diff options
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/nv.c | 32 |
2 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h index edaac242ff85..483834a62436 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_nbio.h @@ -53,6 +53,8 @@ struct amdgpu_nbio_funcs { u32 (*get_hdp_flush_done_offset)(struct amdgpu_device *adev); u32 (*get_pcie_index_offset)(struct amdgpu_device *adev); u32 (*get_pcie_data_offset)(struct amdgpu_device *adev); + u32 (*get_pcie_port_index_offset)(struct amdgpu_device *adev); + u32 (*get_pcie_port_data_offset)(struct amdgpu_device *adev); u32 (*get_rev_id)(struct amdgpu_device *adev); void (*mc_access_enable)(struct amdgpu_device *adev, bool enable); void (*hdp_flush)(struct amdgpu_device *adev, struct amdgpu_ring *ring); diff --git a/drivers/gpu/drm/amd/amdgpu/nv.c b/drivers/gpu/drm/amd/amdgpu/nv.c index 1666d43197cb..46d6fd0a9d4a 100644 --- a/drivers/gpu/drm/amd/amdgpu/nv.c +++ b/drivers/gpu/drm/amd/amdgpu/nv.c @@ -95,6 +95,21 @@ static u64 nv_pcie_rreg64(struct amdgpu_device *adev, u32 reg) return amdgpu_device_indirect_rreg64(adev, address, data, reg); } +static u32 nv_pcie_port_rreg(struct amdgpu_device *adev, u32 reg) +{ + unsigned long flags, address, data; + u32 r; + address = adev->nbio.funcs->get_pcie_port_index_offset(adev); + data = adev->nbio.funcs->get_pcie_port_data_offset(adev); + + spin_lock_irqsave(&adev->pcie_idx_lock, flags); + WREG32(address, reg * 4); + (void)RREG32(address); + r = RREG32(data); + spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); + return r; +} + static void nv_pcie_wreg64(struct amdgpu_device *adev, u32 reg, u64 v) { unsigned long address, data; @@ -105,6 +120,21 @@ static void nv_pcie_wreg64(struct amdgpu_device *adev, u32 reg, u64 v) amdgpu_device_indirect_wreg64(adev, address, data, reg, v); } +static void nv_pcie_port_wreg(struct amdgpu_device *adev, u32 reg, u32 v) +{ + unsigned long flags, address, data; + + address = adev->nbio.funcs->get_pcie_port_index_offset(adev); + data = adev->nbio.funcs->get_pcie_port_data_offset(adev); + + spin_lock_irqsave(&adev->pcie_idx_lock, flags); + WREG32(address, reg * 4); + (void)RREG32(address); + WREG32(data, v); + (void)RREG32(data); + spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); +} + static u32 nv_didt_rreg(struct amdgpu_device *adev, u32 reg) { unsigned long flags, address, data; @@ -711,6 +741,8 @@ static int nv_common_early_init(void *handle) adev->pcie_wreg = &nv_pcie_wreg; adev->pcie_rreg64 = &nv_pcie_rreg64; adev->pcie_wreg64 = &nv_pcie_wreg64; + adev->pciep_rreg = &nv_pcie_port_rreg; + adev->pciep_wreg = &nv_pcie_port_wreg; /* TODO: will add them during VCN v2 implementation */ adev->uvd_ctx_rreg = NULL; |