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From d5b0a4f04720bc2af575bb8e6abe080823ae2fef Mon Sep 17 00:00:00 2001
From: Feifei Xu <Feifei.Xu@amd.com>
Date: Fri, 23 Mar 2018 14:44:28 -0500
Subject: [PATCH 4411/5725] 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>
---
drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c | 18 +++++++++++++++++-
drivers/gpu/drm/amd/amdgpu/soc15.c | 2 ++
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
index df34dc7..365517c 100644
--- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_0.c
@@ -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);
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index 10337fb..4e065c6 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -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;
--
2.7.4
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