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drm/amdgpu: Setting doorbell range registers earlier 

HW doorbell writing routing policy: writing to doorbell
not in SDMA/IH/MM/ACV doorbell range will be routed to CP.
So CP doorbell routing depends on doorbell range setting
of above blocks. Setting doorbell range of above blocks
earlier (soc15_common_hw_init) to make sure CP doorbell
writing be routed to CP block.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Oak Zeng 2019-01-14 16:32:53 -06:00 committed by Alex Deucher
parent 8987e2e256
commit 7c94bc828e
3 changed files with 22 additions and 5 deletions
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3
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
View File

@ -834,9 +834,6 @@ static void sdma_v4_0_gfx_resume(struct amdgpu_device *adev, unsigned int i)
OFFSET, ring->doorbell_index);
WREG32_SDMA(i, mmSDMA0_GFX_DOORBELL, doorbell);
WREG32_SDMA(i, mmSDMA0_GFX_DOORBELL_OFFSET, doorbell_offset);
adev->nbio_funcs->sdma_doorbell_range(adev, i, ring->use_doorbell,
ring->doorbell_index,
adev->doorbell_index.sdma_doorbell_range);
sdma_v4_0_ring_set_wptr(ring);

22
drivers/gpu/drm/amd/amdgpu/soc15.c
View File

@ -966,6 +966,22 @@ static int soc15_common_sw_fini(void *handle)
return 0;
}
static void soc15_doorbell_range_init(struct amdgpu_device *adev)
{
int i;
struct amdgpu_ring *ring;
for (i = 0; i < adev->sdma.num_instances; i++) {
ring = &adev->sdma.instance[i].ring;
adev->nbio_funcs->sdma_doorbell_range(adev, i,
ring->use_doorbell, ring->doorbell_index,
adev->doorbell_index.sdma_doorbell_range);
}
adev->nbio_funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
adev->irq.ih.doorbell_index);
}
static int soc15_common_hw_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@ -978,6 +994,12 @@ static int soc15_common_hw_init(void *handle)
adev->nbio_funcs->init_registers(adev);
/* enable the doorbell aperture */
soc15_enable_doorbell_aperture(adev, true);
/* HW doorbell routing policy: doorbell writing not
* in SDMA/IH/MM/ACV range will be routed to CP. So
* we need to init SDMA/IH/MM/ACV doorbell range prior
* to CP ip block init and ring test.
*/
soc15_doorbell_range_init(adev);
return 0;
}

2
drivers/gpu/drm/amd/amdgpu/vega10_ih.c
View File

@ -140,8 +140,6 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
ENABLE, 0);
}
WREG32_SOC15(OSSSYS, 0, mmIH_DOORBELL_RPTR, ih_doorbell_rtpr);
adev->nbio_funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
adev->irq.ih.doorbell_index);
tmp = RREG32_SOC15(OSSSYS, 0, mmIH_STORM_CLIENT_LIST_CNTL);
tmp = REG_SET_FIELD(tmp, IH_STORM_CLIENT_LIST_CNTL,