From 86cfc751cb4d5da20904ae26c67fb6fd2a68a9c4 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 13 Feb 2008 22:01:57 -0800 Subject: [SPARC64]: Decrease SECTION_SIZE_BITS to 30. We'll need this to handle NUMA properly on some systems. Signed-off-by: David S. Miller --- include/asm-sparc64/sparsemem.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-sparc64/sparsemem.h b/include/asm-sparc64/sparsemem.h index 77bcd2bfa53c..b99d4e4b6d28 100644 --- a/include/asm-sparc64/sparsemem.h +++ b/include/asm-sparc64/sparsemem.h @@ -3,7 +3,7 @@ #ifdef __KERNEL__ -#define SECTION_SIZE_BITS 31 +#define SECTION_SIZE_BITS 30 #define MAX_PHYSADDR_BITS 42 #define MAX_PHYSMEM_BITS 42 -- cgit v1.2.2 From 30957a86c2442fb6d73aaa9a3153f023fe0a682b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 13 Feb 2008 22:07:34 -0800 Subject: [SPARC64]: Remove unused asm-sparc64/numnodes.h This is handled with config options now. Signed-off-by: David S. Miller --- include/asm-sparc64/numnodes.h | 6 ------ 1 file changed, 6 deletions(-) delete mode 100644 include/asm-sparc64/numnodes.h (limited to 'include') diff --git a/include/asm-sparc64/numnodes.h b/include/asm-sparc64/numnodes.h deleted file mode 100644 index 017e7e74f5e7..000000000000 --- a/include/asm-sparc64/numnodes.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifndef _SPARC64_NUMNODES_H -#define _SPARC64_NUMNODES_H - -#define NODES_SHIFT 0 - -#endif /* !(_SPARC64_NUMNODES_H) */ -- cgit v1.2.2 From c1b1a5f1f1b2612b69b67381b223bce9f8ec4da5 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 19 Mar 2008 04:52:48 -0700 Subject: [SPARC64]: NUMA device infrastructure. Record and propagate NUMA information for devices. Signed-off-by: David S. Miller --- include/asm-sparc/device.h | 2 ++ include/asm-sparc/prom.h | 5 +++++ include/asm-sparc64/iommu.h | 3 ++- 3 files changed, 9 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/asm-sparc/device.h b/include/asm-sparc/device.h index 680e51d87374..19790eb99cc6 100644 --- a/include/asm-sparc/device.h +++ b/include/asm-sparc/device.h @@ -16,6 +16,8 @@ struct dev_archdata { struct device_node *prom_node; struct of_device *op; + + int numa_node; }; #endif /* _ASM_SPARC_DEVICE_H */ diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h index df5dc4422483..fd55522481cd 100644 --- a/include/asm-sparc/prom.h +++ b/include/asm-sparc/prom.h @@ -77,6 +77,11 @@ extern int of_getintprop_default(struct device_node *np, const char *name, int def); extern int of_find_in_proplist(const char *list, const char *match, int len); +#ifdef CONFIG_NUMA +extern int of_node_to_nid(struct device_node *dp); +#else +#define of_node_to_nid(dp) (-1) +#endif extern void prom_build_devicetree(void); diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h index 46325ddee23b..d7b9afcba08b 100644 --- a/include/asm-sparc64/iommu.h +++ b/include/asm-sparc64/iommu.h @@ -56,6 +56,7 @@ struct strbuf { }; extern int iommu_table_init(struct iommu *iommu, int tsbsize, - u32 dma_offset, u32 dma_addr_mask); + u32 dma_offset, u32 dma_addr_mask, + int numa_node); #endif /* !(_SPARC64_IOMMU_H) */ -- cgit v1.2.2 From 919ee677b656c52c5f86d3d916786891220d5452 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 23 Apr 2008 05:40:25 -0700 Subject: [SPARC64]: Add NUMA support. Currently there is only code to parse NUMA attributes on sun4v/niagara systems, but later on we will add such parsing for older systems. Signed-off-by: David S. Miller --- include/asm-sparc64/mmzone.h | 17 ++++++++++ include/asm-sparc64/topology.h | 73 ++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 88 insertions(+), 2 deletions(-) create mode 100644 include/asm-sparc64/mmzone.h (limited to 'include') diff --git a/include/asm-sparc64/mmzone.h b/include/asm-sparc64/mmzone.h new file mode 100644 index 000000000000..ebf5986c12ed --- /dev/null +++ b/include/asm-sparc64/mmzone.h @@ -0,0 +1,17 @@ +#ifndef _SPARC64_MMZONE_H +#define _SPARC64_MMZONE_H + +#ifdef CONFIG_NEED_MULTIPLE_NODES + +extern struct pglist_data *node_data[]; + +#define NODE_DATA(nid) (node_data[nid]) +#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn) +#define node_end_pfn(nid) (NODE_DATA(nid)->node_end_pfn) + +extern int numa_cpu_lookup_table[]; +extern cpumask_t numa_cpumask_lookup_table[]; + +#endif /* CONFIG_NEED_MULTIPLE_NODES */ + +#endif /* _SPARC64_MMZONE_H */ diff --git a/include/asm-sparc64/topology.h b/include/asm-sparc64/topology.h index c6b557034f68..001c04027c82 100644 --- a/include/asm-sparc64/topology.h +++ b/include/asm-sparc64/topology.h @@ -1,6 +1,77 @@ #ifndef _ASM_SPARC64_TOPOLOGY_H #define _ASM_SPARC64_TOPOLOGY_H +#ifdef CONFIG_NUMA + +#include + +static inline int cpu_to_node(int cpu) +{ + return numa_cpu_lookup_table[cpu]; +} + +#define parent_node(node) (node) + +static inline cpumask_t node_to_cpumask(int node) +{ + return numa_cpumask_lookup_table[node]; +} + +/* Returns a pointer to the cpumask of CPUs on Node 'node'. */ +#define node_to_cpumask_ptr(v, node) \ + cpumask_t *v = &(numa_cpumask_lookup_table[node]) + +#define node_to_cpumask_ptr_next(v, node) \ + v = &(numa_cpumask_lookup_table[node]) + +static inline int node_to_first_cpu(int node) +{ + cpumask_t tmp; + tmp = node_to_cpumask(node); + return first_cpu(tmp); +} + +struct pci_bus; +#ifdef CONFIG_PCI +extern int pcibus_to_node(struct pci_bus *pbus); +#else +static inline int pcibus_to_node(struct pci_bus *pbus) +{ + return -1; +} +#endif + +#define pcibus_to_cpumask(bus) \ + (pcibus_to_node(bus) == -1 ? \ + CPU_MASK_ALL : \ + node_to_cpumask(pcibus_to_node(bus))) + +#define SD_NODE_INIT (struct sched_domain) { \ + .min_interval = 8, \ + .max_interval = 32, \ + .busy_factor = 32, \ + .imbalance_pct = 125, \ + .cache_nice_tries = 2, \ + .busy_idx = 3, \ + .idle_idx = 2, \ + .newidle_idx = 0, \ + .wake_idx = 1, \ + .forkexec_idx = 1, \ + .flags = SD_LOAD_BALANCE \ + | SD_BALANCE_FORK \ + | SD_BALANCE_EXEC \ + | SD_SERIALIZE \ + | SD_WAKE_BALANCE, \ + .last_balance = jiffies, \ + .balance_interval = 1, \ +} + +#else /* CONFIG_NUMA */ + +#include + +#endif /* !(CONFIG_NUMA) */ + #ifdef CONFIG_SMP #define topology_physical_package_id(cpu) (cpu_data(cpu).proc_id) #define topology_core_id(cpu) (cpu_data(cpu).core_id) @@ -10,8 +81,6 @@ #define smt_capable() (sparc64_multi_core) #endif /* CONFIG_SMP */ -#include - #define cpu_coregroup_map(cpu) (cpu_core_map[cpu]) #endif /* _ASM_SPARC64_TOPOLOGY_H */ -- cgit v1.2.2 From 8243e40acb087fcd9e7609333f0b0551391f49fc Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 23 Apr 2008 22:52:13 -0700 Subject: [SPARC64]: Store magic cookie and trap type in pt_regs. This sets us up for several simplifications and facilities: 1) The magic cookie lets us identify trap frames more accurately in stack backtraces. 2) The trap type lets us simplify all of the "are we in a syscall" state management and checks. 3) We can now see if a task off the cpu is sleeping in a system call or not. In fact, we can see what trap it is sleeping in whatever the type. The utrace guys will use this. Based upon some discussions with Roland McGrath. Signed-off-by: David S. Miller --- include/asm-sparc64/ptrace.h | 18 ++++++++++++++++-- 1 file changed, 16 insertions(+), 2 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/ptrace.h b/include/asm-sparc64/ptrace.h index 6da197803efc..b4b951d570bb 100644 --- a/include/asm-sparc64/ptrace.h +++ b/include/asm-sparc64/ptrace.h @@ -8,6 +8,8 @@ * stack during a system call and basically all traps. */ +#define PT_REGS_MAGIC 0x57ac6c00 + #ifndef __ASSEMBLY__ struct pt_regs { @@ -16,7 +18,19 @@ struct pt_regs { unsigned long tpc; unsigned long tnpc; unsigned int y; - unsigned int fprs; + + /* We encode a magic number, PT_REGS_MAGIC, along + * with the %tt (trap type) register value at trap + * entry time. The magic number allows us to identify + * accurately a trap stack frame in the stack + * unwinder, and the %tt value allows us to test + * things like "in a system call" etc. for an arbitray + * process. + * + * The PT_REGS_MAGIC is choosen such that it can be + * loaded completely using just a sethi instruction. + */ + unsigned int magic; }; struct pt_regs32 { @@ -147,7 +161,7 @@ extern void __show_regs(struct pt_regs *); #define PT_V9_TPC 0x88 #define PT_V9_TNPC 0x90 #define PT_V9_Y 0x98 -#define PT_V9_FPRS 0x9c +#define PT_V9_MAGIC 0x9c #define PT_TSTATE PT_V9_TSTATE #define PT_TPC PT_V9_TPC #define PT_TNPC PT_V9_TNPC -- cgit v1.2.2 From 7697daaa894ca2bc5cd652269c316bcdc3ec441b Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Thu, 24 Apr 2008 03:15:22 -0700 Subject: [SPARC64]: %l6 trap return handling no longer necessary. Now that we indicate the "restart system call" in the trap type field of pt_regs->magic, we don't need to set the %l6 boolean in all of the trap return paths. And we therefore don't need to pass it to do_notify_resume(). Signed-off-by: David S. Miller --- include/asm-sparc64/ttable.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'include') diff --git a/include/asm-sparc64/ttable.h b/include/asm-sparc64/ttable.h index 7208a777750e..d3cc4eff39a6 100644 --- a/include/asm-sparc64/ttable.h +++ b/include/asm-sparc64/ttable.h @@ -28,7 +28,7 @@ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ - clr %l6; \ + nop; \ nop; #define TRAP_7INSNS(routine) \ @@ -38,7 +38,7 @@ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ - clr %l6; + nop; #define TRAP_SAVEFPU(routine) \ sethi %hi(109f), %g7; \ @@ -47,7 +47,7 @@ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ - clr %l6; \ + nop; \ nop; #define TRAP_NOSAVE(routine) \ @@ -67,7 +67,7 @@ call routine; \ add %sp, PTREGS_OFF, %o0; \ ba,pt %xcc, rtrap; \ - clr %l6; \ + nop; \ nop; #define TRAP_ARG(routine, arg) \ @@ -78,7 +78,7 @@ call routine; \ mov arg, %o1; \ ba,pt %xcc, rtrap; \ - clr %l6; + nop; #define TRAPTL1_ARG(routine, arg) \ sethi %hi(109f), %g7; \ @@ -88,7 +88,7 @@ call routine; \ mov arg, %o1; \ ba,pt %xcc, rtrap; \ - clr %l6; + nop; #define SYSCALL_TRAP(routine, systbl) \ sethi %hi(109f), %g7; \ @@ -166,7 +166,7 @@ ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1; \ add %l1, 4, %l2; \ stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC]; \ - ba,pt %xcc, rtrap_clr_l6; \ + ba,pt %xcc, rtrap; \ stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC]; #ifdef CONFIG_KPROBES -- cgit v1.2.2