Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Merge 'net' bug fixes into 'net-next' as we have patches that will build on top of them. This merge commit includes a change from Emil Goode ([email protected]) that fixes a warning that would have been introduced by this merge. Specifically it fixes the pingv6_ops method ipv6_chk_addr() to add a "const" to the "struct net_device *dev" argument and likewise update the dummy_ipv6_chk_addr() declaration. Signed-off-by: David S. Miller <[email protected]>
rtvt123 · Jun 5, 2013 · 6bc19fb · 6bc19fb
2 parents 11a164a + 4d3797d
commit 6bc19fb
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diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible: Should be "cdns,[<chip>-]{macb|gem}"
   Use "cdns,at91sam9260-macb" Atmel at91sam9260 and at91sam9263 SoCs.
   Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
-  Use "cnds,pc302-gem" for Picochip picoXcell pc302 and later devices based on
+  Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
   the Cadence GEM, or the generic form: "cdns,gem".
 - reg: Address and length of the register set for the device
 - interrupts: Should contain macb interrupt

diff --git a/Documentation/devicetree/bindings/video/simple-framebuffer.txt b/Documentation/devicetree/bindings/video/simple-framebuffer.txt
@@ -0,0 +1,25 @@
+Simple Framebuffer
+
+A simple frame-buffer describes a raw memory region that may be rendered to,
+with the assumption that the display hardware has already been set up to scan
+out from that buffer.
+
+Required properties:
+- compatible: "simple-framebuffer"
+- reg: Should contain the location and size of the framebuffer memory.
+- width: The width of the framebuffer in pixels.
+- height: The height of the framebuffer in pixels.
+- stride: The number of bytes in each line of the framebuffer.
+- format: The format of the framebuffer surface. Valid values are:
+  - r5g6b5 (16-bit pixels, d[15:11]=r, d[10:5]=g, d[4:0]=b).
+
+Example:
+
+	framebuffer {
+		compatible = "simple-framebuffer";
+		reg = <0x1d385000 (1600 * 1200 * 2)>;
+		width = <1600>;
+		height = <1200>;
+		stride = <(1600 * 2)>;
+		format = "r5g6b5";
+	};
diff --git a/Documentation/powerpc/transactional_memory.txt b/Documentation/powerpc/transactional_memory.txt
@@ -147,6 +147,25 @@ Example signal handler:
       fix_the_problem(ucp->dar);
     }
 
+When in an active transaction that takes a signal, we need to be careful with
+the stack.  It's possible that the stack has moved back up after the tbegin.
+The obvious case here is when the tbegin is called inside a function that
+returns before a tend.  In this case, the stack is part of the checkpointed
+transactional memory state.  If we write over this non transactionally or in
+suspend, we are in trouble because if we get a tm abort, the program counter and
+stack pointer will be back at the tbegin but our in memory stack won't be valid
+anymore.
+
+To avoid this, when taking a signal in an active transaction, we need to use
+the stack pointer from the checkpointed state, rather than the speculated
+state.  This ensures that the signal context (written tm suspended) will be
+written below the stack required for the rollback.  The transaction is aborted
+becuase of the treclaim, so any memory written between the tbegin and the
+signal will be rolled back anyway.
+
+For signals taken in non-TM or suspended mode, we use the
+normal/non-checkpointed stack pointer.
+
 
 Failure cause codes used by kernel
 ==================================
@@ -155,14 +174,18 @@ These are defined in <asm/reg.h>, and distinguish different reasons why the
 kernel aborted a transaction:
 
  TM_CAUSE_RESCHED       Thread was rescheduled.
+ TM_CAUSE_TLBI          Software TLB invalide.
  TM_CAUSE_FAC_UNAV      FP/VEC/VSX unavailable trap.
  TM_CAUSE_SYSCALL       Currently unused; future syscalls that must abort
                         transactions for consistency will use this.
  TM_CAUSE_SIGNAL        Signal delivered.
  TM_CAUSE_MISC          Currently unused.
+ TM_CAUSE_ALIGNMENT     Alignment fault.
+ TM_CAUSE_EMULATE       Emulation that touched memory.
 
-These can be checked by the user program's abort handler as TEXASR[0:7].
-
+These can be checked by the user program's abort handler as TEXASR[0:7].  If
+bit 7 is set, it indicates that the error is consider persistent.  For example
+a TM_CAUSE_ALIGNMENT will be persistent while a TM_CAUSE_RESCHED will not.q
 
 GDB
 ===

diff --git a/Documentation/rapidio/rapidio.txt b/Documentation/rapidio/rapidio.txt
@@ -79,20 +79,63 @@ master port that is used to communicate with devices within the network.
 In order to initialize the RapidIO subsystem, a platform must initialize and
 register at least one master port within the RapidIO network. To register mport
 within the subsystem controller driver initialization code calls function
-rio_register_mport() for each available master port. After all active master
-ports are registered with a RapidIO subsystem, the rio_init_mports() routine
-is called to perform enumeration and discovery.
+rio_register_mport() for each available master port.
 
-In the current PowerPC-based implementation a subsys_initcall() is specified to
-perform controller initialization and mport registration. At the end it directly
-calls rio_init_mports() to execute RapidIO enumeration and discovery.
+RapidIO subsystem uses subsys_initcall() or device_initcall() to perform
+controller initialization (depending on controller device type).
+
+After all active master ports are registered with a RapidIO subsystem,
+an enumeration and/or discovery routine may be called automatically or
+by user-space command.
 
 4. Enumeration and Discovery
 ----------------------------
 
-When rio_init_mports() is called it scans a list of registered master ports and
-calls an enumeration or discovery routine depending on the configured role of a
-master port: host or agent.
+4.1 Overview
+------------
+
+RapidIO subsystem configuration options allow users to specify enumeration and
+discovery methods as statically linked components or loadable modules.
+An enumeration/discovery method implementation and available input parameters
+define how any given method can be attached to available RapidIO mports:
+simply to all available mports OR individually to the specified mport device.
+
+Depending on selected enumeration/discovery build configuration, there are
+several methods to initiate an enumeration and/or discovery process:
+
+  (a) Statically linked enumeration and discovery process can be started
+  automatically during kernel initialization time using corresponding module
+  parameters. This was the original method used since introduction of RapidIO
+  subsystem. Now this method relies on enumerator module parameter which is
+  'rio-scan.scan' for existing basic enumeration/discovery method.
+  When automatic start of enumeration/discovery is used a user has to ensure
+  that all discovering endpoints are started before the enumerating endpoint
+  and are waiting for enumeration to be completed.
+  Configuration option CONFIG_RAPIDIO_DISC_TIMEOUT defines time that discovering
+  endpoint waits for enumeration to be completed. If the specified timeout
+  expires the discovery process is terminated without obtaining RapidIO network
+  information. NOTE: a timed out discovery process may be restarted later using
+  a user-space command as it is described later if the given endpoint was
+  enumerated successfully.
+
+  (b) Statically linked enumeration and discovery process can be started by
+  a command from user space. This initiation method provides more flexibility
+  for a system startup compared to the option (a) above. After all participating
+  endpoints have been successfully booted, an enumeration process shall be
+  started first by issuing a user-space command, after an enumeration is
+  completed a discovery process can be started on all remaining endpoints.
+
+  (c) Modular enumeration and discovery process can be started by a command from
+  user space. After an enumeration/discovery module is loaded, a network scan
+  process can be started by issuing a user-space command.
+  Similar to the option (b) above, an enumerator has to be started first.
+
+  (d) Modular enumeration and discovery process can be started by a module
+  initialization routine. In this case an enumerating module shall be loaded
+  first.
+
+When a network scan process is started it calls an enumeration or discovery
+routine depending on the configured role of a master port: host or agent.
 
 Enumeration is performed by a master port if it is configured as a host port by
 assigning a host device ID greater than or equal to zero. A host device ID is
@@ -104,8 +147,58 @@ for it.
 The enumeration and discovery routines use RapidIO maintenance transactions
 to access the configuration space of devices.
 
-The enumeration process is implemented according to the enumeration algorithm
-outlined in the RapidIO Interconnect Specification: Annex I [1].
+4.2 Automatic Start of Enumeration and Discovery
+------------------------------------------------
+
+Automatic enumeration/discovery start method is applicable only to built-in
+enumeration/discovery RapidIO configuration selection. To enable automatic
+enumeration/discovery start by existing basic enumerator method set use boot
+command line parameter "rio-scan.scan=1".
+
+This configuration requires synchronized start of all RapidIO endpoints that
+form a network which will be enumerated/discovered. Discovering endpoints have
+to be started before an enumeration starts to ensure that all RapidIO
+controllers have been initialized and are ready to be discovered. Configuration
+parameter CONFIG_RAPIDIO_DISC_TIMEOUT defines time (in seconds) which
+a discovering endpoint will wait for enumeration to be completed.
+
+When automatic enumeration/discovery start is selected, basic method's
+initialization routine calls rio_init_mports() to perform enumeration or
+discovery for all known mport devices.
+
+Depending on RapidIO network size and configuration this automatic
+enumeration/discovery start method may be difficult to use due to the
+requirement for synchronized start of all endpoints.
+
+4.3 User-space Start of Enumeration and Discovery
+-------------------------------------------------
+
+User-space start of enumeration and discovery can be used with built-in and
+modular build configurations. For user-space controlled start RapidIO subsystem
+creates the sysfs write-only attribute file '/sys/bus/rapidio/scan'. To initiate
+an enumeration or discovery process on specific mport device, a user needs to
+write mport_ID (not RapidIO destination ID) into that file. The mport_ID is a
+sequential number (0 ... RIO_MAX_MPORTS) assigned during mport device
+registration. For example for machine with single RapidIO controller, mport_ID
+for that controller always will be 0.
+
+To initiate RapidIO enumeration/discovery on all available mports a user may
+write '-1' (or RIO_MPORT_ANY) into the scan attribute file.
+
+4.4 Basic Enumeration Method
+----------------------------
+
+This is an original enumeration/discovery method which is available since
+first release of RapidIO subsystem code. The enumeration process is
+implemented according to the enumeration algorithm outlined in the RapidIO
+Interconnect Specification: Annex I [1].
+
+This method can be configured as statically linked or loadable module.
+The method's single parameter "scan" allows to trigger the enumeration/discovery
+process from module initialization routine.
+
+This enumeration/discovery method can be started only once and does not support
+unloading if it is built as a module.
 
 The enumeration process traverses the network using a recursive depth-first
 algorithm. When a new device is found, the enumerator takes ownership of that
@@ -160,6 +253,19 @@ time period. If this wait time period expires before enumeration is completed,
 an agent skips RapidIO discovery and continues with remaining kernel
 initialization.
 
+4.5 Adding New Enumeration/Discovery Method
+-------------------------------------------
+
+RapidIO subsystem code organization allows addition of new enumeration/discovery
+methods as new configuration options without significant impact to to the core
+RapidIO code.
+
+A new enumeration/discovery method has to be attached to one or more mport
+devices before an enumeration/discovery process can be started. Normally,
+method's module initialization routine calls rio_register_scan() to attach
+an enumerator to a specified mport device (or devices). The basic enumerator
+implementation demonstrates this process.
+
 5. References
 -------------
 

diff --git a/Documentation/rapidio/sysfs.txt b/Documentation/rapidio/sysfs.txt
@@ -88,3 +88,20 @@ that exports additional attributes.
 
 IDT_GEN2:
  errlog - reads contents of device error log until it is empty.
+
+
+5. RapidIO Bus Attributes
+-------------------------
+
+RapidIO bus subdirectory /sys/bus/rapidio implements the following bus-specific
+attribute:
+
+  scan - allows to trigger enumeration discovery process from user space. This
+	 is a write-only attribute. To initiate an enumeration or discovery
+	 process on specific mport device, a user needs to write mport_ID (not
+	 RapidIO destination ID) into this file. The mport_ID is a sequential
+	 number (0 ... RIO_MAX_MPORTS) assigned to the mport device.
+	 For example, for a machine with a single RapidIO controller, mport_ID
+	 for that controller always will be 0.
+	 To initiate RapidIO enumeration/discovery on all available mports
+	 a user must write '-1' (or RIO_MPORT_ANY) into this attribute file.
diff --git a/MAINTAINERS b/MAINTAINERS
@@ -3322,11 +3322,12 @@ F:	drivers/net/wan/dlci.c
 F:	drivers/net/wan/sdla.c
 
 FRAMEBUFFER LAYER
-M:	Florian Tobias Schandinat <[email protected]>
+M:	Jean-Christophe Plagniol-Villard <[email protected]>
+M:	Tomi Valkeinen <[email protected]>
 L:	[email protected]
 W:	http://linux-fbdev.sourceforge.net/
 Q:	http://patchwork.kernel.org/project/linux-fbdev/list/
-T:	git git://github.com/schandinat/linux-2.6.git fbdev-next
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/plagnioj/linux-fbdev.git
 S:	Maintained
 F:	Documentation/fb/
 F:	Documentation/devicetree/bindings/fb/
@@ -6084,9 +6085,18 @@ L:	[email protected]
 W:	http://www.parisc-linux.org/
 Q:	http://patchwork.kernel.org/project/linux-parisc/list/
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux.git
 S:	Maintained
 F:	arch/parisc/
+F:	Documentation/parisc/
 F:	drivers/parisc/
+F:	drivers/char/agp/parisc-agp.c
+F:	drivers/input/serio/gscps2.c
+F:	drivers/parport/parport_gsc.*
+F:	drivers/tty/serial/8250/8250_gsc.c
+F:	drivers/video/sti*
+F:	drivers/video/console/sti*
+F:	drivers/video/logo/logo_parisc*
 
 PC87360 HARDWARE MONITORING DRIVER
 M:	Jim Cromie <[email protected]>

diff --git a/Makefile b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 10
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc4
 NAME = Unicycling Gorilla
 
 # *DOCUMENTATION*

diff --git a/arch/arc/boot/dts/abilis_tb100_dvk.dts b/arch/arc/boot/dts/abilis_tb100_dvk.dts
@@ -37,7 +37,7 @@
 
 	soc100 {
 		uart@FF100000 {
-			pinctrl-names = "abilis,simple-default";
+			pinctrl-names = "default";
 			pinctrl-0 = <&pctl_uart0>;
 		};
 		ethernet@FE100000 {

diff --git a/arch/arc/boot/dts/abilis_tb101_dvk.dts b/arch/arc/boot/dts/abilis_tb101_dvk.dts
@@ -37,7 +37,7 @@
 
 	soc100 {
 		uart@FF100000 {
-			pinctrl-names = "abilis,simple-default";
+			pinctrl-names = "default";
 			pinctrl-0 = <&pctl_uart0>;
 		};
 		ethernet@FE100000 {

diff --git a/arch/arc/boot/dts/abilis_tb10x.dtsi b/arch/arc/boot/dts/abilis_tb10x.dtsi
@@ -88,8 +88,7 @@
 		};
 
 		uart@FF100000 {
-			compatible = "snps,dw-apb-uart",
-					"abilis,simple-pinctrl";
+			compatible = "snps,dw-apb-uart";
 			reg = <0xFF100000 0x100>;
 			clock-frequency = <166666666>;
 			interrupts = <25 1>;
@@ -184,8 +183,7 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			cell-index = <1>;
-			compatible = "abilis,tb100-spi",
-					"abilis,simple-pinctrl";
+			compatible = "abilis,tb100-spi";
 			num-cs = <2>;
 			reg = <0xFE011000 0x20>;
 			interrupt-parent = <&tb10x_ictl>;

diff --git a/arch/arc/include/asm/cacheflush.h b/arch/arc/include/asm/cacheflush.h
@@ -93,14 +93,16 @@ static inline int cache_is_vipt_aliasing(void)
 #endif
 }
 
-#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & 3)
+#define CACHE_COLOR(addr)	(((unsigned long)(addr) >> (PAGE_SHIFT)) & 1)
 
 /*
  * checks if two addresses (after page aligning) index into same cache set
  */
 #define addr_not_cache_congruent(addr1, addr2)				\
+({									\
 	cache_is_vipt_aliasing() ? 					\
-		(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0		\
+		(CACHE_COLOR(addr1) != CACHE_COLOR(addr2)) : 0;		\
+})
 
 #define copy_to_user_page(vma, page, vaddr, dst, src, len)		\
 do {									\

diff --git a/arch/arc/include/asm/page.h b/arch/arc/include/asm/page.h
@@ -19,13 +19,6 @@
 #define clear_page(paddr)		memset((paddr), 0, PAGE_SIZE)
 #define copy_page(to, from)		memcpy((to), (from), PAGE_SIZE)
 
-#ifndef CONFIG_ARC_CACHE_VIPT_ALIASING
-
-#define clear_user_page(addr, vaddr, pg)	clear_page(addr)
-#define copy_user_page(vto, vfrom, vaddr, pg)	copy_page(vto, vfrom)
-
-#else	/* VIPT aliasing dcache */
-
 struct vm_area_struct;
 struct page;
 
@@ -35,8 +28,6 @@ void copy_user_highpage(struct page *to, struct page *from,
 			unsigned long u_vaddr, struct vm_area_struct *vma);
 void clear_user_page(void *to, unsigned long u_vaddr, struct page *page);
 
-#endif	/* CONFIG_ARC_CACHE_VIPT_ALIASING */
-
 #undef STRICT_MM_TYPECHECKS
 
 #ifdef STRICT_MM_TYPECHECKS