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Diffstat (limited to 'arch/powerpc/sysdev/dart_iommu.c')
-rw-r--r--arch/powerpc/sysdev/dart_iommu.c19
1 files changed, 15 insertions, 4 deletions
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 4f2680f431b5..bd968a43a48b 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);
}