/branches/sparc/kernel/arch/ppc32/src/asm.S |
---|
0,0 → 1,277 |
# |
# Copyright (c) 2005 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/asm/regname.h> |
.text |
.global userspace_asm |
.global iret |
.global iret_syscall |
.global memsetb |
.global memcpy |
.global memcpy_from_uspace |
.global memcpy_to_uspace |
.global memcpy_from_uspace_failover_address |
.global memcpy_to_uspace_failover_address |
userspace_asm: |
# r3 = uspace_uarg |
# r4 = stack |
# r5 = entry |
# disable interrupts |
mfmsr r31 |
rlwinm r31, r31, 0, 17, 15 |
mtmsr r31 |
# set entry point |
mtsrr0 r5 |
# set problem state, enable interrupts |
ori r31, r31, msr_pr |
ori r31, r31, msr_ee |
mtsrr1 r31 |
# set stack |
mr sp, r4 |
# %r3 is defined to hold pcb_ptr - set it to 0 |
xor r3, r3, r3 |
# jump to userspace |
rfi |
iret: |
# disable interrupts |
mfmsr r31 |
rlwinm r31, r31, 0, 17, 15 |
mtmsr r31 |
lwz r0, 8(sp) |
lwz r2, 12(sp) |
lwz r3, 16(sp) |
lwz r4, 20(sp) |
lwz r5, 24(sp) |
lwz r6, 28(sp) |
lwz r7, 32(sp) |
lwz r8, 36(sp) |
lwz r9, 40(sp) |
lwz r10, 44(sp) |
lwz r11, 48(sp) |
lwz r13, 52(sp) |
lwz r14, 56(sp) |
lwz r15, 60(sp) |
lwz r16, 64(sp) |
lwz r17, 68(sp) |
lwz r18, 72(sp) |
lwz r19, 76(sp) |
lwz r20, 80(sp) |
lwz r21, 84(sp) |
lwz r22, 88(sp) |
lwz r23, 92(sp) |
lwz r24, 96(sp) |
lwz r25, 100(sp) |
lwz r26, 104(sp) |
lwz r27, 108(sp) |
lwz r28, 112(sp) |
lwz r29, 116(sp) |
lwz r30, 120(sp) |
lwz r31, 124(sp) |
lwz r12, 128(sp) |
mtcr r12 |
lwz r12, 132(sp) |
mtsrr0 r12 |
lwz r12, 136(sp) |
mtsrr1 r12 |
lwz r12, 140(sp) |
mtlr r12 |
lwz r12, 144(sp) |
mtctr r12 |
lwz r12, 148(sp) |
mtxer r12 |
lwz r12, 152(sp) |
lwz sp, 156(sp) |
rfi |
iret_syscall: |
# reset decrementer |
li r31, 1000 |
mtdec r31 |
# disable interrupts |
mfmsr r31 |
rlwinm r31, r31, 0, 17, 15 |
mtmsr r31 |
lwz r0, 8(sp) |
lwz r2, 12(sp) |
lwz r4, 20(sp) |
lwz r5, 24(sp) |
lwz r6, 28(sp) |
lwz r7, 32(sp) |
lwz r8, 36(sp) |
lwz r9, 40(sp) |
lwz r10, 44(sp) |
lwz r11, 48(sp) |
lwz r13, 52(sp) |
lwz r14, 56(sp) |
lwz r15, 60(sp) |
lwz r16, 64(sp) |
lwz r17, 68(sp) |
lwz r18, 72(sp) |
lwz r19, 76(sp) |
lwz r20, 80(sp) |
lwz r21, 84(sp) |
lwz r22, 88(sp) |
lwz r23, 92(sp) |
lwz r24, 96(sp) |
lwz r25, 100(sp) |
lwz r26, 104(sp) |
lwz r27, 108(sp) |
lwz r28, 112(sp) |
lwz r29, 116(sp) |
lwz r30, 120(sp) |
lwz r31, 124(sp) |
lwz r12, 128(sp) |
mtcr r12 |
lwz r12, 132(sp) |
mtsrr0 r12 |
lwz r12, 136(sp) |
mtsrr1 r12 |
lwz r12, 140(sp) |
mtlr r12 |
lwz r12, 144(sp) |
mtctr r12 |
lwz r12, 148(sp) |
mtxer r12 |
lwz r12, 152(sp) |
lwz sp, 156(sp) |
rfi |
memsetb: |
b _memsetb |
memcpy: |
memcpy_from_uspace: |
memcpy_to_uspace: |
srwi. r7, r5, 3 |
addi r6, r3, -4 |
addi r4, r4, -4 |
beq 2f |
andi. r0, r6, 3 |
mtctr r7 |
bne 5f |
1: |
lwz r7, 4(r4) |
lwzu r8, 8(r4) |
stw r7, 4(r6) |
stwu r8, 8(r6) |
bdnz 1b |
andi. r5, r5, 7 |
2: |
cmplwi 0, r5, 4 |
blt 3f |
lwzu r0, 4(r4) |
addi r5, r5, -4 |
stwu r0, 4(r6) |
3: |
cmpwi 0, r5, 0 |
beqlr |
mtctr r5 |
addi r4, r4, 3 |
addi r6, r6, 3 |
4: |
lbzu r0, 1(r4) |
stbu r0, 1(r6) |
bdnz 4b |
blr |
5: |
subfic r0, r0, 4 |
mtctr r0 |
6: |
lbz r7, 4(r4) |
addi r4, r4, 1 |
stb r7, 4(r6) |
addi r6, r6, 1 |
bdnz 6b |
subf r5, r0, r5 |
rlwinm. r7, r5, 32-3, 3, 31 |
beq 2b |
mtctr r7 |
b 1b |
memcpy_from_uspace_failover_address: |
memcpy_to_uspace_failover_address: |
# return zero, failure |
xor r3, r3, r3 |
blr |
/branches/sparc/kernel/arch/ppc32/src/mm/tlb.c |
---|
0,0 → 1,464 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32mm |
* @{ |
*/ |
/** @file |
*/ |
#include <mm/tlb.h> |
#include <arch/mm/tlb.h> |
#include <arch/interrupt.h> |
#include <mm/as.h> |
#include <arch.h> |
#include <print.h> |
#include <symtab.h> |
/** Try to find PTE for faulting address |
* |
* Try to find PTE for faulting address. |
* The as->lock must be held on entry to this function |
* if lock is true. |
* |
* @param as Address space. |
* @param lock Lock/unlock the address space. |
* @param badvaddr Faulting virtual address. |
* @param access Access mode that caused the fault. |
* @param istate Pointer to interrupted state. |
* @param pfrc Pointer to variable where as_page_fault() return code |
* will be stored. |
* @return PTE on success, NULL otherwise. |
* |
*/ |
static pte_t * |
find_mapping_and_check(as_t *as, bool lock, uintptr_t badvaddr, int access, |
istate_t *istate, int *pfrc) |
{ |
/* |
* Check if the mapping exists in page tables. |
*/ |
pte_t *pte = page_mapping_find(as, badvaddr); |
if ((pte) && (pte->p)) { |
/* |
* Mapping found in page tables. |
* Immediately succeed. |
*/ |
return pte; |
} else { |
int rc; |
/* |
* Mapping not found in page tables. |
* Resort to higher-level page fault handler. |
*/ |
page_table_unlock(as, lock); |
switch (rc = as_page_fault(badvaddr, access, istate)) { |
case AS_PF_OK: |
/* |
* The higher-level page fault handler succeeded, |
* The mapping ought to be in place. |
*/ |
page_table_lock(as, lock); |
pte = page_mapping_find(as, badvaddr); |
ASSERT((pte) && (pte->p)); |
*pfrc = 0; |
return pte; |
case AS_PF_DEFER: |
page_table_lock(as, lock); |
*pfrc = rc; |
return NULL; |
case AS_PF_FAULT: |
page_table_lock(as, lock); |
printf("Page fault.\n"); |
*pfrc = rc; |
return NULL; |
default: |
panic("unexpected rc (%d)\n", rc); |
} |
} |
} |
static void pht_refill_fail(uintptr_t badvaddr, istate_t *istate) |
{ |
char *symbol = ""; |
char *sym2 = ""; |
char *s = get_symtab_entry(istate->pc); |
if (s) |
symbol = s; |
s = get_symtab_entry(istate->lr); |
if (s) |
sym2 = s; |
panic("%p: PHT Refill Exception at %p (%s<-%s)\n", badvaddr, |
istate->pc, symbol, sym2); |
} |
static void pht_insert(const uintptr_t vaddr, const pfn_t pfn) |
{ |
uint32_t page = (vaddr >> 12) & 0xffff; |
uint32_t api = (vaddr >> 22) & 0x3f; |
uint32_t vsid; |
asm volatile ( |
"mfsrin %0, %1\n" |
: "=r" (vsid) |
: "r" (vaddr) |
); |
uint32_t sdr1; |
asm volatile ( |
"mfsdr1 %0\n" |
: "=r" (sdr1) |
); |
phte_t *phte = (phte_t *) PA2KA(sdr1 & 0xffff0000); |
/* Primary hash (xor) */ |
uint32_t h = 0; |
uint32_t hash = vsid ^ page; |
uint32_t base = (hash & 0x3ff) << 3; |
uint32_t i; |
bool found = false; |
/* Find unused or colliding |
PTE in PTEG */ |
for (i = 0; i < 8; i++) { |
if ((!phte[base + i].v) || ((phte[base + i].vsid == vsid) && |
(phte[base + i].api == api))) { |
found = true; |
break; |
} |
} |
if (!found) { |
/* Secondary hash (not) */ |
uint32_t base2 = (~hash & 0x3ff) << 3; |
/* Find unused or colliding |
PTE in PTEG */ |
for (i = 0; i < 8; i++) { |
if ((!phte[base2 + i].v) || |
((phte[base2 + i].vsid == vsid) && |
(phte[base2 + i].api == api))) { |
found = true; |
base = base2; |
h = 1; |
break; |
} |
} |
if (!found) { |
// TODO: A/C precedence groups |
i = page % 8; |
} |
} |
phte[base + i].v = 1; |
phte[base + i].vsid = vsid; |
phte[base + i].h = h; |
phte[base + i].api = api; |
phte[base + i].rpn = pfn; |
phte[base + i].r = 0; |
phte[base + i].c = 0; |
phte[base + i].pp = 2; // FIXME |
} |
static void pht_real_insert(const uintptr_t vaddr, const pfn_t pfn) |
{ |
uint32_t page = (vaddr >> 12) & 0xffff; |
uint32_t api = (vaddr >> 22) & 0x3f; |
uint32_t vsid; |
asm volatile ( |
"mfsrin %0, %1\n" |
: "=r" (vsid) |
: "r" (vaddr) |
); |
uint32_t sdr1; |
asm volatile ( |
"mfsdr1 %0\n" |
: "=r" (sdr1) |
); |
phte_t *phte_physical = (phte_t *) (sdr1 & 0xffff0000); |
/* Primary hash (xor) */ |
uint32_t h = 0; |
uint32_t hash = vsid ^ page; |
uint32_t base = (hash & 0x3ff) << 3; |
uint32_t i; |
bool found = false; |
/* Find unused or colliding |
PTE in PTEG */ |
for (i = 0; i < 8; i++) { |
if ((!phte_physical[base + i].v) || |
((phte_physical[base + i].vsid == vsid) && |
(phte_physical[base + i].api == api))) { |
found = true; |
break; |
} |
} |
if (!found) { |
/* Secondary hash (not) */ |
uint32_t base2 = (~hash & 0x3ff) << 3; |
/* Find unused or colliding |
PTE in PTEG */ |
for (i = 0; i < 8; i++) { |
if ((!phte_physical[base2 + i].v) || |
((phte_physical[base2 + i].vsid == vsid) && |
(phte_physical[base2 + i].api == api))) { |
found = true; |
base = base2; |
h = 1; |
break; |
} |
} |
if (!found) { |
// TODO: A/C precedence groups |
i = page % 8; |
} |
} |
phte_physical[base + i].v = 1; |
phte_physical[base + i].vsid = vsid; |
phte_physical[base + i].h = h; |
phte_physical[base + i].api = api; |
phte_physical[base + i].rpn = pfn; |
phte_physical[base + i].r = 0; |
phte_physical[base + i].c = 0; |
phte_physical[base + i].pp = 2; // FIXME |
} |
/** Process Instruction/Data Storage Interrupt |
* |
* @param n Interrupt vector number. |
* @param istate Interrupted register context. |
* |
*/ |
void pht_refill(int n, istate_t *istate) |
{ |
uintptr_t badvaddr; |
pte_t *pte; |
int pfrc; |
as_t *as; |
bool lock; |
if (AS == NULL) { |
as = AS_KERNEL; |
lock = false; |
} else { |
as = AS; |
lock = true; |
} |
if (n == VECTOR_DATA_STORAGE) { |
asm volatile ( |
"mfdar %0\n" |
: "=r" (badvaddr) |
); |
} else |
badvaddr = istate->pc; |
page_table_lock(as, lock); |
pte = find_mapping_and_check(as, lock, badvaddr, |
PF_ACCESS_READ /* FIXME */, istate, &pfrc); |
if (!pte) { |
switch (pfrc) { |
case AS_PF_FAULT: |
goto fail; |
break; |
case AS_PF_DEFER: |
/* |
* The page fault came during copy_from_uspace() |
* or copy_to_uspace(). |
*/ |
page_table_unlock(as, lock); |
return; |
default: |
panic("Unexpected pfrc (%d)\n", pfrc); |
} |
} |
pte->a = 1; /* Record access to PTE */ |
pht_insert(badvaddr, pte->pfn); |
page_table_unlock(as, lock); |
return; |
fail: |
page_table_unlock(as, lock); |
pht_refill_fail(badvaddr, istate); |
} |
/** Process Instruction/Data Storage Interrupt in Real Mode |
* |
* @param n Interrupt vector number. |
* @param istate Interrupted register context. |
* |
*/ |
bool pht_real_refill(int n, istate_t *istate) |
{ |
uintptr_t badvaddr; |
if (n == VECTOR_DATA_STORAGE) { |
asm volatile ( |
"mfdar %0\n" |
: "=r" (badvaddr) |
); |
} else |
badvaddr = istate->pc; |
uint32_t physmem; |
asm volatile ( |
"mfsprg3 %0\n" |
: "=r" (physmem) |
); |
if ((badvaddr >= PA2KA(0)) && (badvaddr < PA2KA(physmem))) { |
pht_real_insert(badvaddr, KA2PA(badvaddr) >> 12); |
return true; |
} |
return false; |
} |
void tlb_arch_init(void) |
{ |
tlb_invalidate_all(); |
} |
void tlb_invalidate_all(void) |
{ |
asm volatile ( |
"tlbia\n" |
"tlbsync\n" |
); |
} |
void tlb_invalidate_asid(asid_t asid) |
{ |
uint32_t sdr1; |
asm volatile ( |
"mfsdr1 %0\n" |
: "=r" (sdr1) |
); |
phte_t *phte = (phte_t *) PA2KA(sdr1 & 0xffff0000); |
uint32_t i; |
for (i = 0; i < 8192; i++) { |
if ((phte[i].v) && (phte[i].vsid >= (asid << 4)) && |
(phte[i].vsid < ((asid << 4) + 16))) |
phte[i].v = 0; |
} |
tlb_invalidate_all(); |
} |
void tlb_invalidate_pages(asid_t asid, uintptr_t page, count_t cnt) |
{ |
// TODO |
tlb_invalidate_all(); |
} |
#define PRINT_BAT(name, ureg, lreg) \ |
asm volatile ( \ |
"mfspr %0," #ureg "\n" \ |
"mfspr %1," #lreg "\n" \ |
: "=r" (upper), "=r" (lower) \ |
); \ |
mask = (upper & 0x1ffc) >> 2; \ |
if (upper & 3) { \ |
uint32_t tmp = mask; \ |
length = 128; \ |
while (tmp) { \ |
if ((tmp & 1) == 0) { \ |
printf("ibat[0]: error in mask\n"); \ |
break; \ |
} \ |
length <<= 1; \ |
tmp >>= 1; \ |
} \ |
} else \ |
length = 0; \ |
printf(name ": page=%.*p frame=%.*p length=%d KB (mask=%#x)%s%s\n", \ |
sizeof(upper) * 2, upper & 0xffff0000, sizeof(lower) * 2, \ |
lower & 0xffff0000, length, mask, \ |
((upper >> 1) & 1) ? " supervisor" : "", \ |
(upper & 1) ? " user" : ""); |
void tlb_print(void) |
{ |
uint32_t sr; |
for (sr = 0; sr < 16; sr++) { |
uint32_t vsid; |
asm volatile ( |
"mfsrin %0, %1\n" |
: "=r" (vsid) |
: "r" (sr << 28) |
); |
printf("vsid[%d]: VSID=%.*p (ASID=%d)%s%s\n", sr, |
sizeof(vsid) * 2, vsid & 0xffffff, (vsid & 0xffffff) >> 4, |
((vsid >> 30) & 1) ? " supervisor" : "", |
((vsid >> 29) & 1) ? " user" : ""); |
} |
uint32_t upper; |
uint32_t lower; |
uint32_t mask; |
uint32_t length; |
PRINT_BAT("ibat[0]", 528, 529); |
PRINT_BAT("ibat[1]", 530, 531); |
PRINT_BAT("ibat[2]", 532, 533); |
PRINT_BAT("ibat[3]", 534, 535); |
PRINT_BAT("dbat[0]", 536, 537); |
PRINT_BAT("dbat[1]", 538, 539); |
PRINT_BAT("dbat[2]", 540, 541); |
PRINT_BAT("dbat[3]", 542, 543); |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/mm/page.c |
---|
0,0 → 1,67 |
/* |
* Copyright (c) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32mm |
* @{ |
*/ |
/** @file |
*/ |
#include <genarch/mm/page_pt.h> |
#include <mm/frame.h> |
#include <mm/as.h> |
#include <align.h> |
#include <config.h> |
void page_arch_init(void) |
{ |
if (config.cpu_active == 1) |
page_mapping_operations = &pt_mapping_operations; |
} |
uintptr_t hw_map(uintptr_t physaddr, size_t size) |
{ |
if (last_frame + ALIGN_UP(size, PAGE_SIZE) > |
KA2PA(KERNEL_ADDRESS_SPACE_END_ARCH)) |
panic("Unable to map physical memory %p (%" PRIs " bytes)", |
physaddr, size) |
uintptr_t virtaddr = PA2KA(last_frame); |
pfn_t i; |
for (i = 0; i < ADDR2PFN(ALIGN_UP(size, PAGE_SIZE)); i++) |
page_mapping_insert(AS_KERNEL, virtaddr + PFN2ADDR(i), |
physaddr + PFN2ADDR(i), PAGE_NOT_CACHEABLE | PAGE_WRITE); |
last_frame = ALIGN_UP(last_frame + size, FRAME_SIZE); |
return virtaddr; |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/mm/frame.c |
---|
0,0 → 1,92 |
/* |
* Copyright (c) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32mm |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/boot/boot.h> |
#include <arch/mm/frame.h> |
#include <mm/frame.h> |
#include <align.h> |
#include <macros.h> |
#include <print.h> |
uintptr_t last_frame = 0; |
void physmem_print(void) |
{ |
unsigned int i; |
printf("Base Size\n"); |
printf("---------- ----------\n"); |
for (i = 0; i < bootinfo.memmap.count; i++) { |
printf("%#10x %#10x\n", bootinfo.memmap.zones[i].start, |
bootinfo.memmap.zones[i].size); |
} |
} |
void frame_arch_init(void) |
{ |
pfn_t minconf = 2; |
count_t i; |
pfn_t start, conf; |
size_t size; |
for (i = 0; i < bootinfo.memmap.count; i++) { |
start = ADDR2PFN(ALIGN_UP(bootinfo.memmap.zones[i].start, FRAME_SIZE)); |
size = SIZE2FRAMES(ALIGN_DOWN(bootinfo.memmap.zones[i].size, FRAME_SIZE)); |
if ((minconf < start) || (minconf >= start + size)) |
conf = start; |
else |
conf = minconf; |
zone_create(start, size, conf, 0); |
if (last_frame < ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE)) |
last_frame = ALIGN_UP(bootinfo.memmap.zones[i].start + bootinfo.memmap.zones[i].size, FRAME_SIZE); |
} |
/* First is exception vector, second is 'implementation specific', |
third and fourth is reserved, other contain real mode code */ |
frame_mark_unavailable(0, 8); |
/* Mark the Page Hash Table frames as unavailable */ |
uint32_t sdr1; |
asm volatile ( |
"mfsdr1 %0\n" |
: "=r" (sdr1) |
); |
frame_mark_unavailable(ADDR2PFN(sdr1 & 0xffff000), 16); // FIXME |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/mm/as.c |
---|
0,0 → 1,81 |
/* |
* Copyright (c) 2006 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32mm |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/mm/as.h> |
#include <genarch/mm/as_pt.h> |
#include <genarch/mm/asid_fifo.h> |
#include <arch.h> |
/** Architecture dependent address space init. */ |
void as_arch_init(void) |
{ |
as_operations = &as_pt_operations; |
asid_fifo_init(); |
} |
/** Install address space. |
* |
* Install ASID. |
* |
* @param as Address space structure. |
* |
*/ |
void as_install_arch(as_t *as) |
{ |
asid_t asid; |
uint32_t sr; |
asid = as->asid; |
/* Lower 2 GB, user and supervisor access */ |
for (sr = 0; sr < 8; sr++) { |
asm volatile ( |
"mtsrin %0, %1\n" |
: |
: "r" ((0x6000 << 16) + (asid << 4) + sr), "r" (sr << 28) |
); |
} |
/* Upper 2 GB, only supervisor access */ |
for (sr = 8; sr < 16; sr++) { |
asm volatile ( |
"mtsrin %0, %1\n" |
: |
: "r" ((0x4000 << 16) + (asid << 4) + sr), "r" (sr << 28) |
); |
} |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/interrupt.c |
---|
0,0 → 1,110 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32interrupt |
* @{ |
*/ |
/** @file |
*/ |
#include <ddi/irq.h> |
#include <interrupt.h> |
#include <arch/interrupt.h> |
#include <arch/types.h> |
#include <arch.h> |
#include <time/clock.h> |
#include <ipc/sysipc.h> |
#include <arch/drivers/pic.h> |
#include <arch/mm/tlb.h> |
#include <print.h> |
void start_decrementer(void) |
{ |
asm volatile ( |
"mtdec %0\n" |
: |
: "r" (1000) |
); |
} |
/** Handler of external interrupts */ |
static void exception_external(int n, istate_t *istate) |
{ |
int inum; |
while ((inum = pic_get_pending()) != -1) { |
bool ack = false; |
irq_t *irq = irq_dispatch_and_lock(inum); |
if (irq) { |
/* |
* The IRQ handler was found. |
*/ |
if (irq->preack) { |
/* Acknowledge the interrupt before processing */ |
pic_ack_interrupt(inum); |
ack = true; |
} |
irq->handler(irq, irq->arg); |
spinlock_unlock(&irq->lock); |
} else { |
/* |
* Spurious interrupt. |
*/ |
#ifdef CONFIG_DEBUG |
printf("cpu%u: spurious interrupt (inum=%d)\n", CPU->id, inum); |
#endif |
} |
if (!ack) |
pic_ack_interrupt(inum); |
} |
} |
static void exception_decrementer(int n, istate_t *istate) |
{ |
clock(); |
start_decrementer(); |
} |
/* Initialize basic tables for exception dispatching */ |
void interrupt_init(void) |
{ |
exc_register(VECTOR_DATA_STORAGE, "data_storage", pht_refill); |
exc_register(VECTOR_INSTRUCTION_STORAGE, "instruction_storage", pht_refill); |
exc_register(VECTOR_EXTERNAL, "external", exception_external); |
exc_register(VECTOR_DECREMENTER, "timer", exception_decrementer); |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/context.S |
---|
0,0 → 1,60 |
# |
# Copyright (c) 2005 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/context_offset.h> |
.text |
.global context_save_arch |
.global context_restore_arch |
context_save_arch: |
CONTEXT_SAVE_ARCH_CORE r3 |
mflr r4 |
stw r4, OFFSET_PC(r3) |
mfcr r4 |
stw r4, OFFSET_CR(r3) |
# context_save returns 1 |
li r3, 1 |
blr |
context_restore_arch: |
CONTEXT_RESTORE_ARCH_CORE r3 |
lwz r4, OFFSET_CR(r3) |
mtcr r4 |
lwz r4, OFFSET_PC(r3) |
mtlr r4 |
# context_restore returns 0 |
li r3, 0 |
blr |
/branches/sparc/kernel/arch/ppc32/src/ppc32.c |
---|
0,0 → 1,155 |
/* |
* Copyright (c) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32 |
* @{ |
*/ |
/** @file |
*/ |
#include <config.h> |
#include <arch.h> |
#include <arch/boot/boot.h> |
#include <arch/drivers/cuda.h> |
#include <arch/interrupt.h> |
#include <genarch/fb/fb.h> |
#include <genarch/fb/visuals.h> |
#include <userspace.h> |
#include <proc/uarg.h> |
#include <console/console.h> |
#include <ddi/device.h> |
#include <ddi/irq.h> |
#include <arch/drivers/pic.h> |
#define IRQ_COUNT 64 |
bootinfo_t bootinfo; |
void arch_pre_main(void) |
{ |
/* Setup usermode */ |
init.cnt = bootinfo.taskmap.count; |
uint32_t i; |
for (i = 0; i < bootinfo.taskmap.count; i++) { |
init.tasks[i].addr = PA2KA(bootinfo.taskmap.tasks[i].addr); |
init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
} |
} |
void arch_pre_mm_init(void) |
{ |
/* Initialize dispatch table */ |
interrupt_init(); |
/* Start decrementer */ |
start_decrementer(); |
} |
void arch_post_mm_init(void) |
{ |
if (config.cpu_active == 1) { |
/* Initialize framebuffer */ |
unsigned int visual; |
switch (bootinfo.screen.bpp) { |
case 8: |
visual = VISUAL_INDIRECT_8; |
break; |
case 16: |
visual = VISUAL_RGB_5_5_5; |
break; |
case 24: |
visual = VISUAL_RGB_8_8_8; |
break; |
case 32: |
visual = VISUAL_RGB_0_8_8_8; |
break; |
default: |
panic("Unsupported bits per pixel"); |
} |
fb_init(bootinfo.screen.addr, bootinfo.screen.width, bootinfo.screen.height, bootinfo.screen.scanline, visual); |
/* Initialize IRQ routing */ |
irq_init(IRQ_COUNT, IRQ_COUNT); |
/* Initialize PIC */ |
pic_init(bootinfo.keyboard.addr, PAGE_SIZE); |
/* Initialize I/O controller */ |
cuda_init(device_assign_devno(), bootinfo.keyboard.addr + 0x16000, 2 * PAGE_SIZE); |
/* Merge all zones to 1 big zone */ |
zone_merge_all(); |
} |
} |
void arch_post_cpu_init(void) |
{ |
} |
void arch_pre_smp_init(void) |
{ |
} |
void arch_post_smp_init(void) |
{ |
} |
void calibrate_delay_loop(void) |
{ |
} |
void userspace(uspace_arg_t *kernel_uarg) |
{ |
userspace_asm((uintptr_t) kernel_uarg->uspace_uarg, (uintptr_t) kernel_uarg->uspace_stack + THREAD_STACK_SIZE - SP_DELTA, (uintptr_t) kernel_uarg->uspace_entry); |
/* Unreachable */ |
for (;;) |
; |
} |
/** Acquire console back for kernel |
* |
*/ |
void arch_grab_console(void) |
{ |
cuda_grab(); |
} |
/** Return console to userspace |
* |
*/ |
void arch_release_console(void) |
{ |
cuda_release(); |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/drivers/cuda.c |
---|
0,0 → 1,355 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32 |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/drivers/cuda.h> |
#include <ipc/irq.h> |
#include <arch/asm.h> |
#include <console/console.h> |
#include <console/chardev.h> |
#include <arch/drivers/pic.h> |
#include <sysinfo/sysinfo.h> |
#include <interrupt.h> |
#include <stdarg.h> |
#define CUDA_IRQ 10 |
#define SPECIAL '?' |
#define PACKET_ADB 0x00 |
#define PACKET_CUDA 0x01 |
#define CUDA_POWERDOWN 0x0a |
#define CUDA_RESET 0x11 |
#define RS 0x200 |
#define B (0 * RS) |
#define A (1 * RS) |
#define SR (10 * RS) |
#define ACR (11 * RS) |
#define SR_OUT 0x10 |
#define TACK 0x10 |
#define TIP 0x20 |
static volatile uint8_t *cuda = NULL; |
static irq_t cuda_irq; /**< Cuda's IRQ. */ |
static char lchars[0x80] = { |
'a', |
's', |
'd', |
'f', |
'h', |
'g', |
'z', |
'x', |
'c', |
'v', |
SPECIAL, |
'b', |
'q', |
'w', |
'e', |
'r', |
'y', |
't', |
'1', |
'2', |
'3', |
'4', |
'6', |
'5', |
'=', |
'9', |
'7', |
'-', |
'8', |
'0', |
']', |
'o', |
'u', |
'[', |
'i', |
'p', |
'\n', /* Enter */ |
'l', |
'j', |
'\'', |
'k', |
';', |
'\\', |
',', |
'/', |
'n', |
'm', |
'.', |
'\t', /* Tab */ |
' ', |
'`', |
'\b', /* Backspace */ |
SPECIAL, |
SPECIAL, /* Escape */ |
SPECIAL, /* Ctrl */ |
SPECIAL, /* Alt */ |
SPECIAL, /* Shift */ |
SPECIAL, /* Caps-Lock */ |
SPECIAL, /* RAlt */ |
SPECIAL, /* Left */ |
SPECIAL, /* Right */ |
SPECIAL, /* Down */ |
SPECIAL, /* Up */ |
SPECIAL, |
SPECIAL, |
'.', /* Keypad . */ |
SPECIAL, |
'*', /* Keypad * */ |
SPECIAL, |
'+', /* Keypad + */ |
SPECIAL, |
SPECIAL, /* NumLock */ |
SPECIAL, |
SPECIAL, |
SPECIAL, |
'/', /* Keypad / */ |
'\n', /* Keypad Enter */ |
SPECIAL, |
'-', /* Keypad - */ |
SPECIAL, |
SPECIAL, |
SPECIAL, |
'0', /* Keypad 0 */ |
'1', /* Keypad 1 */ |
'2', /* Keypad 2 */ |
'3', /* Keypad 3 */ |
'4', /* Keypad 4 */ |
'5', /* Keypad 5 */ |
'6', /* Keypad 6 */ |
'7', /* Keypad 7 */ |
SPECIAL, |
'8', /* Keypad 8 */ |
'9', /* Keypad 9 */ |
SPECIAL, |
SPECIAL, |
SPECIAL, |
SPECIAL, /* F5 */ |
SPECIAL, /* F6 */ |
SPECIAL, /* F7 */ |
SPECIAL, /* F3 */ |
SPECIAL, /* F8 */ |
SPECIAL, /* F9 */ |
SPECIAL, |
SPECIAL, /* F11 */ |
SPECIAL, |
SPECIAL, /* F13 */ |
SPECIAL, |
SPECIAL, /* ScrollLock */ |
SPECIAL, |
SPECIAL, /* F10 */ |
SPECIAL, |
SPECIAL, /* F12 */ |
SPECIAL, |
SPECIAL, /* Pause */ |
SPECIAL, /* Insert */ |
SPECIAL, /* Home */ |
SPECIAL, /* PageUp */ |
SPECIAL, /* Delete */ |
SPECIAL, /* F4 */ |
SPECIAL, /* End */ |
SPECIAL, /* F2 */ |
SPECIAL, /* PageDown */ |
SPECIAL /* F1 */ |
}; |
static void receive_packet(uint8_t *kind, index_t count, uint8_t data[]) |
{ |
cuda[B] = cuda[B] & ~TIP; |
*kind = cuda[SR]; |
index_t i; |
for (i = 0; i < count; i++) |
data[i] = cuda[SR]; |
cuda[B] = cuda[B] | TIP; |
} |
/* Called from getc(). */ |
static void cuda_resume(chardev_t *d) |
{ |
} |
/* Called from getc(). */ |
static void cuda_suspend(chardev_t *d) |
{ |
} |
static char key_read(chardev_t *d) |
{ |
char ch; |
ch = 0; |
return ch; |
} |
static chardev_t kbrd; |
static chardev_operations_t ops = { |
.suspend = cuda_suspend, |
.resume = cuda_resume, |
.read = key_read |
}; |
int cuda_get_scancode(void) |
{ |
uint8_t kind; |
uint8_t data[4]; |
receive_packet(&kind, 4, data); |
if ((kind == PACKET_ADB) && (data[0] == 0x40) && (data[1] == 0x2c)) |
return data[2]; |
return -1; |
} |
static void cuda_irq_handler(irq_t *irq, void *arg, ...) |
{ |
if ((irq->notif_cfg.notify) && (irq->notif_cfg.answerbox)) |
ipc_irq_send_notif(irq); |
else { |
int scan_code = cuda_get_scancode(); |
if (scan_code != -1) { |
uint8_t scancode = (uint8_t) scan_code; |
if ((scancode & 0x80) != 0x80) |
chardev_push_character(&kbrd, lchars[scancode & 0x7f]); |
} |
} |
} |
static irq_ownership_t cuda_claim(void) |
{ |
return IRQ_ACCEPT; |
} |
/** Initialize keyboard and service interrupts using kernel routine */ |
void cuda_grab(void) |
{ |
ipl_t ipl = interrupts_disable(); |
spinlock_lock(&cuda_irq.lock); |
cuda_irq.notif_cfg.notify = false; |
spinlock_unlock(&cuda_irq.lock); |
interrupts_restore(ipl); |
} |
/** Resume the former interrupt vector */ |
void cuda_release(void) |
{ |
ipl_t ipl = interrupts_disable(); |
spinlock_lock(&cuda_irq.lock); |
if (cuda_irq.notif_cfg.answerbox) |
cuda_irq.notif_cfg.notify = true; |
spinlock_unlock(&cuda_irq.unlock); |
interrupts_restore(ipl); |
} |
void cuda_init(devno_t devno, uintptr_t base, size_t size) |
{ |
cuda = (uint8_t *) hw_map(base, size); |
chardev_initialize("cuda_kbd", &kbrd, &ops); |
stdin = &kbrd; |
irq_initialize(&cuda_irq); |
cuda_irq.devno = devno; |
cuda_irq.inr = CUDA_IRQ; |
cuda_irq.claim = cuda_claim; |
cuda_irq.handler = cuda_irq_handler; |
irq_register(&cuda_irq); |
pic_enable_interrupt(CUDA_IRQ); |
sysinfo_set_item_val("kbd", NULL, true); |
sysinfo_set_item_val("kbd.devno", NULL, devno); |
sysinfo_set_item_val("kbd.inr", NULL, CUDA_IRQ); |
sysinfo_set_item_val("kbd.address.virtual", NULL, base); |
} |
static void send_packet(const uint8_t kind, count_t count, ...) |
{ |
index_t i; |
va_list va; |
cuda[B] = cuda[B] | TIP; |
cuda[ACR] = cuda[ACR] | SR_OUT; |
cuda[SR] = kind; |
cuda[B] = cuda[B] & ~TIP; |
va_start(va, count); |
for (i = 0; i < count; i++) { |
cuda[ACR] = cuda[ACR] | SR_OUT; |
cuda[SR] = va_arg(va, int); |
cuda[B] = cuda[B] | TACK; |
} |
va_end(va); |
cuda[B] = cuda[B] | TIP; |
} |
void cpu_halt(void) { |
asm volatile ( |
"b 0\n" |
); |
} |
void arch_reboot(void) { |
send_packet(PACKET_CUDA, 1, CUDA_RESET); |
asm volatile ( |
"b 0\n" |
); |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/drivers/pic.c |
---|
0,0 → 1,92 |
/* |
* Copyright (c) 2006 Ondrej Palkovsky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32 |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/drivers/pic.h> |
#include <mm/page.h> |
#include <byteorder.h> |
#include <bitops.h> |
static volatile uint32_t *pic; |
void pic_init(uintptr_t base, size_t size) |
{ |
pic = (uint32_t *) hw_map(base, size); |
} |
void pic_enable_interrupt(int intnum) |
{ |
if (intnum < 32) { |
pic[PIC_MASK_LOW] = pic[PIC_MASK_LOW] | (1 << intnum); |
} else { |
pic[PIC_MASK_HIGH] = pic[PIC_MASK_HIGH] | (1 << (intnum - 32)); |
} |
} |
void pic_disable_interrupt(int intnum) |
{ |
if (intnum < 32) { |
pic[PIC_MASK_LOW] = pic[PIC_MASK_LOW] & (~(1 << intnum)); |
} else { |
pic[PIC_MASK_HIGH] = pic[PIC_MASK_HIGH] & (~(1 << (intnum - 32))); |
} |
} |
void pic_ack_interrupt(int intnum) |
{ |
if (intnum < 32) |
pic[PIC_ACK_LOW] = 1 << intnum; |
else |
pic[PIC_ACK_HIGH] = 1 << (intnum - 32); |
} |
/** Return number of pending interrupt */ |
int pic_get_pending(void) |
{ |
int pending; |
pending = pic[PIC_PENDING_LOW]; |
if (pending) |
return fnzb32(pending); |
pending = pic[PIC_PENDING_HIGH]; |
if (pending) |
return fnzb32(pending) + 32; |
return -1; |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/ddi/ddi.c |
---|
0,0 → 1,55 |
/* |
* Copyright (c) 2006 Jakub Jermar |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32ddi |
* @{ |
*/ |
/** @file |
*/ |
#include <ddi/ddi.h> |
#include <proc/task.h> |
#include <arch/types.h> |
/** Enable I/O space range for task. |
* |
* Interrupts are disabled and task is locked. |
* |
* @param task Task. |
* @param ioaddr Startign I/O space address. |
* @param size Size of the enabled I/O range. |
* |
* @return 0 on success or an error code from errno.h. |
*/ |
int ddi_iospace_enable_arch(task_t *task, uintptr_t ioaddr, size_t size) |
{ |
return 0; |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/cpu/cpu.c |
---|
0,0 → 1,79 |
/* |
* Copyright (c) 2005 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32 |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/cpu.h> |
#include <arch/cpuid.h> |
#include <cpu.h> |
#include <arch.h> |
#include <print.h> |
void cpu_arch_init(void) |
{ |
} |
void cpu_identify(void) |
{ |
cpu_info_t info; |
cpu_version(&info); |
CPU->arch.version = info.version; |
CPU->arch.revision = info.revision; |
} |
void cpu_print_report(cpu_t *m) |
{ |
char *name; |
switch (m->arch.version) { |
case 8: |
name = " (PowerPC 750)"; |
break; |
case 9: |
name = " (PowerPC 604e)"; |
break; |
case 0x81: |
name = " (PowerPC 8260)"; |
break; |
case 0x8081: |
name = " (PowerPC 826xA)"; |
break; |
default: |
name = ""; |
} |
printf("cpu%d: version=%d%s, revision=%d\n", m->id, m->arch.version, name, m->arch.revision); |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/exception.S |
---|
0,0 → 1,328 |
# |
# Copyright (c) 2006 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/asm/regname.h> |
#include <arch/mm/page.h> |
.section K_UNMAPPED_TEXT_START, "ax" |
.macro CONTEXT_STORE |
# save R12 in SPRG1, backup CR in R12 |
# save SP in SPRG2 |
mtsprg1 r12 |
mfcr r12 |
mtsprg2 sp |
# check whether SP is in kernel |
andis. sp, sp, 0x8000 |
bne 1f |
# stack is in user-space |
mfsprg0 sp |
b 2f |
1: |
# stack is in kernel |
mfsprg2 sp |
subis sp, sp, 0x8000 |
2: |
subi sp, sp, 160 |
stw r0, 8(sp) |
stw r2, 12(sp) |
stw r3, 16(sp) |
stw r4, 20(sp) |
stw r5, 24(sp) |
stw r6, 28(sp) |
stw r7, 32(sp) |
stw r8, 36(sp) |
stw r9, 40(sp) |
stw r10, 44(sp) |
stw r11, 48(sp) |
stw r13, 52(sp) |
stw r14, 56(sp) |
stw r15, 60(sp) |
stw r16, 64(sp) |
stw r17, 68(sp) |
stw r18, 72(sp) |
stw r19, 76(sp) |
stw r20, 80(sp) |
stw r21, 84(sp) |
stw r22, 88(sp) |
stw r23, 92(sp) |
stw r24, 96(sp) |
stw r25, 100(sp) |
stw r26, 104(sp) |
stw r27, 108(sp) |
stw r28, 112(sp) |
stw r29, 116(sp) |
stw r30, 120(sp) |
stw r31, 124(sp) |
stw r12, 128(sp) |
mfsrr0 r12 |
stw r12, 132(sp) |
mfsrr1 r12 |
stw r12, 136(sp) |
mflr r12 |
stw r12, 140(sp) |
mfctr r12 |
stw r12, 144(sp) |
mfxer r12 |
stw r12, 148(sp) |
mfsprg1 r12 |
stw r12, 152(sp) |
mfsprg2 r12 |
stw r12, 156(sp) |
.endm |
.org 0x100 |
.global exc_system_reset |
exc_system_reset: |
CONTEXT_STORE |
li r3, 0 |
b jump_to_kernel |
.org 0x200 |
.global exc_machine_check |
exc_machine_check: |
CONTEXT_STORE |
li r3, 1 |
b jump_to_kernel |
.org 0x300 |
.global exc_data_storage |
exc_data_storage: |
CONTEXT_STORE |
li r3, 2 |
mr r4, sp |
addi r4, r4, 8 |
bl pht_real_refill |
cmpwi r3, 0 |
bne iret_real |
li r3, 2 |
b jump_to_kernel |
.org 0x400 |
.global exc_instruction_storage |
exc_instruction_storage: |
CONTEXT_STORE |
li r3, 3 |
mr r4, sp |
addi r4, r4, 8 |
bl pht_real_refill |
cmpwi r3, 0 |
bne iret_real |
li r3, 3 |
b jump_to_kernel |
.org 0x500 |
.global exc_external |
exc_external: |
CONTEXT_STORE |
li r3, 4 |
b jump_to_kernel |
.org 0x600 |
.global exc_alignment |
exc_alignment: |
CONTEXT_STORE |
li r3, 5 |
b jump_to_kernel |
.org 0x700 |
.global exc_program |
exc_program: |
CONTEXT_STORE |
li r3, 6 |
b jump_to_kernel |
.org 0x800 |
.global exc_fp_unavailable |
exc_fp_unavailable: |
CONTEXT_STORE |
li r3, 7 |
b jump_to_kernel |
.org 0x900 |
.global exc_decrementer |
exc_decrementer: |
CONTEXT_STORE |
li r3, 8 |
b jump_to_kernel |
.org 0xa00 |
.global exc_reserved0 |
exc_reserved0: |
CONTEXT_STORE |
li r3, 9 |
b jump_to_kernel |
.org 0xb00 |
.global exc_reserved1 |
exc_reserved1: |
CONTEXT_STORE |
li r3, 10 |
b jump_to_kernel |
.org 0xc00 |
.global exc_syscall |
exc_syscall: |
CONTEXT_STORE |
b jump_to_kernel_syscall |
.org 0xd00 |
.global exc_trace |
exc_trace: |
CONTEXT_STORE |
li r3, 12 |
b jump_to_kernel |
.org 0x4000 |
jump_to_kernel: |
lis r12, iret@ha |
addi r12, r12, iret@l |
mtlr r12 |
lis r12, exc_dispatch@ha |
addi r12, r12, exc_dispatch@l |
mtsrr0 r12 |
mfmsr r12 |
ori r12, r12, (msr_ir | msr_dr)@l |
mtsrr1 r12 |
addis sp, sp, 0x8000 |
mr r4, sp |
addi r4, r4, 8 |
rfi |
jump_to_kernel_syscall: |
lis r12, syscall_handler@ha |
addi r12, r12, syscall_handler@l |
mtsrr0 r12 |
lis r12, iret_syscall@ha |
addi r12, r12, iret_syscall@l |
mtlr r12 |
mfmsr r12 |
ori r12, r12, (msr_ir | msr_dr)@l |
mtsrr1 r12 |
addis sp, sp, 0x8000 |
rfi |
iret_real: |
lwz r0, 8(sp) |
lwz r2, 12(sp) |
lwz r3, 16(sp) |
lwz r4, 20(sp) |
lwz r5, 24(sp) |
lwz r6, 28(sp) |
lwz r7, 32(sp) |
lwz r8, 36(sp) |
lwz r9, 40(sp) |
lwz r10, 44(sp) |
lwz r11, 48(sp) |
lwz r13, 52(sp) |
lwz r14, 56(sp) |
lwz r15, 60(sp) |
lwz r16, 64(sp) |
lwz r17, 68(sp) |
lwz r18, 72(sp) |
lwz r19, 76(sp) |
lwz r20, 80(sp) |
lwz r21, 84(sp) |
lwz r22, 88(sp) |
lwz r23, 92(sp) |
lwz r24, 96(sp) |
lwz r25, 100(sp) |
lwz r26, 104(sp) |
lwz r27, 108(sp) |
lwz r28, 112(sp) |
lwz r29, 116(sp) |
lwz r30, 120(sp) |
lwz r31, 124(sp) |
lwz r12, 128(sp) |
mtcr r12 |
lwz r12, 132(sp) |
mtsrr0 r12 |
lwz r12, 136(sp) |
mtsrr1 r12 |
lwz r12, 140(sp) |
mtlr r12 |
lwz r12, 144(sp) |
mtctr r12 |
lwz r12, 148(sp) |
mtxer r12 |
lwz r12, 152(sp) |
lwz sp, 156(sp) |
rfi |
/branches/sparc/kernel/arch/ppc32/src/fpu_context.S |
---|
0,0 → 1,105 |
# |
# Copyright (c) 2006 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/asm/regname.h> |
#include <arch/context_offset.h> |
.text |
.global fpu_context_save |
.global fpu_context_restore |
.global fpu_init |
.global fpu_enable |
.global fpu_disable |
.macro FPU_CONTEXT_STORE r |
stfd fr14, OFFSET_FR14(\r) |
stfd fr15, OFFSET_FR15(\r) |
stfd fr16, OFFSET_FR16(\r) |
stfd fr17, OFFSET_FR17(\r) |
stfd fr18, OFFSET_FR18(\r) |
stfd fr19, OFFSET_FR19(\r) |
stfd fr20, OFFSET_FR20(\r) |
stfd fr21, OFFSET_FR21(\r) |
stfd fr22, OFFSET_FR22(\r) |
stfd fr23, OFFSET_FR23(\r) |
stfd fr24, OFFSET_FR24(\r) |
stfd fr25, OFFSET_FR25(\r) |
stfd fr26, OFFSET_FR26(\r) |
stfd fr27, OFFSET_FR27(\r) |
stfd fr28, OFFSET_FR28(\r) |
stfd fr29, OFFSET_FR29(\r) |
stfd fr30, OFFSET_FR30(\r) |
stfd fr31, OFFSET_FR31(\r) |
.endm |
.macro FPU_CONTEXT_LOAD r |
lfd fr14, OFFSET_FR14(\r) |
lfd fr15, OFFSET_FR15(\r) |
lfd fr16, OFFSET_FR16(\r) |
lfd fr17, OFFSET_FR17(\r) |
lfd fr18, OFFSET_FR18(\r) |
lfd fr19, OFFSET_FR19(\r) |
lfd fr20, OFFSET_FR20(\r) |
lfd fr21, OFFSET_FR21(\r) |
lfd fr22, OFFSET_FR22(\r) |
lfd fr23, OFFSET_FR23(\r) |
lfd fr24, OFFSET_FR24(\r) |
lfd fr25, OFFSET_FR25(\r) |
lfd fr26, OFFSET_FR26(\r) |
lfd fr27, OFFSET_FR27(\r) |
lfd fr28, OFFSET_FR28(\r) |
lfd fr29, OFFSET_FR29(\r) |
lfd fr30, OFFSET_FR30(\r) |
lfd fr31, OFFSET_FR31(\r) |
.endm |
fpu_context_save: |
// FPU_CONTEXT_STORE r3 |
// |
// mffs fr0 |
// stfd fr0, OFFSET_FPSCR(r3) |
blr |
fpu_context_restore: |
// FPU_CONTEXT_LOAD r3 |
// |
// lfd fr0, OFFSET_FPSCR(r3) |
// mtfsf 7, fr0 |
blr |
fpu_init: |
blr |
fpu_enable: |
blr |
fpu_disable: |
blr |
/branches/sparc/kernel/arch/ppc32/src/boot/boot.S |
---|
0,0 → 1,81 |
# |
# Copyright (c) 2005 Jakub Jermar |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/asm/regname.h> |
#include <arch/boot/boot.h> |
.section K_TEXT_START, "ax" |
.global kernel_image_start |
kernel_image_start: |
# load temporal kernel stack |
lis sp, kernel_stack@ha |
addi sp, sp, kernel_stack@l |
# set kernel stack for interrupt handling |
mr r31, sp |
subis r31, r31, 0x8000 |
mtsprg0 r31 |
# r3 contains physical address of bootinfo_t |
# r4 contains size of bootinfo_t |
cmpwi r4, 0 |
beq bootinfo_end |
addis r3, r3, 0x8000 |
lis r31, bootinfo@ha |
addi r31, r31, bootinfo@l # r31 = bootinfo |
bootinfo_loop: |
lwz r30, 0(r3) |
stw r30, 0(r31) |
addi r3, r3, 4 |
addi r31, r31, 4 |
subi r4, r4, 4 |
cmpwi r4, 0 |
bgt bootinfo_loop |
bootinfo_end: |
bl arch_pre_main |
b main_bsp |
.section K_DATA_START, "aw", @progbits |
.align 12 |
kernel_stack_bottom: |
.space TEMP_STACK_SIZE |
kernel_stack: |
/branches/sparc/kernel/arch/ppc32/src/proc/scheduler.c |
---|
0,0 → 1,62 |
/* |
* Copyright (c) 2006 Martin Decky |
* All rights reserved. |
* |
* Redistribution and use in source and binary forms, with or without |
* modification, are permitted provided that the following conditions |
* are met: |
* |
* - Redistributions of source code must retain the above copyright |
* notice, this list of conditions and the following disclaimer. |
* - Redistributions in binary form must reproduce the above copyright |
* notice, this list of conditions and the following disclaimer in the |
* documentation and/or other materials provided with the distribution. |
* - The name of the author may not be used to endorse or promote products |
* derived from this software without specific prior written permission. |
* |
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
*/ |
/** @addtogroup ppc32proc |
* @{ |
*/ |
/** @file |
*/ |
#include <arch/mm/page.h> |
#include <arch/boot/boot.h> |
#include <proc/scheduler.h> |
#include <proc/thread.h> |
#include <arch.h> |
/** Perform ppc32 specific tasks needed before the new task is run. */ |
void before_task_runs_arch(void) |
{ |
} |
/** Perform ppc32 specific tasks needed before the new thread is scheduled. */ |
void before_thread_runs_arch(void) |
{ |
tlb_invalidate_all(); |
asm volatile ( |
"mtsprg0 %0\n" |
: |
: "r" (KA2PA(&THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA])) |
); |
} |
void after_thread_ran_arch(void) |
{ |
} |
/** @} |
*/ |
/branches/sparc/kernel/arch/ppc32/src/debug/panic.s |
---|
0,0 → 1,38 |
# |
# Copyright (c) 2005 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
#include <arch/asm/macro.h> |
.text |
.global panic_printf |
panic_printf: |
lis %r14, halt@ha |
addi %r14, %r14, halt@l |
mtlr %r14 # fake stack to make printf return to halt |
b printf |
/branches/sparc/kernel/arch/ppc32/src/dummy.s |
---|
0,0 → 1,38 |
# |
# Copyright (c) 2005 Jakub Jermar |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
.text |
.global asm_delay_loop |
.global sys_tls_set |
sys_tls_set: |
b sys_tls_set |
asm_delay_loop: |
blr |