Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/…

…paulus/powerpc

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (144 commits)
  powerpc/44x: Support 16K/64K base page sizes on 44x
  powerpc: Force memory size to be a multiple of PAGE_SIZE
  powerpc/32: Wire up the trampoline code for kdump
  powerpc/32: Add the ability for a classic ppc kernel to be loaded at 32M
  powerpc/32: Allow __ioremap on RAM addresses for kdump kernel
  powerpc/32: Setup OF properties for kdump
  powerpc/32/kdump: Implement crash_setup_regs() using ppc_save_regs()
  powerpc: Prepare xmon_save_regs for use with kdump
  powerpc: Remove default kexec/crash_kernel ops assignments
  powerpc: Make default kexec/crash_kernel ops implicit
  powerpc: Setup OF properties for ppc32 kexec
  powerpc/pseries: Fix cpu hotplug
  powerpc: Fix KVM build on ppc440
  powerpc/cell: add QPACE as a separate Cell platform
  powerpc/cell: fix build breakage with CONFIG_SPUFS disabled
  powerpc/mpc5200: fix error paths in PSC UART probe function
  powerpc/mpc5200: add rts/cts handling in PSC UART driver
  powerpc/mpc5200: Make PSC UART driver update serial errors counters
  powerpc/mpc5200: Remove obsolete code from mpc5200 MDIO driver
  powerpc/mpc5200: Add MDMA/UDMA support to MPC5200 ATA driver
  ...

Fix trivial conflict in drivers/char/Makefile as per Paul's directions

arch/powerpc/Kconfig

@@ -285,6 +285,10 @@ config IOMMU_VMERGE
 config IOMMU_HELPER
 	def_bool PPC64
 
+config PPC_NEED_DMA_SYNC_OPS
+	def_bool y
+	depends on NOT_COHERENT_CACHE
+
 config HOTPLUG_CPU
 	bool "Support for enabling/disabling CPUs"
 	depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
@@ -322,7 +326,7 @@ config KEXEC
 
 config CRASH_DUMP
 	bool "Build a kdump crash kernel"
-	depends on PPC_MULTIPLATFORM && PPC64 && RELOCATABLE
+	depends on (PPC64 && RELOCATABLE) || 6xx
 	help
 	  Build a kernel suitable for use as a kdump capture kernel.
 	  The same kernel binary can be used as production kernel and dump
@@ -401,23 +405,53 @@ config PPC_HAS_HASH_64K
 	depends on PPC64
 	default n
 
-config PPC_64K_PAGES
-	bool "64k page size"
-	depends on PPC64
-	select PPC_HAS_HASH_64K
+choice
+	prompt "Page size"
+	default PPC_4K_PAGES
 	help
-	  This option changes the kernel logical page size to 64k. On machines
-	  without processor support for 64k pages, the kernel will simulate
-	  them by loading each individual 4k page on demand transparently,
-	  while on hardware with such support, it will be used to map
-	  normal application pages.
+	  Select the kernel logical page size. Increasing the page size
+	  will reduce software overhead at each page boundary, allow
+	  hardware prefetch mechanisms to be more effective, and allow
+	  larger dma transfers increasing IO efficiency and reducing
+	  overhead. However the utilization of memory will increase.
+	  For example, each cached file will using a multiple of the
+	  page size to hold its contents and the difference between the
+	  end of file and the end of page is wasted.
+
+	  Some dedicated systems, such as software raid serving with
+	  accelerated calculations, have shown significant increases.
+
+	  If you configure a 64 bit kernel for 64k pages but the
+	  processor does not support them, then the kernel will simulate
+	  them with 4k pages, loading them on demand, but with the
+	  reduced software overhead and larger internal fragmentation.
+	  For the 32 bit kernel, a large page option will not be offered
+	  unless it is supported by the configured processor.
+
+	  If unsure, choose 4K_PAGES.
+
+config PPC_4K_PAGES
+	bool "4k page size"
+
+config PPC_16K_PAGES
+	bool "16k page size" if 44x
+
+config PPC_64K_PAGES
+	bool "64k page size" if 44x || PPC_STD_MMU_64
+	select PPC_HAS_HASH_64K if PPC_STD_MMU_64
+
+endchoice
 
 config FORCE_MAX_ZONEORDER
 	int "Maximum zone order"
-	range 9 64 if PPC_64K_PAGES
-	default "9" if PPC_64K_PAGES
-	range 13 64 if PPC64 && !PPC_64K_PAGES
-	default "13" if PPC64 && !PPC_64K_PAGES
+	range 9 64 if PPC_STD_MMU_64 && PPC_64K_PAGES
+	default "9" if PPC_STD_MMU_64 && PPC_64K_PAGES
+	range 13 64 if PPC_STD_MMU_64 && !PPC_64K_PAGES
+	default "13" if PPC_STD_MMU_64 && !PPC_64K_PAGES
+	range 9 64 if PPC_STD_MMU_32 && PPC_16K_PAGES
+	default "9" if PPC_STD_MMU_32 && PPC_16K_PAGES
+	range 7 64 if PPC_STD_MMU_32 && PPC_64K_PAGES
+	default "7" if PPC_STD_MMU_32 && PPC_64K_PAGES
 	range 11 64
 	default "11"
 	help
@@ -437,7 +471,7 @@ config FORCE_MAX_ZONEORDER
 
 config PPC_SUBPAGE_PROT
 	bool "Support setting protections for 4k subpages"
-	depends on PPC_64K_PAGES
+	depends on PPC_STD_MMU_64 && PPC_64K_PAGES
 	help
 	  This option adds support for a system call to allow user programs
 	  to set access permissions (read/write, readonly, or no access)

arch/powerpc/Kconfig.debug

@@ -2,6 +2,15 @@ menu "Kernel hacking"
 
 source "lib/Kconfig.debug"
 
+config PRINT_STACK_DEPTH
+	int "Stack depth to print" if DEBUG_KERNEL
+	default 64
+	help
+	  This option allows you to set the stack depth that the kernel
+	  prints in stack traces. This can be useful if your display is
+	  too small and stack traces cause important information to
+	  scroll off the screen.
+
 config DEBUG_STACKOVERFLOW
 	bool "Check for stack overflows"
 	depends on DEBUG_KERNEL

arch/powerpc/Makefile

@@ -107,7 +107,6 @@ KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
 # (We use all available options to help semi-broken compilers)
 KBUILD_CFLAGS += $(call cc-option,-mno-spe)
 KBUILD_CFLAGS += $(call cc-option,-mspe=no)
-KBUILD_CFLAGS += $(call cc-option,-mabi=no-spe)
 
 # Enable unit-at-a-time mode when possible. It shrinks the
 # kernel considerably.

arch/powerpc/boot/Makefile

@@ -194,6 +194,7 @@ image-$(CONFIG_PPC_MAPLE)		+= zImage.pseries
 image-$(CONFIG_PPC_IBM_CELL_BLADE)	+= zImage.pseries
 image-$(CONFIG_PPC_PS3)			+= dtbImage.ps3
 image-$(CONFIG_PPC_CELLEB)		+= zImage.pseries
+image-$(CONFIG_PPC_CELL_QPACE)		+= zImage.pseries
 image-$(CONFIG_PPC_CHRP)		+= zImage.chrp
 image-$(CONFIG_PPC_EFIKA)		+= zImage.chrp
 image-$(CONFIG_PPC_PMAC)		+= zImage.pmac

arch/powerpc/boot/devtree.c

@@ -213,7 +213,7 @@ static int find_range(u32 *reg, u32 *ranges, int nregaddr,
 		u32 range_addr[MAX_ADDR_CELLS];
 		u32 range_size[MAX_ADDR_CELLS];
 
-		copy_val(range_addr, ranges + i, naddr);
+		copy_val(range_addr, ranges + i, nregaddr);
 		copy_val(range_size, ranges + i + nregaddr + naddr, nsize);
 
 		if (compare_reg(reg, range_addr, range_size))

arch/powerpc/boot/dts/bamboo.dts

@@ -269,7 +269,8 @@
 			 * later cannot be changed. Chip supports a second
 			 * IO range but we don't use it for now
 			 */
-			ranges = <0x02000000 0x00000000 0xa0000000 0x00000000 0xa0000000 0x00000000 0x20000000
+			ranges = <0x02000000 0x00000000 0xa0000000 0x00000000 0xa0000000 0x00000000 0x40000000
+				  0x02000000 0x00000000 0x00000000 0x00000000 0xe0000000 0x00000000 0x00100000
 				  0x01000000 0x00000000 0x00000000 0x00000000 0xe8000000 0x00000000 0x00010000>;
 
 			/* Inbound 2GB range starting at 0 */

arch/powerpc/boot/dts/canyonlands.dts

@@ -40,6 +40,7 @@
 			d-cache-size = <32768>;
 			dcr-controller;
 			dcr-access-method = "native";
+			next-level-cache = <&L2C0>;
 		};
 	};
 
@@ -104,6 +105,16 @@
 		dcr-reg = <0x00c 0x002>;
 	};
 
+	L2C0: l2c {
+		compatible = "ibm,l2-cache-460ex", "ibm,l2-cache";
+		dcr-reg = <0x020 0x008		/* Internal SRAM DCR's */
+			   0x030 0x008>;	/* L2 cache DCR's */
+		cache-line-size = <32>;		/* 32 bytes */
+		cache-size = <262144>;		/* L2, 256K */
+		interrupt-parent = <&UIC1>;
+		interrupts = <11 1>;
+	};
+
 	plb {
 		compatible = "ibm,plb-460ex", "ibm,plb4";
 		#address-cells = <2>;
@@ -343,6 +354,7 @@
 			 * later cannot be changed
 			 */
 			ranges = <0x02000000 0x00000000 0x80000000 0x0000000d 0x80000000 0x00000000 0x80000000
+				  0x02000000 0x00000000 0x00000000 0x0000000c 0x0ee00000 0x00000000 0x00100000
 				  0x01000000 0x00000000 0x00000000 0x0000000c 0x08000000 0x00000000 0x00010000>;
 
 			/* Inbound 2GB range starting at 0 */
@@ -373,6 +385,7 @@
 			 * later cannot be changed
 			 */
 			ranges = <0x02000000 0x00000000 0x80000000 0x0000000e 0x00000000 0x00000000 0x80000000
+				  0x02000000 0x00000000 0x00000000 0x0000000f 0x00000000 0x00000000 0x00100000
 				  0x01000000 0x00000000 0x00000000 0x0000000f 0x80000000 0x00000000 0x00010000>;
 
 			/* Inbound 2GB range starting at 0 */
@@ -414,6 +427,7 @@
 			 * later cannot be changed
 			 */
 			ranges = <0x02000000 0x00000000 0x80000000 0x0000000e 0x80000000 0x00000000 0x80000000
+				  0x02000000 0x00000000 0x00000000 0x0000000f 0x00100000 0x00000000 0x00100000
 				  0x01000000 0x00000000 0x00000000 0x0000000f 0x80010000 0x00000000 0x00010000>;
 
 			/* Inbound 2GB range starting at 0 */

arch/powerpc/boot/dts/gef_sbc610.dts

@@ -98,6 +98,12 @@
 			interrupt-parent = <&mpic>;
 
 		};
+		gef_gpio: gpio@7,14000 {
+			#gpio-cells = <2>;
+			compatible = "gef,sbc610-gpio";
+			reg = <0x7 0x14000 0x24>;
+			gpio-controller;
+		};
 	};
 
 	soc@fef00000 {
@@ -119,6 +125,11 @@
 			interrupt-parent = <&mpic>;
 			dfsrr;
 
+			rtc@51 {
+				compatible = "epson,rx8581";
+				reg = <0x00000051>;
+			};
+
 			eti@6b {
 				compatible = "dallas,ds1682";
 				reg = <0x6b>;

arch/powerpc/boot/dts/kuroboxHD.dts

@@ -76,7 +76,6 @@ XXXX add flash parts, rtc, ??
 			interrupt-parent = <&mpic>;
 
 			rtc@32 {
-				device_type = "rtc";
 				compatible = "ricoh,rs5c372a";
 				reg = <0x32>;
 			};

arch/powerpc/boot/dts/kuroboxHG.dts

@@ -76,7 +76,6 @@ XXXX add flash parts, rtc, ??
 			interrupt-parent = <&mpic>;
 
 			rtc@32 {
-				device_type = "rtc";
 				compatible = "ricoh,rs5c372a";
 				reg = <0x32>;
 			};

arch/powerpc/boot/dts/lite5200.dts

@@ -130,7 +130,6 @@
 
 		rtc@800 {	// Real time clock
 			compatible = "fsl,mpc5200-rtc";
-			device_type = "rtc";
 			reg = <0x800 0x100>;
 			interrupts = <1 5 0 1 6 0>;
 			interrupt-parent = <&mpc5200_pic>;

arch/powerpc/boot/dts/lite5200b.dts

@@ -130,7 +130,6 @@
 
 		rtc@800 {	// Real time clock
 			compatible = "fsl,mpc5200b-rtc","fsl,mpc5200-rtc";
-			device_type = "rtc";
 			reg = <0x800 0x100>;
 			interrupts = <1 5 0 1 6 0>;
 			interrupt-parent = <&mpc5200_pic>;

arch/powerpc/boot/dts/motionpro.dts

@@ -248,7 +248,6 @@
 			fsl5200-clocking;
 
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 			};

arch/powerpc/boot/dts/mpc8315erdb.dts

@@ -117,7 +117,6 @@
 			interrupt-parent = <&ipic>;
 			dfsrr;
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 			};

arch/powerpc/boot/dts/mpc8349emitx.dts

@@ -85,7 +85,6 @@
 			dfsrr;
 
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 				interrupts = <18 0x8>;

arch/powerpc/boot/dts/mpc8349emitxgp.dts

@@ -83,7 +83,6 @@
 			dfsrr;
 
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 				interrupts = <18 0x8>;

arch/powerpc/boot/dts/mpc8377_rdb.dts

@@ -117,7 +117,6 @@
 			interrupt-parent = <&ipic>;
 			dfsrr;
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 			};

arch/powerpc/boot/dts/mpc8378_rdb.dts

@@ -117,7 +117,6 @@
 			interrupt-parent = <&ipic>;
 			dfsrr;
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 			};

arch/powerpc/boot/dts/mpc8379_rdb.dts

@@ -117,7 +117,6 @@
 			interrupt-parent = <&ipic>;
 			dfsrr;
 			rtc@68 {
-				device_type = "rtc";
 				compatible = "dallas,ds1339";
 				reg = <0x68>;
 			};