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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-19 07:50:07 -1000
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-19 07:50:07 -1000
commitc4222e4635c6d6a689bf69e982f19c9d1ba261e1 (patch)
tree2e5954d33ff287da74029815355c353defd3abd0 /arch/sparc/mm
parente99cfa2d0634881b8a41d56c48b5956b9a3ba162 (diff)
parent311b8935ad4e13bac5880ae3f0c269b0c253d25f (diff)
downloadlinux-c4222e4635c6d6a689bf69e982f19c9d1ba261e1.tar.gz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc fixes from David Miller: "Sparc sparse fixes from Sam Ravnborg" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (67 commits) sparc64: fix sparse warnings in int_64.c sparc64: fix sparse warning in ftrace.c sparc64: fix sparse warning in kprobes.c sparc64: fix sparse warning in kgdb_64.c sparc64: fix sparse warnings in compat_audit.c sparc64: fix sparse warnings in init_64.c sparc64: fix sparse warnings in aes_glue.c sparc: fix sparse warnings in smp_32.c + smp_64.c sparc64: fix sparse warnings in perf_event.c sparc64: fix sparse warnings in kprobes.c sparc64: fix sparse warning in tsb.c sparc64: clean up compat_sigset_t.seta handling sparc64: fix sparse "Should it be static?" warnings in signal32.c sparc64: fix sparse warnings in sys_sparc32.c sparc64: fix sparse warning in pci.c sparc64: fix sparse warnings in smp_64.c sparc64: fix sparse warning in prom_64.c sparc64: fix sparse warning in btext.c sparc64: fix sparse warnings in sys_sparc_64.c + unaligned_64.c sparc64: fix sparse warning in process_64.c ... Conflicts: arch/sparc/include/asm/pgtable_64.h
Diffstat (limited to 'arch/sparc/mm')
-rw-r--r--arch/sparc/mm/fault_32.c9
-rw-r--r--arch/sparc/mm/fault_64.c4
-rw-r--r--arch/sparc/mm/init_32.c7
-rw-r--r--arch/sparc/mm/init_64.c9
-rw-r--r--arch/sparc/mm/init_64.h4
-rw-r--r--arch/sparc/mm/io-unit.c21
-rw-r--r--arch/sparc/mm/iommu.c25
-rw-r--r--arch/sparc/mm/leon_mm.c4
-rw-r--r--arch/sparc/mm/mm_32.h24
-rw-r--r--arch/sparc/mm/srmmu.c13
-rw-r--r--arch/sparc/mm/srmmu.h4
-rw-r--r--arch/sparc/mm/tsb.c1
12 files changed, 74 insertions, 51 deletions
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index 59dbd4645725..908e8c17c902 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -26,14 +26,14 @@
#include <asm/pgtable.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
+#include <asm/setup.h>
#include <asm/smp.h>
#include <asm/traps.h>
#include <asm/uaccess.h>
-int show_unhandled_signals = 1;
+#include "mm_32.h"
-static void unhandled_fault(unsigned long, struct task_struct *,
- struct pt_regs *) __attribute__ ((noreturn));
+int show_unhandled_signals = 1;
static void __noreturn unhandled_fault(unsigned long address,
struct task_struct *tsk,
@@ -141,9 +141,6 @@ static void __do_fault_siginfo(int code, int sig, struct pt_regs *regs,
force_sig_info (sig, &info, current);
}
-extern unsigned long safe_compute_effective_address(struct pt_regs *,
- unsigned int);
-
static unsigned long compute_si_addr(struct pt_regs *regs, int text_fault)
{
unsigned int insn;
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 4ced3fc66130..587cd0565128 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -32,6 +32,7 @@
#include <asm/lsu.h>
#include <asm/sections.h>
#include <asm/mmu_context.h>
+#include <asm/setup.h>
int show_unhandled_signals = 1;
@@ -196,9 +197,6 @@ static void do_fault_siginfo(int code, int sig, struct pt_regs *regs,
force_sig_info(sig, &info, current);
}
-extern int handle_ldf_stq(u32, struct pt_regs *);
-extern int handle_ld_nf(u32, struct pt_regs *);
-
static unsigned int get_fault_insn(struct pt_regs *regs, unsigned int insn)
{
if (!insn) {
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index db6987082805..eb8287155279 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -31,10 +31,13 @@
#include <asm/pgtable.h>
#include <asm/vaddrs.h>
#include <asm/pgalloc.h> /* bug in asm-generic/tlb.h: check_pgt_cache */
+#include <asm/setup.h>
#include <asm/tlb.h>
#include <asm/prom.h>
#include <asm/leon.h>
+#include "mm_32.h"
+
unsigned long *sparc_valid_addr_bitmap;
EXPORT_SYMBOL(sparc_valid_addr_bitmap);
@@ -63,7 +66,6 @@ void show_mem(unsigned int filter)
}
-extern unsigned long cmdline_memory_size;
unsigned long last_valid_pfn;
unsigned long calc_highpages(void)
@@ -246,9 +248,6 @@ unsigned long __init bootmem_init(unsigned long *pages_avail)
* init routine based upon the Sun model type on the Sparc.
*
*/
-extern void srmmu_paging_init(void);
-extern void device_scan(void);
-
void __init paging_init(void)
{
srmmu_paging_init();
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ed3c969a5f4c..16b58ff11e65 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -47,6 +47,7 @@
#include <asm/prom.h>
#include <asm/mdesc.h>
#include <asm/cpudata.h>
+#include <asm/setup.h>
#include <asm/irq.h>
#include "init_64.h"
@@ -794,11 +795,11 @@ struct node_mem_mask {
static struct node_mem_mask node_masks[MAX_NUMNODES];
static int num_node_masks;
+#ifdef CONFIG_NEED_MULTIPLE_NODES
+
int numa_cpu_lookup_table[NR_CPUS];
cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-
struct mdesc_mblock {
u64 base;
u64 size;
@@ -887,17 +888,21 @@ static void __init allocate_node_data(int nid)
static void init_node_masks_nonnuma(void)
{
+#ifdef CONFIG_NEED_MULTIPLE_NODES
int i;
+#endif
numadbg("Initializing tables for non-numa.\n");
node_masks[0].mask = node_masks[0].val = 0;
num_node_masks = 1;
+#ifdef CONFIG_NEED_MULTIPLE_NODES
for (i = 0; i < NR_CPUS; i++)
numa_cpu_lookup_table[i] = 0;
cpumask_setall(&numa_cpumask_lookup_table[0]);
+#endif
}
#ifdef CONFIG_NEED_MULTIPLE_NODES
diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h
index 5d3782deb403..0668b364f44d 100644
--- a/arch/sparc/mm/init_64.h
+++ b/arch/sparc/mm/init_64.h
@@ -21,7 +21,7 @@ extern unsigned int sparc64_highest_unlocked_tlb_ent;
extern unsigned long sparc64_kern_pri_context;
extern unsigned long sparc64_kern_pri_nuc_bits;
extern unsigned long sparc64_kern_sec_context;
-extern void mmu_info(struct seq_file *m);
+void mmu_info(struct seq_file *m);
struct linux_prom_translation {
unsigned long virt;
@@ -36,7 +36,7 @@ extern unsigned int prom_trans_ents;
/* Exported for SMP bootup purposes. */
extern unsigned long kern_locked_tte_data;
-extern void prom_world(int enter);
+void prom_world(int enter);
#ifdef CONFIG_SPARSEMEM_VMEMMAP
#define VMEMMAP_CHUNK_SHIFT 22
diff --git a/arch/sparc/mm/io-unit.c b/arch/sparc/mm/io-unit.c
index eb99862e9654..f311bf219016 100644
--- a/arch/sparc/mm/io-unit.c
+++ b/arch/sparc/mm/io-unit.c
@@ -25,6 +25,8 @@
#include <asm/dma.h>
#include <asm/oplib.h>
+#include "mm_32.h"
+
/* #define IOUNIT_DEBUG */
#ifdef IOUNIT_DEBUG
#define IOD(x) printk(x)
@@ -38,7 +40,8 @@
static void __init iounit_iommu_init(struct platform_device *op)
{
struct iounit_struct *iounit;
- iopte_t *xpt, *xptend;
+ iopte_t __iomem *xpt;
+ iopte_t __iomem *xptend;
iounit = kzalloc(sizeof(struct iounit_struct), GFP_ATOMIC);
if (!iounit) {
@@ -62,10 +65,10 @@ static void __init iounit_iommu_init(struct platform_device *op)
op->dev.archdata.iommu = iounit;
iounit->page_table = xpt;
spin_lock_init(&iounit->lock);
-
- for (xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t);
- xpt < xptend;)
- iopte_val(*xpt++) = 0;
+
+ xptend = iounit->page_table + (16 * PAGE_SIZE) / sizeof(iopte_t);
+ for (; xpt < xptend; xpt++)
+ sbus_writel(0, xpt);
}
static int __init iounit_init(void)
@@ -130,7 +133,7 @@ nexti: scan = find_next_zero_bit(iounit->bmap, limit, scan);
vaddr = IOUNIT_DMA_BASE + (scan << PAGE_SHIFT) + (vaddr & ~PAGE_MASK);
for (k = 0; k < npages; k++, iopte = __iopte(iopte_val(iopte) + 0x100), scan++) {
set_bit(scan, iounit->bmap);
- iounit->page_table[scan] = iopte;
+ sbus_writel(iopte, &iounit->page_table[scan]);
}
IOD(("%08lx\n", vaddr));
return vaddr;
@@ -202,7 +205,7 @@ static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned lon
struct iounit_struct *iounit = dev->archdata.iommu;
unsigned long page, end;
pgprot_t dvma_prot;
- iopte_t *iopte;
+ iopte_t __iomem *iopte;
*pba = addr;
@@ -224,8 +227,8 @@ static int iounit_map_dma_area(struct device *dev, dma_addr_t *pba, unsigned lon
i = ((addr - IOUNIT_DMA_BASE) >> PAGE_SHIFT);
- iopte = (iopte_t *)(iounit->page_table + i);
- *iopte = MKIOPTE(__pa(page));
+ iopte = iounit->page_table + i;
+ sbus_writel(MKIOPTE(__pa(page)), iopte);
}
addr += PAGE_SIZE;
va += PAGE_SIZE;
diff --git a/arch/sparc/mm/iommu.c b/arch/sparc/mm/iommu.c
index 28f96f27c768..491511d37e37 100644
--- a/arch/sparc/mm/iommu.c
+++ b/arch/sparc/mm/iommu.c
@@ -27,6 +27,8 @@
#include <asm/iommu.h>
#include <asm/dma.h>
+#include "mm_32.h"
+
/*
* This can be sized dynamically, but we will do this
* only when we have a guidance about actual I/O pressures.
@@ -37,9 +39,6 @@
#define IOMMU_NPTES (IOMMU_WINSIZE/PAGE_SIZE) /* 64K PTEs, 256KB */
#define IOMMU_ORDER 6 /* 4096 * (1<<6) */
-/* srmmu.c */
-extern int viking_mxcc_present;
-extern int flush_page_for_dma_global;
static int viking_flush;
/* viking.S */
extern void viking_flush_page(unsigned long page);
@@ -59,6 +58,8 @@ static void __init sbus_iommu_init(struct platform_device *op)
struct iommu_struct *iommu;
unsigned int impl, vers;
unsigned long *bitmap;
+ unsigned long control;
+ unsigned long base;
unsigned long tmp;
iommu = kmalloc(sizeof(struct iommu_struct), GFP_KERNEL);
@@ -73,12 +74,14 @@ static void __init sbus_iommu_init(struct platform_device *op)
prom_printf("Cannot map IOMMU registers\n");
prom_halt();
}
- impl = (iommu->regs->control & IOMMU_CTRL_IMPL) >> 28;
- vers = (iommu->regs->control & IOMMU_CTRL_VERS) >> 24;
- tmp = iommu->regs->control;
- tmp &= ~(IOMMU_CTRL_RNGE);
- tmp |= (IOMMU_RNGE_256MB | IOMMU_CTRL_ENAB);
- iommu->regs->control = tmp;
+
+ control = sbus_readl(&iommu->regs->control);
+ impl = (control & IOMMU_CTRL_IMPL) >> 28;
+ vers = (control & IOMMU_CTRL_VERS) >> 24;
+ control &= ~(IOMMU_CTRL_RNGE);
+ control |= (IOMMU_RNGE_256MB | IOMMU_CTRL_ENAB);
+ sbus_writel(control, &iommu->regs->control);
+
iommu_invalidate(iommu->regs);
iommu->start = IOMMU_START;
iommu->end = 0xffffffff;
@@ -100,7 +103,9 @@ static void __init sbus_iommu_init(struct platform_device *op)
memset(iommu->page_table, 0, IOMMU_NPTES*sizeof(iopte_t));
flush_cache_all();
flush_tlb_all();
- iommu->regs->base = __pa((unsigned long) iommu->page_table) >> 4;
+
+ base = __pa((unsigned long)iommu->page_table) >> 4;
+ sbus_writel(base, &iommu->regs->base);
iommu_invalidate(iommu->regs);
bitmap = kmalloc(IOMMU_NPTES>>3, GFP_KERNEL);
diff --git a/arch/sparc/mm/leon_mm.c b/arch/sparc/mm/leon_mm.c
index 5bed085a2c17..3b17b6f7895a 100644
--- a/arch/sparc/mm/leon_mm.c
+++ b/arch/sparc/mm/leon_mm.c
@@ -15,10 +15,10 @@
#include <asm/leon.h>
#include <asm/tlbflush.h>
-#include "srmmu.h"
+#include "mm_32.h"
int leon_flush_during_switch = 1;
-int srmmu_swprobe_trace;
+static int srmmu_swprobe_trace;
static inline unsigned long leon_get_ctable_ptr(void)
{
diff --git a/arch/sparc/mm/mm_32.h b/arch/sparc/mm/mm_32.h
new file mode 100644
index 000000000000..a6c27ca9a721
--- /dev/null
+++ b/arch/sparc/mm/mm_32.h
@@ -0,0 +1,24 @@
+/* fault_32.c - visible as they are called from assembler */
+asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc,
+ unsigned long address);
+asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
+ unsigned long address);
+
+void window_overflow_fault(void);
+void window_underflow_fault(unsigned long sp);
+void window_ret_fault(struct pt_regs *regs);
+
+/* srmmu.c */
+extern char *srmmu_name;
+extern int viking_mxcc_present;
+extern int flush_page_for_dma_global;
+
+extern void (*poke_srmmu)(void);
+
+void __init srmmu_paging_init(void);
+
+/* iommu.c */
+void ld_mmu_iommu(void);
+
+/* io-unit.c */
+void ld_mmu_iounit(void);
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index cfbe53c17b0d..be65f035d18a 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -49,7 +49,7 @@
#include <asm/mxcc.h>
#include <asm/ross.h>
-#include "srmmu.h"
+#include "mm_32.h"
enum mbus_module srmmu_modtype;
static unsigned int hwbug_bitmask;
@@ -100,7 +100,6 @@ static unsigned long srmmu_nocache_end;
#define SRMMU_NOCACHE_ALIGN_MAX (sizeof(ctxd_t)*SRMMU_MAX_CONTEXTS)
void *srmmu_nocache_pool;
-void *srmmu_nocache_bitmap;
static struct bit_map srmmu_nocache_map;
static inline int srmmu_pmd_none(pmd_t pmd)
@@ -173,7 +172,7 @@ static void *__srmmu_get_nocache(int size, int align)
printk(KERN_ERR "srmmu: out of nocache %d: %d/%d\n",
size, (int) srmmu_nocache_size,
srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
- return 0;
+ return NULL;
}
addr = SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT);
@@ -269,6 +268,7 @@ static void __init srmmu_nocache_calcsize(void)
static void __init srmmu_nocache_init(void)
{
+ void *srmmu_nocache_bitmap;
unsigned int bitmap_bits;
pgd_t *pgd;
pmd_t *pmd;
@@ -728,7 +728,7 @@ static inline unsigned long srmmu_probe(unsigned long vaddr)
"=r" (retval) :
"r" (vaddr | 0x400), "i" (ASI_M_FLUSH_PROBE));
} else {
- retval = leon_swprobe(vaddr, 0);
+ retval = leon_swprobe(vaddr, NULL);
}
return retval;
}
@@ -865,8 +865,6 @@ static void __init map_kernel(void)
void (*poke_srmmu)(void) = NULL;
-extern unsigned long bootmem_init(unsigned long *pages_avail);
-
void __init srmmu_paging_init(void)
{
int i;
@@ -1771,9 +1769,6 @@ static struct sparc32_cachetlb_ops smp_cachetlb_ops = {
/* Load up routines and constants for sun4m and sun4d mmu */
void __init load_mmu(void)
{
- extern void ld_mmu_iommu(void);
- extern void ld_mmu_iounit(void);
-
/* Functions */
get_srmmu_type();
diff --git a/arch/sparc/mm/srmmu.h b/arch/sparc/mm/srmmu.h
deleted file mode 100644
index 5703274ccf89..000000000000
--- a/arch/sparc/mm/srmmu.h
+++ /dev/null
@@ -1,4 +0,0 @@
-/* srmmu.c */
-extern char *srmmu_name;
-
-extern void (*poke_srmmu)(void);
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index fe19b81acc09..a06576683c38 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -9,6 +9,7 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/mmu_context.h>
+#include <asm/setup.h>
#include <asm/tsb.h>
#include <asm/tlb.h>
#include <asm/oplib.h>