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MIPS patches 2015-07-28 

Changes:
 * net/dp8393x fixes
 * Vectored Interrupts bug fix
 * fix for a bug in machine.c which was provoking a warning on FreeBSD
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Merge remote-tracking branch 'remotes/lalrae/tags/mips-20150728' into staging

MIPS patches 2015-07-28

Changes:
* net/dp8393x fixes
* Vectored Interrupts bug fix
* fix for a bug in machine.c which was provoking a warning on FreeBSD

# gpg: Signature made Tue Jul 28 10:47:19 2015 BST using RSA key ID 0B29DA6B
# gpg: Good signature from "Leon Alrae <leon.alrae@imgtec.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8DD3 2F98 5495 9D66 35D4  4FC0 5211 8E3C 0B29 DA6B

* remotes/lalrae/tags/mips-20150728:
  net/dp8393x: do not use memory_region_init_rom_device with NULL
  net/dp8393x: remove check of runt packets
  net/dp8393x: disable user creation
  target-mips: fix offset calculation for Interrupts
  target-mips: fix passing incompatible pointer type in machine.c

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
master
Peter Maydell 2015-07-28 15:25:24 +01:00
parent 5e868d2e5e 52579c681c
commit 8b89b3a8df
4 changed files with 31 additions and 33 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
hw/net/dp8393x.c
View File

@ -643,11 +643,6 @@ static int dp8393x_receive_filter(dp8393xState *s, const uint8_t * buf,
static const uint8_t bcast[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
int i;
/* Check for runt packet (remember that checksum is not there) */
if (size < 64 - 4) {
return (s->regs[SONIC_RCR] & SONIC_RCR_RNT) ? 0 : -1;
}
/* Check promiscuous mode */
if ((s->regs[SONIC_RCR] & SONIC_RCR_PRO) && (buf[0] & 1) == 0) {
return 0;
@ -836,6 +831,7 @@ static void dp8393x_realize(DeviceState *dev, Error **errp)
dp8393xState *s = DP8393X(dev);
int i, checksum;
uint8_t *prom;
Error *local_err = NULL;
address_space_init(&s->as, s->dma_mr, "dp8393x");
memory_region_init_io(&s->mmio, OBJECT(dev), &dp8393x_ops, s,
@ -848,8 +844,13 @@ static void dp8393x_realize(DeviceState *dev, Error **errp)
s->watchdog = timer_new_ns(QEMU_CLOCK_VIRTUAL, dp8393x_watchdog, s);
s->regs[SONIC_SR] = 0x0004; /* only revision recognized by Linux */
memory_region_init_rom_device(&s->prom, OBJECT(dev), NULL, NULL,
"dp8393x-prom", SONIC_PROM_SIZE, NULL);
memory_region_init_ram(&s->prom, OBJECT(dev),
"dp8393x-prom", SONIC_PROM_SIZE, &local_err);
if (local_err) {
error_propagate(errp, local_err);
return;
}
memory_region_set_readonly(&s->prom, true);
prom = memory_region_get_ram_ptr(&s->prom);
checksum = 0;
for (i = 0; i < 6; i++) {
@ -889,6 +890,8 @@ static void dp8393x_class_init(ObjectClass *klass, void *data)
dc->reset = dp8393x_reset;
dc->vmsd = &vmstate_dp8393x;
dc->props = dp8393x_properties;
/* Reason: dma_mr property can't be set */
dc->cannot_instantiate_with_device_add_yet = true;
}
static const TypeInfo dp8393x_info = {

42
target-mips/helper.c
View File

@ -565,34 +565,30 @@ void mips_cpu_do_interrupt(CPUState *cs)
break;
case EXCP_EXT_INTERRUPT:
cause = 0;
if (env->CP0_Cause & (1 << CP0Ca_IV))
offset = 0x200;
if (env->CP0_Cause & (1 << CP0Ca_IV)) {
uint32_t spacing = (env->CP0_IntCtl >> CP0IntCtl_VS) & 0x1f;
if (env->CP0_Config3 & ((1 << CP0C3_VInt) | (1 << CP0C3_VEIC))) {
/* Vectored Interrupts. */
unsigned int spacing;
unsigned int vector;
unsigned int pending = (env->CP0_Cause & CP0Ca_IP_mask) >> 8;
if ((env->CP0_Status & (1 << CP0St_BEV)) || spacing == 0) {
offset = 0x200;
} else {
uint32_t vector = 0;
uint32_t pending = (env->CP0_Cause & CP0Ca_IP_mask) >> CP0Ca_IP;
pending &= env->CP0_Status >> 8;
/* Compute the Vector Spacing. */
spacing = (env->CP0_IntCtl >> CP0IntCtl_VS) & ((1 << 6) - 1);
spacing <<= 5;
if (env->CP0_Config3 & (1 << CP0C3_VInt)) {
/* For VInt mode, the MIPS computes the vector internally. */
for (vector = 7; vector > 0; vector--) {
if (pending & (1 << vector)) {
/* Found it. */
break;
if (env->CP0_Config3 & (1 << CP0C3_VEIC)) {
/* For VEIC mode, the external interrupt controller feeds
* the vector through the CP0Cause IP lines. */
vector = pending;
} else {
/* Vectored Interrupts
* Mask with Status.IM7-IM0 to get enabled interrupts. */
pending &= (env->CP0_Status >> CP0St_IM) & 0xff;
/* Find the highest-priority interrupt. */
while (pending >>= 1) {
vector++;
}
}
} else {
/* For VEIC mode, the external interrupt controller feeds the
vector through the CP0Cause IP lines. */
vector = pending;
offset = 0x200 + (vector * (spacing << 5));
}
offset = 0x200 + vector * spacing;
}
goto set_EPC;
case EXCP_LTLBL:

3
target-mips/machine.c
View File

@ -153,6 +153,7 @@ static void put_tlb(QEMUFile *f, void *pv, size_t size)
{
r4k_tlb_t *v = pv;
uint8_t asid = v->ASID;
uint16_t flags = ((v->EHINV << 15) |
(v->RI1 << 14) |
(v->RI0 << 13) |
@ -168,7 +169,7 @@ static void put_tlb(QEMUFile *f, void *pv, size_t size)
qemu_put_betls(f, &v->VPN);
qemu_put_be32s(f, &v->PageMask);
qemu_put_8s(f, &v->ASID);
qemu_put_8s(f, &asid);
qemu_put_be16s(f, &flags);
qemu_put_be64s(f, &v->PFN[0]);
qemu_put_be64s(f, &v->PFN[1]);

2
target-mips/op_helper.c
View File

@ -1432,7 +1432,6 @@ void helper_mttc0_status(CPUMIPSState *env, target_ulong arg1)
void helper_mtc0_intctl(CPUMIPSState *env, target_ulong arg1)
{
/* vectored interrupts not implemented, no performance counters. */
env->CP0_IntCtl = (env->CP0_IntCtl & ~0x000003e0) | (arg1 & 0x000003e0);
}
@ -1473,7 +1472,6 @@ target_ulong helper_mftc0_ebase(CPUMIPSState *env)
void helper_mtc0_ebase(CPUMIPSState *env, target_ulong arg1)
{
/* vectored interrupts not implemented */
env->CP0_EBase = (env->CP0_EBase & ~0x3FFFF000) | (arg1 & 0x3FFFF000);
}