From e640ba41ed1eaeecc735ebd18fa62f05577830cb Mon Sep 17 00:00:00 2001 From: Samuel Pitoiset Date: Tue, 3 Nov 2015 19:32:49 +0100 Subject: [PATCH] nvc0: handle NULL pointer in nvc0_get_compute_param() To get the size (in bytes) of a compute parameter, clover first calls get_compute_param() with a NULL data pointer. The RET() macro is based on nv50. Signed-off-by: Samuel Pitoiset Reviewed-by: Ilia Mirkin --- src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 45 ++++++++++++-------------- 1 file changed, 21 insertions(+), 24 deletions(-) diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c index 6aa4f0b..52ce2d5 100644 --- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c +++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c @@ -353,45 +353,42 @@ static int nvc0_screen_get_compute_param(struct pipe_screen *pscreen, enum pipe_compute_cap param, void *data) { - uint64_t *data64 = (uint64_t *)data; - uint32_t *data32 = (uint32_t *)data; const uint16_t obj_class = nvc0_screen(pscreen)->compute->oclass; +#define RET(x) do { \ + if (data) \ + memcpy(data, x, sizeof(x)); \ + return sizeof(x); \ +} while (0) + switch (param) { case PIPE_COMPUTE_CAP_GRID_DIMENSION: - data64[0] = 3; - return 8; + RET((uint64_t []) { 3 }); case PIPE_COMPUTE_CAP_MAX_GRID_SIZE: - data64[0] = (obj_class >= NVE4_COMPUTE_CLASS) ? 0x7fffffff : 65535; - data64[1] = 65535; - data64[2] = 65535; - return 24; + if (obj_class >= NVE4_COMPUTE_CLASS) { + RET(((uint64_t []) { 0x7fffffff, 65535, 65535 })); + } else { + RET(((uint64_t []) { 65535, 65535, 65535 })); + } case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE: - data64[0] = 1024; - data64[1] = 1024; - data64[2] = 64; - return 24; + RET(((uint64_t []) { 1024, 1024, 64 })); case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK: - data64[0] = 1024; - return 8; + RET((uint64_t []) { 1024 }); case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE: /* g[] */ - data64[0] = (uint64_t)1 << 40; - return 8; + RET((uint64_t []) { 1ULL << 40 }); case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE: /* s[] */ - data64[0] = 48 << 10; - return 8; + RET((uint64_t []) { 48 << 10 }); case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE: /* l[] */ - data64[0] = 512 << 10; - return 8; + RET((uint64_t []) { 512 << 10 }); case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE: /* c[], arbitrary limit */ - data64[0] = 4096; - return 8; + RET((uint64_t []) { 4096 }); case PIPE_COMPUTE_CAP_SUBGROUP_SIZE: - data32[0] = 32; - return 4; + RET((uint32_t []) { 32 }); default: return 0; } + +#undef RET } static void -- 2.7.4