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] BCM47XX: Use new SSB SPROM data structure
  [MIPS] WGT634U: Register MTD as platform device.
  [MIPS] BCM47xx: Add defconfig file.
  [MIPS] RM: fix EISA=n compilation
  [MIPS] PCI: Coding style fixes for pcibios_enable_resources.
  [MIPS] PCI: Port i386 PCI fixes.
  [MIPS] Qemu: finish platform removal
  [MIPS] Wire up the timerfd_*() o32 system calls
  [MIPS] IP28: Add defconfig file
  [MIPS] SB1: Fix CONFIG_SIBYTE_DMA_PAGEOPS build failure.
  [MIPS] BCM1480: Remove stray function call resulting in infinite recursion
  [MIPS] Fix buggy invocations of kmap_coherent()
  [MIPS] Fix broken rm7000/rm9000 interrupt handling
  [MIPS] Handle I-cache coherency in flush_cache_range()
  [MIPS] IP27: Add missing ~ in DMA code.
  [MIPS] Use find_task_by_vpid in system calls

arch/mips/bcm47xx/setup.c

@@ -92,17 +92,17 @@ static int bcm47xx_get_invariants(struct ssb_bus *bus,
 	iv->sprom.revision = 3;
 
 	if (cfe_getenv("et0macaddr", buf, sizeof(buf)) >= 0)
-		str2eaddr(buf, iv->sprom.r1.et0mac);
+		str2eaddr(buf, iv->sprom.et0mac);
 	if (cfe_getenv("et1macaddr", buf, sizeof(buf)) >= 0)
-		str2eaddr(buf, iv->sprom.r1.et1mac);
+		str2eaddr(buf, iv->sprom.et1mac);
 	if (cfe_getenv("et0phyaddr", buf, sizeof(buf)) >= 0)
-		iv->sprom.r1.et0phyaddr = simple_strtoul(buf, NULL, 10);
+		iv->sprom.et0phyaddr = simple_strtoul(buf, NULL, 10);
 	if (cfe_getenv("et1phyaddr", buf, sizeof(buf)) >= 0)
-		iv->sprom.r1.et1phyaddr = simple_strtoul(buf, NULL, 10);
+		iv->sprom.et1phyaddr = simple_strtoul(buf, NULL, 10);
 	if (cfe_getenv("et0mdcport", buf, sizeof(buf)) >= 0)
-		iv->sprom.r1.et0mdcport = simple_strtoul(buf, NULL, 10);
+		iv->sprom.et0mdcport = simple_strtoul(buf, NULL, 10);
 	if (cfe_getenv("et1mdcport", buf, sizeof(buf)) >= 0)
-		iv->sprom.r1.et1mdcport = simple_strtoul(buf, NULL, 10);
+		iv->sprom.et1mdcport = simple_strtoul(buf, NULL, 10);
 
 	return 0;
 }

arch/mips/bcm47xx/wgt634u.c

@@ -9,6 +9,7 @@
 #include <linux/platform_device.h>
 #include <linux/module.h>
 #include <linux/leds.h>
+#include <linux/mtd/physmap.h>
 #include <linux/ssb/ssb.h>
 #include <asm/mach-bcm47xx/bcm47xx.h>
 
@@ -43,6 +44,61 @@ static struct platform_device wgt634u_gpio_leds = {
 	}
 };
 
+
+/* 8MiB flash. The struct mtd_partition matches original Netgear WGT634U
+   firmware. */
+static struct mtd_partition wgt634u_partitions[] = {
+	{
+		.name       = "cfe",
+		.offset     = 0,
+		.size       = 0x60000,		/* 384k */
+		.mask_flags = MTD_WRITEABLE 	/* force read-only */
+	},
+	{
+		.name   = "config",
+		.offset = 0x60000,
+		.size   = 0x20000		/* 128k */
+	},
+	{
+		.name   = "linux",
+		.offset = 0x80000,
+		.size   = 0x140000 		/* 1280k */
+	},
+	{
+		.name   = "jffs",
+		.offset = 0x1c0000,
+		.size   = 0x620000 		/* 6272k */
+	},
+	{
+		.name   = "nvram",
+		.offset = 0x7e0000,
+		.size   = 0x20000		/* 128k */
+	},
+};
+
+static struct physmap_flash_data wgt634u_flash_data = {
+	.parts    = wgt634u_partitions,
+	.nr_parts = ARRAY_SIZE(wgt634u_partitions)
+};
+
+static struct resource wgt634u_flash_resource = {
+	.flags = IORESOURCE_MEM,
+};
+
+static struct platform_device wgt634u_flash = {
+	.name          = "physmap-flash",
+	.id            = 0,
+	.dev           = { .platform_data = &wgt634u_flash_data, },
+	.resource      = &wgt634u_flash_resource,
+	.num_resources = 1,
+};
+
+/* Platform devices */
+static struct platform_device *wgt634u_devices[] __initdata = {
+	&wgt634u_flash,
+	&wgt634u_gpio_leds,
+};
+
 static int __init wgt634u_init(void)
 {
 	/* There is no easy way to detect that we are running on a WGT634U
@@ -50,13 +106,20 @@ static int __init wgt634u_init(void)
 	 * been allocated ranges 00:09:5b:xx:xx:xx and 00:0f:b5:xx:xx:xx.
 	 */
 
-	u8 *et0mac = ssb_bcm47xx.sprom.r1.et0mac;
+	u8 *et0mac = ssb_bcm47xx.sprom.et0mac;
 
 	if (et0mac[0] == 0x00 &&
 	    ((et0mac[1] == 0x09 && et0mac[2] == 0x5b) ||
-	     (et0mac[1] == 0x0f && et0mac[2] == 0xb5)))
-		return platform_device_register(&wgt634u_gpio_leds);
-	else
+	     (et0mac[1] == 0x0f && et0mac[2] == 0xb5))) {
+		struct ssb_mipscore *mcore = &ssb_bcm47xx.mipscore;
+		wgt634u_flash_data.width = mcore->flash_buswidth;
+		wgt634u_flash_resource.start = mcore->flash_window;
+		wgt634u_flash_resource.end = mcore->flash_window
+					   + mcore->flash_window_size
+					   - 1;
+		return platform_add_devices(wgt634u_devices,
+					    ARRAY_SIZE(wgt634u_devices));
+	} else
 		return -ENODEV;
 }
 

arch/mips/kernel/irq-rm7000.c

@@ -33,6 +33,7 @@ static struct irq_chip rm7k_irq_controller = {
 	.mask = mask_rm7k_irq,
 	.mask_ack = mask_rm7k_irq,
 	.unmask = unmask_rm7k_irq,
+	.eoi	= unmask_rm7k_irq
 };
 
 void __init rm7k_cpu_irq_init(void)

arch/mips/kernel/irq-rm9000.c

@@ -75,6 +75,7 @@ static struct irq_chip rm9k_irq_controller = {
 	.mask = mask_rm9k_irq,
 	.mask_ack = mask_rm9k_irq,
 	.unmask = unmask_rm9k_irq,
+	.eoi	= unmask_rm9k_irq
 };
 
 static struct irq_chip rm9k_perfcounter_irq = {

arch/mips/kernel/mips-mt-fpaff.c

@@ -36,7 +36,7 @@ unsigned long mt_fpemul_threshold = 0;
  */
 static inline struct task_struct *find_process_by_pid(pid_t pid)
 {
-	return pid ? find_task_by_pid(pid) : current;
+	return pid ? find_task_by_vpid(pid) : current;
 }
 
 

arch/mips/kernel/scall32-o32.S

@@ -663,6 +663,9 @@ einval:	li	v0, -EINVAL
 	sys	sys_ni_syscall		0
 	sys	sys_eventfd		1
 	sys	sys_fallocate		6	/* 4320 */
+	sys	sys_timerfd_create	2
+	sys	sys_timerfd_gettime	2
+	sys	sys_timerfd_settime	4
 	.endm
 
 	/* We pre-compute the number of _instruction_ bytes needed to

arch/mips/kernel/scall64-64.S

@@ -478,4 +478,7 @@ sys_call_table:
 	PTR	sys_ni_syscall
 	PTR	sys_eventfd
 	PTR	sys_fallocate
+	PTR	sys_timerfd_create		/* 5280 */
+	PTR	sys_timerfd_gettime
+	PTR	sys_timerfd_settime
 	.size	sys_call_table,.-sys_call_table

arch/mips/kernel/scall64-n32.S

@@ -404,4 +404,7 @@ EXPORT(sysn32_call_table)
 	PTR	sys_ni_syscall
 	PTR	sys_eventfd
 	PTR	sys_fallocate
+	PTR	sys_timerfd_create
+	PTR	sys_timerfd_gettime		/* 5285 */
+	PTR	sys_timerfd_settime
 	.size	sysn32_call_table,.-sysn32_call_table

arch/mips/kernel/scall64-o32.S

@@ -526,4 +526,7 @@ sys_call_table:
 	PTR	sys_ni_syscall
 	PTR	sys_eventfd
 	PTR	sys32_fallocate			/* 4320 */
+	PTR	sys_timerfd_create
+	PTR	sys_timerfd_gettime
+	PTR	sys_timerfd_settime
 	.size	sys_call_table,.-sys_call_table

arch/mips/kernel/sysirix.c

@@ -111,7 +111,7 @@ asmlinkage int irix_prctl(unsigned option, ...)
 		printk("irix_prctl[%s:%d]: Wants PR_ISBLOCKED\n",
 		       current->comm, current->pid);
 		read_lock(&tasklist_lock);
-		task = find_task_by_pid(va_arg(args, pid_t));
+		task = find_task_by_vpid(va_arg(args, pid_t));
 		error = -ESRCH;
 		if (error)
 			error = (task->run_list.next != NULL);

arch/mips/mm/c-r4k.c

@@ -364,19 +364,22 @@ static inline int has_valid_asid(const struct mm_struct *mm)
 static inline void local_r4k_flush_cache_range(void * args)
 {
 	struct vm_area_struct *vma = args;
+	int exec = vma->vm_flags & VM_EXEC;
 
 	if (!(has_valid_asid(vma->vm_mm)))
 		return;
 
 	r4k_blast_dcache();
+	if (exec)
+		r4k_blast_icache();
 }
 
 static void r4k_flush_cache_range(struct vm_area_struct *vma,
 	unsigned long start, unsigned long end)
 {
-	if (!cpu_has_dc_aliases)
-		return;
+	int exec = vma->vm_flags & VM_EXEC;
 
+	if (cpu_has_dc_aliases || (exec && !cpu_has_ic_fills_f_dc))
 		r4k_on_each_cpu(local_r4k_flush_cache_range, vma, 1, 1);
 }
 

arch/mips/mm/cache.c

@@ -92,12 +92,17 @@ EXPORT_SYMBOL(__flush_dcache_page);
 
 void __flush_anon_page(struct page *page, unsigned long vmaddr)
 {
-	if (pages_do_alias((unsigned long)page_address(page), vmaddr)) {
+	unsigned long addr = (unsigned long) page_address(page);
+
+	if (pages_do_alias(addr, vmaddr)) {
+		if (page_mapped(page) && !Page_dcache_dirty(page)) {
 			void *kaddr;
 
 			kaddr = kmap_coherent(page, vmaddr);
 			flush_data_cache_page((unsigned long)kaddr);
 			kunmap_coherent();
+		} else
+			flush_data_cache_page(addr);
 	}
 }
 

arch/mips/mm/init.c

@@ -211,7 +211,8 @@ void copy_user_highpage(struct page *to, struct page *from,
 	void *vfrom, *vto;
 
 	vto = kmap_atomic(to, KM_USER1);
-	if (cpu_has_dc_aliases && page_mapped(from)) {
+	if (cpu_has_dc_aliases &&
+	    page_mapped(from) && !Page_dcache_dirty(from)) {
 		vfrom = kmap_coherent(from, vaddr);
 		copy_page(vto, vfrom);
 		kunmap_coherent();
@@ -234,7 +235,8 @@ void copy_to_user_page(struct vm_area_struct *vma,
 	struct page *page, unsigned long vaddr, void *dst, const void *src,
 	unsigned long len)
 {
-	if (cpu_has_dc_aliases && page_mapped(page)) {
+	if (cpu_has_dc_aliases &&
+	    page_mapped(page) && !Page_dcache_dirty(page)) {
 		void *vto = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
 		memcpy(vto, src, len);
 		kunmap_coherent();
@@ -253,7 +255,8 @@ void copy_from_user_page(struct vm_area_struct *vma,
 	struct page *page, unsigned long vaddr, void *dst, const void *src,
 	unsigned long len)
 {
-	if (cpu_has_dc_aliases && page_mapped(page)) {
+	if (cpu_has_dc_aliases &&
+	    page_mapped(page) && !Page_dcache_dirty(page)) {
 		void *vfrom = kmap_coherent(page, vaddr) + (vaddr & ~PAGE_MASK);
 		memcpy(dst, vfrom, len);
 		kunmap_coherent();

arch/mips/mm/pg-sb1.c

@@ -216,7 +216,7 @@ void sb1_dma_init(void)
 	int i;
 
 	for (i = 0; i < DM_NUM_CHANNELS; i++) {
-		const u64 base_val = CPHYSADDR(&page_descr[i]) |
+		const u64 base_val = CPHYSADDR((unsigned long)&page_descr[i]) |
 				     V_DM_DSCR_BASE_RINGSZ(1);
 		void *base_reg = IOADDR(A_DM_REGISTER(i, R_DM_DSCR_BASE));
 
@@ -228,11 +228,11 @@ void sb1_dma_init(void)
 
 void clear_page(void *page)
 {
-	u64 to_phys = CPHYSADDR(page);
+	u64 to_phys = CPHYSADDR((unsigned long)page);
 	unsigned int cpu = smp_processor_id();
 
 	/* if the page is not in KSEG0, use old way */
-	if ((long)KSEGX(page) != (long)CKSEG0)
+	if ((long)KSEGX((unsigned long)page) != (long)CKSEG0)
 		return clear_page_cpu(page);
 
 	page_descr[cpu].dscr_a = to_phys | M_DM_DSCRA_ZERO_MEM |
@@ -252,13 +252,13 @@ void clear_page(void *page)
 
 void copy_page(void *to, void *from)
 {
-	u64 from_phys = CPHYSADDR(from);
-	u64 to_phys = CPHYSADDR(to);
+	u64 from_phys = CPHYSADDR((unsigned long)from);
+	u64 to_phys = CPHYSADDR((unsigned long)to);
 	unsigned int cpu = smp_processor_id();
 
 	/* if any page is not in KSEG0, use old way */
-	if ((long)KSEGX(to) != (long)CKSEG0
-	    || (long)KSEGX(from) != (long)CKSEG0)
+	if ((long)KSEGX((unsigned long)to) != (long)CKSEG0
+	    || (long)KSEGX((unsigned long)from) != (long)CKSEG0)
 		return copy_page_cpu(to, from);
 
 	page_descr[cpu].dscr_a = to_phys | M_DM_DSCRA_L2C_DEST |

arch/mips/pci/pci.c

@@ -177,8 +177,15 @@ static int pcibios_enable_resources(struct pci_dev *dev, int mask)
 			continue;
 
 		r = &dev->resource[idx];
+		if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM)))
+			continue;
+		if ((idx == PCI_ROM_RESOURCE) &&
+				(!(r->flags & IORESOURCE_ROM_ENABLE)))
+			continue;
 		if (!r->start && r->end) {
-			printk(KERN_ERR "PCI: Device %s not available because of resource collisions\n", pci_name(dev));
+			printk(KERN_ERR "PCI: Device %s not available "
+			       "because of resource collisions\n",
+			       pci_name(dev));
 			return -EINVAL;
 		}
 		if (r->flags & IORESOURCE_IO)
@@ -186,10 +193,9 @@ static int pcibios_enable_resources(struct pci_dev *dev, int mask)
 		if (r->flags & IORESOURCE_MEM)
 			cmd |= PCI_COMMAND_MEMORY;
 	}
-	if (dev->resource[PCI_ROM_RESOURCE].start)
-		cmd |= PCI_COMMAND_MEMORY;
 	if (cmd != old_cmd) {
-		printk("PCI: Enabling device %s (%04x -> %04x)\n", pci_name(dev), old_cmd, cmd);
+		printk("PCI: Enabling device %s (%04x -> %04x)\n",
+		       pci_name(dev), old_cmd, cmd);
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 	}
 	return 0;

arch/mips/sibyte/bcm1480/smp.c

@@ -110,7 +110,6 @@ static void __cpuinit bcm1480_smp_finish(void)
 
 	sb1480_clockevent_init();
 	local_irq_enable();
-	bcm1480_smp_finish();
 }
 
 /*

include/asm-mips/mach-ip27/dma-coherence.h

@@ -35,7 +35,7 @@ static dma_addr_t plat_map_dma_mem_page(struct device *dev, struct page *page)
 
 static unsigned long plat_dma_addr_to_phys(dma_addr_t dma_addr)
 {
-	return dma_addr & (0xffUL << 56);
+	return dma_addr & ~(0xffUL << 56);
 }
 
 static inline void plat_unmap_dma_mem(dma_addr_t dma_addr)

include/asm-mips/qemu.h

-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2005 by Ralf Baechle (ralf@linux-mips.org)
- */
-#ifndef __ASM_QEMU_H
-#define __ASM_QEMU_H
-
-/*
- * Interrupt numbers
- */
-#define Q_PIC_IRQ_BASE		0
-#define Q_COUNT_COMPARE_IRQ	23
-
-/*
- * Qemu clock rate.  Unlike on real MIPS this has no relation to the
- * instruction issue rate, so the choosen value is pure fiction, just needs
- * to match the value in Qemu itself.
- */
-#define QEMU_C0_COUNTER_CLOCK	100000000
-
-/*
- * Magic qemu system control location.
- */
-#define QEMU_RESTART_REG	0xBFBF0000
-#define QEMU_HALT_REG		0xBFBF0004
-
-#endif /* __ASM_QEMU_H */

include/asm-mips/sni.h

@@ -228,7 +228,14 @@ extern void sni_pcimt_irq_init(void);
 extern void sni_cpu_time_init(void);
 
 /* eisa init for RM200/400 */
+#ifdef CONFIG_EISA
 extern int sni_eisa_root_init(void);
+#else
+static inline int sni_eisa_root_init(void)
+{
+	return 0;
+}
+#endif
 
 /* common irq stuff */
 extern void (*sni_hwint)(void);

include/asm-mips/unistd.h

@@ -341,16 +341,19 @@
 #define __NR_timerfd			(__NR_Linux + 318)
 #define __NR_eventfd			(__NR_Linux + 319)
 #define __NR_fallocate			(__NR_Linux + 320)
+#define __NR_timerfd_create		(__NR_Linux + 321)
+#define __NR_timerfd_gettime		(__NR_Linux + 322)
+#define __NR_timerfd_settime		(__NR_Linux + 323)
 
 /*
  * Offset of the last Linux o32 flavoured syscall
  */
-#define __NR_Linux_syscalls		320
+#define __NR_Linux_syscalls		323
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
 
 #define __NR_O32_Linux			4000
-#define __NR_O32_Linux_syscalls		320
+#define __NR_O32_Linux_syscalls		323
 
 #if _MIPS_SIM == _MIPS_SIM_ABI64
 
@@ -638,16 +641,19 @@
 #define __NR_timerfd			(__NR_Linux + 277)
 #define __NR_eventfd			(__NR_Linux + 278)
 #define __NR_fallocate			(__NR_Linux + 279)
+#define __NR_timerfd_create		(__NR_Linux + 280)
+#define __NR_timerfd_gettime		(__NR_Linux + 281)
+#define __NR_timerfd_settime		(__NR_Linux + 282)
 
 /*
  * Offset of the last Linux 64-bit flavoured syscall
  */
-#define __NR_Linux_syscalls		279
+#define __NR_Linux_syscalls		282
 
 #endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
 
 #define __NR_64_Linux			5000
-#define __NR_64_Linux_syscalls		279
+#define __NR_64_Linux_syscalls		282
 
 #if _MIPS_SIM == _MIPS_SIM_NABI32
 
@@ -939,16 +945,19 @@
 #define __NR_timerfd			(__NR_Linux + 281)
 #define __NR_eventfd			(__NR_Linux + 282)
 #define __NR_fallocate			(__NR_Linux + 283)
+#define __NR_timerfd_create		(__NR_Linux + 284)
+#define __NR_timerfd_gettime		(__NR_Linux + 285)
+#define __NR_timerfd_settime		(__NR_Linux + 286)
 
 /*
  * Offset of the last N32 flavoured syscall
  */
-#define __NR_Linux_syscalls		283
+#define __NR_Linux_syscalls		286
 
 #endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
 
 #define __NR_N32_Linux			6000
-#define __NR_N32_Linux_syscalls		283
+#define __NR_N32_Linux_syscalls		286
 
 #ifdef __KERNEL__