Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt
index 4b1c93a..dc60455 100644
--- a/Documentation/arm/memory.txt
+++ b/Documentation/arm/memory.txt
@@ -1,7 +1,7 @@
Kernel Memory Layout on ARM Linux
Russell King <rmk@arm.linux.org.uk>
- May 21, 2004 (2.6.6)
+ November 17, 2005 (2.6.15)
This document describes the virtual memory layout which the Linux
kernel uses for ARM processors. It indicates which regions are
@@ -37,6 +37,8 @@
mapping region.
VMALLOC_END feffffff Free for platform use, recommended.
+ VMALLOC_END must be aligned to a 2MB
+ boundary.
VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space.
Memory returned by vmalloc/ioremap will
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 7a3261f..9997098 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -120,7 +120,6 @@
EXPORT_SYMBOL(__get_user_1);
EXPORT_SYMBOL(__get_user_2);
EXPORT_SYMBOL(__get_user_4);
-EXPORT_SYMBOL(__get_user_8);
EXPORT_SYMBOL(__put_user_1);
EXPORT_SYMBOL(__put_user_2);
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index 066597f..f7f18307 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -48,8 +48,7 @@
mov r0, sp @ 'regs'
mov r2, why @ 'syscall'
bl do_notify_resume
- disable_irq @ disable interrupts
- b no_work_pending
+ b ret_slow_syscall @ Check work again
work_resched:
bl schedule
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index a917e3d..765922b 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -595,23 +595,22 @@
*/
ret |= !valid_user_regs(regs);
- /*
- * Block the signal if we were unsuccessful.
- */
if (ret != 0) {
- spin_lock_irq(&tsk->sighand->siglock);
- sigorsets(&tsk->blocked, &tsk->blocked,
- &ka->sa.sa_mask);
- if (!(ka->sa.sa_flags & SA_NODEFER))
- sigaddset(&tsk->blocked, sig);
- recalc_sigpending();
- spin_unlock_irq(&tsk->sighand->siglock);
+ force_sigsegv(sig, tsk);
+ return;
}
- if (ret == 0)
- return;
+ /*
+ * Block the signal if we were successful.
+ */
+ spin_lock_irq(&tsk->sighand->siglock);
+ sigorsets(&tsk->blocked, &tsk->blocked,
+ &ka->sa.sa_mask);
+ if (!(ka->sa.sa_flags & SA_NODEFER))
+ sigaddset(&tsk->blocked, sig);
+ recalc_sigpending();
+ spin_unlock_irq(&tsk->sighand->siglock);
- force_sigsegv(sig, tsk);
}
/*
diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S
index 80c8e4c..9a47770 100644
--- a/arch/arm/kernel/vmlinux.lds.S
+++ b/arch/arm/kernel/vmlinux.lds.S
@@ -172,6 +172,10 @@
.comment 0 : { *(.comment) }
}
-/* those must never be empty */
+/*
+ * These must never be empty
+ * If you have to comment these two assert statements out, your
+ * binutils is too old (for other reasons as well)
+ */
ASSERT((__proc_info_end - __proc_info_begin), "missing CPU support")
ASSERT((__arch_info_end - __arch_info_begin), "no machine record defined")
diff --git a/arch/arm/lib/getuser.S b/arch/arm/lib/getuser.S
index d204018..c03ea8e 100644
--- a/arch/arm/lib/getuser.S
+++ b/arch/arm/lib/getuser.S
@@ -54,15 +54,6 @@
mov r0, #0
mov pc, lr
- .global __get_user_8
-__get_user_8:
-5: ldrt r2, [r0], #4
-6: ldrt r3, [r0]
- mov r0, #0
- mov pc, lr
-
-__get_user_bad_8:
- mov r3, #0
__get_user_bad:
mov r2, #0
mov r0, #-EFAULT
@@ -73,6 +64,4 @@
.long 2b, __get_user_bad
.long 3b, __get_user_bad
.long 4b, __get_user_bad
- .long 5b, __get_user_bad_8
- .long 6b, __get_user_bad_8
.previous
diff --git a/arch/arm/mm/Makefile b/arch/arm/mm/Makefile
index 59f47d4..ffe73ba 100644
--- a/arch/arm/mm/Makefile
+++ b/arch/arm/mm/Makefile
@@ -51,4 +51,4 @@
obj-$(CONFIG_CPU_SA110) += proc-sa110.o
obj-$(CONFIG_CPU_SA1100) += proc-sa1100.o
obj-$(CONFIG_CPU_XSCALE) += proc-xscale.o
-obj-$(CONFIG_CPU_V6) += proc-v6.o blockops.o
+obj-$(CONFIG_CPU_V6) += proc-v6.o
diff --git a/arch/arm/mm/blockops.c b/arch/arm/mm/blockops.c
deleted file mode 100644
index 4f5ee2d..0000000
--- a/arch/arm/mm/blockops.c
+++ /dev/null
@@ -1,185 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/mm.h>
-
-#include <asm/memory.h>
-#include <asm/ptrace.h>
-#include <asm/cacheflush.h>
-#include <asm/traps.h>
-
-extern struct cpu_cache_fns blk_cache_fns;
-
-#define HARVARD_CACHE
-
-/*
- * blk_flush_kern_dcache_page(kaddr)
- *
- * Ensure that the data held in the page kaddr is written back
- * to the page in question.
- *
- * - kaddr - kernel address (guaranteed to be page aligned)
- */
-static void __attribute__((naked))
-blk_flush_kern_dcache_page(void *kaddr)
-{
- asm(
- "add r1, r0, %0 \n\
- sub r1, r1, %1 \n\
-1: .word 0xec401f0e @ mcrr p15, 0, r0, r1, c14, 0 @ blocking \n\
- mov r0, #0 \n\
- mcr p15, 0, r0, c7, c5, 0 \n\
- mcr p15, 0, r0, c7, c10, 4 \n\
- mov pc, lr"
- :
- : "I" (PAGE_SIZE), "I" (L1_CACHE_BYTES));
-}
-
-/*
- * blk_dma_inv_range(start,end)
- *
- * Invalidate the data cache within the specified region; we will
- * be performing a DMA operation in this region and we want to
- * purge old data in the cache.
- *
- * - start - virtual start address of region
- * - end - virtual end address of region
- */
-static void __attribute__((naked))
-blk_dma_inv_range_unified(unsigned long start, unsigned long end)
-{
- asm(
- "tst r0, %0 \n\
- mcrne p15, 0, r0, c7, c11, 1 @ clean unified line \n\
- tst r1, %0 \n\
- mcrne p15, 0, r1, c7, c15, 1 @ clean & invalidate unified line\n\
- .word 0xec401f06 @ mcrr p15, 0, r1, r0, c6, 0 @ blocking \n\
- mov r0, #0 \n\
- mcr p15, 0, r0, c7, c10, 4 @ drain write buffer \n\
- mov pc, lr"
- :
- : "I" (L1_CACHE_BYTES - 1));
-}
-
-static void __attribute__((naked))
-blk_dma_inv_range_harvard(unsigned long start, unsigned long end)
-{
- asm(
- "tst r0, %0 \n\
- mcrne p15, 0, r0, c7, c10, 1 @ clean D line \n\
- tst r1, %0 \n\
- mcrne p15, 0, r1, c7, c14, 1 @ clean & invalidate D line \n\
- .word 0xec401f06 @ mcrr p15, 0, r1, r0, c6, 0 @ blocking \n\
- mov r0, #0 \n\
- mcr p15, 0, r0, c7, c10, 4 @ drain write buffer \n\
- mov pc, lr"
- :
- : "I" (L1_CACHE_BYTES - 1));
-}
-
-/*
- * blk_dma_clean_range(start,end)
- * - start - virtual start address of region
- * - end - virtual end address of region
- */
-static void __attribute__((naked))
-blk_dma_clean_range(unsigned long start, unsigned long end)
-{
- asm(
- ".word 0xec401f0c @ mcrr p15, 0, r1, r0, c12, 0 @ blocking \n\
- mov r0, #0 \n\
- mcr p15, 0, r0, c7, c10, 4 @ drain write buffer \n\
- mov pc, lr");
-}
-
-/*
- * blk_dma_flush_range(start,end)
- * - start - virtual start address of region
- * - end - virtual end address of region
- */
-static void __attribute__((naked))
-blk_dma_flush_range(unsigned long start, unsigned long end)
-{
- asm(
- ".word 0xec401f0e @ mcrr p15, 0, r1, r0, c14, 0 @ blocking \n\
- mov pc, lr");
-}
-
-static int blockops_trap(struct pt_regs *regs, unsigned int instr)
-{
- regs->ARM_r4 |= regs->ARM_r2;
- regs->ARM_pc += 4;
- return 0;
-}
-
-static char *func[] = {
- "Prefetch data range",
- "Clean+Invalidate data range",
- "Clean data range",
- "Invalidate data range",
- "Invalidate instr range"
-};
-
-static struct undef_hook blockops_hook __initdata = {
- .instr_mask = 0x0fffffd0,
- .instr_val = 0x0c401f00,
- .cpsr_mask = PSR_T_BIT,
- .cpsr_val = 0,
- .fn = blockops_trap,
-};
-
-static int __init blockops_check(void)
-{
- register unsigned int err asm("r4") = 0;
- unsigned int err_pos = 1;
- unsigned int cache_type;
- int i;
-
- asm("mrc p15, 0, %0, c0, c0, 1" : "=r" (cache_type));
-
- printk("Checking V6 block cache operations:\n");
- register_undef_hook(&blockops_hook);
-
- __asm__ ("mov r0, %0\n\t"
- "mov r1, %1\n\t"
- "mov r2, #1\n\t"
- ".word 0xec401f2c @ mcrr p15, 0, r1, r0, c12, 2\n\t"
- "mov r2, #2\n\t"
- ".word 0xec401f0e @ mcrr p15, 0, r1, r0, c14, 0\n\t"
- "mov r2, #4\n\t"
- ".word 0xec401f0c @ mcrr p15, 0, r1, r0, c12, 0\n\t"
- "mov r2, #8\n\t"
- ".word 0xec401f06 @ mcrr p15, 0, r1, r0, c6, 0\n\t"
- "mov r2, #16\n\t"
- ".word 0xec401f05 @ mcrr p15, 0, r1, r0, c5, 0\n\t"
- :
- : "r" (PAGE_OFFSET), "r" (PAGE_OFFSET + 128)
- : "r0", "r1", "r2");
-
- unregister_undef_hook(&blockops_hook);
-
- for (i = 0; i < ARRAY_SIZE(func); i++, err_pos <<= 1)
- printk("%30s: %ssupported\n", func[i], err & err_pos ? "not " : "");
-
- if ((err & 8) == 0) {
- printk(" --> Using %s block cache invalidate\n",
- cache_type & (1 << 24) ? "harvard" : "unified");
- if (cache_type & (1 << 24))
- cpu_cache.dma_inv_range = blk_dma_inv_range_harvard;
- else
- cpu_cache.dma_inv_range = blk_dma_inv_range_unified;
- }
- if ((err & 4) == 0) {
- printk(" --> Using block cache clean\n");
- cpu_cache.dma_clean_range = blk_dma_clean_range;
- }
- if ((err & 2) == 0) {
- printk(" --> Using block cache clean+invalidate\n");
- cpu_cache.dma_flush_range = blk_dma_flush_range;
- cpu_cache.flush_kern_dcache_page = blk_flush_kern_dcache_page;
- }
-
- return 0;
-}
-
-__initcall(blockops_check);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index c168f32..8b276ee 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -420,7 +420,8 @@
* Set up device the mappings. Since we clear out the page tables for all
* mappings above VMALLOC_END, we will remove any debug device mappings.
* This means you have to be careful how you debug this function, or any
- * called function. (Do it by code inspection!)
+ * called function. This means you can't use any function or debugging
+ * method which may touch any device, otherwise the kernel _will_ crash.
*/
static void __init devicemaps_init(struct machine_desc *mdesc)
{
@@ -428,6 +429,12 @@
unsigned long addr;
void *vectors;
+ /*
+ * Allocate the vector page early.
+ */
+ vectors = alloc_bootmem_low_pages(PAGE_SIZE);
+ BUG_ON(!vectors);
+
for (addr = VMALLOC_END; addr; addr += PGDIR_SIZE)
pmd_clear(pmd_off_k(addr));
@@ -461,12 +468,6 @@
create_mapping(&map);
#endif
- flush_cache_all();
- local_flush_tlb_all();
-
- vectors = alloc_bootmem_low_pages(PAGE_SIZE);
- BUG_ON(!vectors);
-
/*
* Create a mapping for the machine vectors at the high-vectors
* location (0xffff0000). If we aren't using high-vectors, also
@@ -491,12 +492,13 @@
mdesc->map_io();
/*
- * Finally flush the tlb again - this ensures that we're in a
- * consistent state wrt the writebuffer if the writebuffer needs
- * draining. After this point, we can start to touch devices
- * again.
+ * Finally flush the caches and tlb to ensure that we're in a
+ * consistent state wrt the writebuffer. This also ensures that
+ * any write-allocated cache lines in the vector page are written
+ * back. After this point, we can start to touch devices again.
*/
local_flush_tlb_all();
+ flush_cache_all();
}
/*
diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c
index 0f128c2..1090139 100644
--- a/arch/arm/mm/ioremap.c
+++ b/arch/arm/mm/ioremap.c
@@ -130,8 +130,7 @@
* mapping. See include/asm-arm/proc-armv/pgtable.h for more information.
*/
void __iomem *
-__ioremap(unsigned long phys_addr, size_t size, unsigned long flags,
- unsigned long align)
+__ioremap(unsigned long phys_addr, size_t size, unsigned long flags)
{
void * addr;
struct vm_struct * area;
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 5a5b246..8b6008a 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -40,7 +40,7 @@
#endif
unsigned long pci_probe_only = 1;
-unsigned long pci_assign_all_buses = 0;
+int pci_assign_all_buses = 0;
/*
* legal IO pages under MAX_ISA_PORT. This is to ensure we don't touch
@@ -55,11 +55,6 @@
static void do_bus_setup(struct pci_bus *bus);
#endif
-unsigned int pcibios_assign_all_busses(void)
-{
- return pci_assign_all_buses;
-}
-
/* pci_io_base -- the base address from which io bars are offsets.
* This is the lowest I/O base address (so bar values are always positive),
* and it *must* be the start of ISA space if an ISA bus exists because
@@ -1186,17 +1181,6 @@
remap_bus_range(hose->bus);
}
-/*
- * ppc64 can have multifunction devices that do not respond to function 0.
- * In this case we must scan all functions.
- * XXX this can go now, we use the OF device tree in all the
- * cases that caused problems. -- paulus
- */
-int pcibios_scan_all_fns(struct pci_bus *bus, int devfn)
-{
- return 0;
-}
-
static void __devinit fixup_resource(struct resource *res, struct pci_dev *dev)
{
struct pci_controller *hose = pci_bus_to_host(dev->bus);
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 59846b4..af4d1bc 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -146,9 +146,6 @@
EXPORT_SYMBOL(pci_bus_io_base_phys);
EXPORT_SYMBOL(pci_bus_mem_base_phys);
EXPORT_SYMBOL(pci_bus_to_hose);
-EXPORT_SYMBOL(pci_resource_to_bus);
-EXPORT_SYMBOL(pci_phys_to_bus);
-EXPORT_SYMBOL(pci_bus_to_phys);
#endif /* CONFIG_PCI */
#ifdef CONFIG_NOT_COHERENT_CACHE
diff --git a/include/asm-ppc64/ptrace-common.h b/arch/powerpc/kernel/ptrace-common.h
similarity index 100%
rename from include/asm-ppc64/ptrace-common.h
rename to arch/powerpc/kernel/ptrace-common.h
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 3d2abd9..400793c 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -36,8 +36,9 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
+
#ifdef CONFIG_PPC64
-#include <asm/ptrace-common.h>
+#include "ptrace-common.h"
#endif
#ifdef CONFIG_PPC32
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 91eb952..6176264 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -33,7 +33,8 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/system.h>
-#include <asm/ptrace-common.h>
+
+#include "ptrace-common.h"
/*
* does not yet catch signals sent when the child dies.
diff --git a/arch/powerpc/mm/imalloc.c b/arch/powerpc/mm/imalloc.c
index f4ca29c..f9587bc 100644
--- a/arch/powerpc/mm/imalloc.c
+++ b/arch/powerpc/mm/imalloc.c
@@ -14,9 +14,10 @@
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <asm/semaphore.h>
-#include <asm/imalloc.h>
#include <asm/cacheflush.h>
+#include "mmu_decl.h"
+
static DECLARE_MUTEX(imlist_sem);
struct vm_struct * imlist = NULL;
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 1134f70..81cfb0c 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -64,7 +64,8 @@
#include <asm/iommu.h>
#include <asm/abs_addr.h>
#include <asm/vdso.h>
-#include <asm/imalloc.h>
+
+#include "mmu_decl.h"
#ifdef DEBUG
#define DBG(fmt...) printk(fmt)
diff --git a/arch/powerpc/mm/mmu_decl.h b/arch/powerpc/mm/mmu_decl.h
index a4d7a32..bea2d21 100644
--- a/arch/powerpc/mm/mmu_decl.h
+++ b/arch/powerpc/mm/mmu_decl.h
@@ -33,7 +33,6 @@
extern int __map_without_bats;
extern unsigned long ioremap_base;
-extern unsigned long ioremap_bot;
extern unsigned int rtas_data, rtas_size;
extern PTE *Hash, *Hash_end;
@@ -42,6 +41,7 @@
extern unsigned int num_tlbcam_entries;
#endif
+extern unsigned long ioremap_bot;
extern unsigned long __max_low_memory;
extern unsigned long __initial_memory_limit;
extern unsigned long total_memory;
@@ -84,4 +84,16 @@
else
_tlbie(va);
}
+#else /* CONFIG_PPC64 */
+/* imalloc region types */
+#define IM_REGION_UNUSED 0x1
+#define IM_REGION_SUBSET 0x2
+#define IM_REGION_EXISTS 0x4
+#define IM_REGION_OVERLAP 0x8
+#define IM_REGION_SUPERSET 0x10
+
+extern struct vm_struct * im_get_free_area(unsigned long size);
+extern struct vm_struct * im_get_area(unsigned long v_addr, unsigned long size,
+ int region_type);
+extern void im_free(void *addr);
#endif
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index c7f7bb6..2ffca63 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -64,7 +64,8 @@
#include <asm/iommu.h>
#include <asm/abs_addr.h>
#include <asm/vdso.h>
-#include <asm/imalloc.h>
+
+#include "mmu_decl.h"
unsigned long ioremap_bot = IMALLOC_BASE;
static unsigned long phbs_io_bot = PHBS_IO_BASE;
diff --git a/arch/powerpc/platforms/powermac/smp.c b/arch/powerpc/platforms/powermac/smp.c
index 957b091..fb2a7c7 100644
--- a/arch/powerpc/platforms/powermac/smp.c
+++ b/arch/powerpc/platforms/powermac/smp.c
@@ -34,6 +34,7 @@
#include <linux/errno.h>
#include <linux/hardirq.h>
#include <linux/cpu.h>
+#include <linux/compiler.h>
#include <asm/ptrace.h>
#include <asm/atomic.h>
@@ -631,8 +632,9 @@
mb();
/* wait for the secondary to have taken it */
- for (t = 100000; t > 0 && sec_tb_reset; --t)
- udelay(10);
+ /* note: can't use udelay here, since it needs the timebase running */
+ for (t = 10000000; t > 0 && sec_tb_reset; --t)
+ barrier();
if (sec_tb_reset)
/* XXX BUG_ON here? */
printk(KERN_WARNING "Timeout waiting sync(2) on second CPU\n");
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 105f053..58d1cc2 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -361,7 +361,8 @@
DBG("%p: %s: enable_irq: %d (src %d)\n", mpic, mpic->name, irq, src);
mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI,
- mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) & ~MPIC_VECPRI_MASK);
+ mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) &
+ ~MPIC_VECPRI_MASK);
/* make sure mask gets to controller before we return to user */
do {
@@ -381,7 +382,8 @@
DBG("%s: disable_irq: %d (src %d)\n", mpic->name, irq, src);
mpic_irq_write(src, MPIC_IRQ_VECTOR_PRI,
- mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) | MPIC_VECPRI_MASK);
+ mpic_irq_read(src, MPIC_IRQ_VECTOR_PRI) |
+ MPIC_VECPRI_MASK);
/* make sure mask gets to controller before we return to user */
do {
@@ -735,12 +737,13 @@
spin_lock_irqsave(&mpic_lock, flags);
if (is_ipi) {
- reg = mpic_ipi_read(irq - mpic->ipi_offset) & MPIC_VECPRI_PRIORITY_MASK;
+ reg = mpic_ipi_read(irq - mpic->ipi_offset) &
+ ~MPIC_VECPRI_PRIORITY_MASK;
mpic_ipi_write(irq - mpic->ipi_offset,
reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT));
} else {
- reg = mpic_irq_read(irq - mpic->irq_offset, MPIC_IRQ_VECTOR_PRI)
- & MPIC_VECPRI_PRIORITY_MASK;
+ reg = mpic_irq_read(irq - mpic->irq_offset,MPIC_IRQ_VECTOR_PRI)
+ & ~MPIC_VECPRI_PRIORITY_MASK;
mpic_irq_write(irq - mpic->irq_offset, MPIC_IRQ_VECTOR_PRI,
reg | (pri << MPIC_VECPRI_PRIORITY_SHIFT));
}
diff --git a/drivers/i2c/busses/i2c-ixp2000.c b/drivers/i2c/busses/i2c-ixp2000.c
index cef024a..cd6f45d 100644
--- a/drivers/i2c/busses/i2c-ixp2000.c
+++ b/drivers/i2c/busses/i2c-ixp2000.c
@@ -36,8 +36,6 @@
#include <asm/hardware.h> /* Pick up IXP2000-specific bits */
#include <asm/arch/gpio.h>
-static struct device_driver ixp2000_i2c_driver;
-
static inline int ixp2000_scl_pin(void *data)
{
return ((struct ixp2000_i2c_pins*)data)->scl_pin;
@@ -120,7 +118,7 @@
drv_data->algo_data.timeout = 100;
drv_data->adapter.id = I2C_HW_B_IXP2000,
- strlcpy(drv_data->adapter.name, ixp2000_i2c_driver.name,
+ strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
I2C_NAME_SIZE);
drv_data->adapter.algo_data = &drv_data->algo_data,
@@ -132,7 +130,7 @@
gpio_line_set(gpio->sda_pin, 0);
if ((err = i2c_bit_add_bus(&drv_data->adapter)) != 0) {
- dev_err(dev, "Could not install, error %d\n", err);
+ dev_err(&plat_dev->dev, "Could not install, error %d\n", err);
kfree(drv_data);
return err;
}
diff --git a/drivers/i2c/busses/i2c-ixp4xx.c b/drivers/i2c/busses/i2c-ixp4xx.c
index f87220b..e422d8b 100644
--- a/drivers/i2c/busses/i2c-ixp4xx.c
+++ b/drivers/i2c/busses/i2c-ixp4xx.c
@@ -35,8 +35,6 @@
#include <asm/hardware.h> /* Pick up IXP4xx-specific bits */
-static struct platform_driver ixp4xx_i2c_driver;
-
static inline int ixp4xx_scl_pin(void *data)
{
return ((struct ixp4xx_i2c_pins*)data)->scl_pin;
@@ -128,7 +126,7 @@
drv_data->algo_data.timeout = 100;
drv_data->adapter.id = I2C_HW_B_IXP4XX;
- strlcpy(drv_data->adapter.name, ixp4xx_i2c_driver.driver.name,
+ strlcpy(drv_data->adapter.name, plat_dev->dev.driver->name,
I2C_NAME_SIZE);
drv_data->adapter.algo_data = &drv_data->algo_data;
@@ -140,8 +138,7 @@
gpio_line_set(gpio->sda_pin, 0);
if ((err = i2c_bit_add_bus(&drv_data->adapter) != 0)) {
- printk(KERN_ERR "ERROR: Could not install %s\n",
- plat_dev->dev.bus_id);
+ printk(KERN_ERR "ERROR: Could not install %s\n", plat_dev->dev.bus_id);
kfree(drv_data);
return err;
diff --git a/drivers/mtd/maps/ipaq-flash.c b/drivers/mtd/maps/ipaq-flash.c
index 35097c9..b8ccb0a 100644
--- a/drivers/mtd/maps/ipaq-flash.c
+++ b/drivers/mtd/maps/ipaq-flash.c
@@ -246,7 +246,7 @@
ipaq_map[i].size = h3xxx_max_flash_size;
ipaq_map[i].set_vpp = h3xxx_set_vpp;
ipaq_map[i].phys = cs_phys[i];
- ipaq_map[i].virt = __ioremap(cs_phys[i], 0x04000000, 0, 1);
+ ipaq_map[i].virt = ioremap(cs_phys[i], 0x04000000);
if (machine_is_h3100 () || machine_is_h1900())
ipaq_map[i].bankwidth = 2;
}
@@ -280,7 +280,7 @@
nb_parts = ARRAY_SIZE(jornada_partitions);
ipaq_map[0].size = jornada_max_flash_size;
ipaq_map[0].set_vpp = jornada56x_set_vpp;
- ipaq_map[0].virt = (__u32)__ioremap(0x0, 0x04000000, 0, 1);
+ ipaq_map[0].virt = (__u32)ioremap(0x0, 0x04000000);
}
#endif
#ifdef CONFIG_SA1100_JORNADA720
@@ -442,7 +442,7 @@
ipaq_map[0].size = 0x80000;
ipaq_map[0].set_vpp = h3xxx_set_vpp;
ipaq_map[0].phys = 0x0;
- ipaq_map[0].virt = __ioremap(0x0, 0x04000000, 0, 1);
+ ipaq_map[0].virt = ioremap(0x0, 0x04000000);
ipaq_map[0].bankwidth = 2;
printk(KERN_NOTICE "iPAQ flash: probing %d-bit flash bus, window=%lx with JEDEC.\n", ipaq_map[0].bankwidth*8, ipaq_map[0].virt);
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index fc7a78e..2c9cc7f 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -159,12 +159,12 @@
return -ENODEV;
window_size = dev->resource->end - dev->resource->start + 1;
- dev_info(_dev, "Probe of IXP2000 flash(%d banks x %dMiB)\n",
- ixp_data->nr_banks, ((u32)window_size >> 20));
+ dev_info(&dev->dev, "Probe of IXP2000 flash(%d banks x %dMiB)\n",
+ ixp_data->nr_banks, ((u32)window_size >> 20));
if (plat->width != 1) {
- dev_err(_dev, "IXP2000 MTD map only supports 8-bit mode, asking for %d\n",
- plat->width * 8);
+ dev_err(&dev->dev, "IXP2000 MTD map only supports 8-bit mode, asking for %d\n",
+ plat->width * 8);
return -EIO;
}
@@ -202,7 +202,7 @@
dev->resource->end - dev->resource->start + 1,
dev->dev.bus_id);
if (!info->res) {
- dev_err(_dev, "Could not reserve memory region\n");
+ dev_err(&dev->dev, "Could not reserve memory region\n");
err = -ENOMEM;
goto Error;
}
@@ -210,7 +210,7 @@
info->map.map_priv_1 = (unsigned long) ioremap(dev->resource->start,
dev->resource->end - dev->resource->start + 1);
if (!info->map.map_priv_1) {
- dev_err(_dev, "Failed to ioremap flash region\n");
+ dev_err(&dev->dev, "Failed to ioremap flash region\n");
err = -EIO;
goto Error;
}
@@ -221,13 +221,13 @@
*/
erratum44_workaround = ixp2000_has_broken_slowport();
- dev_info(_dev, "Erratum 44 workaround %s\n",
+ dev_info(&dev->dev, "Erratum 44 workaround %s\n",
erratum44_workaround ? "enabled" : "disabled");
#endif
info->mtd = do_map_probe(plat->map_name, &info->map);
if (!info->mtd) {
- dev_err(_dev, "map_probe failed\n");
+ dev_err(&dev->dev, "map_probe failed\n");
err = -ENXIO;
goto Error;
}
@@ -237,7 +237,7 @@
if (err > 0) {
err = add_mtd_partitions(info->mtd, info->partitions, err);
if(err)
- dev_err(_dev, "Could not parse partitions\n");
+ dev_err(&dev->dev, "Could not parse partitions\n");
}
if (err)
@@ -251,8 +251,8 @@
}
static struct platform_driver ixp2000_flash_driver = {
- .probe = &ixp2000_flash_probe,
- .remove = &ixp2000_flash_remove
+ .probe = ixp2000_flash_probe,
+ .remove = ixp2000_flash_remove,
.driver = {
.name = "IXP2000-Flash",
},
diff --git a/drivers/mtd/nand/h1910.c b/drivers/mtd/nand/h1910.c
index 041e4b3..f68f7a9 100644
--- a/drivers/mtd/nand/h1910.c
+++ b/drivers/mtd/nand/h1910.c
@@ -112,7 +112,7 @@
if (!machine_is_h1900())
return -ENODEV;
- nandaddr = __ioremap(0x08000000, 0x1000, 0, 1);
+ nandaddr = ioremap(0x08000000, 0x1000);
if (!nandaddr) {
printk("Failed to ioremap nand flash.\n");
return -ENOMEM;
diff --git a/drivers/serial/amba-pl011.c b/drivers/serial/amba-pl011.c
index 938d185..89d7bd3 100644
--- a/drivers/serial/amba-pl011.c
+++ b/drivers/serial/amba-pl011.c
@@ -49,7 +49,6 @@
#include <linux/serial.h>
#include <asm/io.h>
-#include <asm/irq.h>
#include <asm/sizes.h>
#include <asm/hardware/amba.h>
#include <asm/hardware/clock.h>
@@ -63,7 +62,8 @@
#define AMBA_ISR_PASS_LIMIT 256
-#define UART_DUMMY_RSR_RX 256
+#define UART_DR_ERROR (UART011_DR_OE|UART011_DR_BE|UART011_DR_PE|UART011_DR_FE)
+#define UART_DUMMY_DR_RX (1 << 16)
/*
* We wrap our port structure around the generic uart_port.
@@ -116,7 +116,7 @@
#endif
{
struct tty_struct *tty = uap->port.info->tty;
- unsigned int status, ch, flag, rsr, max_count = 256;
+ unsigned int status, ch, flag, max_count = 256;
status = readw(uap->port.membase + UART01x_FR);
while ((status & UART01x_FR_RXFE) == 0 && max_count--) {
@@ -129,7 +129,7 @@
*/
}
- ch = readw(uap->port.membase + UART01x_DR);
+ ch = readw(uap->port.membase + UART01x_DR) | UART_DUMMY_DR_RX;
flag = TTY_NORMAL;
uap->port.icount.rx++;
@@ -137,34 +137,33 @@
* Note that the error handling code is
* out of the main execution path
*/
- rsr = readw(uap->port.membase + UART01x_RSR) | UART_DUMMY_RSR_RX;
- if (unlikely(rsr & UART01x_RSR_ANY)) {
- if (rsr & UART01x_RSR_BE) {
- rsr &= ~(UART01x_RSR_FE | UART01x_RSR_PE);
+ if (unlikely(ch & UART_DR_ERROR)) {
+ if (ch & UART011_DR_BE) {
+ ch &= ~(UART011_DR_FE | UART011_DR_PE);
uap->port.icount.brk++;
if (uart_handle_break(&uap->port))
goto ignore_char;
- } else if (rsr & UART01x_RSR_PE)
+ } else if (ch & UART011_DR_PE)
uap->port.icount.parity++;
- else if (rsr & UART01x_RSR_FE)
+ else if (ch & UART011_DR_FE)
uap->port.icount.frame++;
- if (rsr & UART01x_RSR_OE)
+ if (ch & UART011_DR_OE)
uap->port.icount.overrun++;
- rsr &= uap->port.read_status_mask;
+ ch &= uap->port.read_status_mask;
- if (rsr & UART01x_RSR_BE)
+ if (ch & UART011_DR_BE)
flag = TTY_BREAK;
- else if (rsr & UART01x_RSR_PE)
+ else if (ch & UART011_DR_PE)
flag = TTY_PARITY;
- else if (rsr & UART01x_RSR_FE)
+ else if (ch & UART011_DR_FE)
flag = TTY_FRAME;
}
if (uart_handle_sysrq_char(&uap->port, ch, regs))
goto ignore_char;
- uart_insert_char(&uap->port, rsr, UART01x_RSR_OE, ch, flag);
+ uart_insert_char(&uap->port, ch, UART011_DR_OE, ch, flag);
ignore_char:
status = readw(uap->port.membase + UART01x_FR);
@@ -476,33 +475,33 @@
*/
uart_update_timeout(port, termios->c_cflag, baud);
- port->read_status_mask = UART01x_RSR_OE;
+ port->read_status_mask = UART011_DR_OE | 255;
if (termios->c_iflag & INPCK)
- port->read_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+ port->read_status_mask |= UART011_DR_FE | UART011_DR_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
- port->read_status_mask |= UART01x_RSR_BE;
+ port->read_status_mask |= UART011_DR_BE;
/*
* Characters to ignore
*/
port->ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= UART01x_RSR_FE | UART01x_RSR_PE;
+ port->ignore_status_mask |= UART011_DR_FE | UART011_DR_PE;
if (termios->c_iflag & IGNBRK) {
- port->ignore_status_mask |= UART01x_RSR_BE;
+ port->ignore_status_mask |= UART011_DR_BE;
/*
* If we're ignoring parity and break indicators,
* ignore overruns too (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
- port->ignore_status_mask |= UART01x_RSR_OE;
+ port->ignore_status_mask |= UART011_DR_OE;
}
/*
* Ignore all characters if CREAD is not set.
*/
if ((termios->c_cflag & CREAD) == 0)
- port->ignore_status_mask |= UART_DUMMY_RSR_RX;
+ port->ignore_status_mask |= UART_DUMMY_DR_RX;
if (UART_ENABLE_MS(port, termios->c_cflag))
pl011_enable_ms(port);
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index 0e3daf6..25a0864 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -161,7 +161,6 @@
static void sa1100_start_tx(struct uart_port *port)
{
struct sa1100_port *sport = (struct sa1100_port *)port;
- unsigned long flags;
u32 utcr3;
utcr3 = UART_GET_UTCR3(sport);
diff --git a/include/asm-arm/arch-ixp4xx/io.h b/include/asm-arm/arch-ixp4xx/io.h
index 688f7f9..942b622 100644
--- a/include/asm-arm/arch-ixp4xx/io.h
+++ b/include/asm-arm/arch-ixp4xx/io.h
@@ -59,11 +59,10 @@
* fallback to the default.
*/
static inline void __iomem *
-__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned long align)
+__ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags)
{
- extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
if((addr < 0x48000000) || (addr > 0x4fffffff))
- return __ioremap(addr, size, flags, align);
+ return __ioremap(addr, size, flags);
return (void *)addr;
}
@@ -71,13 +70,11 @@
static inline void
__ixp4xx_iounmap(void __iomem *addr)
{
- extern void __iounmap(void __iomem *addr);
-
if ((u32)addr >= VMALLOC_START)
__iounmap(addr);
}
-#define __arch_ioremap(a, s, f, x) __ixp4xx_ioremap(a, s, f, x)
+#define __arch_ioremap(a, s, f) __ixp4xx_ioremap(a, s, f)
#define __arch_iounmap(a) __ixp4xx_iounmap(a)
#define writeb(v, p) __ixp4xx_writeb(v, p)
diff --git a/include/asm-arm/hardware/amba_serial.h b/include/asm-arm/hardware/amba_serial.h
index 71770aa..dc726ff 100644
--- a/include/asm-arm/hardware/amba_serial.h
+++ b/include/asm-arm/hardware/amba_serial.h
@@ -50,6 +50,11 @@
#define UART011_ICR 0x44 /* Interrupt clear register. */
#define UART011_DMACR 0x48 /* DMA control register. */
+#define UART011_DR_OE (1 << 11)
+#define UART011_DR_BE (1 << 10)
+#define UART011_DR_PE (1 << 9)
+#define UART011_DR_FE (1 << 8)
+
#define UART01x_RSR_OE 0x08
#define UART01x_RSR_BE 0x04
#define UART01x_RSR_PE 0x02
diff --git a/include/asm-arm/io.h b/include/asm-arm/io.h
index 2e67996..ae69db4 100644
--- a/include/asm-arm/io.h
+++ b/include/asm-arm/io.h
@@ -55,6 +55,12 @@
#define __raw_readl(a) (__chk_io_ptr(a), *(volatile unsigned int __force *)(a))
/*
+ * Architecture ioremap implementation.
+ */
+extern void __iomem * __ioremap(unsigned long, size_t, unsigned long);
+extern void __iounmap(void __iomem *addr);
+
+/*
* Bad read/write accesses...
*/
extern void __readwrite_bug(const char *fn);
@@ -256,18 +262,15 @@
* ioremap takes a PCI memory address, as specified in
* Documentation/IO-mapping.txt.
*/
-extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long);
-extern void __iounmap(void __iomem *addr);
-
#ifndef __arch_ioremap
-#define ioremap(cookie,size) __ioremap(cookie,size,0,1)
-#define ioremap_nocache(cookie,size) __ioremap(cookie,size,0,1)
-#define ioremap_cached(cookie,size) __ioremap(cookie,size,L_PTE_CACHEABLE,1)
+#define ioremap(cookie,size) __ioremap(cookie,size,0)
+#define ioremap_nocache(cookie,size) __ioremap(cookie,size,0)
+#define ioremap_cached(cookie,size) __ioremap(cookie,size,L_PTE_CACHEABLE)
#define iounmap(cookie) __iounmap(cookie)
#else
-#define ioremap(cookie,size) __arch_ioremap((cookie),(size),0,1)
-#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0,1)
-#define ioremap_cached(cookie,size) __arch_ioremap((cookie),(size),L_PTE_CACHEABLE,1)
+#define ioremap(cookie,size) __arch_ioremap((cookie),(size),0)
+#define ioremap_nocache(cookie,size) __arch_ioremap((cookie),(size),0)
+#define ioremap_cached(cookie,size) __arch_ioremap((cookie),(size),L_PTE_CACHEABLE)
#define iounmap(cookie) __arch_iounmap(cookie)
#endif
diff --git a/include/asm-arm/uaccess.h b/include/asm-arm/uaccess.h
index a2fdad0..064f0f5 100644
--- a/include/asm-arm/uaccess.h
+++ b/include/asm-arm/uaccess.h
@@ -100,7 +100,6 @@
extern int __get_user_1(void *);
extern int __get_user_2(void *);
extern int __get_user_4(void *);
-extern int __get_user_8(void *);
extern int __get_user_bad(void);
#define __get_user_x(__r2,__p,__e,__s,__i...) \
@@ -114,7 +113,7 @@
#define get_user(x,p) \
({ \
const register typeof(*(p)) __user *__p asm("r0") = (p);\
- register typeof(*(p)) __r2 asm("r2"); \
+ register unsigned int __r2 asm("r2"); \
register int __e asm("r0"); \
switch (sizeof(*(__p))) { \
case 1: \
@@ -126,12 +125,9 @@
case 4: \
__get_user_x(__r2, __p, __e, 4, "lr"); \
break; \
- case 8: \
- __get_user_x(__r2, __p, __e, 8, "lr"); \
- break; \
default: __e = __get_user_bad(); break; \
} \
- x = __r2; \
+ x = (typeof(*(p))) __r2; \
__e; \
})
diff --git a/include/asm-powerpc/dma-mapping.h b/include/asm-powerpc/dma-mapping.h
new file mode 100644
index 0000000..59a8016
--- /dev/null
+++ b/include/asm-powerpc/dma-mapping.h
@@ -0,0 +1,285 @@
+/*
+ * Copyright (C) 2004 IBM
+ *
+ * Implements the generic device dma API for powerpc.
+ * the pci and vio busses
+ */
+#ifndef _ASM_DMA_MAPPING_H
+#define _ASM_DMA_MAPPING_H
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/cache.h>
+/* need struct page definitions */
+#include <linux/mm.h>
+#include <asm/scatterlist.h>
+#include <asm/io.h>
+#include <asm/bug.h>
+
+#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
+
+#ifdef CONFIG_NOT_COHERENT_CACHE
+/*
+ * DMA-consistent mapping functions for PowerPCs that don't support
+ * cache snooping. These allocate/free a region of uncached mapped
+ * memory space for use with DMA devices. Alternatively, you could
+ * allocate the space "normally" and use the cache management functions
+ * to ensure it is consistent.
+ */
+extern void *__dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp);
+extern void __dma_free_coherent(size_t size, void *vaddr);
+extern void __dma_sync(void *vaddr, size_t size, int direction);
+extern void __dma_sync_page(struct page *page, unsigned long offset,
+ size_t size, int direction);
+
+#else /* ! CONFIG_NOT_COHERENT_CACHE */
+/*
+ * Cache coherent cores.
+ */
+
+#define __dma_alloc_coherent(gfp, size, handle) NULL
+#define __dma_free_coherent(size, addr) do { } while (0)
+#define __dma_sync(addr, size, rw) do { } while (0)
+#define __dma_sync_page(pg, off, sz, rw) do { } while (0)
+
+#endif /* ! CONFIG_NOT_COHERENT_CACHE */
+
+#ifdef CONFIG_PPC64
+
+extern int dma_supported(struct device *dev, u64 mask);
+extern int dma_set_mask(struct device *dev, u64 dma_mask);
+extern void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag);
+extern void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
+ dma_addr_t dma_handle);
+extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+ size_t size, enum dma_data_direction direction);
+extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction);
+extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction);
+extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+ size_t size, enum dma_data_direction direction);
+extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction direction);
+extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nhwentries, enum dma_data_direction direction);
+
+#else /* CONFIG_PPC64 */
+
+#define dma_supported(dev, mask) (1)
+
+static inline int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+ if (!dev->dma_mask || !dma_supported(dev, mask))
+ return -EIO;
+
+ *dev->dma_mask = dma_mask;
+
+ return 0;
+}
+
+static inline void *dma_alloc_coherent(struct device *dev, size_t size,
+ dma_addr_t * dma_handle,
+ gfp_t gfp)
+{
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ return __dma_alloc_coherent(size, dma_handle, gfp);
+#else
+ void *ret;
+ /* ignore region specifiers */
+ gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
+
+ if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
+ gfp |= GFP_DMA;
+
+ ret = (void *)__get_free_pages(gfp, get_order(size));
+
+ if (ret != NULL) {
+ memset(ret, 0, size);
+ *dma_handle = virt_to_bus(ret);
+ }
+
+ return ret;
+#endif
+}
+
+static inline void
+dma_free_coherent(struct device *dev, size_t size, void *vaddr,
+ dma_addr_t dma_handle)
+{
+#ifdef CONFIG_NOT_COHERENT_CACHE
+ __dma_free_coherent(size, vaddr);
+#else
+ free_pages((unsigned long)vaddr, get_order(size));
+#endif
+}
+
+static inline dma_addr_t
+dma_map_single(struct device *dev, void *ptr, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+
+ __dma_sync(ptr, size, direction);
+
+ return virt_to_bus(ptr);
+}
+
+/* We do nothing. */
+#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
+
+static inline dma_addr_t
+dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+
+ __dma_sync_page(page, offset, size, direction);
+
+ return page_to_bus(page) + offset;
+}
+
+/* We do nothing. */
+#define dma_unmap_page(dev, handle, size, dir) do { } while (0)
+
+static inline int
+dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+ int i;
+
+ BUG_ON(direction == DMA_NONE);
+
+ for (i = 0; i < nents; i++, sg++) {
+ BUG_ON(!sg->page);
+ __dma_sync_page(sg->page, sg->offset, sg->length, direction);
+ sg->dma_address = page_to_bus(sg->page) + sg->offset;
+ }
+
+ return nents;
+}
+
+/* We don't do anything here. */
+#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
+
+#endif /* CONFIG_PPC64 */
+
+static inline void dma_sync_single_for_cpu(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+ __dma_sync(bus_to_virt(dma_handle), size, direction);
+}
+
+static inline void dma_sync_single_for_device(struct device *dev,
+ dma_addr_t dma_handle, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+ __dma_sync(bus_to_virt(dma_handle), size, direction);
+}
+
+static inline void dma_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+ int i;
+
+ BUG_ON(direction == DMA_NONE);
+
+ for (i = 0; i < nents; i++, sg++)
+ __dma_sync_page(sg->page, sg->offset, sg->length, direction);
+}
+
+static inline void dma_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg, int nents,
+ enum dma_data_direction direction)
+{
+ int i;
+
+ BUG_ON(direction == DMA_NONE);
+
+ for (i = 0; i < nents; i++, sg++)
+ __dma_sync_page(sg->page, sg->offset, sg->length, direction);
+}
+
+static inline int dma_mapping_error(dma_addr_t dma_addr)
+{
+#ifdef CONFIG_PPC64
+ return (dma_addr == DMA_ERROR_CODE);
+#else
+ return 0;
+#endif
+}
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
+#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
+#ifdef CONFIG_NOT_COHERENT_CACHE
+#define dma_is_consistent(d) (0)
+#else
+#define dma_is_consistent(d) (1)
+#endif
+
+static inline int dma_get_cache_alignment(void)
+{
+#ifdef CONFIG_PPC64
+ /* no easy way to get cache size on all processors, so return
+ * the maximum possible, to be safe */
+ return (1 << L1_CACHE_SHIFT_MAX);
+#else
+ /*
+ * Each processor family will define its own L1_CACHE_SHIFT,
+ * L1_CACHE_BYTES wraps to this, so this is always safe.
+ */
+ return L1_CACHE_BYTES;
+#endif
+}
+
+static inline void dma_sync_single_range_for_cpu(struct device *dev,
+ dma_addr_t dma_handle, unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+ /* just sync everything for now */
+ dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction);
+}
+
+static inline void dma_sync_single_range_for_device(struct device *dev,
+ dma_addr_t dma_handle, unsigned long offset, size_t size,
+ enum dma_data_direction direction)
+{
+ /* just sync everything for now */
+ dma_sync_single_for_device(dev, dma_handle, offset + size, direction);
+}
+
+static inline void dma_cache_sync(void *vaddr, size_t size,
+ enum dma_data_direction direction)
+{
+ BUG_ON(direction == DMA_NONE);
+ __dma_sync(vaddr, size, (int)direction);
+}
+
+/*
+ * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
+ */
+struct dma_mapping_ops {
+ void * (*alloc_coherent)(struct device *dev, size_t size,
+ dma_addr_t *dma_handle, gfp_t flag);
+ void (*free_coherent)(struct device *dev, size_t size,
+ void *vaddr, dma_addr_t dma_handle);
+ dma_addr_t (*map_single)(struct device *dev, void *ptr,
+ size_t size, enum dma_data_direction direction);
+ void (*unmap_single)(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction);
+ int (*map_sg)(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction direction);
+ void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction direction);
+ int (*dma_supported)(struct device *dev, u64 mask);
+ int (*dac_dma_supported)(struct device *dev, u64 mask);
+};
+
+#endif /* _ASM_DMA_MAPPING_H */
diff --git a/include/asm-ppc64/io.h b/include/asm-powerpc/io.h
similarity index 98%
rename from include/asm-ppc64/io.h
rename to include/asm-powerpc/io.h
index 77fc07c..48938d8 100644
--- a/include/asm-ppc64/io.h
+++ b/include/asm-powerpc/io.h
@@ -1,5 +1,5 @@
-#ifndef _PPC64_IO_H
-#define _PPC64_IO_H
+#ifndef _ASM_POWERPC_IO_H
+#define _ASM_POWERPC_IO_H
/*
* This program is free software; you can redistribute it and/or
@@ -8,7 +8,10 @@
* 2 of the License, or (at your option) any later version.
*/
-#include <linux/config.h>
+#ifndef CONFIG_PPC64
+#include <asm-ppc/io.h>
+#else
+
#include <linux/compiler.h>
#include <asm/page.h>
#include <asm/byteorder.h>
@@ -455,4 +458,5 @@
#endif /* __KERNEL__ */
-#endif /* _PPC64_IO_H */
+#endif /* CONFIG_PPC64 */
+#endif /* _ASM_POWERPC_IO_H */
diff --git a/include/asm-ppc64/mmu.h b/include/asm-powerpc/mmu.h
similarity index 98%
rename from include/asm-ppc64/mmu.h
rename to include/asm-powerpc/mmu.h
index 1a7e0af..c1b4bba 100644
--- a/include/asm-ppc64/mmu.h
+++ b/include/asm-powerpc/mmu.h
@@ -1,3 +1,10 @@
+#ifndef _ASM_POWERPC_MMU_H_
+#define _ASM_POWERPC_MMU_H_
+
+#ifndef CONFIG_PPC64
+#include <asm-ppc/mmu.h>
+#else
+
/*
* PowerPC memory management structures
*
@@ -10,10 +17,6 @@
* 2 of the License, or (at your option) any later version.
*/
-#ifndef _PPC64_MMU_H_
-#define _PPC64_MMU_H_
-
-#include <linux/config.h>
#include <asm/asm-compat.h>
#include <asm/page.h>
@@ -392,4 +395,5 @@
#endif /* __ASSEMBLY */
-#endif /* _PPC64_MMU_H_ */
+#endif /* CONFIG_PPC64 */
+#endif /* _ASM_POWERPC_MMU_H_ */
diff --git a/include/asm-ppc64/mmu_context.h b/include/asm-powerpc/mmu_context.h
similarity index 91%
rename from include/asm-ppc64/mmu_context.h
rename to include/asm-powerpc/mmu_context.h
index 4f512e9..ea6798c 100644
--- a/include/asm-ppc64/mmu_context.h
+++ b/include/asm-powerpc/mmu_context.h
@@ -1,7 +1,10 @@
-#ifndef __PPC64_MMU_CONTEXT_H
-#define __PPC64_MMU_CONTEXT_H
+#ifndef __ASM_POWERPC_MMU_CONTEXT_H
+#define __ASM_POWERPC_MMU_CONTEXT_H
-#include <linux/config.h>
+#ifndef CONFIG_PPC64
+#include <asm-ppc/mmu_context.h>
+#else
+
#include <linux/kernel.h>
#include <linux/mm.h>
#include <asm/mmu.h>
@@ -82,4 +85,5 @@
local_irq_restore(flags);
}
-#endif /* __PPC64_MMU_CONTEXT_H */
+#endif /* CONFIG_PPC64 */
+#endif /* __ASM_POWERPC_MMU_CONTEXT_H */
diff --git a/include/asm-ppc64/mmzone.h b/include/asm-powerpc/mmzone.h
similarity index 100%
rename from include/asm-ppc64/mmzone.h
rename to include/asm-powerpc/mmzone.h
diff --git a/include/asm-ppc64/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
similarity index 96%
rename from include/asm-ppc64/pci-bridge.h
rename to include/asm-powerpc/pci-bridge.h
index cf04327..223ec7b 100644
--- a/include/asm-ppc64/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -1,8 +1,10 @@
-#ifdef __KERNEL__
-#ifndef _ASM_PCI_BRIDGE_H
-#define _ASM_PCI_BRIDGE_H
+#ifndef _ASM_POWERPC_PCI_BRIDGE_H
+#define _ASM_POWERPC_PCI_BRIDGE_H
-#include <linux/config.h>
+#ifndef CONFIG_PPC64
+#include <asm-ppc/pci-bridge.h>
+#else
+
#include <linux/pci.h>
#include <linux/list.h>
@@ -147,5 +149,5 @@
#define PCI_PROBE_NORMAL 0 /* Do normal PCI probing */
#define PCI_PROBE_DEVTREE 1 /* Instantiate from device tree */
+#endif /* CONFIG_PPC64 */
#endif
-#endif /* __KERNEL__ */
diff --git a/include/asm-ppc64/pci.h b/include/asm-powerpc/pci.h
similarity index 63%
rename from include/asm-ppc64/pci.h
rename to include/asm-powerpc/pci.h
index fafdf88..d5934a0 100644
--- a/include/asm-ppc64/pci.h
+++ b/include/asm-powerpc/pci.h
@@ -1,5 +1,5 @@
-#ifndef __PPC64_PCI_H
-#define __PPC64_PCI_H
+#ifndef __ASM_POWERPC_PCI_H
+#define __ASM_POWERPC_PCI_H
#ifdef __KERNEL__
/*
@@ -18,6 +18,7 @@
#include <asm/scatterlist.h>
#include <asm/io.h>
#include <asm/prom.h>
+#include <asm/pci-bridge.h>
#include <asm-generic/pci-dma-compat.h>
@@ -26,11 +27,21 @@
struct pci_dev;
-#ifdef CONFIG_PPC_ISERIES
+/* Values for the `which' argument to sys_pciconfig_iobase syscall. */
+#define IOBASE_BRIDGE_NUMBER 0
+#define IOBASE_MEMORY 1
+#define IOBASE_IO 2
+#define IOBASE_ISA_IO 3
+#define IOBASE_ISA_MEM 4
+
+/*
+ * Set this to 1 if you want the kernel to re-assign all PCI
+ * bus numbers
+ */
+extern int pci_assign_all_buses;
+#define pcibios_assign_all_busses() (pci_assign_all_buses)
+
#define pcibios_scan_all_fns(a, b) 0
-#else
-extern int pcibios_scan_all_fns(struct pci_bus *bus, int devfn);
-#endif
static inline void pcibios_set_master(struct pci_dev *dev)
{
@@ -50,6 +61,7 @@
return channel ? 15 : 14;
}
+#ifdef CONFIG_PPC64
#define HAVE_ARCH_PCI_MWI 1
static inline int pcibios_prep_mwi(struct pci_dev *dev)
{
@@ -64,12 +76,10 @@
return 0;
}
-extern unsigned int pcibios_assign_all_busses(void);
-
extern struct dma_mapping_ops pci_dma_ops;
/* For DAC DMA, we currently don't support it by default, but
- * we let the platform override this
+ * we let 64-bit platforms override this.
*/
static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask)
{
@@ -102,6 +112,35 @@
/* Decide whether to display the domain number in /proc */
extern int pci_proc_domain(struct pci_bus *bus);
+#else /* 32-bit */
+
+#ifdef CONFIG_PCI
+static inline void pci_dma_burst_advice(struct pci_dev *pdev,
+ enum pci_dma_burst_strategy *strat,
+ unsigned long *strategy_parameter)
+{
+ *strat = PCI_DMA_BURST_INFINITY;
+ *strategy_parameter = ~0UL;
+}
+#endif
+
+/*
+ * At present there are very few 32-bit PPC machines that can have
+ * memory above the 4GB point, and we don't support that.
+ */
+#define pci_dac_dma_supported(pci_dev, mask) (0)
+
+/* Return the index of the PCI controller for device PDEV. */
+#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index
+
+/* Set the name of the bus as it appears in /proc/bus/pci */
+static inline int pci_proc_domain(struct pci_bus *bus)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PPC64 */
+
struct vm_area_struct;
/* Map a range of PCI memory or I/O space for a device into user space */
int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
@@ -110,6 +149,7 @@
/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
#define HAVE_PCI_MMAP 1
+#ifdef CONFIG_PPC64
/* pci_unmap_{single,page} is not a nop, thus... */
#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \
dma_addr_t ADDR_NAME;
@@ -124,22 +164,40 @@
#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \
(((PTR)->LEN_NAME) = (VAL))
-/* The PCI address space does equal the physical memory
- * address space. The networking and block device layers use
+/* The PCI address space does not equal the physical memory address
+ * space (we have an IOMMU). The IDE and SCSI device layers use
* this boolean for bounce buffer decisions.
*/
#define PCI_DMA_BUS_IS_PHYS (0)
+
+#else /* 32-bit */
+
+/* The PCI address space does equal the physical memory
+ * address space (no IOMMU). The IDE and SCSI device layers use
+ * this boolean for bounce buffer decisions.
+ */
+#define PCI_DMA_BUS_IS_PHYS (1)
+
+/* pci_unmap_{page,single} is a nop so... */
+#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
+#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
+#define pci_unmap_addr(PTR, ADDR_NAME) (0)
+#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
+#define pci_unmap_len(PTR, LEN_NAME) (0)
+#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
+
+#endif /* CONFIG_PPC64 */
-extern void
-pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
+extern void pcibios_resource_to_bus(struct pci_dev *dev,
+ struct pci_bus_region *region,
struct resource *res);
-extern void
-pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
+extern void pcibios_bus_to_resource(struct pci_dev *dev,
+ struct resource *res,
struct pci_bus_region *region);
-static inline struct resource *
-pcibios_select_root(struct pci_dev *pdev, struct resource *res)
+static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
+ struct resource *res)
{
struct resource *root = NULL;
@@ -151,14 +209,12 @@
return root;
}
-extern int
-unmap_bus_range(struct pci_bus *bus);
+extern int unmap_bus_range(struct pci_bus *bus);
-extern int
-remap_bus_range(struct pci_bus *bus);
+extern int remap_bus_range(struct pci_bus *bus);
-extern void
-pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus);
+extern void pcibios_fixup_device_resources(struct pci_dev *dev,
+ struct pci_bus *bus);
extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
@@ -180,14 +236,12 @@
unsigned long size,
pgprot_t prot);
-#ifdef CONFIG_PPC_MULTIPLATFORM
+#if defined(CONFIG_PPC_MULTIPLATFORM) || defined(CONFIG_PPC32)
#define HAVE_ARCH_PCI_RESOURCE_TO_USER
extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
const struct resource *rsrc,
u64 *start, u64 *end);
-#endif /* CONFIG_PPC_MULTIPLATFORM */
-
+#endif /* CONFIG_PPC_MULTIPLATFORM || CONFIG_PPC32 */
#endif /* __KERNEL__ */
-
-#endif /* __PPC64_PCI_H */
+#endif /* __ASM_POWERPC_PCI_H */
diff --git a/include/asm-ppc64/pgalloc.h b/include/asm-powerpc/pgalloc.h
similarity index 95%
rename from include/asm-ppc64/pgalloc.h
rename to include/asm-powerpc/pgalloc.h
index dcf3622..bfc2113 100644
--- a/include/asm-ppc64/pgalloc.h
+++ b/include/asm-powerpc/pgalloc.h
@@ -1,5 +1,9 @@
-#ifndef _PPC64_PGALLOC_H
-#define _PPC64_PGALLOC_H
+#ifndef _ASM_POWERPC_PGALLOC_H
+#define _ASM_POWERPC_PGALLOC_H
+
+#ifndef CONFIG_PPC64
+#include <asm-ppc/pgalloc.h>
+#else
#include <linux/mm.h>
#include <linux/slab.h>
@@ -148,4 +152,5 @@
#define check_pgt_cache() do { } while (0)
-#endif /* _PPC64_PGALLOC_H */
+#endif /* CONFIG_PPC64 */
+#endif /* _ASM_POWERPC_PGALLOC_H */
diff --git a/include/asm-ppc64/pgtable-4k.h b/include/asm-powerpc/pgtable-4k.h
similarity index 100%
rename from include/asm-ppc64/pgtable-4k.h
rename to include/asm-powerpc/pgtable-4k.h
diff --git a/include/asm-ppc64/pgtable-64k.h b/include/asm-powerpc/pgtable-64k.h
similarity index 100%
rename from include/asm-ppc64/pgtable-64k.h
rename to include/asm-powerpc/pgtable-64k.h
diff --git a/include/asm-ppc64/pgtable.h b/include/asm-powerpc/pgtable.h
similarity index 97%
rename from include/asm-ppc64/pgtable.h
rename to include/asm-powerpc/pgtable.h
index a9783ba..0303f57 100644
--- a/include/asm-ppc64/pgtable.h
+++ b/include/asm-powerpc/pgtable.h
@@ -1,5 +1,9 @@
-#ifndef _PPC64_PGTABLE_H
-#define _PPC64_PGTABLE_H
+#ifndef _ASM_POWERPC_PGTABLE_H
+#define _ASM_POWERPC_PGTABLE_H
+
+#ifndef CONFIG_PPC64
+#include <asm-ppc/pgtable.h>
+#else
/*
* This file contains the functions and defines necessary to modify and use
@@ -47,6 +51,13 @@
#define VMALLOC_END (VMALLOC_START + VMALLOC_SIZE)
/*
+ * Define the address range of the imalloc VM area.
+ */
+#define PHBS_IO_BASE VMALLOC_END
+#define IMALLOC_BASE (PHBS_IO_BASE + 0x80000000ul) /* Reserve 2 gigs for PHBs */
+#define IMALLOC_END (VMALLOC_START + PGTABLE_RANGE)
+
+/*
* Common bits in a linux-style PTE. These match the bits in the
* (hardware-defined) PowerPC PTE as closely as possible. Additional
* bits may be defined in pgtable-*.h
@@ -69,7 +80,7 @@
#define _PAGE_WRENABLE (_PAGE_RW | _PAGE_DIRTY)
-/* __pgprot defined in asm-ppc64/page.h */
+/* __pgprot defined in asm-powerpc/page.h */
#define PAGE_NONE __pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
#define PAGE_SHARED __pgprot(_PAGE_BASE | _PAGE_RW | _PAGE_USER)
@@ -509,4 +520,5 @@
#endif /* __ASSEMBLY__ */
-#endif /* _PPC64_PGTABLE_H */
+#endif /* CONFIG_PPC64 */
+#endif /* _ASM_POWERPC_PGTABLE_H */
diff --git a/include/asm-powerpc/ppc-pci.h b/include/asm-powerpc/ppc-pci.h
index 2e36e5a..36cdc86 100644
--- a/include/asm-powerpc/ppc-pci.h
+++ b/include/asm-powerpc/ppc-pci.h
@@ -48,8 +48,6 @@
extern void pSeries_irq_bus_setup(struct pci_bus *bus);
extern unsigned long pci_probe_only;
-extern unsigned long pci_assign_all_buses;
-extern int pci_read_irq_line(struct pci_dev *pci_dev);
/* ---- EEH internal-use-only related routines ---- */
#ifdef CONFIG_EEH
diff --git a/include/asm-ppc64/spinlock.h b/include/asm-powerpc/spinlock.h
similarity index 80%
rename from include/asm-ppc64/spinlock.h
rename to include/asm-powerpc/spinlock.h
index 7d84fb5..caa4b14 100644
--- a/include/asm-ppc64/spinlock.h
+++ b/include/asm-powerpc/spinlock.h
@@ -18,31 +18,41 @@
*
* (the type definitions are in asm/spinlock_types.h)
*/
-#include <linux/config.h>
+#ifdef CONFIG_PPC64
#include <asm/paca.h>
#include <asm/hvcall.h>
#include <asm/iseries/hv_call.h>
+#endif
+#include <asm/asm-compat.h>
+#include <asm/synch.h>
#define __raw_spin_is_locked(x) ((x)->slock != 0)
+#ifdef CONFIG_PPC64
+/* use 0x800000yy when locked, where yy == CPU number */
+#define LOCK_TOKEN (*(u32 *)(&get_paca()->lock_token))
+#else
+#define LOCK_TOKEN 1
+#endif
+
/*
* This returns the old value in the lock, so we succeeded
* in getting the lock if the return value is 0.
*/
static __inline__ unsigned long __spin_trylock(raw_spinlock_t *lock)
{
- unsigned long tmp, tmp2;
+ unsigned long tmp, token;
+ token = LOCK_TOKEN;
__asm__ __volatile__(
-" lwz %1,%3(13) # __spin_trylock\n\
-1: lwarx %0,0,%2\n\
+"1: lwarx %0,0,%2 # __spin_trylock\n\
cmpwi 0,%0,0\n\
bne- 2f\n\
stwcx. %1,0,%2\n\
bne- 1b\n\
isync\n\
-2:" : "=&r" (tmp), "=&r" (tmp2)
- : "r" (&lock->slock), "i" (offsetof(struct paca_struct, lock_token))
+2:" : "=&r" (tmp)
+ : "r" (token), "r" (&lock->slock)
: "cr0", "memory");
return tmp;
@@ -113,11 +123,17 @@
static __inline__ void __raw_spin_unlock(raw_spinlock_t *lock)
{
- __asm__ __volatile__("lwsync # __raw_spin_unlock": : :"memory");
+ __asm__ __volatile__(SYNC_ON_SMP" # __raw_spin_unlock"
+ : : :"memory");
lock->slock = 0;
}
+#ifdef CONFIG_PPC64
extern void __raw_spin_unlock_wait(raw_spinlock_t *lock);
+#else
+#define __raw_spin_unlock_wait(lock) \
+ do { while (__raw_spin_is_locked(lock)) cpu_relax(); } while (0)
+#endif
/*
* Read-write spinlocks, allowing multiple readers
@@ -133,6 +149,14 @@
#define __raw_read_can_lock(rw) ((rw)->lock >= 0)
#define __raw_write_can_lock(rw) (!(rw)->lock)
+#ifdef CONFIG_PPC64
+#define __DO_SIGN_EXTEND "extsw %0,%0\n"
+#define WRLOCK_TOKEN LOCK_TOKEN /* it's negative */
+#else
+#define __DO_SIGN_EXTEND
+#define WRLOCK_TOKEN (-1)
+#endif
+
/*
* This returns the old value in the lock + 1,
* so we got a read lock if the return value is > 0.
@@ -142,11 +166,12 @@
long tmp;
__asm__ __volatile__(
-"1: lwarx %0,0,%1 # read_trylock\n\
- extsw %0,%0\n\
- addic. %0,%0,1\n\
- ble- 2f\n\
- stwcx. %0,0,%1\n\
+"1: lwarx %0,0,%1 # read_trylock\n"
+ __DO_SIGN_EXTEND
+" addic. %0,%0,1\n\
+ ble- 2f\n"
+ PPC405_ERR77(0,%1)
+" stwcx. %0,0,%1\n\
bne- 1b\n\
isync\n\
2:" : "=&r" (tmp)
@@ -162,18 +187,19 @@
*/
static __inline__ long __write_trylock(raw_rwlock_t *rw)
{
- long tmp, tmp2;
+ long tmp, token;
+ token = WRLOCK_TOKEN;
__asm__ __volatile__(
-" lwz %1,%3(13) # write_trylock\n\
-1: lwarx %0,0,%2\n\
+"1: lwarx %0,0,%2 # write_trylock\n\
cmpwi 0,%0,0\n\
- bne- 2f\n\
- stwcx. %1,0,%2\n\
+ bne- 2f\n"
+ PPC405_ERR77(0,%1)
+" stwcx. %1,0,%2\n\
bne- 1b\n\
isync\n\
-2:" : "=&r" (tmp), "=&r" (tmp2)
- : "r" (&rw->lock), "i" (offsetof(struct paca_struct, lock_token))
+2:" : "=&r" (tmp)
+ : "r" (token), "r" (&rw->lock)
: "cr0", "memory");
return tmp;
@@ -224,8 +250,9 @@
__asm__ __volatile__(
"eieio # read_unlock\n\
1: lwarx %0,0,%1\n\
- addic %0,%0,-1\n\
- stwcx. %0,0,%1\n\
+ addic %0,%0,-1\n"
+ PPC405_ERR77(0,%1)
+" stwcx. %0,0,%1\n\
bne- 1b"
: "=&r"(tmp)
: "r"(&rw->lock)
@@ -234,7 +261,8 @@
static __inline__ void __raw_write_unlock(raw_rwlock_t *rw)
{
- __asm__ __volatile__("lwsync # write_unlock": : :"memory");
+ __asm__ __volatile__(SYNC_ON_SMP" # write_unlock"
+ : : :"memory");
rw->lock = 0;
}
diff --git a/include/asm-ppc/dma-mapping.h b/include/asm-ppc/dma-mapping.h
deleted file mode 100644
index 6e96351..0000000
--- a/include/asm-ppc/dma-mapping.h
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * This is based on both include/asm-sh/dma-mapping.h and
- * include/asm-ppc/pci.h
- */
-#ifndef __ASM_PPC_DMA_MAPPING_H
-#define __ASM_PPC_DMA_MAPPING_H
-
-#include <linux/config.h>
-/* need struct page definitions */
-#include <linux/mm.h>
-#include <asm/scatterlist.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_NOT_COHERENT_CACHE
-/*
- * DMA-consistent mapping functions for PowerPCs that don't support
- * cache snooping. These allocate/free a region of uncached mapped
- * memory space for use with DMA devices. Alternatively, you could
- * allocate the space "normally" and use the cache management functions
- * to ensure it is consistent.
- */
-extern void *__dma_alloc_coherent(size_t size, dma_addr_t *handle, gfp_t gfp);
-extern void __dma_free_coherent(size_t size, void *vaddr);
-extern void __dma_sync(void *vaddr, size_t size, int direction);
-extern void __dma_sync_page(struct page *page, unsigned long offset,
- size_t size, int direction);
-#define dma_cache_inv(_start,_size) \
- invalidate_dcache_range(_start, (_start + _size))
-#define dma_cache_wback(_start,_size) \
- clean_dcache_range(_start, (_start + _size))
-#define dma_cache_wback_inv(_start,_size) \
- flush_dcache_range(_start, (_start + _size))
-
-#else /* ! CONFIG_NOT_COHERENT_CACHE */
-/*
- * Cache coherent cores.
- */
-
-#define dma_cache_inv(_start,_size) do { } while (0)
-#define dma_cache_wback(_start,_size) do { } while (0)
-#define dma_cache_wback_inv(_start,_size) do { } while (0)
-
-#define __dma_alloc_coherent(gfp, size, handle) NULL
-#define __dma_free_coherent(size, addr) do { } while (0)
-#define __dma_sync(addr, size, rw) do { } while (0)
-#define __dma_sync_page(pg, off, sz, rw) do { } while (0)
-
-#endif /* ! CONFIG_NOT_COHERENT_CACHE */
-
-#define dma_supported(dev, mask) (1)
-
-static inline int dma_set_mask(struct device *dev, u64 dma_mask)
-{
- if (!dev->dma_mask || !dma_supported(dev, mask))
- return -EIO;
-
- *dev->dma_mask = dma_mask;
-
- return 0;
-}
-
-static inline void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t * dma_handle,
- gfp_t gfp)
-{
-#ifdef CONFIG_NOT_COHERENT_CACHE
- return __dma_alloc_coherent(size, dma_handle, gfp);
-#else
- void *ret;
- /* ignore region specifiers */
- gfp &= ~(__GFP_DMA | __GFP_HIGHMEM);
-
- if (dev == NULL || dev->coherent_dma_mask < 0xffffffff)
- gfp |= GFP_DMA;
-
- ret = (void *)__get_free_pages(gfp, get_order(size));
-
- if (ret != NULL) {
- memset(ret, 0, size);
- *dma_handle = virt_to_bus(ret);
- }
-
- return ret;
-#endif
-}
-
-static inline void
-dma_free_coherent(struct device *dev, size_t size, void *vaddr,
- dma_addr_t dma_handle)
-{
-#ifdef CONFIG_NOT_COHERENT_CACHE
- __dma_free_coherent(size, vaddr);
-#else
- free_pages((unsigned long)vaddr, get_order(size));
-#endif
-}
-
-static inline dma_addr_t
-dma_map_single(struct device *dev, void *ptr, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
-
- __dma_sync(ptr, size, direction);
-
- return virt_to_bus(ptr);
-}
-
-/* We do nothing. */
-#define dma_unmap_single(dev, addr, size, dir) do { } while (0)
-
-static inline dma_addr_t
-dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
-
- __dma_sync_page(page, offset, size, direction);
-
- return page_to_bus(page) + offset;
-}
-
-/* We do nothing. */
-#define dma_unmap_page(dev, handle, size, dir) do { } while (0)
-
-static inline int
-dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- int i;
-
- BUG_ON(direction == DMA_NONE);
-
- for (i = 0; i < nents; i++, sg++) {
- BUG_ON(!sg->page);
- __dma_sync_page(sg->page, sg->offset, sg->length, direction);
- sg->dma_address = page_to_bus(sg->page) + sg->offset;
- }
-
- return nents;
-}
-
-/* We don't do anything here. */
-#define dma_unmap_sg(dev, sg, nents, dir) do { } while (0)
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
-
- __dma_sync(bus_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
-
- __dma_sync(bus_to_virt(dma_handle), size, direction);
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- int i;
-
- BUG_ON(direction == DMA_NONE);
-
- for (i = 0; i < nents; i++, sg++)
- __dma_sync_page(sg->page, sg->offset, sg->length, direction);
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
-{
- int i;
-
- BUG_ON(direction == DMA_NONE);
-
- for (i = 0; i < nents; i++, sg++)
- __dma_sync_page(sg->page, sg->offset, sg->length, direction);
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#ifdef CONFIG_NOT_COHERENT_CACHE
-#define dma_is_consistent(d) (0)
-#else
-#define dma_is_consistent(d) (1)
-#endif
-
-static inline int dma_get_cache_alignment(void)
-{
- /*
- * Each processor family will define its own L1_CACHE_SHIFT,
- * L1_CACHE_BYTES wraps to this, so this is always safe.
- */
- return L1_CACHE_BYTES;
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- /* just sync everything for now */
- dma_sync_single_for_cpu(dev, dma_handle, offset + size, direction);
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- /* just sync everything for now */
- dma_sync_single_for_device(dev, dma_handle, offset + size, direction);
-}
-
-static inline void dma_cache_sync(void *vaddr, size_t size,
- enum dma_data_direction direction)
-{
- __dma_sync(vaddr, size, (int)direction);
-}
-
-static inline int dma_mapping_error(dma_addr_t dma_addr)
-{
- return 0;
-}
-
-#endif /* __ASM_PPC_DMA_MAPPING_H */
diff --git a/include/asm-ppc/io.h b/include/asm-ppc/io.h
index 2bfdf9c..84ac6e2 100644
--- a/include/asm-ppc/io.h
+++ b/include/asm-ppc/io.h
@@ -545,6 +545,23 @@
#include <asm/mpc8260_pci9.h>
#endif
+#ifdef CONFIG_NOT_COHERENT_CACHE
+
+#define dma_cache_inv(_start,_size) \
+ invalidate_dcache_range(_start, (_start + _size))
+#define dma_cache_wback(_start,_size) \
+ clean_dcache_range(_start, (_start + _size))
+#define dma_cache_wback_inv(_start,_size) \
+ flush_dcache_range(_start, (_start + _size))
+
+#else
+
+#define dma_cache_inv(_start,_size) do { } while (0)
+#define dma_cache_wback(_start,_size) do { } while (0)
+#define dma_cache_wback_inv(_start,_size) do { } while (0)
+
+#endif
+
/*
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
diff --git a/include/asm-ppc64/dma-mapping.h b/include/asm-ppc64/dma-mapping.h
deleted file mode 100644
index fb68fa2..0000000
--- a/include/asm-ppc64/dma-mapping.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* Copyright (C) 2004 IBM
- *
- * Implements the generic device dma API for ppc64. Handles
- * the pci and vio busses
- */
-
-#ifndef _ASM_DMA_MAPPING_H
-#define _ASM_DMA_MAPPING_H
-
-#include <linux/types.h>
-#include <linux/cache.h>
-/* need struct page definitions */
-#include <linux/mm.h>
-#include <asm/scatterlist.h>
-#include <asm/bug.h>
-
-#define DMA_ERROR_CODE (~(dma_addr_t)0x0)
-
-extern int dma_supported(struct device *dev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 dma_mask);
-extern void *dma_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag);
-extern void dma_free_coherent(struct device *dev, size_t size, void *cpu_addr,
- dma_addr_t dma_handle);
-extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
- size_t size, enum dma_data_direction direction);
-extern void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction direction);
-extern dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size,
- enum dma_data_direction direction);
-extern void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
- size_t size, enum dma_data_direction direction);
-extern int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction);
-extern void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
- int nhwentries, enum dma_data_direction direction);
-
-static inline void
-dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline void
-dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline void
-dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline void
-dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline int dma_mapping_error(dma_addr_t dma_addr)
-{
- return (dma_addr == DMA_ERROR_CODE);
-}
-
-/* Now for the API extensions over the pci_ one */
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-#define dma_is_consistent(d) (1)
-
-static inline int
-dma_get_cache_alignment(void)
-{
- /* no easy way to get cache size on all processors, so return
- * the maximum possible, to be safe */
- return (1 << L1_CACHE_SHIFT_MAX);
-}
-
-static inline void
-dma_sync_single_range_for_cpu(struct device *dev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline void
-dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
- unsigned long offset, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-static inline void
-dma_cache_sync(void *vaddr, size_t size,
- enum dma_data_direction direction)
-{
- BUG_ON(direction == DMA_NONE);
- /* nothing to do */
-}
-
-/*
- * DMA operations are abstracted for G5 vs. i/pSeries, PCI vs. VIO
- */
-struct dma_mapping_ops {
- void * (*alloc_coherent)(struct device *dev, size_t size,
- dma_addr_t *dma_handle, gfp_t flag);
- void (*free_coherent)(struct device *dev, size_t size,
- void *vaddr, dma_addr_t dma_handle);
- dma_addr_t (*map_single)(struct device *dev, void *ptr,
- size_t size, enum dma_data_direction direction);
- void (*unmap_single)(struct device *dev, dma_addr_t dma_addr,
- size_t size, enum dma_data_direction direction);
- int (*map_sg)(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction);
- void (*unmap_sg)(struct device *dev, struct scatterlist *sg,
- int nents, enum dma_data_direction direction);
- int (*dma_supported)(struct device *dev, u64 mask);
- int (*dac_dma_supported)(struct device *dev, u64 mask);
-};
-
-#endif /* _ASM_DMA_MAPPING_H */
diff --git a/include/asm-ppc64/imalloc.h b/include/asm-ppc64/imalloc.h
deleted file mode 100644
index 42adf70..0000000
--- a/include/asm-ppc64/imalloc.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef _PPC64_IMALLOC_H
-#define _PPC64_IMALLOC_H
-
-/*
- * Define the address range of the imalloc VM area.
- */
-#define PHBS_IO_BASE VMALLOC_END
-#define IMALLOC_BASE (PHBS_IO_BASE + 0x80000000ul) /* Reserve 2 gigs for PHBs */
-#define IMALLOC_END (VMALLOC_START + PGTABLE_RANGE)
-
-
-/* imalloc region types */
-#define IM_REGION_UNUSED 0x1
-#define IM_REGION_SUBSET 0x2
-#define IM_REGION_EXISTS 0x4
-#define IM_REGION_OVERLAP 0x8
-#define IM_REGION_SUPERSET 0x10
-
-extern struct vm_struct * im_get_free_area(unsigned long size);
-extern struct vm_struct * im_get_area(unsigned long v_addr, unsigned long size,
- int region_type);
-extern void im_free(void *addr);
-
-extern unsigned long ioremap_bot;
-
-#endif /* _PPC64_IMALLOC_H */
