13 files changed, 119 insertions, 94 deletions

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 8e7bafc5dd0e..45d9c87d083a 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -1,9 +1,3 @@
-# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/kconfig-language.txt.
-#
-
-mainmenu "Linux/SPARC Kernel Configuration"
-
 config 64BIT
         bool "64-bit kernel" if ARCH = "sparc"
         default ARCH = "sparc64"
@@ -28,8 +22,6 @@ config SPARC
         select RTC_CLASS
         select RTC_DRV_M48T59
         select HAVE_IRQ_WORK
-        select HAVE_PERF_EVENTS
-        select PERF_USE_VMALLOC
         select HAVE_DMA_ATTRS
         select HAVE_DMA_API_DEBUG
         select HAVE_ARCH_JUMP_LABEL
@@ -56,7 +48,6 @@ config SPARC64
         select RTC_DRV_BQ4802
         select RTC_DRV_SUN4V
         select RTC_DRV_STARFIRE
-        select HAVE_IRQ_WORK
         select HAVE_PERF_EVENTS
         select PERF_USE_VMALLOC
 
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index 2889574608db..c2ced21c9dc1 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -208,6 +208,21 @@ _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
 #define memset_io(d,c,sz)       _memset_io(d,c,sz)
 
 static inline void
+_sbus_memcpy_fromio(void *dst, const volatile void __iomem *src,
+                    __kernel_size_t n)
+{
+        char *d = dst;
+
+        while (n--) {
+                char tmp = sbus_readb(src);
+                *d++ = tmp;
+                src++;
+        }
+}
+
+#define sbus_memcpy_fromio(d, s, sz)    _sbus_memcpy_fromio(d, s, sz)
+
+static inline void
 _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
 {
         char *d = dst;
@@ -222,6 +237,22 @@ _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
 #define memcpy_fromio(d,s,sz)   _memcpy_fromio(d,s,sz)
 
 static inline void
+_sbus_memcpy_toio(volatile void __iomem *dst, const void *src,
+                  __kernel_size_t n)
+{
+        const char *s = src;
+        volatile void __iomem *d = dst;
+
+        while (n--) {
+                char tmp = *s++;
+                sbus_writeb(tmp, d);
+                d++;
+        }
+}
+
+#define sbus_memcpy_toio(d, s, sz)      _sbus_memcpy_toio(d, s, sz)
+
+static inline void
 _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
 {
         const char *s = src;
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9517d063c79c..9c8965415f0a 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -419,6 +419,21 @@ _memset_io(volatile void __iomem *dst, int c, __kernel_size_t n)
 #define memset_io(d,c,sz)       _memset_io(d,c,sz)
 
 static inline void
+_sbus_memcpy_fromio(void *dst, const volatile void __iomem *src,
+                    __kernel_size_t n)
+{
+        char *d = dst;
+
+        while (n--) {
+                char tmp = sbus_readb(src);
+                *d++ = tmp;
+                src++;
+        }
+}
+
+#define sbus_memcpy_fromio(d, s, sz)    _sbus_memcpy_fromio(d, s, sz)
+
+static inline void
 _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
 {
         char *d = dst;
@@ -433,6 +448,22 @@ _memcpy_fromio(void *dst, const volatile void __iomem *src, __kernel_size_t n)
 #define memcpy_fromio(d,s,sz)   _memcpy_fromio(d,s,sz)
 
 static inline void
+_sbus_memcpy_toio(volatile void __iomem *dst, const void *src,
+                  __kernel_size_t n)
+{
+        const char *s = src;
+        volatile void __iomem *d = dst;
+
+        while (n--) {
+                char tmp = *s++;
+                sbus_writeb(tmp, d);
+                d++;
+        }
+}
+
+#define sbus_memcpy_toio(d, s, sz)      _sbus_memcpy_toio(d, s, sz)
+
+static inline void
 _memcpy_toio(volatile void __iomem *dst, const void *src, __kernel_size_t n)
 {
         const char *s = src;
diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h
index 62e66d7b2fb6..427d4684e0d2 100644
--- a/arch/sparc/include/asm/jump_label.h
+++ b/arch/sparc/include/asm/jump_label.h
@@ -4,7 +4,6 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
-#include <asm/system.h>
 
 #define JUMP_LABEL_NOP_SIZE 4
 
@@ -14,6 +13,7 @@
                          "nop\n\t"                              \
                          "nop\n\t"                              \
                          ".pushsection __jump_table,  \"a\"\n\t"\
+                         ".align 4\n\t"                         \
                          ".word 1b, %l[" #label "], %c0\n\t"    \
                          ".popsection \n\t"                     \
                          : :  "i" (key) :  : label);\
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h
index 5312782f0b5e..948b686ec089 100644
--- a/arch/sparc/include/asm/pci_64.h
+++ b/arch/sparc/include/asm/pci_64.h
@@ -38,7 +38,7 @@ static inline void pcibios_penalize_isa_irq(int irq, int active)
  * types on sparc64.  However, it requires that the device
  * can drive enough of the 64 bits.
  */
-#define PCI64_REQUIRED_MASK     (~(dma64_addr_t)0)
+#define PCI64_REQUIRED_MASK     (~(u64)0)
 #define PCI64_ADDR_BASE         0xfffc000000000000UL
 
 #ifdef CONFIG_PCI
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index 0116d8d10def..5ad6e5c5dbb3 100644
--- a/arch/sparc/kernel/irq_32.c
+++ b/arch/sparc/kernel/irq_32.c
@@ -365,7 +365,7 @@ static int request_fast_irq(unsigned int irq,
         unsigned long flags;
         unsigned int cpu_irq;
         int ret;
-#ifdef CONFIG_SMP
+#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON
         struct tt_entry *trap_table;
         extern struct tt_entry trapbase_cpu1, trapbase_cpu2, trapbase_cpu3;
 #endif
@@ -425,7 +425,7 @@ static int request_fast_irq(unsigned int irq,
         table[SP_TRAP_IRQ1+(cpu_irq-1)].inst_four = SPARC_NOP;
 
         INSTANTIATE(sparc_ttable)
-#ifdef CONFIG_SMP
+#if defined CONFIG_SMP && !defined CONFIG_SPARC_LEON
         trap_table = &trapbase_cpu1; INSTANTIATE(trap_table)
         trap_table = &trapbase_cpu2; INSTANTIATE(trap_table)
         trap_table = &trapbase_cpu3; INSTANTIATE(trap_table)
diff --git a/arch/sparc/kernel/leon_smp.c b/arch/sparc/kernel/leon_smp.c
index e1656fc41ccb..7524689b03d2 100644
--- a/arch/sparc/kernel/leon_smp.c
+++ b/arch/sparc/kernel/leon_smp.c
@@ -56,8 +56,8 @@ void __init leon_configure_cache_smp(void);
 static inline unsigned long do_swap(volatile unsigned long *ptr,
                                     unsigned long val)
 {
-        __asm__ __volatile__("swapa [%1] %2, %0\n\t" : "=&r"(val)
-                             : "r"(ptr), "i"(ASI_LEON_DCACHE_MISS)
+        __asm__ __volatile__("swapa [%2] %3, %0\n\t" : "=&r"(val)
+                             : "0"(val), "r"(ptr), "i"(ASI_LEON_DCACHE_MISS)
                              : "memory");
         return val;
 }
diff --git a/arch/sparc/kernel/ptrace_32.c b/arch/sparc/kernel/ptrace_32.c
index e608f397e11f..27b9e93d0121 100644
--- a/arch/sparc/kernel/ptrace_32.c
+++ b/arch/sparc/kernel/ptrace_32.c
@@ -323,18 +323,35 @@ const struct user_regset_view *task_user_regset_view(struct task_struct *task)
         return &user_sparc32_view;
 }
 
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+struct fps {
+        unsigned long regs[32];
+        unsigned long fsr;
+        unsigned long flags;
+        unsigned long extra;
+        unsigned long fpqd;
+        struct fq {
+                unsigned long *insnaddr;
+                unsigned long insn;
+        } fpq[16];
+};
+
+long arch_ptrace(struct task_struct *child, long request,
+                 unsigned long addr, unsigned long data)
 {
         unsigned long addr2 = current->thread.kregs->u_regs[UREG_I4];
+        void __user *addr2p;
         const struct user_regset_view *view;
+        struct pt_regs __user *pregs;
+        struct fps __user *fps;
         int ret;
 
         view = task_user_regset_view(current);
+        addr2p = (void __user *) addr2;
+        pregs = (struct pt_regs __user *) addr;
+        fps = (struct fps __user *) addr;
 
         switch(request) {
         case PTRACE_GETREGS: {
-                struct pt_regs __user *pregs = (struct pt_regs __user *) addr;
-
                 ret = copy_regset_to_user(child, view, REGSET_GENERAL,
                                           32 * sizeof(u32),
                                           4 * sizeof(u32),
@@ -348,8 +365,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         }
 
         case PTRACE_SETREGS: {
-                struct pt_regs __user *pregs = (struct pt_regs __user *) addr;
-
                 ret = copy_regset_from_user(child, view, REGSET_GENERAL,
                                             32 * sizeof(u32),
                                             4 * sizeof(u32),
@@ -363,19 +378,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         }
 
         case PTRACE_GETFPREGS: {
-                struct fps {
-                        unsigned long regs[32];
-                        unsigned long fsr;
-                        unsigned long flags;
-                        unsigned long extra;
-                        unsigned long fpqd;
-                        struct fq {
-                                unsigned long *insnaddr;
-                                unsigned long insn;
-                        } fpq[16];
-                };
-                struct fps __user *fps = (struct fps __user *) addr;
-
                 ret = copy_regset_to_user(child, view, REGSET_FP,
                                           0 * sizeof(u32),
                                           32 * sizeof(u32),
@@ -397,19 +399,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
         }
 
         case PTRACE_SETFPREGS: {
-                struct fps {
-                        unsigned long regs[32];
-                        unsigned long fsr;
-                        unsigned long flags;
-                        unsigned long extra;
-                        unsigned long fpqd;
-                        struct fq {
-                                unsigned long *insnaddr;
-                                unsigned long insn;
-                        } fpq[16];
-                };
-                struct fps __user *fps = (struct fps __user *) addr;
-
                 ret = copy_regset_from_user(child, view, REGSET_FP,
                                             0 * sizeof(u32),
                                             32 * sizeof(u32),
@@ -424,8 +413,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_READTEXT:
         case PTRACE_READDATA:
-                ret = ptrace_readdata(child, addr,
-                                      (void __user *) addr2, data);
+                ret = ptrace_readdata(child, addr, addr2p, data);
 
                 if (ret == data)
                         ret = 0;
@@ -435,8 +423,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_WRITETEXT:
         case PTRACE_WRITEDATA:
-                ret = ptrace_writedata(child, (void __user *) addr2,
-                                       addr, data);
+                ret = ptrace_writedata(child, addr2p, addr, data);
 
                 if (ret == data)
                         ret = 0;
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index aa90da08bf61..9ccc812bc09e 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -969,16 +969,19 @@ struct fps {
         unsigned long fsr;
 };
 
-long arch_ptrace(struct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request,
+                 unsigned long addr, unsigned long data)
 {
         const struct user_regset_view *view = task_user_regset_view(current);
         unsigned long addr2 = task_pt_regs(current)->u_regs[UREG_I4];
         struct pt_regs __user *pregs;
         struct fps __user *fps;
+        void __user *addr2p;
         int ret;
 
-        pregs = (struct pt_regs __user *) (unsigned long) addr;
-        fps = (struct fps __user *) (unsigned long) addr;
+        pregs = (struct pt_regs __user *) addr;
+        fps = (struct fps __user *) addr;
+        addr2p = (void __user *) addr2;
 
         switch (request) {
         case PTRACE_PEEKUSR:
@@ -1029,8 +1032,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_READTEXT:
         case PTRACE_READDATA:
-                ret = ptrace_readdata(child, addr,
-                                      (char __user *)addr2, data);
+                ret = ptrace_readdata(child, addr, addr2p, data);
                 if (ret == data)
                         ret = 0;
                 else if (ret >= 0)
@@ -1039,8 +1041,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 
         case PTRACE_WRITETEXT:
         case PTRACE_WRITEDATA:
-                ret = ptrace_writedata(child, (char __user *) addr2,
-                                       addr, data);
+                ret = ptrace_writedata(child, addr2p, addr, data);
                 if (ret == data)
                         ret = 0;
                 else if (ret >= 0)
diff --git a/arch/sparc/kernel/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S
index 4da2e1f66290..5f5f74c2c2ca 100644
--- a/arch/sparc/kernel/rtrap_32.S
+++ b/arch/sparc/kernel/rtrap_32.S
@@ -78,9 +78,9 @@ signal_p:
         call    do_notify_resume
          add    %sp, STACKFRAME_SZ, %o0 ! pt_regs ptr
 
-        /* Fall through. */
-        ld      [%sp + STACKFRAME_SZ + PT_PSR], %t_psr
-        clr     %l6
+        b       signal_p
+         ld     [%curptr + TI_FLAGS], %g2
+
 ret_trap_continue:
         sethi   %hi(PSR_SYSCALL), %g1
         andn    %t_psr, %g1, %t_psr
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index 090b9e9ad5e3..77f1b95e0806 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -34,37 +34,9 @@ __handle_preemption:
 __handle_user_windows:
                 call                    fault_in_user_windows
                  wrpr                   %g0, RTRAP_PSTATE, %pstate
-                wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                /* Redo sched+sig checks */
-                ldx                     [%g6 + TI_FLAGS], %l0
-                andcc                   %l0, _TIF_NEED_RESCHED, %g0
-
-                be,pt                   %xcc, 1f
-                 nop
-                call                    schedule
-                 wrpr                   %g0, RTRAP_PSTATE, %pstate
-                wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                ldx                     [%g6 + TI_FLAGS], %l0
-
-1:              andcc                   %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0
-                be,pt                   %xcc, __handle_user_windows_continue
-                 nop
-                mov                     %l5, %o1
-                add                     %sp, PTREGS_OFF, %o0
-                mov                     %l0, %o2
-
-                call                    do_notify_resume
-                 wrpr                   %g0, RTRAP_PSTATE, %pstate
-                wrpr                    %g0, RTRAP_PSTATE_IRQOFF, %pstate
-                /* Signal delivery can modify pt_regs tstate, so we must
-                 * reload it.
-                 */
-                ldx                     [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
-                sethi                   %hi(0xf << 20), %l4
-                and                     %l1, %l4, %l4
-                ba,pt                   %xcc, __handle_user_windows_continue
+                ba,pt                   %xcc, __handle_preemption_continue
+                 wrpr                   %g0, RTRAP_PSTATE_IRQOFF, %pstate
 
-                 andn                   %l1, %l4, %l1
 __handle_userfpu:
                 rd                      %fprs, %l5
                 andcc                   %l5, FPRS_FEF, %g0
@@ -87,7 +59,7 @@ __handle_signal:
                 ldx                     [%sp + PTREGS_OFF + PT_V9_TSTATE], %l1
                 sethi                   %hi(0xf << 20), %l4
                 and                     %l1, %l4, %l4
-                ba,pt                   %xcc, __handle_signal_continue
+                ba,pt                   %xcc, __handle_preemption_continue
                  andn                   %l1, %l4, %l1
 
                 /* When returning from a NMI (%pil==15) interrupt we want to
@@ -177,11 +149,9 @@ __handle_preemption_continue:
                 bne,pn                  %xcc, __handle_preemption
                  andcc                  %l0, _TIF_DO_NOTIFY_RESUME_MASK, %g0
                 bne,pn                  %xcc, __handle_signal
-__handle_signal_continue:
                  ldub                   [%g6 + TI_WSAVED], %o2
                 brnz,pn                 %o2, __handle_user_windows
                  nop
-__handle_user_windows_continue:
                 sethi                   %hi(TSTATE_PEF), %o0
                 andcc                   %l1, %o0, %g0
 
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index bd8601601afa..5b836f5aea90 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -539,6 +539,12 @@ do_sigbus:
         __do_fault_siginfo(BUS_ADRERR, SIGBUS, tsk->thread.kregs, address);
 }
 
+static void check_stack_aligned(unsigned long sp)
+{
+        if (sp & 0x7UL)
+                force_sig(SIGILL, current);
+}
+
 void window_overflow_fault(void)
 {
         unsigned long sp;
@@ -547,6 +553,8 @@ void window_overflow_fault(void)
         if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
                 force_user_fault(sp + 0x38, 1);
         force_user_fault(sp, 1);
+
+        check_stack_aligned(sp);
 }
 
 void window_underflow_fault(unsigned long sp)
@@ -554,6 +562,8 @@ void window_underflow_fault(unsigned long sp)
         if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
                 force_user_fault(sp + 0x38, 0);
         force_user_fault(sp, 0);
+
+        check_stack_aligned(sp);
 }
 
 void window_ret_fault(struct pt_regs *regs)
@@ -564,4 +574,6 @@ void window_ret_fault(struct pt_regs *regs)
         if(((sp + 0x38) & PAGE_MASK) != (sp & PAGE_MASK))
                 force_user_fault(sp + 0x38, 0);
         force_user_fault(sp, 0);
+
+        check_stack_aligned(sp);
 }
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index 5e50c09b7dce..4730eac0747b 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -75,7 +75,7 @@ void __kunmap_atomic(void *kvaddr)
                 return;
         }
 
-        type = kmap_atomic_idx_pop();
+        type = kmap_atomic_idx();
 
 #ifdef CONFIG_DEBUG_HIGHMEM
         {
@@ -104,6 +104,8 @@ void __kunmap_atomic(void *kvaddr)
 #endif
         }
 #endif
+
+        kmap_atomic_idx_pop();
         pagefault_enable();
 }
 EXPORT_SYMBOL(__kunmap_atomic);