MIPS: Netlogic: Add macro for node present

Add macro nlm_node_present() that can be used to check if a node is present
in a multi-chip configuration. This can be used even when NUMA is not enabled.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/6272/

diff --git a/arch/mips/include/asm/mach-netlogic/multi-node.h b/arch/mips/include/asm/mach-netlogic/multi-node.h
index b3d91e0..beeb36b 100644 (file)
--- a/arch/mips/include/asm/mach-netlogic/multi-node.h
+++ b/arch/mips/include/asm/mach-netlogic/multi-node.h
@@ -63,6 +63,8 @@ struct nlm_soc_info {
 
 extern struct nlm_soc_info nlm_nodes[NLM_NR_NODES];
 #define nlm_get_node(i)                (&nlm_nodes[i])
+#define nlm_node_present(n)    ((n) >= 0 && (n) < NLM_NR_NODES && \
+                                       nlm_get_node(n)->coremask != 0)
 #ifdef CONFIG_CPU_XLR
 #define nlm_current_node()     (&nlm_nodes[0])
 #else

diff --git a/arch/mips/pci/pci-xlp.c b/arch/mips/pci/pci-xlp.c
index 222d804..da7a37a 100644 (file)
--- a/arch/mips/pci/pci-xlp.c
+++ b/arch/mips/pci/pci-xlp.c
@@ -235,7 +235,6 @@ static inline void xlp_config_pci_bswap(int node, int link) {}
 
 static int __init pcibios_init(void)
 {
-       struct nlm_soc_info *nodep;
        uint64_t pciebase;
        int link, n;
        u32 reg;
@@ -249,9 +248,8 @@ static int __init pcibios_init(void)
        ioport_resource.end   = ~0;
 
        for (n = 0; n < NLM_NR_NODES; n++) {
-               nodep = nlm_get_node(n);
-               if (!nodep->coremask)
-                       continue;       /* node does not exist */
+               if (!nlm_node_present(n))
+                       continue;
 
                for (link = 0; link < PCIE_NLINKS; link++) {
                        pciebase = nlm_get_pcie_base(n, link);