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authorAnuj Phogat <anuj.phogat@gmail.com>2020-11-05 10:33:44 -0800
committerAnuj Phogat <anuj.phogat@gmail.com>2020-11-09 21:29:04 +0000
commit3c4e43e72be3bcb70d7cfb9abcaf77d4c0c75f57 (patch)
tree7803258ac5ef1bfbe891f7ae345305f1396fc519 /src/mesa/drivers
parenta1a365e8188bd72be27404dd669cad90468bc09f (diff)
intel: Pointer to SCISSOR_RECT array should be 64B aligned20.3-branchpoint
v2: Apply the workaround to all gen hardawre Ref: GEN:BUG:1409725701 Signed-off-by: Anuj Phogat <anuj.phogat@gmail.com> Reviewed-by: Ivan Briano <ivan.briano@intel.com> Reviewed-by: Nanley Chery <nanley.g.chery@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7463>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/i965/genX_state_upload.c10
1 files changed, 8 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/genX_state_upload.c b/src/mesa/drivers/dri/i965/genX_state_upload.c
index 5ebe2cac6b6..75dccad00bf 100644
--- a/src/mesa/drivers/dri/i965/genX_state_upload.c
+++ b/src/mesa/drivers/dri/i965/genX_state_upload.c
@@ -2365,10 +2365,16 @@ genX(upload_scissor_state)(struct brw_context *brw)
/* BRW_NEW_VIEWPORT_COUNT */
const unsigned viewport_count = brw->clip.viewport_count;
-
+ /* GEN:BUG:1409725701:
+ * "The viewport-specific state used by the SF unit (SCISSOR_RECT) is
+ * stored as an array of up to 16 elements. The location of first
+ * element of the array, as specified by Pointer to SCISSOR_RECT, should
+ * be aligned to a 64-byte boundary.
+ */
+ const unsigned alignment = 64;
scissor_map = brw_state_batch(
brw, GENX(SCISSOR_RECT_length) * sizeof(uint32_t) * viewport_count,
- 32, &scissor_state_offset);
+ alignment, &scissor_state_offset);
/* _NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT */