Comment # 3
on bug 97305
from Matias N. Goldberg
>> BEGIN PATCH diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c index 88f4f20..6a2d5bc 100644 --- a/src/gallium/drivers/radeonsi/si_pipe.c +++ b/src/gallium/drivers/radeonsi/si_pipe.c @@ -363,10 +363,11 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param) case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT: case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT: + return 256; case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS: return 4; case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT: - return HAVE_LLVM >= 0x0309 ? 4 : 0; + return HAVE_LLVM >= 0x0309 ? 256 : 0; case PIPE_CAP_GLSL_FEATURE_LEVEL: if (pscreen->get_shader_param(pscreen, PIPE_SHADER_COMPUTE, << END PATCH I'm playing safe by going with 256 bytes with everyone, based on the overwhelming amount of reports (on the left top there's a dropdown, select "All"); unless someone wants to go through the trouble of identifying each card. Even in DX12 256 alignment is by spec: http://delphigl.de/glcapsviewer/gl_stats_caps_single.php?listreportsbycap=GL_UNIFORM_BUFFER_OFFSET_ALIGNMENT http://delphigl.de/glcapsviewer/gl_stats_caps_single.php?listreportsbycap=GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT http://delphigl.de/glcapsviewer/gl_stats_caps_single.php?listreportsbycap=GL_SHADER_STORAGE_BUFFER_OFFSET_ALIGNMENT I believe this patch could potentially increase radeonsi's compatibility greatly and should be tested against popular game titles.
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