diff options
| author | J. Bruce Fields <bfields@redhat.com> | 2012-10-09 18:35:22 -0400 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2012-10-09 18:35:22 -0400 |
| commit | f474af7051212b4efc8267583fad9c4ebf33ccff (patch) | |
| tree | 1aa46ebc8065a341f247c2a2d9af2f624ad1d4f8 /arch/powerpc/sysdev/dart_iommu.c | |
| parent | 0d22f68f02c10d5d10ec5712917e5828b001a822 (diff) | |
| parent | e3dd9a52cb5552c46c2a4ca7ccdfb4dab5c72457 (diff) | |
nfs: disintegrate UAPI for nfs
This is to complete part of the Userspace API (UAPI) disintegration for which
the preparatory patches were pulled recently. After these patches, userspace
headers will be segregated into:
include/uapi/linux/.../foo.h
for the userspace interface stuff, and:
include/linux/.../foo.h
for the strictly kernel internal stuff.
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'arch/powerpc/sysdev/dart_iommu.c')
| -rw-r--r-- | arch/powerpc/sysdev/dart_iommu.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c index 4f2680f431b..bd968a43a48 100644 --- a/arch/powerpc/sysdev/dart_iommu.c +++ b/arch/powerpc/sysdev/dart_iommu.c @@ -43,7 +43,6 @@ #include <asm/iommu.h> #include <asm/pci-bridge.h> #include <asm/machdep.h> -#include <asm/abs_addr.h> #include <asm/cacheflush.h> #include <asm/ppc-pci.h> @@ -74,11 +73,16 @@ static int dart_is_u4; #define DBG(...) +static DEFINE_SPINLOCK(invalidate_lock); + static inline void dart_tlb_invalidate_all(void) { unsigned long l = 0; unsigned int reg, inv_bit; unsigned long limit; + unsigned long flags; + + spin_lock_irqsave(&invalidate_lock, flags); DBG("dart: flush\n"); @@ -111,12 +115,17 @@ retry: panic("DART: TLB did not flush after waiting a long " "time. Buggy U3 ?"); } + + spin_unlock_irqrestore(&invalidate_lock, flags); } static inline void dart_tlb_invalidate_one(unsigned long bus_rpn) { unsigned int reg; unsigned int l, limit; + unsigned long flags; + + spin_lock_irqsave(&invalidate_lock, flags); reg = DART_CNTL_U4_ENABLE | DART_CNTL_U4_IONE | (bus_rpn & DART_CNTL_U4_IONE_MASK); @@ -138,6 +147,8 @@ wait_more: panic("DART: TLB did not flush after waiting a long " "time. Buggy U4 ?"); } + + spin_unlock_irqrestore(&invalidate_lock, flags); } static void dart_flush(struct iommu_table *tbl) @@ -167,7 +178,7 @@ static int dart_build(struct iommu_table *tbl, long index, */ l = npages; while (l--) { - rpn = virt_to_abs(uaddr) >> DART_PAGE_SHIFT; + rpn = __pa(uaddr) >> DART_PAGE_SHIFT; *(dp++) = DARTMAP_VALID | (rpn & DARTMAP_RPNMASK); @@ -244,7 +255,7 @@ static int __init dart_init(struct device_node *dart_node) panic("DART: Cannot map registers!"); /* Map in DART table */ - dart_vbase = ioremap(virt_to_abs(dart_tablebase), dart_tablesize); + dart_vbase = ioremap(__pa(dart_tablebase), dart_tablesize); /* Fill initial table */ for (i = 0; i < dart_tablesize/4; i++) @@ -463,7 +474,7 @@ void __init alloc_dart_table(void) * will blow up an entire large page anyway in the kernel mapping */ dart_tablebase = (unsigned long) - abs_to_virt(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); + __va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L)); printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase); } |