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| author | Michel Dänzer <michel.daenzer@amd.com> | 2015-01-21 17:36:35 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2015-01-22 11:46:17 -0500 |
| commit | cb65890610dca287718a63bd8a5d9ce3dc80c3d7 (patch) | |
| tree | 17221a105fad2276d0b0c05ead0257fe63776be2 /drivers/gpu/drm/radeon/rs600.c | |
| parent | 67cf2d391292f8bf0598236e7b4ec343eae6234f (diff) | |
| download | lwn-cb65890610dca287718a63bd8a5d9ce3dc80c3d7.tar.gz lwn-cb65890610dca287718a63bd8a5d9ce3dc80c3d7.zip | |
drm/radeon: Split off gart_get_page_entry ASIC hook from set_page_entry
get_page_entry calculates the GART page table entry, which is just written
to the GART page table by set_page_entry.
This is a prerequisite for the following fix.
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/rs600.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/rs600.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c index 9acb1c3c005b..74bce91aecc1 100644 --- a/drivers/gpu/drm/radeon/rs600.c +++ b/drivers/gpu/drm/radeon/rs600.c @@ -625,11 +625,8 @@ static void rs600_gart_fini(struct radeon_device *rdev) radeon_gart_table_vram_free(rdev); } -void rs600_gart_set_page(struct radeon_device *rdev, unsigned i, - uint64_t addr, uint32_t flags) +uint64_t rs600_gart_get_page_entry(uint64_t addr, uint32_t flags) { - void __iomem *ptr = (void *)rdev->gart.ptr; - addr = addr & 0xFFFFFFFFFFFFF000ULL; addr |= R600_PTE_SYSTEM; if (flags & RADEON_GART_PAGE_VALID) @@ -640,7 +637,14 @@ void rs600_gart_set_page(struct radeon_device *rdev, unsigned i, addr |= R600_PTE_WRITEABLE; if (flags & RADEON_GART_PAGE_SNOOP) addr |= R600_PTE_SNOOPED; - writeq(addr, ptr + (i * 8)); + return addr; +} + +void rs600_gart_set_page(struct radeon_device *rdev, unsigned i, + uint64_t entry) +{ + void __iomem *ptr = (void *)rdev->gart.ptr; + writeq(entry, ptr + (i * 8)); } int rs600_irq_set(struct radeon_device *rdev) |