diff options
| author | Marek Olšák <[email protected]> | 2018-05-01 20:16:19 -0400 |
|---|---|---|
| committer | Dylan Baker <[email protected]> | 2018-05-11 08:35:06 -0700 |
| commit | 1def4eaa5c29a7b25d626a37d55f1541273cf336 (patch) | |
| tree | 09974932a1da3047965e192d8b249c59d9b71041 | |
| parent | 421aedcc5932d2dc23fb18b721d1bbb2180c02d2 (diff) | |
radeonsi/gfx9: work around a GPU hang due to broken indirect indexing in LLVM
Fixes: 6d19120da85 "radeonsi/gfx9: workaround for INTERP with indirect indexing"
Cc: 18.1 <[email protected]>
Reviewed-by: Nicolai Hähnle <[email protected]>
(cherry picked from commit 597b9e881083533b987dbcbb8f679ca1eefff974)
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_get.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_get.c b/src/gallium/drivers/radeonsi/si_get.c index 04ab0f46bbd..6bfbc4d0c45 100644 --- a/src/gallium/drivers/radeonsi/si_get.c +++ b/src/gallium/drivers/radeonsi/si_get.c @@ -484,6 +484,15 @@ static int si_get_shader_param(struct pipe_screen* pscreen, !sscreen->llvm_has_working_vgpr_indexing) return 0; + /* Doing indirect indexing on GFX9 with LLVM 6.0 hangs. + * This means we don't support INTERP instructions with + * indirect indexing on inputs. + */ + if (shader == PIPE_SHADER_FRAGMENT && + !sscreen->llvm_has_working_vgpr_indexing && + HAVE_LLVM < 0x0700) + return 0; + /* TCS and TES load inputs directly from LDS or offchip * memory, so indirect indexing is always supported. * PS has to support indirect indexing, because we can't |