Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
  MIPS: R2: Fix problem with code that incorrectly modifies ebase.
  MIPS: Change {set,clear,change}_c0_<foo> to return old value.
  MIPS: compat: Remove duplicated #include
  MIPS: VR5500: Enable prefetch
  MIPS: Fix oops in dma_unmap_page on not coherent mips platforms

5 files changed, 20 insertions, 19 deletions

diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h
index 0417516503f6..526f327475ce 100644
--- a/arch/mips/include/asm/mipsregs.h
+++ b/arch/mips/include/asm/mipsregs.h
@@ -1391,11 +1391,11 @@ static inline void tlb_write_random(void)
 static inline unsigned int                                      \
 set_c0_##name(unsigned int set)                                 \
 {                                                               \
-        unsigned int res;                                       \
+        unsigned int res, new;                                  \
                                                                 \
         res = read_c0_##name();                                 \
-        res |= set;                                             \
-        write_c0_##name(res);                                   \
+        new = res | set;                                        \
+        write_c0_##name(new);                                   \
                                                                 \
         return res;                                             \
 }                                                               \
@@ -1403,24 +1403,24 @@ set_c0_##name(unsigned int set)					\
 static inline unsigned int                                      \
 clear_c0_##name(unsigned int clear)                             \
 {                                                               \
-        unsigned int res;                                       \
+        unsigned int res, new;                                  \
                                                                 \
         res = read_c0_##name();                                 \
-        res &= ~clear;                                          \
-        write_c0_##name(res);                                   \
+        new = res & ~clear;                                     \
+        write_c0_##name(new);                                   \
                                                                 \
         return res;                                             \
 }                                                               \
                                                                 \
 static inline unsigned int                                      \
-change_c0_##name(unsigned int change, unsigned int new)         \
+change_c0_##name(unsigned int change, unsigned int val)         \
 {                                                               \
-        unsigned int res;                                       \
+        unsigned int res, new;                                  \
                                                                 \
         res = read_c0_##name();                                 \
-        res &= ~change;                                         \
-        res |= (new & change);                                  \
-        write_c0_##name(res);                                   \
+        new = res & ~change;                                    \
+        new |= (val & change);                                  \
+        write_c0_##name(new);                                   \
                                                                 \
         return res;                                             \
 }
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 1a86f84fa947..49aac6e17df9 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -32,7 +32,6 @@
 #include <linux/module.h>
 #include <linux/binfmts.h>
 #include <linux/security.h>
-#include <linux/syscalls.h>
 #include <linux/compat.h>
 #include <linux/vfs.h>
 #include <linux/ipc.h>
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index b2d7041341b8..29fadaccecdd 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1520,7 +1520,9 @@ void __cpuinit per_cpu_trap_init(void)
 #endif /* CONFIG_MIPS_MT_SMTC */
 
         if (cpu_has_veic || cpu_has_vint) {
+                unsigned long sr = set_c0_status(ST0_BEV);
                 write_c0_ebase(ebase);
+                write_c0_status(sr);
                 /* Setting vector spacing enables EI/VI mode  */
                 change_c0_intctl(0x3e0, VECTORSPACING);
         }
@@ -1602,8 +1604,6 @@ void __cpuinit set_uncached_handler(unsigned long offset, void *addr,
 #ifdef CONFIG_64BIT
         unsigned long uncached_ebase = TO_UNCAC(ebase);
 #endif
-        if (cpu_has_mips_r2)
-                uncached_ebase += (read_c0_ebase() & 0x3ffff000);
 
         if (!addr)
                 panic(panic_null_cerr);
@@ -1635,9 +1635,11 @@ void __init trap_init(void)
                 return; /* Already done */
 #endif
 
-        if (cpu_has_veic || cpu_has_vint)
-                ebase = (unsigned long) alloc_bootmem_low_pages(0x200 + VECTORSPACING*64);
-        else {
+        if (cpu_has_veic || cpu_has_vint) {
+                unsigned long size = 0x200 + VECTORSPACING*64;
+                ebase = (unsigned long)
+                        __alloc_bootmem(size, 1 << fls(size), 0);
+        } else {
                 ebase = CAC_BASE;
                 if (cpu_has_mips_r2)
                         ebase += (read_c0_ebase() & 0x3ffff000);
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index c43f4b26a690..871e828bc62a 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -780,7 +780,7 @@ static void __cpuinit probe_pcache(void)
                 c->dcache.ways = 2;
                 c->dcache.waybit = 0;
 
-                c->options |= MIPS_CPU_CACHE_CDEX_P;
+                c->options |= MIPS_CPU_CACHE_CDEX_P | MIPS_CPU_PREFETCH;
                 break;
 
         case CPU_TX49XX:
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 546e6977d4ff..bed56f1ac837 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -225,7 +225,7 @@ void dma_unmap_page(struct device *dev, dma_addr_t dma_address, size_t size,
         if (!plat_device_is_coherent(dev) && direction != DMA_TO_DEVICE) {
                 unsigned long addr;
 
-                addr = plat_dma_addr_to_phys(dma_address);
+                addr = dma_addr_to_virt(dma_address);
                 dma_cache_wback_inv(addr, size);
         }