Author: blueswirl
Date: 2009-07-31 13:15:30 +0200 (Fri, 31 Jul 2009)
New Revision: 516
Added:
trunk/openbios-devel/arch/sparc64/ofmem_sparc64.c
trunk/openbios-devel/arch/sparc64/ofmem_sparc64.h
Modified:
trunk/openbios-devel/arch/sparc64/build.xml
trunk/openbios-devel/arch/sparc64/lib.c
trunk/openbios-devel/arch/sparc64/spitfire.h
Log:
Sparc64 ofmem implementation (Igor Kovalenko)
Add sparc64 ofmem implementation.
Modified: trunk/openbios-devel/arch/sparc64/build.xml
===================================================================
--- trunk/openbios-devel/arch/sparc64/build.xml 2009-07-31 11:13:16 UTC (rev 515)
+++ trunk/openbios-devel/arch/sparc64/build.xml 2009-07-31 11:15:30 UTC (rev 516)
@@ -19,6 +19,7 @@
<object source="forthload.c"/>
<object source="fcodeload.c"/>
<object source="loadfs.c"/>
+ <object source="ofmem_sparc64.c"/>
</library>
<executable name="target/arch/sparc64/entry.o" target="target">
Modified: trunk/openbios-devel/arch/sparc64/lib.c
===================================================================
--- trunk/openbios-devel/arch/sparc64/lib.c 2009-07-31 11:13:16 UTC (rev 515)
+++ trunk/openbios-devel/arch/sparc64/lib.c 2009-07-31 11:15:30 UTC (rev 516)
@@ -14,6 +14,8 @@
#include "sys_info.h"
#include "boot.h"
+#include "ofmem_sparc64.h"
+
/* Format a string and print it on the screen, just like the libc
* function printf.
*/
@@ -80,6 +82,10 @@
{
}
+void ofmem_walk_boot_map(translation_entry_cb cb)
+{
+}
+
static int
spitfire_translate(unsigned long virt, unsigned long *p_phys,
unsigned long *p_data, unsigned long *p_size)
@@ -212,7 +218,8 @@
}
static void
-map_pages(unsigned long virt, unsigned long size, unsigned long phys)
+map_pages(unsigned long virt, unsigned long size, unsigned long phys,
+ unsigned long mode)
{
unsigned long tte_data, currsize;
@@ -238,7 +245,9 @@
currsize = PAGE_SIZE_8K;
tte_data = 0;
}
- tte_data |= phys | 0x8000000000000036ULL;
+
+ tte_data |= phys | mode | SPITFIRE_TTE_VALID;
+
dtlb_load2(virt, tte_data);
itlb_load2(virt, tte_data);
size -= currsize;
@@ -247,6 +256,11 @@
}
}
+void ofmem_map_pages(ucell phys, ucell virt, ucell size, ucell mode)
+{
+ return map_pages(phys, virt, size, mode);
+}
+
/*
3.6.5 map
( phys.lo ... phys.hi virt size mode -- )
@@ -262,7 +276,7 @@
phys = POP();
phys <<= 32;
phys |= POP();
- map_pages(virt, size, phys);
+ map_pages(virt, size, phys, mode);
}
static void
@@ -299,6 +313,11 @@
}
}
+void ofmem_unmap_pages(ucell virt, ucell size)
+{
+ unmap_pages(virt, size);
+}
+
/*
3.6.5 unmap
( virt size -- )
Added: trunk/openbios-devel/arch/sparc64/ofmem_sparc64.c
===================================================================
--- trunk/openbios-devel/arch/sparc64/ofmem_sparc64.c (rev 0)
+++ trunk/openbios-devel/arch/sparc64/ofmem_sparc64.c 2009-07-31 11:15:30 UTC (rev 516)
@@ -0,0 +1,664 @@
+/*
+ * <ofmem_sparc64.c>
+ *
+ * OF Memory manager
+ *
+ * Copyright (C) 1999-2004 Samuel Rydh (samuel(a)ibrium.se)
+ * Copyright (C) 2004 Stefan Reinauer
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation
+ *
+ */
+
+#include "openbios/config.h"
+#include "openbios/bindings.h"
+#include "libc/string.h"
+#include "ofmem_sparc64.h"
+#include "spitfire.h"
+
+static inline uint64_t ALIGN_SIZE(uint64_t x, uint64_t a)
+{
+ return (x + a - 1) & ~(a-1);
+}
+
+#define OF_MALLOC_BASE ((char*)OFMEM + ALIGN_SIZE(sizeof(ofmem_t), 8))
+
+#define MEMSIZE ((128 + 256 + 512) * 1024)
+static union {
+ char memory[MEMSIZE];
+ ofmem_t ofmem;
+} s_ofmem_data;
+
+#define OFMEM (&s_ofmem_data.ofmem)
+#define TOP_OF_RAM (s_ofmem_data.memory + MEMSIZE)
+
+translation_t **g_ofmem_translations = &s_ofmem_data.ofmem.trans;
+
+ulong get_ram_size( void )
+{
+ ofmem_t *ofmem = OFMEM;
+ return ofmem->ramsize;
+}
+
+static phandle_t s_phandle_memory = 0;
+static phandle_t s_phandle_mmu = 0;
+
+static void ofmem_update_mmu_translations( void )
+{
+ ofmem_t *ofmem = OFMEM;
+ translation_t *t;
+ int ncells;
+ ucell *props;
+
+ if (s_phandle_mmu == 0)
+ return;
+
+ for( t = ofmem->trans, ncells = 0; t ; t=t->next, ncells++ ) {
+ }
+
+ props = malloc(ncells * sizeof(ucell) * 3);
+
+ if (props == NULL)
+ return;
+
+ for( t = ofmem->trans, ncells = 0 ; t ; t=t->next ) {
+ props[ncells++] = t->virt;
+ props[ncells++] = t->size;
+ props[ncells++] = t->mode;
+ }
+
+ set_property(s_phandle_mmu, "translations",
+ (char*)props, ncells * sizeof(props[0]));
+
+ free(props);
+}
+
+static void ofmem_update_memory_available( phandle_t ph, range_t *range,
+ u64 top_address )
+{
+ range_t *r;
+ int ncells;
+ ucell *props;
+
+ ucell start, size;
+
+ if (s_phandle_memory == 0)
+ return;
+
+ /* count phys_range list entries */
+ for( r = range, ncells = 0; r ; r=r->next, ncells++ ) {
+ }
+
+ /* inverse of phys_range list could take 2 more cells for the tail */
+ props = malloc((ncells+1) * sizeof(ucell) * 2);
+
+ if (props == NULL) {
+ /* out of memory! */
+ return;
+ }
+
+ start = 0;
+ ncells = 0;
+
+ for (r = range; r; r=r->next) {
+ if (r->start >= top_address) {
+ break;
+ }
+
+ size = r->start - start;
+ if (size) {
+ props[ncells++] = start;
+ props[ncells++] = size;
+ }
+ start = r->start + r->size;
+ }
+
+ /* tail */
+ if (start < top_address) {
+ props[ncells++] = start;
+ props[ncells++] = top_address - start;
+ }
+
+ set_property(ph, "available",
+ (char*)props, ncells * sizeof(props[0]));
+
+ free(props);
+}
+
+static void ofmem_update_translations( void )
+{
+ ofmem_t *ofmem = OFMEM;
+
+ ofmem_update_memory_available(s_phandle_memory,
+ ofmem->phys_range, ofmem->ramsize);
+ ofmem_update_memory_available(s_phandle_mmu,
+ ofmem->virt_range, -1ULL);
+ ofmem_update_mmu_translations();
+}
+
+/************************************************************************/
+/* OF private allocations */
+/************************************************************************/
+
+void* ofmem_malloc( size_t size )
+{
+ ofmem_t *ofmem = OFMEM;
+ alloc_desc_t *d, **pp;
+ char *ret;
+
+ if( !size )
+ return NULL;
+
+ if( !ofmem->next_malloc )
+ ofmem->next_malloc = (char*)OF_MALLOC_BASE;
+
+ /* assuming sizeof(alloc_desc_t) is multiple of 8 */
+ size = ALIGN_SIZE(size + sizeof(alloc_desc_t), 8);
+
+ /* look in the freelist */
+ for( pp=&ofmem->mfree; *pp && (**pp).size < size; pp = &(**pp).next ) {
+ }
+
+ /* waste at most 4K by taking an entry from the freelist */
+ if( *pp && (**pp).size < size + 0x1000 ) {
+ ret = (char*)*pp + sizeof(alloc_desc_t);
+ memset( ret, 0, (**pp).size - sizeof(alloc_desc_t) );
+ *pp = (**pp).next;
+ return ret;
+ }
+
+ if( ofmem->next_malloc + size >= TOP_OF_RAM ) {
+ printk("out of malloc memory (%x)!\n", size );
+ return NULL;
+ }
+
+ d = (alloc_desc_t*) ofmem->next_malloc;
+ ofmem->next_malloc += size;
+
+ d->next = NULL;
+ d->size = size;
+
+ ret = (char*)d + sizeof(alloc_desc_t);
+ memset( ret, 0, size - sizeof(alloc_desc_t) );
+
+ return ret;
+}
+
+void ofmem_free( void *ptr )
+{
+ ofmem_t *ofmem = OFMEM;
+ alloc_desc_t **pp, *d;
+
+ /* it is legal to free NULL pointers (size zero allocations) */
+ if( !ptr )
+ return;
+
+ d = (alloc_desc_t*)((char *)ptr - sizeof(alloc_desc_t));
+ d->next = ofmem->mfree;
+
+ /* insert in the (sorted) freelist */
+ for( pp=&ofmem->mfree; *pp && (**pp).size < d->size ; pp = &(**pp).next ) {
+ }
+
+ d->next = *pp;
+ *pp = d;
+}
+
+void* ofmem_realloc( void *ptr, size_t size )
+{
+ alloc_desc_t *d = (alloc_desc_t*)((char *)ptr - sizeof(alloc_desc_t));
+ char *p;
+
+ if( !ptr )
+ return malloc( size );
+ if( !size ) {
+ free( ptr );
+ return NULL;
+ }
+ p = malloc( size );
+ memcpy( p, ptr, MIN(d->size - sizeof(alloc_desc_t),size) );
+ free( ptr );
+ return p;
+}
+
+
+/************************************************************************/
+/* misc */
+/************************************************************************/
+
+static inline ucell def_memmode( ucell phys )
+{
+ /* Writable, cacheable */
+ /* not privileged and not locked */
+ return SPITFIRE_TTE_CP | SPITFIRE_TTE_CV | SPITFIRE_TTE_WRITABLE;
+}
+
+
+/************************************************************************/
+/* client interface */
+/************************************************************************/
+
+static int is_free( ucell ea, ucell size, range_t *r )
+{
+ if( size == 0 )
+ return 1;
+ for( ; r ; r=r->next ) {
+ if( r->start + r->size - 1 >= ea && r->start <= ea )
+ return 0;
+ if( r->start >= ea && r->start <= ea + size - 1 )
+ return 0;
+ }
+ return 1;
+}
+
+static void add_entry_( ucell ea, ucell size, range_t **r )
+{
+ range_t *nr;
+
+ for( ; *r && (**r).start < ea; r=&(**r).next ) {
+ }
+
+ nr = (range_t*)malloc( sizeof(range_t) );
+ nr->next = *r;
+ nr->start = ea;
+ nr->size = size;
+ *r = nr;
+}
+
+static int add_entry( ucell ea, ucell size, range_t **r )
+{
+ if( !is_free( ea, size, *r ) ) {
+ printk("add_entry: range not free!\n");
+ return -1;
+ }
+ add_entry_( ea, size, r );
+ return 0;
+}
+
+static ucell find_area( ucell align, ucell size, range_t *r,
+ ucell min, ucell max, int reverse )
+{
+ ucell base = min;
+ range_t *r2;
+
+ if( (align & (align-1)) ) {
+ printk("bad alignment " FMT_ucell "\n", align);
+ align = 0x1000;
+ }
+ if( !align )
+ align = 0x1000;
+
+ base = reverse ? max - size : min;
+ r2 = reverse ? NULL : r;
+
+ for( ;; ) {
+ if( !reverse ) {
+ base = (base + align - 1) & ~(align-1);
+ if( base < min )
+ base = min;
+ if( base + size - 1 >= max -1 )
+ break;
+ } else {
+ if( base > max - size )
+ base = max - size;
+ base -= base & (align-1);
+ }
+ if( is_free( base, size, r ) )
+ return base;
+
+ if( !reverse ) {
+ if( !r2 )
+ break;
+ base = r2->start + r2->size;
+ r2 = r2->next;
+ } else {
+ range_t *rp;
+
+ for( rp=r; rp && rp->next != r2 ; rp=rp->next ) {
+ }
+
+ r2 = rp;
+ if( !r2 )
+ break;
+ base = r2->start - size;
+ }
+ }
+ return (ucell)-1;
+}
+
+static ucell ofmem_claim_phys_( ucell phys, ucell size, ucell align,
+ ucell min, ucell max, int reverse )
+{
+ ofmem_t *ofmem = OFMEM;
+ if( !align ) {
+ if( !is_free( phys, size, ofmem->phys_range ) ) {
+ printk("Non-free physical memory claimed!\n");
+ return -1;
+ }
+ add_entry( phys, size, &ofmem->phys_range );
+ return phys;
+ }
+ phys = find_area( align, size, ofmem->phys_range, min, max, reverse );
+ if( phys == (ucell)-1 ) {
+ printk("ofmem->claim_phys - out of space\n");
+ return -1;
+ }
+ add_entry( phys, size, &ofmem->phys_range );
+
+ ofmem_update_translations();
+
+ return phys;
+}
+
+/* if align != 0, phys is ignored. Returns -1 on error */
+ucell ofmem_claim_phys( ucell phys, ucell size, ucell align )
+{
+ /* printk("+ ofmem_claim phys %08lx %lx %ld\n", phys, size, align ); */
+ return ofmem_claim_phys_( phys, size, align, 0, get_ram_size(), 0 );
+}
+
+static ucell ofmem_claim_virt_( ucell virt, ucell size, ucell align,
+ ucell min, ucell max, int reverse )
+{
+ ofmem_t *ofmem = OFMEM;
+ if( !align ) {
+ if( !is_free( virt, size, ofmem->virt_range ) ) {
+ printk("Non-free physical memory claimed!\n");
+ return -1;
+ }
+ add_entry( virt, size, &ofmem->virt_range );
+ return virt;
+ }
+
+ virt = find_area( align, size, ofmem->virt_range, min, max, reverse );
+ if( virt == -1UL ) {
+ printk("ofmem_claim_virt - out of space\n");
+ return -1UL;
+ }
+ add_entry( virt, size, &ofmem->virt_range );
+ return virt;
+}
+
+ucell ofmem_claim_virt( ucell virt, ucell size, ucell align )
+{
+ /* printk("+ ofmem_claim virt %08lx %lx %ld\n", virt, size, align ); */
+ return ofmem_claim_virt_( virt, size, align, get_ram_size(), (ucell)TOP_OF_RAM, 0 );
+}
+
+
+/* allocate both physical and virtual space and add a translation */
+ucell ofmem_claim( ucell addr, ucell size, ucell align )
+{
+ ofmem_t *ofmem = OFMEM;
+ ucell virt, phys;
+ ucell offs = addr & 0xfff;
+
+ /* printk("+ ofmem_claim %08lx %lx %ld\n", addr, size, align ); */
+ virt = phys = 0;
+ if( !align ) {
+ if( is_free(addr, size, ofmem->virt_range) &&
+ is_free(addr, size, ofmem->phys_range) ) {
+ ofmem_claim_phys_( addr, size, 0, 0, 0, 0 );
+ ofmem_claim_virt_( addr, size, 0, 0, 0, 0 );
+ virt = phys = addr;
+ } else {
+ /* printk("**** ofmem_claim failure ***!\n"); */
+ return -1;
+ }
+ } else {
+ if( align < 0x1000 )
+ align = 0x1000;
+ phys = ofmem_claim_phys_( addr, size, align, 0, get_ram_size(), 1 /* reverse */ );
+ virt = ofmem_claim_virt_( addr, size, align, 0, get_ram_size(), 1 /* reverse */ );
+ if( phys == (ucell)-1 || virt == (ucell)-1 ) {
+ printk("ofmem_claim failed\n");
+ return -1;
+ }
+ /* printk("...phys = %08lX, virt = %08lX, size = %08lX\n", phys, virt, size ); */
+ }
+
+ /* align */
+ if( phys & 0xfff ) {
+ size += (phys & 0xfff);
+ virt -= (phys & 0xfff);
+ phys &= ~0xfff;
+ }
+ if( size & 0xfff )
+ size = (size + 0xfff) & ~0xfff;
+
+ /* printk("...free memory found... phys: %08lX, virt: %08lX, size %lX\n", phys, virt, size ); */
+ ofmem_map( phys, virt, size, -1 );
+ return virt + offs;
+}
+
+
+/************************************************************************/
+/* keep track of ea -> phys translations */
+/************************************************************************/
+
+static void split_trans( ucell virt )
+{
+ ofmem_t *ofmem = OFMEM;
+ translation_t *t, *t2;
+
+ for( t=ofmem->trans; t; t=t->next ) {
+ if( virt > t->virt && virt < t->virt + t->size-1 ) {
+ t2 = (translation_t*)malloc( sizeof(translation_t) );
+ t2->virt = virt;
+ t2->size = t->size - (virt - t->virt);
+ t->size = virt - t->virt;
+ t2->phys = t->phys + t->size;
+ t2->mode = t->mode;
+ t2->next = t->next;
+ t->next = t2;
+ }
+ }
+}
+
+static int map_page_range( ucell phys, ucell virt, ucell size, ucell mode )
+{
+ ofmem_t *ofmem = OFMEM;
+ translation_t *t, **tt;
+
+ OFMEM_TRACE("map_page_range " FMT_ucellx
+ " -> " FMT_ucellx " " FMT_ucellx " mode " FMT_ucellx "\n",
+ virt, phys, size, mode );
+
+ split_trans( virt );
+ split_trans( virt + size );
+
+ /* detect remappings */
+ for( t=ofmem->trans; t; ) {
+ if( virt == t->virt || (virt < t->virt && virt + size > t->virt )) {
+ if( t->phys + virt - t->virt != phys ) {
+ OFMEM_TRACE("mapping altered virt=" FMT_ucellx ")\n", t->virt );
+ } else if( t->mode != mode ){
+ OFMEM_TRACE("mapping mode altered virt=" FMT_ucellx
+ " old mode=" FMT_ucellx " new mode=" FMT_ucellx "\n",
+ t->virt, t->mode, mode);
+ }
+
+ for( tt=&ofmem->trans; *tt != t ; tt=&(**tt).next ) {
+ }
+
+ *tt = t->next;
+
+ /* really unmap these pages */
+ ofmem_unmap_pages(t->virt, t->size);
+
+ free((char*)t);
+
+ t=ofmem->trans;
+ continue;
+ }
+ t=t->next;
+ }
+
+ /* add mapping */
+ for( tt=&ofmem->trans; *tt && (**tt).virt < virt ; tt=&(**tt).next ) {
+ }
+
+ t = (translation_t*)malloc( sizeof(translation_t) );
+ t->virt = virt;
+ t->phys = phys;
+ t->size = size;
+ t->mode = mode;
+ t->next = *tt;
+ *tt = t;
+
+ ofmem_update_translations();
+
+ return 0;
+}
+
+static int unmap_page_range( ucell virt, ucell size )
+{
+ ofmem_t *ofmem = OFMEM;
+ translation_t **plink;
+
+ /* make sure there is exactly one matching translation entry */
+
+ split_trans( virt );
+ split_trans( virt + size );
+
+ /* find and unlink entries in range */
+ plink = &ofmem->trans;
+
+ while (*plink && (*plink)->virt < virt+size) {
+ translation_t **plinkentry = plink;
+ translation_t *t = *plink;
+
+ /* move ahead */
+ plink = &t->next;
+
+ if (t->virt >= virt && t->virt + t->size <= virt+size) {
+
+ /* unlink entry */
+ *plinkentry = t->next;
+
+ printk("unmap_page_range found " FMT_ucellx
+ " -> " FMT_ucellx " " FMT_ucellx " mode " FMT_ucellx "\n",
+ t->virt, t->phys, t->size, t->mode );
+
+ // really map these pages
+ ofmem_unmap_pages(t->virt, t->size);
+
+ free((char*)t);
+ }
+ }
+
+ ofmem_update_translations();
+
+ return 0;
+}
+
+int ofmem_map( ucell phys, ucell virt, ucell size, ucell mode )
+{
+ /* printk("+ofmem_map: %08lX --> %08lX (size %08lX, mode 0x%02X)\n",
+ virt, phys, size, mode ); */
+
+ if( (phys & 0xfff) || (virt & 0xfff) || (size & 0xfff) ) {
+ /* printk("ofmem_map: Bad parameters (%08lX %08lX %08lX)\n",
+ phys, virt, size ); */
+ phys &= ~0xfff;
+ virt &= ~0xfff;
+ size = (size + 0xfff) & ~0xfff;
+ }
+
+ if (mode==-1) {
+ mode = def_memmode(phys);
+ }
+
+ // install translations
+ map_page_range(phys, virt, size, mode);
+
+ if (mode & SPITFIRE_TTE_LOCKED) {
+ // install locked tlb entries now
+ ofmem_map_pages(phys, virt, size, mode);
+ }
+
+ return 0;
+}
+
+int ofmem_unmap( ucell virt, ucell size )
+{
+ OFMEM_TRACE("ofmem_unmap " FMT_ucellx " " FMT_ucellx "\n",
+ virt, size );
+
+ if( (virt & 0xfff) || (size & 0xfff) ) {
+ /* printk("ofmem_unmap: Bad parameters (%08lX %08lX)\n",
+ virt, size ); */
+ virt &= ~0xfff;
+ size = (size + 0xfff) & ~0xfff;
+ }
+
+ /* remove translations and unmap pages */
+ unmap_page_range(virt, size);
+
+ return 0;
+}
+
+/* virtual -> physical. */
+ucell ofmem_translate( ucell virt, ucell *mode )
+{
+ ofmem_t *ofmem = OFMEM;
+ translation_t *t;
+
+ for( t=ofmem->trans; t && t->virt <= virt ; t=t->next ) {
+ ucell offs;
+ if( t->virt + t->size - 1 < virt )
+ continue;
+ offs = virt - t->virt;
+ *mode = t->mode;
+ return t->phys + offs;
+ }
+
+ /*printk("ofmem_translate: no translation defined (%08lx)\n", virt);*/
+ /*print_trans();*/
+ return -1UL;
+}
+
+/* release memory allocated by ofmem_claim */
+void ofmem_release( ucell virt, ucell size )
+{
+ printk("ofmem_release unimplemented (" FMT_ucellx ", " FMT_ucellx ")\n",
+ virt, size );
+}
+
+
+/************************************************************************/
+/* init / cleanup */
+/************************************************************************/
+
+extern uint64_t qemu_mem_size;
+
+static int remap_page_range( ucell phys, ucell virt, ucell size, ucell mode )
+{
+ map_page_range(phys, virt, size, mode);
+ if (!(mode & SPITFIRE_TTE_LOCKED)) {
+ OFMEM_TRACE("remap_page_range clearing translation " FMT_ucellx
+ " -> " FMT_ucellx " " FMT_ucellx " mode " FMT_ucellx "\n",
+ virt, phys, size, mode );
+ ofmem_unmap_pages(virt, size);
+ }
+ return 0;
+}
+
+void ofmem_init( void )
+{
+ memset(&s_ofmem_data, 0, sizeof(s_ofmem_data));
+ s_ofmem_data.ofmem.ramsize = qemu_mem_size;
+
+ /* inherit translations set up by entry.S */
+ ofmem_walk_boot_map(remap_page_range);
+}
+
+void ofmem_register( phandle_t ph_memory, phandle_t ph_mmu )
+{
+ s_phandle_memory = ph_memory;
+ s_phandle_mmu = ph_mmu;
+
+ ofmem_update_translations();
+}
Added: trunk/openbios-devel/arch/sparc64/ofmem_sparc64.h
===================================================================
--- trunk/openbios-devel/arch/sparc64/ofmem_sparc64.h (rev 0)
+++ trunk/openbios-devel/arch/sparc64/ofmem_sparc64.h 2009-07-31 11:15:30 UTC (rev 516)
@@ -0,0 +1,69 @@
+/*
+ * <ofmem_sparc64.h>
+ *
+ * OF Memory manager
+ *
+ * Copyright (C) 1999, 2002 Samuel Rydh (samuel(a)ibrium.se)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation
+ *
+ */
+
+#ifndef _H_OFMEM_SPARC64
+#define _H_OFMEM_SPARC64
+
+#include "ofmem.h"
+
+extern void* ofmem_malloc( size_t size );
+extern void ofmem_free( void *ptr );
+extern void* ofmem_realloc( void *ptr, size_t size );
+
+extern int ofmem_unmap(ucell virt, ucell size);
+
+ulong get_ram_size( void );
+ulong get_ram_top( void );
+ulong get_ram_bottom( void );
+extern void ofmem_register( phandle_t ph_memory, phandle_t ph_mmu );
+extern void ofmem_map_pages(ucell phys, ucell virt, ucell size, ucell mode);
+extern void ofmem_unmap_pages(ucell virt, ucell size);
+
+typedef int (*translation_entry_cb)(ucell phys, ucell virt,
+ ucell size, ucell mode);
+
+extern void ofmem_walk_boot_map(translation_entry_cb cb);
+
+typedef struct alloc_desc {
+ struct alloc_desc *next;
+ ucell size; /* size (including) this struct */
+} alloc_desc_t;
+
+typedef struct mem_range {
+ struct mem_range *next;
+ ucell start;
+ ucell size;
+} range_t;
+
+typedef struct trans {
+ struct trans *next;
+ ucell virt; /* chain is sorted by virt */
+ ucell size;
+ ucell phys;
+ ucell mode;
+} translation_t;
+
+typedef struct {
+ uint64_t ramsize;
+ char *next_malloc;
+ alloc_desc_t *mfree; /* list of free malloc blocks */
+
+ range_t *phys_range;
+ range_t *virt_range;
+
+ translation_t *trans; /* this is really a translation_t */
+} ofmem_t;
+
+extern translation_t **g_ofmem_translations;
+
+#endif /* _H_OFMEM_SPARC64 */
Modified: trunk/openbios-devel/arch/sparc64/spitfire.h
===================================================================
--- trunk/openbios-devel/arch/sparc64/spitfire.h 2009-07-31 11:13:16 UTC (rev 515)
+++ trunk/openbios-devel/arch/sparc64/spitfire.h 2009-07-31 11:15:30 UTC (rev 516)
@@ -35,6 +35,14 @@
#define SPITFIRE_HIGHEST_LOCKED_TLBENT (64 - 1)
+/* translation table entry bits */
+#define SPITFIRE_TTE_WRITABLE 0x02
+#define SPITFIRE_TTE_PRIVILEGED 0x04
+#define SPITFIRE_TTE_CV 0x10
+#define SPITFIRE_TTE_CP 0x20
+#define SPITFIRE_TTE_LOCKED 0x40
+#define SPITFIRE_TTE_VALID 0x8000000000000000ULL
+
#ifndef __ASSEMBLY__
enum ultra_tlb_layout {
