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target/sparc: sun4u Invert Endian TTE bit

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This bit configures endianness of PCI MMIO devices. It is used by
Solaris and OpenBSD sunhme drivers.

Tested working on OpenBSD.

Unfortunately Solaris 10 had a unrelated keyboard issue blocking
testing... another inch towards Solaris 10 on SPARC64 =)

Backports commit ccdb4c5535f41ee4da2ef158f58fca0327e50dab from qemu
This commit is contained in:
Tony Nguyen 2020-01-07 19:21:27 -05:00 committed by Lioncash
parent 7eea07fe55
commit 15eb165995
2 changed files with 9 additions and 1 deletions
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2
qemu/target/sparc/cpu.h
View file

@ -271,6 +271,7 @@ enum {
#define TTE_VALID_BIT (1ULL << 63)
#define TTE_NFO_BIT (1ULL << 60)
#define TTE_IE_BIT (1ULL << 59)
#define TTE_USED_BIT (1ULL << 41)
#define TTE_LOCKED_BIT (1ULL << 6)
#define TTE_SIDEEFFECT_BIT (1ULL << 3)
@ -287,6 +288,7 @@ enum {
#define TTE_IS_VALID(tte) ((tte) & TTE_VALID_BIT)
#define TTE_IS_NFO(tte) ((tte) & TTE_NFO_BIT)
#define TTE_IS_IE(tte) ((tte) & TTE_IE_BIT)
#define TTE_IS_USED(tte) ((tte) & TTE_USED_BIT)
#define TTE_IS_LOCKED(tte) ((tte) & TTE_LOCKED_BIT)
#define TTE_IS_SIDEEFFECT(tte) ((tte) & TTE_SIDEEFFECT_BIT)

8
qemu/target/sparc/mmu_helper.c
View file

@ -571,6 +571,10 @@ static int get_physical_address_data(CPUSPARCState *env, hwaddr *physical,
if (ultrasparc_tag_match(&env->dtlb[i], address, context, physical)) {
int do_fault = 0;
if (TTE_IS_IE(env->dtlb[i].tte)) {
attrs->byte_swap = true;
}
/* access ok? */
/* multiple bits in SFSR.FT may be set on TT_DFAULT */
if (TTE_IS_PRIV(env->dtlb[i].tte) && is_user) {
@ -826,7 +830,7 @@ void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUSPARCState *env)
}
if (TTE_IS_VALID(env->dtlb[i].tte)) {
(*cpu_fprintf)(f, "[%02u] VA: %" PRIx64 ", PA: %llx"
", %s, %s, %s, %s, ctx %" PRId64 " %s\n",
", %s, %s, %s, %s, ie %s, ctx %" PRId64 " %s\n",
i,
env->dtlb[i].tag & (uint64_t)~0x1fffULL,
TTE_PA(env->dtlb[i].tte),
@ -835,6 +839,8 @@ void dump_mmu(FILE *f, fprintf_function cpu_fprintf, CPUSPARCState *env)
TTE_IS_W_OK(env->dtlb[i].tte) ? "RW" : "RO",
TTE_IS_LOCKED(env->dtlb[i].tte) ?
"locked" : "unlocked",
TTE_IS_IE(env->dtlb[i].tte) ?
"yes" : "no",
env->dtlb[i].tag & (uint64_t)0x1fffULL,
TTE_IS_GLOBAL(env->dtlb[i].tte) ?
"global" : "local");