diff options
| author | Chris Wilson <chris@chris-wilson.co.uk> | 2012-06-28 12:24:27 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2012-06-28 12:37:35 +0100 |
| commit | 47e6bfa4f40cf7efcfe7eee24d2512d737fd7e89 (patch) | |
| tree | ad9343df39051bf4711c09f1458bdd69180c8b11 /src/sna | |
| parent | 93e77ee019248fe77483e83f2210d584bb5d1be2 (diff) | |
sna: Force use of per-crtc scanout if the offset is too large
On gen4+, the scanout offset into a tiled surface is specified through
the DSPTILEOFF register and limited to 12bits of precision. So if we
have a CRTC positioned in that nether-region, we need to allocate a
separate per-crtc pixmap for it and perform shadowing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'src/sna')
| -rw-r--r-- | src/sna/sna.h | 1 | ||||
| -rw-r--r-- | src/sna/sna_display.c | 9 |
2 files changed, 10 insertions, 0 deletions
diff --git a/src/sna/sna.h b/src/sna/sna.h index 2e8925b7..d4cb42f6 100644 --- a/src/sna/sna.h +++ b/src/sna/sna.h @@ -234,6 +234,7 @@ struct sna { struct sna_mode { drmModeResPtr kmode; + int max_tile_offset; int shadow_active; DamagePtr shadow_damage; diff --git a/src/sna/sna_display.c b/src/sna/sna_display.c index fed7411d..648d5c53 100644 --- a/src/sna/sna_display.c +++ b/src/sna/sna_display.c @@ -790,6 +790,14 @@ static bool use_shadow(struct sna *sna, xf86CrtcPtr crtc) return true; } + if (crtc->x >= sna->mode.max_tile_offset || + crtc->y >= sna->mode.max_tile_offset) { + DBG(("%s: offset too large (%d, %d) >= %d\n", + __FUNCTION__, + crtc->x, crtc->y, sna->mode.max_tile_offset)); + return true; + } + transform = NULL; if (crtc->transformPresent) transform = &crtc->transform; @@ -2201,6 +2209,7 @@ Bool sna_mode_pre_init(ScrnInfoPtr scrn, struct sna *sna) "failed to get resources: %s\n", strerror(errno)); return FALSE; } + mode->max_tile_offset = 4096; set_size_range(sna); |