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| author | Marek Olšák <marek.olsak@amd.com> | 2015-10-20 18:26:02 +0200 |
|---|---|---|
| committer | Marek Olšák <marek.olsak@amd.com> | 2015-10-20 18:27:11 +0200 |
| commit | 814f31457e9ae83d4f1e39236f704721b279b73d (patch) | |
| tree | d0677bba9f0815050c77e9edbaae8844bcac6d1b /src/gallium/drivers/r300/r300_screen.c | |
| parent | 921feb8782bdc3c459922858bee6d55919467436 (diff) | |
| download | external_mesa3d-814f31457e9ae83d4f1e39236f704721b279b73d.zip external_mesa3d-814f31457e9ae83d4f1e39236f704721b279b73d.tar.gz external_mesa3d-814f31457e9ae83d4f1e39236f704721b279b73d.tar.bz2 | |
gallium: add PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT
This avoids a serious r600g bug leading to a GPU hang.
The chances this bug will get fixed are pretty low now.
I deeply regret listening to others and not pushing this patch, leaving
other users with a GPU-crashing driver. Yes, it should be fixed
in the compiler and it's ugly, but users couldn't care less about that.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86720
Cc: 11.0 10.6 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Brian Paul <brianp@vmware.com>
Diffstat (limited to 'src/gallium/drivers/r300/r300_screen.c')
| -rw-r--r-- | src/gallium/drivers/r300/r300_screen.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c index c1c522b..a576abd 100644 --- a/src/gallium/drivers/r300/r300_screen.c +++ b/src/gallium/drivers/r300/r300_screen.c @@ -303,6 +303,8 @@ static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, e case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED: return 0; + case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT: + return 32; case PIPE_SHADER_CAP_PREFERRED_IR: return PIPE_SHADER_IR_TGSI; } @@ -359,6 +361,8 @@ static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, e case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED: return 0; + case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT: + return 32; case PIPE_SHADER_CAP_PREFERRED_IR: return PIPE_SHADER_IR_TGSI; } |