Merge branch 'master'

11 files changed, 45 insertions, 92 deletions

diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index 5f68b220c26..e00e5f6e7fd 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -161,60 +161,6 @@ out:
 	return error;
 }
 
-struct dirent32 {
-	unsigned int	d_ino;
-	unsigned int	d_off;
-	unsigned short	d_reclen;
-	char		d_name[NAME_MAX + 1];
-};
-
-static void
-xlate_dirent(void *dirent64, void *dirent32, long n)
-{
-	long off;
-	struct dirent *dirp;
-	struct dirent32 *dirp32;
-
-	off = 0;
-	while (off < n) {
-		dirp = (struct dirent *)(dirent64 + off);
-		dirp32 = (struct dirent32 *)(dirent32 + off);
-		off += dirp->d_reclen;
-		dirp32->d_ino = dirp->d_ino;
-		dirp32->d_off = (unsigned int)dirp->d_off;
-		dirp32->d_reclen = dirp->d_reclen;
-		strncpy(dirp32->d_name, dirp->d_name, dirp->d_reclen - ((3 * 4) + 2));
-	}
-	return;
-}
-
-asmlinkage long
-sys32_getdents(unsigned int fd, void * dirent32, unsigned int count)
-{
-	long n;
-	void *dirent64;
-
-	dirent64 = (void *)((unsigned long)(dirent32 + (sizeof(long) - 1)) & ~(sizeof(long) - 1));
-	if ((n = sys_getdents(fd, dirent64, count - (dirent64 - dirent32))) < 0)
-		return(n);
-	xlate_dirent(dirent64, dirent32, n);
-	return(n);
-}
-
-asmlinkage int old_readdir(unsigned int fd, void * dirent, unsigned int count);
-
-asmlinkage int
-sys32_readdir(unsigned int fd, void * dirent32, unsigned int count)
-{
-	int n;
-	struct dirent dirent64;
-
-	if ((n = old_readdir(fd, &dirent64, count)) < 0)
-		return(n);
-	xlate_dirent(&dirent64, dirent32, dirent64.d_reclen);
-	return(n);
-}
-
 asmlinkage int
 sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr, int options)
 {
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index d87b5446fa1..02c8267e45e 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -195,7 +195,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_fdatasync
 	PTR	sys_truncate
 	PTR	sys_ftruncate			/* 6075 */
-	PTR	sys32_getdents
+	PTR	compat_sys_getdents
 	PTR	sys_getcwd
 	PTR	sys_chdir
 	PTR	sys_fchdir
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 5b0414018c9..797e0d87488 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -293,7 +293,7 @@ sys_call_table:
 	PTR	sys_uselib
 	PTR	sys_swapon
 	PTR	sys_reboot
-	PTR	sys32_readdir
+	PTR	compat_sys_old_readdir
 	PTR	old_mmap			/* 4090 */
 	PTR	sys_munmap
 	PTR	sys_truncate
@@ -345,7 +345,7 @@ sys_call_table:
 	PTR	sys_setfsuid
 	PTR	sys_setfsgid
 	PTR	sys32_llseek			/* 4140 */
-	PTR	sys32_getdents
+	PTR	compat_sys_getdents
 	PTR	compat_sys_select
 	PTR	sys_flock
 	PTR	sys_msync
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index d86affa2127..d9293c558e4 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -540,6 +540,9 @@ void __init setup_arch(char **cmdline_p)
 	sparse_init();
 	paging_init();
 	resource_init();
+#ifdef CONFIG_SMP
+	plat_smp_setup();
+#endif
 }
 
 int __init fpu_disable(char *s)
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 5e189862e52..06ed9075242 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -236,7 +236,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 	init_new_context(current, &init_mm);
 	current_thread_info()->cpu = 0;
 	smp_tune_scheduling();
-	prom_prepare_cpus(max_cpus);
+	plat_prepare_cpus(max_cpus);
 }
 
 /* preload SMP state for boot cpu */
diff --git a/arch/mips/kernel/smp_mt.c b/arch/mips/kernel/smp_mt.c
index c930364830d..993b8bf56aa 100644
--- a/arch/mips/kernel/smp_mt.c
+++ b/arch/mips/kernel/smp_mt.c
@@ -143,7 +143,7 @@ static struct irqaction irq_call = {
  * Make sure all CPU's are in a sensible state before we boot any of the
  * secondarys
  */
-void prom_prepare_cpus(unsigned int max_cpus)
+void plat_smp_setup(void)
 {
 	unsigned long val;
 	int i, num;
@@ -179,11 +179,9 @@ void prom_prepare_cpus(unsigned int max_cpus)
 				write_vpe_c0_vpeconf0(tmp);
 
 				/* Record this as available CPU */
-				if (i < max_cpus) {
-					cpu_set(i, phys_cpu_present_map);
-					__cpu_number_map[i]	= ++num;
-					__cpu_logical_map[num]	= i;
-				}
+				cpu_set(i, phys_cpu_present_map);
+				__cpu_number_map[i]	= ++num;
+				__cpu_logical_map[num]	= i;
 			}
 
 			/* disable multi-threading with TC's */
@@ -241,7 +239,10 @@ void prom_prepare_cpus(unsigned int max_cpus)
 		set_vi_handler (MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch);
 		set_vi_handler (MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch);
 	}
+}
 
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
 	cpu_ipi_resched_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_RESCHED_IRQ;
 	cpu_ipi_call_irq = MIPSCPU_INT_BASE + MIPS_CPU_IPI_CALL_IRQ;
 
diff --git a/arch/mips/lib/iomap.c b/arch/mips/lib/iomap.c
index 7e2ced715cf..f4ac5bbcd81 100644
--- a/arch/mips/lib/iomap.c
+++ b/arch/mips/lib/iomap.c
@@ -63,7 +63,7 @@ void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
 		return ioport_map(start, len);
 	if (flags & IORESOURCE_MEM) {
 		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap_cacheable_cow(start, len);
+			return ioremap_cachable(start, len);
 		return ioremap_nocache(start, len);
 	}
 
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index 1b71d91e826..0668e9bfce4 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -235,7 +235,9 @@ static inline void r4k_blast_scache_page_setup(void)
 {
 	unsigned long sc_lsize = cpu_scache_line_size();
 
-	if (sc_lsize == 16)
+	if (scache_size == 0)
+		r4k_blast_scache_page = (void *)no_sc_noop;
+	else if (sc_lsize == 16)
 		r4k_blast_scache_page = blast_scache16_page;
 	else if (sc_lsize == 32)
 		r4k_blast_scache_page = blast_scache32_page;
@@ -251,7 +253,9 @@ static inline void r4k_blast_scache_page_indexed_setup(void)
 {
 	unsigned long sc_lsize = cpu_scache_line_size();
 
-	if (sc_lsize == 16)
+	if (scache_size == 0)
+		r4k_blast_scache_page_indexed = (void *)no_sc_noop;
+	else if (sc_lsize == 16)
 		r4k_blast_scache_page_indexed = blast_scache16_page_indexed;
 	else if (sc_lsize == 32)
 		r4k_blast_scache_page_indexed = blast_scache32_page_indexed;
@@ -267,7 +271,9 @@ static inline void r4k_blast_scache_setup(void)
 {
 	unsigned long sc_lsize = cpu_scache_line_size();
 
-	if (sc_lsize == 16)
+	if (scache_size == 0)
+		r4k_blast_scache = (void *)no_sc_noop;
+	else if (sc_lsize == 16)
 		r4k_blast_scache = blast_scache16;
 	else if (sc_lsize == 32)
 		r4k_blast_scache = blast_scache32;
@@ -482,7 +488,7 @@ static inline void local_r4k_flush_icache_range(void *args)
 			protected_blast_dcache_range(start, end);
 		}
 
-		if (!cpu_icache_snoops_remote_store) {
+		if (!cpu_icache_snoops_remote_store && scache_size) {
 			if (end - start > scache_size)
 				r4k_blast_scache();
 			else
@@ -651,7 +657,7 @@ static void local_r4k_flush_cache_sigtramp(void * arg)
 
 	R4600_HIT_CACHEOP_WAR_IMPL;
 	protected_writeback_dcache_line(addr & ~(dc_lsize - 1));
-	if (!cpu_icache_snoops_remote_store)
+	if (!cpu_icache_snoops_remote_store && scache_size)
 		protected_writeback_scache_line(addr & ~(sc_lsize - 1));
 	protected_flush_icache_line(addr & ~(ic_lsize - 1));
 	if (MIPS4K_ICACHE_REFILL_WAR) {
diff --git a/arch/mips/pmc-sierra/yosemite/smp.c b/arch/mips/pmc-sierra/yosemite/smp.c
index 7f8fda96219..c197311e15d 100644
--- a/arch/mips/pmc-sierra/yosemite/smp.c
+++ b/arch/mips/pmc-sierra/yosemite/smp.c
@@ -50,37 +50,25 @@ void __init prom_grab_secondary(void)
  * We don't want to start the secondary CPU yet nor do we have a nice probing
  * feature in PMON so we just assume presence of the secondary core.
  */
-static char maxcpus_string[] __initdata =
-	KERN_WARNING "max_cpus set to 0; using 1 instead\n";
-
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
 {
-	int enabled = 0, i;
-
-	if (max_cpus == 0) {
-		printk(maxcpus_string);
-		max_cpus = 1;
-	}
+	int i;
 
 	cpus_clear(phys_cpu_present_map);
 
 	for (i = 0; i < 2; i++) {
-		if (i == max_cpus)
-			break;
-
-		/*
-		 * The boot CPU
-		 */
 		cpu_set(i, phys_cpu_present_map);
 		__cpu_number_map[i]	= i;
 		__cpu_logical_map[i]	= i;
-		enabled++;
 	}
+}
 
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
 	/*
 	 * Be paranoid.  Enable the IPI only if we're really about to go SMP.
 	 */
-	if (enabled > 1)
+	if (cpus_weight(cpu_possible_map))
 		set_c0_status(STATUSF_IP5);
 }
 
diff --git a/arch/mips/sgi-ip27/ip27-smp.c b/arch/mips/sgi-ip27/ip27-smp.c
index dbef3f6b565..09fa7f5216f 100644
--- a/arch/mips/sgi-ip27/ip27-smp.c
+++ b/arch/mips/sgi-ip27/ip27-smp.c
@@ -140,7 +140,7 @@ static __init void intr_clear_all(nasid_t nasid)
 		REMOTE_HUB_CLR_INTR(nasid, i);
 }
 
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
 {
 	cnodeid_t	cnode;
 
@@ -161,6 +161,11 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
 	alloc_cpupda(0, 0);
 }
 
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
+	/* We already did everything necessary earlier */
+}
+
 /*
  * Launch a slave into smp_bootstrap().  It doesn't take an argument, and we
  * set sp to the kernel stack of the newly created idle process, gp to the proc
diff --git a/arch/mips/sibyte/cfe/smp.c b/arch/mips/sibyte/cfe/smp.c
index 4477af3d807..eab20e2db32 100644
--- a/arch/mips/sibyte/cfe/smp.c
+++ b/arch/mips/sibyte/cfe/smp.c
@@ -31,7 +31,7 @@
  *
  * Common setup before any secondaries are started
  */
-void __init prom_prepare_cpus(unsigned int max_cpus)
+void __init plat_smp_setup(void)
 {
 	int i, num;
 
@@ -40,14 +40,18 @@ void __init prom_prepare_cpus(unsigned int max_cpus)
 	__cpu_number_map[0] = 0;
 	__cpu_logical_map[0] = 0;
 
-	for (i=1, num=0; i<NR_CPUS; i++) {
+	for (i = 1, num = 0; i < NR_CPUS; i++) {
 		if (cfe_cpu_stop(i) == 0) {
 			cpu_set(i, phys_cpu_present_map);
 			__cpu_number_map[i] = ++num;
 			__cpu_logical_map[num] = i;
 		}
 	}
-	printk("Detected %i available secondary CPU(s)\n", num);
+	printk(KERN_INFO "Detected %i available secondary CPU(s)\n", num);
+}
+
+void __init plat_prepare_cpus(unsigned int max_cpus)
+{
 }
 
 /*