From 35d98e93fe6a7ab612f6b389ce42c1dc135d6eef Mon Sep 17 00:00:00 2001 From: Toshi Kani Date: Tue, 26 Jan 2016 21:57:22 +0100 Subject: arch: Set IORESOURCE_SYSTEM_RAM flag for System RAM 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 Signed-off-by: Borislav Petkov Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Luis R. Rodriguez Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: 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: linux-s390@vger.kernel.org Cc: linux-sh@vger.kernel.org Cc: linuxppc-dev@lists.ozlabs.org Cc: sparclinux@vger.kernel.org Link: http://lkml.kernel.org/r/1453841853-11383-7-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar --- arch/tile/kernel/setup.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/tile') 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; -- cgit v1.2.3