Commit graph

11 commits

Author SHA1 Message Date
ReinUsesLisp 4e35177e23 shader_ir: Implement VOTE
Implement VOTE using Nvidia's intrinsics. Documentation about these can
be found here
https://developer.nvidia.com/reading-between-threads-shader-intrinsics

Instead of using portable ARB instructions I opted to use Nvidia
intrinsics because these are the closest we have to how Tegra X1
hardware renders.

To stub VOTE on non-Nvidia drivers (including nouveau) this commit
simulates a GPU with a warp size of one, returning what is meaningful
for the instruction being emulated:

* anyThreadNV(value) -> value
* allThreadsNV(value) -> value
* allThreadsEqualNV(value) -> true

ballotARB, also known as "uint64_t(activeThreadsNV())", emits

VOTE.ANY Rd, PT, PT;

on nouveau's compiler. This doesn't match exactly to Nvidia's code

VOTE.ALL Rd, PT, PT;

Which is emulated with activeThreadsNV() by this commit. In theory this
shouldn't really matter since .ANY, .ALL and .EQ affect the predicates
(set to PT on those cases) and not the registers.
2019-08-21 14:50:38 -03:00
Fernando Sahmkow 11f4e739bd Shader_Ir: Implement F16 Variants of F2F, F2I, I2F.
This commit takes care of implementing the F16 Variants of the 
conversion instructions and makes sure conversions are done.
2019-07-20 17:38:25 -04:00
ReinUsesLisp 45c162444d shader/half_set_predicate: Fix HSETP2 implementation 2019-07-19 22:21:22 -03:00
Fernando Sahmkow d5533b440c shader_ir: Unify blocks in decompiled shaders. 2019-07-09 08:14:39 -04:00
Fernando Sahmkow 8a6fc529a9 shader_ir: Implement BRX & BRA.CC 2019-07-09 08:14:37 -04:00
Fernando Sahmkow d1812316e1 texture_cache: Style and Corrections 2019-06-20 21:24:47 -04:00
ReinUsesLisp 9097301d92 shader: Implement bindless images 2019-06-20 21:38:33 -03:00
ReinUsesLisp 06c4ce8645 shader: Decode SUST and implement backing image functionality 2019-06-20 21:38:33 -03:00
ReinUsesLisp fe8e6618f2 shader: Split SSY and PBK stack
Hardware testing revealed that SSY and PBK push to a different stack,
allowing code like this:

        SSY label1;
        PBK label2;
        SYNC;
label1: PBK;
label2: EXIT;
2019-06-07 02:18:27 -03:00
ReinUsesLisp 769a50661a shader/node: Minor changes
Reflect std::shared_ptr nature of Node on initializers and remove
constant members in nodes.

Add some commentaries.
2019-06-06 20:03:33 -03:00
ReinUsesLisp e1b3be7ced shader: Move Node declarations out of the shader IR header
Analysis passes do not have a good reason to depend on shader_ir.h to
work on top of nodes. This splits node-related declarations to their own
file and leaves the IR in shader_ir.h
2019-06-06 20:02:37 -03:00