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/*
 * Kernel virtual memory layout definitions.
 *
 * 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) 2016 Cadence Design Systems Inc.
 */

#ifndef _XTENSA_KMEM_LAYOUT_H
#define _XTENSA_KMEM_LAYOUT_H

#include <asm/types.h>

#ifdef CONFIG_MMU

/*
 * Fixed TLB translations in the processor.
 */

#define XCHAL_PAGE_TABLE_VADDR	__XTENSA_UL_CONST(0x80000000)
#define XCHAL_PAGE_TABLE_SIZE	__XTENSA_UL_CONST(0x00400000)

#if defined(CONFIG_XTENSA_KSEG_MMU_V2)

#define XCHAL_KSEG_CACHED_VADDR	__XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR	__XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_SIZE		__XTENSA_UL_CONST(0x08000000)
#define XCHAL_KSEG_ALIGNMENT	__XTENSA_UL_CONST(0x08000000)
#define XCHAL_KSEG_TLB_WAY	5
#define XCHAL_KIO_TLB_WAY	6

#elif defined(CONFIG_XTENSA_KSEG_256M)

#define XCHAL_KSEG_CACHED_VADDR	__XTENSA_UL_CONST(0xb0000000)
#define XCHAL_KSEG_BYPASS_VADDR	__XTENSA_UL_CONST(0xc0000000)
#define XCHAL_KSEG_SIZE		__XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_ALIGNMENT	__XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_TLB_WAY	6
#define XCHAL_KIO_TLB_WAY	6

#elif defined(CONFIG_XTENSA_KSEG_512M)

#define XCHAL_KSEG_CACHED_VADDR	__XTENSA_UL_CONST(0xa0000000)
#define XCHAL_KSEG_BYPASS_VADDR	__XTENSA_UL_CONST(0xc0000000)
#define XCHAL_KSEG_SIZE		__XTENSA_UL_CONST(0x20000000)
#define XCHAL_KSEG_ALIGNMENT	__XTENSA_UL_CONST(0x10000000)
#define XCHAL_KSEG_TLB_WAY	6
#define XCHAL_KIO_TLB_WAY	6

#else
#error Unsupported KSEG configuration
#endif

#ifdef CONFIG_KSEG_PADDR
#define XCHAL_KSEG_PADDR        __XTENSA_UL_CONST(CONFIG_KSEG_PADDR)
#else
#define XCHAL_KSEG_PADDR	__XTENSA_UL_CONST(0x00000000)
#endif

#if XCHAL_KSEG_PADDR & (XCHAL_KSEG_ALIGNMENT - 1)
#error XCHAL_KSEG_PADDR is not properly aligned to XCHAL_KSEG_ALIGNMENT
#endif

#else

#define XCHAL_KSEG_CACHED_VADDR	__XTENSA_UL_CONST(0xd0000000)
#define XCHAL_KSEG_BYPASS_VADDR	__XTENSA_UL_CONST(0xd8000000)
#define XCHAL_KSEG_SIZE		__XTENSA_UL_CONST(0x08000000)

#endif

#endif

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