From: Christian König Date: Fri, 12 Jan 2018 15:31:15 +0000 (+0100) Subject: drm/amdgpu: wire up emit_wreg for gfx v7 X-Git-Tag: v4.19~1144^2~30^2~247 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3f3e9de803c54822cb0faacaad021626977ab92a;p=platform%2Fkernel%2Flinux-rpi3.git drm/amdgpu: wire up emit_wreg for gfx v7 Needed for vm_flush unification. v2: handle compute rings as well Signed-off-by: Christian König Acked-by: Chunming Zhou Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c index e29c22a..fbce0c0 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c @@ -3290,6 +3290,19 @@ static void gfx_v7_0_ring_emit_vm_flush(struct amdgpu_ring *ring, } } +static void gfx_v7_0_ring_emit_wreg(struct amdgpu_ring *ring, + uint32_t reg, uint32_t val) +{ + int usepfp = (ring->funcs->type == AMDGPU_RING_TYPE_GFX); + + amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3)); + amdgpu_ring_write(ring, (WRITE_DATA_ENGINE_SEL(usepfp) | + WRITE_DATA_DST_SEL(0))); + amdgpu_ring_write(ring, reg); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, val); +} + /* * RLC * The RLC is a multi-purpose microengine that handles a @@ -5134,6 +5147,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_gfx = { .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, .emit_cntxcntl = gfx_v7_ring_emit_cntxcntl, + .emit_wreg = gfx_v7_0_ring_emit_wreg, }; static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = { @@ -5163,6 +5177,7 @@ static const struct amdgpu_ring_funcs gfx_v7_0_ring_funcs_compute = { .test_ib = gfx_v7_0_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, + .emit_wreg = gfx_v7_0_ring_emit_wreg, }; static void gfx_v7_0_set_ring_funcs(struct amdgpu_device *adev)