/branches/gc/kernel/arch/mips32/include/mm/page.h |
---|
0,0 → 1,155 |
/* |
* Copyright (c) 2003-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_PAGE_H_ |
#define KERN_mips32_PAGE_H_ |
#include <arch/mm/frame.h> |
#define PAGE_WIDTH FRAME_WIDTH |
#define PAGE_SIZE FRAME_SIZE |
#define PAGE_COLOR_BITS 0 /* dummy */ |
#ifndef __ASM__ |
# define KA2PA(x) (((uintptr_t) (x)) - 0x80000000) |
# define PA2KA(x) (((uintptr_t) (x)) + 0x80000000) |
#else |
# define KA2PA(x) ((x) - 0x80000000) |
# define PA2KA(x) ((x) + 0x80000000) |
#endif |
#ifdef KERNEL |
/* |
* Implementation of generic 4-level page table interface. |
* |
* Page table layout: |
* - 32-bit virtual addresses |
* - Offset is 14 bits => pages are 16K long |
* - PTE's use similar format as CP0 EntryLo[01] registers => PTE is therefore 4 bytes long |
* - PTE's replace EntryLo v (valid) bit with p (present) bit |
* - PTE's use only one bit to distinguish between cacheable and uncacheable mappings |
* - PTE's define soft_valid field to ensure there is at least one 1 bit even if the p bit is cleared |
* - PTE's make use of CP0 EntryLo's two-bit reserved field for bit W (writable) and bit A (accessed) |
* - PTL0 has 64 entries (6 bits) |
* - PTL1 is not used |
* - PTL2 is not used |
* - PTL3 has 4096 entries (12 bits) |
*/ |
#define PTL0_ENTRIES_ARCH 64 |
#define PTL1_ENTRIES_ARCH 0 |
#define PTL2_ENTRIES_ARCH 0 |
#define PTL3_ENTRIES_ARCH 4096 |
#define PTL0_INDEX_ARCH(vaddr) ((vaddr)>>26) |
#define PTL1_INDEX_ARCH(vaddr) 0 |
#define PTL2_INDEX_ARCH(vaddr) 0 |
#define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>14) & 0xfff) |
#define SET_PTL0_ADDRESS_ARCH(ptl0) |
#define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *)(ptl0))[(i)].pfn<<12) |
#define GET_PTL2_ADDRESS_ARCH(ptl1, i) (ptl1) |
#define GET_PTL3_ADDRESS_ARCH(ptl2, i) (ptl2) |
#define GET_FRAME_ADDRESS_ARCH(ptl3, i) (((pte_t *)(ptl3))[(i)].pfn<<12) |
#define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *)(ptl0))[(i)].pfn = (a)>>12) |
#define SET_PTL2_ADDRESS_ARCH(ptl1, i, a) |
#define SET_PTL3_ADDRESS_ARCH(ptl2, i, a) |
#define SET_FRAME_ADDRESS_ARCH(ptl3, i, a) (((pte_t *)(ptl3))[(i)].pfn = (a)>>12) |
#define GET_PTL1_FLAGS_ARCH(ptl0, i) get_pt_flags((pte_t *)(ptl0), (index_t)(i)) |
#define GET_PTL2_FLAGS_ARCH(ptl1, i) PAGE_PRESENT |
#define GET_PTL3_FLAGS_ARCH(ptl2, i) PAGE_PRESENT |
#define GET_FRAME_FLAGS_ARCH(ptl3, i) get_pt_flags((pte_t *)(ptl3), (index_t)(i)) |
#define SET_PTL1_FLAGS_ARCH(ptl0, i, x) set_pt_flags((pte_t *)(ptl0), (index_t)(i), (x)) |
#define SET_PTL2_FLAGS_ARCH(ptl1, i, x) |
#define SET_PTL3_FLAGS_ARCH(ptl2, i, x) |
#define SET_FRAME_FLAGS_ARCH(ptl3, i, x) set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x)) |
#define PTE_VALID_ARCH(pte) (*((uint32_t *) (pte)) != 0) |
#define PTE_PRESENT_ARCH(pte) ((pte)->p != 0) |
#define PTE_GET_FRAME_ARCH(pte) ((pte)->pfn<<12) |
#define PTE_WRITABLE_ARCH(pte) ((pte)->w != 0) |
#define PTE_EXECUTABLE_ARCH(pte) 1 |
#ifndef __ASM__ |
#include <mm/mm.h> |
#include <arch/exception.h> |
static inline int get_pt_flags(pte_t *pt, index_t i) |
{ |
pte_t *p = &pt[i]; |
return ( |
(p->cacheable<<PAGE_CACHEABLE_SHIFT) | |
((!p->p)<<PAGE_PRESENT_SHIFT) | |
(1<<PAGE_USER_SHIFT) | |
(1<<PAGE_READ_SHIFT) | |
((p->w)<<PAGE_WRITE_SHIFT) | |
(1<<PAGE_EXEC_SHIFT) | |
(p->g<<PAGE_GLOBAL_SHIFT) |
); |
} |
static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
{ |
pte_t *p = &pt[i]; |
p->cacheable = (flags & PAGE_CACHEABLE) != 0; |
p->p = !(flags & PAGE_NOT_PRESENT); |
p->g = (flags & PAGE_GLOBAL) != 0; |
p->w = (flags & PAGE_WRITE) != 0; |
/* |
* Ensure that valid entries have at least one bit set. |
*/ |
p->soft_valid = 1; |
} |
extern void page_arch_init(void); |
#endif /* __ASM__ */ |
#endif /* KERNEL */ |
#endif |
/** @} |
*/ |
/branches/gc/kernel/arch/mips32/include/mm/tlb.h |
---|
0,0 → 1,166 |
/* |
* Copyright (c) 2003-2004 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_TLB_H_ |
#define KERN_mips32_TLB_H_ |
#include <arch/exception.h> |
#ifdef TLBCNT |
# define TLB_ENTRY_COUNT TLBCNT |
#else |
# define TLB_ENTRY_COUNT 48 |
#endif |
#define TLB_WIRED 1 |
#define TLB_KSTACK_WIRED_INDEX 0 |
#define TLB_PAGE_MASK_16K (0x3<<13) |
#define PAGE_UNCACHED 2 |
#define PAGE_CACHEABLE_EXC_WRITE 5 |
typedef union { |
struct { |
#ifdef BIG_ENDIAN |
unsigned : 2; /* zero */ |
unsigned pfn : 24; /* frame number */ |
unsigned c : 3; /* cache coherency attribute */ |
unsigned d : 1; /* dirty/write-protect bit */ |
unsigned v : 1; /* valid bit */ |
unsigned g : 1; /* global bit */ |
#else |
unsigned g : 1; /* global bit */ |
unsigned v : 1; /* valid bit */ |
unsigned d : 1; /* dirty/write-protect bit */ |
unsigned c : 3; /* cache coherency attribute */ |
unsigned pfn : 24; /* frame number */ |
unsigned : 2; /* zero */ |
#endif |
} __attribute__ ((packed)); |
uint32_t value; |
} entry_lo_t; |
typedef union { |
struct { |
#ifdef BIG_ENDIAN |
unsigned vpn2 : 19; |
unsigned : 5; |
unsigned asid : 8; |
#else |
unsigned asid : 8; |
unsigned : 5; |
unsigned vpn2 : 19; |
#endif |
} __attribute__ ((packed)); |
uint32_t value; |
} entry_hi_t; |
typedef union { |
struct { |
#ifdef BIG_ENDIAN |
unsigned : 7; |
unsigned mask : 12; |
unsigned : 13; |
#else |
unsigned : 13; |
unsigned mask : 12; |
unsigned : 7; |
#endif |
} __attribute__ ((packed)); |
uint32_t value; |
} page_mask_t; |
typedef union { |
struct { |
#ifdef BIG_ENDIAN |
unsigned p : 1; |
unsigned : 27; |
unsigned index : 4; |
#else |
unsigned index : 4; |
unsigned : 27; |
unsigned p : 1; |
#endif |
} __attribute__ ((packed)); |
uint32_t value; |
} tlb_index_t; |
/** Probe TLB for Matching Entry |
* |
* Probe TLB for Matching Entry. |
*/ |
static inline void tlbp(void) |
{ |
asm volatile ("tlbp\n\t"); |
} |
/** Read Indexed TLB Entry |
* |
* Read Indexed TLB Entry. |
*/ |
static inline void tlbr(void) |
{ |
asm volatile ("tlbr\n\t"); |
} |
/** Write Indexed TLB Entry |
* |
* Write Indexed TLB Entry. |
*/ |
static inline void tlbwi(void) |
{ |
asm volatile ("tlbwi\n\t"); |
} |
/** Write Random TLB Entry |
* |
* Write Random TLB Entry. |
*/ |
static inline void tlbwr(void) |
{ |
asm volatile ("tlbwr\n\t"); |
} |
#define tlb_invalidate(asid) tlb_invalidate_asid(asid) |
extern void tlb_invalid(istate_t *istate); |
extern void tlb_refill(istate_t *istate); |
extern void tlb_modified(istate_t *istate); |
#endif |
/** @} |
*/ |
/branches/gc/kernel/arch/mips32/include/mm/as.h |
---|
0,0 → 1,63 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_AS_H_ |
#define KERN_mips32_AS_H_ |
#define KERNEL_ADDRESS_SPACE_SHADOWED_ARCH 0 |
#define KERNEL_ADDRESS_SPACE_START_ARCH (unsigned long) 0x80000000 |
#define KERNEL_ADDRESS_SPACE_END_ARCH (unsigned long) 0xffffffff |
#define USER_ADDRESS_SPACE_START_ARCH (unsigned long) 0x00000000 |
#define USER_ADDRESS_SPACE_END_ARCH (unsigned long) 0x7fffffff |
#define USTACK_ADDRESS_ARCH (0x80000000 - PAGE_SIZE) |
typedef struct { |
} as_arch_t; |
#include <genarch/mm/as_pt.h> |
#define as_constructor_arch(as, flags) (as != as) |
#define as_destructor_arch(as) (as != as) |
#define as_create_arch(as, flags) (as != as) |
#define as_deinstall_arch(as) |
#define as_invalidate_translation_cache(as, page, cnt) |
extern void as_arch_init(void); |
#endif |
/** @} |
*/ |
/branches/gc/kernel/arch/mips32/include/mm/frame.h |
---|
0,0 → 1,52 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_FRAME_H_ |
#define KERN_mips32_FRAME_H_ |
#define FRAME_WIDTH 14 /* 16K */ |
#define FRAME_SIZE (1<<FRAME_WIDTH) |
#ifdef KERNEL |
#ifndef __ASM__ |
extern void frame_arch_init(void); |
#endif /* __ASM__ */ |
#endif /* KERNEL */ |
#endif |
/** @} |
*/ |
/branches/gc/kernel/arch/mips32/include/mm/memory_init.h |
---|
0,0 → 1,48 |
/* |
* Copyright (c) 2005 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_MEMORY_INIT_H_ |
#define KERN_mips32_MEMORY_INIT_H_ |
#include <config.h> |
/* When this function is called, we do not have ARC initiated |
* - provide some reasonable minimum and update it later |
*/ |
#define get_memory_size() CONFIG_MEMORY_SIZE |
#endif |
/** @} |
*/ |
/branches/gc/kernel/arch/mips32/include/mm/asid.h |
---|
0,0 → 1,47 |
/* |
* Copyright (c) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup mips32mm |
* @{ |
*/ |
/** @file |
*/ |
#ifndef KERN_mips32_ASID_H_ |
#define KERN_mips32_ASID_H_ |
#include <arch/types.h> |
#define ASID_MAX_ARCH 255 /* 2^8 - 1 */ |
typedef uint8_t asid_t; |
#endif |
/** @} |
*/ |