Only VI can do 32-bit denormals at full rate while previous generations can do it only for 64-bit and 16-bit.
This fixes some dEQP tests with the highp type qualifier. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99343 Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com> --- src/gallium/drivers/radeonsi/si_shader.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/src/gallium/drivers/radeonsi/si_shader.c b/src/gallium/drivers/radeonsi/si_shader.c index 5dfbd6603a..e9cb11883f 100644 --- a/src/gallium/drivers/radeonsi/si_shader.c +++ b/src/gallium/drivers/radeonsi/si_shader.c @@ -6361,8 +6361,10 @@ int si_compile_llvm(struct si_screen *sscreen, si_shader_binary_read_config(binary, conf, 0); - /* Enable 64-bit and 16-bit denormals, because there is no performance - * cost. + /* Enable denormals when there is no performance cost. + * + * Only VI can do 32-bit denormals at full rate while previous + * generations can do it only for 64-bit and 16-bit. * * If denormals are enabled, all floating-point output modifiers are * ignored. @@ -6373,7 +6375,10 @@ int si_compile_llvm(struct si_screen *sscreen, * have to stop using those. * - SI & CI would be very slow. */ - conf->float_mode |= V_00B028_FP_64_DENORMS; + if (sscreen->b.chip_class >= VI) + conf->float_mode |= V_00B028_FP_ALL_DENORMS; + else + conf->float_mode |= V_00B028_FP_64_DENORMS; FREE(binary->config); FREE(binary->global_symbol_offsets); -- 2.11.0 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
