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] Treat R14000 like R10000.
  [MIPS] Remove EXPERIMENTAL from PAGE_SIZE_16KB
  [MIPS] Update/Fix instruction definitions
  [MIPS] DSP and MDMX share the same config flag bit.
  [MIPS] Fix deadlock on MP with cache aliases.
  [MIPS] Use generic STABS_DEBUG macro.
  [MIPS] Create consistency in "system type" selection.
  [MIPS] Use generic DWARF_DEBUG
  [MIPS] Fix kgdb exception handler from user mode.
  [MIPS] Update struct sigcontext member names
  [MIPS] Update/fix futex assembly
  [MIPS] Remove support for sysmips(2) SETNAME and MIPS_RDNVRAM operations.
  [MIPS] Fix detection and handling of the 74K processor.
  [MIPS] Add missing 34K processor IDs
  [MIPS] Fix marking buddy of pte global for MIPS32 w/36-bit physical address
  [MIPS] AU1xxx mips_timer_interrupt() fixes
  [MIPS] Fix typo

6 files changed, 207 insertions, 73 deletions

diff --git a/include/asm-mips/cpu.h b/include/asm-mips/cpu.h
index 818b9a9..dff2a0a 100644
--- a/include/asm-mips/cpu.h
+++ b/include/asm-mips/cpu.h
@@ -51,6 +51,7 @@
 #define PRID_IMP_R4300		0x0b00
 #define PRID_IMP_VR41XX		0x0c00
 #define PRID_IMP_R12000		0x0e00
+#define PRID_IMP_R14000		0x0f00
 #define PRID_IMP_R8000		0x1000
 #define PRID_IMP_PR4450		0x1200
 #define PRID_IMP_R4600		0x2000
@@ -87,6 +88,7 @@
 #define PRID_IMP_24K		0x9300
 #define PRID_IMP_34K		0x9500
 #define PRID_IMP_24KE		0x9600
+#define PRID_IMP_74K		0x9700
 
 /*
  * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE
@@ -196,7 +198,9 @@
 #define CPU_34K			60
 #define CPU_PR4450		61
 #define CPU_SB1A		62
-#define CPU_LAST		62
+#define CPU_74K			63
+#define CPU_R14000		64
+#define CPU_LAST		64
 
 /*
  * ISA Level encodings
diff --git a/include/asm-mips/futex.h b/include/asm-mips/futex.h
index a554089..12d118f 100644
--- a/include/asm-mips/futex.h
+++ b/include/asm-mips/futex.h
@@ -7,6 +7,7 @@
 #include <linux/futex.h>
 #include <asm/errno.h>
 #include <asm/uaccess.h>
+#include <asm/war.h>
 
 #ifdef CONFIG_SMP
 #define __FUTEX_SMP_SYNC "	sync					\n"
@@ -16,30 +17,58 @@
 
 #define __futex_atomic_op(insn, ret, oldval, uaddr, oparg)		\
 {									\
-	__asm__ __volatile__(						\
-	"	.set	push					\n"	\
-	"	.set	noat					\n"	\
-	"	.set	mips3					\n"	\
-	"1:	ll	%1, (%3)	# __futex_atomic_op1	\n"	\
-	"	.set	mips0					\n"	\
-	"	" insn	"					\n"	\
-	"	.set	mips3					\n"	\
-	"2:	sc	$1, (%3)				\n"	\
-	"	beqzl	$1, 1b					\n"	\
-	__FUTEX_SMP_SYNC						\
-	"3:							\n"	\
-	"	.set	pop					\n"	\
-	"	.set	mips0					\n"	\
-	"	.section .fixup,\"ax\"				\n"	\
-	"4:	li	%0, %5					\n"	\
-	"	j	2b					\n"	\
-	"	.previous					\n"	\
-	"	.section __ex_table,\"a\"			\n"	\
-	"	"__UA_ADDR "\t1b, 4b				\n"	\
-	"	"__UA_ADDR "\t2b, 4b				\n"	\
-	"	.previous					\n"	\
-	: "=r" (ret), "=r" (oldval)					\
-	: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));		\
+	if (cpu_has_llsc && R10000_LLSC_WAR) {				\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	mips3				\n"	\
+		"1:	ll	%1, (%3)	# __futex_atomic_op	\n" \
+		"	.set	mips0				\n"	\
+		"	" insn	"				\n"	\
+		"	.set	mips3				\n"	\
+		"2:	sc	$1, (%3)			\n"	\
+		"	beqzl	$1, 1b				\n"	\
+		__FUTEX_SMP_SYNC					\
+		"3:						\n"	\
+		"	.set	pop				\n"	\
+		"	.set	mips0				\n"	\
+		"	.section .fixup,\"ax\"			\n"	\
+		"4:	li	%0, %5				\n"	\
+		"	j	2b				\n"	\
+		"	.previous				\n"	\
+		"	.section __ex_table,\"a\"		\n"	\
+		"	"__UA_ADDR "\t1b, 4b			\n"	\
+		"	"__UA_ADDR "\t2b, 4b			\n"	\
+		"	.previous				\n"	\
+		: "=r" (ret), "=r" (oldval)				\
+		: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));	\
+	} else if (cpu_has_llsc) {					\
+		__asm__ __volatile__(					\
+		"	.set	push				\n"	\
+		"	.set	noat				\n"	\
+		"	.set	mips3				\n"	\
+		"1:	ll	%1, (%3)	# __futex_atomic_op	\n" \
+		"	.set	mips0				\n"	\
+		"	" insn	"				\n"	\
+		"	.set	mips3				\n"	\
+		"2:	sc	$1, (%3)			\n"	\
+		"	beqz	$1, 1b				\n"	\
+		__FUTEX_SMP_SYNC					\
+		"3:						\n"	\
+		"	.set	pop				\n"	\
+		"	.set	mips0				\n"	\
+		"	.section .fixup,\"ax\"			\n"	\
+		"4:	li	%0, %5				\n"	\
+		"	j	2b				\n"	\
+		"	.previous				\n"	\
+		"	.section __ex_table,\"a\"		\n"	\
+		"	"__UA_ADDR "\t1b, 4b			\n"	\
+		"	"__UA_ADDR "\t2b, 4b			\n"	\
+		"	.previous				\n"	\
+		: "=r" (ret), "=r" (oldval)				\
+		: "0" (0), "r" (uaddr), "Jr" (oparg), "i" (-EFAULT));	\
+	} else								\
+		ret = -ENOSYS;						\
 }
 
 static inline int
@@ -102,7 +131,69 @@ futex_atomic_op_inuser (int encoded_op, int __user *uaddr)
 static inline int
 futex_atomic_cmpxchg_inatomic(int __user *uaddr, int oldval, int newval)
 {
-	return -ENOSYS;
+	int retval;
+
+	if (!access_ok(VERIFY_WRITE, uaddr, sizeof(int)))
+		return -EFAULT;
+
+	if (cpu_has_llsc && R10000_LLSC_WAR) {
+		__asm__ __volatile__(
+		"# futex_atomic_cmpxchg_inatomic			\n"
+		"	.set	push					\n"
+		"	.set	noat					\n"
+		"	.set	mips3					\n"
+		"1:	ll	%0, %2					\n"
+		"	bne	%0, %z3, 3f				\n"
+		"	.set	mips0					\n"
+		"	move	$1, %z4					\n"
+		"	.set	mips3					\n"
+		"2:	sc	$1, %1					\n"
+		"	beqzl	$1, 1b					\n"
+		__FUTEX_SMP_SYNC
+		"3:							\n"
+		"	.set	pop					\n"
+		"	.section .fixup,\"ax\"				\n"
+		"4:	li	%0, %5					\n"
+		"	j	3b					\n"
+		"	.previous					\n"
+		"	.section __ex_table,\"a\"			\n"
+		"	"__UA_ADDR "\t1b, 4b				\n"
+		"	"__UA_ADDR "\t2b, 4b				\n"
+		"	.previous					\n"
+		: "=&r" (retval), "=R" (*uaddr)
+		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "memory");
+	} else if (cpu_has_llsc) {
+		__asm__ __volatile__(
+		"# futex_atomic_cmpxchg_inatomic			\n"
+		"	.set	push					\n"
+		"	.set	noat					\n"
+		"	.set	mips3					\n"
+		"1:	ll	%0, %2					\n"
+		"	bne	%0, %z3, 3f				\n"
+		"	.set	mips0					\n"
+		"	move	$1, %z4					\n"
+		"	.set	mips3					\n"
+		"2:	sc	$1, %1					\n"
+		"	beqz	$1, 1b					\n"
+		__FUTEX_SMP_SYNC
+		"3:							\n"
+		"	.set	pop					\n"
+		"	.section .fixup,\"ax\"				\n"
+		"4:	li	%0, %5					\n"
+		"	j	3b					\n"
+		"	.previous					\n"
+		"	.section __ex_table,\"a\"			\n"
+		"	"__UA_ADDR "\t1b, 4b				\n"
+		"	"__UA_ADDR "\t2b, 4b				\n"
+		"	.previous					\n"
+		: "=&r" (retval), "=R" (*uaddr)
+		: "R" (*uaddr), "Jr" (oldval), "Jr" (newval), "i" (-EFAULT)
+		: "memory");
+	} else
+		return -ENOSYS;
+
+	return retval;
 }
 
 #endif
diff --git a/include/asm-mips/inst.h b/include/asm-mips/inst.h
index e0745f4..1ed8d0f 100644
--- a/include/asm-mips/inst.h
+++ b/include/asm-mips/inst.h
@@ -6,6 +6,7 @@
  * for more details.
  *
  * Copyright (C) 1996, 2000 by Ralf Baechle
+ * Copyright (C) 2006 by Thiemo Seufer
  */
 #ifndef _ASM_INST_H
 #define _ASM_INST_H
@@ -21,14 +22,14 @@ enum major_op {
 	cop0_op, cop1_op, cop2_op, cop1x_op,
 	beql_op, bnel_op, blezl_op, bgtzl_op,
 	daddi_op, daddiu_op, ldl_op, ldr_op,
-	major_1c_op, jalx_op, major_1e_op, major_1f_op,
+	spec2_op, jalx_op, mdmx_op, spec3_op,
 	lb_op, lh_op, lwl_op, lw_op,
 	lbu_op, lhu_op, lwr_op, lwu_op,
 	sb_op, sh_op, swl_op, sw_op,
 	sdl_op, sdr_op, swr_op, cache_op,
 	ll_op, lwc1_op, lwc2_op, pref_op,
 	lld_op, ldc1_op, ldc2_op, ld_op,
-	sc_op, swc1_op, swc2_op, rdhwr_op,
+	sc_op, swc1_op, swc2_op, major_3b_op,
 	scd_op, sdc1_op, sdc2_op, sd_op
 };
 
@@ -37,7 +38,7 @@ enum major_op {
  */
 enum spec_op {
 	sll_op, movc_op, srl_op, sra_op,
-	sllv_op, srlv_op, srav_op, spec1_unused_op, /* Opcode 0x07 is unused */
+	sllv_op, pmon_op, srlv_op, srav_op,
 	jr_op, jalr_op, movz_op, movn_op,
 	syscall_op, break_op, spim_op, sync_op,
 	mfhi_op, mthi_op, mflo_op, mtlo_op,
@@ -55,6 +56,28 @@ enum spec_op {
 };
 
 /*
+ * func field of spec2 opcode.
+ */
+enum spec2_op {
+	madd_op, maddu_op, mul_op, spec2_3_unused_op,
+	msub_op, msubu_op, /* more unused ops */
+	clz_op = 0x20, clo_op,
+	dclz_op = 0x24, dclo_op,
+	sdbpp_op = 0x3f
+};
+
+/*
+ * func field of spec3 opcode.
+ */
+enum spec3_op {
+	ext_op, dextm_op, dextu_op, dext_op,
+	ins_op, dinsm_op, dinsu_op, dins_op,
+	bshfl_op = 0x20,
+	dbshfl_op = 0x24,
+	rdhwr_op = 0x3f
+};
+
+/*
  * rt field of bcond opcodes.
  */
 enum rt_op {
@@ -151,8 +174,8 @@ enum cop1x_func {
  * func field for mad opcodes (MIPS IV).
  */
 enum mad_func {
-	madd_op      = 0x08, msub_op      = 0x0a,
-	nmadd_op     = 0x0c, nmsub_op     = 0x0e
+	madd_fp_op      = 0x08, msub_fp_op      = 0x0a,
+	nmadd_fp_op     = 0x0c, nmsub_fp_op     = 0x0e
 };
 
 /*
diff --git a/include/asm-mips/mipsregs.h b/include/asm-mips/mipsregs.h
index a2ef579..5af7517f 100644
--- a/include/asm-mips/mipsregs.h
+++ b/include/asm-mips/mipsregs.h
@@ -291,7 +291,7 @@
 #define ST0_DL			(_ULCAST_(1) << 24)
 
 /*
- * Enable the MIPS DSP ASE
+ * Enable the MIPS MDMX and DSP ASEs
  */
 #define ST0_MX			0x01000000
 
diff --git a/include/asm-mips/pgtable.h b/include/asm-mips/pgtable.h
index 702a28f..174a3cd 100644
--- a/include/asm-mips/pgtable.h
+++ b/include/asm-mips/pgtable.h
@@ -82,10 +82,11 @@ extern void paging_init(void);
 #define pmd_page(pmd)		(pfn_to_page(pmd_phys(pmd) >> PAGE_SHIFT))
 #define pmd_page_kernel(pmd)	pmd_val(pmd)
 
-#define pte_none(pte)		(!(pte_val(pte) & ~_PAGE_GLOBAL))
-#define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)
-
 #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
+
+#define pte_none(pte)		(!(((pte).pte_low | (pte).pte_high) & ~_PAGE_GLOBAL))
+#define pte_present(pte)	((pte).pte_low & _PAGE_PRESENT)
+
 static inline void set_pte(pte_t *ptep, pte_t pte)
 {
 	ptep->pte_high = pte.pte_high;
@@ -93,27 +94,35 @@ static inline void set_pte(pte_t *ptep, pte_t pte)
 	ptep->pte_low = pte.pte_low;
 	//printk("pte_high %x pte_low %x\n", ptep->pte_high, ptep->pte_low);
 
-	if (pte_val(pte) & _PAGE_GLOBAL) {
+	if (pte.pte_low & _PAGE_GLOBAL) {
 		pte_t *buddy = ptep_buddy(ptep);
 		/*
 		 * Make sure the buddy is global too (if it's !none,
 		 * it better already be global)
 		 */
-		if (pte_none(*buddy))
-			buddy->pte_low |= _PAGE_GLOBAL;
+		if (pte_none(*buddy)) {
+			buddy->pte_low  |= _PAGE_GLOBAL;
+			buddy->pte_high |= _PAGE_GLOBAL;
+		}
 	}
 }
 #define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
 
 static inline void pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep)
 {
+	pte_t null = __pte(0);
+
 	/* Preserve global status for the pair */
-	if (pte_val(*ptep_buddy(ptep)) & _PAGE_GLOBAL)
-		set_pte_at(mm, addr, ptep, __pte(_PAGE_GLOBAL));
-	else
-		set_pte_at(mm, addr, ptep, __pte(0));
+	if (ptep_buddy(ptep)->pte_low & _PAGE_GLOBAL)
+		null.pte_low = null.pte_high = _PAGE_GLOBAL;
+
+	set_pte_at(mm, addr, ptep, null);
 }
 #else
+
+#define pte_none(pte)		(!(pte_val(pte) & ~_PAGE_GLOBAL))
+#define pte_present(pte)	(pte_val(pte) & _PAGE_PRESENT)
+
 /*
  * Certain architectures need to do special things when pte's
  * within a page table are directly modified.  Thus, the following
@@ -174,75 +183,76 @@ extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
  */
 static inline int pte_user(pte_t pte)	{ BUG(); return 0; }
 #if defined(CONFIG_64BIT_PHYS_ADDR) && defined(CONFIG_CPU_MIPS32_R1)
-static inline int pte_read(pte_t pte)	{ return (pte).pte_low & _PAGE_READ; }
-static inline int pte_write(pte_t pte)	{ return (pte).pte_low & _PAGE_WRITE; }
-static inline int pte_dirty(pte_t pte)	{ return (pte).pte_low & _PAGE_MODIFIED; }
-static inline int pte_young(pte_t pte)	{ return (pte).pte_low & _PAGE_ACCESSED; }
-static inline int pte_file(pte_t pte)	{ return (pte).pte_low & _PAGE_FILE; }
+static inline int pte_read(pte_t pte)	{ return pte.pte_low & _PAGE_READ; }
+static inline int pte_write(pte_t pte)	{ return pte.pte_low & _PAGE_WRITE; }
+static inline int pte_dirty(pte_t pte)	{ return pte.pte_low & _PAGE_MODIFIED; }
+static inline int pte_young(pte_t pte)	{ return pte.pte_low & _PAGE_ACCESSED; }
+static inline int pte_file(pte_t pte)	{ return pte.pte_low & _PAGE_FILE; }
+
 static inline pte_t pte_wrprotect(pte_t pte)
 {
-	(pte).pte_low &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
-	(pte).pte_high &= ~_PAGE_SILENT_WRITE;
+	pte.pte_low  &= ~(_PAGE_WRITE | _PAGE_SILENT_WRITE);
+	pte.pte_high &= ~_PAGE_SILENT_WRITE;
 	return pte;
 }
 
 static inline pte_t pte_rdprotect(pte_t pte)
 {
-	(pte).pte_low &= ~(_PAGE_READ | _PAGE_SILENT_READ);
-	(pte).pte_high &= ~_PAGE_SILENT_READ;
+	pte.pte_low  &= ~(_PAGE_READ | _PAGE_SILENT_READ);
+	pte.pte_high &= ~_PAGE_SILENT_READ;
 	return pte;
 }
 
 static inline pte_t pte_mkclean(pte_t pte)
 {
-	(pte).pte_low &= ~(_PAGE_MODIFIED|_PAGE_SILENT_WRITE);
-	(pte).pte_high &= ~_PAGE_SILENT_WRITE;
+	pte.pte_low  &= ~(_PAGE_MODIFIED | _PAGE_SILENT_WRITE);
+	pte.pte_high &= ~_PAGE_SILENT_WRITE;
 	return pte;
 }
 
 static inline pte_t pte_mkold(pte_t pte)
 {
-	(pte).pte_low &= ~(_PAGE_ACCESSED|_PAGE_SILENT_READ);
-	(pte).pte_high &= ~_PAGE_SILENT_READ;
+	pte.pte_low  &= ~(_PAGE_ACCESSED | _PAGE_SILENT_READ);
+	pte.pte_high &= ~_PAGE_SILENT_READ;
 	return pte;
 }
 
 static inline pte_t pte_mkwrite(pte_t pte)
 {
-	(pte).pte_low |= _PAGE_WRITE;
-	if ((pte).pte_low & _PAGE_MODIFIED) {
-		(pte).pte_low |= _PAGE_SILENT_WRITE;
-		(pte).pte_high |= _PAGE_SILENT_WRITE;
+	pte.pte_low |= _PAGE_WRITE;
+	if (pte.pte_low & _PAGE_MODIFIED) {
+		pte.pte_low  |= _PAGE_SILENT_WRITE;
+		pte.pte_high |= _PAGE_SILENT_WRITE;
 	}
 	return pte;
 }
 
 static inline pte_t pte_mkread(pte_t pte)
 {
-	(pte).pte_low |= _PAGE_READ;
-	if ((pte).pte_low & _PAGE_ACCESSED) {
-		(pte).pte_low |= _PAGE_SILENT_READ;
-		(pte).pte_high |= _PAGE_SILENT_READ;
+	pte.pte_low |= _PAGE_READ;
+	if (pte.pte_low & _PAGE_ACCESSED) {
+		pte.pte_low  |= _PAGE_SILENT_READ;
+		pte.pte_high |= _PAGE_SILENT_READ;
 	}
 	return pte;
 }
 
 static inline pte_t pte_mkdirty(pte_t pte)
 {
-	(pte).pte_low |= _PAGE_MODIFIED;
-	if ((pte).pte_low & _PAGE_WRITE) {
-		(pte).pte_low |= _PAGE_SILENT_WRITE;
-		(pte).pte_high |= _PAGE_SILENT_WRITE;
+	pte.pte_low |= _PAGE_MODIFIED;
+	if (pte.pte_low & _PAGE_WRITE) {
+		pte.pte_low  |= _PAGE_SILENT_WRITE;
+		pte.pte_high |= _PAGE_SILENT_WRITE;
 	}
 	return pte;
 }
 
 static inline pte_t pte_mkyoung(pte_t pte)
 {
-	(pte).pte_low |= _PAGE_ACCESSED;
-	if ((pte).pte_low & _PAGE_READ)
-		(pte).pte_low |= _PAGE_SILENT_READ;
-		(pte).pte_high |= _PAGE_SILENT_READ;
+	pte.pte_low |= _PAGE_ACCESSED;
+	if (pte.pte_low & _PAGE_READ)
+		pte.pte_low  |= _PAGE_SILENT_READ;
+		pte.pte_high |= _PAGE_SILENT_READ;
 	return pte;
 }
 #else
diff --git a/include/asm-mips/sigcontext.h b/include/asm-mips/sigcontext.h
index 8edabb0..cefa657 100644
--- a/include/asm-mips/sigcontext.h
+++ b/include/asm-mips/sigcontext.h
@@ -55,8 +55,14 @@ struct sigcontext {
 struct sigcontext {
 	unsigned long	sc_regs[32];
 	unsigned long	sc_fpregs[32];
-	unsigned long	sc_hi[4];
-	unsigned long	sc_lo[4];
+	unsigned long	sc_mdhi;
+	unsigned long	sc_hi1;
+	unsigned long	sc_hi2;
+	unsigned long	sc_hi3;
+	unsigned long	sc_mdlo;
+	unsigned long	sc_lo1;
+	unsigned long	sc_lo2;
+	unsigned long	sc_lo3;
 	unsigned long	sc_pc;
 	unsigned int	sc_fpc_csr;
 	unsigned int	sc_used_math;