| /kernel/trunk/arch/mips32/include/mm/page.h |
|---|
| 0,0 → 1,122 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_PAGE_H__ |
| #define __mips32_PAGE_H__ |
| #define PAGE_SIZE FRAME_SIZE |
| #ifndef __ASM__ |
| # define KA2PA(x) (((__address) (x)) - 0x80000000) |
| # define PA2KA(x) (((__address) (x)) + 0x80000000) |
| #else |
| # define KA2PA(x) ((x) - 0x80000000) |
| # define PA2KA(x) ((x) + 0x80000000) |
| #endif |
| /* |
| * Implementation of generic 4-level page table interface. |
| * NOTE: this implementation is under construction |
| * |
| * 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 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_INDEX_ARCH(vaddr) ((vaddr)>>26) |
| #define PTL1_INDEX_ARCH(vaddr) 0 |
| #define PTL2_INDEX_ARCH(vaddr) 0 |
| #define PTL3_INDEX_ARCH(vaddr) (((vaddr)>>14)&0x3fff) |
| #define GET_PTL0_ADDRESS_ARCH() (PTL0) |
| #define SET_PTL0_ADDRESS_ARCH(ptl0) (PTL0 = (pte_t *)(ptl0)) |
| #define GET_PTL1_ADDRESS_ARCH(ptl0, i) (((pte_t *)(ptl0))[(i)].lo.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)].lo.pfn<<12) |
| #define SET_PTL1_ADDRESS_ARCH(ptl0, i, a) (((pte_t *)(ptl0))[(i)].lo.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)].lo.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)) |
| #ifndef __ASM__ |
| #include <arch/mm/tlb.h> |
| #include <mm/page.h> |
| #include <arch/mm/frame.h> |
| #include <arch/types.h> |
| static inline int get_pt_flags(pte_t *pt, index_t i) |
| { |
| pte_t *p = &pt[i]; |
| return ( |
| ((p->lo.c>PAGE_UNCACHED)<<PAGE_CACHEABLE_SHIFT) | |
| ((!p->lo.v)<<PAGE_PRESENT_SHIFT) | |
| (1<<PAGE_USER_SHIFT) | |
| (1<<PAGE_READ_SHIFT) | |
| ((p->w)<<PAGE_WRITE_SHIFT) | |
| (1<<PAGE_EXEC_SHIFT) |
| ); |
| } |
| static inline void set_pt_flags(pte_t *pt, index_t i, int flags) |
| { |
| pte_t *p = &pt[i]; |
| p->lo.c = (flags & PAGE_CACHEABLE) != 0 ? PAGE_CACHEABLE_EXC_WRITE : PAGE_UNCACHED; |
| p->lo.v = !(flags & PAGE_NOT_PRESENT); |
| p->w = (flags & PAGE_WRITE) != 0; |
| } |
| extern void page_arch_init(void); |
| extern pte_t *PTL0; |
| #endif /* __ASM__ */ |
| #endif |
| /kernel/trunk/arch/mips32/include/mm/tlb.h |
|---|
| 0,0 → 1,139 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_TLB_H__ |
| #define __mips32_TLB_H__ |
| #include <arch/exception.h> |
| #include <typedefs.h> |
| #define TLB_SIZE 48 |
| #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 entry_lo entry_lo_t; |
| typedef union entry_hi entry_hi_t; |
| typedef union page_mask page_mask_t; |
| typedef union index tlb_index_t; |
| union entry_lo { |
| struct { |
| 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 */ |
| } __attribute__ ((packed)); |
| __u32 value; |
| }; |
| union pte { |
| entry_lo_t lo; |
| struct { |
| unsigned : 30; |
| unsigned w : 1; /* writable */ |
| unsigned a : 1; /* accessed */ |
| } __attribute__ ((packed)); |
| }; |
| union entry_hi { |
| struct { |
| unsigned asid : 8; |
| unsigned : 5; |
| unsigned vpn2 : 19; |
| } __attribute__ ((packed)); |
| __u32 value; |
| }; |
| union page_mask { |
| struct { |
| unsigned : 13; |
| unsigned mask : 12; |
| unsigned : 7; |
| } __attribute__ ((packed)); |
| __u32 value; |
| }; |
| union index { |
| struct { |
| unsigned index : 4; |
| unsigned : 27; |
| unsigned p : 1; |
| } __attribute__ ((packed)); |
| __u32 value; |
| }; |
| /** 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"); |
| } |
| extern void tlb_invalid(struct exception_regdump *pstate); |
| extern void tlb_refill(struct exception_regdump *pstate); |
| extern void tlb_modified(struct exception_regdump *pstate); |
| #endif |
| /kernel/trunk/arch/mips32/include/mm/asid.h |
|---|
| 0,0 → 1,45 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_ASID_H__ |
| #define __mips32_ASID_H__ |
| #include <arch/types.h> |
| #include <typedefs.h> |
| #define ASIDS 256 |
| #define ASID_INVALID 0 |
| #define ASID_START 1 |
| typedef __u8 asid_t; |
| extern asid_t asid_get(void); |
| extern void asid_put(asid_t asid); |
| extern bool asid_has_conflicts(asid_t asid); |
| #endif |
| /kernel/trunk/arch/mips32/include/mm/vm.h |
|---|
| 0,0 → 1,46 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_VM_H__ |
| #define __mips32_VM_H__ |
| #include <arch/types.h> |
| #include <typedefs.h> |
| #define KERNEL_ADDRESS_SPACE_START_ARCH (__address) 0x80000000 |
| #define KERNEL_ADDRESS_SPACE_END_ARCH (__address) 0xffffffff |
| #define USER_ADDRESS_SPACE_START_ARCH (__address) 0x00000000 |
| #define USER_ADDRESS_SPACE_END_ARCH (__address) 0x7fffffff |
| #define UTEXT_ADDRESS_ARCH 0x00004000 |
| #define USTACK_ADDRESS_ARCH (0x80000000-PAGE_SIZE) |
| #define UDATA_ADDRESS_ARCH 0x01001000 |
| extern void vm_install_arch(vm_t *vm); |
| #endif |
| /kernel/trunk/arch/mips32/include/mm/frame.h |
|---|
| 0,0 → 1,36 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_FRAME_H__ |
| #define __mips32_FRAME_H__ |
| #define FRAME_SIZE 16384 |
| extern void frame_arch_init(void); |
| #endif |
| /kernel/trunk/arch/mips32/include/mm/memory_init.h |
|---|
| 0,0 → 1,37 |
| /* |
| * 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. |
| */ |
| #ifndef __mips32_MEMORY_INIT_H__ |
| #define __mips32_MEMORY_INIT_H__ |
| #include <config.h> |
| #define get_memory_size() CONFIG_MEMORY_SIZE |
| //#define get_memory_size() 150*1024*1024 |
| #endif |