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authorToshi Kani <toshi.kani@hpe.com>2016-01-26 21:57:22 +0100
committerIngo Molnar <mingo@kernel.org>2016-01-30 09:49:57 +0100
commit35d98e93fe6a7ab612f6b389ce42c1dc135d6eef (patch)
treefe2d32527ed270c65c2137b3256818cdbc4b467b /arch/tile
parent03cb525eb25018cf5f3da01d0f1391fc8b37805a (diff)
downloadop-kernel-dev-35d98e93fe6a7ab612f6b389ce42c1dc135d6eef.zip
op-kernel-dev-35d98e93fe6a7ab612f6b389ce42c1dc135d6eef.tar.gz
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 <toshi.kani@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Luis R. Rodriguez <mcgrof@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Toshi Kani <toshi.kani@hp.com> Cc: linux-arch@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-mm <linux-mm@kvack.org> 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 <mingo@kernel.org>
Diffstat (limited to 'arch/tile')
-rw-r--r--arch/tile/kernel/setup.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/arch/tile/kernel/setup.c b/arch/tile/kernel/setup.c
index bbb855d..a992238 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;
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