---

yaml
---
r: 74026
b: refs/heads/master
c: e6532b8
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 4fdb2a05ef5703553fdd28f1b96ebdd79f173657
+refs/heads/master: e6532b8883760bdf9d251c669a3919fc9457aeca

trunk/Documentation/thinkpad-acpi.txt

@@ -1,7 +1,7 @@
 		     ThinkPad ACPI Extras Driver
 
-                            Version 0.16
-                          August 2nd, 2007
+                            Version 0.17
+                         October 04th, 2007
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -923,19 +923,34 @@ sysfs backlight device "thinkpad_screen"
 This feature allows software control of the LCD brightness on ThinkPad
 models which don't have a hardware brightness slider.
 
-It has some limitations: the LCD backlight cannot be actually turned on or off
-by this interface, and in many ThinkPad models, the "dim while on battery"
-functionality will be enabled by the BIOS when this interface is used, and
-cannot be controlled.
-
-The backlight control has eight levels, ranging from 0 to 7.  Some of the
-levels may not be distinct.
-
-There are two interfaces to the firmware for brightness control, EC and CMOS.
-To select which one should be used, use the brightness_mode module parameter:
-brightness_mode=1 selects EC mode, brightness_mode=2 selects CMOS mode,
-brightness_mode=3 selects both EC and CMOS.  The driver tries to autodetect
-which interface to use.
+It has some limitations: the LCD backlight cannot be actually turned on or
+off by this interface, and in many ThinkPad models, the "dim while on
+battery" functionality will be enabled by the BIOS when this interface is
+used, and cannot be controlled.
+
+On IBM (and some of the earlier Lenovo) ThinkPads, the backlight control
+has eight brightness levels, ranging from 0 to 7.  Some of the levels
+may not be distinct.  Later Lenovo models that implement the ACPI
+display backlight brightness control methods have 16 levels, ranging
+from 0 to 15.
+
+There are two interfaces to the firmware for direct brightness control,
+EC and CMOS.  To select which one should be used, use the
+brightness_mode module parameter: brightness_mode=1 selects EC mode,
+brightness_mode=2 selects CMOS mode, brightness_mode=3 selects both EC
+and CMOS.  The driver tries to autodetect which interface to use.
+
+When display backlight brightness controls are available through the
+standard ACPI interface, it is best to use it instead of this direct
+ThinkPad-specific interface.  The driver will disable its native
+backlight brightness control interface if it detects that the standard
+ACPI interface is available in the ThinkPad.
+
+The brightness_enable module parameter can be used to control whether
+the LCD brightness control feature will be enabled when available.
+brightness_enable=0 forces it to be disabled.  brightness_enable=1
+forces it to be enabled when available, even if the standard ACPI
+interface is also available.
 
 Procfs notes:
 
@@ -947,11 +962,11 @@ Procfs notes:
 
 Sysfs notes:
 
-The interface is implemented through the backlight sysfs class, which is poorly
-documented at this time.
+The interface is implemented through the backlight sysfs class, which is
+poorly documented at this time.
 
-Locate the thinkpad_screen device under /sys/class/backlight, and inside it
-there will be the following attributes:
+Locate the thinkpad_screen device under /sys/class/backlight, and inside
+it there will be the following attributes:
 
 	max_brightness:
 		Reads the maximum brightness the hardware can be set to.
@@ -961,17 +976,19 @@ there will be the following attributes:
 		Reads what brightness the screen is set to at this instant.
 
 	brightness:
-		Writes request the driver to change brightness to the given
-		value.  Reads will tell you what brightness the driver is trying
-		to set the display to when "power" is set to zero and the display
-		has not been dimmed by a kernel power management event.
+		Writes request the driver to change brightness to the
+		given value.  Reads will tell you what brightness the
+		driver is trying to set the display to when "power" is set
+		to zero and the display has not been dimmed by a kernel
+		power management event.
 
 	power:
-		power management mode, where 0 is "display on", and 1 to 3 will
-		dim the display backlight to brightness level 0 because
-		thinkpad-acpi cannot really turn the backlight off.  Kernel
-		power management events can temporarily increase the current
-		power management level, i.e. they can dim the display.
+		power management mode, where 0 is "display on", and 1 to 3
+		will dim the display backlight to brightness level 0
+		because thinkpad-acpi cannot really turn the backlight
+		off.  Kernel power management events can temporarily
+		increase the current power management level, i.e. they can
+		dim the display.
 
 
 Volume control -- /proc/acpi/ibm/volume

trunk/Makefile

@@ -1,7 +1,7 @@
 VERSION = 2
 PATCHLEVEL = 6
 SUBLEVEL = 24
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc3
 NAME = Arr Matey! A Hairy Bilge Rat!
 
 # *DOCUMENTATION*
@@ -200,11 +200,9 @@ SRCARCH 	:= $(ARCH)
 # Additional ARCH settings for x86
 ifeq ($(ARCH),i386)
         SRCARCH := x86
-        K64BIT  := n
 endif
 ifeq ($(ARCH),x86_64)
         SRCARCH := x86
-        K64BIT  := y
 endif
 
 KCONFIG_CONFIG	?= .config
@@ -341,7 +339,7 @@ KERNELRELEASE = $(shell cat include/config/kernel.release 2> /dev/null)
 KERNELVERSION = $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)$(EXTRAVERSION)
 
 export VERSION PATCHLEVEL SUBLEVEL KERNELRELEASE KERNELVERSION
-export ARCH SRCARCH K64BIT CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
+export ARCH SRCARCH CONFIG_SHELL HOSTCC HOSTCFLAGS CROSS_COMPILE AS LD CC
 export CPP AR NM STRIP OBJCOPY OBJDUMP MAKE AWK GENKSYMS PERL UTS_MACHINE
 export HOSTCXX HOSTCXXFLAGS LDFLAGS_MODULE CHECK CHECKFLAGS
 
@@ -1334,12 +1332,7 @@ else
 ALLINCLUDE_ARCHS := $(ALLSOURCE_ARCHS)
 endif
 
-# Take care of arch/x86
-ifeq ($(ARCH), $(SRCARCH))
-ALLSOURCE_ARCHS := $(ARCH)
-else
-ALLSOURCE_ARCHS := $(ARCH) $(SRCARCH)
-endif
+ALLSOURCE_ARCHS := $(SRCARCH)
 
 define find-sources
         ( for arch in $(ALLSOURCE_ARCHS) ; do \

trunk/README

@@ -194,8 +194,6 @@ CONFIGURING the kernel:
    "make *config" checks for a file named "all{yes/mod/no/random}.config"
    for symbol values that are to be forced.  If this file is not found,
    it checks for a file named "all.config" to contain forced values.
-   Finally it checks the environment variable K64BIT and if found, sets
-   the config symbol "64BIT" to the value of the K64BIT variable.
 
 	NOTES on "make config":
 	- having unnecessary drivers will make the kernel bigger, and can

trunk/arch/arm/mach-pxa/pxa3xx.c

@@ -150,22 +150,45 @@ static void clk_pxa3xx_cken_disable(struct clk *clk)
 	local_irq_enable();
 }
 
+static const struct clkops clk_pxa3xx_cken_ops = {
+	.enable		= clk_pxa3xx_cken_enable,
+	.disable	= clk_pxa3xx_cken_disable,
+};
+
 static const struct clkops clk_pxa3xx_hsio_ops = {
 	.enable		= clk_pxa3xx_cken_enable,
 	.disable	= clk_pxa3xx_cken_disable,
 	.getrate	= clk_pxa3xx_hsio_getrate,
 };
 
+#define PXA3xx_CKEN(_name, _cken, _rate, _delay, _dev)	\
+	{						\
+		.name	= _name,			\
+		.dev	= _dev,				\
+		.ops	= &clk_pxa3xx_cken_ops,		\
+		.rate	= _rate,			\
+		.cken	= CKEN_##_cken,			\
+		.delay	= _delay,			\
+	}
+
+#define PXA3xx_CK(_name, _cken, _ops, _dev)		\
+	{						\
+		.name	= _name,			\
+		.dev	= _dev,				\
+		.ops	= _ops,				\
+		.cken	= CKEN_##_cken,			\
+	}
+
 static struct clk pxa3xx_clks[] = {
-	INIT_CK("LCDCLK", LCD,    &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev),
-	INIT_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL),
+	PXA3xx_CK("LCDCLK", LCD,    &clk_pxa3xx_hsio_ops, &pxa_device_fb.dev),
+	PXA3xx_CK("CAMCLK", CAMERA, &clk_pxa3xx_hsio_ops, NULL),
 
-	INIT_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev),
-	INIT_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev),
-	INIT_CKEN("UARTCLK", STUART, 14857000, 1, NULL),
+	PXA3xx_CKEN("UARTCLK", FFUART, 14857000, 1, &pxa_device_ffuart.dev),
+	PXA3xx_CKEN("UARTCLK", BTUART, 14857000, 1, &pxa_device_btuart.dev),
+	PXA3xx_CKEN("UARTCLK", STUART, 14857000, 1, NULL),
 
-	INIT_CKEN("I2CCLK",  I2C,  32842000, 0, &pxa_device_i2c.dev),
-	INIT_CKEN("UDCCLK",  UDC,  48000000, 5, &pxa_device_udc.dev),
+	PXA3xx_CKEN("I2CCLK", I2C,  32842000, 0, &pxa_device_i2c.dev),
+	PXA3xx_CKEN("UDCCLK", UDC,  48000000, 5, &pxa_device_udc.dev),
 };
 
 void __init pxa3xx_init_irq(void)

trunk/arch/arm/mm/consistent.c

@@ -322,7 +322,6 @@ static int dma_mmap(struct device *dev, struct vm_area_struct *vma,
 
 		if (off < kern_size &&
 		    user_size <= (kern_size - off)) {
-			vma->vm_flags |= VM_RESERVED;
 			ret = remap_pfn_range(vma, vma->vm_start,
 					      page_to_pfn(c->vm_pages) + off,
 					      user_size << PAGE_SHIFT,

trunk/arch/x86/Kconfig

@@ -3,8 +3,8 @@ mainmenu "Linux Kernel Configuration for x86"
 
 # Select 32 or 64 bit
 config 64BIT
-	bool "64-bit kernel"
-	default n
+	bool "64-bit kernel" if ARCH = "x86"
+	default ARCH = "x86_64"
 	help
 	  Say yes to build a 64-bit kernel - formerly known as x86_64
 	  Say no to build a 32-bit kernel - formerly known as i386

trunk/arch/x86/kernel/acpi/boot.c

@@ -637,6 +637,38 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
 	}
 
 	hpet_address = hpet_tbl->address.address;
+
+	/*
+	 * Some broken BIOSes advertise HPET at 0x0. We really do not
+	 * want to allocate a resource there.
+	 */
+	if (!hpet_address) {
+		printk(KERN_WARNING PREFIX
+		       "HPET id: %#x base: %#lx is invalid\n",
+		       hpet_tbl->id, hpet_address);
+		return 0;
+	}
+#ifdef CONFIG_X86_64
+	/*
+	 * Some even more broken BIOSes advertise HPET at
+	 * 0xfed0000000000000 instead of 0xfed00000. Fix it up and add
+	 * some noise:
+	 */
+	if (hpet_address == 0xfed0000000000000UL) {
+		if (!hpet_force_user) {
+			printk(KERN_WARNING PREFIX "HPET id: %#x "
+			       "base: 0xfed0000000000000 is bogus\n "
+			       "try hpet=force on the kernel command line to "
+			       "fix it up to 0xfed00000.\n", hpet_tbl->id);
+			hpet_address = 0;
+			return 0;
+		}
+		printk(KERN_WARNING PREFIX
+		       "HPET id: %#x base: 0xfed0000000000000 fixed up "
+		       "to 0xfed00000.\n", hpet_tbl->id);
+		hpet_address >>= 32;
+	}
+#endif
 	printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
 	       hpet_tbl->id, hpet_address);
 

trunk/arch/x86/kernel/acpi/processor.c

@@ -49,6 +49,9 @@ static void init_intel_pdc(struct acpi_processor *pr, struct cpuinfo_x86 *c)
 	if (cpu_has(c, X86_FEATURE_EST))
 		buf[2] |= ACPI_PDC_EST_CAPABILITY_SWSMP;
 
+	if (cpu_has(c, X86_FEATURE_ACPI))
+		buf[2] |= ACPI_PDC_T_FFH;
+
 	obj->type = ACPI_TYPE_BUFFER;
 	obj->buffer.length = 12;
 	obj->buffer.pointer = (u8 *) buf;