---

yaml --- r: 88253 b: refs/heads/master c: 1b69d74 h: refs/heads/master i: 88251: a11c6c6 v: v3
git-mirror · Apr 8, 2008 · 72acfa3 · 72acfa3
1 parent 6b7354e
commit 72acfa3
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diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 3f0635016246e2fee6e80b4741299833c68b065e
+refs/heads/master: 1b69d745397eac12b3f8a2eb6b799cd476aef282
diff --git a/trunk/Documentation/kernel-parameters.txt b/trunk/Documentation/kernel-parameters.txt
@@ -375,10 +375,6 @@ and is between 256 and 4096 characters. It is defined in the file
 	ccw_timeout_log [S390]
 			See Documentation/s390/CommonIO for details.
 
-	cgroup_disable= [KNL] Disable a particular controller
-			Format: {name of the controller(s) to disable}
-				{Currently supported controllers - "memory"}
-
 	checkreqprot	[SELINUX] Set initial checkreqprot flag value.
 			Format: { "0" | "1" }
 			See security/selinux/Kconfig help text.

diff --git a/trunk/Documentation/spi/spi-summary b/trunk/Documentation/spi/spi-summary
@@ -116,13 +116,6 @@ low order bit.  So when a chip's timing diagram shows the clock
 starting low (CPOL=0) and data stabilized for sampling during the
 trailing clock edge (CPHA=1), that's SPI mode 1.
 
-Note that the clock mode is relevant as soon as the chipselect goes
-active.  So the master must set the clock to inactive before selecting
-a slave, and the slave can tell the chosen polarity by sampling the
-clock level when its select line goes active.  That's why many devices
-support for example both modes 0 and 3:  they don't care about polarity,
-and alway clock data in/out on rising clock edges.
-
 
 How do these driver programming interfaces work?
 ------------------------------------------------
@@ -386,14 +379,8 @@ any more such messages.
       + when bidirectional reads and writes start ... by how its
         sequence of spi_transfer requests is arranged;
 
-      + which I/O buffers are used ... each spi_transfer wraps a
-        buffer for each transfer direction, supporting full duplex
-        (two pointers, maybe the same one in both cases) and half
-        duplex (one pointer is NULL) transfers;
-
       + optionally defining short delays after transfers ... using
-        the spi_transfer.delay_usecs setting (this delay can be the
-        only protocol effect, if the buffer length is zero);
+        the spi_transfer.delay_usecs setting;
 
       + whether the chipselect becomes inactive after a transfer and
         any delay ... by using the spi_transfer.cs_change flag;

diff --git a/trunk/arch/frv/kernel/entry-table.S b/trunk/arch/frv/kernel/entry-table.S
@@ -316,14 +316,8 @@ __trap_fixup_kernel_data_tlb_miss:
 	.section	.trap.vector
 	.org		TBR_TT_TRAP0 >> 2
 	.long		system_call
-	.rept		119
+	.rept		126
 	.long		__entry_unsupported_trap
 	.endr
-
-	# userspace atomic op emulation, traps 120-126
-	.rept		7
-	.long		__entry_atomic_op
-	.endr
-
 	.org		TBR_TT_BREAK >> 2
 	.long		__entry_debug_exception
diff --git a/trunk/arch/frv/kernel/entry.S b/trunk/arch/frv/kernel/entry.S
@@ -654,26 +654,6 @@ __entry_debug_exception:
 	movgs		gr4,psr
 	jmpl		@(gr5,gr0)	; call ill_insn(esfr1,epcr0,esr0)
 
-###############################################################################
-#
-# handle atomic operation emulation for userspace
-#
-###############################################################################
-	.globl		__entry_atomic_op
-__entry_atomic_op:
-	LEDS		0x6012
-	sethi.p		%hi(atomic_operation),gr5
-	setlo		%lo(atomic_operation),gr5
-	movsg		esfr1,gr8
-	movsg		epcr0,gr9
-	movsg		esr0,gr10
-
-	# now that we've accessed the exception regs, we can enable exceptions
-	movsg		psr,gr4
-	ori		gr4,#PSR_ET,gr4
-	movgs		gr4,psr
-	jmpl		@(gr5,gr0)	; call atomic_operation(esfr1,epcr0,esr0)
-
 ###############################################################################
 #
 # handle media exception

diff --git a/trunk/arch/frv/kernel/head.inc b/trunk/arch/frv/kernel/head.inc
@@ -46,5 +46,5 @@
 #ifdef CONFIG_MMU
 __sdram_base = 0x00000000		/* base address to which SDRAM relocated */
 #else
-__sdram_base = __page_offset		/* base address to which SDRAM relocated */
+__sdram_base = 0xc0000000		/* base address to which SDRAM relocated */
 #endif
diff --git a/trunk/arch/frv/kernel/switch_to.S b/trunk/arch/frv/kernel/switch_to.S
@@ -102,6 +102,13 @@ __switch_to:
 	movgs		gr14,lr
 	bar
 
+	srli		gr15,#28,gr5
+	subicc		gr5,#0xc,gr0,icc0
+	beq		icc0,#0,111f
+	break
+	nop
+111:
+
 	# jump to __switch_back or ret_from_fork as appropriate
 	# - move prev to GR8
 	movgs		gr4,psr

diff --git a/trunk/arch/frv/kernel/traps.c b/trunk/arch/frv/kernel/traps.c
@@ -100,233 +100,6 @@ asmlinkage void illegal_instruction(unsigned long esfr1, unsigned long epcr0, un
 	force_sig_info(info.si_signo, &info, current);
 } /* end illegal_instruction() */
 
-/*****************************************************************************/
-/*
- * handle atomic operations with errors
- * - arguments in gr8, gr9, gr10
- * - original memory value placed in gr5
- * - replacement memory value placed in gr9
- */
-asmlinkage void atomic_operation(unsigned long esfr1, unsigned long epcr0,
-				 unsigned long esr0)
-{
-	static DEFINE_SPINLOCK(atomic_op_lock);
-	unsigned long x, y, z, *p;
-	mm_segment_t oldfs;
-	siginfo_t info;
-	int ret;
-
-	y = 0;
-	z = 0;
-
-	oldfs = get_fs();
-	if (!user_mode(__frame))
-		set_fs(KERNEL_DS);
-
-	switch (__frame->tbr & TBR_TT) {
-		/* TIRA gr0,#120
-		 * u32 __atomic_user_cmpxchg32(u32 *ptr, u32 test, u32 new)
-		 */
-	case TBR_TT_ATOMIC_CMPXCHG32:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-		y = __frame->gr10;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			if (z != x)
-				goto done;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				if (z != x)
-					goto done2;
-
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#121
-		 * u32 __atomic_kernel_xchg32(void *v, u32 new)
-		 */
-	case TBR_TT_ATOMIC_XCHG32:
-		p = (unsigned long *) __frame->gr8;
-		y = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#122
-		 * ulong __atomic_kernel_XOR_return(ulong i, ulong *v)
-		 */
-	case TBR_TT_ATOMIC_XOR:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				y = x ^ z;
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#123
-		 * ulong __atomic_kernel_OR_return(ulong i, ulong *v)
-		 */
-	case TBR_TT_ATOMIC_OR:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				y = x ^ z;
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#124
-		 * ulong __atomic_kernel_AND_return(ulong i, ulong *v)
-		 */
-	case TBR_TT_ATOMIC_AND:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				y = x & z;
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#125
-		 * int __atomic_user_sub_return(atomic_t *v, int i)
-		 */
-	case TBR_TT_ATOMIC_SUB:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				y = z - x;
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-		/* TIRA gr0,#126
-		 * int __atomic_user_add_return(atomic_t *v, int i)
-		 */
-	case TBR_TT_ATOMIC_ADD:
-		p = (unsigned long *) __frame->gr8;
-		x = __frame->gr9;
-
-		for (;;) {
-			ret = get_user(z, p);
-			if (ret < 0)
-				goto error;
-
-			spin_lock_irq(&atomic_op_lock);
-
-			if (__get_user(z, p) == 0) {
-				y = z + x;
-				if (__put_user(y, p) == 0)
-					goto done2;
-				goto error2;
-			}
-
-			spin_unlock_irq(&atomic_op_lock);
-		}
-
-	default:
-		BUG();
-	}
-
-done2:
-	spin_unlock_irq(&atomic_op_lock);
-done:
-	if (!user_mode(__frame))
-		set_fs(oldfs);
-	__frame->gr5 = z;
-	__frame->gr9 = y;
-	return;
-
-error2:
-	spin_unlock_irq(&atomic_op_lock);
-error:
-	if (!user_mode(__frame))
-		set_fs(oldfs);
-	__frame->pc -= 4;
-
-	die_if_kernel("-- Atomic Op Error --\n");
-
-	info.si_signo	= SIGSEGV;
-	info.si_code	= SEGV_ACCERR;
-	info.si_errno	= 0;
-	info.si_addr	= (void *) __frame->pc;
-
-	force_sig_info(info.si_signo, &info, current);
-}
-
 /*****************************************************************************/
 /*
  *

diff --git a/trunk/arch/m68k/Makefile b/trunk/arch/m68k/Makefile
@@ -13,8 +13,6 @@
 # Copyright (C) 1994 by Hamish Macdonald
 #
 
-KBUILD_DEFCONFIG := amiga_defconfig
-
 # override top level makefile
 AS += -m68020
 LDFLAGS := -m m68kelf