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Tue, 04 May 2021 03:14:15 -0700 (PDT) Received: from localhost ([61.68.127.20]) by smtp.gmail.com with ESMTPSA id b1sm3120712pgf.84.2021.05.04.03.14.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 May 2021 03:14:15 -0700 (PDT) Date: Tue, 04 May 2021 20:14:09 +1000 From: Nicholas Piggin Subject: Re: [PATCH 1/2] powerpc/asm-offset: Remove unused items related to paca To: Benjamin Herrenschmidt , Christophe Leroy , Michael Ellerman , Paul Mackerras References: In-Reply-To: MIME-Version: 1.0 Message-Id: <1620121538.q0b7uiea5y.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Excerpts from Christophe Leroy's message of May 4, 2021 2:46 am: > PACA_SIZE, PACACONTEXTID, PACALOWSLICESPSIZE, PACAHIGHSLICEPSIZE, > PACA_SLB_ADDR_LIMIT, MMUPSIZEDEFSIZE, PACASLBCACHE, PACASLBCACHEPTR, > PACASTABRR, PACAVMALLOCSLLP, MMUPSIZESLLP, PACACONTEXTSLLP, > PACALPPACAPTR, LPPACA_DTLIDX and PACA_DTL_RIDX are not used anymore > by ASM code. Reviewed-by: Nicholas Piggin Also I think SIGSEGV, NMI_MASK, THREAD_DBCR0, KUAP?, TI_FLAGS, TI_PREEMPT, [ID]CACHEL1*, STACK_REGS_KUAP, EXC_LVL_SIZE, KVM_NEED_FLUSH,=20 KVM_FWNMI, VCPU_DEC, VCPU_SPMC, HSTATE_XICS_PHYS, HSTATE_SAVED_XIRR, PPC_DBELL_MSGTYPE I think. While we're cleaning it up. >=20 > Remove them. >=20 > Signed-off-by: Christophe Leroy > --- > arch/powerpc/kernel/asm-offsets.c | 24 ------------------------ > 1 file changed, 24 deletions(-) >=20 > diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-= offsets.c > index 28af4efb4587..419ab4a89114 100644 > --- a/arch/powerpc/kernel/asm-offsets.c > +++ b/arch/powerpc/kernel/asm-offsets.c > @@ -197,7 +197,6 @@ int main(void) > OFFSET(ICACHEL1LOGBLOCKSIZE, ppc64_caches, l1i.log_block_size); > OFFSET(ICACHEL1BLOCKSPERPAGE, ppc64_caches, l1i.blocks_per_page); > /* paca */ > - DEFINE(PACA_SIZE, sizeof(struct paca_struct)); > OFFSET(PACAPACAINDEX, paca_struct, paca_index); > OFFSET(PACAPROCSTART, paca_struct, cpu_start); > OFFSET(PACAKSAVE, paca_struct, kstack); > @@ -212,15 +211,6 @@ int main(void) > OFFSET(PACAIRQSOFTMASK, paca_struct, irq_soft_mask); > OFFSET(PACAIRQHAPPENED, paca_struct, irq_happened); > OFFSET(PACA_FTRACE_ENABLED, paca_struct, ftrace_enabled); > -#ifdef CONFIG_PPC_BOOK3S > - OFFSET(PACACONTEXTID, paca_struct, mm_ctx_id); > -#ifdef CONFIG_PPC_MM_SLICES > - OFFSET(PACALOWSLICESPSIZE, paca_struct, mm_ctx_low_slices_psize); > - OFFSET(PACAHIGHSLICEPSIZE, paca_struct, mm_ctx_high_slices_psize); > - OFFSET(PACA_SLB_ADDR_LIMIT, paca_struct, mm_ctx_slb_addr_limit); > - DEFINE(MMUPSIZEDEFSIZE, sizeof(struct mmu_psize_def)); > -#endif /* CONFIG_PPC_MM_SLICES */ > -#endif > =20 > #ifdef CONFIG_PPC_BOOK3E > OFFSET(PACAPGD, paca_struct, pgd); > @@ -241,21 +231,9 @@ int main(void) > #endif /* CONFIG_PPC_BOOK3E */ > =20 > #ifdef CONFIG_PPC_BOOK3S_64 > - OFFSET(PACASLBCACHE, paca_struct, slb_cache); > - OFFSET(PACASLBCACHEPTR, paca_struct, slb_cache_ptr); > - OFFSET(PACASTABRR, paca_struct, stab_rr); > - OFFSET(PACAVMALLOCSLLP, paca_struct, vmalloc_sllp); > -#ifdef CONFIG_PPC_MM_SLICES > - OFFSET(MMUPSIZESLLP, mmu_psize_def, sllp); > -#else > - OFFSET(PACACONTEXTSLLP, paca_struct, mm_ctx_sllp); > -#endif /* CONFIG_PPC_MM_SLICES */ > OFFSET(PACA_EXGEN, paca_struct, exgen); > OFFSET(PACA_EXMC, paca_struct, exmc); > OFFSET(PACA_EXNMI, paca_struct, exnmi); > -#ifdef CONFIG_PPC_PSERIES > - OFFSET(PACALPPACAPTR, paca_struct, lppaca_ptr); > -#endif > OFFSET(PACA_SLBSHADOWPTR, paca_struct, slb_shadow_ptr); > OFFSET(SLBSHADOW_STACKVSID, slb_shadow, save_area[SLB_NUM_BOLTED - 1].v= sid); > OFFSET(SLBSHADOW_STACKESID, slb_shadow, save_area[SLB_NUM_BOLTED - 1].e= sid); > @@ -264,9 +242,7 @@ int main(void) > #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE > OFFSET(PACA_PMCINUSE, paca_struct, pmcregs_in_use); > #endif > - OFFSET(LPPACA_DTLIDX, lppaca, dtl_idx); > OFFSET(LPPACA_YIELDCOUNT, lppaca, yield_count); > - OFFSET(PACA_DTL_RIDX, paca_struct, dtl_ridx); > #endif /* CONFIG_PPC_BOOK3S_64 */ > OFFSET(PACAEMERGSP, paca_struct, emergency_sp); > #ifdef CONFIG_PPC_BOOK3S_64 > --=20 > 2.25.0 >=20 >=20