Merge home.transmeta.com:/home/torvalds/v2.5/hotplug

into home.transmeta.com:/home/torvalds/v2.5/linux

Documentation/00-INDEX

@@ -56,6 +56,8 @@ computone.txt
 	- info on Computone Intelliport II/Plus Multiport Serial Driver
 cpqarray.txt
 	- info on using Compaq's SMART2 Intelligent Disk Array Controllers.
+cpufreq/
+	- info on CPU frequency and voltage scaling
 cris/
 	- directory with info about Linux on CRIS architecture.
 devices.txt

Documentation/cpu-freq/core.txt

+     CPU frequency and voltage scaling code in the Linux(TM) kernel
+
+
+		         L i n u x    C P U F r e q
+
+			  C P U F r e q    C o r e
+
+
+		    Dominik Brodowski  <linux@brodo.de>
+		     David Kimdon <dwhedon@debian.org>
+
+
+
+   Clock scaling allows you to change the clock speed of the CPUs on the
+    fly. This is a nice method to save battery power, because the lower
+            the clock speed, the less power the CPU consumes.
+
+
+Contents:
+---------
+1.  CPUFreq core and interfaces
+2.  CPUFreq notifiers
+
+1. General Information
+=======================
+
+The CPUFreq core code is located in linux/kernel/cpufreq.c. This
+cpufreq code offers a standardized interface for the CPUFreq
+architecture drivers (those pieces of code that do actual
+frequency transitions), as well as to "notifiers". These are device
+drivers or other part of the kernel that need to be informed of
+policy changes (ex. thermal modules like ACPI) or of all
+frequency changes (ex. timing code) or even need to force certain
+speed limits (like LCD drivers on ARM architecture). Additionally, the
+kernel "constant" loops_per_jiffy is updated on frequency changes
+here.
+
+
+2. CPUFreq notifiers
+====================
+
+CPUFreq notifiers conform to the standard kernel notifier interface.
+See linux/include/linux/notifier.h for details on notifiers.
+
+There are two different CPUFreq notifiers - policy notifiers and
+transition notifiers.
+
+
+2.1 CPUFreq policy notifiers
+----------------------------
+
+These are notified when a new policy is intended to be set. Each
+CPUFreq policy notifier is called three times for a policy transition:
+
+1.) During CPUFREQ_ADJUST all CPUFreq notifiers may change the limit if
+    they see a need for this - may it be thermal considerations or
+    hardware limitations.
+
+2.) During CPUFREQ_INCOMPATIBLE only changes may be done in order to avoid
+    hardware failure.
+
+3.) And during CPUFREQ_NOTIFY all notifiers are informed of the new policy
+   - if two hardware drivers failed to agree on a new policy before this
+   stage, the incompatible hardware shall be shut down, and the user
+   informed of this.
+
+The phase is specified in the second argument to the notifier.
+
+The third argument, a void *pointer, points to a struct cpufreq_policy
+consisting of five values: cpu, min, max, policy and max_cpu_freq. min 
+and max are the lower and upper frequencies (in kHz) of the new
+policy, policy the new policy, cpu the number of the affected CPU or
+CPUFREQ_ALL_CPUS for all CPUs; and max_cpu_freq the maximum supported
+CPU frequency. This value is given for informational purposes only.
+
+
+2.2 CPUFreq transition notifiers
+--------------------------------
+
+These are notified twice when the CPUfreq driver switches the CPU core
+frequency and this change has any external implications.
+
+The second argument specifies the phase - CPUFREQ_PRECHANGE or
+CPUFREQ_POSTCHANGE.
+
+The third argument is a struct cpufreq_freqs with the following
+values:
+cpu	- number of the affected CPU or CPUFREQ_ALL_CPUS
+old	- old frequency
+new	- new frequency

Documentation/cpu-freq/cpu-drivers.txt

+     CPU frequency and voltage scaling code in the Linux(TM) kernel
+
+
+		         L i n u x    C P U F r e q
+
+			   C P U   D r i v e r s 
+
+		       - information for developers -
+
+
+		    Dominik Brodowski  <linux@brodo.de>
+
+
+
+   Clock scaling allows you to change the clock speed of the CPUs on the
+    fly. This is a nice method to save battery power, because the lower
+            the clock speed, the less power the CPU consumes.
+
+
+Contents:
+---------
+1.   What To Do?
+1.1  Initialization
+1.2  Per-CPU Initialization
+1.3  verify
+1.4  target or setpolicy?
+1.5  target
+1.6  setpolicy
+2.   Frequency Table Helpers
+
+
+
+1. What To Do?
+==============
+
+So, you just got a brand-new CPU / chipset with datasheets and want to
+add cpufreq support for this CPU / chipset? Great. Here are some hints
+on what is neccessary:
+
+
+1.1 Initialization
+------------------
+
+First of all, in an __initcall level 7 or later (preferrably
+module_init() so that your driver is modularized) function check
+whether this kernel runs on the right CPU and the right chipset. If
+so, register a struct cpufreq_driver with the CPUfreq core using
+cpufreq_register_driver()
+
+What shall this struct cpufreq_driver contain? 
+
+cpufreq_driver.name -		The name of this driver.
+
+cpufreq_driver.init -		A pointer to the per-CPU initialization 
+				function.
+
+cpufreq_driver.verify -		A pointer to a "verfication" funciton.
+
+cpufreq_driver.setpolicy _or_ 
+cpufreq_driver.target -		See below on the differences.
+
+And optionally
+
+cpufreq_driver.exit -		A pointer to a per-CPU cleanup function.
+
+
+
+1.2 Per-CPU Initialization
+--------------------------
+
+Whenever a new CPU is registered with the device model, or after the
+cpufreq driver registers itself, the per-CPU initialization fucntion 
+cpufreq_driver.init is called. It takes a struct cpufreq_policy
+*policy as argument. What to do now?
+
+If necessary, activate the CPUfreq support on your CPU (unlock that
+register etc.).
+
+Then, the driver must fill in the following values:
+
+policy->cpuinfo.min_freq _and_
+policy->cpuinfo.max_freq -	the minimum and maximum frequency 
+				(in kHz) which is supported by 
+				this CPU
+policy->cpuinfo.transition_latency   the time it takes on this CPU to
+				switch between two frequencies (if
+				appropriate, else specify
+				CPUFREQ_ETERNAL)
+
+policy->cur			The current operating frequency of
+				this CPU (if appropriate)
+policy->min, 
+policy->max, 
+policy->policy and, if neccessary,
+policy->governor		must contain the "default policy" for
+				this CPU. A few moments later,
+				cpufreq_driver.verify and either
+				cpufreq_driver.setpolicy or
+				cpufreq_driver.target is called with
+				these values.
+
+For setting some of these values, the frequency table helpers might be
+helpful. See the section 2 for more information on them.
+
+
+1.3 verify
+------------
+
+When the user decides a new policy (consisting of
+"policy,governor,min,max") shall be set, this policy must be validated
+so that incompatible values can be corrected. For verifying these
+values, a frequency table helper and/or the
+cpufreq_verify_within_limits(struct cpufreq_policy *policy, unsigned
+int min_freq, unsigned int max_freq) function might be helpful. See
+section 2 for details on frequency table helpers.
+
+You need to make sure that at least one valid frequency (or operating
+range) is within policy->min and policy->max. If necessary, increase
+policy->max fist, and only if this is no solution, decreas policy->min.
+
+
+1.4 target or setpolicy?
+----------------------------
+
+Most cpufreq drivers or even most cpu frequency scaling algorithms 
+only allow the CPU to be set to one frequency. For these, you use the
+->target call.
+
+Some cpufreq-capable processors switch the frequency between certain
+limits on their own. These shall use the ->setpolicy call
+
+
+1.4. target
+-------------
+
+The target call has three arguments: struct cpufreq_policy *policy,
+unsigned int target_frequency, unsigned int relation.
+
+The CPUfreq driver must set the new frequency when called here. The
+actual frequency must be determined using the following rules:
+
+- keep close to "target_freq"
+- policy->min <= new_freq <= policy->max (THIS MUST BE VALID!!!)
+- if relation==CPUFREQ_REL_L, try to select a new_freq higher than or equal
+  target_freq. ("L for lowest, but no lower than")
+- if relation==CPUFREQ_REL_H, try to select a new_freq lower than or equal
+  target_freq. ("H for highest, but no higher than")
+
+Here again the frequency table helper might assist you - see section 3
+for details.
+
+
+1.5 setpolicy
+---------------
+
+The setpolicy call only takes a struct cpufreq_policy *policy as
+argument. You need to set the lower limit of the in-processor or
+in-chipset dynamic frequency switching to policy->min, the upper limit
+to policy->max, and -if supported- select a performance-oriented
+setting when policy->policy is CPUFREQ_POLICY_PERFORMANCE, and a
+powersaving-oriented setting when CPUFREQ_POLICY_POWERSAVE. Also check
+the reference implementation in arch/i386/kernel/cpu/cpufreq/longrun.c
+
+
+
+2. Frequency Table Helpers
+==========================
+
+As most cpufreq processors only allow for being set to a few specific
+frequencies, a "frequency table" with some functions might assist in
+some work of the processor driver. Such a "frequency table" consists
+of an array of struct cpufreq_freq_table entries, with any value in
+"index" you want to use, and the corresponding frequency in
+"frequency". At the end of the table, you need to add a
+cpufreq_freq_table entry with frequency set to CPUFREQ_TABLE_END. And
+if you want to skip one entry in the table, set the frequency to 
+CPUFREQ_ENTRY_INVALID. The entries don't need to be in ascending
+order.
+
+By calling cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
+					struct cpufreq_frequency_table *table);
+the cpuinfo.min_freq and cpuinfo.max_freq values are detected, and
+policy->min and policy->max are set to the same values. This is
+helpful for the per-CPU initialization stage.
+
+int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
+                                   struct cpufreq_frequency_table *table);
+assures that at least one valid frequency is within policy->min and
+policy->max, and all other criteria are met. This is helpful for the
+->verify call.
+
+int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
+                                   struct cpufreq_frequency_table *table,
+                                   unsigned int target_freq,
+                                   unsigned int relation,
+                                   unsigned int *index);
+
+is the corresponding frequency table helper for the ->target
+stage. Just pass the values to this function, and the unsigned int
+index returns the number of the frequency table entry which contains
+the frequency the CPU shall be set to. PLEASE NOTE: This is not the
+"index" which is in this cpufreq_table_entry.index, but instead
+cpufreq_table[index]. So, the new frequency is
+cpufreq_table[index].frequency, and the value you stored into the
+frequency table "index" field is
+cpufreq_table[index].index.
+

Documentation/cpu-freq/governors.txt

+     CPU frequency and voltage scaling code in the Linux(TM) kernel
+
+
+		         L i n u x    C P U F r e q
+
+		      C P U F r e q   G o v e r n o r s
+
+		   - information for users and developers -
+
+
+		    Dominik Brodowski  <linux@brodo.de>
+
+
+
+   Clock scaling allows you to change the clock speed of the CPUs on the
+    fly. This is a nice method to save battery power, because the lower
+            the clock speed, the less power the CPU consumes.
+
+
+Contents:
+---------
+1.   What is a CPUFreq Governor?
+
+2.   Governors In the Linux Kernel
+2.1  Performance
+2.2  Powersave
+2.3  Userspace
+
+3.   The Governor Interface in the CPUfreq Core
+
+
+
+1. What Is A CPUFreq Governor?
+==============================
+
+Most cpufreq drivers (in fact, all except one, longrun) or even most
+cpu frequency scaling algorithms only offer the CPU to be set to one
+frequency. In order to offer dynamic frequency scaling, the cpufreq
+core must be able to tell these drivers of a "target frequency". So
+these specific drivers will be transformed to offer a "->target"
+call instead of the existing "->setpolicy" call. For "longrun", all
+stays the same, though.
+
+How to decide what frequency within the CPUfreq policy should be used?
+That's done using "cpufreq governors". Two are already in this patch
+-- they're the already existing "powersave" and "performance" which
+set the frequency statically to the lowest or highest frequency,
+respectively. At least two more such governors will be ready for
+addition in the near future, but likely many more as there are various
+different theories and models about dynamic frequency scaling
+around. Using such a generic interface as cpufreq offers to scaling
+governors, these can be tested extensively, and the best one can be
+selected for each specific use.
+
+Basically, it's the following flow graph:
+
+CPU can be set to switch independetly	 |	   CPU can only be set
+      within specific "limits"		 |       to specific frequencies
+
+                                 "CPUfreq policy"
+		consists of frequency limits (policy->{min,max})
+  		     and CPUfreq governor to be used
+			 /		      \
+			/		       \
+		       /		       the cpufreq governor decides
+		      /			       (dynamically or statically)
+		     /			       what target_freq to set within
+		    /			       the limits of policy->{min,max}
+		   /			            \
+		  /				     \
+	Using the ->setpolicy call,		 Using the ->target call,
+	    the limits and the			  the frequency closest
+	     "policy" is set.			  to target_freq is set.
+						  It is assured that it
+						  is within policy->{min,max}
+
+
+2. Governors In the Linux Kernel
+================================
+
+2.1 Performance
+---------------
+
+The CPUfreq governor "performance" sets the CPU statically to the
+highest frequency within the borders of scaling_min_freq and
+scaling_max_freq.
+
+
+2.1 Powersave
+-------------
+
+The CPUfreq governor "powersave" sets the CPU statically to the
+lowest frequency within the borders of scaling_min_freq and
+scaling_max_freq.
+
+
+2.2 Userspace
+-------------
+
+The CPUfreq governor "userspace" allows the user, or any userspace
+program running with UID "root", to set the CPU to a specifc frequency
+by making a sysfs file "scaling_setspeed" available in the CPU-device
+directory.
+
+
+
+3. The Governor Interface in the CPUfreq Core
+=============================================
+
+A new governor must register itself with the CPUfreq core using
+"cpufreq_register_governor". The struct cpufreq_governor, which has to
+be passed to that function, must contain the following values:
+
+governor->name -	    A unique name for this governor
+governor->governor -	    The governor callback function
+governor->owner	-	    .THIS_MODULE for the governor module (if 
+			    appropriate)
+
+The governor->governor callback is called with the current (or to-be-set)
+cpufreq_policy struct for that CPU, and an unsigned int event. The
+following events are currently defined:
+
+CPUFREQ_GOV_START:   This governor shall start its duty for the CPU
+		     policy->cpu
+CPUFREQ_GOV_STOP:    This governor shall end its duty for the CPU
+		     policy->cpu
+CPUFREQ_GOV_LIMITS:  The limits for CPU policy->cpu have changed to
+		     policy->min and policy->max.
+
+If you need other "events" externally of your driver, _only_ use the
+cpufreq_governor_l(unsigned int cpu, unsigned int event) call to the
+CPUfreq core to ensure proper locking.
+
+
+The CPUfreq governor may call the CPU processor driver using one of
+these two functions:
+
+inline int cpufreq_driver_target(struct cpufreq_policy *policy,
+                                 unsigned int target_freq,
+                                 unsigned int relation);
+
+inline int cpufreq_driver_target_l(struct cpufreq_policy *policy,
+                                   unsigned int target_freq,
+                                   unsigned int relation);
+
+target_freq must be within policy->min and policy->max, of course.
+What's the difference between these two functions? When your governor
+still is in a direct code path of a call to governor->governor, the
+cpufreq_driver_sem lock is still held in the cpufreq core, and there's
+no need to lock it again (in fact, this would cause a deadlock). So
+use cpufreq_driver_target only in these cases. In all other cases (for
+example, when there's a "daemonized" function that wakes up every
+second), use cpufreq_driver_target_l to lock the cpufreq_driver_sem
+before the command is passed to the cpufreq processor driver.
+

Documentation/cpu-freq/index.txt

+     CPU frequency and voltage scaling code in the Linux(TM) kernel
+
+
+		         L i n u x    C P U F r e q
+
+
+
+
+		    Dominik Brodowski  <linux@brodo.de>
+
+
+
+   Clock scaling allows you to change the clock speed of the CPUs on the
+    fly. This is a nice method to save battery power, because the lower
+            the clock speed, the less power the CPU consumes.
+
+
+
+Documents in this directory:
+----------------------------
+core.txt	-	General description of the CPUFreq core and
+			of CPUFreq notifiers
+
+cpu-drivers.txt -	How to implement a new cpufreq processor driver
+
+governors.txt	-	What are cpufreq governors and how to
+			implement them?
+
+index.txt	-	File index, Mailing list and Links (this document)
+
+user-guide.txt	-	User Guide to CPUFreq
+
+
+Mailing List
+------------
+There is a CPU frequency changing CVS commit and general list where
+you can report bugs, problems or submit patches. To post a message,
+send an email to cpufreq@www.linux.org.uk, to subscribe go to
+http://www.linux.org.uk/mailman/listinfo/cpufreq. Previous post to the
+mailing list are available to subscribers at
+http://www.linux.org.uk/mailman/private/cpufreq/.
+
+
+Links
+-----
+the FTP archives:
+* ftp://ftp.linux.org.uk/pub/linux/cpufreq/
+
+how to access the CVS repository:
+* http://cvs.arm.linux.org.uk/
+
+the CPUFreq Mailing list:
+* http://www.linux.org.uk/mailman/listinfo/cpufreq
+
+Clock and voltage scaling for the SA-1100:
+* http://www.lart.tudelft.nl/projects/scaling

Documentation/cpu-freq/user-guide.txt

+     CPU frequency and voltage scaling code in the Linux(TM) kernel
+
+
+		         L i n u x    C P U F r e q
+
+			     U S E R   G U I D E
+
+
+		    Dominik Brodowski  <linux@brodo.de>
+
+
+
+   Clock scaling allows you to change the clock speed of the CPUs on the
+    fly. This is a nice method to save battery power, because the lower
+            the clock speed, the less power the CPU consumes.
+
+
+Contents:
+---------
+1. Supported Architectures and Processors
+1.1 ARM
+1.2 x86
+1.3 sparc64
+
+2. "Policy" / "Governor"?
+2.1 Policy
+2.2 Governor
+
+3. How to change the CPU cpufreq policy and/or speed
+3.1 Preferred interface: sysfs
+3.2 Deprecated interfaces
+
+
+
+1. Supported Architectures and Processors
+=========================================
+
+1.1 ARM
+-------
+
+The following ARM processors are supported by cpufreq:
+
+ARM Integrator
+ARM-SA1100
+ARM-SA1110
+
+
+1.2 x86
+-------
+
+The following processors for the x86 architecture are supported by cpufreq:
+
+AMD Elan - SC400, SC410
+AMD mobile K6-2+
+AMD mobile K6-3+
+Cyrix Media GXm
+Intel mobile PIII [*] and Intel mobile PIII-M on certain chipsets
+Intel Pentium 4, Intel Xeon
+National Semiconductors Geode GX
+Transmeta Crusoe
+varios processors on some ACPI 2.0-compatible systems [**]
+
+[*] only certain Intel mobile PIII processors are supported. If you
+know that you own a speedstep-capable processor, pass the option
+"speedstep_coppermine=1" to the module speedstep.o
+
+[**] Only if "ACPI Processor Performance States" are available
+to the ACPI<->BIOS interface.
+
+
+1.3 sparc64
+-----------
+
+The following processors for the sparc64 architecture are supported by
+cpufreq:
+
+UltraSPARC-III
+
+
+
+2. "Policy" / "Governor" ?
+==========================
+
+Some CPU frequency scaling-capable processor switch between varios
+frequencies and operating voltages "on the fly" without any kernel or
+user involvement. This guarantuees very fast switching to a frequency
+which is high enough to serve the user's needs, but low enough to save
+power.
+
+
+2.1 Policy
+----------
+
+On these systems, all you can do is select the lower and upper
+frequency limit as well as whether you want more aggressive
+power-saving or more instantly avaialble processing power.
+
+
+2.2 Governor
+------------
+
+On all other cpufreq implementations, these boundaries still need to
+be set. Then, a "governor" must be selected. Such a "governor" decides
+what speed the processor shall run within the boundaries. One such
+"governor" is the "userspace" governor. This one allows the user - or
+a yet-to-implement userspace program - to decide what specific speed
+the processor shall run at.
+
+
+3. How to change the CPU cpufreq policy and/or speed
+====================================================
+
+3.1 Preferred Interface: sysfs
+------------------------------
+
+The preferred interface is located in the sysfs filesystem. If you
+mounted it at /sys, the cpufreq interface is located in the 
+cpu-device directory (e.g. /sys/devices/sys/cpu0/ for the first
+CPU).
+
+cpuinfo_min_freq :		this file shows the minimum operating
+				frequency the processor can run at(in kHz) 
+cpuinfo_max_freq :		this file shows the maximum operating
+				frequency the processor can run at(in kHz) 
+scaling_driver :		this file shows what cpufreq driver is
+				used to set the frequency on this CPU
+
+available_scaling_governors :	this file shows the CPUfreq governors
+				available in this kernel. You can see the
+				currently activated governor in
+
+scaling_governor,		and by "echoing" the name of another
+				governor you can change it. Please note
+				that some governors won't load - they only
+				work on some specific architectures or
+				processors.
+scaling_min_freq and 
+scaling_max_freq		show the current "policy limits" (in
+				kHz). By echoing new values into these
+				files, you can change these limits.
+
+
+If you have selected the "userspace" governor which allows you to
+set the CPU operating frequency to a specific value, you can read out
+the current frequency in
+
+scaling_setspeed.		By "echoing" a new frequency into this
+				you can change the speed of the CPU,
+				but only within the limits of
+				scaling_min_freq and scaling_max_freq.
+				
+
+3.2 Deprecated Interfaces
+-------------------------
+
+Depending on your kernel configuration, you might find the following 
+cpufreq-related files:
+/proc/cpufreq
+/proc/sys/cpu/*/speed
+/proc/sys/cpu/*/speed-min
+/proc/sys/cpu/*/speed-max
+
+These are files for deprecated interfaces to cpufreq, which offer far
+less functionality. Because of this, these interfaces aren't described
+here.
+

Makefile

@@ -159,7 +159,7 @@ STRIP		= $(CROSS_COMPILE)strip
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
 AWK		= awk
-GENKSYMS	= /sbin/genksyms
+GENKSYMS	= scripts/genksyms/genksyms
 DEPMOD		= /sbin/depmod
 KALLSYMS	= scripts/kallsyms
 PERL		= perl
@@ -190,6 +190,7 @@ export MODVERDIR := .tmp_versions
 
 # The temporary file to save gcc -MD generated dependencies must not
 # contain a comma
+comma := ,
 depfile = $(subst $(comma),_,$(@D)/.$(@F).d)
 
 noconfig_targets := xconfig menuconfig config oldconfig randconfig \
@@ -319,36 +320,31 @@ define cmd_vmlinux__
 endef
 
 #	set -e makes the rule exit immediately on error
-#	Final awk script makes sure per-cpu vars are in per-cpu section, as
-#	old gcc (eg egcs 2.92.11) ignores section attribute if uninitialized.
 
 define rule_vmlinux__
-	set -e
-	$(if $(filter .tmp_kallsyms%,$^),,
-	  echo '  Generating build number'
-	  . $(src)/scripts/mkversion > .tmp_version
-	  mv -f .tmp_version .version
-	  $(Q)$(MAKE) $(build)=init
+	set -e;								\
+	$(if $(filter .tmp_kallsyms%,$^),,				\
+	  echo '  GEN     .version';					\
+	  . $(srctree)/scripts/mkversion > .tmp_version;		\
+	  mv -f .tmp_version .version;					\
+	  $(MAKE) $(build)=init;					\
 	)
-	$(call cmd,vmlinux__)
+	$(call cmd,vmlinux__);						\
 	echo 'cmd_$@ := $(cmd_vmlinux__)' > $(@D)/.$(@F).cmd
 endef
 
-define rule_vmlinux_no_percpu
-	$(rule_vmlinux__)
-	$(NM) $@ | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > System.map
-endef
-
 ifdef CONFIG_SMP
+#	Final awk script makes sure per-cpu vars are in per-cpu section, as
+#	old gcc (eg egcs 2.92.11) ignores section attribute if uninitialized.
+
+check_per_cpu =	$(AWK) -f $(srctree)/scripts/per-cpu-check.awk < System.map
+endif
+
 define rule_vmlinux
-	$(rule_vmlinux_no_percpu)
-	$(AWK) -f $(srctree)/scripts/per-cpu-check.awk < System.map
-endef
-else
-define rule_vmlinux
-	$(rule_vmlinux_no_percpu)
+	$(rule_vmlinux__)
+	$(NM) $@ | grep -v '\(compiled\)\|\(\.o$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | sort > System.map
+	$(check_per_cpu)
 endef
-endif
 
 LDFLAGS_vmlinux += -T arch/$(ARCH)/vmlinux.lds.s
 
@@ -377,7 +373,7 @@ cmd_kallsyms = $(NM) -n $< | scripts/kallsyms > $@
 	$(call cmd,kallsyms)
 
 .tmp_vmlinux1: $(vmlinux-objs) arch/$(ARCH)/vmlinux.lds.s FORCE
-	$(call if_changed_rule,vmlinux__)
+	+$(call if_changed_rule,vmlinux__)
 
 .tmp_vmlinux2: $(vmlinux-objs) .tmp_kallsyms1.o arch/$(ARCH)/vmlinux.lds.s FORCE
 	$(call if_changed_rule,vmlinux__)
@@ -464,7 +460,7 @@ include/config/MARKER: scripts/split-include include/linux/autoconf.h
 # 	if .config is newer than include/linux/autoconf.h, someone tinkered
 # 	with it and forgot to run make oldconfig
 
-include/linux/autoconf.h: .config
+include/linux/autoconf.h: .config scripts
 	$(Q)$(MAKE) $(build)=scripts/kconfig scripts/kconfig/conf
 	./scripts/kconfig/conf -s arch/$(ARCH)/Kconfig
 
@@ -505,8 +501,11 @@ all: modules
 
 #	Build modules
 
+include/linux/compile.h: FORCE
+	$(Q)$(MAKE) $(build)=init include/linux/compile.h
+
 .PHONY: modules
-modules: $(SUBDIRS) $(if $(CONFIG_MODVERSIONS),vmlinux)
+modules: $(SUBDIRS) $(if $(KBUILD_BUILTIN),vmlinux) include/linux/compile.h
 	@echo '  Building modules, stage 2.';
 	$(Q)$(MAKE) -rR -f scripts/Makefile.modpost
 
@@ -571,6 +570,7 @@ define generate-asm-offsets.h
 	 echo "#endif" )
 endef
 
+
 else # ifdef include_config
 
 ifeq ($(filter-out $(noconfig_targets),$(MAKECMDGOALS)),)
@@ -741,10 +741,10 @@ tags: FORCE
 #	If you do a make spec before packing the tarball you can rpm -ta it
 
 spec:
-	. scripts/mkspec >kernel.spec
+	. $(srctree)/scripts/mkspec >kernel.spec
 
 #	Build a tar ball, generate an rpm from it and pack the result
-#	There arw two bits of magic here
+#	There are two bits of magic here
 #	1) The use of /. to avoid tar packing just the symlink
 #	2) Removing the .dep files as they have source paths in them that
 #	   will become invalid
@@ -815,11 +815,6 @@ checkconfig:
 		-name '*.[hcS]' -type f -print | sort \
 		| xargs $(PERL) -w scripts/checkconfig.pl
 
-checkhelp:
-	find * $(RCS_FIND_IGNORE) \
-		-name [cC]onfig.in -print | sort \
-		| xargs $(PERL) -w scripts/checkhelp.pl
-
 checkincludes:
 	find * $(RCS_FIND_IGNORE) \
 		-name '*.[hcS]' -type f -print | sort \

arch/i386/kernel/cpu/cpufreq/Kconfig

@@ -18,20 +18,6 @@ config CPU_FREQ
 
 source "drivers/cpufreq/Kconfig"
 
-config CPU_FREQ_24_API
-	bool "/proc/sys/cpu/ interface (2.4. / OLD)"
-	depends on CPU_FREQ
-	help
-	  This enables the /proc/sys/cpu/ sysctl interface for controlling
-	  CPUFreq, as known from the 2.4.-kernel patches for CPUFreq. 2.5
-	  uses a sysfs interface instead. Please note that some drivers do 
-	  not work well with the 2.4. /proc/sys/cpu sysctl interface,
-	  so if in doubt, say N here.
-
-	  For details, take a look at linux/Documentation/cpufreq. 
-
-	  If in doubt, say N.
-
 config CPU_FREQ_TABLE
        tristate "CPU frequency table helpers"
        depends on CPU_FREQ
@@ -56,6 +42,16 @@ config X86_ACPI_CPUFREQ
 
 	  If in doubt, say N.
 
+config X86_ACPI_CPUFREQ_PROC_INTF
+        bool "/proc/acpi/processor/../performance interface (deprecated)"
+	depends on X86_ACPI_CPUFREQ && PROC_FS
+	help
+	  This enables the deprecated /proc/acpi/processor/../performance 
+	  interface. While it is helpful for debugging, the generic,
+	  cross-architecture cpufreq interfaces should be used.
+
+	  If in doubt, say N.
+
 config ELAN_CPUFREQ
 	tristate "AMD Elan"
 	depends on CPU_FREQ_TABLE && MELAN
@@ -139,7 +135,7 @@ config X86_LONGRUN
 
 config X86_LONGHAUL
 	tristate "VIA Cyrix III Longhaul"
-	depends on CPU_FREQ
+	depends on CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for VIA Samuel/CyrixIII, 
 	  VIA Cyrix Samuel/C3, VIA Cyrix Ezra and VIA Cyrix Ezra-T 

arch/i386/kernel/cpu/cpufreq/elanfreq.c

@@ -31,15 +31,9 @@
 #define REG_CSCIR 0x22 		/* Chip Setup and Control Index Register    */
 #define REG_CSCDR 0x23		/* Chip Setup and Control Data  Register    */
 
-static struct cpufreq_driver *elanfreq_driver;
-
 /* Module parameter */
 static int max_freq;
 
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Robert Schwebel <r.schwebel@pengutronix.de>, Sven Geggus <sven@geggus.net>");
-MODULE_DESCRIPTION("cpufreq driver for AMD's Elan CPUs");
-
 struct s_elan_multiplier {
 	int clock;		/* frequency in kHz                         */
 	int val40h;		/* PMU Force Mode register                  */
@@ -127,11 +121,6 @@ static void elanfreq_set_cpu_state (unsigned int state) {
 
 	struct cpufreq_freqs    freqs;
 
-	if (!elanfreq_driver) {
-		printk(KERN_ERR "cpufreq: initialization problem or invalid target frequency\n");
-		return;
-	}
-
 	freqs.old = elanfreq_get_cpu_frequency();
 	freqs.new = elan_multiplier[state].clock;
 	freqs.cpu = 0; /* elanfreq.c is UP only driver */
@@ -187,11 +176,13 @@ static int elanfreq_verify (struct cpufreq_policy *policy)
 	return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]);
 }
 
-static int elanfreq_setpolicy (struct cpufreq_policy *policy)
+static int elanfreq_target (struct cpufreq_policy *policy, 
+			    unsigned int target_freq, 
+			    unsigned int relation)
 {
 	unsigned int    newstate = 0;
 
-	if (cpufreq_frequency_table_setpolicy(policy, &elanfreq_table[0], &newstate))
+	if (cpufreq_frequency_table_target(policy, &elanfreq_table[0], target_freq, relation, &newstate))
 		return -EINVAL;
 
 	elanfreq_set_cpu_state(newstate);
@@ -204,6 +195,35 @@ static int elanfreq_setpolicy (struct cpufreq_policy *policy)
  *	Module init and exit code
  */
 
+static int elanfreq_cpu_init(struct cpufreq_policy *policy)
+{
+	struct cpuinfo_x86 *c = cpu_data;
+	unsigned int i;
+
+	/* capability check */
+	if ((c->x86_vendor != X86_VENDOR_AMD) ||
+	    (c->x86 != 4) || (c->x86_model!=10))
+		return -ENODEV;
+
+	/* max freq */
+	if (!max_freq)
+		max_freq = elanfreq_get_cpu_frequency();
+
+	/* table init */
+ 	for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) {
+		if (elanfreq_table[i].frequency > max_freq)
+			elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+	}
+
+	/* cpuinfo and default policy values */
+	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cur = elanfreq_get_cpu_frequency();
+
+	return cpufreq_frequency_table_cpuinfo(policy, &elanfreq_table[0]);;
+}
+
+
 #ifndef MODULE
 /**
  * elanfreq_setup - elanfreq command line parameter parsing
@@ -224,11 +244,18 @@ static int __init elanfreq_setup(char *str)
 __setup("elanfreq=", elanfreq_setup);
 #endif
 
+
+static struct cpufreq_driver elanfreq_driver = {
+	.verify 	= elanfreq_verify,
+	.target 	= elanfreq_target,
+	.init		= elanfreq_cpu_init,
+	.name		= "elanfreq",
+};
+
+
 static int __init elanfreq_init(void) 
 {	
 	struct cpuinfo_x86 *c = cpu_data;
-	struct cpufreq_driver *driver;
-	int ret, i;
 
 	/* Test if we have the right hardware */
 	if ((c->x86_vendor != X86_VENDOR_AMD) ||
@@ -238,63 +265,22 @@ static int __init elanfreq_init(void)
                 return -ENODEV;
 	}
 	
-	driver = kmalloc(sizeof(struct cpufreq_driver) +
-			 NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL);
-	if (!driver)
-		return -ENOMEM;
-	memset(driver, 0, sizeof(struct cpufreq_driver) +
-			NR_CPUS * sizeof(struct cpufreq_policy));
-
-	driver->policy = (struct cpufreq_policy *) (driver + 1);
-
-	if (!max_freq)
-		max_freq = elanfreq_get_cpu_frequency();
-
-	/* table init */
- 	for (i=0; (elanfreq_table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		if (elanfreq_table[i].frequency > max_freq)
-			elanfreq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
-	}
-
-#ifdef CONFIG_CPU_FREQ_24_API
-	driver->cpu_cur_freq[0] = elanfreq_get_cpu_frequency();
-#endif
-
-	driver->verify        = &elanfreq_verify;
-	driver->setpolicy     = &elanfreq_setpolicy;
-	strncpy(driver->name, "elanfreq", CPUFREQ_NAME_LEN);
-
-	driver->policy[0].cpu    = 0;
-	ret = cpufreq_frequency_table_cpuinfo(&driver->policy[0], &elanfreq_table[0]);
-	if (ret) {
-		kfree(driver);
-		return ret;
-	}
-	driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE;
-	driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-
-	elanfreq_driver = driver;
-
-	ret = cpufreq_register(driver);
-	if (ret) {
-		elanfreq_driver = NULL;
-		kfree(driver);
-	}
-
-	return ret;
+	return cpufreq_register_driver(&elanfreq_driver);
 }
 
 
 static void __exit elanfreq_exit(void) 
 {
-	if (elanfreq_driver) {
-		cpufreq_unregister();
-		kfree(elanfreq_driver);
-	}
+	cpufreq_unregister_driver(&elanfreq_driver);
 }
 
-module_init(elanfreq_init);
-module_exit(elanfreq_exit);
 
 MODULE_PARM (max_freq, "i");
 
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Robert Schwebel <r.schwebel@pengutronix.de>, Sven Geggus <sven@geggus.net>");
+MODULE_DESCRIPTION("cpufreq driver for AMD's Elan CPUs");
+
+module_init(elanfreq_init);
+module_exit(elanfreq_exit);
+

arch/i386/kernel/cpu/cpufreq/gx-suspmod.c

@@ -116,7 +116,6 @@ struct gxfreq_params {
 	struct pci_dev *cs55x0;
 };
 
-static struct cpufreq_driver *gx_driver;
 static struct gxfreq_params *gx_params;
 static int stock_freq;
 
@@ -345,7 +344,7 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy)
 	unsigned int tmp_freq = 0;
 	u8 tmp1, tmp2;
 
-        if (!gx_driver || !stock_freq || !policy)
+        if (!stock_freq || !policy)
                 return -EINVAL;
 
 	policy->cpu = 0;
@@ -375,33 +374,71 @@ static int cpufreq_gx_verify(struct cpufreq_policy *policy)
 }
 
 /*
- *      cpufreq_gx_setpolicy:  
+ *      cpufreq_gx_target:  
  *
  */
-static int cpufreq_gx_setpolicy(struct cpufreq_policy *policy)
+static int cpufreq_gx_target(struct cpufreq_policy *policy,
+			     unsigned int target_freq,
+			     unsigned int relation)
 {
+	u8 tmp1, tmp2;
+	unsigned int tmp_freq;
 
-        if (!gx_driver || !stock_freq || !policy)
+        if (!stock_freq || !policy)
                 return -EINVAL;
 
 	policy->cpu = 0;
 
-	if (policy->policy == CPUFREQ_POLICY_POWERSAVE) {
-		/* here we need to make sure that we don't set the
-		 * frequency below policy->min (see comment in
-		 * cpufreq_gx_verify() - guarantee of processing 
-		 * capacity.
-		 */
-		u8 tmp1, tmp2;
-		unsigned int tmp_freq = gx_validate_speed(policy->min, &tmp1, &tmp2);
+	tmp_freq = gx_validate_speed(target_freq, &tmp1, &tmp2);
 	while (tmp_freq < policy->min) {
 		tmp_freq += stock_freq / max_duration;
 		tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2);
 	}
+	while (tmp_freq > policy->max) {
+		tmp_freq -= stock_freq / max_duration;
+		tmp_freq = gx_validate_speed(tmp_freq, &tmp1, &tmp2);
+	}
+
 	gx_set_cpuspeed(tmp_freq);
+
+	return 0;
+}
+
+static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
+{
+	int maxfreq, curfreq;
+
+	if (!policy || policy->cpu != 0)
+		return -ENODEV;
+
+	/* determine maximum frequency */
+	if (pci_busclk) {
+		maxfreq = pci_busclk * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
+	} else if (cpu_khz) {
+		maxfreq = cpu_khz;
 	} else {
-		gx_set_cpuspeed(policy->max);
+		maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
 	}
+	stock_freq = maxfreq;
+	curfreq = gx_get_cpuspeed();
+
+	dprintk("cpu max frequency is %d.\n", maxfreq);
+	dprintk("cpu current frequency is %dkHz.\n",curfreq);
+
+	/* setup basic struct for cpufreq API */
+	policy->cpu = 0;
+
+	if (max_duration < POLICY_MIN_DIV)
+		policy->min = maxfreq / max_duration;
+	else
+		policy->min = maxfreq / POLICY_MIN_DIV;
+	policy->max = maxfreq;
+	policy->cur = curfreq;
+	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
+	policy->cpuinfo.min_freq = maxfreq / max_duration;
+	policy->cpuinfo.max_freq = maxfreq;
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+
 	return 0;
 }
 
@@ -409,11 +446,16 @@ static int cpufreq_gx_setpolicy(struct cpufreq_policy *policy)
  * cpufreq_gx_init:
  *   MediaGX/Geode GX initilize cpufreq driver
  */
+static struct cpufreq_driver gx_suspmod_driver = {
+	.verify		= cpufreq_gx_verify,
+	.target		= cpufreq_gx_target,
+	.init		= cpufreq_gx_cpu_init,
+	.name		= "gx-suspmod",
+};
 
 static int __init cpufreq_gx_init(void)
 {
-	int maxfreq,ret,curfreq;
- 	struct cpufreq_driver *driver;
+	int ret;
 	struct gxfreq_params *params;
 	struct pci_dev *gx_pci;
 	u32 class_rev;
@@ -428,21 +470,13 @@ static int __init cpufreq_gx_init(void)
 
 	dprintk("geode suspend modulation available.\n");
 
-	driver = kmalloc(sizeof(struct cpufreq_driver) + NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL);
-	if (driver == NULL) 
-		return -ENOMEM;
-	memset(driver, 0, sizeof(struct cpufreq_driver) +
-			NR_CPUS * sizeof(struct cpufreq_policy));
-
 	params = kmalloc(sizeof(struct gxfreq_params), GFP_KERNEL);
-	if (params == NULL) {
-		kfree(driver);
+	if (params == NULL)
 		return -ENOMEM;
-	}
 	memset(params, 0, sizeof(struct gxfreq_params));
 
-	driver->policy = (struct cpufreq_policy *)(driver + 1);
 	params->cs55x0 = gx_pci;
+	gx_params = params;
 
 	/* keep cs55x0 configurations */
 	pci_read_config_byte(params->cs55x0, PCI_SUSCFG, &(params->pci_suscfg));
@@ -453,45 +487,7 @@ static int __init cpufreq_gx_init(void)
         pci_read_config_dword(params->cs55x0, PCI_CLASS_REVISION, &class_rev);
 	params->pci_rev = class_rev && 0xff;
 
-	gx_params = params;
-
-	/* determine maximum frequency */
-	if (pci_busclk) {
-		maxfreq = pci_busclk * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
-	} else if (cpu_khz) {
-		maxfreq = cpu_khz;
-	} else {
-		maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
-	}
-	stock_freq = maxfreq;
-	curfreq = gx_get_cpuspeed();
-
-	dprintk("cpu max frequency is %d.\n", maxfreq);
-	dprintk("cpu current frequency is %dkHz.\n",curfreq);
-
-	/* setup basic struct for cpufreq API */
-#ifdef CONFIG_CPU_FREQ_24_API
-	driver->cpu_cur_freq[0] = curfreq;
-#endif
-	driver->policy[0].cpu = 0;
-
-	if (max_duration < POLICY_MIN_DIV)
-		driver->policy[0].min = maxfreq / max_duration;
-	else
-		driver->policy[0].min = maxfreq / POLICY_MIN_DIV;
-	driver->policy[0].max = maxfreq;
-	driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE;
-	driver->policy[0].cpuinfo.min_freq = maxfreq / max_duration;
-	driver->policy[0].cpuinfo.max_freq = maxfreq;
-	driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	driver->verify = &cpufreq_gx_verify;
-	driver->setpolicy = &cpufreq_gx_setpolicy;
-	strncpy(driver->name, "gx-suspmod", CPUFREQ_NAME_LEN);
-
-	gx_driver = driver;
-
-	if ((ret = cpufreq_register(driver))) { 
-		kfree(driver);
+	if ((ret = cpufreq_register_driver(&gx_suspmod_driver))) { 
 		kfree(params);
 		return ret;                   /* register error! */
 	}
@@ -501,13 +497,8 @@ static int __init cpufreq_gx_init(void)
 
 static void __exit cpufreq_gx_exit(void)
 {
-	if (gx_driver) {
-		/* disable throttling */
-		gx_set_cpuspeed(stock_freq);
-		cpufreq_unregister();
-		kfree(gx_driver);
+	cpufreq_unregister_driver(&gx_suspmod_driver);
 	kfree(gx_params);
-	}
 }
 
 MODULE_AUTHOR ("Hiroshi Miura <miura@da-cha.org>");

arch/i386/kernel/cpu/cpufreq/longrun.c

 /*
- *  $Id: longrun.c,v 1.22 2003/02/10 17:31:50 db Exp $
+ *  $Id: longrun.c,v 1.25 2003/02/28 16:03:50 db Exp $
  *
  * (C) 2002 - 2003  Dominik Brodowski <linux@brodo.de>
  *
@@ -244,10 +244,6 @@ static int longrun_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 	longrun_get_policy(policy);
 	
-#ifdef CONFIG_CPU_FREQ_24_API
-	longrun_driver.cpu_cur_freq[policy->cpu] = longrun_low_freq; /* dummy value */
-#endif
-
 	return 0;
 }
 

arch/i386/kernel/cpu/cpufreq/p4-clockmod.c

@@ -49,8 +49,6 @@ enum {
 static int has_N44_O17_errata[NR_CPUS];
 static int stock_freq;
 
-static struct cpufreq_driver p4clockmod_driver;
-
 
 static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate)
 {
@@ -220,9 +218,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 	/* cpuinfo and default policy values */
 	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
 	policy->cpuinfo.transition_latency = 1000;
-#ifdef CONFIG_CPU_FREQ_24_API
-	p4clockmod_driver.cpu_cur_freq[policy->cpu] = stock_freq;
-#endif
+	policy->cur = stock_freq;
 
 	return cpufreq_frequency_table_cpuinfo(policy, &p4clockmod_table[0]);
 }

arch/i386/kernel/cpu/cpufreq/powernow-k6.c

 /*
- *  $Id: powernow-k6.c,v 1.36 2002/10/31 21:17:40 db Exp $
+ *  $Id: powernow-k6.c,v 1.48 2003/02/22 10:23:46 db Exp $
  *  This file was part of Powertweak Linux (http://powertweak.sf.net)
  *  and is shared with the Linux Kernel module.
  *
- *  (C) 2000-2002  Dave Jones, Arjan van de Ven, Janne Pnkl, Dominik Brodowski.
+ *  (C) 2000-2003  Dave Jones, Arjan van de Ven, Janne Pnkl, Dominik Brodowski.
  *
  *  Licensed under the terms of the GNU GPL License version 2.
  *
@@ -25,7 +25,6 @@
 #define POWERNOW_IOPORT 0xfff0         /* it doesn't matter where, as long
 					  as it is unused */
 
-static struct cpufreq_driver		*powernow_driver;
 static unsigned int                     busfreq;   /* FSB, in 10 kHz */
 static unsigned int                     max_multiplier;
 
@@ -77,8 +76,8 @@ static void powernow_k6_set_state (unsigned int best_i)
 	unsigned long           msrval;
 	struct cpufreq_freqs    freqs;
 
-	if (!powernow_driver) {
-		printk(KERN_ERR "cpufreq: initialization problem or invalid target frequency\n");
+	if (clock_ratio[best_i].index > max_multiplier) {
+		printk(KERN_ERR "cpufreq: invalid target frequency\n");
 		return;
 	}
 
@@ -126,11 +125,13 @@ static int powernow_k6_verify(struct cpufreq_policy *policy)
  *
  * sets a new CPUFreq policy
  */
-static int powernow_k6_setpolicy (struct cpufreq_policy *policy)
+static int powernow_k6_target (struct cpufreq_policy *policy,
+			       unsigned int target_freq,
+			       unsigned int relation)
 {
 	unsigned int    newstate = 0;
 
-	if (cpufreq_frequency_table_setpolicy(policy, &clock_ratio[0], &newstate))
+	if (cpufreq_frequency_table_target(policy, &clock_ratio[0], target_freq, relation, &newstate))
 		return -EINVAL;
 
 	powernow_k6_set_state(newstate);
@@ -139,43 +140,22 @@ static int powernow_k6_setpolicy (struct cpufreq_policy *policy)
 }
 
 
-/**
- * powernow_k6_init - initializes the k6 PowerNow! CPUFreq driver
- *
- *   Initializes the K6 PowerNow! support. Returns -ENODEV on unsupported
- * devices, -EINVAL or -ENOMEM on problems during initiatization, and zero
- * on success.
- */
-static int __init powernow_k6_init(void)
+static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 {
 	struct cpuinfo_x86 *c = cpu_data;
-	struct cpufreq_driver   *driver;
-	unsigned int            result;
 	unsigned int i;
 
+	/* capability check */
 	if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) ||
 	    ((c->x86_model != 12) && (c->x86_model != 13)))
 		return -ENODEV;
+	if (policy->cpu != 0)
+		return -ENODEV;
 
+	/* get frequencies */
 	max_multiplier = powernow_k6_get_cpu_multiplier();
 	busfreq = cpu_khz / max_multiplier;
 
-	if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) {
-		printk("cpufreq: PowerNow IOPORT region already used.\n");
-		return -EIO;
-	}
-
-	/* initialization of main "cpufreq" code*/
-	driver = kmalloc(sizeof(struct cpufreq_driver) +
-			 NR_CPUS * sizeof(struct cpufreq_policy), GFP_KERNEL);
-	if (!driver) {
-		release_region (POWERNOW_IOPORT, 16);
-		return -ENOMEM;
-	}
-	memset(driver, 0, sizeof(struct cpufreq_driver) +
-			NR_CPUS * sizeof(struct cpufreq_policy));
-	driver->policy = (struct cpufreq_policy *) (driver + 1);
-
 	/* table init */
  	for (i=0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) {
 		if (clock_ratio[i].index > max_multiplier)
@@ -184,33 +164,61 @@ static int __init powernow_k6_init(void)
 			clock_ratio[i].frequency = busfreq * clock_ratio[i].index;
 	}
 
-	driver->verify        = &powernow_k6_verify;
-	driver->setpolicy     = &powernow_k6_setpolicy;
-	strncpy(driver->name, "powernow-k6", CPUFREQ_NAME_LEN);
-
 	/* cpuinfo and default policy values */
-	driver->policy[0].cpu    = 0;
-	driver->policy[0].cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	driver->policy[0].policy = CPUFREQ_POLICY_PERFORMANCE;
-#ifdef CONFIG_CPU_FREQ_24_API
-	driver->cpu_cur_freq[0]  = busfreq * max_multiplier;
-#endif
-	result = cpufreq_frequency_table_cpuinfo(&driver->policy[0], &clock_ratio[0]);
-	if (result) {
-		kfree(driver);
-		return result;
+	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
+	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
+	policy->cur = busfreq * max_multiplier;
+
+	return cpufreq_frequency_table_cpuinfo(policy, &clock_ratio[0]);
+}
+
+
+static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
+{
+	unsigned int i;
+	for (i=0; i<8; i++) {
+		if (i==max_multiplier)
+			powernow_k6_set_state(i);
 	}
+	return 0;
+}
+
+
+static struct cpufreq_driver powernow_k6_driver = {
+	.verify 	= powernow_k6_verify,
+	.target 	= powernow_k6_target,
+	.init		= powernow_k6_cpu_init,
+	.exit		= powernow_k6_cpu_exit,
+	.name		= "powernow-k6",
+};
 
-	powernow_driver = driver;
 
-	result = cpufreq_register(driver);
-	if (result) {
+/**
+ * powernow_k6_init - initializes the k6 PowerNow! CPUFreq driver
+ *
+ *   Initializes the K6 PowerNow! support. Returns -ENODEV on unsupported
+ * devices, -EINVAL or -ENOMEM on problems during initiatization, and zero
+ * on success.
+ */
+static int __init powernow_k6_init(void)
+{	
+	struct cpuinfo_x86      *c = cpu_data;
+
+	if ((c->x86_vendor != X86_VENDOR_AMD) || (c->x86 != 5) ||
+		((c->x86_model != 12) && (c->x86_model != 13)))
+		return -ENODEV;
+
+	if (!request_region(POWERNOW_IOPORT, 16, "PowerNow!")) {
+		printk("cpufreq: PowerNow IOPORT region already used.\n");
+		return -EIO;
+	}
+
+	if (cpufreq_register_driver(&powernow_k6_driver)) {
 		release_region (POWERNOW_IOPORT, 16);
-		powernow_driver = NULL;
-		kfree(driver);
+		return -EINVAL;
 	}
 
-	return result;
+	return 0;
 }
 
 
@@ -221,20 +229,14 @@ static int __init powernow_k6_init(void)
  */
 static void __exit powernow_k6_exit(void)
 {
-	unsigned int i;
-
-	if (powernow_driver) {
-		for (i=0;i<8;i++)
-			if (clock_ratio[i].index == max_multiplier)
-				powernow_k6_set_state(i);		
-		cpufreq_unregister();
-		kfree(powernow_driver);
-	}
+	cpufreq_unregister_driver(&powernow_k6_driver);
+	release_region (POWERNOW_IOPORT, 16);
 }
 
 
 MODULE_AUTHOR ("Arjan van de Ven <arjanv@redhat.com>, Dave Jones <davej@suse.de>, Dominik Brodowski <linux@brodo.de>");
 MODULE_DESCRIPTION ("PowerNow! driver for AMD K6-2+ / K6-3+ processors.");
 MODULE_LICENSE ("GPL");
+
 module_init(powernow_k6_init);
 module_exit(powernow_k6_exit);

arch/i386/kernel/cpu/cpufreq/powernow-k7.c

 /*
- *  $Id: powernow-k7.c,v 1.31 2003/02/12 21:16:35 davej Exp $
+ *  $Id: powernow-k7.c,v 1.34 2003/02/22 10:23:46 db Exp $
  *
  *  (C) 2003 Dave Jones <davej@suse.de>
  *
@@ -72,8 +72,6 @@ static int fid_codes[32] = {
     150, 225, 160, 165, 170, 180, -1, -1,
 };
 
-static struct cpufreq_driver powernow_driver;
-
 static struct cpufreq_frequency_table *powernow_table;
 
 static unsigned int can_scale_bus;
@@ -369,13 +367,18 @@ static int __init powernow_cpu_init (struct cpufreq_policy *policy)
 
 	policy->policy = CPUFREQ_POLICY_PERFORMANCE;
 	policy->cpuinfo.transition_latency = latency;
-#ifdef CONFIG_CPU_FREQ_24_API
-	powernow_driver.cpu_cur_freq[policy->cpu] = maximum_speed;
-#endif
+	policy->cur = maximum_speed;
 
 	return cpufreq_frequency_table_cpuinfo(policy, powernow_table);
 }
 
+static struct cpufreq_driver powernow_driver = {
+	.verify 	= powernow_verify,
+	.target 	= powernow_target,
+	.init		= powernow_cpu_init,
+	.name		= "powernow-k7",
+};
+
 static int __init powernow_init (void)
 {
 	if (check_powernow()==0)
@@ -391,14 +394,6 @@ static void __exit powernow_exit (void)
 		kfree(powernow_table);
 }
 
-static struct cpufreq_driver powernow_driver = {
-	.verify 	= powernow_verify,
-	.target 	= powernow_target,
-	.init		= powernow_cpu_init,
-	.name		= "powernow-k7",
-};
-
-
 MODULE_AUTHOR ("Dave Jones <davej@suse.de>");
 MODULE_DESCRIPTION ("Powernow driver for AMD K7 processors.");
 MODULE_LICENSE ("GPL");

arch/i386/kernel/cpu/cpufreq/speedstep.c

 /*
- *  $Id: speedstep.c,v 1.68 2003/01/20 17:31:47 db Exp $
+ *  $Id: speedstep.c,v 1.70 2003/02/22 10:23:46 db Exp $
  *
  * (C) 2001  Dave Jones, Arjan van de ven.
  * (C) 2002 - 2003  Dominik Brodowski <linux@brodo.de>
@@ -30,8 +30,6 @@
 #include <asm/msr.h>
 
 
-static struct cpufreq_driver		speedstep_driver;
-
 /* speedstep_chipset:
  *   It is necessary to know which chipset is used. As accesses to 
  * this device occur at various places in this module, we need a 
@@ -629,9 +627,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 	policy->policy = (speed == speedstep_low_freq) ? 
 		CPUFREQ_POLICY_POWERSAVE : CPUFREQ_POLICY_PERFORMANCE;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-#ifdef CONFIG_CPU_FREQ_24_API
-	speedstep_driver.cpu_cur_freq[policy->cpu] = speed;
-#endif
+	policy->cur = speed;
 
 	return cpufreq_frequency_table_cpuinfo(policy, &speedstep_freqs[0]);
 }
@@ -686,7 +682,7 @@ static int __init speedstep_init(void)
 		return -ENODEV;
 	}
 
-	dprintk(KERN_INFO "cpufreq: Intel(R) SpeedStep(TM) support $Revision: 1.68 $\n");
+	dprintk(KERN_INFO "cpufreq: Intel(R) SpeedStep(TM) support $Revision: 1.70 $\n");
 
 	/* activate speedstep support */
 	if (speedstep_activate())

drivers/cpufreq/Kconfig

@@ -9,3 +9,30 @@ config CPU_FREQ_PROC_INTF
 	  For details, take a look at linux/Documentation/cpufreq. 
 	  
 	  If in doubt, say N.
+
+config CPU_FREQ_GOV_USERSPACE
+       tristate "'userspace' governor for userspace frequency scaling"
+       depends on CPU_FREQ
+       help
+	  Enable this cpufreq governor when you either want to set the
+	  CPU frequency manually or when an userspace programm shall
+          be able to set the CPU dynamically, like on LART 
+	  ( http://www.lart.tudelft.nl/ )
+
+	  For details, take a look at linux/Documentation/cpufreq. 
+
+	  If in doubt, say Y.
+
+config CPU_FREQ_24_API
+	bool "/proc/sys/cpu/ interface (2.4. / OLD)"
+	depends on CPU_FREQ && SYSCTL && CPU_FREQ_GOV_USERSPACE
+	help
+	  This enables the /proc/sys/cpu/ sysctl interface for controlling
+	  the CPUFreq,"userspace" governor. This is the same interface
+	  as known from the.4.-kernel patches for CPUFreq, and offers
+	  the same functionality as long as "userspace" is the
+	  selected governor for the specified CPU.
+	
+	  For details, take a look at linux/Documentation/cpufreq. 
+
+	  If in doubt, say N.

drivers/cpufreq/Makefile

 #CPUfreq governors and cross-arch helpers
 obj-$(CONFIG_CPU_FREQ_TABLE)		+= freq_table.o
 obj-$(CONFIG_CPU_FREQ_PROC_INTF)	+= proc_intf.o
+obj-$(CONFIG_CPU_FREQ_GOV_USERSPACE)	+= userspace.o

drivers/net/via-rhine.c

@@ -108,11 +108,18 @@
 	- New reset code uses "force reset" cmd on Rhine-II
 	- Various clean ups
 
+	LK1.1.17 (Roger Luethi)
+	- Fix race in via_rhine_start_tx()
+	- On errors, wait for Tx engine to turn off before scavenging
+	- Handle Tx descriptor write-back race on Rhine-II
+	- Force flushing for PCI posted writes
+	- More reset code changes
+
 */
 
 #define DRV_NAME	"via-rhine"
-#define DRV_VERSION	"1.1.16"
-#define DRV_RELDATE	"February-15-2003"
+#define DRV_VERSION	"1.1.17"
+#define DRV_RELDATE	"March-1-2003"
 
 
 /* A few user-configurable values.
@@ -562,7 +569,7 @@ static void wait_for_reset(struct net_device *dev, int chip_id, char *name)
 
 		/* VT86C100A may need long delay after reset (dlink) */
 		/* Seen on Rhine-II as well (rl) */
-		while ((readw(ioaddr + ChipCmd) & CmdReset) && --boguscnt);
+		while ((readw(ioaddr + ChipCmd) & CmdReset) && --boguscnt)
 			udelay(5);
 
 	}

include/linux/cpufreq.h

@@ -62,6 +62,8 @@ struct cpufreq_policy {
 	unsigned int            cpu;    /* cpu nr or CPUFREQ_ALL_CPUS */
 	unsigned int            min;    /* in kHz */
 	unsigned int            max;    /* in kHz */
+	unsigned int            cur;    /* in kHz, only needed if cpufreq
+					 * governors are used */
         unsigned int            policy; /* see above */
 	struct cpufreq_governor *governor; /* see below */
 	struct cpufreq_cpuinfo  cpuinfo;     /* see above */
@@ -164,10 +166,6 @@ struct cpufreq_driver {
 	/* optional, for the moment */
 	int	(*init)		(struct cpufreq_policy *policy);
 	int	(*exit)		(struct cpufreq_policy *policy);
-	/* 2.4. compatible API */
-#ifdef CONFIG_CPU_FREQ_24_API
-	unsigned int		cpu_cur_freq[NR_CPUS];
-#endif
 };
 
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
@@ -208,14 +206,19 @@ int cpufreq_restore(void);
 /* the proc_intf.c needs this */
 int cpufreq_parse_governor (char *str_governor, unsigned int *policy, struct cpufreq_governor **governor);
 
-#ifdef CONFIG_CPU_FREQ_24_API
+#if defined(CONFIG_CPU_FREQ_GOV_USERSPACE) || defined(CONFIG_CPU_FREQ_GOV_USERSPACE_MODULE)
 /*********************************************************************
- *                        CPUFREQ 2.4. INTERFACE                     *
+ *                      CPUFREQ USERSPACE GOVERNOR                   *
  *********************************************************************/
+extern struct cpufreq_governor cpufreq_gov_userspace;
+int cpufreq_gov_userspace_init(void);
+
 int cpufreq_setmax(unsigned int cpu);
 int cpufreq_set(unsigned int kHz, unsigned int cpu);
 unsigned int cpufreq_get(unsigned int cpu);
 
+#ifdef CONFIG_CPU_FREQ_24_API
+
 /* /proc/sys/cpu */
 enum {
 	CPU_NR   = 1,           /* compatibilty reasons */
@@ -260,45 +263,10 @@ enum {
 	CPU_NR_FREQ = 3,
 };
 
-#define CTL_CPU_VARS_SPEED_MAX(cpunr) { \
-                .ctl_name	= CPU_NR_FREQ_MAX, \
-                .data		= &cpu_max_freq[cpunr], \
-                .procname	= "speed-max", \
-                .maxlen		= sizeof(cpu_max_freq[cpunr]),\
-                .mode		= 0444, \
-                .proc_handler	= proc_dointvec, }
-
-#define CTL_CPU_VARS_SPEED_MIN(cpunr) { \
-                .ctl_name	= CPU_NR_FREQ_MIN, \
-                .data		= &cpu_min_freq[cpunr], \
-                .procname	= "speed-min", \
-                .maxlen		= sizeof(cpu_min_freq[cpunr]),\
-                .mode		= 0444, \
-                .proc_handler	= proc_dointvec, }
-
-#define CTL_CPU_VARS_SPEED(cpunr) { \
-                .ctl_name	= CPU_NR_FREQ, \
-                .procname	= "speed", \
-                .mode		= 0644, \
-                .proc_handler	= cpufreq_procctl, \
-                .strategy	= cpufreq_sysctl, \
-                .extra1		= (void*) (cpunr), }
-
-#define CTL_TABLE_CPU_VARS(cpunr) static ctl_table ctl_cpu_vars_##cpunr[] = {\
-                CTL_CPU_VARS_SPEED_MAX(cpunr), \
-                CTL_CPU_VARS_SPEED_MIN(cpunr), \
-                CTL_CPU_VARS_SPEED(cpunr),  \
-                { .ctl_name = 0, }, }
-
-/* the ctl_table entry for each CPU */
-#define CPU_ENUM(s) { \
-                .ctl_name	= (CPU_NR + s), \
-                .procname	= #s, \
-                .mode		= 0555, \
-                .child		= ctl_cpu_vars_##s }
-
 #endif /* CONFIG_CPU_FREQ_24_API */
 
+#endif /* CONFIG_CPU_FREQ_GOV_USERSPACE */
+
 
 /*********************************************************************
  *                     FREQUENCY TABLE HELPERS                       *

include/linux/module.h

@@ -150,13 +150,7 @@ void *__symbol_get(const char *symbol);
 void *__symbol_get_gpl(const char *symbol);
 #define symbol_get(x) ((typeof(&x))(__symbol_get(MODULE_SYMBOL_PREFIX #x)))
 
-#ifdef __GENKSYMS__
-
-/* genksyms doesn't handle GPL-only symbols yet */
-#define EXPORT_SYMBOL_GPL EXPORT_SYMBOL
-	
-#else
-
+#ifndef __GENKSYMS__
 #ifdef CONFIG_MODVERSIONS
 /* Mark the CRC weak since genksyms apparently decides not to
  * generate a checksums for some symbols */
@@ -188,7 +182,7 @@ void *__symbol_get_gpl(const char *symbol);
 #endif
 
 /* We don't mangle the actual symbol anymore, so no need for
- * special casing EXPORT_SYMBOL_NOVERS */
+ * special casing EXPORT_SYMBOL_NOVERS.  FIXME: Deprecated */
 #define EXPORT_SYMBOL_NOVERS(sym) EXPORT_SYMBOL(sym)
 
 struct module_ref

init/Makefile

@@ -3,6 +3,9 @@
 #
 
 obj-y			:= main.o version.o do_mounts.o initramfs.o
+obj-$(CONFIG_DEVFS_FS)		+= do_mounts_devfs.o
+obj-$(CONFIG_BLK_DEV_RAM)	+= do_mounts_rd.o
+obj-$(CONFIG_BLK_DEV_MD)	+= do_mounts_md.o
 
 # files to be removed upon make clean
 clean-files := ../include/linux/compile.h
@@ -17,5 +20,5 @@ $(obj)/version.o: include/linux/compile.h
 # actual file if its content has changed.
 
 include/linux/compile.h: FORCE
-	@echo -n '  Generating $@'
+	@echo -n '  GEN     $@'
 	@sh $(srctree)/scripts/mkcompile_h $@ "$(UTS_MACHINE)" "$(CONFIG_SMP)" "$(CC) $(CFLAGS)"

init/do_mounts.h

+#define __KERNEL_SYSCALLS__
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/devfs_fs_kernel.h>
+#include <linux/init.h>
+#include <linux/unistd.h>
+#include <linux/slab.h>
+#include <linux/mount.h>
+#include <linux/blk.h>
+#include <linux/root_dev.h>
+
+asmlinkage long sys_unlink(const char *name);
+asmlinkage long sys_mknod(const char *name, int mode, dev_t dev);
+asmlinkage long sys_newstat(char * filename, struct stat * statbuf);
+asmlinkage long sys_ioctl(int fd, int cmd, unsigned long arg);
+asmlinkage long sys_mkdir(const char *name, int mode);
+asmlinkage long sys_rmdir(const char *name);
+asmlinkage long sys_chdir(const char *name);
+asmlinkage long sys_fchdir(int fd);
+asmlinkage long sys_chroot(const char *name);
+asmlinkage long sys_mount(char *dev_name, char *dir_name, char *type,
+				 unsigned long flags, void *data);
+asmlinkage long sys_umount(char *name, int flags);
+
+dev_t name_to_dev_t(char *name);
+void  change_floppy(char *fmt, ...);
+void  mount_block_root(char *name, int flags);
+void  mount_root(void);
+extern int root_mountflags;
+
+#ifdef CONFIG_DEVFS_FS
+
+void mount_devfs(void);
+void umount_devfs(char *path);
+int  create_dev(char *name, dev_t dev, char *devfs_name);
+
+#else
+
+static inline void mount_devfs(void) {}
+static inline void umount_devfs(const char *path) {}
+
+static inline int create_dev(char *name, dev_t dev, char *devfs_name)
+{
+	sys_unlink(name);
+	return sys_mknod(name, S_IFBLK|0600, dev);
+}
+
+#endif
+
+#ifdef CONFIG_BLK_DEV_RAM
+
+int __init rd_load_disk(int n);
+int __init rd_load_image(char *from);
+
+#else
+
+static inline int rd_load_disk(int n) { return 0; }
+static inline int rd_load_image(char *from) { return 0; }
+
+#endif
+
+#ifdef CONFIG_BLK_DEV_INITRD
+
+int __init initrd_load(void);
+
+#else
+
+static inline int initrd_load(void) { return 0; }
+
+#endif
+
+#ifdef CONFIG_BLK_DEV_MD
+
+void md_run_setup(void);
+
+#else
+
+static inline void md_run_setup(void) {}
+
+#endif

scripts/Makefile

@@ -5,7 +5,7 @@
 # fix-dep: 	 Used to generate dependency information during build process
 # split-include: Divide all config symbols up in a number of files in
 #                include/config/...
-# docproc: 	 Preprocess .tmpl file in order to generate .sgml documentation
+# docproc: 	 Preprocess .tmpl file in order to generate .sgml docs
 # conmakehash:	 Create arrays for initializing the kernel console tables
 
 host-progs    := fixdep split-include conmakehash docproc kallsyms modpost \
@@ -14,20 +14,20 @@ build-targets := $(host-progs) empty.o
 
 modpost-objs  := modpost.o file2alias.o
 
-clean-files := elfconfig.h
+subdir-$(CONFIG_MODVERSIONS)	+= genksyms
 
 # Let clean descend into subdirs
-subdir-	:= lxdialog kconfig
+subdir-	+= lxdialog kconfig
 
 # fixdep is needed to compile other host programs
-$(addprefix $(obj)/,$(filter-out fixdep,$(build-targets))): $(obj)/fixdep
+$(addprefix $(obj)/,$(filter-out fixdep,$(build-targets)) $(subdir-y)): $(obj)/fixdep
 
 # dependencies on generated files need to be listed explicitly
 
 $(obj)/modpost.o $(obj)/file2alias.o: $(obj)/elfconfig.h
 
 quiet_cmd_elfconfig = MKELF   $@
-      cmd_elfconfig = $(obj)/mk_elfconfig < $< > $@
+      cmd_elfconfig = $(obj)/mk_elfconfig $(ARCH) < $< > $@
 
 $(obj)/elfconfig.h: $(obj)/empty.o $(obj)/mk_elfconfig FORCE
 	$(call if_changed,elfconfig)

scripts/Makefile.build

@@ -90,8 +90,7 @@ define rule_vcc_o_c
 		mv $(@D)/.tmp_$(@F) $@;					      \
 	else								      \
 		$(CPP) -D__GENKSYMS__ $(c_flags) $<			      \
-		| $(GENKSYMS) -k $(VERSION).$(PATCHLEVEL).$(SUBLEVEL)	      \
-		| sed -n 's/\#define __ver_\([^ 	]*\)[ 	]*\([^ 	]*\)/__crc_\1 = 0x\2 ;/gp' \
+		| $(GENKSYMS)						      \
 		> $(@D)/.tmp_$(@F:.o=.ver);				      \
 									      \
 		$(LD) $(LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) 		      \

scripts/Makefile.clean

@@ -35,7 +35,7 @@ subdir-ymn	:= $(addprefix $(obj)/,$(subdir-ymn))
 
 # ==========================================================================
 
-__clean-files := $(wildcard $(EXTRA_TARGETS) $(host-progs) $(clean-files))
+__clean-files := $(wildcard $(EXTRA_TARGETS) $(host-progs) $(clean-files) $(targets))
 
 quiet_cmd_clean = CLEAN   $(obj)
       cmd_clean = rm -f $(__clean-files); $(clean-rule)

scripts/genksyms/Makefile

+
+host-progs	:= genksyms
+build-targets	:= $(host-progs)
+
+genksyms-objs	:= genksyms.o parse.o lex.o
+
+HOSTCFLAGS_parse.o := -Wno-uninitialized
+
+# dependencies on generated files need to be listed explicitly
+
+$(obj)/lex.o: $(obj)/parse.h $(obj)/keywords.c
+
+
+ifdef GENERATE_PARSER
+
+# gperf
+
+quiet_cmd_keywords.c = GPERF   $@
+      cmd_keywords.c = gperf -L ANSI-C -a -C -E -g -H is_reserved_hash	\
+		       -k 1,3,$$ -N is_reserved_word -p -t $< > $@
+
+$(obj)/keywords.c: $(obj)/keywords.gperf FORCE
+	$(call if_changed,keywords.c)
+
+# flex
+
+quiet_cmd_lex.c = FLEX    $@
+      cmd_lex.c = flex -o$@ -d $(filter-out FORCE,$^)
+
+$(obj)/lex.c: $(obj)/lex.l $(obj)/parse.h FORCE
+	$(call if_changed,lex.c)
+
+# bison
+
+quiet_cmd_parse.c = BISON   $@
+      cmd_parse.c = bison -o$@ -dtv $(filter-out FORCE,$^)
+
+$(obj)/parse.c: $(obj)/parse.y FORCE
+	$(call if_changed,parse.c)
+
+$(obj)/parse.h: $(obj)/parse.c ;
+
+clean-files	+= parse.output
+
+endif
+
+targets += $(obj)/keywords.c $(obj)/lex.c $(obj)/parse.c $(obj)/parse.h

sound/oss/trident.c

@@ -3059,7 +3059,7 @@ static void ali_ac97_set(struct trident_card *card, int secondary, u8 reg, u16 v
         ncount = 10;
 	while(1) {
 		wcontrol = inw(TRID_REG(card, ALI_AC97_WRITE));
-		if(!wcontrol & 0x8000)
+		if(!(wcontrol & 0x8000))
 			break;
 		if(ncount <= 0)
 			break;