x86: cache_info: Kill the atomic allocation in amd_init_l3_cache()
It's not a good reason to allocate memory in the smp function call
just because someone thought it's the most conveniant place.
The AMD L3 data is coupled to the northbridge info by a pointer to the
corresponding north bridge data. So allocating it with the northbridge
data and referencing the northbridge in the cache_info code instead
uses less memory and gets rid of that atomic allocation hack in the
smp function call.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Hans Rosenfeld <hans.rosenfeld@amd.com>
Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
Cc: Mike Travis <travis@sgi.com>
Link: http://lkml.kernel.org/r/20110723212626.688229918@linutronix.de
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 67f87f2..8e41071 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -19,9 +19,15 @@
extern int amd_get_subcaches(int);
extern int amd_set_subcaches(int, int);
+struct amd_l3_cache {
+ unsigned indices;
+ u8 subcaches[4];
+};
+
struct amd_northbridge {
struct pci_dev *misc;
struct pci_dev *link;
+ struct amd_l3_cache l3_cache;
};
struct amd_northbridge_info {