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| author | Xiangliang Yu | 2017-01-12 06:57:48 +0100 |
|---|---|---|
| committer | Alex Deucher | 2017-01-27 17:13:21 +0100 |
| commit | 880e87e380985480cc5bee5f389f912554064930 (patch) | |
| tree | d0d3bee08cf004f0a78b741dc888f92cc3ba1f7c /drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | |
| parent | drm/amdgpu/ring: add two interfaces to support r/w registers with kiq (diff) | |
| download | kernel-qcow2-linux-880e87e380985480cc5bee5f389f912554064930.tar.gz kernel-qcow2-linux-880e87e380985480cc5bee5f389f912554064930.tar.xz kernel-qcow2-linux-880e87e380985480cc5bee5f389f912554064930.zip | |
drm/amdgpu/gfx8: implement emit_rreg/wreg function
Implement emit_rreg/wreg function for kiq ring.
Signed-off-by: Xiangliang Yu <Xiangliang.Yu@amd.com>
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index 0907173d9681..aa053f628786 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -1373,6 +1373,12 @@ static int gfx_v8_0_kiq_init_ring(struct amdgpu_device *adev, { int r = 0; + if (amdgpu_sriov_vf(adev)) { + r = amdgpu_wb_get(adev, &adev->virt.reg_val_offs); + if (r) + return r; + } + ring->adev = NULL; ring->ring_obj = NULL; ring->use_doorbell = true; @@ -1399,6 +1405,9 @@ static int gfx_v8_0_kiq_init_ring(struct amdgpu_device *adev, static void gfx_v8_0_kiq_free_ring(struct amdgpu_ring *ring, struct amdgpu_irq_src *irq) { + if (amdgpu_sriov_vf(ring->adev)) + amdgpu_wb_free(ring->adev, ring->adev->virt.reg_val_offs); + amdgpu_ring_fini(ring); irq->data = NULL; } @@ -6720,6 +6729,32 @@ static void gfx_v8_ring_emit_cntxcntl(struct amdgpu_ring *ring, uint32_t flags) amdgpu_ring_write(ring, 0); } +static void gfx_v8_0_ring_emit_rreg(struct amdgpu_ring *ring, uint32_t reg) +{ + struct amdgpu_device *adev = ring->adev; + + amdgpu_ring_write(ring, PACKET3(PACKET3_COPY_DATA, 4)); + amdgpu_ring_write(ring, 0 | /* src: register*/ + (5 << 8) | /* dst: memory */ + (1 << 20)); /* write confirm */ + amdgpu_ring_write(ring, reg); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, lower_32_bits(adev->wb.gpu_addr + + adev->virt.reg_val_offs * 4)); + amdgpu_ring_write(ring, upper_32_bits(adev->wb.gpu_addr + + adev->virt.reg_val_offs * 4)); +} + +static void gfx_v8_0_ring_emit_wreg(struct amdgpu_ring *ring, uint32_t reg, + uint32_t val) +{ + amdgpu_ring_write(ring, PACKET3(PACKET3_WRITE_DATA, 3)); + amdgpu_ring_write(ring, (1 << 16)); /* no inc addr */ + amdgpu_ring_write(ring, reg); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, val); +} + static void gfx_v8_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev, enum amdgpu_interrupt_state state) { @@ -7035,6 +7070,8 @@ static const struct amdgpu_ring_funcs gfx_v8_0_ring_funcs_kiq = { .test_ib = gfx_v8_0_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, .pad_ib = amdgpu_ring_generic_pad_ib, + .emit_rreg = gfx_v8_0_ring_emit_rreg, + .emit_wreg = gfx_v8_0_ring_emit_wreg, }; static void gfx_v8_0_set_ring_funcs(struct amdgpu_device *adev) |