diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 42 |
1 files changed, 2 insertions, 40 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 8f8ec37ecd88..aa20f626249a 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -4762,44 +4762,6 @@ static void gfx_v8_0_ring_emit_fence_gfx(struct amdgpu_ring *ring, u64 addr, } -/** - * gfx_v8_0_ring_emit_semaphore - emit a semaphore on the CP ring - * - * @ring: amdgpu ring buffer object - * @semaphore: amdgpu semaphore object - * @emit_wait: Is this a sempahore wait? - * - * Emits a semaphore signal/wait packet to the CP ring and prevents the PFP - * from running ahead of semaphore waits. - */ -static bool gfx_v8_0_ring_emit_semaphore(struct amdgpu_ring *ring, - struct amdgpu_semaphore *semaphore, - bool emit_wait) -{ - uint64_t addr = semaphore->gpu_addr; - unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL; - - if (ring->adev->asic_type == CHIP_TOPAZ || - ring->adev->asic_type == CHIP_TONGA || - ring->adev->asic_type == CHIP_FIJI) - /* we got a hw semaphore bug in VI TONGA, return false to switch back to sw fence wait */ - return false; - else { - amdgpu_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 2)); - amdgpu_ring_write(ring, lower_32_bits(addr)); - amdgpu_ring_write(ring, upper_32_bits(addr)); - amdgpu_ring_write(ring, sel); - } - - if (emit_wait && (ring->type == AMDGPU_RING_TYPE_GFX)) { - /* Prevent the PFP from running ahead of the semaphore wait */ - amdgpu_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0)); - amdgpu_ring_write(ring, 0x0); - } - - return true; -} - static void gfx_v8_0_ring_emit_vm_flush(struct amdgpu_ring *ring, unsigned vm_id, uint64_t pd_addr) { @@ -5145,7 +5107,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_gfx = { .parse_cs = NULL, .emit_ib = gfx_v8_0_ring_emit_ib_gfx, .emit_fence = gfx_v8_0_ring_emit_fence_gfx, - .emit_semaphore = gfx_v8_0_ring_emit_semaphore, + .emit_semaphore = NULL, .emit_vm_flush = gfx_v8_0_ring_emit_vm_flush, .emit_gds_switch = gfx_v8_0_ring_emit_gds_switch, .emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush, @@ -5161,7 +5123,7 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_compute = { .parse_cs = NULL, .emit_ib = gfx_v8_0_ring_emit_ib_compute, .emit_fence = gfx_v8_0_ring_emit_fence_compute, - .emit_semaphore = gfx_v8_0_ring_emit_semaphore, + .emit_semaphore = NULL, .emit_vm_flush = gfx_v8_0_ring_emit_vm_flush, .emit_gds_switch = gfx_v8_0_ring_emit_gds_switch, .emit_hdp_flush = gfx_v8_0_ring_emit_hdp_flush, |