diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-powerpc/cpm.h | 3 | ||||
| -rw-r--r-- | include/asm-powerpc/cpm2.h | 46 | ||||
| -rw-r--r-- | include/asm-powerpc/pgtable-ppc64.h | 2 | ||||
| -rw-r--r-- | include/linux/pagemap.h | 23 |
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); |