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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>
This commit is contained in:
Xiangliang Yu 2017-01-12 13:57:48 +08:00 committed by Alex Deucher
parent b6091c1217
commit 880e87e380
2 changed files with 38 additions and 0 deletions
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1
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
View File

@ -34,6 +34,7 @@ struct amdgpu_virt {
uint32_t caps;
struct amdgpu_bo *csa_obj;
uint64_t csa_vmid0_addr;
uint32_t reg_val_offs;
};
#define AMDGPU_CSA_SIZE (8 * 1024)

37
drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
View File

@ -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)