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| author | Cédric Le Goater <clg@kaod.org> | 2022-01-28 13:15:03 +0100 |
|---|---|---|
| committer | Cédric Le Goater <clg@kaod.org> | 2022-01-28 13:15:03 +0100 |
| commit | 47822486f5e7d6dad8d9a2381d127a831a3c5c11 (patch) | |
| tree | 79650ef64a17de48648d128f18f41f2324225089 /target | |
| parent | dc10da64e1f704bec8ed66f6a402d22589a3c4f9 (diff) | |
| download | qemu-47822486f5e7d6dad8d9a2381d127a831a3c5c11.zip qemu-47822486f5e7d6dad8d9a2381d127a831a3c5c11.tar.gz qemu-47822486f5e7d6dad8d9a2381d127a831a3c5c11.tar.bz2 | |
ppc/ppc405: Fix TLB flushing
Commit cd0c6f473532 did not take into account 405 CPUs when adding
support to batching of TCG tlb flushes. Set the TLB_NEED_LOCAL_FLUSH
flag when the SPR_40x_PID is set or a TLB updated.
Cc: Thomas Huth <thuth@redhat.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Fixes: cd0c6f473532 ("ppc: Do some batching of TCG tlb flushes")
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220113180352.1234512-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Diffstat (limited to 'target')
| -rw-r--r-- | target/ppc/helper.h | 1 | ||||
| -rw-r--r-- | target/ppc/mmu_helper.c | 12 | ||||
| -rw-r--r-- | target/ppc/translate.c | 2 |
3 files changed, 13 insertions, 2 deletions
diff --git a/target/ppc/helper.h b/target/ppc/helper.h index d318837..bdbbd5e 100644 --- a/target/ppc/helper.h +++ b/target/ppc/helper.h @@ -707,6 +707,7 @@ DEF_HELPER_FLAGS_1(load_40x_pit, TCG_CALL_NO_RWG, tl, env) DEF_HELPER_FLAGS_2(store_40x_pit, TCG_CALL_NO_RWG, void, env, tl) DEF_HELPER_FLAGS_2(store_40x_tcr, TCG_CALL_NO_RWG, void, env, tl) DEF_HELPER_FLAGS_2(store_40x_tsr, TCG_CALL_NO_RWG, void, env, tl) +DEF_HELPER_2(store_40x_pid, void, env, tl) DEF_HELPER_2(store_40x_dbcr0, void, env, tl) DEF_HELPER_2(store_40x_sler, void, env, tl) DEF_HELPER_FLAGS_2(store_booke_tcr, TCG_CALL_NO_RWG, void, env, tl) diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c index 59df695..a2a52a1 100644 --- a/target/ppc/mmu_helper.c +++ b/target/ppc/mmu_helper.c @@ -664,6 +664,14 @@ static inline int booke_page_size_to_tlb(target_ulong page_size) #define PPC4XX_TLBLO_ATTR_MASK 0x000000FF #define PPC4XX_TLBLO_RPN_MASK 0xFFFFFC00 +void helper_store_40x_pid(CPUPPCState *env, target_ulong val) +{ + if (env->spr[SPR_40x_PID] != val) { + env->spr[SPR_40x_PID] = val; + env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH; + } +} + target_ulong helper_4xx_tlbre_hi(CPUPPCState *env, target_ulong entry) { ppcemb_tlb_t *tlb; @@ -681,7 +689,7 @@ target_ulong helper_4xx_tlbre_hi(CPUPPCState *env, target_ulong entry) size = PPC4XX_TLBHI_SIZE_DEFAULT; } ret |= size << PPC4XX_TLBHI_SIZE_SHIFT; - env->spr[SPR_40x_PID] = tlb->PID; + helper_store_40x_pid(env, tlb->PID); return ret; } @@ -794,6 +802,8 @@ void helper_4xx_tlbwe_lo(CPUPPCState *env, target_ulong entry, tlb->prot & PAGE_WRITE ? 'w' : '-', tlb->prot & PAGE_EXEC ? 'x' : '-', tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); + + env->tlb_need_flush |= TLB_NEED_LOCAL_FLUSH; } target_ulong helper_4xx_tlbsx(CPUPPCState *env, target_ulong address) diff --git a/target/ppc/translate.c b/target/ppc/translate.c index 9d2adc0..d61c6f0 100644 --- a/target/ppc/translate.c +++ b/target/ppc/translate.c @@ -894,7 +894,7 @@ 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); + gen_helper_store_40x_pid(cpu_env, t0); tcg_temp_free(t0); } |