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drm/radeon/kms: cut down indirects in register accesses.

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We really don't want to be doing all these indirects, updating
the GPU gart table is something we do often so the less overhead the
better.

Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2009-08-12 18:43:14 +10:00
parent 7ed220d738
commit de1b28989e
5 changed files with 47 additions and 79 deletions
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20
drivers/gpu/drm/radeon/r100.c
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@@ -1622,26 +1622,6 @@ void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
r100_pll_errata_after_data(rdev);
}
uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg)
{
if (reg < 0x10000)
return readl(((void __iomem *)rdev->rmmio) + reg);
else {
writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
}
}
void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
{
if (reg < 0x10000)
writel(v, ((void __iomem *)rdev->rmmio) + reg);
else {
writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
}
}
int r100_init(struct radeon_device *rdev)
{
return 0;