xf86-video-intel: src/sna/kgem.c src/sna/kgem.h src/sna/sna_present.c
Chris Wilson
ickle at kemper.freedesktop.org
Tue Mar 24 14:08:30 PDT 2015
src/sna/kgem.c | 29 +++++++++++++++++++++++++++++
src/sna/kgem.h | 1 +
src/sna/sna_present.c | 1 +
3 files changed, 31 insertions(+)
New commits:
commit d377fd3d11a6ed29f8bce9e7b05a8db82e33764e
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date: Tue Mar 24 21:05:58 2015 +0000
sna: Detect Y-tiled scanout feature
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index 6f16cba..83c7510 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -84,6 +84,7 @@ search_snoop_cache(struct kgem *kgem, unsigned int num_pages, unsigned flags);
#define DBG_NO_HANDLE_LUT 0
#define DBG_NO_WT 0
#define DBG_NO_WC_MMAP 0
+#define DBG_NO_SCANOUT_Y 0
#define DBG_DUMP 0
#define DBG_NO_MALLOC_CACHE 0
@@ -1231,6 +1232,30 @@ static bool test_has_create2(struct kgem *kgem)
#endif
}
+static bool test_can_scanout_y(struct kgem *kgem)
+{
+ struct drm_mode_fb_cmd arg;
+ bool ret = false;
+
+ if (DBG_NO_SCANOUT_Y)
+ return false;
+
+ VG_CLEAR(arg);
+ arg.width = 32;
+ arg.height = 32;
+ arg.pitch = 4*32;
+ arg.bpp = 32;
+ arg.depth = 24;
+ arg.handle = gem_create(kgem->fd, 1);
+
+ if (gem_set_tiling(kgem->fd, arg.handle, I915_TILING_Y, arg.pitch))
+ ret = do_ioctl(kgem->fd, DRM_IOCTL_MODE_ADDFB, &arg) == 0;
+ do_ioctl(kgem->fd, DRM_IOCTL_MODE_RMFB, &arg.fb_id);
+ gem_close(kgem->fd, arg.handle);
+
+ return ret;
+}
+
static bool test_has_secure_batches(struct kgem *kgem)
{
if (DBG_NO_SECURE_BATCHES)
@@ -1604,6 +1629,10 @@ void kgem_init(struct kgem *kgem, int fd, struct pci_device *dev, unsigned gen)
DBG(("%s: can render to Y-tiled surfaces? %d\n", __FUNCTION__,
kgem->can_render_y));
+ kgem->can_scanout_y = test_can_scanout_y(kgem);
+ DBG(("%s: can render to Y-tiled surfaces? %d\n", __FUNCTION__,
+ kgem->can_scanout_y));
+
kgem->has_secure_batches = test_has_secure_batches(kgem);
DBG(("%s: can use privileged batchbuffers? %d\n", __FUNCTION__,
kgem->has_secure_batches));
diff --git a/src/sna/kgem.h b/src/sna/kgem.h
index f98d3b6..51072e2 100644
--- a/src/sna/kgem.h
+++ b/src/sna/kgem.h
@@ -190,6 +190,7 @@ struct kgem {
uint32_t can_blt_cpu :1;
uint32_t can_render_y :1;
+ uint32_t can_scanout_y :1;
uint16_t fence_max;
uint16_t half_cpu_cache_pages;
diff --git a/src/sna/sna_present.c b/src/sna/sna_present.c
index 836c89d..d6638db 100644
--- a/src/sna/sna_present.c
+++ b/src/sna/sna_present.c
@@ -583,6 +583,7 @@ get_flip_bo(PixmapPtr pixmap)
}
if (priv->gpu_bo->tiling == I915_TILING_Y &&
+ !sna->kgem.can_scanout_y &&
!sna_pixmap_change_tiling(pixmap, I915_TILING_X)) {
DBG(("%s: invalid Y-tiling, cannot convert\n", __FUNCTION__));
return NULL;
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