mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

target/sparc: sun4u Invert Endian TTE bit

Browse Source 
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 =)

Signed-off-by: Tony Nguyen <tony.nguyen@bt.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <3c8d5181a584f1b3712d3d8d66801b13cecb4b88.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Tony Nguyen 2019-08-24 04:36:58 +10:00 committed by Richard Henderson
parent 9bed46e67e
commit ccdb4c5535
2 changed files with 9 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target/sparc/cpu.h
View File

@ -275,6 +275,7 @@ 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)
@ -291,6 +292,7 @@ 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
target/sparc/mmu_helper.c
View File

@ -537,6 +537,10 @@ 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) {
@ -792,7 +796,7 @@ void dump_mmu(CPUSPARCState *env)
}
if (TTE_IS_VALID(env->dtlb[i].tte)) {
qemu_printf("[%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),
@ -801,6 +805,8 @@ void dump_mmu(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");