From patchwork Tue Jan 26 20:57:22 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Borislav Petkov X-Patchwork-Id: 8127251 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id D212CBEEE5 for ; Tue, 26 Jan 2016 21:00:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3BE7D20253 for ; Tue, 26 Jan 2016 21:00:04 +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 D8897201F4 for ; Tue, 26 Jan 2016 21:00:02 +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 1aOAh3-0000hk-Ps; Tue, 26 Jan 2016 20:58:29 +0000 Received: from mail.skyhub.de ([2a01:4f8:120:8448::d00d]) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1aOAgf-0000WS-3z for linux-arm-kernel@lists.infradead.org; Tue, 26 Jan 2016 20:58:14 +0000 X-Virus-Scanned: Nedap ESD1 at mail.skyhub.de Received: from mail.skyhub.de ([127.0.0.1]) by localhost (door.skyhub.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id ULDQNlXmaWxo; Tue, 26 Jan 2016 21:57:41 +0100 (CET) Received: from pd.tnic (p200300454B150D000A606EFFFE5584DC.dip0.t-ipconnect.de [IPv6:2003:45:4b15:d00:a60:6eff:fe55:84dc]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.skyhub.de (SuperMail on ZX Spectrum 128k) with ESMTPSA id 5E9F0245AA0; Tue, 26 Jan 2016 21:57:37 +0100 (CET) Received: by pd.tnic (Postfix, from userid 1000) id 71D4F16182B; Tue, 26 Jan 2016 21:57:33 +0100 (CET) From: Borislav Petkov To: Ingo Molnar Subject: [PATCH 06/17] arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM Date: Tue, 26 Jan 2016 21:57:22 +0100 Message-Id: <1453841853-11383-7-git-send-email-bp@alien8.de> X-Mailer: git-send-email 2.3.5 In-Reply-To: <1453841853-11383-1-git-send-email-bp@alien8.de> References: <1453841853-11383-1-git-send-email-bp@alien8.de> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160126_125806_078255_7F373FA4 X-CRM114-Status: GOOD ( 15.39 ) X-Spam-Score: 0.6 (/) 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, linux-mips@linux-mips.org, linux-parisc@vger.kernel.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, LKML , linux-mm , sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.7 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, SUSPICIOUS_RECIPS, UNPARSEABLE_RELAY autolearn=no 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 From: Toshi Kani Set IORESOURCE_SYSTEM_RAM in flags of resource ranges with "System RAM", "Kernel code", "Kernel data", and "Kernel bss". Note that: - IORESOURCE_SYSRAM (i.e. modifier bit) is set in flags when IORESOURCE_MEM is already set. IORESOURCE_SYSTEM_RAM is defined as (IORESOURCE_MEM|IORESOURCE_SYSRAM). - Some archs do not set 'flags' for children nodes, such as "Kernel code". This patch does not change 'flags' in this case. Signed-off-by: Toshi Kani Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-mm Cc: linux-parisc@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/1452020081-26534-6-git-send-email-toshi.kani@hpe.com Signed-off-by: Borislav Petkov --- arch/arm/kernel/setup.c | 6 +++--- arch/arm64/kernel/setup.c | 6 +++--- arch/avr32/kernel/setup.c | 6 +++--- arch/m32r/kernel/setup.c | 4 ++-- arch/mips/kernel/setup.c | 10 ++++++---- arch/parisc/mm/init.c | 6 +++--- arch/powerpc/mm/mem.c | 2 +- arch/s390/kernel/setup.c | 8 ++++---- arch/score/kernel/setup.c | 2 +- arch/sh/kernel/setup.c | 8 ++++---- arch/sparc/mm/init_64.c | 8 ++++---- arch/tile/kernel/setup.c | 11 ++++++++--- arch/unicore32/kernel/setup.c | 6 +++--- 13 files changed, 45 insertions(+), 38 deletions(-) diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 7d0cba6f1cc5..139791ed473d 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -176,13 +176,13 @@ static struct resource mem_res[] = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM }, { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM } }; @@ -851,7 +851,7 @@ static void __init request_standard_resources(const struct machine_desc *mdesc) res->name = "System RAM"; res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region)); res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 8119479147db..450987d99b9b 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -73,13 +73,13 @@ static struct resource mem_res[] = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM }, { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM } }; @@ -210,7 +210,7 @@ static void __init request_standard_resources(void) res->name = "System RAM"; res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region)); res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c index 209ae5ad3495..e6928896da2a 100644 --- a/arch/avr32/kernel/setup.c +++ b/arch/avr32/kernel/setup.c @@ -49,13 +49,13 @@ static struct resource __initdata kernel_data = { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_MEM, + .flags = IORESOURCE_SYSTEM_RAM, }; static struct resource __initdata kernel_code = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_MEM, + .flags = IORESOURCE_SYSTEM_RAM, .sibling = &kernel_data, }; @@ -134,7 +134,7 @@ add_physical_memory(resource_size_t start, resource_size_t end) new->start = start; new->end = end; new->name = "System RAM"; - new->flags = IORESOURCE_MEM; + new->flags = IORESOURCE_SYSTEM_RAM; *pprev = new; } diff --git a/arch/m32r/kernel/setup.c b/arch/m32r/kernel/setup.c index a5ecef7188ba..136c69f1fb8a 100644 --- a/arch/m32r/kernel/setup.c +++ b/arch/m32r/kernel/setup.c @@ -70,14 +70,14 @@ static struct resource data_resource = { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; static struct resource code_resource = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; unsigned long memory_start; diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 569a7d5242dd..c745f0ea2577 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -732,21 +732,23 @@ static void __init resource_init(void) end = HIGHMEM_START - 1; res = alloc_bootmem(sizeof(struct resource)); + + res->start = start; + res->end = end; + res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + switch (boot_mem_map.map[i].type) { case BOOT_MEM_RAM: case BOOT_MEM_INIT_RAM: case BOOT_MEM_ROM_DATA: res->name = "System RAM"; + res->flags |= IORESOURCE_SYSRAM; break; case BOOT_MEM_RESERVED: default: res->name = "reserved"; } - res->start = start; - res->end = end; - - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); /* diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 1b366c477687..3c07d6b96877 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -55,12 +55,12 @@ signed char pfnnid_map[PFNNID_MAP_MAX] __read_mostly; static struct resource data_resource = { .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource code_resource = { .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource pdcdata_resource = { @@ -201,7 +201,7 @@ static void __init setup_bootmem(void) res->name = "System RAM"; res->start = pmem_ranges[i].start_pfn << PAGE_SHIFT; res->end = res->start + (pmem_ranges[i].pages << PAGE_SHIFT)-1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); } diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index 22d94c3e6fc4..e78a2b73aa5d 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -541,7 +541,7 @@ static int __init add_system_ram_resources(void) res->name = "System RAM"; res->start = base; res->end = base + size - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; WARN_ON(request_resource(&iomem_resource, res) < 0); } } diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index c6878fbbcf13..47dc0c011c6d 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -378,17 +378,17 @@ static void __init setup_lowcore(void) static struct resource code_resource = { .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource data_resource = { .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource bss_resource = { .name = "Kernel bss", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource __initdata *standard_resources[] = { @@ -412,7 +412,7 @@ static void __init setup_resources(void) for_each_memblock(memory, reg) { res = alloc_bootmem_low(sizeof(*res)); - res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; + res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM; res->name = "System RAM"; res->start = reg->base; diff --git a/arch/score/kernel/setup.c b/arch/score/kernel/setup.c index b48459afefdd..f3a0649ab521 100644 --- a/arch/score/kernel/setup.c +++ b/arch/score/kernel/setup.c @@ -101,7 +101,7 @@ static void __init resource_init(void) res->name = "System RAM"; res->start = MEMORY_START; res->end = MEMORY_START + MEMORY_SIZE - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); request_resource(res, &code_resource); diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c index de19cfa768f2..3f1c18b28e8a 100644 --- a/arch/sh/kernel/setup.c +++ b/arch/sh/kernel/setup.c @@ -78,17 +78,17 @@ static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, }; static struct resource code_resource = { .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource data_resource = { .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; static struct resource bss_resource = { .name = "Kernel bss", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM, + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM, }; unsigned long memory_start; @@ -202,7 +202,7 @@ void __init __add_active_range(unsigned int nid, unsigned long start_pfn, res->name = "System RAM"; res->start = start; res->end = end - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; if (request_resource(&iomem_resource, res)) { pr_err("unable to request memory_resource 0x%lx 0x%lx\n", diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c index 6f216853f272..1cfe6aab7a11 100644 --- a/arch/sparc/mm/init_64.c +++ b/arch/sparc/mm/init_64.c @@ -2863,17 +2863,17 @@ void hugetlb_setup(struct pt_regs *regs) static struct resource code_resource = { .name = "Kernel code", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; static struct resource data_resource = { .name = "Kernel data", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; static struct resource bss_resource = { .name = "Kernel bss", - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; static inline resource_size_t compute_kern_paddr(void *addr) @@ -2909,7 +2909,7 @@ static int __init report_memory(void) res->name = "System RAM"; res->start = pavail[i].phys_addr; res->end = pavail[i].phys_addr + pavail[i].reg_size - 1; - res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; + res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM; if (insert_resource(&iomem_resource, res) < 0) { pr_warn("Resource insertion failed.\n"); diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c index bbb855de6569..a992238e9b58 100644 --- a/arch/tile/kernel/setup.c +++ b/arch/tile/kernel/setup.c @@ -1632,14 +1632,14 @@ static struct resource data_resource = { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; static struct resource code_resource = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_BUSY | IORESOURCE_MEM + .flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM }; /* @@ -1673,10 +1673,15 @@ insert_ram_resource(u64 start_pfn, u64 end_pfn, bool reserved) kzalloc(sizeof(struct resource), GFP_ATOMIC); if (!res) return NULL; - res->name = reserved ? "Reserved" : "System RAM"; res->start = start_pfn << PAGE_SHIFT; res->end = (end_pfn << PAGE_SHIFT) - 1; res->flags = IORESOURCE_BUSY | IORESOURCE_MEM; + if (reserved) { + res->name = "Reserved"; + } else { + res->name = "System RAM"; + res->flags |= IORESOURCE_SYSRAM; + } if (insert_resource(&iomem_resource, res)) { kfree(res); return NULL; diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c index 3fa317f96122..c2bffa5614a4 100644 --- a/arch/unicore32/kernel/setup.c +++ b/arch/unicore32/kernel/setup.c @@ -72,13 +72,13 @@ static struct resource mem_res[] = { .name = "Kernel code", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM }, { .name = "Kernel data", .start = 0, .end = 0, - .flags = IORESOURCE_MEM + .flags = IORESOURCE_SYSTEM_RAM } }; @@ -211,7 +211,7 @@ request_standard_resources(struct meminfo *mi) res->name = "System RAM"; res->start = mi->bank[i].start; res->end = mi->bank[i].start + mi->bank[i].size - 1; - res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; request_resource(&iomem_resource, res);