From patchwork Fri Mar 5 10:03:08 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Pei X-Patchwork-Id: 12118215 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80C2BC433DB for ; Fri, 5 Mar 2021 10:04:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5754C601FE for ; Fri, 5 Mar 2021 10:04:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229528AbhCEKDy (ORCPT ); Fri, 5 Mar 2021 05:03:54 -0500 Received: from mail.loongson.cn ([114.242.206.163]:44666 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229711AbhCEKDo (ORCPT ); Fri, 5 Mar 2021 05:03:44 -0500 Received: from localhost.localdomain (unknown [182.149.161.105]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9BxTeztAUJgzcoUAA--.6567S3; Fri, 05 Mar 2021 18:03:32 +0800 (CST) From: Huang Pei To: Thomas Bogendoerfer , ambrosehua@gmail.com Cc: Bibo Mao , Andrew Morton , linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Jiaxun Yang , Paul Burton , Li Xuefeng , Yang Tiezhu , Gao Juxin , Huacai Chen , Jinyang He Subject: [PATCH 1/3] MIPS: sync arrangement of pt_regs with user_pt_regs and regoffset_table Date: Fri, 5 Mar 2021 18:03:08 +0800 Message-Id: <20210305100310.26627-2-huangpei@loongson.cn> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210305100310.26627-1-huangpei@loongson.cn> References: <20210305100310.26627-1-huangpei@loongson.cn> X-CM-TRANSID: AQAAf9BxTeztAUJgzcoUAA--.6567S3 X-Coremail-Antispam: 1UD129KBjvJXoWxAF45ur4kKFWkGF43WFy5XFb_yoW5Ww47pF n8Ca1qga1Uuryjg345ZFyDWr98trnrJ3y2kanIyrWaqa4jv3Wagw4Iyr98Jr4jqrykt3WI gFySgrn8Ar4ayw7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPl14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jr4l82xGYIkIc2 x26xkF7I0E14v26r4j6ryUM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Cr0_Gr1UM2 8EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v26rxl6s0DM2AI xVAIcxkEcVAq07x20xvEncxIr21l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20x vE14v26r1j6r18McIj6I8E87Iv67AKxVWUJVW8JwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xv r2IYc2Ij64vIr41lF7I21c0EjII2zVCS5cI20VAGYxC7M4IIrI8v6xkF7I0E8cxan2IY04 v7MxkIecxEwVAFwVW8twCF04k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC2 0s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI 0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv2 0xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2js IE14v26r1j6r4UMIIF0xvEx4A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZF pf9x0JU4OJ5UUUUU= X-CM-SenderInfo: xkxd0whshlqz5rrqw2lrqou0/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Signed-off-by: Huang Pei --- arch/mips/include/asm/ptrace.h | 10 +++++----- arch/mips/kernel/asm-offsets.c | 6 +++--- arch/mips/kernel/ptrace.c | 10 +++++----- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h index 1e76774b36dd..e51691f2b7af 100644 --- a/arch/mips/include/asm/ptrace.h +++ b/arch/mips/include/asm/ptrace.h @@ -34,16 +34,16 @@ struct pt_regs { /* Saved main processor registers. */ unsigned long regs[32]; + unsigned long lo; + unsigned long hi; /* Saved special registers. */ + unsigned long cp0_epc; + unsigned long cp0_badvaddr; unsigned long cp0_status; - unsigned long hi; - unsigned long lo; + unsigned long cp0_cause; #ifdef CONFIG_CPU_HAS_SMARTMIPS unsigned long acx; #endif - unsigned long cp0_badvaddr; - unsigned long cp0_cause; - unsigned long cp0_epc; #ifdef CONFIG_CPU_CAVIUM_OCTEON unsigned long long mpl[6]; /* MTM{0-5} */ unsigned long long mtp[6]; /* MTP{0-5} */ diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c index aebfda81120a..8a9ab78bcc63 100644 --- a/arch/mips/kernel/asm-offsets.c +++ b/arch/mips/kernel/asm-offsets.c @@ -60,13 +60,13 @@ void output_ptreg_defines(void) OFFSET(PT_R31, pt_regs, regs[31]); OFFSET(PT_LO, pt_regs, lo); OFFSET(PT_HI, pt_regs, hi); -#ifdef CONFIG_CPU_HAS_SMARTMIPS - OFFSET(PT_ACX, pt_regs, acx); -#endif OFFSET(PT_EPC, pt_regs, cp0_epc); OFFSET(PT_BVADDR, pt_regs, cp0_badvaddr); OFFSET(PT_STATUS, pt_regs, cp0_status); OFFSET(PT_CAUSE, pt_regs, cp0_cause); +#ifdef CONFIG_CPU_HAS_SMARTMIPS + OFFSET(PT_ACX, pt_regs, acx); +#endif #ifdef CONFIG_CPU_CAVIUM_OCTEON OFFSET(PT_MPL, pt_regs, mpl); OFFSET(PT_MTP, pt_regs, mtp); diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c index db7c5be1d4a3..06ee1184fad3 100644 --- a/arch/mips/kernel/ptrace.c +++ b/arch/mips/kernel/ptrace.c @@ -886,15 +886,15 @@ static const struct pt_regs_offset regoffset_table[] = { REG_OFFSET_NAME(r29, regs[29]), REG_OFFSET_NAME(r30, regs[30]), REG_OFFSET_NAME(r31, regs[31]), - REG_OFFSET_NAME(c0_status, cp0_status), - REG_OFFSET_NAME(hi, hi), REG_OFFSET_NAME(lo, lo), + REG_OFFSET_NAME(hi, hi), + REG_OFFSET_NAME(c0_epc, cp0_epc), + REG_OFFSET_NAME(c0_badvaddr, cp0_badvaddr), + REG_OFFSET_NAME(c0_status, cp0_status), + REG_OFFSET_NAME(c0_cause, cp0_cause), #ifdef CONFIG_CPU_HAS_SMARTMIPS REG_OFFSET_NAME(acx, acx), #endif - REG_OFFSET_NAME(c0_badvaddr, cp0_badvaddr), - REG_OFFSET_NAME(c0_cause, cp0_cause), - REG_OFFSET_NAME(c0_epc, cp0_epc), #ifdef CONFIG_CPU_CAVIUM_OCTEON REG_OFFSET_NAME(mpl0, mpl[0]), REG_OFFSET_NAME(mpl1, mpl[1]), From patchwork Fri Mar 5 10:03:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Pei X-Patchwork-Id: 12118217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7D092C4332E for ; Fri, 5 Mar 2021 10:04:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53F0065017 for ; Fri, 5 Mar 2021 10:04:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229711AbhCEKDy (ORCPT ); Fri, 5 Mar 2021 05:03:54 -0500 Received: from mail.loongson.cn ([114.242.206.163]:44674 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229940AbhCEKDo (ORCPT ); Fri, 5 Mar 2021 05:03:44 -0500 Received: from localhost.localdomain (unknown [182.149.161.105]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9BxTeztAUJgzcoUAA--.6567S4; Fri, 05 Mar 2021 18:03:34 +0800 (CST) From: Huang Pei To: Thomas Bogendoerfer , ambrosehua@gmail.com Cc: Bibo Mao , Andrew Morton , linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Jiaxun Yang , Paul Burton , Li Xuefeng , Yang Tiezhu , Gao Juxin , Huacai Chen , Jinyang He Subject: [PATCH 2/3] MIPS: clean up CONFIG_MIPS_PGD_C0_CONTEXT handling Date: Fri, 5 Mar 2021 18:03:09 +0800 Message-Id: <20210305100310.26627-3-huangpei@loongson.cn> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210305100310.26627-1-huangpei@loongson.cn> References: <20210305100310.26627-1-huangpei@loongson.cn> X-CM-TRANSID: AQAAf9BxTeztAUJgzcoUAA--.6567S4 X-Coremail-Antispam: 1UD129KBjvJXoWxCF4ktw4DJFW3KFW8KFyxAFb_yoW5Gw1Up3 s7Z3WkGr4xur15uryYvFWkWr4rtasFya98ZF47Kr9I9FWjqrnY9w1xJrsIyF1DCF97Wa1x Wr4jgrW5Jrn29w7anT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPG14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_Jryl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2 xKxwCY02Avz4vE14v_Gw1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l x2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14 v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IY x2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87 Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIYCTnIWIevJa73UjIF yTuYvjfUOdgAUUUUU X-CM-SenderInfo: xkxd0whshlqz5rrqw2lrqou0/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org +. LOONGSON64 use 0x98xx_xxxx_xxxx_xxxx as xphys cached +. let CONFIG_MIPS_PGD_C0_CONTEXT depend on 64bit CP0 Context has enough room for wraping pgd into its 41-bit PTEBase field. +. For XPHYS, the trick is that pgd is 4kB aligned, and the PABITS <= 48, only save 48 - 12 + 5(for bit[63:59]) = 41 bits, aka. : bit[63:59] | 0000 0000 000 | bit[47:12] | 0000 0000 0000 +. for CKSEG0, only save 29 - 12 = 17 bits Signed-off-by: Huang Pei --- arch/mips/Kconfig | 3 ++- arch/mips/mm/tlbex.c | 18 +++++++++++++++--- 2 files changed, 17 insertions(+), 4 deletions(-) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 2000bb2b0220..5741dae35b74 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -2142,7 +2142,8 @@ config CPU_SUPPORTS_HUGEPAGES depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA)) config MIPS_PGD_C0_CONTEXT bool - default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP + depends on 64BIT + default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP # # Set to y for ptrace access to watch registers. diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index a7521b8f7658..7d89e016076e 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -848,8 +848,14 @@ void build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r, /* Clear lower 23 bits of context. */ uasm_i_dins(p, ptr, 0, 0, 23); - /* 1 0 1 0 1 << 6 xkphys cached */ + /* insert bit[63:59] of CAC_BASE into bit[11:6] of ptr */ +#ifdef CONFIG_CPU_LOONGSON64 + /* 0x98xx xxxx xxxx xxxx, bit[63:59]: 1 0 0 1 1 << 6, xphys cached */ + uasm_i_ori(p, ptr, ptr, 0x4c0); +#else + /* 0xa8xx xxxx xxxx xxxx, bit[63:59]: 1 0 1 0 1 << 6, xphys cached */ uasm_i_ori(p, ptr, ptr, 0x540); +#endif uasm_i_drotr(p, ptr, ptr, 11); #elif defined(CONFIG_SMP) UASM_i_CPUID_MFC0(p, ptr, SMP_CPUID_REG); @@ -1164,8 +1170,15 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l, if (pgd_reg == -1) { vmalloc_branch_delay_filled = 1; - /* 1 0 1 0 1 << 6 xkphys cached */ + /* insert bit[63:59] of CAC_BASE into bit[11:6] of ptr */ +#ifdef CONFIG_CPU_LOONGSON64 + /* 0x98xx xxxx xxxx xxxx, bit[63:59]: 1 0 0 1 1 << 6, xphys cached */ + uasm_i_ori(p, ptr, ptr, 0x4c0); +#else + /* 0xa8xx xxxx xxxx xxxx, bit[63:59]: 1 0 1 0 1 << 6, xphys cached */ uasm_i_ori(p, ptr, ptr, 0x540); +#endif + uasm_i_drotr(p, ptr, ptr, 11); } @@ -1292,7 +1305,6 @@ build_fast_tlb_refill_handler (u32 **p, struct uasm_label **l, return rv; } - /* * For a 64-bit kernel, we are using the 64-bit XTLB refill exception * because EXL == 0. If we wrap, we can also use the 32 instruction From patchwork Fri Mar 5 10:03:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Huang Pei X-Patchwork-Id: 12118219 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7695C432C3 for ; Fri, 5 Mar 2021 10:04:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CE1286502E for ; Fri, 5 Mar 2021 10:04:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229660AbhCEKDz (ORCPT ); Fri, 5 Mar 2021 05:03:55 -0500 Received: from mail.loongson.cn ([114.242.206.163]:44678 "EHLO loongson.cn" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229965AbhCEKDp (ORCPT ); Fri, 5 Mar 2021 05:03:45 -0500 Received: from localhost.localdomain (unknown [182.149.161.105]) by mail.loongson.cn (Coremail) with SMTP id AQAAf9BxTeztAUJgzcoUAA--.6567S5; Fri, 05 Mar 2021 18:03:35 +0800 (CST) From: Huang Pei To: Thomas Bogendoerfer , ambrosehua@gmail.com Cc: Bibo Mao , Andrew Morton , linux-mips@vger.kernel.org, linux-arch@vger.kernel.org, linux-mm@kvack.org, Jiaxun Yang , Paul Burton , Li Xuefeng , Yang Tiezhu , Gao Juxin , Huacai Chen , Jinyang He Subject: [PATCH 3/3] MIPS: loongson64: alloc pglist_data at run time Date: Fri, 5 Mar 2021 18:03:10 +0800 Message-Id: <20210305100310.26627-4-huangpei@loongson.cn> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210305100310.26627-1-huangpei@loongson.cn> References: <20210305100310.26627-1-huangpei@loongson.cn> X-CM-TRANSID: AQAAf9BxTeztAUJgzcoUAA--.6567S5 X-Coremail-Antispam: 1UD129KBjvJXoW7ArykCFy7WFy3Cr17GFy8Xwb_yoW8Cw1rpr y3C3Wrtay5twnI9FySqFW8ZrySyw18Ca1xtFW2gF9rZa4DWryIgF12kFy0g345tFWkZF1r Jr95tF1UWFs7XFUanT9S1TB71UUUUUUqnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUPC14x267AKxVWrJVCq3wAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2048vs2IY020E87I2jVAFwI0_JrWl82xGYIkIc2 x26xkF7I0E14v26ryj6s0DM28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48ve4kI8wA2z4x0 Y4vE2Ix0cI8IcVAFwI0_Xr0_Ar1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIE14v26rxl6s0DM28EF7xvwVC2z280aVCY1x0267AKxVW0oVCq3wAS 0I0E0xvYzxvE52x082IY62kv0487Mc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2 IY67AKxVWUJVWUGwAv7VC2z280aVAFwI0_Jr0_Gr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0 Y48IcxkI7VAKI48JM4x0x7Aq67IIx4CEVc8vx2IErcIFxwACI402YVCY1x02628vn2kIc2 xKxwCY02Avz4vE14v_Gw1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l x2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14 v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Jr0_JF4lIxAIcVC0I7IY x2IY6xkF7I0E14v26F4j6r4UJwCI42IY6xAIw20EY4v20xvaj40_Jr0_JF4lIxAIcVC2z2 80aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AKxVW8JVW8JrUvcSsGvfC2KfnxnUUI 43ZEXa7VUbpwZ7UUUUU== X-CM-SenderInfo: xkxd0whshlqz5rrqw2lrqou0/ Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org It can make some metadata of MM, like pglist_data and zone NUMA-aware Signed-off-by: Huang Pei --- arch/mips/loongson64/numa.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c index cf9459f79f9b..afafd367cb38 100644 --- a/arch/mips/loongson64/numa.c +++ b/arch/mips/loongson64/numa.c @@ -26,7 +26,6 @@ #include #include -static struct pglist_data prealloc__node_data[MAX_NUMNODES]; unsigned char __node_distances[MAX_NUMNODES][MAX_NUMNODES]; EXPORT_SYMBOL(__node_distances); struct pglist_data *__node_data[MAX_NUMNODES]; @@ -151,8 +150,12 @@ static void __init szmem(unsigned int node) static void __init node_mem_init(unsigned int node) { + struct pglist_data *nd; unsigned long node_addrspace_offset; unsigned long start_pfn, end_pfn; + unsigned long nd_pa; + int tnid; + const size_t nd_size = roundup(sizeof(pg_data_t), SMP_CACHE_BYTES); node_addrspace_offset = nid_to_addrbase(node); pr_info("Node%d's addrspace_offset is 0x%lx\n", @@ -162,8 +165,16 @@ static void __init node_mem_init(unsigned int node) pr_info("Node%d: start_pfn=0x%lx, end_pfn=0x%lx\n", node, start_pfn, end_pfn); - __node_data[node] = prealloc__node_data + node; - + nd_pa = memblock_phys_alloc_try_nid(nd_size, SMP_CACHE_BYTES, node); + if (!nd_pa) + panic("Cannot allocate %zu bytes for node %d data\n", + nd_size, node); + nd = __va(nd_pa); + memset(nd, 0, sizeof(struct pglist_data)); + tnid = early_pfn_to_nid(nd_pa >> PAGE_SHIFT); + if (tnid != node) + pr_info("NODE_DATA(%d) on node %d\n", node, tnid); + __node_data[node] = nd; NODE_DATA(node)->node_start_pfn = start_pfn; NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;