diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon.h')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index 03141755c2ea..966ba0751feb 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -1048,6 +1048,9 @@ struct radeon_device { uint32_t pcie_reg_mask; radeon_rreg_t pciep_rreg; radeon_wreg_t pciep_wreg; + /* io port */ + void __iomem *rio_mem; + resource_size_t rio_mem_size; struct radeon_clock clock; struct radeon_mc mc; struct radeon_gart gart; @@ -1130,6 +1133,26 @@ static inline void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32 } } +static inline u32 r100_io_rreg(struct radeon_device *rdev, u32 reg) +{ + if (reg < rdev->rio_mem_size) + return ioread32(rdev->rio_mem + reg); + else { + iowrite32(reg, rdev->rio_mem + RADEON_MM_INDEX); + return ioread32(rdev->rio_mem + RADEON_MM_DATA); + } +} + +static inline void r100_io_wreg(struct radeon_device *rdev, u32 reg, u32 v) +{ + if (reg < rdev->rio_mem_size) + iowrite32(v, rdev->rio_mem + reg); + else { + iowrite32(reg, rdev->rio_mem + RADEON_MM_INDEX); + iowrite32(v, rdev->rio_mem + RADEON_MM_DATA); + } +} + /* * Cast helper */ @@ -1168,6 +1191,8 @@ static inline void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32 WREG32_PLL(reg, tmp_); \ } while (0) #define DREG32_SYS(sqf, rdev, reg) seq_printf((sqf), #reg " : 0x%08X\n", r100_mm_rreg((rdev), (reg))) +#define RREG32_IO(reg) r100_io_rreg(rdev, (reg)) +#define WREG32_IO(reg, v) r100_io_wreg(rdev, (reg), (v)) /* * Indirect registers accessor |