Merge branch 'x86/uv' of git://git.kernel.org/pub/scm/linux/kernel/gi…

…t/tip/linux-2.6-tip * 'x86/uv' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: UV BAU distribution and payload MMRs x86: UV: BAU partition-relative distribution map x86, uv: add Kconfig dependency on NUMA for UV systems x86: prevent /sys/firmware/sgi_uv from being created on non-uv systems x86, UV: Fix for nodes with memory and no cpus x86, UV: system table in bios accessed after unmap x86: UV BAU messaging timeouts x86: UV BAU and nodes with no memory
mariux64 · Apr 16, 2009 · 20d9207 · 20d9207
2 parents c19f836 + 4ea3c51
commit 20d9207
Show file tree

Hide file tree

Showing 6 changed files with 154 additions and 64 deletions.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
@@ -353,6 +353,7 @@ config X86_UV
 	bool "SGI Ultraviolet"
 	depends on X86_64
 	depends on X86_EXTENDED_PLATFORM
+	depends on NUMA
 	select X86_X2APIC
 	---help---
 	  This option is needed in order to support SGI Ultraviolet systems.

diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h
@@ -17,6 +17,11 @@
 /* ========================================================================= */
 /*                           UVH_BAU_DATA_CONFIG                             */
 /* ========================================================================= */
+#define UVH_LB_BAU_MISC_CONTROL 0x320170UL
+#define UV_ENABLE_INTD_SOFT_ACK_MODE_SHIFT 15
+#define UV_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHIFT 16
+#define UV_INTD_SOFT_ACK_TIMEOUT_PERIOD 0x000000000bUL
+/* 1011 timebase 7 (168millisec) * 3 ticks -> 500ms */
 #define UVH_BAU_DATA_CONFIG 0x61680UL
 #define UVH_BAU_DATA_CONFIG_32 0x0438
 

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -549,7 +549,8 @@ void __init uv_system_init(void)
 	unsigned long gnode_upper, lowmem_redir_base, lowmem_redir_size;
 	int bytes, nid, cpu, lcpu, pnode, blade, i, j, m_val, n_val;
 	int max_pnode = 0;
-	unsigned long mmr_base, present;
+	unsigned long mmr_base, present, paddr;
+	unsigned short pnode_mask;
 
 	map_low_mmrs();
 
@@ -592,6 +593,7 @@ void __init uv_system_init(void)
 		}
 	}
 
+	pnode_mask = (1 << n_val) - 1;
 	node_id.v = uv_read_local_mmr(UVH_NODE_ID);
 	gnode_upper = (((unsigned long)node_id.s.node_id) &
 		       ~((1 << n_val) - 1)) << m_val;
@@ -615,7 +617,7 @@ void __init uv_system_init(void)
 		uv_cpu_hub_info(cpu)->numa_blade_id = blade;
 		uv_cpu_hub_info(cpu)->blade_processor_id = lcpu;
 		uv_cpu_hub_info(cpu)->pnode = pnode;
-		uv_cpu_hub_info(cpu)->pnode_mask = (1 << n_val) - 1;
+		uv_cpu_hub_info(cpu)->pnode_mask = pnode_mask;
 		uv_cpu_hub_info(cpu)->gpa_mask = (1 << (m_val + n_val)) - 1;
 		uv_cpu_hub_info(cpu)->gnode_upper = gnode_upper;
 		uv_cpu_hub_info(cpu)->global_mmr_base = mmr_base;
@@ -631,6 +633,16 @@ void __init uv_system_init(void)
 			lcpu, blade);
 	}
 
+	/* Add blade/pnode info for nodes without cpus */
+	for_each_online_node(nid) {
+		if (uv_node_to_blade[nid] >= 0)
+			continue;
+		paddr = node_start_pfn(nid) << PAGE_SHIFT;
+		pnode = (paddr >> m_val) & pnode_mask;
+		blade = boot_pnode_to_blade(pnode);
+		uv_node_to_blade[nid] = blade;
+	}
+
 	map_gru_high(max_pnode);
 	map_mmr_high(max_pnode);
 	map_config_high(max_pnode);

diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c
@@ -182,7 +182,8 @@ void uv_bios_init(void)
 	memcpy(&uv_systab, tab, sizeof(struct uv_systab));
 	iounmap(tab);
 
-	printk(KERN_INFO "EFI UV System Table Revision %d\n", tab->revision);
+	printk(KERN_INFO "EFI UV System Table Revision %d\n",
+					uv_systab.revision);
 }
 #else	/* !CONFIG_EFI */