On Thu, May 2, 2013 at 11:55 AM, Marek Olšák <mar...@gmail.com> wrote: > AFAIK, there are 16 fetch shader resources. These are the resource > slots for r600: > > [offset .. +count] > PS: 0 .. +160 > VS: 160 .. +160 > FS: 320 .. +16 > GS: 336 .. +160
It's bigger on evergreen: PS: 0.. +176 VS: 176.. +160 GS: 336.. +160 HS: 496.. +160 LS: 656.. +160 CS: 816.. +176 FS: 992.. +32 > > Marek > > On Thu, May 2, 2013 at 5:04 PM, Vadim Girlin <vadimgir...@gmail.com> wrote: >> On 05/02/2013 11:06 AM, Michel Dänzer wrote: >>> >>> On Don, 2013-05-02 at 05:45 +0200, Marek Olšák wrote: >>>> >>>> --- >>>> src/gallium/drivers/radeonsi/radeonsi_pipe.c | 2 +- >>>> 1 file changed, 1 insertion(+), 1 deletion(-) >>>> >>>> diff --git a/src/gallium/drivers/radeonsi/radeonsi_pipe.c >>>> b/src/gallium/drivers/radeonsi/radeonsi_pipe.c >>>> index c923c67..3b9be54 100644 >>>> --- a/src/gallium/drivers/radeonsi/radeonsi_pipe.c >>>> +++ b/src/gallium/drivers/radeonsi/radeonsi_pipe.c >>>> @@ -481,7 +481,7 @@ static int r600_get_shader_param(struct pipe_screen* >>>> pscreen, unsigned shader, e >>>> case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: >>>> return 32; >>>> case PIPE_SHADER_CAP_MAX_INPUTS: >>>> - return 32; >>>> + return shader == PIPE_SHADER_VERTEX ? 16 : 32; >>> >>> >>> For r600g, I assume the limit of 16 is due to the number of hardware >>> registers available for vertex shader inputs, >> >> >> AFAIK there is no such limit on r600 hw as well. IIRC there are at least 32 >> registers for semantic fetch mapping, but I think we aren't limited even by >> this because we can use non-semantic fetches (and currently we don't use >> semantic fetches at all). Am I missing something? >> >> Vadim >> >> >>> but as of SI the state is >>> no longer stored in registers but in resource descriptors in a BO. In >>> theory, I think we could even support many more inputs than 32, but >>> let's just leave it at that for now. >>> >> >> _______________________________________________ >> mesa-dev mailing list >> mesa-dev@lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/mesa-dev > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
