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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 01:18:05 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-11-06 01:18:05 (GMT) |
commit | 7abec10c623d9e0416dab6919a0ea22e6283516b (patch) | |
tree | 83aa79c369e99c4fc60eea91ebd399b7689b312e /arch/arm/plat-samsung/include/plat/sysmmu.h | |
parent | 0de9adf284ec20454ecf37ffd98e7e98ba7292d6 (diff) | |
parent | cfaf8fc5b59527281e9ddc2e0e04e1127936e17f (diff) | |
download | linux-fsl-qoriq-7abec10c623d9e0416dab6919a0ea22e6283516b.tar.xz |
Merge branch 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc
* 'next/cleanup3' of git://git.linaro.org/people/arnd/arm-soc: (79 commits)
ARM: SAMSUNG: Move fimc plat. device from board files to plat-samsung
ARM: SAMSUNG: Cleanup resources by using macro
ARM: SAMSUNG: Cleanup plat-samsung/devs.c and devs.h
ARM: S5P: To merge devs.c files to one devs.c
ARM: S3C64XX: To merge devs.c files to one devs.c
ARM: S3C24XX: To merge s3c24xx devs.c files to one devs.c
ARM: S5P64X0: Add Power Management support
ARM: S5P: Make the sleep code common for S5P series SoCs
ARM: S5P: Make the common S5P PM code conditionally compile
ARM: SAMSUNG: Move S5P header files to plat-samsung
ARM: SAMSUNG: Move S3C24XX header files to plat-samsung
ARM: SAMSUNG: Moving each SoC support header files
ARM: SAMSUNG: Consolidate plat/pll.h
ARM: SAMSUNG: Consolidate plat/pwm-clock.h
ARM: SAMSUNG: Cleanup mach/clkdev.h
ARM: SAMSUNG: remove sdhci default configuration setup platform helper
ARM: EXYNOS4: Add FIMC device on SMDKV310 board
ARM: EXYNOS4: Add header file protection macros
ARM: EXYNOS4: Add usb ehci device to the SMDKV310
ARM: S3C2443: Add hsspi-clock from pclk and rename S3C2443 hsspi sclk
...
Fix up conflicts in
- arch/arm/mach-exynos4/{Kconfig,clock.c}
ARM_CPU_SUSPEND, various random device tables (gah!)
- drivers/gpio/Makefile
sa1100 gpio added, samsung gpio drivers merged
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/sysmmu.h')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/sysmmu.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/sysmmu.h b/arch/arm/plat-samsung/include/plat/sysmmu.h new file mode 100644 index 0000000..5fe8ee0 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/sysmmu.h @@ -0,0 +1,95 @@ +/* linux/arch/arm/plat-samsung/include/plat/sysmmu.h + * + * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Samsung System MMU driver for S5P platform + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. +*/ + +#ifndef __PLAT_SAMSUNG_SYSMMU_H +#define __PLAT_SAMSUNG_SYSMMU_H __FILE__ + +enum S5P_SYSMMU_INTERRUPT_TYPE { + SYSMMU_PAGEFAULT, + SYSMMU_AR_MULTIHIT, + SYSMMU_AW_MULTIHIT, + SYSMMU_BUSERROR, + SYSMMU_AR_SECURITY, + SYSMMU_AR_ACCESS, + SYSMMU_AW_SECURITY, + SYSMMU_AW_PROTECTION, /* 7 */ + SYSMMU_FAULTS_NUM +}; + +#ifdef CONFIG_S5P_SYSTEM_MMU + +#include <mach/sysmmu.h> + +/** + * s5p_sysmmu_enable() - enable system mmu of ip + * @ips: The ip connected system mmu. + * #pgd: Base physical address of the 1st level page table + * + * This function enable system mmu to transfer address + * from virtual address to physical address + */ +void s5p_sysmmu_enable(sysmmu_ips ips, unsigned long pgd); + +/** + * s5p_sysmmu_disable() - disable sysmmu mmu of ip + * @ips: The ip connected system mmu. + * + * This function disable system mmu to transfer address + * from virtual address to physical address + */ +void s5p_sysmmu_disable(sysmmu_ips ips); + +/** + * s5p_sysmmu_set_tablebase_pgd() - set page table base address to refer page table + * @ips: The ip connected system mmu. + * @pgd: The page table base address. + * + * This function set page table base address + * When system mmu transfer address from virtaul address to physical address, + * system mmu refer address information from page table + */ +void s5p_sysmmu_set_tablebase_pgd(sysmmu_ips ips, unsigned long pgd); + +/** + * s5p_sysmmu_tlb_invalidate() - flush all TLB entry in system mmu + * @ips: The ip connected system mmu. + * + * This function flush all TLB entry in system mmu + */ +void s5p_sysmmu_tlb_invalidate(sysmmu_ips ips); + +/** s5p_sysmmu_set_fault_handler() - Fault handler for System MMUs + * @itype: type of fault. + * @pgtable_base: the physical address of page table base. This is 0 if @ips is + * SYSMMU_BUSERROR. + * @fault_addr: the device (virtual) address that the System MMU tried to + * translated. This is 0 if @ips is SYSMMU_BUSERROR. + * Called when interrupt occurred by the System MMUs + * The device drivers of peripheral devices that has a System MMU can implement + * a fault handler to resolve address translation fault by System MMU. + * The meanings of return value and parameters are described below. + + * return value: non-zero if the fault is correctly resolved. + * zero if the fault is not handled. + */ +void s5p_sysmmu_set_fault_handler(sysmmu_ips ips, + int (*handler)(enum S5P_SYSMMU_INTERRUPT_TYPE itype, + unsigned long pgtable_base, + unsigned long fault_addr)); +#else +#define s5p_sysmmu_enable(ips, pgd) do { } while (0) +#define s5p_sysmmu_disable(ips) do { } while (0) +#define s5p_sysmmu_set_tablebase_pgd(ips, pgd) do { } while (0) +#define s5p_sysmmu_tlb_invalidate(ips) do { } while (0) +#define s5p_sysmmu_set_fault_handler(ips, handler) do { } while (0) +#endif +#endif /* __ASM_PLAT_SYSMMU_H */ |