diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:32:01 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-21 10:32:01 -0700 |
commit | 9daeaa370526df1c19eba4780247bb7155541e38 (patch) | |
tree | 5ae2601c26e280e81d753c1fe65453a3b8b1d2a0 /arch/sparc/include/asm/pgtsun4c.h | |
parent | cb62ab71fe2b16e8203a0f0a2ef4eda23d761338 (diff) | |
parent | 1edc17832d8f49a0263d364c453ea35da0e4e2a6 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller:
1) Kill off support for sun4c and Cypress sun4m chips.
And as a result we were able to also kill off that ugly btfixup thing
that required multi-stage links of the final vmlinux image in the
Kbuild system. This should make the kbuild maintainers really happy.
Thanks a lot to Sam Ravnborg for his tireless efforts to get this
going.
2) Convert sparc64 to nobootmem. I suspect now with sparc32 being a lot
cleaner, it should be able to fall in line and modernize in this area
too.
3) Make sparc32 use generic clockevents, from Tkhai Kirill.
[ I fixed up the BPF rules, and tried to clean up the build rules too.
But I don't have - or want - a sparc cross-build environment, so the
BPF rule bug and the related build cleanup was all done with just a
bare "make -n" pseudo-test. - Linus ]
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: (110 commits)
sparc32: use flushi when run-time patching in per_cpu_patch
sparc32: fix cpuid_patch run-time patching
sparc32: drop unused inline functions in srmmu.c
sparc32: drop unused functions in pgtsrmmu.h
sparc32,leon: move leon mmu functions to leon_mm.c
sparc32,leon: remove duplicate definitions in leon.h
sparc32,leon: remove duplicate UART register definitions
sparc32,leon: move leon ASI definitions to asi.h
sparc32: move trap table to a separate file
sparc64: renamed ttable.S to ttable_64.S
sparc32: Remove asm/sysen.h header.
sparc32: Delete asm/smpprim.h
sparc32: Remove unused empty_bad_page{,_table} declarations.
sparc32: Kill boot_cpu_id4
sparc32: Move GET_PROCESSOR*_ID() out of asm/asmmacro.h
sparc32: Remove completely unused code from asm/cache.h
sparc32: Add ucmpdi2.o to obj-y instead of lib-y.
sparc32: add ucmpdi2
sparc: introduce arch/sparc/Kbuild
sparc: remove obsolete documentation
...
Diffstat (limited to 'arch/sparc/include/asm/pgtsun4c.h')
-rw-r--r-- | arch/sparc/include/asm/pgtsun4c.h | 172 |
1 files changed, 0 insertions, 172 deletions
diff --git a/arch/sparc/include/asm/pgtsun4c.h b/arch/sparc/include/asm/pgtsun4c.h deleted file mode 100644 index aeb25e91217..00000000000 --- a/arch/sparc/include/asm/pgtsun4c.h +++ /dev/null @@ -1,172 +0,0 @@ -/* - * pgtsun4c.h: Sun4c specific pgtable.h defines and code. - * - * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) - */ -#ifndef _SPARC_PGTSUN4C_H -#define _SPARC_PGTSUN4C_H - -#include <asm/contregs.h> - -/* PMD_SHIFT determines the size of the area a second-level page table can map */ -#define SUN4C_PMD_SHIFT 22 - -/* PGDIR_SHIFT determines what a third-level page table entry can map */ -#define SUN4C_PGDIR_SHIFT 22 -#define SUN4C_PGDIR_SIZE (1UL << SUN4C_PGDIR_SHIFT) -#define SUN4C_PGDIR_MASK (~(SUN4C_PGDIR_SIZE-1)) -#define SUN4C_PGDIR_ALIGN(addr) (((addr)+SUN4C_PGDIR_SIZE-1)&SUN4C_PGDIR_MASK) - -/* To represent how the sun4c mmu really lays things out. */ -#define SUN4C_REAL_PGDIR_SHIFT 18 -#define SUN4C_REAL_PGDIR_SIZE (1UL << SUN4C_REAL_PGDIR_SHIFT) -#define SUN4C_REAL_PGDIR_MASK (~(SUN4C_REAL_PGDIR_SIZE-1)) -#define SUN4C_REAL_PGDIR_ALIGN(addr) (((addr)+SUN4C_REAL_PGDIR_SIZE-1)&SUN4C_REAL_PGDIR_MASK) - -/* 16 bit PFN on sun4c */ -#define SUN4C_PFN_MASK 0xffff - -/* Don't increase these unless the structures in sun4c.c are fixed */ -#define SUN4C_MAX_SEGMAPS 256 -#define SUN4C_MAX_CONTEXTS 16 - -/* - * To be efficient, and not have to worry about allocating such - * a huge pgd, we make the kernel sun4c tables each hold 1024 - * entries and the pgd similarly just like the i386 tables. - */ -#define SUN4C_PTRS_PER_PTE 1024 -#define SUN4C_PTRS_PER_PMD 1 -#define SUN4C_PTRS_PER_PGD 1024 - -/* - * Sparc SUN4C pte fields. - */ -#define _SUN4C_PAGE_VALID 0x80000000 -#define _SUN4C_PAGE_SILENT_READ 0x80000000 /* synonym */ -#define _SUN4C_PAGE_DIRTY 0x40000000 -#define _SUN4C_PAGE_SILENT_WRITE 0x40000000 /* synonym */ -#define _SUN4C_PAGE_PRIV 0x20000000 /* privileged page */ -#define _SUN4C_PAGE_NOCACHE 0x10000000 /* non-cacheable page */ -#define _SUN4C_PAGE_PRESENT 0x08000000 /* implemented in software */ -#define _SUN4C_PAGE_IO 0x04000000 /* I/O page */ -#define _SUN4C_PAGE_FILE 0x02000000 /* implemented in software */ -#define _SUN4C_PAGE_READ 0x00800000 /* implemented in software */ -#define _SUN4C_PAGE_WRITE 0x00400000 /* implemented in software */ -#define _SUN4C_PAGE_ACCESSED 0x00200000 /* implemented in software */ -#define _SUN4C_PAGE_MODIFIED 0x00100000 /* implemented in software */ - -#define _SUN4C_READABLE (_SUN4C_PAGE_READ|_SUN4C_PAGE_SILENT_READ|\ - _SUN4C_PAGE_ACCESSED) -#define _SUN4C_WRITEABLE (_SUN4C_PAGE_WRITE|_SUN4C_PAGE_SILENT_WRITE|\ - _SUN4C_PAGE_MODIFIED) - -#define _SUN4C_PAGE_CHG_MASK (0xffff|_SUN4C_PAGE_ACCESSED|_SUN4C_PAGE_MODIFIED) - -#define SUN4C_PAGE_NONE __pgprot(_SUN4C_PAGE_PRESENT) -#define SUN4C_PAGE_SHARED __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE|\ - _SUN4C_PAGE_WRITE) -#define SUN4C_PAGE_COPY __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE) -#define SUN4C_PAGE_READONLY __pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE) -#define SUN4C_PAGE_KERNEL __pgprot(_SUN4C_READABLE|_SUN4C_WRITEABLE|\ - _SUN4C_PAGE_DIRTY|_SUN4C_PAGE_PRIV) - -/* SUN4C swap entry encoding - * - * We use 5 bits for the type and 19 for the offset. This gives us - * 32 swapfiles of 4GB each. Encoding looks like: - * - * RRRRRRRRooooooooooooooooooottttt - * fedcba9876543210fedcba9876543210 - * - * The top 8 bits are reserved for protection and status bits, especially - * FILE and PRESENT. - */ -#define SUN4C_SWP_TYPE_MASK 0x1f -#define SUN4C_SWP_OFF_MASK 0x7ffff -#define SUN4C_SWP_OFF_SHIFT 5 - -#ifndef __ASSEMBLY__ - -static inline unsigned long sun4c_get_synchronous_error(void) -{ - unsigned long sync_err; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (sync_err) : - "r" (AC_SYNC_ERR), "i" (ASI_CONTROL)); - return sync_err; -} - -static inline unsigned long sun4c_get_synchronous_address(void) -{ - unsigned long sync_addr; - - __asm__ __volatile__("lda [%1] %2, %0\n\t" : - "=r" (sync_addr) : - "r" (AC_SYNC_VA), "i" (ASI_CONTROL)); - return sync_addr; -} - -/* SUN4C pte, segmap, and context manipulation */ -static inline unsigned long sun4c_get_segmap(unsigned long addr) -{ - register unsigned long entry; - - __asm__ __volatile__("\n\tlduba [%1] %2, %0\n\t" : - "=r" (entry) : - "r" (addr), "i" (ASI_SEGMAP)); - - return entry; -} - -static inline void sun4c_put_segmap(unsigned long addr, unsigned long entry) -{ - - __asm__ __volatile__("\n\tstba %1, [%0] %2; nop; nop; nop;\n\t" : : - "r" (addr), "r" (entry), - "i" (ASI_SEGMAP) - : "memory"); -} - -static inline unsigned long sun4c_get_pte(unsigned long addr) -{ - register unsigned long entry; - - __asm__ __volatile__("\n\tlda [%1] %2, %0\n\t" : - "=r" (entry) : - "r" (addr), "i" (ASI_PTE)); - return entry; -} - -static inline void sun4c_put_pte(unsigned long addr, unsigned long entry) -{ - __asm__ __volatile__("\n\tsta %1, [%0] %2; nop; nop; nop;\n\t" : : - "r" (addr), - "r" ((entry & ~(_SUN4C_PAGE_PRESENT))), "i" (ASI_PTE) - : "memory"); -} - -static inline int sun4c_get_context(void) -{ - register int ctx; - - __asm__ __volatile__("\n\tlduba [%1] %2, %0\n\t" : - "=r" (ctx) : - "r" (AC_CONTEXT), "i" (ASI_CONTROL)); - - return ctx; -} - -static inline int sun4c_set_context(int ctx) -{ - __asm__ __volatile__("\n\tstba %0, [%1] %2; nop; nop; nop;\n\t" : : - "r" (ctx), "r" (AC_CONTEXT), "i" (ASI_CONTROL) - : "memory"); - - return ctx; -} - -#endif /* !(__ASSEMBLY__) */ - -#endif /* !(_SPARC_PGTSUN4C_H) */ |