diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2016-07-05 08:03:47 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-21 11:55:54 +0300 |
| commit | c40785ad305b32e9b0b5fbc888f1f5d57f29bf44 (patch) | |
| tree | 29176dea27e7375311e8404d7137ed8b684fa110 /arch/powerpc/include/asm/iommu.h | |
| parent | de4cf3de594f96f5a27f0e2346dd211beb126f88 (diff) | |
| download | linux-c40785ad305b32e9b0b5fbc888f1f5d57f29bf44.tar.xz | |
powerpc/dart: Use a cachable DART
Instead of punching a hole in the linear mapping, just use normal
cachable memory, and apply the flush sequence documented in the
CPC625 (aka U3) user manual.
This allows us to remove quite a bit of code related to the early
allocation of the DART and the hole in the linear mapping. We can
also get rid of the copy of the DART for suspend/resume as the
original memory can just be saved/restored now, as long as we
properly sync the caches.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[mpe: Integrate dart_init() fix to return ENODEV when DART disabled]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/iommu.h')
| -rw-r--r-- | arch/powerpc/include/asm/iommu.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/iommu.h b/arch/powerpc/include/asm/iommu.h index 7b87bab09564..f49a72a9062d 100644 --- a/arch/powerpc/include/asm/iommu.h +++ b/arch/powerpc/include/asm/iommu.h @@ -273,7 +273,6 @@ extern void iommu_init_early_pSeries(void); extern void iommu_init_early_dart(struct pci_controller_ops *controller_ops); extern void iommu_init_early_pasemi(void); -extern void alloc_dart_table(void); #if defined(CONFIG_PPC64) && defined(CONFIG_PM) static inline void iommu_save(void) { |