118 lines
3.0 KiB
C
118 lines
3.0 KiB
C
|
/*
|
||
|
* Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
|
||
|
*
|
||
|
* SPDX-License-Identifier: BSD-3-Clause
|
||
|
*/
|
||
|
|
||
|
#include <debug.h>
|
||
|
#include <platform_def.h>
|
||
|
#include <xlat_tables_defs.h>
|
||
|
#include <xlat_tables_v2.h>
|
||
|
|
||
|
#include "xlat_tables_private.h"
|
||
|
|
||
|
/*
|
||
|
* Each platform can define the size of its physical and virtual address spaces.
|
||
|
* If the platform hasn't defined one or both of them, default to
|
||
|
* ADDR_SPACE_SIZE. The latter is deprecated, though.
|
||
|
*/
|
||
|
#if ERROR_DEPRECATED
|
||
|
# ifdef ADDR_SPACE_SIZE
|
||
|
# error "ADDR_SPACE_SIZE is deprecated. Use PLAT_xxx_ADDR_SPACE_SIZE instead."
|
||
|
# endif
|
||
|
#elif defined(ADDR_SPACE_SIZE)
|
||
|
# ifndef PLAT_PHY_ADDR_SPACE_SIZE
|
||
|
# define PLAT_PHY_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
|
||
|
# endif
|
||
|
# ifndef PLAT_VIRT_ADDR_SPACE_SIZE
|
||
|
# define PLAT_VIRT_ADDR_SPACE_SIZE ADDR_SPACE_SIZE
|
||
|
# endif
|
||
|
#endif
|
||
|
|
||
|
/*
|
||
|
* Allocate and initialise the default translation context for the BL image
|
||
|
* currently executing.
|
||
|
*/
|
||
|
REGISTER_XLAT_CONTEXT(tf, MAX_MMAP_REGIONS, MAX_XLAT_TABLES,
|
||
|
PLAT_VIRT_ADDR_SPACE_SIZE, PLAT_PHY_ADDR_SPACE_SIZE);
|
||
|
|
||
|
void mmap_add_region(unsigned long long base_pa, uintptr_t base_va, size_t size,
|
||
|
unsigned int attr)
|
||
|
{
|
||
|
mmap_region_t mm = MAP_REGION(base_pa, base_va, size, attr);
|
||
|
|
||
|
mmap_add_region_ctx(&tf_xlat_ctx, &mm);
|
||
|
}
|
||
|
|
||
|
void mmap_add(const mmap_region_t *mm)
|
||
|
{
|
||
|
mmap_add_ctx(&tf_xlat_ctx, mm);
|
||
|
}
|
||
|
|
||
|
#if PLAT_XLAT_TABLES_DYNAMIC
|
||
|
|
||
|
int mmap_add_dynamic_region(unsigned long long base_pa, uintptr_t base_va,
|
||
|
size_t size, unsigned int attr)
|
||
|
{
|
||
|
mmap_region_t mm = MAP_REGION(base_pa, base_va, size, attr);
|
||
|
|
||
|
return mmap_add_dynamic_region_ctx(&tf_xlat_ctx, &mm);
|
||
|
}
|
||
|
|
||
|
int mmap_remove_dynamic_region(uintptr_t base_va, size_t size)
|
||
|
{
|
||
|
return mmap_remove_dynamic_region_ctx(&tf_xlat_ctx,
|
||
|
base_va, size);
|
||
|
}
|
||
|
|
||
|
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
|
||
|
|
||
|
void init_xlat_tables(void)
|
||
|
{
|
||
|
init_xlat_tables_ctx(&tf_xlat_ctx);
|
||
|
}
|
||
|
|
||
|
/*
|
||
|
* If dynamic allocation of new regions is disabled then by the time we call the
|
||
|
* function enabling the MMU, we'll have registered all the memory regions to
|
||
|
* map for the system's lifetime. Therefore, at this point we know the maximum
|
||
|
* physical address that will ever be mapped.
|
||
|
*
|
||
|
* If dynamic allocation is enabled then we can't make any such assumption
|
||
|
* because the maximum physical address could get pushed while adding a new
|
||
|
* region. Therefore, in this case we have to assume that the whole address
|
||
|
* space size might be mapped.
|
||
|
*/
|
||
|
#ifdef PLAT_XLAT_TABLES_DYNAMIC
|
||
|
#define MAX_PHYS_ADDR tf_xlat_ctx.pa_max_address
|
||
|
#else
|
||
|
#define MAX_PHYS_ADDR tf_xlat_ctx.max_pa
|
||
|
#endif
|
||
|
|
||
|
#ifdef AARCH32
|
||
|
|
||
|
void enable_mmu_secure(unsigned int flags)
|
||
|
{
|
||
|
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
|
||
|
tf_xlat_ctx.va_max_address);
|
||
|
enable_mmu_direct(flags);
|
||
|
}
|
||
|
|
||
|
#else
|
||
|
|
||
|
void enable_mmu_el1(unsigned int flags)
|
||
|
{
|
||
|
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
|
||
|
tf_xlat_ctx.va_max_address);
|
||
|
enable_mmu_direct_el1(flags);
|
||
|
}
|
||
|
|
||
|
void enable_mmu_el3(unsigned int flags)
|
||
|
{
|
||
|
setup_mmu_cfg(flags, tf_xlat_ctx.base_table, MAX_PHYS_ADDR,
|
||
|
tf_xlat_ctx.va_max_address);
|
||
|
enable_mmu_direct_el3(flags);
|
||
|
}
|
||
|
|
||
|
#endif /* AARCH32 */
|