[POWERPC] Merge 32 and 64 bits asm-powerpc/io.h
powerpc: Merge 32 and 64 bits asm-powerpc/io.h
The rework on io.h done for the new hookable accessors made it easier,
so I just finished the work and merged 32 and 64 bits io.h for arch/powerpc.
arch/ppc still uses the old version in asm-ppc, there is just too much gunk
in there that I really can't be bothered trying to cleanup.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 600954d..f9ce5d7 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -72,7 +72,7 @@
obj64-$(CONFIG_AUDIT) += compat_audit.o
ifneq ($(CONFIG_PPC_INDIRECT_IO),y)
-pci64-$(CONFIG_PPC64) += iomap.o
+obj-y += iomap.o
endif
ifeq ($(CONFIG_PPC_ISERIES),y)
diff --git a/arch/powerpc/kernel/io.c b/arch/powerpc/kernel/io.c
index c1aa0752..34ae114 100644
--- a/arch/powerpc/kernel/io.c
+++ b/arch/powerpc/kernel/io.c
@@ -117,3 +117,90 @@
asm volatile("sync");
}
EXPORT_SYMBOL(_outsl_ns);
+
+#define IO_CHECK_ALIGN(v,a) ((((unsigned long)(v)) & ((a) - 1)) == 0)
+
+void _memset_io(volatile void __iomem *addr, int c, unsigned long n)
+{
+ void *p = (void __force *)addr;
+ u32 lc = c;
+ lc |= lc << 8;
+ lc |= lc << 16;
+
+ __asm__ __volatile__ ("sync" : : : "memory");
+ while(n && !IO_CHECK_ALIGN(p, 4)) {
+ *((volatile u8 *)p) = c;
+ p++;
+ n--;
+ }
+ while(n >= 4) {
+ *((volatile u32 *)p) = lc;
+ p += 4;
+ n -= 4;
+ }
+ while(n) {
+ *((volatile u8 *)p) = c;
+ p++;
+ n--;
+ }
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+EXPORT_SYMBOL(_memset_io);
+
+void _memcpy_fromio(void *dest, const volatile void __iomem *src,
+ unsigned long n)
+{
+ void *vsrc = (void __force *) src;
+
+ __asm__ __volatile__ ("sync" : : : "memory");
+ while(n && (!IO_CHECK_ALIGN(vsrc, 4) || !IO_CHECK_ALIGN(dest, 4))) {
+ *((u8 *)dest) = *((volatile u8 *)vsrc);
+ __asm__ __volatile__ ("eieio" : : : "memory");
+ vsrc++;
+ dest++;
+ n--;
+ }
+ while(n > 4) {
+ *((u32 *)dest) = *((volatile u32 *)vsrc);
+ __asm__ __volatile__ ("eieio" : : : "memory");
+ vsrc += 4;
+ dest += 4;
+ n -= 4;
+ }
+ while(n) {
+ *((u8 *)dest) = *((volatile u8 *)vsrc);
+ __asm__ __volatile__ ("eieio" : : : "memory");
+ vsrc++;
+ dest++;
+ n--;
+ }
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+EXPORT_SYMBOL(_memcpy_fromio);
+
+void _memcpy_toio(volatile void __iomem *dest, const void *src, unsigned long n)
+{
+ void *vdest = (void __force *) dest;
+
+ __asm__ __volatile__ ("sync" : : : "memory");
+ while(n && (!IO_CHECK_ALIGN(vdest, 4) || !IO_CHECK_ALIGN(src, 4))) {
+ *((volatile u8 *)vdest) = *((u8 *)src);
+ src++;
+ vdest++;
+ n--;
+ }
+ while(n > 4) {
+ *((volatile u32 *)vdest) = *((volatile u32 *)src);
+ src += 4;
+ vdest += 4;
+ n-=4;
+ }
+ while(n) {
+ *((volatile u8 *)vdest) = *((u8 *)src);
+ src++;
+ vdest++;
+ n--;
+ }
+ __asm__ __volatile__ ("sync" : : : "memory");
+}
+EXPORT_SYMBOL(_memcpy_toio);
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index a13a93d..c681133 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -106,7 +106,7 @@
void __iomem *ioport_map(unsigned long port, unsigned int len)
{
- return (void __iomem *) (port+pci_io_base);
+ return (void __iomem *) (port + _IO_BASE);
}
void ioport_unmap(void __iomem *addr)
diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c
index 0ad101a..b08238f 100644
--- a/arch/powerpc/kernel/pci_32.c
+++ b/arch/powerpc/kernel/pci_32.c
@@ -1561,7 +1561,7 @@
*offset += hose->pci_mem_offset;
res_bit = IORESOURCE_MEM;
} else {
- io_offset = hose->io_base_virt - ___IO_BASE;
+ io_offset = hose->io_base_virt - (void __iomem *)_IO_BASE;
*offset += io_offset;
res_bit = IORESOURCE_IO;
}
@@ -1816,7 +1816,8 @@
return;
if (rsrc->flags & IORESOURCE_IO)
- offset = ___IO_BASE - hose->io_base_virt + hose->io_base_phys;
+ offset = (void __iomem *)_IO_BASE - hose->io_base_virt
+ + hose->io_base_phys;
*start = rsrc->start + offset;
*end = rsrc->end + offset;
@@ -1835,35 +1836,6 @@
res->child = NULL;
}
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
- unsigned long start = pci_resource_start(dev, bar);
- unsigned long len = pci_resource_len(dev, bar);
- unsigned long flags = pci_resource_flags(dev, bar);
-
- if (!len)
- return NULL;
- if (max && len > max)
- len = max;
- if (flags & IORESOURCE_IO)
- return ioport_map(start, len);
- if (flags & IORESOURCE_MEM)
- /* Not checking IORESOURCE_CACHEABLE because PPC does
- * not currently distinguish between ioremap and
- * ioremap_nocache.
- */
- return ioremap(start, len);
- /* What? */
- return NULL;
-}
-
-void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
-{
- /* Nothing to do */
-}
-EXPORT_SYMBOL(pci_iomap);
-EXPORT_SYMBOL(pci_iounmap);
-
unsigned long pci_address_to_pio(phys_addr_t address)
{
struct pci_controller* hose = hose_head;
diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 03cacc2..ace9f4c 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -38,6 +38,7 @@
#include <asm/rtas.h>
#include <asm/mpic.h>
#include <asm/ppc-pci.h>
+#include <asm/eeh.h>
/* RTAS tokens */
static int read_pci_config;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index c66b477..0d4e203 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -53,10 +53,6 @@
#endif
#include <asm/kexec.h>
-#ifdef CONFIG_PPC64 /* XXX */
-#define _IO_BASE pci_io_base
-#endif
-
#ifdef CONFIG_DEBUGGER
int (*__debugger)(struct pt_regs *regs);
int (*__debugger_ipi)(struct pt_regs *regs);
@@ -241,7 +237,7 @@
*/
static inline int check_io_access(struct pt_regs *regs)
{
-#if defined(CONFIG_PPC_PMAC) && defined(CONFIG_PPC32)
+#ifdef CONFIG_PPC32
unsigned long msr = regs->msr;
const struct exception_table_entry *entry;
unsigned int *nip = (unsigned int *)regs->nip;
@@ -274,7 +270,7 @@
return 1;
}
}
-#endif /* CONFIG_PPC_PMAC && CONFIG_PPC32 */
+#endif /* CONFIG_PPC32 */
return 0;
}
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 7750c44..1891dbe 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -149,6 +149,13 @@
EXPORT_SYMBOL(ioremap);
void __iomem *
+ioremap_flags(phys_addr_t addr, unsigned long size, unsigned long flags)
+{
+ return __ioremap(addr, size, flags);
+}
+EXPORT_SYMBOL(ioremap_flags);
+
+void __iomem *
__ioremap(phys_addr_t addr, unsigned long size, unsigned long flags)
{
unsigned long v, i;
@@ -247,20 +254,7 @@
}
EXPORT_SYMBOL(iounmap);
-void __iomem *ioport_map(unsigned long port, unsigned int len)
-{
- return (void __iomem *) (port + _IO_BASE);
-}
-
-void ioport_unmap(void __iomem *addr)
-{
- /* Nothing to do */
-}
-EXPORT_SYMBOL(ioport_map);
-EXPORT_SYMBOL(ioport_unmap);
-
-int
-map_page(unsigned long va, phys_addr_t pa, int flags)
+int map_page(unsigned long va, phys_addr_t pa, int flags)
{
pmd_t *pd;
pte_t *pg;
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index e9b2184..16e4ee1 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -113,7 +113,7 @@
}
-static void __iomem * __ioremap_com(unsigned long addr, unsigned long pa,
+static void __iomem * __ioremap_com(phys_addr_t addr, unsigned long pa,
unsigned long ea, unsigned long size,
unsigned long flags)
{
@@ -129,7 +129,7 @@
return (void __iomem *) (ea + (addr & ~PAGE_MASK));
}
-void __iomem * __ioremap(unsigned long addr, unsigned long size,
+void __iomem * __ioremap(phys_addr_t addr, unsigned long size,
unsigned long flags)
{
unsigned long pa, ea;
@@ -169,7 +169,7 @@
}
-void __iomem * ioremap(unsigned long addr, unsigned long size)
+void __iomem * ioremap(phys_addr_t addr, unsigned long size)
{
unsigned long flags = _PAGE_NO_CACHE | _PAGE_GUARDED;
@@ -178,7 +178,7 @@
return __ioremap(addr, size, flags);
}
-void __iomem * ioremap_flags(unsigned long addr, unsigned long size,
+void __iomem * ioremap_flags(phys_addr_t addr, unsigned long size,
unsigned long flags)
{
if (ppc_md.ioremap)
@@ -189,7 +189,7 @@
#define IS_PAGE_ALIGNED(_val) ((_val) == ((_val) & PAGE_MASK))
-int __ioremap_explicit(unsigned long pa, unsigned long ea,
+int __ioremap_explicit(phys_addr_t pa, unsigned long ea,
unsigned long size, unsigned long flags)
{
struct vm_struct *area;
@@ -244,7 +244,7 @@
*
* XXX what about calls before mem_init_done (ie python_countermeasures())
*/
-void __iounmap(void __iomem *token)
+void __iounmap(volatile void __iomem *token)
{
void *addr;
@@ -256,7 +256,7 @@
im_free(addr);
}
-void iounmap(void __iomem *token)
+void iounmap(volatile void __iomem *token)
{
if (ppc_md.iounmap)
ppc_md.iounmap(token);
@@ -282,7 +282,7 @@
return 0;
}
-int __iounmap_explicit(void __iomem *start, unsigned long size)
+int __iounmap_explicit(volatile void __iomem *start, unsigned long size)
{
struct vm_struct *area;
unsigned long addr;
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index e6807d6..e1f51d4 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -588,7 +588,6 @@
ISA_DMA_THRESHOLD = ~0L;
DMA_MODE_READ = 0x44;
DMA_MODE_WRITE = 0x48;
- isa_io_base = CHRP_ISA_IO_BASE; /* default value */
return 1;
}
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 2f16d93..0f39bdb 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -617,13 +617,13 @@
void __init iSeries_init_IRQ(void) { }
#endif
-static void __iomem *iseries_ioremap(unsigned long address, unsigned long size,
+static void __iomem *iseries_ioremap(phys_addr_t address, unsigned long size,
unsigned long flags)
{
return (void __iomem *)address;
}
-static void iseries_iounmap(void __iomem *token)
+static void iseries_iounmap(volatile void __iomem *token)
{
}
diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index 4ec6a5a..d949e9df 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -677,8 +677,6 @@
#ifdef CONFIG_PPC32
/* isa_io_base gets set in pmac_pci_init */
- isa_mem_base = PMAC_ISA_MEM_BASE;
- pci_dram_offset = PMAC_PCI_DRAM_OFFSET;
ISA_DMA_THRESHOLD = ~0L;
DMA_MODE_READ = 1;
DMA_MODE_WRITE = 2;