From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/sparc/prom/palloc.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 arch/sparc/prom/palloc.c (limited to 'arch/sparc/prom/palloc.c') diff --git a/arch/sparc/prom/palloc.c b/arch/sparc/prom/palloc.c new file mode 100644 index 000000000000..84ce8bc54473 --- /dev/null +++ b/arch/sparc/prom/palloc.c @@ -0,0 +1,44 @@ +/* $Id: palloc.c,v 1.4 1996/04/25 06:09:48 davem Exp $ + * palloc.c: Memory allocation from the Sun PROM. + * + * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) + */ + +#include +#include + +/* You should not call these routines after memory management + * has been initialized in the kernel, if fact you should not + * use these if at all possible in the kernel. They are mainly + * to be used for a bootloader for temporary allocations which + * it will free before jumping into the kernel it has loaded. + * + * Also, these routines don't work on V0 proms, only V2 and later. + */ + +/* Allocate a chunk of memory of size 'num_bytes' giving a suggestion + * of virtual_hint as the preferred virtual base address of this chunk. + * There are no guarantees that you will get the allocation, or that + * the prom will abide by your "hint". So check your return value. + */ +char * +prom_alloc(char *virtual_hint, unsigned int num_bytes) +{ + if(prom_vers == PROM_V0) return (char *) 0x0; + if(num_bytes == 0x0) return (char *) 0x0; + return (*(romvec->pv_v2devops.v2_dumb_mem_alloc))(virtual_hint, num_bytes); +} + +/* Free a previously allocated chunk back to the prom at virtual address + * 'vaddr' of size 'num_bytes'. NOTE: This vaddr is not the hint you + * used for the allocation, but the virtual address the prom actually + * returned to you. They may be have been the same, they may have not, + * doesn't matter. + */ +void +prom_free(char *vaddr, unsigned int num_bytes) +{ + if((prom_vers == PROM_V0) || (num_bytes == 0x0)) return; + (*(romvec->pv_v2devops.v2_dumb_mem_free))(vaddr, num_bytes); + return; +} -- cgit v1.2.3