Commit ccdb4c55 authored by Tony Nguyen's avatar Tony Nguyen Committed by Richard Henderson
Browse files

target/sparc: sun4u Invert Endian TTE bit 



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: default avatarTony Nguyen <tony.nguyen@bt.com>
Reviewed-by: default avatarRichard Henderson <richard.henderson@linaro.org>
Tested-by: default avatarMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <3c8d5181a584f1b3712d3d8d66801b13cecb4b88.1566466906.git.tony.nguyen@bt.com>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent 9bed46e6

target/sparc/cpu.h

+2 −0
Original line number Diff line number Diff line
@@ -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)

target/sparc/mmu_helper.c

+7 −1
Original line number Diff line number Diff line
@@ -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");