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/*
 * arch/xtensa/include/asm/xchal_vaddr_remap.h
 *
 * Xtensa macros for MMU V3 Support. Deals with re-mapping the Virtual
 * Memory Addresses from "Virtual == Physical" to their prevvious V2 MMU
 * mappings (KSEG at 0xD0000000 and KIO at 0XF0000000).
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 2008 - 2012 Tensilica Inc.
 *
 * Pete Delaney <piet@tensilica.com>
 * Marc Gauthier <marc@tensilica.com
 */

#ifndef _XTENSA_VECTORS_H
#define _XTENSA_VECTORS_H

#include <variant/core.h>
#include <platform/hardware.h>
#include <asm/kmem_layout.h>

#if XCHAL_HAVE_PTP_MMU
#define XCHAL_KIO_CACHED_VADDR		0xe0000000
#define XCHAL_KIO_BYPASS_VADDR		0xf0000000
#define XCHAL_KIO_DEFAULT_PADDR		0xf0000000
#else
#define XCHAL_KIO_BYPASS_VADDR		XCHAL_KIO_PADDR
#define XCHAL_KIO_DEFAULT_PADDR		0x90000000
#endif
#define XCHAL_KIO_SIZE			0x10000000

#if (!XCHAL_HAVE_PTP_MMU || XCHAL_HAVE_SPANNING_WAY) && defined(CONFIG_USE_OF)
#define XCHAL_KIO_PADDR			xtensa_get_kio_paddr()
#ifndef __ASSEMBLY__
extern unsigned long xtensa_kio_paddr;

static inline unsigned long xtensa_get_kio_paddr(void)
{
	return xtensa_kio_paddr;
}
#endif
#else
#define XCHAL_KIO_PADDR			XCHAL_KIO_DEFAULT_PADDR
#endif

#if defined(CONFIG_MMU)

#if XCHAL_HAVE_PTP_MMU && XCHAL_HAVE_SPANNING_WAY
/* Image Virtual Start Address */
#define KERNELOFFSET			(XCHAL_KSEG_CACHED_VADDR + \
					 CONFIG_KERNEL_LOAD_ADDRESS - \
					 XCHAL_KSEG_PADDR)
#else
#define KERNELOFFSET			CONFIG_KERNEL_LOAD_ADDRESS
#endif

#else /* !defined(CONFIG_MMU) */
  /* MMU Not being used - Virtual == Physical */

/* Location of the start of the kernel text, _start */
#define KERNELOFFSET			CONFIG_KERNEL_LOAD_ADDRESS


#endif /* CONFIG_MMU */

#define RESET_VECTOR1_VADDR		(XCHAL_RESET_VECTOR1_VADDR)
#ifdef CONFIG_VECTORS_OFFSET
#define VECBASE_VADDR			(KERNELOFFSET - CONFIG_VECTORS_OFFSET)
#else
#define VECBASE_VADDR			_vecbase
#endif

#if defined(XCHAL_HAVE_VECBASE) && XCHAL_HAVE_VECBASE

#define VECTOR_VADDR(offset)		(VECBASE_VADDR + offset)

#define USER_VECTOR_VADDR		VECTOR_VADDR(XCHAL_USER_VECOFS)
#define KERNEL_VECTOR_VADDR		VECTOR_VADDR(XCHAL_KERNEL_VECOFS)
#define DOUBLEEXC_VECTOR_VADDR		VECTOR_VADDR(XCHAL_DOUBLEEXC_VECOFS)
#define WINDOW_VECTORS_VADDR		VECTOR_VADDR(XCHAL_WINDOW_OF4_VECOFS)
#define INTLEVEL2_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL2_VECOFS)
#define INTLEVEL3_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL3_VECOFS)
#define INTLEVEL4_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL4_VECOFS)
#define INTLEVEL5_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL5_VECOFS)
#define INTLEVEL6_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL6_VECOFS)
#define INTLEVEL7_VECTOR_VADDR		VECTOR_VADDR(XCHAL_INTLEVEL7_VECOFS)
#define DEBUG_VECTOR_VADDR		VECTOR_VADDR(XCHAL_DEBUG_VECOFS)

/*
 * These XCHAL_* #defines from varian/core.h
 * are not valid to use with V3 MMU. Non-XCHAL
 * constants are defined above and should be used.
 */
#undef  XCHAL_VECBASE_RESET_VADDR
#undef  XCHAL_USER_VECTOR_VADDR
#undef  XCHAL_KERNEL_VECTOR_VADDR
#undef  XCHAL_DOUBLEEXC_VECTOR_VADDR
#undef  XCHAL_WINDOW_VECTORS_VADDR
#undef  XCHAL_INTLEVEL2_VECTOR_VADDR
#undef  XCHAL_INTLEVEL3_VECTOR_VADDR
#undef  XCHAL_INTLEVEL4_VECTOR_VADDR
#undef  XCHAL_INTLEVEL5_VECTOR_VADDR
#undef  XCHAL_INTLEVEL6_VECTOR_VADDR
#undef  XCHAL_INTLEVEL7_VECTOR_VADDR
#undef  XCHAL_DEBUG_VECTOR_VADDR

#else

#define USER_VECTOR_VADDR		XCHAL_USER_VECTOR_VADDR
#define KERNEL_VECTOR_VADDR		XCHAL_KERNEL_VECTOR_VADDR
#define DOUBLEEXC_VECTOR_VADDR		XCHAL_DOUBLEEXC_VECTOR_VADDR
#define WINDOW_VECTORS_VADDR		XCHAL_WINDOW_VECTORS_VADDR
#define INTLEVEL2_VECTOR_VADDR		XCHAL_INTLEVEL2_VECTOR_VADDR
#define INTLEVEL3_VECTOR_VADDR		XCHAL_INTLEVEL3_VECTOR_VADDR
#define INTLEVEL4_VECTOR_VADDR		XCHAL_INTLEVEL4_VECTOR_VADDR
#define INTLEVEL5_VECTOR_VADDR		XCHAL_INTLEVEL5_VECTOR_VADDR
#define INTLEVEL6_VECTOR_VADDR		XCHAL_INTLEVEL6_VECTOR_VADDR
#define INTLEVEL7_VECTOR_VADDR		XCHAL_INTLEVEL6_VECTOR_VADDR
#define DEBUG_VECTOR_VADDR		XCHAL_DEBUG_VECTOR_VADDR

#endif

#endif /* _XTENSA_VECTORS_H */

Filemanager

Name Type Size Permission Actions
Kbuild File 685 B 0644
asm-offsets.h File 35 B 0644
asm-uaccess.h File 4.11 KB 0644
asmmacro.h File 2.76 KB 0644
atomic.h File 7.38 KB 0644
barrier.h File 542 B 0644
bitops.h File 5.08 KB 0644
bootparam.h File 1.37 KB 0644
bugs.h File 451 B 0644
cache.h File 969 B 0644
cacheasm.h File 3.77 KB 0644
cacheflush.h File 5.76 KB 0644
checksum.h File 6 KB 0644
cmpxchg.h File 3.9 KB 0644
coprocessor.h File 5.05 KB 0644
current.h File 675 B 0644
delay.h File 1.63 KB 0644
dma-mapping.h File 855 B 0644
dma.h File 1.79 KB 0644
elf.h File 5.75 KB 0644
fixmap.h File 2.5 KB 0644
flat.h File 686 B 0644
ftrace.h File 979 B 0644
futex.h File 2.59 KB 0644
highmem.h File 2.33 KB 0644
hw_breakpoint.h File 1.45 KB 0644
hw_irq.h File 320 B 0644
initialize_mmu.h File 4.58 KB 0644
io.h File 2.09 KB 0644
irq.h File 1.46 KB 0644
irqflags.h File 1.99 KB 0644
kmem_layout.h File 2.07 KB 0644
mmu.h File 462 B 0644
mmu_context.h File 3.62 KB 0644
module.h File 525 B 0644
mxregs.h File 1.3 KB 0644
nommu_context.h File 602 B 0644
page.h File 5.69 KB 0644
pci-bridge.h File 2.16 KB 0644
pci.h File 1.37 KB 0644
perf_event.h File 108 B 0644
pgalloc.h File 1.84 KB 0644
pgtable.h File 14.89 KB 0644
platform.h File 1.75 KB 0644
processor.h File 7.44 KB 0644
ptrace.h File 3.74 KB 0644
regs.h File 3.87 KB 0644
segment.h File 376 B 0644
serial.h File 443 B 0644
shmparam.h File 561 B 0644
signal.h File 502 B 0644
smp.h File 967 B 0644
spinlock.h File 4.6 KB 0644
spinlock_types.h File 412 B 0644
stacktrace.h File 1.13 KB 0644
string.h File 2.65 KB 0644
switch_to.h File 601 B 0644
syscall.h File 982 B 0644
sysmem.h File 426 B 0644
thread_info.h File 3.62 KB 0644
timex.h File 1.79 KB 0644
tlb.h File 1.1 KB 0644
tlbflush.h File 5.53 KB 0644
traps.h File 1.87 KB 0644
types.h File 501 B 0644
uaccess.h File 8.67 KB 0644
ucontext.h File 540 B 0644
unaligned.h File 864 B 0644
unistd.h File 639 B 0644
user.h File 507 B 0644
vectors.h File 4.05 KB 0644
vga.h File 434 B 0644