_crtc; i++) {
- xf86CrtcPtr crtc = xf86_config->crtc[i];
- drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
-
- if (crtc->enabled &&
- (crtc->rotatedData ||
- drmmode_crtc->scanout[drmmode_crtc->scanout_id].bo))
- return FALSE;
- }
if (!update_front(draw, front))
return FALSE;
@@ -754,9 +742,10 @@ can_exchange(ScrnInfoPtr pScrn, DrawablePtr draw,
}
static Bool
-can_flip(ScrnInfoPtr pScrn, DrawablePtr draw,
+can_flip(xf86CrtcPtr crtc, DrawablePtr draw,
DRI2BufferPtr front, DRI2BufferPtr back)
{
+ ScrnInfoPtr pScrn = crtc->scrn;
RADEONInfoPtr info = RADEONPTR(pScrn);
xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
int num_crtcs_on;
@@ -771,15 +760,10 @@ can_flip(ScrnInfoPtr pScrn, DrawablePtr draw,
return FALSE;
for (i = 0, num_crtcs_on = 0; i < config->num_crtc; i++) {
- xf86CrtcPtr crtc = config->crtc[i];
- drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
-
- if (!drmmode_crtc || drmmode_crtc->rotate.bo ||
- drmmode_crtc->scanout[drmmode_crtc->scanout_id].bo)
- return FALSE;
-
- if (drmmode_crtc_can_flip(crtc))
+ if (drmmode_crtc_can_flip(config->crtc[i]))
num_crtcs_on++;
+ else if (config->crtc[i] == crtc)
+ return FALSE;
}
return num_crtcs_on > 0 && can_exchange(pScrn, draw, front, back);
@@ -859,7 +843,7 @@ static void radeon_dri2_frame_event_handler(xf86CrtcPtr crtc, uint32_t seq,
switch (event->type) {
case DRI2_FLIP:
- if (can_flip(scrn, drawable, event->front, event->back) &&
+ if (can_flip(crtc, drawable, event->front, event->back) &&
radeon_dri2_schedule_flip(crtc,
event->client,
drawable,
@@ -1352,7 +1336,7 @@ static int radeon_dri2_schedule_swap(ClientPtr client, DrawablePtr draw,
current_msc &= 0xffffffff;
/* Flips need to be submitted one frame before */
- if (can_flip(scrn, draw, front, back)) {
+ if (can_flip(crtc, draw, front, back)) {
swap_info->type = DRI2_FLIP;
flip = 1;
}
diff --git a/src/radeon_present.c b/src/radeon_present.c
index 85da655d..4d43733e 100644
--- a/src/radeon_present.c
+++ b/src/radeon_present.c
@@ -243,14 +243,7 @@ radeon_present_check_unflip(ScrnInfoPtr scrn)
return FALSE;
for (i = 0, num_crtcs_on = 0; i < config->num_crtc; i++) {
- xf86CrtcPtr crtc = config->crtc[i];
- drmmode_crtc_private_ptr drmmode_crtc = crtc->driver_private;
-
- if (!drmmode_crtc || drmmode_crtc->rotate.bo ||
- drmmode_crtc->scanout[drmmode_crtc->scanout_id].bo)
- return FALSE;
-
- if (drmmode_crtc_can_flip(crtc))
+ if (drmmode_crtc_can_flip(config->crtc[i]))
num_crtcs_on++;
}
@@ -286,6 +279,9 @@ radeon_present_check_flip(RRCrtcPtr crtc, WindowPtr window, PixmapPtr pixmap,
radeon_present_get_pixmap_tiling_flags(info, screen_pixmap))
return FALSE;
+ if (!drmmode_crtc_can_flip(crtc->devPrivate))
+ return FALSE;
+
return radeon_present_check_unflip(scrn);
}