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authorJayachandran C <jchandra@broadcom.com>2013-12-21 16:52:26 +0530
committerRalf Baechle <ralf@linux-mips.org>2014-01-24 22:39:49 +0100
commit98d4884ca55883e8b16180bd969a8bccaa885c80 (patch)
treeca7424268b4ef49d1472895bf2bb50d57b38d4fe /arch/mips/include
parente7aa6c66b0acc34caba3af485f1a039bfa8aef07 (diff)
MIPS: Netlogic: Add cpu to node mapping for XLP9XX
XLP9XX has 20 cores per node, opposed to 8 on earlier XLP8XX. Update code that calculates node id from cpu id to handle this. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6283/
Diffstat (limited to 'arch/mips/include')
-rw-r--r--arch/mips/include/asm/mach-netlogic/multi-node.h11
-rw-r--r--arch/mips/include/asm/netlogic/mips-extns.h7
2 files changed, 15 insertions, 3 deletions
diff --git a/arch/mips/include/asm/mach-netlogic/multi-node.h b/arch/mips/include/asm/mach-netlogic/multi-node.h
index df9869d13afd..9ed8dacdc37c 100644
--- a/arch/mips/include/asm/mach-netlogic/multi-node.h
+++ b/arch/mips/include/asm/mach-netlogic/multi-node.h
@@ -47,9 +47,16 @@
#endif
#endif
-#define NLM_CORES_PER_NODE 8
#define NLM_THREADS_PER_CORE 4
-#define NLM_CPUS_PER_NODE (NLM_CORES_PER_NODE * NLM_THREADS_PER_CORE)
+#ifdef CONFIG_CPU_XLR
+#define nlm_cores_per_node() 8
+#else
+extern unsigned int xlp_cores_per_node;
+#define nlm_cores_per_node() xlp_cores_per_node
+#endif
+
+#define nlm_threads_per_node() (nlm_cores_per_node() * NLM_THREADS_PER_CORE)
+#define nlm_cpuid_to_node(c) ((c) / nlm_threads_per_node())
struct nlm_soc_info {
unsigned long coremask; /* cores enabled on the soc */
diff --git a/arch/mips/include/asm/netlogic/mips-extns.h b/arch/mips/include/asm/netlogic/mips-extns.h
index f299d31d7c1a..de9aada6f4c1 100644
--- a/arch/mips/include/asm/netlogic/mips-extns.h
+++ b/arch/mips/include/asm/netlogic/mips-extns.h
@@ -146,7 +146,12 @@ static inline int hard_smp_processor_id(void)
static inline int nlm_nodeid(void)
{
- return (__read_32bit_c0_register($15, 1) >> 5) & 0x3;
+ uint32_t prid = read_c0_prid();
+
+ if ((prid & 0xff00) == PRID_IMP_NETLOGIC_XLP9XX)
+ return (__read_32bit_c0_register($15, 1) >> 7) & 0x7;
+ else
+ return (__read_32bit_c0_register($15, 1) >> 5) & 0x3;
}
static inline unsigned int nlm_core_id(void)