diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/r100.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r100.c | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c index 376884f1bcd2..8ff7cac222dc 100644 --- a/drivers/gpu/drm/radeon/r100.c +++ b/drivers/gpu/drm/radeon/r100.c @@ -4135,23 +4135,36 @@ int r100_init(struct radeon_device *rdev) return 0; } -uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg) +uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg, + bool always_indirect) { - if (reg < rdev->rmmio_size) + if (reg < rdev->rmmio_size && !always_indirect) return readl(((void __iomem *)rdev->rmmio) + reg); else { + unsigned long flags; + uint32_t ret; + + spin_lock_irqsave(&rdev->mmio_idx_lock, flags); writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); - return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); + ret = readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); + spin_unlock_irqrestore(&rdev->mmio_idx_lock, flags); + + return ret; } } -void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) +void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v, + bool always_indirect) { - if (reg < rdev->rmmio_size) + if (reg < rdev->rmmio_size && !always_indirect) writel(v, ((void __iomem *)rdev->rmmio) + reg); else { + unsigned long flags; + + spin_lock_irqsave(&rdev->mmio_idx_lock, flags); writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX); writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA); + spin_unlock_irqrestore(&rdev->mmio_idx_lock, flags); } } |