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-rw-r--r--arch/mips/mm/c-octeon.c16
-rw-r--r--arch/mips/mm/c-r4k.c21
-rw-r--r--arch/mips/mm/dma-default.c163
-rw-r--r--arch/mips/mm/fault.c11
-rw-r--r--arch/mips/mm/highmem.c51
-rw-r--r--arch/mips/mm/sc-mips.c38
-rw-r--r--arch/mips/mm/tlbex.c11
-rw-r--r--arch/mips/mm/uasm.c20
8 files changed, 175 insertions, 156 deletions
diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c
index 0f9c488044d..16c4d256b76 100644
--- a/arch/mips/mm/c-octeon.c
+++ b/arch/mips/mm/c-octeon.c
@@ -181,10 +181,10 @@ static void __cpuinit probe_octeon(void)
unsigned int config1;
struct cpuinfo_mips *c = &current_cpu_data;
+ config1 = read_c0_config1();
switch (c->cputype) {
case CPU_CAVIUM_OCTEON:
case CPU_CAVIUM_OCTEON_PLUS:
- config1 = read_c0_config1();
c->icache.linesz = 2 << ((config1 >> 19) & 7);
c->icache.sets = 64 << ((config1 >> 22) & 7);
c->icache.ways = 1 + ((config1 >> 16) & 7);
@@ -204,6 +204,20 @@ static void __cpuinit probe_octeon(void)
c->options |= MIPS_CPU_PREFETCH;
break;
+ case CPU_CAVIUM_OCTEON2:
+ c->icache.linesz = 2 << ((config1 >> 19) & 7);
+ c->icache.sets = 8;
+ c->icache.ways = 37;
+ c->icache.flags |= MIPS_CACHE_VTAG;
+ icache_size = c->icache.sets * c->icache.ways * c->icache.linesz;
+
+ c->dcache.linesz = 128;
+ c->dcache.ways = 32;
+ c->dcache.sets = 8;
+ dcache_size = c->dcache.sets * c->dcache.ways * c->dcache.linesz;
+ c->options |= MIPS_CPU_PREFETCH;
+ break;
+
default:
panic("Unsupported Cavium Networks CPU type\n");
break;
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 6721ee2b1e8..b4923a75cb4 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -42,14 +42,14 @@
* o collapses to normal function call on UP kernels
* o collapses to normal function call on systems with a single shared
* primary cache.
+ * o doesn't disable interrupts on the local CPU
*/
-static inline void r4k_on_each_cpu(void (*func) (void *info), void *info,
- int wait)
+static inline void r4k_on_each_cpu(void (*func) (void *info), void *info)
{
preempt_disable();
#if !defined(CONFIG_MIPS_MT_SMP) && !defined(CONFIG_MIPS_MT_SMTC)
- smp_call_function(func, info, wait);
+ smp_call_function(func, info, 1);
#endif
func(info);
preempt_enable();
@@ -363,7 +363,7 @@ static inline void local_r4k___flush_cache_all(void * args)
static void r4k___flush_cache_all(void)
{
- r4k_on_each_cpu(local_r4k___flush_cache_all, NULL, 1);
+ r4k_on_each_cpu(local_r4k___flush_cache_all, NULL);
}
static inline int has_valid_asid(const struct mm_struct *mm)
@@ -410,7 +410,7 @@ static void r4k_flush_cache_range(struct vm_area_struct *vma,
int exec = vma->vm_flags & VM_EXEC;
if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
- r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1);
+ r4k_on_each_cpu(local_r4k_flush_cache_range, vma);
}
static inline void local_r4k_flush_cache_mm(void * args)
@@ -442,7 +442,7 @@ static void r4k_flush_cache_mm(struct mm_struct *mm)
if (!cpu_has_dc_aliases)
return;
- r4k_on_each_cpu(local_r4k_flush_cache_mm, mm, 1);
+ r4k_on_each_cpu(local_r4k_flush_cache_mm, mm);
}
struct flush_cache_page_args {
@@ -534,7 +534,7 @@ static void r4k_flush_cache_page(struct vm_area_struct *vma,
args.addr = addr;
args.pfn = pfn;
- r4k_on_each_cpu(local_r4k_flush_cache_page, &args, 1);
+ r4k_on_each_cpu(local_r4k_flush_cache_page, &args);
}
static inline void local_r4k_flush_data_cache_page(void * addr)
@@ -547,8 +547,7 @@ static void r4k_flush_data_cache_page(unsigned long addr)
if (in_atomic())
local_r4k_flush_data_cache_page((void *)addr);
else
- r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr,
- 1);
+ r4k_on_each_cpu(local_r4k_flush_data_cache_page, (void *) addr);
}
struct flush_icache_range_args {
@@ -589,7 +588,7 @@ static void r4k_flush_icache_range(unsigned long start, unsigned long end)
args.start = start;
args.end = end;
- r4k_on_each_cpu(local_r4k_flush_icache_range_ipi, &args, 1);
+ r4k_on_each_cpu(local_r4k_flush_icache_range_ipi, &args);
instruction_hazard();
}
@@ -710,7 +709,7 @@ static void local_r4k_flush_cache_sigtramp(void * arg)
static void r4k_flush_cache_sigtramp(unsigned long addr)
{
- r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr, 1);
+ r4k_on_each_cpu(local_r4k_flush_cache_sigtramp, (void *) addr);
}
static void r4k_flush_icache_all(void)
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 469d4019f79..21ea14efb83 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -95,10 +95,9 @@ void *dma_alloc_noncoherent(struct device *dev, size_t size,
return ret;
}
-
EXPORT_SYMBOL(dma_alloc_noncoherent);
-void *dma_alloc_coherent(struct device *dev, size_t size,
+static void *mips_dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t * dma_handle, gfp_t gfp)
{
void *ret;
@@ -123,7 +122,6 @@ void *dma_alloc_coherent(struct device *dev, size_t size,
return ret;
}
-EXPORT_SYMBOL(dma_alloc_coherent);
void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
@@ -131,10 +129,9 @@ void dma_free_noncoherent(struct device *dev, size_t size, void *vaddr,
plat_unmap_dma_mem(dev, dma_handle, size, DMA_BIDIRECTIONAL);
free_pages((unsigned long) vaddr, get_order(size));
}
-
EXPORT_SYMBOL(dma_free_noncoherent);
-void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
+static void mips_dma_free_coherent(struct device *dev, size_t size, void *vaddr,
dma_addr_t dma_handle)
{
unsigned long addr = (unsigned long) vaddr;
@@ -151,8 +148,6 @@ void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
free_pages(addr, get_order(size));
}
-EXPORT_SYMBOL(dma_free_coherent);
-
static inline void __dma_sync(unsigned long addr, size_t size,
enum dma_data_direction direction)
{
@@ -174,21 +169,8 @@ static inline void __dma_sync(unsigned long addr, size_t size,
}
}
-dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
- enum dma_data_direction direction)
-{
- unsigned long addr = (unsigned long) ptr;
-
- if (!plat_device_is_coherent(dev))
- __dma_sync(addr, size, direction);
-
- return plat_map_dma_mem(dev, ptr, size);
-}
-
-EXPORT_SYMBOL(dma_map_single);
-
-void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
- enum dma_data_direction direction)
+static void mips_dma_unmap_page(struct device *dev, dma_addr_t dma_addr,
+ size_t size, enum dma_data_direction direction, struct dma_attrs *attrs)
{
if (cpu_is_noncoherent_r10000(dev))
__dma_sync(dma_addr_to_virt(dev, dma_addr), size,
@@ -197,15 +179,11 @@ void dma_unmap_single(struct device *dev, dma_addr_t dma_addr, size_t size,
plat_unmap_dma_mem(dev, dma_addr, size, direction);
}
-EXPORT_SYMBOL(dma_unmap_single);
-
-int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
- enum dma_data_direction direction)
+static int mips_dma_map_sg(struct device *dev, struct scatterlist *sg,
+ int nents, enum dma_data_direction direction, struct dma_attrs *attrs)
{
int i;
- BUG_ON(direction == DMA_NONE);
-
for (i = 0; i < nents; i++, sg++) {
unsigned long addr;
@@ -219,33 +197,27 @@ int dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,
return nents;
}
-EXPORT_SYMBOL(dma_map_sg);
-
-dma_addr_t dma_map_page(struct device *dev, struct page *page,
- unsigned long offset, size_t size, enum dma_data_direction direction)
+static dma_addr_t mips_dma_map_page(struct device *dev, struct page *page,
+ unsigned long offset, size_t size, enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
- BUG_ON(direction == DMA_NONE);
+ unsigned long addr;
- if (!plat_device_is_coherent(dev)) {
- unsigned long addr;
+ addr = (unsigned long) page_address(page) + offset;
- addr = (unsigned long) page_address(page) + offset;
+ if (!plat_device_is_coherent(dev))
__dma_sync(addr, size, direction);
- }
- return plat_map_dma_mem_page(dev, page) + offset;
+ return plat_map_dma_mem(dev, (void *)addr, size);
}
-EXPORT_SYMBOL(dma_map_page);
-
-void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
- enum dma_data_direction direction)
+static void mips_dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+ int nhwentries, enum dma_data_direction direction,
+ struct dma_attrs *attrs)
{
unsigned long addr;
int i;
- BUG_ON(direction == DMA_NONE);
-
for (i = 0; i < nhwentries; i++, sg++) {
if (!plat_device_is_coherent(dev) &&
direction != DMA_TO_DEVICE) {
@@ -257,13 +229,9 @@ void dma_unmap_sg(struct device *dev, struct scatterlist *sg, int nhwentries,
}
}
-EXPORT_SYMBOL(dma_unmap_sg);
-
-void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction direction)
+static void mips_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);
-
if (cpu_is_noncoherent_r10000(dev)) {
unsigned long addr;
@@ -272,13 +240,9 @@ void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
}
}
-EXPORT_SYMBOL(dma_sync_single_for_cpu);
-
-void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
- size_t size, enum dma_data_direction direction)
+static void mips_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);
-
plat_extra_sync_for_device(dev);
if (!plat_device_is_coherent(dev)) {
unsigned long addr;
@@ -288,46 +252,11 @@ void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
}
}
-EXPORT_SYMBOL(dma_sync_single_for_device);
-
-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);
-
- if (cpu_is_noncoherent_r10000(dev)) {
- unsigned long addr;
-
- addr = dma_addr_to_virt(dev, dma_handle);
- __dma_sync(addr + offset, size, direction);
- }
-}
-
-EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
-
-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);
-
- plat_extra_sync_for_device(dev);
- if (!plat_device_is_coherent(dev)) {
- unsigned long addr;
-
- addr = dma_addr_to_virt(dev, dma_handle);
- __dma_sync(addr + offset, size, direction);
- }
-}
-
-EXPORT_SYMBOL(dma_sync_single_range_for_device);
-
-void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
+static void mips_dma_sync_sg_for_cpu(struct device *dev,
+ struct scatterlist *sg, int nelems, enum dma_data_direction direction)
{
int i;
- BUG_ON(direction == DMA_NONE);
-
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (cpu_is_noncoherent_r10000(dev))
@@ -336,15 +265,11 @@ void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems,
}
}
-EXPORT_SYMBOL(dma_sync_sg_for_cpu);
-
-void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems,
- enum dma_data_direction direction)
+static void mips_dma_sync_sg_for_device(struct device *dev,
+ struct scatterlist *sg, int nelems, enum dma_data_direction direction)
{
int i;
- BUG_ON(direction == DMA_NONE);
-
/* Make sure that gcc doesn't leave the empty loop body. */
for (i = 0; i < nelems; i++, sg++) {
if (!plat_device_is_coherent(dev))
@@ -353,24 +278,18 @@ void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nele
}
}
-EXPORT_SYMBOL(dma_sync_sg_for_device);
-
-int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
{
return plat_dma_mapping_error(dev, dma_addr);
}
-EXPORT_SYMBOL(dma_mapping_error);
-
-int dma_supported(struct device *dev, u64 mask)
+int mips_dma_supported(struct device *dev, u64 mask)
{
return plat_dma_supported(dev, mask);
}
-EXPORT_SYMBOL(dma_supported);
-
void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction direction)
+ enum dma_data_direction direction)
{
BUG_ON(direction == DMA_NONE);
@@ -380,3 +299,31 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
}
EXPORT_SYMBOL(dma_cache_sync);
+
+static struct dma_map_ops mips_default_dma_map_ops = {
+ .alloc_coherent = mips_dma_alloc_coherent,
+ .free_coherent = mips_dma_free_coherent,
+ .map_page = mips_dma_map_page,
+ .unmap_page = mips_dma_unmap_page,
+ .map_sg = mips_dma_map_sg,
+ .unmap_sg = mips_dma_unmap_sg,
+ .sync_single_for_cpu = mips_dma_sync_single_for_cpu,
+ .sync_single_for_device = mips_dma_sync_single_for_device,
+ .sync_sg_for_cpu = mips_dma_sync_sg_for_cpu,
+ .sync_sg_for_device = mips_dma_sync_sg_for_device,
+ .mapping_error = mips_dma_mapping_error,
+ .dma_supported = mips_dma_supported
+};
+
+struct dma_map_ops *mips_dma_map_ops = &mips_default_dma_map_ops;
+EXPORT_SYMBOL(mips_dma_map_ops);
+
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+
+static int __init mips_dma_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+
+ return 0;
+}
+fs_initcall(mips_dma_init);
diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c
index 783ad0065fd..137ee76a004 100644
--- a/arch/mips/mm/fault.c
+++ b/arch/mips/mm/fault.c
@@ -18,6 +18,7 @@
#include <linux/smp.h>
#include <linux/module.h>
#include <linux/kprobes.h>
+#include <linux/perf_event.h>
#include <asm/branch.h>
#include <asm/mmu_context.h>
@@ -144,6 +145,7 @@ good_area:
* the fault.
*/
fault = handle_mm_fault(mm, vma, address, write ? FAULT_FLAG_WRITE : 0);
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, 0, regs, address);
if (unlikely(fault & VM_FAULT_ERROR)) {
if (fault & VM_FAULT_OOM)
goto out_of_memory;
@@ -151,10 +153,15 @@ good_area:
goto do_sigbus;
BUG();
}
- if (fault & VM_FAULT_MAJOR)
+ if (fault & VM_FAULT_MAJOR) {
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MAJ,
+ 1, 0, regs, address);
tsk->maj_flt++;
- else
+ } else {
+ perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS_MIN,
+ 1, 0, regs, address);
tsk->min_flt++;
+ }
up_read(&mm->mmap_sem);
return;
diff --git a/arch/mips/mm/highmem.c b/arch/mips/mm/highmem.c
index 6a2b1bf9ef1..3634c7ea06a 100644
--- a/arch/mips/mm/highmem.c
+++ b/arch/mips/mm/highmem.c
@@ -9,7 +9,7 @@ static pte_t *kmap_pte;
unsigned long highstart_pfn, highend_pfn;
-void *__kmap(struct page *page)
+void *kmap(struct page *page)
{
void *addr;
@@ -21,16 +21,16 @@ void *__kmap(struct page *page)
return addr;
}
-EXPORT_SYMBOL(__kmap);
+EXPORT_SYMBOL(kmap);
-void __kunmap(struct page *page)
+void kunmap(struct page *page)
{
BUG_ON(in_interrupt());
if (!PageHighMem(page))
return;
kunmap_high(page);
}
-EXPORT_SYMBOL(__kunmap);
+EXPORT_SYMBOL(kunmap);
/*
* kmap_atomic/kunmap_atomic is significantly faster than kmap/kunmap because
@@ -41,17 +41,17 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -64,43 +64,48 @@ void *__kmap_atomic(struct page *page, enum km_type type)
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic_notypecheck(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
-#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ int type;
if (vaddr < FIXADDR_START) { // FIXME
pagefault_enable();
return;
}
- BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ type = kmap_atomic_idx();
+#ifdef CONFIG_DEBUG_HIGHMEM
+ {
+ int idx = type + KM_TYPE_NR * smp_processor_id();
- /*
- * force other mappings to Oops if they'll try to access
- * this pte without first remap it
- */
- pte_clear(&init_mm, vaddr, kmap_pte-idx);
- local_flush_tlb_one(vaddr);
-#endif
+ BUG_ON(vaddr != __fix_to_virt(FIX_KMAP_BEGIN + idx));
+ /*
+ * force other mappings to Oops if they'll try to access
+ * this pte without first remap it
+ */
+ pte_clear(&init_mm, vaddr, kmap_pte-idx);
+ local_flush_tlb_one(vaddr);
+ }
+#endif
+ kmap_atomic_idx_pop();
pagefault_enable();
}
-EXPORT_SYMBOL(__kunmap_atomic_notypecheck);
+EXPORT_SYMBOL(__kunmap_atomic);
/*
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- enum fixed_addresses idx;
unsigned long vaddr;
+ int idx, type;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
@@ -109,7 +114,7 @@ void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
return (void*) vaddr;
}
-struct page *__kmap_atomic_to_page(void *ptr)
+struct page *kmap_atomic_to_page(void *ptr)
{
unsigned long idx, vaddr = (unsigned long)ptr;
pte_t *pte;
diff --git a/arch/mips/mm/sc-mips.c b/arch/mips/mm/sc-mips.c
index 5ab5fa8c1d8..9cca8de0054 100644
--- a/arch/mips/mm/sc-mips.c
+++ b/arch/mips/mm/sc-mips.c
@@ -57,6 +57,38 @@ static struct bcache_ops mips_sc_ops = {
.bc_inv = mips_sc_inv
};
+/*
+ * Check if the L2 cache controller is activated on a particular platform.
+ * MTI's L2 controller and the L2 cache controller of Broadcom's BMIPS
+ * cores both use c0_config2's bit 12 as "L2 Bypass" bit, that is the
+ * cache being disabled. However there is no guarantee for this to be
+ * true on all platforms. In an act of stupidity the spec defined bits
+ * 12..15 as implementation defined so below function will eventually have
+ * to be replaced by a platform specific probe.
+ */
+static inline int mips_sc_is_activated(struct cpuinfo_mips *c)
+{
+ unsigned int config2 = read_c0_config2();
+ unsigned int tmp;
+
+ /* Check the bypass bit (L2B) */
+ switch (c->cputype) {
+ case CPU_34K:
+ case CPU_74K:
+ case CPU_1004K:
+ case CPU_BMIPS5000:
+ if (config2 & (1 << 12))
+ return 0;
+ }
+
+ tmp = (config2 >> 4) & 0x0f;
+ if (0 < tmp && tmp <= 7)
+ c->scache.linesz = 2 << tmp;
+ else
+ return 0;
+ return 1;
+}
+
static inline int __init mips_sc_probe(void)
{
struct cpuinfo_mips *c = &current_cpu_data;
@@ -79,10 +111,8 @@ static inline int __init mips_sc_probe(void)
return 0;
config2 = read_c0_config2();
- tmp = (config2 >> 4) & 0x0f;
- if (0 < tmp && tmp <= 7)
- c->scache.linesz = 2 << tmp;
- else
+
+ if (!mips_sc_is_activated(c))
return 0;
tmp = (config2 >> 8) & 0x0f;
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 4510e61883e..93816f3bca6 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -338,13 +338,12 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l,
case CPU_4KSC:
case CPU_20KC:
case CPU_25KF:
- case CPU_BCM3302:
- case CPU_BCM4710:
+ case CPU_BMIPS32:
+ case CPU_BMIPS3300:
+ case CPU_BMIPS4350:
+ case CPU_BMIPS4380:
+ case CPU_BMIPS5000:
case CPU_LOONGSON2:
- case CPU_BCM6338:
- case CPU_BCM6345:
- case CPU_BCM6348:
- case CPU_BCM6358:
case CPU_R5500:
if (m4kc_tlbp_war())
uasm_i_nop(p);
diff --git a/arch/mips/mm/uasm.c b/arch/mips/mm/uasm.c
index d2647a4e012..23afdebc8e5 100644
--- a/arch/mips/mm/uasm.c
+++ b/arch/mips/mm/uasm.c
@@ -405,7 +405,6 @@ I_u1u2u3(_mfc0)
I_u1u2u3(_mtc0)
I_u2u1u3(_ori)
I_u3u1u2(_or)
-I_u2s3u1(_pref)
I_0(_rfe)
I_u2s3u1(_sc)
I_u2s3u1(_scd)
@@ -427,6 +426,25 @@ I_u1(_syscall);
I_u1u2s3(_bbit0);
I_u1u2s3(_bbit1);
+#ifdef CONFIG_CPU_CAVIUM_OCTEON
+#include <asm/octeon/octeon.h>
+void __uasminit uasm_i_pref(u32 **buf, unsigned int a, signed int b,
+ unsigned int c)
+{
+ if (OCTEON_IS_MODEL(OCTEON_CN63XX_PASS1_X) && a <= 24 && a != 5)
+ /*
+ * As per erratum Core-14449, replace prefetches 0-4,
+ * 6-24 with 'pref 28'.
+ */
+ build_insn(buf, insn_pref, c, 28, b);
+ else
+ build_insn(buf, insn_pref, c, a, b);
+}
+UASM_EXPORT_SYMBOL(uasm_i_pref);
+#else
+I_u2s3u1(_pref)
+#endif
+
/* Handle labels. */
void __uasminit uasm_build_label(struct uasm_label **lab, u32 *addr, int lid)
{
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 23:57:51 +0000