Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/mm: Lockless get_user_pages_fast() for 64-bit (v3)
  powerpc: Don't use the wrong thread_struct for ptrace get/set VSX regs
  powerpc: Fix ptrace buffer size for VSX
  powerpc: Correctly hookup PTRACE_GET/SETVSRREGS for 32 bit processes
  ide/powermac: Fix use of uninitialized pointer on media-bay
  powerpc: Allow non-hcall return values for lparcfg writes
  ipmi/powerpc: Use linux/of_{device,platform}.h instead of asm
  powerpc/fsl: proliferate simple-bus compatibility to soc nodes
  Documentation: remove old sbc8260 board specific information
  cpm2: Rework baud rate generators configuration to support external clocks.
  powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC
  cpm_uart: Add generic clock API support to set baudrates
  cpm_uart: Modem control lines support
  powerpc: implement GPIO LIB API on CPM1 Freescale SoC.
  cpm2: Implement GPIO LIB API on CPM2 Freescale SoC.
  powerpc: Fix 8xx build failure
  powerpc: clean up the Book-E HW watchpoint support

4 files changed, 61 insertions, 13 deletions

diff --git a/include/asm-powerpc/cpm.h b/include/asm-powerpc/cpm.h
index 63a55337c2de..24d79e3abd8e 100644
--- a/include/asm-powerpc/cpm.h
+++ b/include/asm-powerpc/cpm.h
@@ -3,6 +3,7 @@
 
 #include <linux/compiler.h>
 #include <linux/types.h>
+#include <linux/of.h>
 
 /* Opcodes common to CPM1 and CPM2
 */
@@ -100,4 +101,6 @@ unsigned long cpm_muram_offset(void __iomem *addr);
 dma_addr_t cpm_muram_dma(void __iomem *addr);
 int cpm_command(u32 command, u8 opcode);
 
+int cpm2_gpiochip_add32(struct device_node *np);
+
 #endif
diff --git a/include/asm-powerpc/cpm2.h b/include/asm-powerpc/cpm2.h
index 2c7fd9cee291..2a6fa0183ac9 100644
--- a/include/asm-powerpc/cpm2.h
+++ b/include/asm-powerpc/cpm2.h
@@ -12,6 +12,7 @@
 
 #include <asm/immap_cpm2.h>
 #include <asm/cpm.h>
+#include <sysdev/fsl_soc.h>
 
 #ifdef CONFIG_PPC_85xx
 #define CPM_MAP_ADDR (get_immrbase() + 0x80000)
@@ -93,10 +94,40 @@ extern cpm_cpm2_t __iomem *cpmp; /* Pointer to comm processor */
 #define cpm_dpfree cpm_muram_free
 #define cpm_dpram_addr cpm_muram_addr
 
-extern void cpm_setbrg(uint brg, uint rate);
-extern void cpm2_fastbrg(uint brg, uint rate, int div16);
 extern void cpm2_reset(void);
 
+/* Baud rate generators.
+*/
+#define CPM_BRG_RST             ((uint)0x00020000)
+#define CPM_BRG_EN              ((uint)0x00010000)
+#define CPM_BRG_EXTC_INT        ((uint)0x00000000)
+#define CPM_BRG_EXTC_CLK3_9     ((uint)0x00004000)
+#define CPM_BRG_EXTC_CLK5_15    ((uint)0x00008000)
+#define CPM_BRG_ATB             ((uint)0x00002000)
+#define CPM_BRG_CD_MASK         ((uint)0x00001ffe)
+#define CPM_BRG_DIV16           ((uint)0x00000001)
+
+#define CPM2_BRG_INT_CLK        (get_brgfreq())
+#define CPM2_BRG_UART_CLK       (CPM2_BRG_INT_CLK/16)
+
+extern void __cpm2_setbrg(uint brg, uint rate, uint clk, int div16, int src);
+
+/* This function is used by UARTS, or anything else that uses a 16x
+ * oversampled clock.
+ */
+static inline void cpm_setbrg(uint brg, uint rate)
+{
+        __cpm2_setbrg(brg, rate, CPM2_BRG_UART_CLK, 0, CPM_BRG_EXTC_INT);
+}
+
+/* This function is used to set high speed synchronous baud rate
+ * clocks.
+ */
+static inline void cpm2_fastbrg(uint brg, uint rate, int div16)
+{
+        __cpm2_setbrg(brg, rate, CPM2_BRG_INT_CLK, div16, CPM_BRG_EXTC_INT);
+}
+
 /* Function code bits, usually generic to devices.
 */
 #define CPMFCR_GBL      ((u_char)0x20)  /* Set memory snooping */
@@ -195,17 +226,6 @@ typedef struct smc_uart {
 #define SMCM_TX         ((unsigned char)0x02)
 #define SMCM_RX         ((unsigned char)0x01)
 
-/* Baud rate generators.
-*/
-#define CPM_BRG_RST             ((uint)0x00020000)
-#define CPM_BRG_EN              ((uint)0x00010000)
-#define CPM_BRG_EXTC_INT        ((uint)0x00000000)
-#define CPM_BRG_EXTC_CLK3_9     ((uint)0x00004000)
-#define CPM_BRG_EXTC_CLK5_15    ((uint)0x00008000)
-#define CPM_BRG_ATB             ((uint)0x00002000)
-#define CPM_BRG_CD_MASK         ((uint)0x00001ffe)
-#define CPM_BRG_DIV16           ((uint)0x00000001)
-
 /* SCCs.
 */
 #define SCC_GSMRH_IRP           ((uint)0x00040000)
diff --git a/include/asm-powerpc/pgtable-ppc64.h b/include/asm-powerpc/pgtable-ppc64.h
index 5fc78c0be302..74c6f380b805 100644
--- a/include/asm-powerpc/pgtable-ppc64.h
+++ b/include/asm-powerpc/pgtable-ppc64.h
@@ -461,6 +461,8 @@ void pgtable_cache_init(void);
         return pt;
 }
 
+pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long address);
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_POWERPC_PGTABLE_PPC64_H_ */
diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index a39b38ccdc97..69ed3cb1197a 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -143,6 +143,29 @@ static inline int page_cache_get_speculative(struct page *page)
         return 1;
 }
 
+/*
+ * Same as above, but add instead of inc (could just be merged)
+ */
+static inline int page_cache_add_speculative(struct page *page, int count)
+{
+        VM_BUG_ON(in_interrupt());
+
+#if !defined(CONFIG_SMP) && defined(CONFIG_CLASSIC_RCU)
+# ifdef CONFIG_PREEMPT
+        VM_BUG_ON(!in_atomic());
+# endif
+        VM_BUG_ON(page_count(page) == 0);
+        atomic_add(count, &page->_count);
+
+#else
+        if (unlikely(!atomic_add_unless(&page->_count, count, 0)))
+                return 0;
+#endif
+        VM_BUG_ON(PageCompound(page) && page != compound_head(page));
+
+        return 1;
+}
+
 static inline int page_freeze_refs(struct page *page, int count)
 {
         return likely(atomic_cmpxchg(&page->_count, count, 0) == count);