---

yaml --- r: 332214 b: refs/heads/master c: 9b11d43 h: refs/heads/master v: v3
git-mirror · Sep 27, 2012 · 4875b5e · 4875b5e
1 parent d6ba57a
commit 4875b5e
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Showing 33 changed files with 42 additions and 923 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c9f0f0c0e139f84dbfdfa51a66dbfd35f9b7d5b0
+refs/heads/master: 9b11d4370c3a425e18ffccc1e93062864eca7337
diff --git a/trunk/arch/mips/Kbuild.platforms b/trunk/arch/mips/Kbuild.platforms
@@ -15,7 +15,6 @@ platforms += lantiq
 platforms += lasat
 platforms += loongson
 platforms += loongson1
-platforms += mipssim
 platforms += mti-malta
 platforms += netlogic
 platforms += pmc-sierra

diff --git a/trunk/arch/mips/Kconfig b/trunk/arch/mips/Kconfig
@@ -320,25 +320,6 @@ config MIPS_MALTA
 	  This enables support for the MIPS Technologies Malta evaluation
 	  board.
 
-config MIPS_SIM
-	bool 'MIPS simulator (MIPSsim)'
-	select CEVT_R4K
-	select CSRC_R4K
-	select DMA_NONCOHERENT
-	select SYS_HAS_EARLY_PRINTK
-	select IRQ_CPU
-	select BOOT_RAW
-	select SYS_HAS_CPU_MIPS32_R1
-	select SYS_HAS_CPU_MIPS32_R2
-	select SYS_HAS_EARLY_PRINTK
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_MULTITHREADING
-	select SYS_SUPPORTS_LITTLE_ENDIAN
-	help
-	  This option enables support for MIPS Technologies MIPSsim software
-	  emulator.
-
 config NEC_MARKEINS
 	bool "NEC EMMA2RH Mark-eins board"
 	select SOC_EMMA2RH

diff --git a/...arch/mips/configs/cavium-octeon_defconfig → ...arch/mips/configs/cavium_octeon_defconfig b/...arch/mips/configs/cavium-octeon_defconfig → ...arch/mips/configs/cavium_octeon_defconfig
diff --git a/trunk/arch/mips/configs/mipssim_defconfig b/trunk/arch/mips/configs/mipssim_defconfig
diff --git a/...rch/mips/configs/pnx8335-stb225_defconfig → ...rch/mips/configs/pnx8335_stb225_defconfig b/...rch/mips/configs/pnx8335-stb225_defconfig → ...rch/mips/configs/pnx8335_stb225_defconfig
diff --git a/...k/arch/mips/configs/pnx8550-jbs_defconfig → ...k/arch/mips/configs/pnx8550_jbs_defconfig b/...k/arch/mips/configs/pnx8550-jbs_defconfig → ...k/arch/mips/configs/pnx8550_jbs_defconfig
diff --git a/...rch/mips/configs/pnx8550-stb810_defconfig → ...rch/mips/configs/pnx8550_stb810_defconfig b/...rch/mips/configs/pnx8550-stb810_defconfig → ...rch/mips/configs/pnx8550_stb810_defconfig
diff --git a/.../arch/mips/configs/sb1250-swarm_defconfig → .../arch/mips/configs/sb1250_swarm_defconfig b/.../arch/mips/configs/sb1250-swarm_defconfig → .../arch/mips/configs/sb1250_swarm_defconfig
diff --git a/trunk/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h b/trunk/arch/mips/include/asm/mach-mipssim/cpu-feature-overrides.h
diff --git a/trunk/arch/mips/include/asm/mach-mipssim/war.h b/trunk/arch/mips/include/asm/mach-mipssim/war.h
diff --git a/trunk/arch/mips/include/asm/mips-boards/simint.h b/trunk/arch/mips/include/asm/mips-boards/simint.h
diff --git a/trunk/arch/mips/include/asm/thread_info.h b/trunk/arch/mips/include/asm/thread_info.h
@@ -139,10 +139,10 @@ register struct thread_info *__current_thread_info __asm__("$28");
 #define _TIF_WORK_SYSCALL_EXIT	(_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT)
 
 /* work to do on interrupt/exception return */
-#define _TIF_WORK_MASK		(0x0000ffef &				\
-					~(_TIF_SECCOMP | _TIF_SYSCALL_AUDIT))
+#define _TIF_WORK_MASK		\
+	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME)
 /* work to do on any return to u-space */
-#define _TIF_ALLWORK_MASK	(0x8000ffff & ~_TIF_SECCOMP)
+#define _TIF_ALLWORK_MASK	(_TIF_WORK_MASK | _TIF_WORK_SYSCALL_EXIT)
 
 #endif /* __KERNEL__ */
 

diff --git a/trunk/arch/mips/include/asm/unistd.h b/trunk/arch/mips/include/asm/unistd.h
@@ -367,16 +367,17 @@
 #define __NR_setns			(__NR_Linux + 344)
 #define __NR_process_vm_readv		(__NR_Linux + 345)
 #define __NR_process_vm_writev		(__NR_Linux + 346)
+#define __NR_kcmp			(__NR_Linux + 347)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		346
+#define __NR_Linux_syscalls		347
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		346
+#define __NR_O32_Linux_syscalls		347
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -690,16 +691,17 @@
 #define __NR_setns			(__NR_Linux + 303)
 #define __NR_process_vm_readv		(__NR_Linux + 304)
 #define __NR_process_vm_writev		(__NR_Linux + 305)
+#define __NR_kcmp			(__NR_Linux + 306)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		305
+#define __NR_Linux_syscalls		306
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		305
+#define __NR_64_Linux_syscalls		306
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -1018,16 +1020,17 @@
 #define __NR_setns			(__NR_Linux + 308)
 #define __NR_process_vm_readv		(__NR_Linux + 309)
 #define __NR_process_vm_writev		(__NR_Linux + 310)
+#define __NR_kcmp			(__NR_Linux + 311)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		310
+#define __NR_Linux_syscalls		311
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		310
+#define __NR_N32_Linux_syscalls		311
 
 #ifdef __KERNEL__
 

diff --git a/trunk/arch/mips/kernel/entry.S b/trunk/arch/mips/kernel/entry.S
@@ -77,7 +77,7 @@ FEXPORT(syscall_exit)
 	and	t0, a2, t0
 	bnez	t0, syscall_exit_work
 
-FEXPORT(restore_all)			# restore full frame
+restore_all:				# restore full frame
 #ifdef CONFIG_MIPS_MT_SMTC
 #ifdef CONFIG_MIPS_MT_SMTC_IM_BACKSTOP
 /* Re-arm any temporarily masked interrupts not explicitly "acked" */
@@ -117,7 +117,7 @@ FEXPORT(restore_all)			# restore full frame
 	RESTORE_TEMP
 	RESTORE_AT
 	RESTORE_STATIC
-FEXPORT(restore_partial)		# restore partial frame
+restore_partial:		# restore partial frame
 #ifdef CONFIG_TRACE_IRQFLAGS
 	SAVE_STATIC
 	SAVE_AT
@@ -164,9 +164,18 @@ work_notifysig:				# deal with pending signals and
 	jal	do_notify_resume	# a2 already loaded
 	j	resume_userspace
 
-FEXPORT(syscall_exit_work_partial)
+FEXPORT(syscall_exit_partial)
+	local_irq_disable		# make sure need_resched doesn't
+					# change between and return
+	LONG_L	a2, TI_FLAGS($28)	# current->work
+	li	t0, _TIF_ALLWORK_MASK
+	and	t0, a2
+	beqz	t0, restore_partial
 	SAVE_STATIC
 syscall_exit_work:
+	LONG_L	t0, PT_STATUS(sp)		# returning to kernel mode?
+	andi	t0, t0, KU_USER
+	beqz	t0, resume_kernel
 	li	t0, _TIF_WORK_SYSCALL_EXIT
 	and	t0, a2			# a2 is preloaded with TI_FLAGS
 	beqz	t0, work_pending	# trace bit set?

diff --git a/trunk/arch/mips/kernel/scall32-o32.S b/trunk/arch/mips/kernel/scall32-o32.S
@@ -69,18 +69,7 @@ stack_done:
 1:	sw	v0, PT_R2(sp)		# result
 
 o32_syscall_exit:
-	local_irq_disable		# make sure need_resched and
-					# signals dont change between
-					# sampling and return
-	lw	a2, TI_FLAGS($28)	# current->work
-	li	t0, _TIF_ALLWORK_MASK
-	and	t0, a2
-	bnez	t0, o32_syscall_exit_work
-
-	j	restore_partial
-
-o32_syscall_exit_work:
-	j	syscall_exit_work_partial
+	j	syscall_exit_partial
 
 /* ------------------------------------------------------------------------ */
 
@@ -593,6 +582,7 @@ einval:	li	v0, -ENOSYS
 	sys	sys_setns		2
 	sys	sys_process_vm_readv	6	/* 4345 */
 	sys	sys_process_vm_writev	6
+	sys	sys_kcmp		5
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to

diff --git a/trunk/arch/mips/kernel/scall64-64.S b/trunk/arch/mips/kernel/scall64-64.S
@@ -72,18 +72,7 @@ NESTED(handle_sys64, PT_SIZE, sp)
 1:	sd	v0, PT_R2(sp)		# result
 
 n64_syscall_exit:
-	local_irq_disable		# make sure need_resched and
-					# signals dont change between
-					# sampling and return
-	LONG_L	a2, TI_FLAGS($28)	# current->work
-	li	t0, _TIF_ALLWORK_MASK
-	and	t0, a2, t0
-	bnez	t0, n64_syscall_exit_work
-
-	j	restore_partial
-
-n64_syscall_exit_work:
-	j	syscall_exit_work_partial
+	j	syscall_exit_partial
 
 /* ------------------------------------------------------------------------ */
 
@@ -432,4 +421,5 @@ sys_call_table:
 	PTR	sys_setns
 	PTR	sys_process_vm_readv
 	PTR	sys_process_vm_writev		/* 5305 */
+	PTR	sys_kcmp
 	.size	sys_call_table,.-sys_call_table