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x86-32, NUMA: Update numaq to use new NUMA init protocol

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Update numaq such that it calls numa_add_memblk() and sets
numa_nodes_parsed instead of directly diddling with NUMA states.  The
original get_memcfg_numaq() is renamed to numaq_numa_init() and new
get_memcfg_numaq() is created in numa_32.c.

The shim numa_add_memblk() implementation handles node_start/end_pfn[]
and node_set_online() for nodes with memory.  The new
get_memcfg_numaq() exactly the same with get_memcfg_from_srat() other
than calling the numaq init function.  Things get_memcfgs_numaq() do
are not strictly necessary for numaq but added for consistency and to
help unifying NUMA init handling.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
This commit is contained in:
Tejun Heo 2011-05-02 14:18:53 +02:00
parent 5acd91ab83
commit 299a180aec
3 changed files with 34 additions and 24 deletions
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7
arch/x86/include/asm/numaq.h
View File

@ -29,7 +29,7 @@
#ifdef CONFIG_X86_NUMAQ
extern int found_numaq;
extern int get_memcfg_numaq(void);
extern int numaq_numa_init(void);
extern int pci_numaq_init(void);
extern void *xquad_portio;
@ -166,11 +166,6 @@ struct sys_cfg_data {
void numaq_tsc_disable(void);
#else
static inline int get_memcfg_numaq(void)
{
return 0;
}
#endif /* CONFIG_X86_NUMAQ */
#endif /* _ASM_X86_NUMAQ_H */

28
arch/x86/kernel/apic/numaq_32.c
View File

@ -48,8 +48,6 @@
#include <asm/e820.h>
#include <asm/ipi.h>
#define MB_TO_PAGES(addr) ((addr) << (20 - PAGE_SHIFT))
int found_numaq;
/*
@ -79,25 +77,20 @@ int quad_local_to_mp_bus_id[NR_CPUS/4][4];
static inline void numaq_register_node(int node, struct sys_cfg_data *scd)
{
struct eachquadmem *eq = scd->eq + node;
u64 start = (u64)(eq->hi_shrd_mem_start - eq->priv_mem_size) << 20;
u64 end = (u64)(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size) << 20;
int ret;
node_set_online(node);
/* Convert to pages */
node_start_pfn[node] =
MB_TO_PAGES(eq->hi_shrd_mem_start - eq->priv_mem_size);
node_end_pfn[node] =
MB_TO_PAGES(eq->hi_shrd_mem_start + eq->hi_shrd_mem_size);
memblock_x86_register_active_regions(node, node_start_pfn[node],
node_end_pfn[node]);
node_set(node, numa_nodes_parsed);
ret = numa_add_memblk(node, start, end);
BUG_ON(ret < 0);
}
/*
* Function: smp_dump_qct()
*
* Description: gets memory layout from the quad config table. This
* function also updates node_online_map with the nodes (quads) present.
* function also updates numa_nodes_parsed with the nodes (quads) present.
*/
static void __init smp_dump_qct(void)
{
@ -106,7 +99,6 @@ static void __init smp_dump_qct(void)
scd = (void *)__va(SYS_CFG_DATA_PRIV_ADDR);
nodes_clear(node_online_map);
for_each_node(node) {
if (scd->quads_present31_0 & (1 << node))
numaq_register_node(node, scd);
@ -276,14 +268,14 @@ static __init void early_check_numaq(void)
}
}
int __init get_memcfg_numaq(void)
int __init numaq_numa_init(void)
{
early_check_numaq();
if (!found_numaq)
return 0;
return -ENOENT;
smp_dump_qct();
return 1;
return 0;
}
#define NUMAQ_APIC_DFR_VALUE (APIC_DFR_CLUSTER)

23
arch/x86/mm/numa_32.c
View File

@ -332,6 +332,29 @@ static __init void init_alloc_remap(int nid)
nid, node_pa, node_pa + size, remap_va, remap_va + size);
}
static int get_memcfg_numaq(void)
{
#ifdef CONFIG_X86_NUMAQ
int nid;
if (numa_off)
return 0;
if (numaq_numa_init() < 0) {
nodes_clear(numa_nodes_parsed);
remove_all_active_ranges();
return 0;
}
for_each_node_mask(nid, numa_nodes_parsed)
node_set_online(nid);
sort_node_map();
return 1;
#else
return 0;
#endif
}
static int get_memcfg_from_srat(void)
{
#ifdef CONFIG_ACPI_NUMA