From 814f31457e9ae83d4f1e39236f704721b279b73d Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Marek=20Ol=C5=A1=C3=A1k?= Date: Tue, 20 Oct 2015 18:26:02 +0200 Subject: 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 Reviewed-by: Brian Paul --- src/gallium/drivers/r300/r300_screen.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'src/gallium/drivers/r300/r300_screen.c') 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; } -- cgit v1.1