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| author | Cédric Le Goater <clg@kaod.org> | 2022-01-04 07:55:34 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2022-01-04 07:55:34 +0100 |
| commit | dd69d140cedc904f3491c17415f75d753c7f1be4 (patch) | |
| tree | 58687f50b1400139bf5b7bf0683a1c238c8ccf8e /target/ppc | |
| parent | c316203c1ee6f9a6c301a0a6767d27cbb6a65c46 (diff) | |
| download | qemu-dd69d140cedc904f3491c17415f75d753c7f1be4.zip qemu-dd69d140cedc904f3491c17415f75d753c7f1be4.tar.gz qemu-dd69d140cedc904f3491c17415f75d753c7f1be4.tar.bz2 | |
ppc/ppc405: Introduce a store helper for SPR_40x_PID
The PID SPR of the 405 CPU contains the translation ID of the TLB
which is a 8-bit field. Enforce the mask with a store helper.
Cc: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20211222064025.1541490-8-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220103063441.3424853-9-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'target/ppc')
| -rw-r--r-- | target/ppc/cpu_init.c | 2 | ||||
| -rw-r--r-- | target/ppc/spr_tcg.h | 1 | ||||
| -rw-r--r-- | target/ppc/translate.c | 8 |
3 files changed, 10 insertions, 1 deletions
diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c index b5e2fde..9ef9a1a 100644 --- a/target/ppc/cpu_init.c +++ b/target/ppc/cpu_init.c @@ -1454,7 +1454,7 @@ static void register_405_sprs(CPUPPCState *env) /* MMU */ spr_register(env, SPR_40x_PID, "PID", SPR_NOACCESS, SPR_NOACCESS, - &spr_read_generic, &spr_write_generic, + &spr_read_generic, &spr_write_40x_pid, 0x00000000); spr_register(env, SPR_4xx_CCR0, "CCR0", SPR_NOACCESS, SPR_NOACCESS, diff --git a/target/ppc/spr_tcg.h b/target/ppc/spr_tcg.h index 64cf530..89ff111 100644 --- a/target/ppc/spr_tcg.h +++ b/target/ppc/spr_tcg.h @@ -89,6 +89,7 @@ void spr_write_40x_dbcr0(DisasContext *ctx, int sprn, int gprn); void spr_write_40x_sler(DisasContext *ctx, int sprn, int gprn); void spr_write_40x_tcr(DisasContext *ctx, int sprn, int gprn); void spr_write_40x_tsr(DisasContext *ctx, int sprn, int gprn); +void spr_write_40x_pid(DisasContext *ctx, int sprn, int gprn); void spr_write_booke_tcr(DisasContext *ctx, int sprn, int gprn); void spr_write_booke_tsr(DisasContext *ctx, int sprn, int gprn); void spr_read_403_pbr(DisasContext *ctx, int gprn, int sprn); diff --git a/target/ppc/translate.c b/target/ppc/translate.c index eb45f67..cb8ab4d 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -890,6 +890,14 @@ void spr_write_40x_tsr(DisasContext *ctx, int sprn, int gprn) gen_helper_store_40x_tsr(cpu_env, cpu_gpr[gprn]); } +void spr_write_40x_pid(DisasContext *ctx, int sprn, int gprn) +{ + TCGv t0 = tcg_temp_new(); + tcg_gen_andi_tl(t0, cpu_gpr[gprn], 0xFF); + gen_store_spr(SPR_40x_PID, t0); + tcg_temp_free(t0); +} + void spr_write_booke_tcr(DisasContext *ctx, int sprn, int gprn) { gen_icount_io_start(ctx); |