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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-30 10:43:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-30 10:43:56 -0700
commit660fc1f4d88b0f5e4bb936e4a5a9b95b70df9e58 (patch)
treea5b5de254f9b4378d77171e2a5d6496ec8e3e3f5 /include
parent3dd730f2b49f101b90d283c3efc4e6cd826dd8f6 (diff)
parentce0ad7f0952581ba75ab6aee55bb1ed9bb22cf4f (diff)
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
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/cpm.h3
-rw-r--r--include/asm-powerpc/cpm2.h46
-rw-r--r--include/asm-powerpc/pgtable-ppc64.h2
-rw-r--r--include/linux/pagemap.h23
4 files changed, 61 insertions, 13 deletions
diff --git a/include/asm-powerpc/cpm.h b/include/asm-powerpc/cpm.h
index 63a55337c2d..24d79e3abd8 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 2c7fd9cee29..2a6fa0183ac 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 5fc78c0be30..74c6f380b80 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 a39b38ccdc9..69ed3cb1197 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);