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author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 22:42:43 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-06-14 22:42:43 +0200 |
commit | 2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc (patch) | |
tree | e35a625496acc6ac852846d40b8851186b9d1ac4 /arch/arm/plat-omap/iopgtable.h | |
parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 (diff) | |
parent | MAINTAINERS: EB110ATX is not ebsa110 (diff) | |
download | linux-2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc.tar.xz linux-2cf4d4514d5b43c1f3b64bd0ec8b9853bde8f1dc.zip |
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (417 commits)
MAINTAINERS: EB110ATX is not ebsa110
MAINTAINERS: update Eric Miao's email address and status
fb: add support of LCD display controller on pxa168/910 (base layer)
[ARM] 5552/1: ep93xx get_uart_rate(): use EP93XX_SYSCON_PWRCNT and EP93XX_SYSCON_PWRCN
[ARM] pxa/sharpsl_pm: zaurus needs generic pxa suspend/resume routines
[ARM] 5544/1: Trust PrimeCell resource sizes
[ARM] pxa/sharpsl_pm: cleanup of gpio-related code.
[ARM] pxa/sharpsl_pm: drop set_irq_type calls
[ARM] pxa/sharpsl_pm: merge pxa-specific code into generic one
[ARM] pxa/sharpsl_pm: merge the two sharpsl_pm.c since it's now pxa specific
[ARM] sa1100: remove unused collie_pm.c
[ARM] pxa: fix the conflicting non-static declarations of global_gpios[]
[ARM] 5550/1: Add default configure file for w90p910 platform
[ARM] 5549/1: Add clock api for w90p910 platform.
[ARM] 5548/1: Add gpio api for w90p910 platform
[ARM] 5551/1: Add multi-function pin api for w90p910 platform.
[ARM] Make ARM_VIC_NR depend on ARM_VIC
[ARM] 5546/1: ARM PL022 SSP/SPI driver v3
ARM: OMAP4: SMP: Update defconfig for OMAP4430
ARM: OMAP4: SMP: Enable SMP support for OMAP4430
...
Diffstat (limited to 'arch/arm/plat-omap/iopgtable.h')
-rw-r--r-- | arch/arm/plat-omap/iopgtable.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/iopgtable.h b/arch/arm/plat-omap/iopgtable.h new file mode 100644 index 000000000000..37dac434c7a1 --- /dev/null +++ b/arch/arm/plat-omap/iopgtable.h @@ -0,0 +1,72 @@ +/* + * omap iommu: pagetable definitions + * + * Copyright (C) 2008-2009 Nokia Corporation + * + * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com> + * + * 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_OMAP_IOMMU_H +#define __PLAT_OMAP_IOMMU_H + +#define IOPGD_SHIFT 20 +#define IOPGD_SIZE (1 << IOPGD_SHIFT) +#define IOPGD_MASK (~(IOPGD_SIZE - 1)) +#define IOSECTION_MASK IOPGD_MASK +#define PTRS_PER_IOPGD (1 << (32 - IOPGD_SHIFT)) +#define IOPGD_TABLE_SIZE (PTRS_PER_IOPGD * sizeof(u32)) + +#define IOSUPER_SIZE (IOPGD_SIZE << 4) +#define IOSUPER_MASK (~(IOSUPER_SIZE - 1)) + +#define IOPTE_SHIFT 12 +#define IOPTE_SIZE (1 << IOPTE_SHIFT) +#define IOPTE_MASK (~(IOPTE_SIZE - 1)) +#define IOPAGE_MASK IOPTE_MASK +#define PTRS_PER_IOPTE (1 << (IOPGD_SHIFT - IOPTE_SHIFT)) +#define IOPTE_TABLE_SIZE (PTRS_PER_IOPTE * sizeof(u32)) + +#define IOLARGE_SIZE (IOPTE_SIZE << 4) +#define IOLARGE_MASK (~(IOLARGE_SIZE - 1)) + +#define IOPGD_TABLE (1 << 0) +#define IOPGD_SECTION (2 << 0) +#define IOPGD_SUPER (1 << 18 | 2 << 0) + +#define IOPTE_SMALL (2 << 0) +#define IOPTE_LARGE (1 << 0) + +#define iopgd_index(da) (((da) >> IOPGD_SHIFT) & (PTRS_PER_IOPGD - 1)) +#define iopgd_offset(obj, da) ((obj)->iopgd + iopgd_index(da)) + +#define iopte_paddr(iopgd) (*iopgd & ~((1 << 10) - 1)) +#define iopte_vaddr(iopgd) ((u32 *)phys_to_virt(iopte_paddr(iopgd))) + +#define iopte_index(da) (((da) >> IOPTE_SHIFT) & (PTRS_PER_IOPTE - 1)) +#define iopte_offset(iopgd, da) (iopte_vaddr(iopgd) + iopte_index(da)) + +static inline u32 iotlb_init_entry(struct iotlb_entry *e, u32 da, u32 pa, + u32 flags) +{ + memset(e, 0, sizeof(*e)); + + e->da = da; + e->pa = pa; + e->valid = 1; + /* FIXME: add OMAP1 support */ + e->pgsz = flags & MMU_CAM_PGSZ_MASK; + e->endian = flags & MMU_RAM_ENDIAN_MASK; + e->elsz = flags & MMU_RAM_ELSZ_MASK; + e->mixed = flags & MMU_RAM_MIXED_MASK; + + return iopgsz_to_bytes(e->pgsz); +} + +#define to_iommu(dev) \ + (struct iommu *)platform_get_drvdata(to_platform_device(dev)) + +#endif /* __PLAT_OMAP_IOMMU_H */ |