From patchwork Sat Jul 25 02:38:53 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dan Williams X-Patchwork-Id: 6864071 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 1B08D9F380 for ; Sat, 25 Jul 2015 02:49:01 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 051B7205FC for ; Sat, 25 Jul 2015 02:49:00 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 3A69F205ED for ; Sat, 25 Jul 2015 02:48:58 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZIpUJ-0003hC-I4; Sat, 25 Jul 2015 02:46:59 +0000 Received: from mga03.intel.com ([134.134.136.65]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ZIpSJ-0000cv-70 for linux-arm-kernel@lists.infradead.org; Sat, 25 Jul 2015 02:44:58 +0000 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga103.jf.intel.com with ESMTP; 24 Jul 2015 19:44:36 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.15,542,1432623600"; d="scan'208";a="612481923" Received: from dwillia2-desk3.jf.intel.com (HELO dwillia2-desk3.amr.corp.intel.com) ([10.54.39.11]) by orsmga003.jf.intel.com with ESMTP; 24 Jul 2015 19:44:36 -0700 Subject: [PATCH v2 10/25] x86: switch from ioremap_cache to memremap From: Dan Williams To: tglx@linutronix.de, mingo@kernel.org, hpa@zytor.com Date: Fri, 24 Jul 2015 22:38:53 -0400 Message-ID: <20150725023853.8664.23118.stgit@dwillia2-desk3.amr.corp.intel.com> In-Reply-To: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> References: <20150725023649.8664.59145.stgit@dwillia2-desk3.amr.corp.intel.com> User-Agent: StGit/0.17.1-8-g92dd MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20150724_194455_377819_2C39B82F X-CRM114-Status: GOOD ( 15.19 ) X-Spam-Score: -8.1 (--------) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, toshi.kani@hp.com, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org, Ingo Molnar , Borislav Petkov , rmk+kernel@arm.linux.org.uk, hch@lst.de, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-5.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP In preparation for deprecating ioremap_cache() convert its usage in arch/x86/ to memremap. Cc: Thomas Gleixner Cc: H. Peter Anvin Cc: Ingo Molnar Cc: Borislav Petkov Signed-off-by: Dan Williams --- arch/x86/include/asm/efi.h | 3 ++- arch/x86/kernel/crash_dump_64.c | 6 +++--- arch/x86/kernel/kdebugfs.c | 8 ++++---- arch/x86/kernel/ksysfs.c | 28 ++++++++++++++-------------- arch/x86/mm/ioremap.c | 10 ++++------ 5 files changed, 27 insertions(+), 28 deletions(-) diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index 155162ea0e00..755272a8c45f 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -54,7 +54,8 @@ extern unsigned long asmlinkage efi_call_phys(void *, ...); kernel_fpu_end(); \ }) -#define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size) +#define efi_ioremap(addr, size, type, attr) \ + memremap(addr, size, MEMREMAP_CACHE) #else /* !CONFIG_X86_32 */ diff --git a/arch/x86/kernel/crash_dump_64.c b/arch/x86/kernel/crash_dump_64.c index afa64adb75ee..b87ca059e5fc 100644 --- a/arch/x86/kernel/crash_dump_64.c +++ b/arch/x86/kernel/crash_dump_64.c @@ -31,19 +31,19 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf, if (!csize) return 0; - vaddr = ioremap_cache(pfn << PAGE_SHIFT, PAGE_SIZE); + vaddr = memremap(pfn << PAGE_SHIFT, PAGE_SIZE, MEMREMAP_CACHE); if (!vaddr) return -ENOMEM; if (userbuf) { if (copy_to_user(buf, vaddr + offset, csize)) { - iounmap(vaddr); + memunmap(vaddr); return -EFAULT; } } else memcpy(buf, vaddr + offset, csize); set_iounmap_nonlazy(); - iounmap(vaddr); + memunmap(vaddr); return csize; } diff --git a/arch/x86/kernel/kdebugfs.c b/arch/x86/kernel/kdebugfs.c index dc1404bf8e4b..a2248482c14b 100644 --- a/arch/x86/kernel/kdebugfs.c +++ b/arch/x86/kernel/kdebugfs.c @@ -49,7 +49,7 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf, pa = node->paddr + sizeof(struct setup_data) + pos; pg = pfn_to_page((pa + count - 1) >> PAGE_SHIFT); if (PageHighMem(pg)) { - p = ioremap_cache(pa, count); + p = memremap(pa, count, MEMREMAP_CACHE); if (!p) return -ENXIO; } else @@ -58,7 +58,7 @@ static ssize_t setup_data_read(struct file *file, char __user *user_buf, remain = copy_to_user(user_buf, p, count); if (PageHighMem(pg)) - iounmap(p); + memunmap(p); if (remain) return -EFAULT; @@ -128,7 +128,7 @@ static int __init create_setup_data_nodes(struct dentry *parent) pg = pfn_to_page((pa_data+sizeof(*data)-1) >> PAGE_SHIFT); if (PageHighMem(pg)) { - data = ioremap_cache(pa_data, sizeof(*data)); + data = memremap(pa_data, sizeof(*data), MEMREMAP_CACHE); if (!data) { kfree(node); error = -ENXIO; @@ -144,7 +144,7 @@ static int __init create_setup_data_nodes(struct dentry *parent) pa_data = data->next; if (PageHighMem(pg)) - iounmap(data); + memunmap(data); if (error) goto err_dir; no++; diff --git a/arch/x86/kernel/ksysfs.c b/arch/x86/kernel/ksysfs.c index c2bedaea11f7..d2670bb75a08 100644 --- a/arch/x86/kernel/ksysfs.c +++ b/arch/x86/kernel/ksysfs.c @@ -16,8 +16,8 @@ #include #include #include +#include -#include #include static ssize_t version_show(struct kobject *kobj, @@ -79,12 +79,12 @@ static int get_setup_data_paddr(int nr, u64 *paddr) *paddr = pa_data; return 0; } - data = ioremap_cache(pa_data, sizeof(*data)); + data = memremap(pa_data, sizeof(*data), MEMREMAP_CACHE); if (!data) return -ENOMEM; pa_data = data->next; - iounmap(data); + memunmap(data); i++; } return -EINVAL; @@ -97,17 +97,17 @@ static int __init get_setup_data_size(int nr, size_t *size) u64 pa_data = boot_params.hdr.setup_data; while (pa_data) { - data = ioremap_cache(pa_data, sizeof(*data)); + data = memremap(pa_data, sizeof(*data), MEMREMAP_CACHE); if (!data) return -ENOMEM; if (nr == i) { *size = data->len; - iounmap(data); + memunmap(data); return 0; } pa_data = data->next; - iounmap(data); + memunmap(data); i++; } return -EINVAL; @@ -127,12 +127,12 @@ static ssize_t type_show(struct kobject *kobj, ret = get_setup_data_paddr(nr, &paddr); if (ret) return ret; - data = ioremap_cache(paddr, sizeof(*data)); + data = memremap(paddr, sizeof(*data), MEMREMAP_CACHE); if (!data) return -ENOMEM; ret = sprintf(buf, "0x%x\n", data->type); - iounmap(data); + memunmap(data); return ret; } @@ -154,7 +154,7 @@ static ssize_t setup_data_data_read(struct file *fp, ret = get_setup_data_paddr(nr, &paddr); if (ret) return ret; - data = ioremap_cache(paddr, sizeof(*data)); + data = memremap(paddr, sizeof(*data), MEMREMAP_CACHE); if (!data) return -ENOMEM; @@ -170,15 +170,15 @@ static ssize_t setup_data_data_read(struct file *fp, goto out; ret = count; - p = ioremap_cache(paddr + sizeof(*data), data->len); + p = memremap(paddr + sizeof(*data), data->len, MEMREMAP_CACHE); if (!p) { ret = -ENOMEM; goto out; } memcpy(buf, p + off, count); - iounmap(p); + memunmap(p); out: - iounmap(data); + memunmap(data); return ret; } @@ -250,13 +250,13 @@ static int __init get_setup_data_total_num(u64 pa_data, int *nr) *nr = 0; while (pa_data) { *nr += 1; - data = ioremap_cache(pa_data, sizeof(*data)); + data = memremap(pa_data, sizeof(*data), MEMREMAP_CACHE); if (!data) { ret = -ENOMEM; goto out; } pa_data = data->next; - iounmap(data); + memunmap(data); } out: diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 12b1eaeab6b9..6f759c7c2ab7 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -403,12 +403,10 @@ void *xlate_dev_mem_ptr(phys_addr_t phys) if (page_is_ram(start >> PAGE_SHIFT)) return __va(phys); - vaddr = ioremap_cache(start, PAGE_SIZE); - /* Only add the offset on success and return NULL if the ioremap() failed: */ + vaddr = memremap(start, PAGE_SIZE, MEMREMAP_CACHE); if (vaddr) - vaddr += offset; - - return vaddr; + return vaddr + offset; + return NULL; } void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) @@ -416,7 +414,7 @@ void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr) if (page_is_ram(phys >> PAGE_SHIFT)) return; - iounmap((void __iomem *)((unsigned long)addr & PAGE_MASK)); + memunmap((void *)((unsigned long)addr & PAGE_MASK)); } static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss;