Mesa (master): ac/radeonsi: fix CIK copy max size
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Fri Aug 31 05:12:04 UTC 2018
Module: Mesa
Branch: master
Commit: 2c1f249f2b61be50222411bc0d41c095004232ed
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2c1f249f2b61be50222411bc0d41c095004232ed
Author: Dave Airlie <airlied at redhat.com>
Date: Wed Aug 29 13:52:15 2018 +1000
ac/radeonsi: fix CIK copy max size
While adding transfer queues to radv, I started writing some tests,
the first test I wrote fell over copying a buffer larger than this
limit.
Checked AMDVLK and found the correct limit.
Cc: <mesa-stable at lists.freedesktop.org>
Reviewed-by: Bas Nieuwenhuizen <bas at basnieuwenhuizen.nl>
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
---
src/amd/common/sid.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/amd/common/sid.h b/src/amd/common/sid.h
index d696c01d4d..851a823c72 100644
--- a/src/amd/common/sid.h
+++ b/src/amd/common/sid.h
@@ -9145,7 +9145,9 @@
#define SDMA_TS_SUB_OPCODE_GET_LOCAL_TIMESTAMP 0x1
#define SDMA_TS_SUB_OPCODE_GET_GLOBAL_TIMESTAMP 0x2
#define CIK_SDMA_PACKET_SRBM_WRITE 0xe
-#define CIK_SDMA_COPY_MAX_SIZE 0x3fffe0
+/* There is apparently an undocumented HW "feature" that
+ prevents the HW from copying past 256 bytes of (1 << 22) */
+#define CIK_SDMA_COPY_MAX_SIZE 0x3fff00
enum amd_cmp_class_flags {
S_NAN = 1 << 0, // Signaling NaN
More information about the mesa-commit
mailing list