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-rw-r--r--Makefile3
-rw-r--r--arch/sparc/Kconfig3
-rw-r--r--arch/sparc/include/asm/jump_label.h1
-rw-r--r--arch/sparc/kernel/irq_32.c4
-rw-r--r--arch/sparc/kernel/leon_smp.c4
-rw-r--r--arch/sparc/kernel/rtrap_32.S6
-rw-r--r--arch/sparc/kernel/rtrap_64.S36
-rw-r--r--arch/sparc/mm/fault_32.c12
8 files changed, 25 insertions, 44 deletions
diff --git a/Makefile b/Makefile
index 6b23f1b15fc..519db43052a 100644
--- a/Makefile
+++ b/Makefile
@@ -204,6 +204,9 @@ ifeq ($(ARCH),x86_64)
endif
# Additional ARCH settings for sparc
+ifeq ($(ARCH),sparc32)
+ SRCARCH := sparc
+endif
ifeq ($(ARCH),sparc64)
SRCARCH := sparc
endif
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index a9aaed3c3d9..45d9c87d083 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -22,8 +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
@@ -50,7 +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/jump_label.h b/arch/sparc/include/asm/jump_label.h
index 62e66d7b2fb..65c0d302979 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
diff --git a/arch/sparc/kernel/irq_32.c b/arch/sparc/kernel/irq_32.c
index 0116d8d10de..5ad6e5c5dbb 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 e1656fc41cc..7524689b03d 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/rtrap_32.S b/arch/sparc/kernel/rtrap_32.S
index 4da2e1f6629..5f5f74c2c2c 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 090b9e9ad5e..77f1b95e080 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 bd8601601af..5b836f5aea9 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);
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 18:35:19 +0000