Calculate height based on the slice bitfield rather than the size.
Same as Dave's CB fix.
Signed-off-by: Alex Deucher <alexdeucher@xxxxxxxxx>
---
drivers/gpu/drm/radeon/r600_cs.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index 0d29065..6291278 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -310,7 +310,7 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
/* Check depth buffer */
if (G_028800_STENCIL_ENABLE(track->db_depth_control) ||
G_028800_Z_ENABLE(track->db_depth_control)) {
- u32 nviews, bpe, ntiles, pitch, pitch_align, height, size;
+ u32 nviews, bpe, ntiles, pitch, pitch_align, height, size, slice_tile_max;
if (track->db_bo == NULL) {
dev_warn(p->dev, "z/stencil with no depth buffer\n");
return -EINVAL;
@@ -354,11 +354,11 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
} else {
size = radeon_bo_size(track->db_bo);
pitch = G_028000_PITCH_TILE_MAX(track->db_depth_size) + 1;
- height = size / (pitch * 8 * bpe);
- height &= ~0x7;
- if (!height)
- height = 8;
-
+ slice_tile_max = G_028000_SLICE_TILE_MAX(track->db_depth_size) + 1;
+ slice_tile_max *= 64;
+ height = slice_tile_max / (pitch * 8);
+ if (height > 8192)
+ height = 8192;
switch (G_028010_ARRAY_MODE(track->db_depth_info)) {
case V_028010_ARRAY_1D_TILED_THIN1:
pitch_align = (max((u32)8, (u32)(track->group_size / (8 * bpe))) / 8);
@@ -367,6 +367,8 @@ static int r600_cs_track_check(struct radeon_cs_parser *p)
__func__, __LINE__, pitch);
return -EINVAL;
}
+ /* don't break userspace */
+ height &= ~0x7;
if (!IS_ALIGNED(height, 8)) {
dev_warn(p->dev, "%s:%d db height (%d) invalid\n",
__func__, __LINE__, height);
--
1.7.1.1
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