Mesa (master): freedreno/regs: document CS shared storage size bit
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Wed Jul 8 12:20:31 UTC 2020
Module: Mesa
Branch: master
Commit: fcac0b4fc9d5e569548d686a1481dfdd3fd01b2c
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fcac0b4fc9d5e569548d686a1481dfdd3fd01b2c
Author: Jonathan Marek <jonathan at marek.ca>
Date: Tue Jul 7 22:31:44 2020 -0400
freedreno/regs: document CS shared storage size bit
Signed-off-by: Jonathan Marek <jonathan at marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5797>
---
src/freedreno/registers/a6xx.xml | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/src/freedreno/registers/a6xx.xml b/src/freedreno/registers/a6xx.xml
index 8a541b7cfd9..84c939edac4 100644
--- a/src/freedreno/registers/a6xx.xml
+++ b/src/freedreno/registers/a6xx.xml
@@ -3193,7 +3193,16 @@ to upconvert to 32b float internally?
<reg32 offset="0xa9a8" name="SP_UNKNOWN_A9A8"/>
<!-- set for compute shaders, always 0x41 -->
- <reg32 offset="0xa9b1" name="SP_CS_UNKNOWN_A9B1" type="uint"/>
+ <reg32 offset="0xa9b1" name="SP_CS_UNKNOWN_A9B1" type="uint">
+ <doc>
+ bit 0 seems to toggle between 2k and 32k of shared storage
+ the ldl/stl offset seems to be rewritten to 0 when it is beyond
+ this limit. This is different from ldlw/stlw, which wraps at
+ 64k (and has 36k of storage on A640 - reads between 36k-64k
+ always return 0)
+ </doc>
+ <bitfield name="SHARED_SIZE_2K" pos="0" type="uint"/>
+ </reg32>
<!-- set for compute shaders, always 0x0 -->
<reg32 offset="0xa9b3" name="SP_CS_UNKNOWN_A9B3" type="uint"/>
More information about the mesa-commit
mailing list