QEMU OpenBIOS booting?
by Steven Noonan
Hi folks,
I've been trying to use OpenBIOS with QEMU, and I've had trouble
getting it to boot any PowerPC-based OS discs (Linux, Mac OS X, etc).
OpenBIOS just doesn't seem to find anything bootable. If I try booting
QEMU with -nographic, I get this output (I get the same with a
self-built openbios-qemu.elf from the OpenBIOS SVN as well):
---- snip ----
>> =============================================================
>> OpenBIOS 1.0 [Apr 12 2009 00:55]
>> Configuration device id QEMU version 1 machine id 1
>> CPUs: 1
>> Memory: 128M
>> UUID: 00000000-0000-0000-0000-000000000000
>> CPU type PowerPC,970FX
Welcome to OpenBIOS v1.0 built on Apr 12 2009 00:55
>> ELF - yaboot_startup: Entering boot, no path
>> ELF - try_bootinfo: Trying hd:0,ppc\bootinfo.txt
>> ELF - try_bootinfo: Can't open hd:0,ppc\bootinfo.txt
>> ELF - try_path: Trying hd:2,\ofclient
>> ELF - try_path: Can't open hd:2,\ofclient
>> ELF - try_path: Trying hd:2,\yaboot conf=hd:2,\yaboot.conf
>> ELF - try_path: Can't open hd:2,\yaboot
>> *** Boot failure! No secondary bootloader specified ***
---- snip ----
Laurent Vivier suggested in this conversation in February
(http://lists.openbios.org/pipermail/openbios/2009-February/003476.html)
that there could be a bug in partition map decoding. Has such a bug
been confirmed? I was trying to find the bug myself (I am an
experienced C/C++ programmer), but the bug seems to be subtle, and my
lack of familiarity with the code base doesn't help much.
I've been trying to figure this out for 7 hours straight now... Any
advice or other help would be much appreciated!
- Steven
9 years, 6 months
- 13
- 55
[RFC] Make BootX from Mac OS X 10.4 work
by Alexander Graf
Using this patch stacked on Steven Noonan's I was able to make BootX from
Mac OS X 10.4 load XNU successfully in qemu-system-ppc.
Unfortunately, most of this patch is nothing but a mere hack to find out
what we really need to get this working.
Also I didn't manage to get anything but 10.4 running. Other versions broke
in the partition table interpretation.
I would not feel good taking the patch as is, because it would be better to
implement the correct Forth magic to make the real callbacks work. Here is
what I found to be broken:
- unselect-dev is missing
- local variables don't work ({ ... })
- I ran into an endless loop, getting isi and dsi faults on the same 2
addresses all the time
Also, Qemu's only usable Desktop PPC target is a G3 Beige which is only
supported up to 10.2.8 IIRC. So even getting the bootloader running for
10.4 didn't exactly buy me much.
Don't apply the patch as is!
It'd be great to see someone build on this!
---
arch/ppc/qemu/ofmem.c | 4 ++--
modules/client.c | 40 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 42 insertions(+), 2 deletions(-)
diff --git a/arch/ppc/qemu/ofmem.c b/arch/ppc/qemu/ofmem.c
index a1a8fb1..32642e2 100644
--- a/arch/ppc/qemu/ofmem.c
+++ b/arch/ppc/qemu/ofmem.c
@@ -716,8 +716,8 @@ hash_page_32( ulong ea, ulong phys, int mode )
/* out of slots, just evict one */
if( !found ) {
- i = next_grab_slot + 1;
- next_grab_slot = (next_grab_slot + 1) % 8;
+ i = next_grab_slot + 3;
+ next_grab_slot = (next_grab_slot + 3) % 8;
}
i--;
upte[i*2] = cmp;
diff --git a/modules/client.c b/modules/client.c
index a2e8405..a8c89ff 100644
--- a/modules/client.c
+++ b/modules/client.c
@@ -49,6 +49,46 @@ handle_calls( prom_args_t *pb )
pb->nargs, pb->nret);
#endif
+#if 1
+ if (!strcmp(pb->service, "interpret"))
+ {
+ char *ns;
+
+ ns = strstr((char*)pb->args[0], "{ ; dpth }");
+ if (ns) return 0;
+
+ ns = strstr((char*)pb->args[0], "dev /chosen ");
+ if (ns) memcpy(ns, " \" /chosen\"", 11);
+ }
+ else if (!strcmp(pb->service, "call-method"))
+ {
+ if (!strncmp((char*)pb->args[0], "slw_init_keymap", 15)) {
+
+ char *a = (char*)malloc(20);
+ memset(a, 0x00, 20);
+ pb->args[4] = (uint32_t)a;
+ pb->args[3] = 0;
+
+ return 0;
+ }
+ if (!strncmp((char*)pb->args[0], "slw_emit", strlen("slw_emit"))) {
+ PUSH( (char)pb->args[2] );
+ fword("emit");
+
+ return 0;
+ }
+ if (!strncmp((char*)pb->args[0], "slw_cr", strlen("slw_cr"))) {
+ PUSH( '\n' );
+ fword("emit");
+ return 0;
+ }
+ if (!strncmp((char*)pb->args[0], "slw_update_keymap", strlen("slw_update_keymap"))) return 0;
+ if (!strncmp((char*)pb->args[0], "slw_set_output_level", strlen("slw_set_output_level"))) return 0;
+ if (!strncmp((char*)pb->args[0], "slw_spin_init", strlen("slw_spin_init"))) return 0;
+ if (!strncmp((char*)pb->args[0], "slw_spin", strlen("slw_spin"))) return 0;
+ }
+#endif
+
for( i=pb->nargs-1; i>=0; i-- )
PUSH( pb->args[i] );
--
1.6.0.2
10 years, 3 months
- 4
- 8
[PATCH 0/5] sparc64: implement OF memory manager
by Igor Kovalenko
Hi!
This patch series implement OF memory manager.
I used arch/ppc/qemu/ofmem.c as a starting point,
future plans in ofmem area would be to migrate common
parts from working implementations (ppc and sparc64)
into shared module.
Since ofmem declarations are to be used by different
architectures it appears that using ucell type in
ofmem.h is appropriate. This required changes to
ppc/qemu code. Unfortunately mol, briq and pearpc
configurations does not build in my setup so I did not
touched those parts, and this change may be incomplete.
It seems useful to introduce CONFIG_OFMEM_OPTION to
conditionally trace ofmem operations, so this is
implemented as well. Also I introduce FMT_cell and other
macros to help formatting log messages easily.
Client interface handler now uses ofmem implementation
instead of walking hardware translation tables. Since setup
code in entry.S does install it's own translations ofmem
initialization routine simply copies entries from hardware.
Properties "available" and "translations" are then populated
as needed.
This implementation passes boot test with no visible changes
on screen for HelenOS-0.4.0-sparc64.iso
Linux boot does not improve with this patch due to conflicts
with memory mappings in low memory region. Also there is
an issue with lazy conditional codes evaluation by qemu.
If disrupting trap is taken before conditional branch is
executed then upon return from trap conditional codes are not
evaluated correctly. Visible effect is that with this patch
series silo is no longer gets into second stage, stopping at
SIL output. Patch for this issue is already posted
to qemu-devel mailing list.
Signed-off-by: igor.v.kovalenko(a)gmail.com
--
Kind regards,
Igor V. Kovalenko
10 years, 4 months
- 3
- 9
r517 - trunk/openbios-devel/arch/sparc64
by svn＠openbios.org
Author: blueswirl
Date: 2009-07-31 13:16:24 +0200 (Fri, 31 Jul 2009)
New Revision: 517
Modified:
trunk/openbios-devel/arch/sparc64/lib.c
trunk/openbios-devel/arch/sparc64/openbios.c
trunk/openbios-devel/arch/sparc64/tree.fs
trunk/openbios-devel/arch/sparc64/vectors.S
Log:
Switch sparc64 to ofmem (Igor Kovalenko)
Initialize ofmem at startup.
Switch malloc/realloc/free to use ofmem.
Implement runtime migration of startup mappings to ofmem.
Implement mmu miss handlers to install tlb entries based on ofmem
translations list.
Modified: trunk/openbios-devel/arch/sparc64/lib.c
===================================================================
--- trunk/openbios-devel/arch/sparc64/lib.c 2009-07-31 11:15:30 UTC (rev 516)
+++ trunk/openbios-devel/arch/sparc64/lib.c 2009-07-31 11:16:24 UTC (rev 517)
@@ -34,32 +34,19 @@
return i;
}
-#define MEMSIZE ((128 + 256 + 512) * 1024)
-static char memory[MEMSIZE];
-static void *memptr=memory;
-static int memsize=MEMSIZE;
-
-
void *malloc(int size)
{
- void *ret=(void *)0;
+ return ofmem_malloc(size);
+}
- if( !size )
- return NULL;
-
- size = (size + 7) & ~7;
-
- if(memsize>=size) {
- memsize-=size;
- ret=memptr;
- memptr = (void *)((unsigned long)memptr + size);
- }
- return ret;
+void* realloc( void *ptr, size_t size )
+{
+ return ofmem_realloc(ptr, size);
}
void free(void *ptr)
{
- /* Nothing yet */
+ ofmem_free(ptr);
}
#define PAGE_SIZE_4M (4 * 1024 * 1024)
@@ -84,50 +71,44 @@
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)
-{
- unsigned long phys, tag, data, mask, size;
+ unsigned long phys, virt, size, mode, data, mask;
unsigned int i;
for (i = 0; i < 64; i++) {
data = spitfire_get_dtlb_data(i);
- if (data & 0x8000000000000000ULL) { // Valid entry?
+ if (data & SPITFIRE_TTE_VALID) {
switch ((data >> 61) & 3) {
default:
- case 0x0: // 8k
+ case 0x0: /* 8k */
mask = 0xffffffffffffe000ULL;
size = PAGE_SIZE_8K;
break;
- case 0x1: // 64k
+ case 0x1: /* 64k */
mask = 0xffffffffffff0000ULL;
size = PAGE_SIZE_64K;
break;
- case 0x2: // 512k
+ case 0x2: /* 512k */
mask = 0xfffffffffff80000ULL;
size = PAGE_SIZE_512K;
break;
- case 0x3: // 4M
+ case 0x3: /* 4M */
mask = 0xffffffffffc00000ULL;
size = PAGE_SIZE_4M;
break;
}
- tag = spitfire_get_dtlb_tag(i);
- if ((virt & mask) == (tag & mask)) {
- phys = data & mask & 0x000001fffffff000ULL;
- phys |= virt & ~mask;
- *p_phys = phys;
- *p_data = data & 0xfff;
- *p_size = size;
- return -1;
- }
+
+ virt = spitfire_get_dtlb_tag(i);
+ virt &= mask;
+
+ /* extract 41bit physical address */
+ phys = data & 0x000001fffffff000ULL;
+ phys &= mask;
+
+ mode = data & 0xfff;
+
+ cb(phys, virt, size, mode);
}
}
-
- return 0;
}
/*
@@ -137,18 +118,21 @@
static void
mmu_translate(void)
{
- unsigned long virt, phys, data, size;
+ ucell virt, phys, mode;
virt = POP();
- if (spitfire_translate(virt, &phys, &data, &size)) {
- PUSH(phys & 0xffffffff);
- PUSH(phys >> 32);
- PUSH(data);
- PUSH(-1);
- return;
+ phys = ofmem_translate(virt, &mode);
+
+ if (phys != -1UL) {
+ PUSH(phys & 0xffffffff);
+ PUSH(phys >> 32);
+ PUSH(mode);
+ PUSH(-1);
}
- PUSH(0);
+ else {
+ PUSH(0);
+ }
}
static void
@@ -218,13 +202,15 @@
}
static void
-map_pages(unsigned long virt, unsigned long size, unsigned long phys,
- unsigned long mode)
+map_pages(unsigned long phys, unsigned long virt,
+ unsigned long size, unsigned long mode)
{
- unsigned long tte_data, currsize;
+ unsigned long tte_data, currsize;
- size = (size + PAGE_MASK_8K) & ~PAGE_MASK_8K;
- while (size >= PAGE_SIZE_8K) {
+ /* aligned to 8k page */
+ size = (size + PAGE_MASK_8K) & ~PAGE_MASK_8K;
+
+ while (size > 0) {
currsize = size;
if (currsize >= PAGE_SIZE_4M &&
(virt & PAGE_MASK_4M) == 0 &&
@@ -248,8 +234,9 @@
tte_data |= phys | mode | SPITFIRE_TTE_VALID;
- dtlb_load2(virt, tte_data);
itlb_load2(virt, tte_data);
+ dtlb_load2(virt, tte_data);
+
size -= currsize;
phys += currsize;
virt += currsize;
@@ -268,7 +255,7 @@
static void
mmu_map(void)
{
- unsigned long virt, size, mode, phys;
+ ucell virt, size, mode, phys;
mode = POP();
size = POP();
@@ -276,7 +263,8 @@
phys = POP();
phys <<= 32;
phys |= POP();
- map_pages(virt, size, phys, mode);
+
+ ofmem_map(phys, virt, size, mode);
}
static void
@@ -294,22 +282,19 @@
}
static void
-unmap_pages(unsigned long virt, unsigned long size)
+unmap_pages(ucell virt, ucell size)
{
- unsigned long phys, data;
+ ucell va;
- unsigned long currsize;
+ /* align address to 8k */
+ virt &= ~PAGE_MASK_8K;
- // align size
+ /* align size to 8k */
size = (size + PAGE_MASK_8K) & ~PAGE_MASK_8K;
- while (spitfire_translate(virt, &phys, &data, &currsize)) {
-
- itlb_demap(virt & ~0x1fffULL);
- dtlb_demap(virt & ~0x1fffULL);
-
- size -= currsize;
- virt += currsize;
+ for (va = virt; va < virt + size; va += PAGE_SIZE_8K) {
+ itlb_demap(va);
+ dtlb_demap(va);
}
}
@@ -325,11 +310,11 @@
static void
mmu_unmap(void)
{
- unsigned long virt, size;
+ ucell virt, size;
size = POP();
virt = POP();
- unmap_pages(virt, size);
+ ofmem_unmap(virt, size);
}
/*
@@ -339,13 +324,23 @@
static void
mmu_claim(void)
{
- unsigned long virt, size, align;
+ ucell virt=-1UL, size, align;
align = POP();
size = POP();
- virt = POP();
- printk("claim virt = %lx size = %lx align = %lx\n", virt, size, align);
- PUSH(virt); // XXX
+ if (!align) {
+ virt = POP();
+ }
+
+ printk("claim virt=" FMT_ucellx " size=" FMT_ucellx " align=" FMT_ucellx
+ "\n",
+ virt, size, align);
+
+ virt = ofmem_claim_virt(virt, size, align);
+
+ printk("claimed virt=" FMT_ucellx "\n", virt);
+
+ PUSH(virt);
}
/*
@@ -355,14 +350,63 @@
static void
mmu_release(void)
{
- unsigned long virt, size;
+ ucell virt, size;
size = POP();
virt = POP();
- printk("release virt = %lx size = %lx\n", virt, size);
- // XXX
+ printk("release virt=" FMT_ucellx " size=" FMT_ucellx "\n", virt, size);
+
+ ofmem_release(virt, size);
}
+/* ( phys size align --- base ) */
+static void
+mem_claim( void )
+{
+ ucell phys=-1UL, size, align;
+
+ align = POP();
+ size = POP();
+ if (!align) {
+ phys = POP();
+ phys <<= 32;
+ phys |= POP();
+ }
+
+ printk("mem_claim phys=" FMT_ucellx " size=" FMT_ucellx
+ " align=" FMT_ucellx "\n",
+ phys, size, align);
+
+ phys = ofmem_claim_phys(phys, size, align);
+
+ printk("ofmem_claim_phys result phys=" FMT_ucellx "\n", phys);
+
+ ofmem_map(phys, phys, size, -1);
+
+ PUSH(phys >> 32);
+ PUSH(phys & 0xffffffffUL);
+}
+
+/* ( phys size --- ) */
+static void
+mem_release( void )
+{
+ ucell phys, size;
+
+ size = POP();
+ phys = POP();
+ printk("release virt=" FMT_ucellx " size=" FMT_ucellx "\n", phys, size);
+
+ ofmem_release(phys, size);
+}
+
+DECLARE_NODE(memory, INSTALL_OPEN, 0, "/memory");
+
+NODE_METHODS( memory ) = {
+ { "claim", mem_claim },
+ { "release", mem_release },
+};
+
DECLARE_UNNAMED_NODE(mmu, INSTALL_OPEN, 0);
NODE_METHODS(mmu) = {
@@ -381,7 +425,10 @@
{
char nodebuff[256];
- // MMU node
+ /* memory node */
+ REGISTER_NODE_METHODS(memory, "/memory");
+
+ /* MMU node */
snprintf(nodebuff, sizeof(nodebuff), "/%s", cpuname);
push_str(nodebuff);
fword("find-device");
@@ -397,6 +444,8 @@
REGISTER_NODE_METHODS(mmu, nodebuff);
+ ofmem_register(find_dev("/memory"), find_dev("/virtual-memory"));
+
push_str("/chosen");
fword("find-device");
@@ -409,7 +458,7 @@
push_str("/memory");
fword("find-device");
- // All memory: 0 to RAM_size
+ /* All memory: 0 to RAM_size */
PUSH(0);
fword("encode-int");
PUSH(0);
@@ -424,108 +473,6 @@
push_str("reg");
fword("property");
- // Available memory: 0 to va2pa(_start)
- PUSH(0);
- fword("encode-int");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH((va2pa((unsigned long)&_data) - 8192) >> 32);
- fword("encode-int");
- fword("encode+");
- PUSH((va2pa((unsigned long)&_data) - 8192) & 0xffffffff);
- fword("encode-int");
- fword("encode+");
- push_str("available");
- fword("property");
-
- // XXX
- // Translations
- push_str("/virtual-memory");
- fword("find-device");
-
- // 0 to 16M: 1:1
- PUSH(0);
- fword("encode-int");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH(16 * 1024 * 1024);
- fword("encode-int");
- fword("encode+");
- PUSH(0x80000000);
- fword("encode-int");
- fword("encode+");
- PUSH(0x00000036);
- fword("encode-int");
- fword("encode+");
-
- // _start to _data: ROM used
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH((unsigned long)&_start);
- fword("encode-int");
- fword("encode+");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH((unsigned long)&_data - (unsigned long)&_start);
- fword("encode-int");
- fword("encode+");
- PUSH(0x800001ff);
- fword("encode-int");
- fword("encode+");
- PUSH(0xf0000074);
- fword("encode-int");
- fword("encode+");
-
- // _data to _end: end of RAM
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH((unsigned long)&_data);
- fword("encode-int");
- fword("encode+");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH((unsigned long)&_data - (unsigned long)&_start);
- fword("encode-int");
- fword("encode+");
- PUSH(((va2pa((unsigned long)&_data) - 8192) >> 32) | 0x80000000);
- fword("encode-int");
- fword("encode+");
- PUSH(((va2pa((unsigned long)&_data) - 8192) & 0xffffffff) | 0x36);
- fword("encode-int");
- fword("encode+");
-
- // VGA buffer (128k): 1:1
- PUSH(0x1ff);
- fword("encode-int");
- fword("encode+");
- PUSH(0x004a0000);
- fword("encode-int");
- fword("encode+");
- PUSH(0);
- fword("encode-int");
- fword("encode+");
- PUSH(128 * 1024);
- fword("encode-int");
- fword("encode+");
- PUSH(0x800001ff);
- fword("encode-int");
- fword("encode+");
- PUSH(0x004a0076);
- fword("encode-int");
- fword("encode+");
-
- push_str("translations");
- fword("property");
-
push_str("/openprom/client-services");
fword("find-device");
bind_func("claim", mmu_claim);
Modified: trunk/openbios-devel/arch/sparc64/openbios.c
===================================================================
--- trunk/openbios-devel/arch/sparc64/openbios.c 2009-07-31 11:15:30 UTC (rev 516)
+++ trunk/openbios-devel/arch/sparc64/openbios.c 2009-07-31 11:16:24 UTC (rev 517)
@@ -20,6 +20,7 @@
#define NO_QEMU_PROTOS
#include "openbios/fw_cfg.h"
#include "video_subr.h"
+#include "ofmem.h"
#define UUID_FMT "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
@@ -495,6 +496,8 @@
printk("OpenBIOS for Sparc64\n");
#endif
+ ofmem_init();
+
collect_sys_info(&sys_info);
dict = malloc(DICTIONARY_SIZE);
Modified: trunk/openbios-devel/arch/sparc64/tree.fs
===================================================================
--- trunk/openbios-devel/arch/sparc64/tree.fs 2009-07-31 11:15:30 UTC (rev 516)
+++ trunk/openbios-devel/arch/sparc64/tree.fs 2009-07-31 11:16:24 UTC (rev 517)
@@ -27,11 +27,12 @@
new-device
" memory" device-name
+ " memory" device-type
external
: open true ;
: close ;
\ claim ( phys size align -- base )
- : claim 2drop ;
+\ : claim 2drop ;
\ release ( phys size -- )
finish-device
@@ -41,7 +42,7 @@
: open true ;
: close ;
\ claim ( phys size align -- base )
- : claim 2drop ;
+\ : claim 2drop ;
\ release ( phys size -- )
finish-device
Modified: trunk/openbios-devel/arch/sparc64/vectors.S
===================================================================
--- trunk/openbios-devel/arch/sparc64/vectors.S 2009-07-31 11:15:30 UTC (rev 516)
+++ trunk/openbios-devel/arch/sparc64/vectors.S 2009-07-31 11:16:24 UTC (rev 517)
@@ -101,6 +101,8 @@
ba bug; mov lvl, %g1; nop; nop; nop; nop; nop; nop;
#define BTRAPTL1(lvl) BTRAP(lvl)
#define BTRAPS(x) BTRAP(x) BTRAP(x+1) BTRAP(x+2) BTRAP(x+3) BTRAP(x+4) BTRAP(x+5) BTRAP(x+6) BTRAP(x+7)
+#define BTRAPS4(x) BTRAP(x) BTRAP(x+1) BTRAP(x+2) BTRAP(x+3)
+#define TRAP_HANDLER(routine) ba routine; nop; nop; nop; nop; nop; nop; nop;
#define STACK_BIAS 2047
.globl sparc64_ttable_tl0, sparc64_ttable_tl1
@@ -131,7 +133,16 @@
BTRAPS(0x40) BTRAPS(0x48)
#endif
BTRAPS(0x50) BTRAPS(0x58)
- BTRAPS(0x60) BTRAPS(0x68)
+ BTRAPS4(0x60)
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x64 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x65 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x66 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x67 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x68 : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x69 : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x6A : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x6B : data_access_MMU_miss
+ BTRAPS4(0x6C) ! data_access_protection
BTRAPS(0x70) BTRAPS(0x78)
tl0_s0n: SPILL_WINDOW
tl0_s1n: SPILL_WINDOW
@@ -206,7 +217,16 @@
BTRAPS(0x40) BTRAPS(0x48)
#endif
BTRAPS(0x50) BTRAPS(0x58)
- BTRAPS(0x60) BTRAPS(0x68)
+ BTRAPS4(0x60)
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x64 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x65 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x66 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_IMMU_tlb) ! 0x67 : instruction_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x68 : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x69 : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x6A : data_access_MMU_miss
+ TRAP_HANDLER(reload_DMMU_tlb) ! 0x6B : data_access_MMU_miss
+ BTRAPS4(0x6C) ! data_access_protection
BTRAPS(0x70) BTRAPS(0x78)
tl1_s0n: SPILL_WINDOW
tl1_s1n: SPILL_WINDOW
@@ -300,6 +320,86 @@
restored
retry
+ .globl reload_DMMU_tlb, reload_IMMU_tlb
+
+reload_DMMU_tlb:
+ mov 6 << 3, %g2 ! va = fault virtual address
+ ldxa [%g2] ASI_DMMU, %g1 ! from tag access register
+
+ srlx %g1, 13, %g1 ! %g1 = va rounded to 8k page
+ sllx %g1, 13, %g1 !
+
+ setx g_ofmem_translations, %g7, %g3
+ ldx [%g3], %g3 ! translation_t* t = *g_ofmem_translations
+dmmu_next_trans:
+ ldx [%g3], %g3
+ brz %g3, bug ! NULL pointer
+ nop
+ ldx [%g3+0x08], %g4 ! t->virt
+ sub %g1, %g4, %g7 ! %g7 offset = va - t->virt
+ brlz %g7, dmmu_next_trans ! va < t->virt ?
+ nop
+ ldx [%g3+0x10], %g4 ! t->size
+ sub %g7, %g4, %g4 ! va >= t->virt - t->size ?
+ brgez %g4, dmmu_next_trans
+ nop
+
+ ! install 8k tlb entry
+
+ ldx [%g3+0x18], %g4 ! t->phys
+ add %g4, %g7, %g4 ! %g4 page physical address = t->phys + offset
+ ldx [%g3+0x20], %g5 ! t->mode
+
+ set 0x80000000, %g2 ! valid tte, 8k size
+ sllx %g2, 32, %g2
+ or %g2, %g5, %g2 ! mix in translation mode
+ or %g2, %g4, %g3 ! mix in phys addr mode
+
+ mov 6 << 3, %g2 ! page virtual address
+ stxa %g1, [%g2] ASI_DMMU !
+ stxa %g3, [%g0] ASI_DTLB_DATA_IN
+
+ retry
+
+reload_IMMU_tlb:
+ mov 6 << 3, %g2 ! va = fault virtual address
+ ldxa [%g2] ASI_IMMU, %g1 ! from tag access register
+
+ srlx %g1, 13, %g1 ! %g1 = va rounded to 8k page
+ sllx %g1, 13, %g1 !
+
+ setx g_ofmem_translations, %g7, %g3
+ ldx [%g3], %g3 ! translation_t* t = *g_ofmem_translations
+immu_next_trans:
+ ldx [%g3], %g3
+ brz %g3, bug ! NULL pointer
+ nop
+ ldx [%g3+0x08], %g4 ! t->virt
+ sub %g1, %g4, %g7 ! %g7 offset = va - t->virt
+ brlz %g7, immu_next_trans ! va < t->virt ?
+ nop
+ ldx [%g3+0x10], %g4 ! t->size
+ sub %g7, %g4, %g4 ! va >= t->virt - t->size ?
+ brgez %g4, immu_next_trans
+ nop
+
+ ! install 8k tlb entry
+
+ ldx [%g3+0x18], %g4 ! t->phys
+ add %g4, %g7, %g4 ! %g4 page physical address = t->phys + offset
+ ldx [%g3+0x20], %g5 ! t->mode
+
+ set 0x80000000, %g2 ! valid tte, 8k size
+ sllx %g2, 32, %g2
+ or %g2, %g5, %g2 ! mix in translation mode
+ or %g2, %g4, %g3 ! mix in phys addr mode
+
+ mov 6 << 3, %g2 ! page virtual address
+ stxa %g1, [%g2] ASI_IMMU !
+ stxa %g3, [%g0] ASI_ITLB_DATA_IN
+
+ retry
+
__divide_error:
bug:
/* Dump the exception and its context */
10 years, 4 months
- 1
- 0
r516 - trunk/openbios-devel/arch/sparc64
by svn＠openbios.org
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 {
10 years, 4 months
- 1
- 0
r515 - trunk/openbios-devel/include/sparc64
by svn＠openbios.org
Author: blueswirl
Date: 2009-07-31 13:13:16 +0200 (Fri, 31 Jul 2009)
New Revision: 515
Modified:
trunk/openbios-devel/include/sparc64/types.h
Log:
Sparc64 cell based types (Igor Kovalenko)
Use int64_t for cell and uint64_t for ucell.
Define printf-style format macros to ease writing cell-type-independend
log traces.
Modified: trunk/openbios-devel/include/sparc64/types.h
===================================================================
--- trunk/openbios-devel/include/sparc64/types.h 2009-07-31 11:12:18 UTC (rev 514)
+++ trunk/openbios-devel/include/sparc64/types.h 2009-07-31 11:13:16 UTC (rev 515)
@@ -29,9 +29,13 @@
#include "autoconf.h"
/* cell based types */
-typedef long long cell;
-typedef unsigned long long ucell;
+typedef int64_t cell;
+typedef uint64_t ucell;
+#define FMT_cell "%lld"
+#define FMT_ucell "%llu"
+#define FMT_ucellx "%016llx"
+
#ifdef NEED_FAKE_INT128_T
typedef struct {
uint64_t hi;
10 years, 4 months
- 1
- 0
r514 - in trunk/openbios-devel: config/examples include
by svn＠openbios.org
Author: blueswirl
Date: 2009-07-31 13:12:18 +0200 (Fri, 31 Jul 2009)
New Revision: 514
Modified:
trunk/openbios-devel/config/examples/cross-ppc_config.xml
trunk/openbios-devel/config/examples/cross-sparc32_config.xml
trunk/openbios-devel/config/examples/cross-sparc64_config.xml
trunk/openbios-devel/config/examples/ppc_config.xml
trunk/openbios-devel/config/examples/sparc32_config.xml
trunk/openbios-devel/config/examples/sparc64_config.xml
trunk/openbios-devel/include/ofmem.h
Log:
Introduce CONFIG_DEBUG_OFMEM option (Igor Kovalenko)
Add CONFIG_DEBUG_OFMEM option to configurations which implement OF memory
manager.
Implement DEBUG_OFMEM macro to be used by debug traces in OF memory manager
code.
Modified: trunk/openbios-devel/config/examples/cross-ppc_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/cross-ppc_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/cross-ppc_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -27,6 +27,7 @@
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="115200"/>
<option name="CONFIG_DEBUG_CONSOLE_VGA" type="boolean" value="true"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/config/examples/cross-sparc32_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/cross-sparc32_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/cross-sparc32_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -33,6 +33,7 @@
<option name="CONFIG_DEBUG_IOMMU" type="boolean" value="false"/>
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="9600"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/config/examples/cross-sparc64_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/cross-sparc64_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/cross-sparc64_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -30,6 +30,7 @@
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="115200"/>
<option name="CONFIG_DEBUG_CONSOLE_VGA" type="boolean" value="true"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/config/examples/ppc_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/ppc_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/ppc_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -27,6 +27,7 @@
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="115200"/>
<option name="CONFIG_DEBUG_CONSOLE_VGA" type="boolean" value="true"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/config/examples/sparc32_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/sparc32_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/sparc32_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -33,6 +33,7 @@
<option name="CONFIG_DEBUG_IOMMU" type="boolean" value="false"/>
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="9600"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/config/examples/sparc64_config.xml
===================================================================
--- trunk/openbios-devel/config/examples/sparc64_config.xml 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/config/examples/sparc64_config.xml 2009-07-31 11:12:18 UTC (rev 514)
@@ -30,6 +30,7 @@
<option name="CONFIG_SERIAL_PORT" type="integer" value="0"/>
<option name="CONFIG_SERIAL_SPEED" type="integer" value="115200"/>
<option name="CONFIG_DEBUG_CONSOLE_VGA" type="boolean" value="true"/>
+ <option name="CONFIG_DEBUG_OFMEM" type="boolean" value="false"/>
<!-- Module Configuration -->
Modified: trunk/openbios-devel/include/ofmem.h
===================================================================
--- trunk/openbios-devel/include/ofmem.h 2009-07-31 11:10:38 UTC (rev 513)
+++ trunk/openbios-devel/include/ofmem.h 2009-07-31 11:12:18 UTC (rev 514)
@@ -58,4 +58,10 @@
#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
#endif
+#if defined(CONFIG_DEBUG_OFMEM)
+# define OFMEM_TRACE(fmt, ...) do { printk("OFMEM: " fmt, ## __VA_ARGS__); } while (0)
+#else
+# define OFMEM_TRACE(fmt, ...) do {} while(0)
+#endif
+
#endif /* _H_OFMEM */
10 years, 4 months
- 1
- 0
r513 - in trunk/openbios-devel: arch/ppc/qemu include
by svn＠openbios.org
Author: blueswirl
Date: 2009-07-31 13:10:38 +0200 (Fri, 31 Jul 2009)
New Revision: 513
Modified:
trunk/openbios-devel/arch/ppc/qemu/methods.c
trunk/openbios-devel/arch/ppc/qemu/ofmem.c
trunk/openbios-devel/include/ofmem.h
Log:
Use ucell type to pass ofmem arguments (Igor Kovalenko)
Modified: trunk/openbios-devel/arch/ppc/qemu/methods.c
===================================================================
--- trunk/openbios-devel/arch/ppc/qemu/methods.c 2009-07-20 06:52:23 UTC (rev 512)
+++ trunk/openbios-devel/arch/ppc/qemu/methods.c 2009-07-31 11:10:38 UTC (rev 513)
@@ -241,9 +241,9 @@
static void
mmu_translate( void )
{
- int mode;
- int virt = POP();
- int phys = ofmem_translate( virt, &mode );
+ ucell mode;
+ ucell virt = POP();
+ ucell phys = ofmem_translate( virt, &mode );
if( phys == -1 ) {
PUSH( 0 );
Modified: trunk/openbios-devel/arch/ppc/qemu/ofmem.c
===================================================================
--- trunk/openbios-devel/arch/ppc/qemu/ofmem.c 2009-07-20 06:52:23 UTC (rev 512)
+++ trunk/openbios-devel/arch/ppc/qemu/ofmem.c 2009-07-31 11:10:38 UTC (rev 513)
@@ -37,21 +37,21 @@
typedef struct alloc_desc {
struct alloc_desc *next;
- int size; /* size (including) this struct */
+ ucell size; /* size (including) this struct */
} alloc_desc_t;
typedef struct mem_range {
struct mem_range *next;
- ulong start;
- ulong size;
+ ucell start;
+ ucell size;
} range_t;
typedef struct trans {
struct trans *next;
- ulong virt; /* chain is sorted by virt */
- ulong size;
- ulong phys;
- int mode;
+ ucell virt; /* chain is sorted by virt */
+ ucell size;
+ ucell phys;
+ ucell mode;
} translation_t;
typedef struct {
@@ -236,8 +236,8 @@
/************************************************************************/
extern char _start[], _end[];
-static inline int
-def_memmode( ulong phys )
+static inline ucell
+def_memmode( ucell phys )
{
/* XXX: Guard bit not set as it should! */
if( phys < IO_BASE )
@@ -251,7 +251,7 @@
/************************************************************************/
static int
-is_free( ulong ea, ulong size, range_t *r )
+is_free( ucell ea, ucell size, range_t *r )
{
if( size == 0 )
return 1;
@@ -265,7 +265,7 @@
}
static void
-add_entry_( ulong ea, ulong size, range_t **r )
+add_entry_( ucell ea, ucell size, range_t **r )
{
range_t *nr;
@@ -279,7 +279,7 @@
}
static int
-add_entry( ulong ea, ulong size, range_t **r )
+add_entry( ucell ea, ucell size, range_t **r )
{
if( !is_free( ea, size, *r ) ) {
printk("add_entry: range not free!\n");
@@ -310,20 +310,20 @@
}
static void
-fill_range( ulong ea, int size, range_t **rr )
+fill_range( ulong ea, ucell size, range_t **rr )
{
add_entry_( ea, size, rr );
join_ranges( rr );
}
-static ulong
-find_area( ulong align, ulong size, range_t *r, ulong min, ulong max, int reverse )
+static ucell
+find_area( ucell align, ucell size, range_t *r, ucell min, ucell max, int reverse )
{
- ulong base = min;
+ ucell base = min;
range_t *r2;
if( (align & (align-1)) ) {
- printk("bad alignment %ld\n", align);
+ printk("bad alignment %d\n", align);
align = 0x1000;
}
if( !align )
@@ -362,11 +362,11 @@
base = r2->start - size;
}
}
- return (ulong)-1;
+ return (ucell)-1;
}
-static ulong
-ofmem_claim_phys_( ulong phys, ulong size, ulong align, int min, int max, int reverse )
+static ucell
+ofmem_claim_phys_( ucell phys, ucell size, ucell align, ucell min, ucell max, int reverse )
{
ofmem_t *ofmem = OFMEM;
if( !align ) {
@@ -387,15 +387,15 @@
}
/* if align != 0, phys is ignored. Returns -1 on error */
-ulong
-ofmem_claim_phys( ulong phys, ulong size, ulong align )
+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 ulong
-ofmem_claim_virt_( ulong virt, ulong size, ulong align, int min, int max, int reverse )
+static ucell
+ofmem_claim_virt_( ucell virt, ucell size, ucell align, ucell min, ucell max, int reverse )
{
ofmem_t *ofmem = OFMEM;
if( !align ) {
@@ -416,8 +416,8 @@
return virt;
}
-ulong
-ofmem_claim_virt( ulong virt, ulong size, ulong align )
+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() , IO_BASE, 0 );
@@ -425,12 +425,12 @@
/* allocate both physical and virtual space and add a translation */
-ulong
-ofmem_claim( ulong addr, ulong size, ulong align )
+ucell
+ofmem_claim( ucell addr, ucell size, ucell align )
{
ofmem_t *ofmem = OFMEM;
- ulong virt, phys;
- ulong offs = addr & 0xfff;
+ ucell virt, phys;
+ ucell offs = addr & 0xfff;
/* printk("+ ofmem_claim %08lx %lx %ld\n", addr, size, align ); */
virt = phys = 0;
@@ -496,7 +496,7 @@
}
static int
-map_page_range( ulong virt, ulong phys, ulong size, int mode )
+map_page_range( ucell virt, ucell phys, ucell size, ucell mode )
{
ofmem_t *ofmem = OFMEM;
translation_t *t, **tt;
@@ -508,7 +508,7 @@
for( t=ofmem->trans; t; ) {
if( virt == t->virt || (virt < t->virt && virt + size > t->virt )) {
if( t->phys + virt - t->virt != phys ) {
- printk("mapping altered (ea %08lx)\n", t->virt );
+ printk("mapping altered (ea %08x)\n", t->virt );
} else if( t->mode != mode ){
printk("mapping mode altered\n");
}
@@ -538,7 +538,7 @@
}
int
-ofmem_map( ulong phys, ulong virt, ulong size, int mode )
+ofmem_map( ucell phys, ucell virt, ucell size, ucell mode )
{
ofmem_t *ofmem = OFMEM;
/* printk("+ofmem_map: %08lX --> %08lX (size %08lX, mode 0x%02X)\n",
@@ -563,14 +563,14 @@
}
/* virtual -> physical. */
-ulong
-ofmem_translate( ulong virt, int *mode )
+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 ) {
- ulong offs;
+ ucell offs;
if( t->virt + t->size - 1 < virt )
continue;
offs = virt - t->virt;
@@ -585,7 +585,7 @@
/* release memory allocated by ofmem_claim */
void
-ofmem_release( ulong virt, ulong size )
+ofmem_release( ucell virt, ucell size )
{
/* printk("ofmem_release unimplemented (%08lx, %08lx)\n", virt, size ); */
}
@@ -595,10 +595,10 @@
/* page fault handler */
/************************************************************************/
-static ulong
-ea_to_phys( ulong ea, int *mode )
+static ucell
+ea_to_phys( ucell ea, ucell *mode )
{
- ulong phys;
+ ucell phys;
if (ea >= 0xfff00000UL) {
/* ROM into RAM */
@@ -621,7 +621,7 @@
}
static void
-hash_page_64( ulong ea, ulong phys, int mode )
+hash_page_64( ucell ea, ucell phys, ucell mode )
{
static int next_grab_slot=0;
uint64_t vsid_mask, page_mask, pgidx, hash;
@@ -687,7 +687,7 @@
}
static void
-hash_page_32( ulong ea, ulong phys, int mode )
+hash_page_32( ucell ea, ucell phys, ucell mode )
{
static int next_grab_slot=0;
ulong *upte, cmp, hash1;
@@ -734,7 +734,7 @@
return ((pvr >= 0x330000) && (pvr < 0x70330000));
}
-static void hash_page( ulong ea, ulong phys, int mode )
+static void hash_page( ulong ea, ulong phys, ucell mode )
{
if ( is_ppc64() )
hash_page_64(ea, phys, mode);
@@ -746,8 +746,8 @@
dsi_exception( void )
{
ulong dar, dsisr;
- int mode;
- ulong phys;
+ ucell mode;
+ ucell phys;
asm volatile("mfdar %0" : "=r" (dar) : );
asm volatile("mfdsisr %0" : "=r" (dsisr) : );
@@ -760,8 +760,8 @@
isi_exception( void )
{
ulong nip, srr1;
- int mode;
- ulong phys;
+ ucell mode;
+ ucell phys;
asm volatile("mfsrr0 %0" : "=r" (nip) : );
asm volatile("mfsrr1 %0" : "=r" (srr1) : );
Modified: trunk/openbios-devel/include/ofmem.h
===================================================================
--- trunk/openbios-devel/include/ofmem.h 2009-07-20 06:52:23 UTC (rev 512)
+++ trunk/openbios-devel/include/ofmem.h 2009-07-31 11:10:38 UTC (rev 513)
@@ -20,14 +20,14 @@
extern void ofmem_cleanup( void );
extern void ofmem_init( void );
-extern ulong ofmem_claim( ulong addr, ulong size, ulong align );
-extern ulong ofmem_claim_phys( ulong mphys, ulong size, ulong align );
-extern ulong ofmem_claim_virt( ulong mvirt, ulong size, ulong align );
+extern ucell ofmem_claim( ucell addr, ucell size, ucell align );
+extern ucell ofmem_claim_phys( ucell mphys, ucell size, ucell align );
+extern ucell ofmem_claim_virt( ucell mvirt, ucell size, ucell align );
-extern int ofmem_map( ulong phys, ulong virt, ulong size, int mode );
+extern int ofmem_map( ucell phys, ucell virt, ucell size, ucell mode );
-extern void ofmem_release( ulong virt, ulong size );
-extern ulong ofmem_translate( ulong virt, int *ret_mode );
+extern void ofmem_release( ucell virt, ucell size );
+extern ucell ofmem_translate( ucell virt, ucell *ret_mode );
#ifdef CONFIG_PPC
#define PAGE_SHIFT 12
10 years, 4 months
- 1
- 0
[PATCH 0/5] sparc64: implement OF memory manager
by Igor Kovalenko
Hi!
This patch series implements OF memory manager.
I used arch/ppc/qemu/ofmem.c as a starting point,
future plans in ofmem area would be to migrate common
parts from working implementations (ppc and sparc64)
into shared ofmem module.
I decided to switch ofmem.h declarations to use ucell
type while passing arguments so ofmem declarations
can be used by all architectures.
Client interface handler now uses ofmem implementation
instead of walking hardware translation tables. Since setup
code in entry.S does install it's own translations ofmem
initialization routine simply copies entries from hardware.
Properties "available" and "translations" are then populated
as needed.
This implementation passes boot test with no visible changes
on screen for HelenOS-0.4.0-sparc64.iso
Linux boot does not really improve this time due to
conflicts with memory mappings in low memory region.
Also there is a problem in qemu with evaluation of conditional
codes in case disrupting trap is taken before conditional
branch is executed. This precludes silo second-stage code from
working. Patch fixing that is posted to qemu-devel list.
Signed-off-by: igor.v.kovalenko(a)gmail.com
--
Kind regards,
Igor V. Kovalenko
10 years, 4 months
- 1
- 6
RFC: Best way to implement debugging support
by Mark Cave-Ayland
Hi all,
Over the past few weeks, I've been experimenting with different
approaches to allow me to break and single-step through certain code
sections to help me debug issues with Sparc64. Sadly, after a reasonable
amount of experimentation, I haven't managed to come up with anything
that works 100% per specification and so thought I'd ask the list to see
if there are any better ideas.
My aim has been to implement a subset of the OF spec 7.5.3.4 "Forth
source-level debugger" commands to enable me to step through various
code sections.
The main problem I have at the moment is that there doesn't seem to be
an easy way to determine which word is currently being executed in order
to decide whether to execute the word normally or single step through it.
The nearest I have managed so far is to append a debug marker to the
return stack indicating whether words executed in the current stack
frame should executed normally or single-stepped. This works for the
majority of words, except for those which push/pop items from the return
stack during execution - as soon as the return stack is popped, the
marker is lost and so debug disappears part way through a word :(
Can anyone else come up with a better idea of implementing this so that
it can work with words that modify the return stack?
ATB,
Mark.
--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: +44 870 608 0063
10 years, 4 months
- 1
- 0