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drm/amdgpu: Add nbio support for vega20 (v2) 

Some register offset in nbio v7.4 are different with v7.0.

v2: Use nbio7.0 for now.

TODO: add a new nbio 7.4 module (Alex)

Signed-off-by: Feifei Xu <Feifei.Xu@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Feifei Xu 2018-03-23 14:44:28 -05:00 committed by Alex Deucher
parent 7c7af6c10d
commit a95d89e2d8
2 changed files with 19 additions and 1 deletions
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18
drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
View File

@ -34,10 +34,19 @@
#define smnCPM_CONTROL 0x11180460
#define smnPCIE_CNTL2 0x11180070
/* vega20 */
#define mmRCC_DEV0_EPF0_STRAP0_VG20 0x0011
#define mmRCC_DEV0_EPF0_STRAP0_VG20_BASE_IDX 2
static u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev)
{
u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
if (adev->asic_type == CHIP_VEGA20)
tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0_VG20);
else
tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
@ -75,10 +84,14 @@ static void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instan
SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE);
u32 doorbell_range = RREG32(reg);
u32 range = 2;
if (adev->asic_type == CHIP_VEGA20)
range = 8;
if (use_doorbell) {
doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);
doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 2);
doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, range);
} else
doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);
@ -133,6 +146,9 @@ static void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *ade
{
uint32_t def, data;
if (adev->asic_type == CHIP_VEGA20)
return;
/* NBIF_MGCG_CTRL_LCLK */
def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);

2
drivers/gpu/drm/amd/amdgpu/soc15.c
View File

@ -496,6 +496,8 @@ int soc15_set_ip_blocks(struct amdgpu_device *adev)
if (adev->flags & AMD_IS_APU)
adev->nbio_funcs = &nbio_v7_0_funcs;
else if (adev->asic_type == CHIP_VEGA20)
adev->nbio_funcs = &nbio_v7_0_funcs;
else
adev->nbio_funcs = &nbio_v6_1_funcs;