Commit 147dbfbc authored by David Zhang's avatar David Zhang Committed by Alex Deucher
Browse files

drm/amdgpu: remove the VI hardware semaphore in ring sync 



Signed-off-by: default avatarDavid Zhang <david1.zhang@amd.com>

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
parent bd5c97bc

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

+4 −5
Original line number Diff line number Diff line
@@ -3783,11 +3783,10 @@ static bool gfx_v8_0_ring_emit_semaphore(struct amdgpu_ring *ring, 
	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) {

		amdgpu_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));

		amdgpu_ring_write(ring, lower_32_bits(addr));

		amdgpu_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);

	} else {

	    ring->adev->asic_type == CHIP_TONGA)

		/* 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));