diff options
Diffstat (limited to 'arch')
44 files changed, 127 insertions, 104 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 7a21d0bf7134..7f27fab9d404 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -205,6 +205,13 @@ extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *, int dma_mmap_writecombine(struct device *, struct vm_area_struct *, void *, dma_addr_t, size_t); +/* + * This can be called during boot to increase the size of the consistent + * DMA region above it's default value of 2MB. It must be called before the + * memory allocator is initialised, i.e. before any core_initcall. + */ +extern void __init init_consistent_dma_size(unsigned long size); + #ifdef CONFIG_DMABOUNCE /* diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index b8de516e600e..652fccca4952 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -77,16 +77,7 @@ */ #define IOREMAP_MAX_ORDER 24 -/* - * Size of DMA-consistent memory region. Must be multiple of 2M, - * between 2MB and 14MB inclusive. - */ -#ifndef CONSISTENT_DMA_SIZE -#define CONSISTENT_DMA_SIZE SZ_2M -#endif - #define CONSISTENT_END (0xffe00000UL) -#define CONSISTENT_BASE (CONSISTENT_END - CONSISTENT_DMA_SIZE) #else /* CONFIG_MMU */ diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c index e04c5fb6f1ee..1532b508c814 100644 --- a/arch/arm/mach-at91/at91sam9g45.c +++ b/arch/arm/mach-at91/at91sam9g45.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/pm.h> +#include <linux/dma-mapping.h> #include <asm/irq.h> #include <asm/mach/arch.h> @@ -319,6 +320,7 @@ static void at91sam9g45_poweroff(void) static void __init at91sam9g45_map_io(void) { at91_init_sram(0, AT91SAM9G45_SRAM_BASE, AT91SAM9G45_SRAM_SIZE); + init_consistent_dma_size(SZ_4M); } static void __init at91sam9g45_initialize(void) diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h index 2c611b9a0138..406bb6496805 100644 --- a/arch/arm/mach-at91/include/mach/at91sam9g45.h +++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h @@ -128,8 +128,6 @@ #define AT91SAM9G45_EHCI_BASE 0x00800000 /* USB Host controller (EHCI) */ #define AT91SAM9G45_VDEC_BASE 0x00900000 /* Video Decoder Controller */ -#define CONSISTENT_DMA_SIZE SZ_4M - /* * DMA peripheral identifiers * for hardware handshaking interface diff --git a/arch/arm/mach-bcmring/include/mach/memory.h b/arch/arm/mach-bcmring/include/mach/memory.h index 15162e4c75f9..8848a5bb3445 100644 --- a/arch/arm/mach-bcmring/include/mach/memory.h +++ b/arch/arm/mach-bcmring/include/mach/memory.h @@ -25,9 +25,4 @@ #define PLAT_PHYS_OFFSET CFG_GLOBAL_RAM_BASE -/* - * Maximum DMA memory allowed is 14M - */ -#define CONSISTENT_DMA_SIZE (SZ_16M - SZ_2M) - #endif diff --git a/arch/arm/mach-bcmring/mm.c b/arch/arm/mach-bcmring/mm.c index 0f1c37e4523a..8616876abb9f 100644 --- a/arch/arm/mach-bcmring/mm.c +++ b/arch/arm/mach-bcmring/mm.c @@ -13,6 +13,7 @@ *****************************************************************************/ #include <linux/platform_device.h> +#include <linux/dma-mapping.h> #include <asm/mach/map.h> #include <mach/hardware.h> @@ -53,4 +54,6 @@ void __init bcmring_map_io(void) { iotable_init(bcmring_io_desc, ARRAY_SIZE(bcmring_io_desc)); + /* Maximum DMA memory allowed is 14M */ + init_consistent_dma_size(14 << 20); } diff --git a/arch/arm/mach-davinci/common.c b/arch/arm/mach-davinci/common.c index 1d2557394235..865ffe5899ac 100644 --- a/arch/arm/mach-davinci/common.c +++ b/arch/arm/mach-davinci/common.c @@ -12,6 +12,7 @@ #include <linux/io.h> #include <linux/etherdevice.h> #include <linux/davinci_emac.h> +#include <linux/dma-mapping.h> #include <asm/tlb.h> #include <asm/mach/map.h> @@ -86,6 +87,8 @@ void __init davinci_common_init(struct davinci_soc_info *soc_info) iotable_init(davinci_soc_info.io_desc, davinci_soc_info.io_desc_num); + init_consistent_dma_size(14 << 20); + /* * Normally devicemaps_init() would flush caches and tlb after * mdesc->map_io(), but we must also do it here because of the CPU diff --git a/arch/arm/mach-davinci/include/mach/memory.h b/arch/arm/mach-davinci/include/mach/memory.h index 78731944a70c..885d23319668 100644 --- a/arch/arm/mach-davinci/include/mach/memory.h +++ b/arch/arm/mach-davinci/include/mach/memory.h @@ -36,9 +36,4 @@ #define DDR2_MCLKSTOPEN_BIT BIT(30) #define DDR2_LPMODEN_BIT BIT(31) -/* - * Increase size of DMA-consistent memory region - */ -#define CONSISTENT_DMA_SIZE (14<<20) - #endif /* __ASM_ARCH_MEMORY_H */ diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c index 870886a29594..1cfa1b6bb62b 100644 --- a/arch/arm/mach-omap1/io.c +++ b/arch/arm/mach-omap1/io.c @@ -121,6 +121,7 @@ void __init omap1_map_common_io(void) #endif omap_sram_init(); + omap_init_consistent_dma_size(); } /* diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 2ce1ce6fb4db..d6d01cb7f28a 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -16,7 +16,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ - #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> @@ -250,6 +249,7 @@ static void __init _omap2_map_common_io(void) omap2_check_revision(); omap_sram_init(); + omap_init_consistent_dma_size(); } #ifdef CONFIG_SOC_OMAP2420 diff --git a/arch/arm/mach-s3c64xx/cpu.c b/arch/arm/mach-s3c64xx/cpu.c index 374e45e566b8..8dc05763a7eb 100644 --- a/arch/arm/mach-s3c64xx/cpu.c +++ b/arch/arm/mach-s3c64xx/cpu.c @@ -20,6 +20,7 @@ #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/io.h> +#include <linux/dma-mapping.h> #include <mach/hardware.h> #include <mach/map.h> @@ -145,6 +146,7 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size) /* initialise the io descriptors we need for initialisation */ iotable_init(s3c_iodesc, ARRAY_SIZE(s3c_iodesc)); iotable_init(mach_desc, size); + init_consistent_dma_size(SZ_8M); idcode = __raw_readl(S3C_VA_SYS + 0x118); if (!idcode) { diff --git a/arch/arm/mach-s3c64xx/include/mach/memory.h b/arch/arm/mach-s3c64xx/include/mach/memory.h index 4760cdae1eb6..b704669f95ff 100644 --- a/arch/arm/mach-s3c64xx/include/mach/memory.h +++ b/arch/arm/mach-s3c64xx/include/mach/memory.h @@ -15,6 +15,4 @@ #define PLAT_PHYS_OFFSET UL(0x50000000) -#define CONSISTENT_DMA_SIZE SZ_8M - #endif diff --git a/arch/arm/mach-s5p64x0/cpu.c b/arch/arm/mach-s5p64x0/cpu.c index a5c00952ea35..8a938542c54d 100644 --- a/arch/arm/mach-s5p64x0/cpu.c +++ b/arch/arm/mach-s5p64x0/cpu.c @@ -20,6 +20,7 @@ #include <linux/serial_core.h> #include <linux/platform_device.h> #include <linux/sched.h> +#include <linux/dma-mapping.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -111,6 +112,7 @@ void __init s5p6440_map_io(void) iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc)); iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc)); + init_consistent_dma_size(SZ_8M); } void __init s5p6450_map_io(void) @@ -120,6 +122,7 @@ void __init s5p6450_map_io(void) iotable_init(s5p64x0_iodesc, ARRAY_SIZE(s5p64x0_iodesc)); iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc)); + init_consistent_dma_size(SZ_8M); } /* diff --git a/arch/arm/mach-s5p64x0/include/mach/memory.h b/arch/arm/mach-s5p64x0/include/mach/memory.h index 365a6eb4b88f..b14cbc3f521b 100644 --- a/arch/arm/mach-s5p64x0/include/mach/memory.h +++ b/arch/arm/mach-s5p64x0/include/mach/memory.h @@ -14,6 +14,5 @@ #define __ASM_ARCH_MEMORY_H __FILE__ #define PLAT_PHYS_OFFSET UL(0x20000000) -#define CONSISTENT_DMA_SIZE SZ_8M #endif /* __ASM_ARCH_MEMORY_H */ diff --git a/arch/arm/mach-s5pv210/cpu.c b/arch/arm/mach-s5pv210/cpu.c index 79907ec78d43..91145720822c 100644 --- a/arch/arm/mach-s5pv210/cpu.c +++ b/arch/arm/mach-s5pv210/cpu.c @@ -20,6 +20,7 @@ #include <linux/sysdev.h> #include <linux/platform_device.h> #include <linux/sched.h> +#include <linux/dma-mapping.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> @@ -119,6 +120,7 @@ static void s5pv210_sw_reset(void) void __init s5pv210_map_io(void) { iotable_init(s5pv210_iodesc, ARRAY_SIZE(s5pv210_iodesc)); + init_consistent_dma_size(14 << 20); /* initialise device information early */ s5pv210_default_sdhci0(); diff --git a/arch/arm/mach-s5pv210/include/mach/memory.h b/arch/arm/mach-s5pv210/include/mach/memory.h index 7b5fcf0da0c4..2d3cfa221d5f 100644 --- a/arch/arm/mach-s5pv210/include/mach/memory.h +++ b/arch/arm/mach-s5pv210/include/mach/memory.h @@ -14,7 +14,6 @@ #define __ASM_ARCH_MEMORY_H #define PLAT_PHYS_OFFSET UL(0x20000000) -#define CONSISTENT_DMA_SIZE (SZ_8M + SZ_4M + SZ_2M) /* * Sparsemem support diff --git a/arch/arm/mach-shmobile/board-ag5evm.c b/arch/arm/mach-shmobile/board-ag5evm.c index ce5c2513c6ce..167a67c5ca54 100644 --- a/arch/arm/mach-shmobile/board-ag5evm.c +++ b/arch/arm/mach-shmobile/board-ag5evm.c @@ -37,6 +37,7 @@ #include <linux/mmc/sh_mobile_sdhi.h> #include <linux/mfd/tmio.h> #include <linux/sh_clk.h> +#include <linux/dma-mapping.h> #include <video/sh_mobile_lcdc.h> #include <video/sh_mipi_dsi.h> #include <sound/sh_fsi.h> @@ -446,6 +447,8 @@ static struct map_desc ag5evm_io_desc[] __initdata = { static void __init ag5evm_map_io(void) { iotable_init(ag5evm_io_desc, ARRAY_SIZE(ag5evm_io_desc)); + /* DMA memory at 0xf6000000 - 0xffdfffff */ + init_consistent_dma_size(158 << 20); /* setup early devices and console here as well */ sh73a0_add_early_devices(); diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c index 9e0856b2f9e9..ec8f9d960e27 100644 --- a/arch/arm/mach-shmobile/board-ap4evb.c +++ b/arch/arm/mach-shmobile/board-ap4evb.c @@ -42,6 +42,7 @@ #include <linux/leds.h> #include <linux/input/sh_keysc.h> #include <linux/usb/r8a66597.h> +#include <linux/dma-mapping.h> #include <media/sh_mobile_ceu.h> #include <media/sh_mobile_csi2.h> @@ -1170,6 +1171,8 @@ static struct map_desc ap4evb_io_desc[] __initdata = { static void __init ap4evb_map_io(void) { iotable_init(ap4evb_io_desc, ARRAY_SIZE(ap4evb_io_desc)); + /* DMA memory at 0xf6000000 - 0xffdfffff */ + init_consistent_dma_size(158 << 20); /* setup early devices and console here as well */ sh7372_add_early_devices(); diff --git a/arch/arm/mach-shmobile/board-g3evm.c b/arch/arm/mach-shmobile/board-g3evm.c index ef4613b993a2..8b620bf06221 100644 --- a/arch/arm/mach-shmobile/board-g3evm.c +++ b/arch/arm/mach-shmobile/board-g3evm.c @@ -32,6 +32,7 @@ #include <linux/gpio.h> #include <linux/input.h> #include <linux/input/sh_keysc.h> +#include <linux/dma-mapping.h> #include <mach/sh7367.h> #include <mach/common.h> #include <asm/mach-types.h> @@ -260,6 +261,8 @@ static struct map_desc g3evm_io_desc[] __initdata = { static void __init g3evm_map_io(void) { iotable_init(g3evm_io_desc, ARRAY_SIZE(g3evm_io_desc)); + /* DMA memory at 0xf6000000 - 0xffdfffff */ + init_consistent_dma_size(158 << 20); /* setup early devices and console here as well */ sh7367_add_early_devices(); diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c index 8e3c5559f27f..7719ddc5f591 100644 --- a/arch/arm/mach-shmobile/board-g4evm.c +++ b/arch/arm/mach-shmobile/board-g4evm.c @@ -33,6 +33,7 @@ #include <linux/mmc/host.h> #include <linux/mmc/sh_mobile_sdhi.h> #include <linux/gpio.h> +#include <linux/dma-mapping.h> #include <mach/sh7377.h> #include <mach/common.h> #include <asm/mach-types.h> @@ -274,6 +275,8 @@ static struct map_desc g4evm_io_desc[] __initdata = { static void __init g4evm_map_io(void) { iotable_init(g4evm_io_desc, ARRAY_SIZE(g4evm_io_desc)); + /* DMA memory at 0xf6000000 - 0xffdfffff */ + init_consistent_dma_size(158 << 20); /* setup early devices and console here as well */ sh7377_add_early_devices(); diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index d41c01f83f15..671925dcf5f9 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -45,6 +45,7 @@ #include <linux/tca6416_keypad.h> #include <linux/usb/r8a66597.h> #include <linux/usb/renesas_usbhs.h> +#include <linux/dma-mapping.h> #include <video/sh_mobile_hdmi.h> #include <video/sh_mobile_lcdc.h> @@ -1377,6 +1378,8 @@ static struct map_desc mackerel_io_desc[] __initdata = { static void __init mackerel_map_io(void) { iotable_init(mackerel_io_desc, ARRAY_SIZE(mackerel_io_desc)); + /* DMA memory at 0xf6000000 - 0xffdfffff */ + init_consistent_dma_size(158 << 20); /* setup early devices and console here as well */ sh7372_add_early_devices(); diff --git a/arch/arm/mach-shmobile/include/mach/memory.h b/arch/arm/mach-shmobile/include/mach/memory.h index ad00c3c258f4..0ffbe8155c76 100644 --- a/arch/arm/mach-shmobile/include/mach/memory.h +++ b/arch/arm/mach-shmobile/include/mach/memory.h @@ -4,7 +4,4 @@ #define PLAT_PHYS_OFFSET UL(CONFIG_MEMORY_START) #define MEM_SIZE UL(CONFIG_MEMORY_SIZE) -/* DMA memory at 0xf6000000 - 0xffdfffff */ -#define CONSISTENT_DMA_SIZE (158 << 20) - #endif /* __ASM_MACH_MEMORY_H */ diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c index 399c89f14dfb..376b6dfdfae9 100644 --- a/arch/arm/mach-u300/core.c +++ b/arch/arm/mach-u300/core.c @@ -25,6 +25,7 @@ #include <linux/err.h> #include <linux/mtd/nand.h> #include <linux/mtd/fsmc.h> +#include <linux/dma-mapping.h> #include <asm/types.h> #include <asm/setup.h> @@ -92,6 +93,8 @@ static struct map_desc u300_io_desc[] __initdata = { void __init u300_map_io(void) { iotable_init(u300_io_desc, ARRAY_SIZE(u300_io_desc)); + /* We enable a real big DMA buffer if need be. */ + init_consistent_dma_size(SZ_4M); } /* diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h index f98acd91abd3..7034bae95de6 100644 --- a/arch/arm/mach-u300/include/mach/memory.h +++ b/arch/arm/mach-u300/include/mach/memory.h @@ -34,9 +34,4 @@ #endif #endif -/* - * We enable a real big DMA buffer if need be. - */ -#define CONSISTENT_DMA_SIZE SZ_4M - #endif diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index 0a0a1e7c20d2..50be842e89fd 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -18,12 +18,14 @@ #include <linux/device.h> #include <linux/dma-mapping.h> #include <linux/highmem.h> +#include <linux/slab.h> #include <asm/memory.h> #include <asm/highmem.h> #include <asm/cacheflush.h> #include <asm/tlbflush.h> #include <asm/sizes.h> +#include <asm/mach/arch.h> #include "mm.h" @@ -117,26 +119,37 @@ static void __dma_free_buffer(struct page *page, size_t size) } #ifdef CONFIG_MMU -/* Sanity check size */ -#if (CONSISTENT_DMA_SIZE % SZ_2M) -#error "CONSISTENT_DMA_SIZE must be multiple of 2MiB" -#endif -#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PAGE_SHIFT) -#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - CONSISTENT_BASE) >> PGDIR_SHIFT) -#define NUM_CONSISTENT_PTES (CONSISTENT_DMA_SIZE >> PGDIR_SHIFT) + +#define CONSISTENT_OFFSET(x) (((unsigned long)(x) - consistent_base) >> PAGE_SHIFT) +#define CONSISTENT_PTE_INDEX(x) (((unsigned long)(x) - consistent_base) >> PGDIR_SHIFT) /* * These are the page tables (2MB each) covering uncached, DMA consistent allocations */ -static pte_t *consistent_pte[NUM_CONSISTENT_PTES]; +static pte_t **consistent_pte; + +#define DEFAULT_CONSISTENT_DMA_SIZE SZ_2M + +unsigned long consistent_base = CONSISTENT_END - DEFAULT_CONSISTENT_DMA_SIZE; + +void __init init_consistent_dma_size(unsigned long size) +{ + unsigned long base = CONSISTENT_END - ALIGN(size, SZ_2M); + + BUG_ON(consistent_pte); /* Check we're called before DMA region init */ + BUG_ON(base < VMALLOC_END); + + /* Grow region to accommodate specified size */ + if (base < consistent_base) + consistent_base = base; +} #include "vmregion.h" static struct arm_vmregion_head consistent_head = { .vm_lock = __SPIN_LOCK_UNLOCKED(&consistent_head.vm_lock), .vm_list = LIST_HEAD_INIT(consistent_head.vm_list), - .vm_start = CONSISTENT_BASE, .vm_end = CONSISTENT_END, }; @@ -155,7 +168,17 @@ static int __init consistent_init(void) pmd_t *pmd; pte_t *pte; int i = 0; - u32 base = CONSISTENT_BASE; + unsigned long base = consistent_base; + unsigned long num_ptes = (CONSISTENT_END - base) >> PGDIR_SHIFT; + + consistent_pte = kmalloc(num_ptes * sizeof(pte_t), GFP_KERNEL); + if (!consistent_pte) { + pr_err("%s: no memory\n", __func__); + return -ENOMEM; + } + + pr_debug("DMA memory: 0x%08lx - 0x%08lx:\n", base, CONSISTENT_END); + consistent_head.vm_start = base; do { pgd = pgd_offset(&init_mm, base); @@ -198,7 +221,7 @@ __dma_alloc_remap(struct page *page, size_t size, gfp_t gfp, pgprot_t prot) size_t align; int bit; - if (!consistent_pte[0]) { + if (!consistent_pte) { printk(KERN_ERR "%s: not initialised\n", __func__); dump_stack(); return NULL; diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 91bca355cd31..64ab41348f30 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -653,9 +653,6 @@ void __init mem_init(void) " ITCM : 0x%08lx - 0x%08lx (%4ld kB)\n" #endif " fixmap : 0x%08lx - 0x%08lx (%4ld kB)\n" -#ifdef CONFIG_MMU - " DMA : 0x%08lx - 0x%08lx (%4ld MB)\n" -#endif " vmalloc : 0x%08lx - 0x%08lx (%4ld MB)\n" " lowmem : 0x%08lx - 0x%08lx (%4ld MB)\n" #ifdef CONFIG_HIGHMEM @@ -674,9 +671,6 @@ void __init mem_init(void) MLK(ITCM_OFFSET, (unsigned long) itcm_end), #endif MLK(FIXADDR_START, FIXADDR_TOP), -#ifdef CONFIG_MMU - MLM(CONSISTENT_BASE, CONSISTENT_END), -#endif MLM(VMALLOC_START, VMALLOC_END), MLM(PAGE_OFFSET, (unsigned long)high_memory), #ifdef CONFIG_HIGHMEM @@ -699,9 +693,6 @@ void __init mem_init(void) * be detected at build time already. */ #ifdef CONFIG_MMU - BUILD_BUG_ON(VMALLOC_END > CONSISTENT_BASE); - BUG_ON(VMALLOC_END > CONSISTENT_BASE); - BUILD_BUG_ON(TASK_SIZE > MODULES_VADDR); BUG_ON(TASK_SIZE > MODULES_VADDR); #endif diff --git a/arch/arm/plat-mxc/include/mach/memory.h b/arch/arm/plat-mxc/include/mach/memory.h index 11be5cdbdd1a..3ec84b902243 100644 --- a/arch/arm/plat-mxc/include/mach/memory.h +++ b/arch/arm/plat-mxc/include/mach/memory.h @@ -40,19 +40,4 @@ # endif #endif -#if defined(CONFIG_MX3_VIDEO) -/* - * Increase size of DMA-consistent memory region. - * This is required for mx3 camera driver to capture at least two QXGA frames. - */ -#define CONSISTENT_DMA_SIZE SZ_8M - -#elif defined(CONFIG_MX1_VIDEO) || defined(CONFIG_VIDEO_MX2_HOSTSUPPORT) -/* - * Increase size of DMA-consistent memory region. - * This is required for i.MX camera driver to capture at least four VGA frames. - */ -#define CONSISTENT_DMA_SIZE SZ_4M -#endif /* CONFIG_MX1_VIDEO || CONFIG_VIDEO_MX2_HOSTSUPPORT */ - #endif /* __ASM_ARCH_MXC_MEMORY_H__ */ diff --git a/arch/arm/plat-omap/include/plat/io.h b/arch/arm/plat-omap/include/plat/io.h index d72ec85c97e6..ebe67ea8d068 100644 --- a/arch/arm/plat-omap/include/plat/io.h +++ b/arch/arm/plat-omap/include/plat/io.h @@ -309,6 +309,8 @@ extern void omap2_init_common_devices(struct omap_sdrc_params *sdrc_cs0, void __iomem *omap_ioremap(unsigned long phys, size_t size, unsigned int type); void omap_iounmap(volatile void __iomem *addr); +extern void __init omap_init_consistent_dma_size(void); + #endif #endif diff --git a/arch/arm/plat-omap/include/plat/memory.h b/arch/arm/plat-omap/include/plat/memory.h index e6720aa2d553..7f9df6f1e113 100644 --- a/arch/arm/plat-omap/include/plat/memory.h +++ b/arch/arm/plat-omap/include/plat/memory.h @@ -85,18 +85,5 @@ #endif /* CONFIG_ARCH_OMAP15XX */ -/* Override the ARM default */ -#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE - -#if (CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE == 0) -#undef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE -#define CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE 2 -#endif - -#define CONSISTENT_DMA_SIZE \ - (((CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE + 1) & ~1) * 1024 * 1024) - -#endif - #endif diff --git a/arch/arm/plat-omap/io.c b/arch/arm/plat-omap/io.c index f1ecfa9fc61d..e9b0e23edd0a 100644 --- a/arch/arm/plat-omap/io.c +++ b/arch/arm/plat-omap/io.c @@ -12,6 +12,7 @@ #include <linux/module.h> #include <linux/io.h> #include <linux/mm.h> +#include <linux/dma-mapping.h> #include <plat/omap7xx.h> #include <plat/omap1510.h> @@ -139,3 +140,10 @@ void omap_iounmap(volatile void __iomem *addr) __iounmap(addr); } EXPORT_SYMBOL(omap_iounmap); + +void __init omap_init_consistent_dma_size(void) +{ +#ifdef CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE + init_consistent_dma_size(CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE << 20); +#endif +} diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 124854714958..3ff7785b3beb 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -162,7 +162,6 @@ config IA64_GENERIC select ACPI_NUMA select SWIOTLB select PCI_MSI - select DMAR help This selects the system type of your hardware. A "generic" kernel will run on any supported IA-64 system. However, if you configure diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig index 1d7bca0a396d..0e5cd1405e0e 100644 --- a/arch/ia64/configs/generic_defconfig +++ b/arch/ia64/configs/generic_defconfig @@ -234,3 +234,4 @@ CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_ANSI_CPRNG is not set CONFIG_CRC_T10DIF=y CONFIG_MISC_DEVICES=y +CONFIG_DMAR=y diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index 42c67beadcae..1a6f20d4e7e6 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -55,6 +55,7 @@ config SPARC64 select PERF_USE_VMALLOC select IRQ_PREFLOW_FASTEOI select ARCH_HAVE_NMI_SAFE_CMPXCHG + select HAVE_C_RECORDMCOUNT config ARCH_DEFCONFIG string diff --git a/arch/sparc/include/asm/spinlock_32.h b/arch/sparc/include/asm/spinlock_32.h index 5f5b8bf3f50d..bcc98fc35281 100644 --- a/arch/sparc/include/asm/spinlock_32.h +++ b/arch/sparc/include/asm/spinlock_32.h @@ -131,6 +131,15 @@ static inline void arch_write_lock(arch_rwlock_t *rw) *(volatile __u32 *)&lp->lock = ~0U; } +static void inline arch_write_unlock(arch_rwlock_t *lock) +{ + __asm__ __volatile__( +" st %%g0, [%0]" + : /* no outputs */ + : "r" (lock) + : "memory"); +} + static inline int arch_write_trylock(arch_rwlock_t *rw) { unsigned int val; @@ -175,8 +184,6 @@ static inline int __arch_read_trylock(arch_rwlock_t *rw) res; \ }) -#define arch_write_unlock(rw) do { (rw)->lock = 0; } while(0) - #define arch_spin_lock_flags(lock, flags) arch_spin_lock(lock) #define arch_read_lock_flags(rw, flags) arch_read_lock(rw) #define arch_write_lock_flags(rw, flags) arch_write_lock(rw) diff --git a/arch/sparc/include/asm/spinlock_64.h b/arch/sparc/include/asm/spinlock_64.h index 073936a8b275..968917694978 100644 --- a/arch/sparc/include/asm/spinlock_64.h +++ b/arch/sparc/include/asm/spinlock_64.h @@ -210,14 +210,8 @@ static int inline arch_write_trylock(arch_rwlock_t *lock) return result; } -#define arch_read_lock(p) arch_read_lock(p) #define arch_read_lock_flags(p, f) arch_read_lock(p) -#define arch_read_trylock(p) arch_read_trylock(p) -#define arch_read_unlock(p) arch_read_unlock(p) -#define arch_write_lock(p) arch_write_lock(p) #define arch_write_lock_flags(p, f) arch_write_lock(p) -#define arch_write_unlock(p) arch_write_unlock(p) -#define arch_write_trylock(p) arch_write_trylock(p) #define arch_read_can_lock(rw) (!((rw)->lock & 0x80000000UL)) #define arch_write_can_lock(rw) (!(rw)->lock) diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c index a19f04195478..1aaf8c180be5 100644 --- a/arch/sparc/kernel/pcic.c +++ b/arch/sparc/kernel/pcic.c @@ -352,8 +352,8 @@ int __init pcic_probe(void) strcpy(pbm->prom_name, namebuf); { - extern volatile int t_nmi[1]; - extern int pcic_nmi_trap_patch[1]; + extern volatile int t_nmi[4]; + extern int pcic_nmi_trap_patch[4]; t_nmi[0] = pcic_nmi_trap_patch[0]; t_nmi[1] = pcic_nmi_trap_patch[1]; diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h index 64a619d47d34..7ff4669580cf 100644 --- a/arch/x86/include/asm/xen/page.h +++ b/arch/x86/include/asm/xen/page.h @@ -39,7 +39,7 @@ typedef struct xpaddr { ((unsigned long)((u64)CONFIG_XEN_MAX_DOMAIN_MEMORY * 1024 * 1024 * 1024 / PAGE_SIZE)) extern unsigned long *machine_to_phys_mapping; -extern unsigned int machine_to_phys_order; +extern unsigned long machine_to_phys_nr; extern unsigned long get_phys_to_machine(unsigned long pfn); extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn); @@ -87,7 +87,7 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn) if (xen_feature(XENFEAT_auto_translated_physmap)) return mfn; - if (unlikely((mfn >> machine_to_phys_order) != 0)) { + if (unlikely(mfn >= machine_to_phys_nr)) { pfn = ~0; goto try_override; } diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 988724b236b6..ff5790d8e990 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -22,6 +22,8 @@ config KVM depends on HAVE_KVM # for device assignment: depends on PCI + # for TASKSTATS/TASK_DELAY_ACCT: + depends on NET select PREEMPT_NOTIFIERS select MMU_NOTIFIER select ANON_INODES @@ -31,6 +33,7 @@ config KVM select KVM_ASYNC_PF select USER_RETURN_NOTIFIER select KVM_MMIO + select TASKSTATS select TASK_DELAY_ACCT ---help--- Support hosting fully virtualized guest machines using hardware diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 247aae3dc008..0d17c8c50acd 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -17,6 +17,7 @@ #include <asm/traps.h> /* dotraplinkage, ... */ #include <asm/pgalloc.h> /* pgd_*(), ... */ #include <asm/kmemcheck.h> /* kmemcheck_*(), ... */ +#include <asm/vsyscall.h> /* * Page fault error code bits: diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c index ae3cb23cd89b..c95330267f08 100644 --- a/arch/x86/pci/acpi.c +++ b/arch/x86/pci/acpi.c @@ -360,6 +360,15 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root) } } + /* After the PCI-E bus has been walked and all devices discovered, + * configure any settings of the fabric that might be necessary. + */ + if (bus) { + struct pci_bus *child; + list_for_each_entry(child, &bus->children, node) + pcie_bus_configure_settings(child, child->self->pcie_mpss); + } + if (!bus) kfree(sd); diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile index 3326204e251f..add2c2d729ce 100644 --- a/arch/x86/xen/Makefile +++ b/arch/x86/xen/Makefile @@ -15,7 +15,7 @@ obj-y := enlighten.o setup.o multicalls.o mmu.o irq.o \ grant-table.o suspend.o platform-pci-unplug.o \ p2m.o -obj-$(CONFIG_FTRACE) += trace.o +obj-$(CONFIG_EVENT_TRACING) += trace.o obj-$(CONFIG_SMP) += smp.o obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= spinlock.o diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index e2345af01af0..2d69617950f7 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -77,8 +77,8 @@ EXPORT_SYMBOL_GPL(xen_domain_type); unsigned long *machine_to_phys_mapping = (void *)MACH2PHYS_VIRT_START; EXPORT_SYMBOL(machine_to_phys_mapping); -unsigned int machine_to_phys_order; -EXPORT_SYMBOL(machine_to_phys_order); +unsigned long machine_to_phys_nr; +EXPORT_SYMBOL(machine_to_phys_nr); struct start_info *xen_start_info; EXPORT_SYMBOL_GPL(xen_start_info); diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 8cce339db5e7..20a614275064 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -1713,15 +1713,19 @@ static void __init xen_map_identity_early(pmd_t *pmd, unsigned long max_pfn) void __init xen_setup_machphys_mapping(void) { struct xen_machphys_mapping mapping; - unsigned long machine_to_phys_nr_ents; if (HYPERVISOR_memory_op(XENMEM_machphys_mapping, &mapping) == 0) { machine_to_phys_mapping = (unsigned long *)mapping.v_start; - machine_to_phys_nr_ents = mapping.max_mfn + 1; + machine_to_phys_nr = mapping.max_mfn + 1; } else { - machine_to_phys_nr_ents = MACH2PHYS_NR_ENTRIES; + machine_to_phys_nr = MACH2PHYS_NR_ENTRIES; } - machine_to_phys_order = fls(machine_to_phys_nr_ents - 1); +#ifdef CONFIG_X86_32 + if ((machine_to_phys_mapping + machine_to_phys_nr) + < machine_to_phys_mapping) + machine_to_phys_nr = (unsigned long *)NULL + - machine_to_phys_mapping; +#endif } #ifdef CONFIG_X86_64 diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index b4533a86d7e4..e79dbb95482b 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -521,8 +521,6 @@ static void __init xen_hvm_smp_prepare_cpus(unsigned int max_cpus) native_smp_prepare_cpus(max_cpus); WARN_ON(xen_smp_intr_init(0)); - if (!xen_have_vector_callback) - return; xen_init_lock_cpu(0); xen_init_spinlocks(); } @@ -546,6 +544,8 @@ static void xen_hvm_cpu_die(unsigned int cpu) void __init xen_hvm_smp_init(void) { + if (!xen_have_vector_callback) + return; smp_ops.smp_prepare_cpus = xen_hvm_smp_prepare_cpus; smp_ops.smp_send_reschedule = xen_smp_send_reschedule; smp_ops.cpu_up = xen_hvm_cpu_up; |