diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 12a7f9a7e63e..7ee49033d9da 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -626,6 +626,9 @@ typedef void (*amdgpu_wreg_ext_t)(struct amdgpu_device*, uint64_t, uint32_t); typedef uint64_t (*amdgpu_rreg64_t)(struct amdgpu_device*, uint32_t); typedef void (*amdgpu_wreg64_t)(struct amdgpu_device*, uint32_t, uint64_t); +typedef uint64_t (*amdgpu_rreg64_ext_t)(struct amdgpu_device*, uint64_t); +typedef void (*amdgpu_wreg64_ext_t)(struct amdgpu_device*, uint64_t, uint64_t); + typedef uint32_t (*amdgpu_block_rreg_t)(struct amdgpu_device*, uint32_t, uint32_t); typedef void (*amdgpu_block_wreg_t)(struct amdgpu_device*, uint32_t, uint32_t, uint32_t); @@ -830,6 +833,8 @@ struct amdgpu_device { amdgpu_wreg_ext_t pcie_wreg_ext; amdgpu_rreg64_t pcie_rreg64; amdgpu_wreg64_t pcie_wreg64; + amdgpu_rreg64_ext_t pcie_rreg64_ext; + amdgpu_wreg64_ext_t pcie_wreg64_ext; /* protects concurrent UVD register access */ spinlock_t uvd_ctx_idx_lock; amdgpu_rreg_t uvd_ctx_rreg; @@ -1145,10 +1150,14 @@ u32 amdgpu_device_indirect_rreg(struct amdgpu_device *adev, u32 reg_addr); u64 amdgpu_device_indirect_rreg64(struct amdgpu_device *adev, u32 reg_addr); +u64 amdgpu_device_indirect_rreg64_ext(struct amdgpu_device *adev, + u64 reg_addr); void amdgpu_device_indirect_wreg(struct amdgpu_device *adev, u32 reg_addr, u32 reg_data); void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev, u32 reg_addr, u64 reg_data); +void amdgpu_device_indirect_wreg64_ext(struct amdgpu_device *adev, + u64 reg_addr, u64 reg_data); u32 amdgpu_device_get_rev_id(struct amdgpu_device *adev); bool amdgpu_device_asic_has_dc_support(enum amd_asic_type asic_type); bool amdgpu_device_has_dc_support(struct amdgpu_device *adev); @@ -1191,6 +1200,8 @@ int emu_soc_asic_init(struct amdgpu_device *adev); #define WREG32_PCIE_EXT(reg, v) adev->pcie_wreg_ext(adev, (reg), (v)) #define RREG64_PCIE(reg) adev->pcie_rreg64(adev, (reg)) #define WREG64_PCIE(reg, v) adev->pcie_wreg64(adev, (reg), (v)) +#define RREG64_PCIE_EXT(reg) adev->pcie_rreg64_ext(adev, (reg)) +#define WREG64_PCIE_EXT(reg, v) adev->pcie_wreg64_ext(adev, (reg), (v)) #define RREG32_SMC(reg) adev->smc_rreg(adev, (reg)) #define WREG32_SMC(reg, v) adev->smc_wreg(adev, (reg), (v)) #define RREG32_UVD_CTX(reg) adev->uvd_ctx_rreg(adev, (reg)) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index d45f5ea57583..47cd449f30a7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -639,6 +639,56 @@ u64 amdgpu_device_indirect_rreg64(struct amdgpu_device *adev, return r; } +u64 amdgpu_device_indirect_rreg64_ext(struct amdgpu_device *adev, + u64 reg_addr) +{ + unsigned long flags, pcie_index, pcie_data; + unsigned long pcie_index_hi = 0; + void __iomem *pcie_index_offset; + void __iomem *pcie_index_hi_offset; + void __iomem *pcie_data_offset; + u64 r; + + pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev); + pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev); + if ((reg_addr >> 32) && (adev->nbio.funcs->get_pcie_index_hi_offset)) + pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev); + + spin_lock_irqsave(&adev->pcie_idx_lock, flags); + pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4; + pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4; + if (pcie_index_hi != 0) + pcie_index_hi_offset = (void __iomem *)adev->rmmio + + pcie_index_hi * 4; + + /* read low 32 bits */ + writel(reg_addr, pcie_index_offset); + readl(pcie_index_offset); + if (pcie_index_hi != 0) { + writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + r = readl(pcie_data_offset); + /* read high 32 bits */ + writel(reg_addr + 4, pcie_index_offset); + readl(pcie_index_offset); + if (pcie_index_hi != 0) { + writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + r |= ((u64)readl(pcie_data_offset) << 32); + + /* clear the high bits */ + if (pcie_index_hi != 0) { + writel(0, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + + spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); + + return r; +} + /** * amdgpu_device_indirect_wreg - write an indirect register address * @@ -743,6 +793,55 @@ void amdgpu_device_indirect_wreg64(struct amdgpu_device *adev, spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); } +void amdgpu_device_indirect_wreg64_ext(struct amdgpu_device *adev, + u64 reg_addr, u64 reg_data) +{ + unsigned long flags, pcie_index, pcie_data; + unsigned long pcie_index_hi = 0; + void __iomem *pcie_index_offset; + void __iomem *pcie_index_hi_offset; + void __iomem *pcie_data_offset; + + pcie_index = adev->nbio.funcs->get_pcie_index_offset(adev); + pcie_data = adev->nbio.funcs->get_pcie_data_offset(adev); + if ((reg_addr >> 32) && (adev->nbio.funcs->get_pcie_index_hi_offset)) + pcie_index_hi = adev->nbio.funcs->get_pcie_index_hi_offset(adev); + + spin_lock_irqsave(&adev->pcie_idx_lock, flags); + pcie_index_offset = (void __iomem *)adev->rmmio + pcie_index * 4; + pcie_data_offset = (void __iomem *)adev->rmmio + pcie_data * 4; + if (pcie_index_hi != 0) + pcie_index_hi_offset = (void __iomem *)adev->rmmio + + pcie_index_hi * 4; + + /* write low 32 bits */ + writel(reg_addr, pcie_index_offset); + readl(pcie_index_offset); + if (pcie_index_hi != 0) { + writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + writel((u32)(reg_data & 0xffffffffULL), pcie_data_offset); + readl(pcie_data_offset); + /* write high 32 bits */ + writel(reg_addr + 4, pcie_index_offset); + readl(pcie_index_offset); + if (pcie_index_hi != 0) { + writel((reg_addr >> 32) & 0xff, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + writel((u32)(reg_data >> 32), pcie_data_offset); + readl(pcie_data_offset); + + /* clear the high bits */ + if (pcie_index_hi != 0) { + writel(0, pcie_index_hi_offset); + readl(pcie_index_hi_offset); + } + + spin_unlock_irqrestore(&adev->pcie_idx_lock, flags); +} + /** * amdgpu_device_get_rev_id - query device rev_id * @@ -820,6 +919,13 @@ static uint64_t amdgpu_invalid_rreg64(struct amdgpu_device *adev, uint32_t reg) return 0; } +static uint64_t amdgpu_invalid_rreg64_ext(struct amdgpu_device *adev, uint64_t reg) +{ + DRM_ERROR("Invalid callback to read register 0x%llX\n", reg); + BUG(); + return 0; +} + /** * amdgpu_invalid_wreg64 - dummy reg write function * @@ -837,6 +943,13 @@ static void amdgpu_invalid_wreg64(struct amdgpu_device *adev, uint32_t reg, uint BUG(); } +static void amdgpu_invalid_wreg64_ext(struct amdgpu_device *adev, uint64_t reg, uint64_t v) +{ + DRM_ERROR("Invalid callback to write 64 bit register 0x%llX with 0x%08llX\n", + reg, v); + BUG(); +} + /** * amdgpu_block_invalid_rreg - dummy reg read function * @@ -3569,6 +3682,8 @@ int amdgpu_device_init(struct amdgpu_device *adev, adev->pciep_wreg = &amdgpu_invalid_wreg; adev->pcie_rreg64 = &amdgpu_invalid_rreg64; adev->pcie_wreg64 = &amdgpu_invalid_wreg64; + adev->pcie_rreg64_ext = &amdgpu_invalid_rreg64_ext; + adev->pcie_wreg64_ext = &amdgpu_invalid_wreg64_ext; adev->uvd_ctx_rreg = &amdgpu_invalid_rreg; adev->uvd_ctx_wreg = &amdgpu_invalid_wreg; adev->didt_rreg = &amdgpu_invalid_rreg; diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c index f5be40d7ba36..3703afd04596 100644 --- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -921,6 +921,8 @@ static int soc15_common_early_init(void *handle) adev->pcie_wreg_ext = &amdgpu_device_indirect_wreg_ext; adev->pcie_rreg64 = &amdgpu_device_indirect_rreg64; adev->pcie_wreg64 = &amdgpu_device_indirect_wreg64; + adev->pcie_rreg64_ext = &amdgpu_device_indirect_rreg64_ext; + adev->pcie_wreg64_ext = &amdgpu_device_indirect_wreg64_ext; adev->uvd_ctx_rreg = &soc15_uvd_ctx_rreg; adev->uvd_ctx_wreg = &soc15_uvd_ctx_wreg; adev->didt_rreg = &soc15_didt_rreg;