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] Fix aliasing bug in copy_user_highpage.
  [MIPS] IP22: fix wrong argument order
  [MIPS] IP22: Fix wrong check for second HPC
  [MIPS] Ocelot: remove remaining bits
  [MIPS] TLB: Fix instruction bitmasks
  [MIPS] R10000: Fix wrong test in dma-default.c
  [MIPS] Provide empty irq_enable_hazard definition for legacy and R1 cores.
  [MIPS] Sibyte: Remove broken dependency on EXPERIMENTAL from SIBYTE_SB1xxx_SOC.
  [MIPS] Kconfig: whitespace cleanup.
  [MIPS] PCI: Set need_domain_info if controller domain index is non-zero.
  [MIPS] BCM1480: Fix computation of interrupt mask address register.
  [MIPS] i8259: Add disable method.
  [MIPS] tty: add the new ioctls and definitions.

arch/mips/mm/init.c

@@ -8,6 +8,7 @@
  * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
  */
+#include <linux/bug.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/signal.h>
@@ -132,6 +133,8 @@ void *kmap_coherent(struct page *page, unsigned long addr)
 	pte_t pte;
 	int tlbidx;
 
+	BUG_ON(Page_dcache_dirty(page));
+
 	inc_preempt_count();
 	idx = (addr >> PAGE_SHIFT) & (FIX_N_COLOURS - 1);
 #ifdef CONFIG_MIPS_MT_SMTC
@@ -208,7 +211,7 @@ void copy_user_highpage(struct page *to, struct page *from,
 	void *vfrom, *vto;
 
 	vto = kmap_atomic(to, KM_USER1);
-	if (cpu_has_dc_aliases) {
+	if (cpu_has_dc_aliases && !Page_dcache_dirty(from)) {
 		vfrom = kmap_coherent(from, vaddr);
 		copy_page(vto, vfrom);
 		kunmap_coherent();

arch/mips/sgi-ip22/ip22-platform.c

@@ -150,8 +150,8 @@ static int __init sgiseeq_devinit(void)
 		return res;
 
 	/* Second HPC is missing? */
-	if (ip22_is_fullhouse() ||
-	    !get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1]))
+	if (!ip22_is_fullhouse() ||
+	    get_dbe(tmp, (unsigned int *)&hpc3c1->pbdma[1]))
 		return 0;
 
 	sgimc->giopar |= SGIMC_GIOPAR_MASTEREXP1 | SGIMC_GIOPAR_EXP164 |

arch/mips/sgi-ip22/ip22-time.c

@@ -114,8 +114,8 @@ static unsigned long dosample(void)
 	} while (msb);
 
 	/* Stop the counter. */
-	writeb(sgint->tcword, (SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL |
-			       SGINT_TCWORD_MSWST));
+	writeb(SGINT_TCWORD_CNT2 | SGINT_TCWORD_CALL | SGINT_TCWORD_MSWST,
+	       &sgint->tcword);
 	/*
 	 * Return the difference, this is how far the r4k counter increments
 	 * for every 1/HZ seconds. We round off the nearest 1 MHz of master