[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 <davem@davemloft.net>
This commit is contained in:
David S. Miller
Родитель
1f261ef53b
Коммит
919ee677b6
2
Makefile
2
Makefile
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@ -1,7 +1,7 @@
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VERSION = 2
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PATCHLEVEL = 6
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SUBLEVEL = 25
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EXTRAVERSION =
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EXTRAVERSION = -numa
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NAME = Funky Weasel is Jiggy wit it
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# *DOCUMENTATION*
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@ -250,6 +250,26 @@ endchoice
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endmenu
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config NUMA
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bool "NUMA support"
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config NODES_SHIFT
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int
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default "4"
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depends on NEED_MULTIPLE_NODES
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# Some NUMA nodes have memory ranges that span
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# other nodes. Even though a pfn is valid and
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# between a node's start and end pfns, it may not
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# reside on that node. See memmap_init_zone()
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# for details.
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config NODES_SPAN_OTHER_NODES
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def_bool y
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depends on NEED_MULTIPLE_NODES
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config ARCH_POPULATES_NODE_MAP
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def_bool y
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config ARCH_SELECT_MEMORY_MODEL
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def_bool y
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@ -1,7 +1,7 @@
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#
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# Automatically generated make config: don't edit
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# Linux kernel version: 2.6.25
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# Sun Apr 20 01:33:21 2008
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# Linux kernel version: 2.6.25-numa
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# Wed Apr 23 04:49:08 2008
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#
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CONFIG_SPARC=y
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CONFIG_SPARC64=y
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@ -152,6 +152,8 @@ CONFIG_GENERIC_CALIBRATE_DELAY=y
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CONFIG_HUGETLB_PAGE_SIZE_4MB=y
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# CONFIG_HUGETLB_PAGE_SIZE_512K is not set
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# CONFIG_HUGETLB_PAGE_SIZE_64K is not set
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# CONFIG_NUMA is not set
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CONFIG_ARCH_POPULATES_NODE_MAP=y
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CONFIG_ARCH_SELECT_MEMORY_MODEL=y
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CONFIG_ARCH_SPARSEMEM_ENABLE=y
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CONFIG_ARCH_SPARSEMEM_DEFAULT=y
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@ -787,7 +789,6 @@ CONFIG_I2C_ALGOBIT=y
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# CONFIG_SENSORS_PCF8574 is not set
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# CONFIG_PCF8575 is not set
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# CONFIG_SENSORS_PCF8591 is not set
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# CONFIG_TPS65010 is not set
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# CONFIG_SENSORS_MAX6875 is not set
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# CONFIG_SENSORS_TSL2550 is not set
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# CONFIG_I2C_DEBUG_CORE is not set
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@ -869,6 +870,7 @@ CONFIG_SSB_POSSIBLE=y
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# Multifunction device drivers
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#
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# CONFIG_MFD_SM501 is not set
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# CONFIG_HTC_PASIC3 is not set
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#
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# Multimedia devices
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@ -1219,10 +1221,6 @@ CONFIG_USB_STORAGE=m
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# CONFIG_NEW_LEDS is not set
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# CONFIG_INFINIBAND is not set
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# CONFIG_RTC_CLASS is not set
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#
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# Userspace I/O
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#
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# CONFIG_UIO is not set
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#
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@ -1399,6 +1397,7 @@ CONFIG_SCHEDSTATS=y
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CONFIG_DEBUG_BUGVERBOSE=y
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# CONFIG_DEBUG_INFO is not set
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# CONFIG_DEBUG_VM is not set
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# CONFIG_DEBUG_WRITECOUNT is not set
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# CONFIG_DEBUG_LIST is not set
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# CONFIG_DEBUG_SG is not set
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# CONFIG_BOOT_PRINTK_DELAY is not set
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@ -1425,53 +1424,82 @@ CONFIG_ASYNC_CORE=m
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CONFIG_ASYNC_MEMCPY=m
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CONFIG_ASYNC_XOR=m
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CONFIG_CRYPTO=y
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#
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# Crypto core or helper
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#
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CONFIG_CRYPTO_ALGAPI=y
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CONFIG_CRYPTO_AEAD=y
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CONFIG_CRYPTO_BLKCIPHER=y
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# CONFIG_CRYPTO_SEQIV is not set
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CONFIG_CRYPTO_HASH=y
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CONFIG_CRYPTO_MANAGER=y
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CONFIG_CRYPTO_GF128MUL=m
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CONFIG_CRYPTO_NULL=m
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# CONFIG_CRYPTO_CRYPTD is not set
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CONFIG_CRYPTO_AUTHENC=y
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CONFIG_CRYPTO_TEST=m
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#
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# Authenticated Encryption with Associated Data
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#
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# CONFIG_CRYPTO_CCM is not set
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# CONFIG_CRYPTO_GCM is not set
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# CONFIG_CRYPTO_SEQIV is not set
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#
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# Block modes
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#
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CONFIG_CRYPTO_CBC=y
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# CONFIG_CRYPTO_CTR is not set
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# CONFIG_CRYPTO_CTS is not set
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CONFIG_CRYPTO_ECB=m
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CONFIG_CRYPTO_LRW=m
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CONFIG_CRYPTO_PCBC=m
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CONFIG_CRYPTO_XTS=m
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#
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# Hash modes
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#
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CONFIG_CRYPTO_HMAC=y
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CONFIG_CRYPTO_XCBC=y
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CONFIG_CRYPTO_NULL=m
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#
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# Digest
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#
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CONFIG_CRYPTO_CRC32C=m
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CONFIG_CRYPTO_MD4=y
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CONFIG_CRYPTO_MD5=y
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CONFIG_CRYPTO_MICHAEL_MIC=m
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CONFIG_CRYPTO_SHA1=y
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CONFIG_CRYPTO_SHA256=m
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CONFIG_CRYPTO_SHA512=m
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CONFIG_CRYPTO_WP512=m
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CONFIG_CRYPTO_TGR192=m
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CONFIG_CRYPTO_GF128MUL=m
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CONFIG_CRYPTO_ECB=m
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CONFIG_CRYPTO_CBC=y
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CONFIG_CRYPTO_PCBC=m
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CONFIG_CRYPTO_LRW=m
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CONFIG_CRYPTO_XTS=m
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# CONFIG_CRYPTO_CTR is not set
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# CONFIG_CRYPTO_GCM is not set
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# CONFIG_CRYPTO_CCM is not set
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# CONFIG_CRYPTO_CRYPTD is not set
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CONFIG_CRYPTO_DES=y
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CONFIG_CRYPTO_FCRYPT=m
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CONFIG_CRYPTO_BLOWFISH=m
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CONFIG_CRYPTO_TWOFISH=m
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CONFIG_CRYPTO_TWOFISH_COMMON=m
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CONFIG_CRYPTO_SERPENT=m
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CONFIG_CRYPTO_WP512=m
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#
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# Ciphers
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#
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CONFIG_CRYPTO_AES=m
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CONFIG_CRYPTO_ANUBIS=m
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CONFIG_CRYPTO_ARC4=m
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CONFIG_CRYPTO_BLOWFISH=m
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CONFIG_CRYPTO_CAMELLIA=m
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CONFIG_CRYPTO_CAST5=m
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CONFIG_CRYPTO_CAST6=m
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CONFIG_CRYPTO_TEA=m
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CONFIG_CRYPTO_ARC4=m
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CONFIG_CRYPTO_DES=y
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CONFIG_CRYPTO_FCRYPT=m
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CONFIG_CRYPTO_KHAZAD=m
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CONFIG_CRYPTO_ANUBIS=m
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CONFIG_CRYPTO_SEED=m
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# CONFIG_CRYPTO_SALSA20 is not set
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CONFIG_CRYPTO_SEED=m
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CONFIG_CRYPTO_SERPENT=m
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CONFIG_CRYPTO_TEA=m
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CONFIG_CRYPTO_TWOFISH=m
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CONFIG_CRYPTO_TWOFISH_COMMON=m
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#
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# Compression
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#
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CONFIG_CRYPTO_DEFLATE=y
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CONFIG_CRYPTO_MICHAEL_MIC=m
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CONFIG_CRYPTO_CRC32C=m
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CONFIG_CRYPTO_CAMELLIA=m
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CONFIG_CRYPTO_TEST=m
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CONFIG_CRYPTO_AUTHENC=y
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# CONFIG_CRYPTO_LZO is not set
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CONFIG_CRYPTO_HW=y
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# CONFIG_CRYPTO_DEV_HIFN_795X is not set
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@ -1492,3 +1520,4 @@ CONFIG_PLIST=y
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CONFIG_HAS_IOMEM=y
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CONFIG_HAS_IOPORT=y
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CONFIG_HAS_DMA=y
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CONFIG_HAVE_LMB=y
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@ -273,10 +273,22 @@ static void __init check_mmu_stats(void)
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mmu_stats_supported = 1;
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}
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static void register_nodes(void)
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{
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#ifdef CONFIG_NUMA
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int i;
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for (i = 0; i < MAX_NUMNODES; i++)
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register_one_node(i);
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#endif
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}
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static int __init topology_init(void)
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{
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int cpu;
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register_nodes();
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check_mmu_stats();
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register_cpu_notifier(&sysfs_cpu_nb);
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@ -25,6 +25,7 @@
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#include <linux/sort.h>
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#include <linux/percpu.h>
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#include <linux/lmb.h>
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#include <linux/mmzone.h>
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#include <asm/head.h>
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#include <asm/system.h>
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@ -73,9 +74,7 @@ extern struct tsb swapper_4m_tsb[KERNEL_TSB4M_NENTRIES];
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#define MAX_BANKS 32
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static struct linux_prom64_registers pavail[MAX_BANKS] __initdata;
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static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata;
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static int pavail_ents __initdata;
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static int pavail_rescan_ents __initdata;
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static int cmp_p64(const void *a, const void *b)
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{
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@ -716,19 +715,28 @@ out:
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smp_new_mmu_context_version();
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}
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/* Find a free area for the bootmem map, avoiding the kernel image
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* and the initial ramdisk.
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*/
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static unsigned long __init choose_bootmap_pfn(unsigned long start_pfn,
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unsigned long end_pfn)
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static int numa_enabled = 1;
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static int numa_debug;
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static int __init early_numa(char *p)
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{
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unsigned long bootmap_size;
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if (!p)
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return 0;
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bootmap_size = bootmem_bootmap_pages(end_pfn - start_pfn);
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bootmap_size <<= PAGE_SHIFT;
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if (strstr(p, "off"))
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numa_enabled = 0;
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return lmb_alloc(bootmap_size, PAGE_SIZE) >> PAGE_SHIFT;
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if (strstr(p, "debug"))
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numa_debug = 1;
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return 0;
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}
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early_param("numa", early_numa);
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#define numadbg(f, a...) \
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do { if (numa_debug) \
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printk(KERN_INFO f, ## a); \
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} while (0)
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static void __init find_ramdisk(unsigned long phys_base)
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{
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@ -755,6 +763,9 @@ static void __init find_ramdisk(unsigned long phys_base)
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ramdisk_image -= KERNBASE;
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ramdisk_image += phys_base;
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numadbg("Found ramdisk at physical address 0x%lx, size %u\n",
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ramdisk_image, sparc_ramdisk_size);
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initrd_start = ramdisk_image;
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initrd_end = ramdisk_image + sparc_ramdisk_size;
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@ -763,60 +774,625 @@ static void __init find_ramdisk(unsigned long phys_base)
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#endif
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}
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/* About pages_avail, this is the value we will use to calculate
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* the zholes_size[] argument given to free_area_init_node(). The
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* page allocator uses this to calculate nr_kernel_pages,
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* nr_all_pages and zone->present_pages. On NUMA it is used
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* to calculate zone->min_unmapped_pages and zone->min_slab_pages.
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*
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* So this number should really be set to what the page allocator
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* actually ends up with. This means:
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* 1) It should include bootmem map pages, we'll release those.
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* 2) It should not include the kernel image, except for the
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* __init sections which we will also release.
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* 3) It should include the initrd image, since we'll release
|
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* that too.
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*/
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static unsigned long __init bootmem_init(unsigned long *pages_avail,
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unsigned long phys_base)
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struct node_mem_mask {
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unsigned long mask;
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unsigned long val;
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unsigned long bootmem_paddr;
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};
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static struct node_mem_mask node_masks[MAX_NUMNODES];
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static int num_node_masks;
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int numa_cpu_lookup_table[NR_CPUS];
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cpumask_t numa_cpumask_lookup_table[MAX_NUMNODES];
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#ifdef CONFIG_NEED_MULTIPLE_NODES
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static bootmem_data_t plat_node_bdata[MAX_NUMNODES];
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struct mdesc_mblock {
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u64 base;
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u64 size;
|
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u64 offset; /* RA-to-PA */
|
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};
|
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static struct mdesc_mblock *mblocks;
|
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static int num_mblocks;
|
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|
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static unsigned long ra_to_pa(unsigned long addr)
|
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{
|
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unsigned long end_pfn;
|
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int i;
|
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|
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*pages_avail = lmb_phys_mem_size() >> PAGE_SHIFT;
|
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end_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;
|
||||
for (i = 0; i < num_mblocks; i++) {
|
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struct mdesc_mblock *m = &mblocks[i];
|
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|
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/* Initialize the boot-time allocator. */
|
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if (addr >= m->base &&
|
||||
addr < (m->base + m->size)) {
|
||||
addr += m->offset;
|
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break;
|
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}
|
||||
}
|
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return addr;
|
||||
}
|
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|
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static int find_node(unsigned long addr)
|
||||
{
|
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int i;
|
||||
|
||||
addr = ra_to_pa(addr);
|
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for (i = 0; i < num_node_masks; i++) {
|
||||
struct node_mem_mask *p = &node_masks[i];
|
||||
|
||||
if ((addr & p->mask) == p->val)
|
||||
return i;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
static unsigned long nid_range(unsigned long start, unsigned long end,
|
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int *nid)
|
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{
|
||||
*nid = find_node(start);
|
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start += PAGE_SIZE;
|
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while (start < end) {
|
||||
int n = find_node(start);
|
||||
|
||||
if (n != *nid)
|
||||
break;
|
||||
start += PAGE_SIZE;
|
||||
}
|
||||
|
||||
return start;
|
||||
}
|
||||
#else
|
||||
static unsigned long nid_range(unsigned long start, unsigned long end,
|
||||
int *nid)
|
||||
{
|
||||
*nid = 0;
|
||||
return end;
|
||||
}
|
||||
#endif
|
||||
|
||||
/* This must be invoked after performing all of the necessary
|
||||
* add_active_range() calls for 'nid'. We need to be able to get
|
||||
* correct data from get_pfn_range_for_nid().
|
||||
*/
|
||||
static void __init allocate_node_data(int nid)
|
||||
{
|
||||
unsigned long paddr, num_pages, start_pfn, end_pfn;
|
||||
struct pglist_data *p;
|
||||
|
||||
#ifdef CONFIG_NEED_MULTIPLE_NODES
|
||||
paddr = lmb_alloc_nid(sizeof(struct pglist_data),
|
||||
SMP_CACHE_BYTES, nid, nid_range);
|
||||
if (!paddr) {
|
||||
prom_printf("Cannot allocate pglist_data for nid[%d]\n", nid);
|
||||
prom_halt();
|
||||
}
|
||||
NODE_DATA(nid) = __va(paddr);
|
||||
memset(NODE_DATA(nid), 0, sizeof(struct pglist_data));
|
||||
|
||||
NODE_DATA(nid)->bdata = &plat_node_bdata[nid];
|
||||
#endif
|
||||
|
||||
p = NODE_DATA(nid);
|
||||
|
||||
get_pfn_range_for_nid(nid, &start_pfn, &end_pfn);
|
||||
p->node_start_pfn = start_pfn;
|
||||
p->node_spanned_pages = end_pfn - start_pfn;
|
||||
|
||||
if (p->node_spanned_pages) {
|
||||
num_pages = bootmem_bootmap_pages(p->node_spanned_pages);
|
||||
|
||||
paddr = lmb_alloc_nid(num_pages << PAGE_SHIFT, PAGE_SIZE, nid,
|
||||
nid_range);
|
||||
if (!paddr) {
|
||||
prom_printf("Cannot allocate bootmap for nid[%d]\n",
|
||||
nid);
|
||||
prom_halt();
|
||||
}
|
||||
node_masks[nid].bootmem_paddr = paddr;
|
||||
}
|
||||
}
|
||||
|
||||
static void init_node_masks_nonnuma(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
numadbg("Initializing tables for non-numa.\n");
|
||||
|
||||
node_masks[0].mask = node_masks[0].val = 0;
|
||||
num_node_masks = 1;
|
||||
|
||||
for (i = 0; i < NR_CPUS; i++)
|
||||
numa_cpu_lookup_table[i] = 0;
|
||||
|
||||
numa_cpumask_lookup_table[0] = CPU_MASK_ALL;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_NEED_MULTIPLE_NODES
|
||||
struct pglist_data *node_data[MAX_NUMNODES];
|
||||
|
||||
EXPORT_SYMBOL(numa_cpu_lookup_table);
|
||||
EXPORT_SYMBOL(numa_cpumask_lookup_table);
|
||||
EXPORT_SYMBOL(node_data);
|
||||
|
||||
struct mdesc_mlgroup {
|
||||
u64 node;
|
||||
u64 latency;
|
||||
u64 match;
|
||||
u64 mask;
|
||||
};
|
||||
static struct mdesc_mlgroup *mlgroups;
|
||||
static int num_mlgroups;
|
||||
|
||||
static int scan_pio_for_cfg_handle(struct mdesc_handle *md, u64 pio,
|
||||
u32 cfg_handle)
|
||||
{
|
||||
u64 arc;
|
||||
|
||||
mdesc_for_each_arc(arc, md, pio, MDESC_ARC_TYPE_FWD) {
|
||||
u64 target = mdesc_arc_target(md, arc);
|
||||
const u64 *val;
|
||||
|
||||
val = mdesc_get_property(md, target,
|
||||
"cfg-handle", NULL);
|
||||
if (val && *val == cfg_handle)
|
||||
return 0;
|
||||
}
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
static int scan_arcs_for_cfg_handle(struct mdesc_handle *md, u64 grp,
|
||||
u32 cfg_handle)
|
||||
{
|
||||
u64 arc, candidate, best_latency = ~(u64)0;
|
||||
|
||||
candidate = MDESC_NODE_NULL;
|
||||
mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_FWD) {
|
||||
u64 target = mdesc_arc_target(md, arc);
|
||||
const char *name = mdesc_node_name(md, target);
|
||||
const u64 *val;
|
||||
|
||||
if (strcmp(name, "pio-latency-group"))
|
||||
continue;
|
||||
|
||||
val = mdesc_get_property(md, target, "latency", NULL);
|
||||
if (!val)
|
||||
continue;
|
||||
|
||||
if (*val < best_latency) {
|
||||
candidate = target;
|
||||
best_latency = *val;
|
||||
}
|
||||
}
|
||||
|
||||
if (candidate == MDESC_NODE_NULL)
|
||||
return -ENODEV;
|
||||
|
||||
return scan_pio_for_cfg_handle(md, candidate, cfg_handle);
|
||||
}
|
||||
|
||||
int of_node_to_nid(struct device_node *dp)
|
||||
{
|
||||
const struct linux_prom64_registers *regs;
|
||||
struct mdesc_handle *md;
|
||||
u32 cfg_handle;
|
||||
int count, nid;
|
||||
u64 grp;
|
||||
|
||||
if (!mlgroups)
|
||||
return -1;
|
||||
|
||||
regs = of_get_property(dp, "reg", NULL);
|
||||
if (!regs)
|
||||
return -1;
|
||||
|
||||
cfg_handle = (regs->phys_addr >> 32UL) & 0x0fffffff;
|
||||
|
||||
md = mdesc_grab();
|
||||
|
||||
count = 0;
|
||||
nid = -1;
|
||||
mdesc_for_each_node_by_name(md, grp, "group") {
|
||||
if (!scan_arcs_for_cfg_handle(md, grp, cfg_handle)) {
|
||||
nid = count;
|
||||
break;
|
||||
}
|
||||
count++;
|
||||
}
|
||||
|
||||
mdesc_release(md);
|
||||
|
||||
return nid;
|
||||
}
|
||||
|
||||
static void add_node_ranges(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < lmb.memory.cnt; i++) {
|
||||
unsigned long size = lmb_size_bytes(&lmb.memory, i);
|
||||
unsigned long start, end;
|
||||
|
||||
start = lmb.memory.region[i].base;
|
||||
end = start + size;
|
||||
while (start < end) {
|
||||
unsigned long this_end;
|
||||
int nid;
|
||||
|
||||
this_end = nid_range(start, end, &nid);
|
||||
|
||||
numadbg("Adding active range nid[%d] "
|
||||
"start[%lx] end[%lx]\n",
|
||||
nid, start, this_end);
|
||||
|
||||
add_active_range(nid,
|
||||
start >> PAGE_SHIFT,
|
||||
this_end >> PAGE_SHIFT);
|
||||
|
||||
start = this_end;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
static int __init grab_mlgroups(struct mdesc_handle *md)
|
||||
{
|
||||
unsigned long paddr;
|
||||
int count = 0;
|
||||
u64 node;
|
||||
|
||||
mdesc_for_each_node_by_name(md, node, "memory-latency-group")
|
||||
count++;
|
||||
if (!count)
|
||||
return -ENOENT;
|
||||
|
||||
paddr = lmb_alloc(count * sizeof(struct mdesc_mlgroup),
|
||||
SMP_CACHE_BYTES);
|
||||
if (!paddr)
|
||||
return -ENOMEM;
|
||||
|
||||
mlgroups = __va(paddr);
|
||||
num_mlgroups = count;
|
||||
|
||||
count = 0;
|
||||
mdesc_for_each_node_by_name(md, node, "memory-latency-group") {
|
||||
struct mdesc_mlgroup *m = &mlgroups[count++];
|
||||
const u64 *val;
|
||||
|
||||
m->node = node;
|
||||
|
||||
val = mdesc_get_property(md, node, "latency", NULL);
|
||||
m->latency = *val;
|
||||
val = mdesc_get_property(md, node, "address-match", NULL);
|
||||
m->match = *val;
|
||||
val = mdesc_get_property(md, node, "address-mask", NULL);
|
||||
m->mask = *val;
|
||||
|
||||
numadbg("MLGROUP[%d]: node[%lx] latency[%lx] "
|
||||
"match[%lx] mask[%lx]\n",
|
||||
count - 1, m->node, m->latency, m->match, m->mask);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init grab_mblocks(struct mdesc_handle *md)
|
||||
{
|
||||
unsigned long paddr;
|
||||
int count = 0;
|
||||
u64 node;
|
||||
|
||||
mdesc_for_each_node_by_name(md, node, "mblock")
|
||||
count++;
|
||||
if (!count)
|
||||
return -ENOENT;
|
||||
|
||||
paddr = lmb_alloc(count * sizeof(struct mdesc_mblock),
|
||||
SMP_CACHE_BYTES);
|
||||
if (!paddr)
|
||||
return -ENOMEM;
|
||||
|
||||
mblocks = __va(paddr);
|
||||
num_mblocks = count;
|
||||
|
||||
count = 0;
|
||||
mdesc_for_each_node_by_name(md, node, "mblock") {
|
||||
struct mdesc_mblock *m = &mblocks[count++];
|
||||
const u64 *val;
|
||||
|
||||
val = mdesc_get_property(md, node, "base", NULL);
|
||||
m->base = *val;
|
||||
val = mdesc_get_property(md, node, "size", NULL);
|
||||
m->size = *val;
|
||||
val = mdesc_get_property(md, node,
|
||||
"address-congruence-offset", NULL);
|
||||
m->offset = *val;
|
||||
|
||||
numadbg("MBLOCK[%d]: base[%lx] size[%lx] offset[%lx]\n",
|
||||
count - 1, m->base, m->size, m->offset);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void __init numa_parse_mdesc_group_cpus(struct mdesc_handle *md,
|
||||
u64 grp, cpumask_t *mask)
|
||||
{
|
||||
u64 arc;
|
||||
|
||||
cpus_clear(*mask);
|
||||
|
||||
mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_BACK) {
|
||||
u64 target = mdesc_arc_target(md, arc);
|
||||
const char *name = mdesc_node_name(md, target);
|
||||
const u64 *id;
|
||||
|
||||
if (strcmp(name, "cpu"))
|
||||
continue;
|
||||
id = mdesc_get_property(md, target, "id", NULL);
|
||||
if (*id < NR_CPUS)
|
||||
cpu_set(*id, *mask);
|
||||
}
|
||||
}
|
||||
|
||||
static struct mdesc_mlgroup * __init find_mlgroup(u64 node)
|
||||
{
|
||||
int i;
|
||||
|
||||
for (i = 0; i < num_mlgroups; i++) {
|
||||
struct mdesc_mlgroup *m = &mlgroups[i];
|
||||
if (m->node == node)
|
||||
return m;
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static int __init numa_attach_mlgroup(struct mdesc_handle *md, u64 grp,
|
||||
int index)
|
||||
{
|
||||
struct mdesc_mlgroup *candidate = NULL;
|
||||
u64 arc, best_latency = ~(u64)0;
|
||||
struct node_mem_mask *n;
|
||||
|
||||
mdesc_for_each_arc(arc, md, grp, MDESC_ARC_TYPE_FWD) {
|
||||
u64 target = mdesc_arc_target(md, arc);
|
||||
struct mdesc_mlgroup *m = find_mlgroup(target);
|
||||
if (!m)
|
||||
continue;
|
||||
if (m->latency < best_latency) {
|
||||
candidate = m;
|
||||
best_latency = m->latency;
|
||||
}
|
||||
}
|
||||
if (!candidate)
|
||||
return -ENOENT;
|
||||
|
||||
if (num_node_masks != index) {
|
||||
printk(KERN_ERR "Inconsistent NUMA state, "
|
||||
"index[%d] != num_node_masks[%d]\n",
|
||||
index, num_node_masks);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
n = &node_masks[num_node_masks++];
|
||||
|
||||
n->mask = candidate->mask;
|
||||
n->val = candidate->match;
|
||||
|
||||
numadbg("NUMA NODE[%d]: mask[%lx] val[%lx] (latency[%lx])\n",
|
||||
index, n->mask, n->val, candidate->latency);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int __init numa_parse_mdesc_group(struct mdesc_handle *md, u64 grp,
|
||||
int index)
|
||||
{
|
||||
cpumask_t mask;
|
||||
int cpu;
|
||||
|
||||
numa_parse_mdesc_group_cpus(md, grp, &mask);
|
||||
|
||||
for_each_cpu_mask(cpu, mask)
|
||||
numa_cpu_lookup_table[cpu] = index;
|
||||
numa_cpumask_lookup_table[index] = mask;
|
||||
|
||||
if (numa_debug) {
|
||||
printk(KERN_INFO "NUMA GROUP[%d]: cpus [ ", index);
|
||||
for_each_cpu_mask(cpu, mask)
|
||||
printk("%d ", cpu);
|
||||
printk("]\n");
|
||||
}
|
||||
|
||||
return numa_attach_mlgroup(md, grp, index);
|
||||
}
|
||||
|
||||
static int __init numa_parse_mdesc(void)
|
||||
{
|
||||
struct mdesc_handle *md = mdesc_grab();
|
||||
int i, err, count;
|
||||
u64 node;
|
||||
|
||||
node = mdesc_node_by_name(md, MDESC_NODE_NULL, "latency-groups");
|
||||
if (node == MDESC_NODE_NULL) {
|
||||
mdesc_release(md);
|
||||
return -ENOENT;
|
||||
}
|
||||
|
||||
err = grab_mblocks(md);
|
||||
if (err < 0)
|
||||
goto out;
|
||||
|
||||
err = grab_mlgroups(md);
|
||||
if (err < 0)
|
||||
goto out;
|
||||
|
||||
count = 0;
|
||||
mdesc_for_each_node_by_name(md, node, "group") {
|
||||
err = numa_parse_mdesc_group(md, node, count);
|
||||
if (err < 0)
|
||||
break;
|
||||
count++;
|
||||
}
|
||||
|
||||
add_node_ranges();
|
||||
|
||||
for (i = 0; i < num_node_masks; i++) {
|
||||
allocate_node_data(i);
|
||||
node_set_online(i);
|
||||
}
|
||||
|
||||
err = 0;
|
||||
out:
|
||||
mdesc_release(md);
|
||||
return err;
|
||||
}
|
||||
|
||||
static int __init numa_parse_sun4u(void)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
static int __init bootmem_init_numa(void)
|
||||
{
|
||||
int err = -1;
|
||||
|
||||
numadbg("bootmem_init_numa()\n");
|
||||
|
||||
if (numa_enabled) {
|
||||
if (tlb_type == hypervisor)
|
||||
err = numa_parse_mdesc();
|
||||
else
|
||||
err = numa_parse_sun4u();
|
||||
}
|
||||
return err;
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
static int bootmem_init_numa(void)
|
||||
{
|
||||
return -1;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
static void __init bootmem_init_nonnuma(void)
|
||||
{
|
||||
unsigned long top_of_ram = lmb_end_of_DRAM();
|
||||
unsigned long total_ram = lmb_phys_mem_size();
|
||||
unsigned int i;
|
||||
|
||||
numadbg("bootmem_init_nonnuma()\n");
|
||||
|
||||
printk(KERN_INFO "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
|
||||
top_of_ram, total_ram);
|
||||
printk(KERN_INFO "Memory hole size: %ldMB\n",
|
||||
(top_of_ram - total_ram) >> 20);
|
||||
|
||||
init_node_masks_nonnuma();
|
||||
|
||||
for (i = 0; i < lmb.memory.cnt; i++) {
|
||||
unsigned long size = lmb_size_bytes(&lmb.memory, i);
|
||||
unsigned long start_pfn, end_pfn;
|
||||
|
||||
if (!size)
|
||||
continue;
|
||||
|
||||
start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT;
|
||||
end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i);
|
||||
add_active_range(0, start_pfn, end_pfn);
|
||||
}
|
||||
|
||||
allocate_node_data(0);
|
||||
|
||||
node_set_online(0);
|
||||
}
|
||||
|
||||
static void __init reserve_range_in_node(int nid, unsigned long start,
|
||||
unsigned long end)
|
||||
{
|
||||
numadbg(" reserve_range_in_node(nid[%d],start[%lx],end[%lx]\n",
|
||||
nid, start, end);
|
||||
while (start < end) {
|
||||
unsigned long this_end;
|
||||
int n;
|
||||
|
||||
this_end = nid_range(start, end, &n);
|
||||
if (n == nid) {
|
||||
numadbg(" MATCH reserving range [%lx:%lx]\n",
|
||||
start, this_end);
|
||||
reserve_bootmem_node(NODE_DATA(nid), start,
|
||||
(this_end - start), BOOTMEM_DEFAULT);
|
||||
} else
|
||||
numadbg(" NO MATCH, advancing start to %lx\n",
|
||||
this_end);
|
||||
|
||||
start = this_end;
|
||||
}
|
||||
}
|
||||
|
||||
static void __init trim_reserved_in_node(int nid)
|
||||
{
|
||||
int i;
|
||||
|
||||
numadbg(" trim_reserved_in_node(%d)\n", nid);
|
||||
|
||||
for (i = 0; i < lmb.reserved.cnt; i++) {
|
||||
unsigned long start = lmb.reserved.region[i].base;
|
||||
unsigned long size = lmb_size_bytes(&lmb.reserved, i);
|
||||
unsigned long end = start + size;
|
||||
|
||||
reserve_range_in_node(nid, start, end);
|
||||
}
|
||||
}
|
||||
|
||||
static void __init bootmem_init_one_node(int nid)
|
||||
{
|
||||
struct pglist_data *p;
|
||||
|
||||
numadbg("bootmem_init_one_node(%d)\n", nid);
|
||||
|
||||
p = NODE_DATA(nid);
|
||||
|
||||
if (p->node_spanned_pages) {
|
||||
unsigned long paddr = node_masks[nid].bootmem_paddr;
|
||||
unsigned long end_pfn;
|
||||
|
||||
end_pfn = p->node_start_pfn + p->node_spanned_pages;
|
||||
|
||||
numadbg(" init_bootmem_node(%d, %lx, %lx, %lx)\n",
|
||||
nid, paddr >> PAGE_SHIFT, p->node_start_pfn, end_pfn);
|
||||
|
||||
init_bootmem_node(p, paddr >> PAGE_SHIFT,
|
||||
p->node_start_pfn, end_pfn);
|
||||
|
||||
numadbg(" free_bootmem_with_active_regions(%d, %lx)\n",
|
||||
nid, end_pfn);
|
||||
free_bootmem_with_active_regions(nid, end_pfn);
|
||||
|
||||
trim_reserved_in_node(nid);
|
||||
|
||||
numadbg(" sparse_memory_present_with_active_regions(%d)\n",
|
||||
nid);
|
||||
sparse_memory_present_with_active_regions(nid);
|
||||
}
|
||||
}
|
||||
|
||||
static unsigned long __init bootmem_init(unsigned long phys_base)
|
||||
{
|
||||
unsigned long end_pfn;
|
||||
int nid;
|
||||
|
||||
end_pfn = lmb_end_of_DRAM() >> PAGE_SHIFT;
|
||||
max_pfn = max_low_pfn = end_pfn;
|
||||
min_low_pfn = (phys_base >> PAGE_SHIFT);
|
||||
|
||||
init_bootmem_node(NODE_DATA(0),
|
||||
choose_bootmap_pfn(min_low_pfn, end_pfn),
|
||||
min_low_pfn, end_pfn);
|
||||
if (bootmem_init_numa() < 0)
|
||||
bootmem_init_nonnuma();
|
||||
|
||||
/* Now register the available physical memory with the
|
||||
* allocator.
|
||||
*/
|
||||
for (i = 0; i < lmb.memory.cnt; i++)
|
||||
free_bootmem(lmb.memory.region[i].base,
|
||||
lmb_size_bytes(&lmb.memory, i));
|
||||
/* XXX cpu notifier XXX */
|
||||
|
||||
for (i = 0; i < lmb.reserved.cnt; i++)
|
||||
reserve_bootmem(lmb.reserved.region[i].base,
|
||||
lmb_size_bytes(&lmb.reserved, i),
|
||||
BOOTMEM_DEFAULT);
|
||||
|
||||
*pages_avail -= PAGE_ALIGN(kern_size) >> PAGE_SHIFT;
|
||||
|
||||
for (i = 0; i < lmb.memory.cnt; ++i) {
|
||||
unsigned long start_pfn, end_pfn, pages;
|
||||
|
||||
pages = lmb_size_pages(&lmb.memory, i);
|
||||
start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT;
|
||||
end_pfn = start_pfn + pages;
|
||||
|
||||
memory_present(0, start_pfn, end_pfn);
|
||||
}
|
||||
for_each_online_node(nid)
|
||||
bootmem_init_one_node(nid);
|
||||
|
||||
sparse_init();
|
||||
|
||||
|
|
@ -1112,7 +1688,7 @@ void __init setup_per_cpu_areas(void)
|
|||
|
||||
void __init paging_init(void)
|
||||
{
|
||||
unsigned long end_pfn, pages_avail, shift, phys_base;
|
||||
unsigned long end_pfn, shift, phys_base;
|
||||
unsigned long real_end, i;
|
||||
|
||||
/* These build time checkes make sure that the dcache_dirty_cpu()
|
||||
|
|
@ -1220,27 +1796,21 @@ void __init paging_init(void)
|
|||
sun4v_mdesc_init();
|
||||
|
||||
/* Setup bootmem... */
|
||||
pages_avail = 0;
|
||||
last_valid_pfn = end_pfn = bootmem_init(&pages_avail, phys_base);
|
||||
last_valid_pfn = end_pfn = bootmem_init(phys_base);
|
||||
|
||||
#ifndef CONFIG_NEED_MULTIPLE_NODES
|
||||
max_mapnr = last_valid_pfn;
|
||||
|
||||
#endif
|
||||
kernel_physical_mapping_init();
|
||||
|
||||
{
|
||||
unsigned long zones_size[MAX_NR_ZONES];
|
||||
unsigned long zholes_size[MAX_NR_ZONES];
|
||||
int znum;
|
||||
unsigned long max_zone_pfns[MAX_NR_ZONES];
|
||||
|
||||
for (znum = 0; znum < MAX_NR_ZONES; znum++)
|
||||
zones_size[znum] = zholes_size[znum] = 0;
|
||||
memset(max_zone_pfns, 0, sizeof(max_zone_pfns));
|
||||
|
||||
zones_size[ZONE_NORMAL] = end_pfn;
|
||||
zholes_size[ZONE_NORMAL] = end_pfn - pages_avail;
|
||||
max_zone_pfns[ZONE_NORMAL] = end_pfn;
|
||||
|
||||
free_area_init_node(0, &contig_page_data, zones_size,
|
||||
__pa(PAGE_OFFSET) >> PAGE_SHIFT,
|
||||
zholes_size);
|
||||
free_area_init_nodes(max_zone_pfns);
|
||||
}
|
||||
|
||||
printk("Booting Linux...\n");
|
||||
|
|
@ -1249,21 +1819,52 @@ void __init paging_init(void)
|
|||
cpu_probe();
|
||||
}
|
||||
|
||||
static void __init taint_real_pages(void)
|
||||
int __init page_in_phys_avail(unsigned long paddr)
|
||||
{
|
||||
int i;
|
||||
|
||||
paddr &= PAGE_MASK;
|
||||
|
||||
for (i = 0; i < pavail_ents; i++) {
|
||||
unsigned long start, end;
|
||||
|
||||
start = pavail[i].phys_addr;
|
||||
end = start + pavail[i].reg_size;
|
||||
|
||||
if (paddr >= start && paddr < end)
|
||||
return 1;
|
||||
}
|
||||
if (paddr >= kern_base && paddr < (kern_base + kern_size))
|
||||
return 1;
|
||||
#ifdef CONFIG_BLK_DEV_INITRD
|
||||
if (paddr >= __pa(initrd_start) &&
|
||||
paddr < __pa(PAGE_ALIGN(initrd_end)))
|
||||
return 1;
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct linux_prom64_registers pavail_rescan[MAX_BANKS] __initdata;
|
||||
static int pavail_rescan_ents __initdata;
|
||||
|
||||
/* Certain OBP calls, such as fetching "available" properties, can
|
||||
* claim physical memory. So, along with initializing the valid
|
||||
* address bitmap, what we do here is refetch the physical available
|
||||
* memory list again, and make sure it provides at least as much
|
||||
* memory as 'pavail' does.
|
||||
*/
|
||||
static void setup_valid_addr_bitmap_from_pavail(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
read_obp_memory("available", &pavail_rescan[0], &pavail_rescan_ents);
|
||||
|
||||
/* Find changes discovered in the physmem available rescan and
|
||||
* reserve the lost portions in the bootmem maps.
|
||||
*/
|
||||
for (i = 0; i < pavail_ents; i++) {
|
||||
unsigned long old_start, old_end;
|
||||
|
||||
old_start = pavail[i].phys_addr;
|
||||
old_end = old_start +
|
||||
pavail[i].reg_size;
|
||||
old_end = old_start + pavail[i].reg_size;
|
||||
while (old_start < old_end) {
|
||||
int n;
|
||||
|
||||
|
|
@ -1281,7 +1882,16 @@ static void __init taint_real_pages(void)
|
|||
goto do_next_page;
|
||||
}
|
||||
}
|
||||
reserve_bootmem(old_start, PAGE_SIZE, BOOTMEM_DEFAULT);
|
||||
|
||||
prom_printf("mem_init: Lost memory in pavail\n");
|
||||
prom_printf("mem_init: OLD start[%lx] size[%lx]\n",
|
||||
pavail[i].phys_addr,
|
||||
pavail[i].reg_size);
|
||||
prom_printf("mem_init: NEW start[%lx] size[%lx]\n",
|
||||
pavail_rescan[i].phys_addr,
|
||||
pavail_rescan[i].reg_size);
|
||||
prom_printf("mem_init: Cannot continue, aborting.\n");
|
||||
prom_halt();
|
||||
|
||||
do_next_page:
|
||||
old_start += PAGE_SIZE;
|
||||
|
|
@ -1289,32 +1899,6 @@ static void __init taint_real_pages(void)
|
|||
}
|
||||
}
|
||||
|
||||
int __init page_in_phys_avail(unsigned long paddr)
|
||||
{
|
||||
int i;
|
||||
|
||||
paddr &= PAGE_MASK;
|
||||
|
||||
for (i = 0; i < pavail_rescan_ents; i++) {
|
||||
unsigned long start, end;
|
||||
|
||||
start = pavail_rescan[i].phys_addr;
|
||||
end = start + pavail_rescan[i].reg_size;
|
||||
|
||||
if (paddr >= start && paddr < end)
|
||||
return 1;
|
||||
}
|
||||
if (paddr >= kern_base && paddr < (kern_base + kern_size))
|
||||
return 1;
|
||||
#ifdef CONFIG_BLK_DEV_INITRD
|
||||
if (paddr >= __pa(initrd_start) &&
|
||||
paddr < __pa(PAGE_ALIGN(initrd_end)))
|
||||
return 1;
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
void __init mem_init(void)
|
||||
{
|
||||
unsigned long codepages, datapages, initpages;
|
||||
|
|
@ -1337,14 +1921,26 @@ void __init mem_init(void)
|
|||
addr += PAGE_SIZE;
|
||||
}
|
||||
|
||||
taint_real_pages();
|
||||
setup_valid_addr_bitmap_from_pavail();
|
||||
|
||||
high_memory = __va(last_valid_pfn << PAGE_SHIFT);
|
||||
|
||||
#ifdef CONFIG_NEED_MULTIPLE_NODES
|
||||
for_each_online_node(i) {
|
||||
if (NODE_DATA(i)->node_spanned_pages != 0) {
|
||||
totalram_pages +=
|
||||
free_all_bootmem_node(NODE_DATA(i));
|
||||
}
|
||||
}
|
||||
#else
|
||||
totalram_pages = free_all_bootmem();
|
||||
#endif
|
||||
|
||||
/* We subtract one to account for the mem_map_zero page
|
||||
* allocated below.
|
||||
*/
|
||||
totalram_pages = num_physpages = free_all_bootmem() - 1;
|
||||
totalram_pages -= 1;
|
||||
num_physpages = totalram_pages;
|
||||
|
||||
/*
|
||||
* Set up the zero page, mark it reserved, so that page count
|
||||
|
|
|
|||
|
|
@ -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 */
|
||||
|
|
@ -1,6 +1,77 @@
|
|||
#ifndef _ASM_SPARC64_TOPOLOGY_H
|
||||
#define _ASM_SPARC64_TOPOLOGY_H
|
||||
|
||||
#ifdef CONFIG_NUMA
|
||||
|
||||
#include <asm/mmzone.h>
|
||||
|
||||
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 <asm-generic/topology.h>
|
||||
|
||||
#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 <asm-generic/topology.h>
|
||||
|
||||
#define cpu_coregroup_map(cpu) (cpu_core_map[cpu])
|
||||
|
||||
#endif /* _ASM_SPARC64_TOPOLOGY_H */
|
||||
|
|
|
|||
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