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| author | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2016-09-10 16:45:32 +0200 |
|---|---|---|
| committer | Samuel Pitoiset <samuel.pitoiset@gmail.com> | 2016-10-07 00:18:57 +0200 |
| commit | 56a0bed2c18e45da3808b0bc74a53a20d2c8e8f2 (patch) | |
| tree | 4514558547b2969f58e0c4b626a976164ee288ce | |
| parent | 11e75fffeb4afc5be0021477f11e5a18a6ff6abf (diff) | |
nvc0: expose ARB_compute_variable_group_size
Only expose 512 threads/block on Fermi to not be limited by
32 GPRs/thread.
v4: - use 512 threads on Fermi, 1024 on Kepler+
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
| -rw-r--r-- | src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c index df6c6af6037..afcb08ba6ef 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c @@ -448,6 +448,12 @@ nvc0_screen_get_compute_param(struct pipe_screen *pscreen, RET(((uint64_t []) { 1024, 1024, 64 })); case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK: RET((uint64_t []) { 1024 }); + case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK: + if (obj_class >= NVE4_COMPUTE_CLASS) { + RET((uint64_t []) { 1024 }); + } else { + RET((uint64_t []) { 512 }); + } case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE: /* g[] */ RET((uint64_t []) { 1ULL << 40 }); case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE: /* s[] */ @@ -478,8 +484,6 @@ nvc0_screen_get_compute_param(struct pipe_screen *pscreen, RET((uint32_t []) { 512 }); /* FIXME: arbitrary limit */ case PIPE_COMPUTE_CAP_ADDRESS_BITS: RET((uint32_t []) { 64 }); - case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK: - RET((uint64_t []) { 0 }); default: return 0; } |