From 6c1c325de908cbc444cf284f59c3a892161012e9 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Wed, 5 Nov 2008 17:27:22 -0600 Subject: sgi-xp: define xp_expand_memprotect() and xp_restrict_memprotect() Define xp_expand_memprotect() and xp_restrict_memprotect() so they can be tailered to the hardware they are run on. Signed-off-by: Dean Nelson Signed-off-by: H. Peter Anvin --- drivers/misc/sgi-xp/xp.h | 7 +++-- drivers/misc/sgi-xp/xp_main.c | 7 +++++ drivers/misc/sgi-xp/xp_sn2.c | 34 ++++++++++++++++++++++ drivers/misc/sgi-xp/xp_uv.c | 66 +++++++++++++++++++++++++++++++++++++++++++ drivers/misc/sgi-xp/xpc_sn2.c | 15 ++++------ 5 files changed, 117 insertions(+), 12 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h index 859a5281c61..974ffe3817b 100644 --- a/drivers/misc/sgi-xp/xp.h +++ b/drivers/misc/sgi-xp/xp.h @@ -190,9 +190,10 @@ enum xp_retval { xpGruSendMqError, /* 59: gru send message queue related error */ xpBadChannelNumber, /* 60: invalid channel number */ - xpBadMsgType, /* 60: invalid message type */ + xpBadMsgType, /* 61: invalid message type */ + xpBiosError, /* 62: BIOS error */ - xpUnknownReason /* 61: unknown reason - must be last in enum */ + xpUnknownReason /* 63: unknown reason - must be last in enum */ }; /* @@ -341,6 +342,8 @@ extern unsigned long (*xp_pa) (void *); extern enum xp_retval (*xp_remote_memcpy) (unsigned long, const unsigned long, size_t); extern int (*xp_cpu_to_nasid) (int); +extern enum xp_retval (*xp_expand_memprotect) (unsigned long, unsigned long); +extern enum xp_retval (*xp_restrict_memprotect) (unsigned long, unsigned long); extern u64 xp_nofault_PIOR_target; extern int xp_nofault_PIOR(void *); diff --git a/drivers/misc/sgi-xp/xp_main.c b/drivers/misc/sgi-xp/xp_main.c index 66a1d19e08a..9a2e77172d9 100644 --- a/drivers/misc/sgi-xp/xp_main.c +++ b/drivers/misc/sgi-xp/xp_main.c @@ -51,6 +51,13 @@ EXPORT_SYMBOL_GPL(xp_remote_memcpy); int (*xp_cpu_to_nasid) (int cpuid); EXPORT_SYMBOL_GPL(xp_cpu_to_nasid); +enum xp_retval (*xp_expand_memprotect) (unsigned long phys_addr, + unsigned long size); +EXPORT_SYMBOL_GPL(xp_expand_memprotect); +enum xp_retval (*xp_restrict_memprotect) (unsigned long phys_addr, + unsigned long size); +EXPORT_SYMBOL_GPL(xp_restrict_memprotect); + /* * xpc_registrations[] keeps track of xpc_connect()'s done by the kernel-level * users of XPC. diff --git a/drivers/misc/sgi-xp/xp_sn2.c b/drivers/misc/sgi-xp/xp_sn2.c index 1440134caf3..fb3ec9d735a 100644 --- a/drivers/misc/sgi-xp/xp_sn2.c +++ b/drivers/misc/sgi-xp/xp_sn2.c @@ -120,6 +120,38 @@ xp_cpu_to_nasid_sn2(int cpuid) return cpuid_to_nasid(cpuid); } +static enum xp_retval +xp_expand_memprotect_sn2(unsigned long phys_addr, unsigned long size) +{ + u64 nasid_array = 0; + int ret; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret); + return xpSalError; + } + return xpSuccess; +} + +static enum xp_retval +xp_restrict_memprotect_sn2(unsigned long phys_addr, unsigned long size) +{ + u64 nasid_array = 0; + int ret; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret); + return xpSalError; + } + return xpSuccess; +} + enum xp_retval xp_init_sn2(void) { @@ -132,6 +164,8 @@ xp_init_sn2(void) xp_pa = xp_pa_sn2; xp_remote_memcpy = xp_remote_memcpy_sn2; xp_cpu_to_nasid = xp_cpu_to_nasid_sn2; + xp_expand_memprotect = xp_expand_memprotect_sn2; + xp_restrict_memprotect = xp_restrict_memprotect_sn2; return xp_register_nofault_code_sn2(); } diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c index d9f7ce2510b..c1bfec2b173 100644 --- a/drivers/misc/sgi-xp/xp_uv.c +++ b/drivers/misc/sgi-xp/xp_uv.c @@ -15,6 +15,11 @@ #include #include +#if defined CONFIG_X86_64 +#include +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV +#include +#endif #include "../sgi-gru/grukservices.h" #include "xp.h" @@ -49,6 +54,65 @@ xp_cpu_to_nasid_uv(int cpuid) return UV_PNODE_TO_NASID(uv_cpu_to_pnode(cpuid)); } +static enum xp_retval +xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size) +{ + int ret; + +#if defined CONFIG_X86_64 + ret = uv_bios_change_memprotect(phys_addr, size, UV_MEMPROT_ALLOW_RW); + if (ret != BIOS_STATUS_SUCCESS) { + dev_err(xp, "uv_bios_change_memprotect(,, " + "UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret); + return xpBiosError; + } + +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + u64 nasid_array; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret); + return xpSalError; + } +#else + #error not a supported configuration +#endif + return xpSuccess; +} + +static enum xp_retval +xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size) +{ + int ret; + +#if defined CONFIG_X86_64 + ret = uv_bios_change_memprotect(phys_addr, size, + UV_MEMPROT_RESTRICT_ACCESS); + if (ret != BIOS_STATUS_SUCCESS) { + dev_err(xp, "uv_bios_change_memprotect(,, " + "UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret); + return xpBiosError; + } + +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + u64 nasid_array; + + ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0, + &nasid_array); + if (ret != 0) { + dev_err(xp, "sn_change_memprotect(,, " + "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret); + return xpSalError; + } +#else + #error not a supported configuration +#endif + return xpSuccess; +} + enum xp_retval xp_init_uv(void) { @@ -61,6 +125,8 @@ xp_init_uv(void) xp_pa = xp_pa_uv; xp_remote_memcpy = xp_remote_memcpy_uv; xp_cpu_to_nasid = xp_cpu_to_nasid_uv; + xp_expand_memprotect = xp_expand_memprotect_uv; + xp_restrict_memprotect = xp_restrict_memprotect_uv; return xpSuccess; } diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c index b4882ccf634..73b7fb8de47 100644 --- a/drivers/misc/sgi-xp/xpc_sn2.c +++ b/drivers/misc/sgi-xp/xpc_sn2.c @@ -553,22 +553,17 @@ static u64 xpc_prot_vec_sn2[MAX_NUMNODES]; static enum xp_retval xpc_allow_amo_ops_sn2(struct amo *amos_page) { - u64 nasid_array = 0; - int ret; + enum xp_retval ret = xpSuccess; /* * On SHUB 1.1, we cannot call sn_change_memprotect() since the BIST * collides with memory operations. On those systems we call * xpc_allow_amo_ops_shub_wars_1_1_sn2() instead. */ - if (!enable_shub_wars_1_1()) { - ret = sn_change_memprotect(ia64_tpa((u64)amos_page), PAGE_SIZE, - SN_MEMPROT_ACCESS_CLASS_1, - &nasid_array); - if (ret != 0) - return xpSalError; - } - return xpSuccess; + if (!enable_shub_wars_1_1()) + ret = xp_expand_memprotect(ia64_tpa((u64)amos_page), PAGE_SIZE); + + return ret; } /* -- cgit v1.2.3-70-g09d2 From 2525789b4694d78df4f001063f042b2b74227d26 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Wed, 5 Nov 2008 17:28:00 -0600 Subject: sgi-xp: create activate and notify gru message queues For UV add the code to create the activate and notify gru message queues. Signed-off-by: Dean Nelson Signed-off-by: H. Peter Anvin --- drivers/misc/sgi-xp/xpc.h | 12 ++ drivers/misc/sgi-xp/xpc_uv.c | 259 ++++++++++++++++++++++++++++++++++--------- 2 files changed, 218 insertions(+), 53 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/sgi-xp/xpc.h b/drivers/misc/sgi-xp/xpc.h index 619208d6186..a5bd658c2e8 100644 --- a/drivers/misc/sgi-xp/xpc.h +++ b/drivers/misc/sgi-xp/xpc.h @@ -180,6 +180,18 @@ struct xpc_vars_part_sn2 { (XPC_RP_MACH_NASIDS(_rp) + \ xpc_nasid_mask_nlongs)) +/* + * Info pertinent to a GRU message queue using a watch list for irq generation. + */ +struct xpc_gru_mq_uv { + void *address; /* address of GRU message queue */ + unsigned int order; /* size of GRU message queue as a power of 2 */ + int irq; /* irq raised when message is received in mq */ + int mmr_blade; /* blade where watchlist was allocated from */ + unsigned long mmr_offset; /* offset of irq mmr located on mmr_blade */ + int watchlist_num; /* number of watchlist allocatd by BIOS */ +}; + /* * The activate_mq is used to send/receive GRU messages that affect XPC's * heartbeat, partition active state, and channel state. This is UV only. diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 1ac694c0162..ec526c7ff70 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -18,7 +18,15 @@ #include #include #include +#include #include +#if defined CONFIG_X86_64 +#include +#include +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV +#include +#include +#endif #include "../sgi-gru/gru.h" #include "../sgi-gru/grukservices.h" #include "xpc.h" @@ -27,15 +35,17 @@ static atomic64_t xpc_heartbeat_uv; static DECLARE_BITMAP(xpc_heartbeating_to_mask_uv, XP_MAX_NPARTITIONS_UV); #define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES) -#define XPC_NOTIFY_MSG_SIZE_UV (2 * GRU_CACHE_LINE_BYTES) +#define XPC_ACTIVATE_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \ + XPC_ACTIVATE_MSG_SIZE_UV) +#define XPC_ACTIVATE_IRQ_NAME "xpc_activate" -#define XPC_ACTIVATE_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \ - XPC_ACTIVATE_MSG_SIZE_UV) -#define XPC_NOTIFY_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \ - XPC_NOTIFY_MSG_SIZE_UV) +#define XPC_NOTIFY_MSG_SIZE_UV (2 * GRU_CACHE_LINE_BYTES) +#define XPC_NOTIFY_MQ_SIZE_UV (4 * XP_MAX_NPARTITIONS_UV * \ + XPC_NOTIFY_MSG_SIZE_UV) +#define XPC_NOTIFY_IRQ_NAME "xpc_notify" -static void *xpc_activate_mq_uv; -static void *xpc_notify_mq_uv; +static struct xpc_gru_mq_uv *xpc_activate_mq_uv; +static struct xpc_gru_mq_uv *xpc_notify_mq_uv; static int xpc_setup_partitions_sn_uv(void) @@ -52,62 +62,209 @@ xpc_setup_partitions_sn_uv(void) return 0; } -static void * -xpc_create_gru_mq_uv(unsigned int mq_size, int cpuid, unsigned int irq, +static int +xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name) +{ +#if defined CONFIG_X86_64 + mq->irq = uv_setup_irq(irq_name, cpu, mq->mmr_blade, mq->mmr_offset); + if (mq->irq < 0) { + dev_err(xpc_part, "uv_setup_irq() returned error=%d\n", + mq->irq); + } + +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + int mmr_pnode; + unsigned long mmr_value; + + if (strcmp(irq_name, XPC_ACTIVATE_IRQ_NAME) == 0) + mq->irq = SGI_XPC_ACTIVATE; + else if (strcmp(irq_name, XPC_NOTIFY_IRQ_NAME) == 0) + mq->irq = SGI_XPC_NOTIFY; + else + return -EINVAL; + + mmr_pnode = uv_blade_to_pnode(mq->mmr_blade); + mmr_value = (unsigned long)cpu_physical_id(cpu) << 32 | mq->irq; + + uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mmr_value); +#else + #error not a supported configuration +#endif + + return 0; +} + +static void +xpc_release_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq) +{ +#if defined CONFIG_X86_64 + uv_teardown_irq(mq->irq, mq->mmr_blade, mq->mmr_offset); + +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + int mmr_pnode; + unsigned long mmr_value; + + mmr_pnode = uv_blade_to_pnode(mq->mmr_blade); + mmr_value = 1UL << 16; + + uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mmr_value); +#else + #error not a supported configuration +#endif +} + +static int +xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq) +{ + int ret; + +#if defined CONFIG_X86_64 + ret = uv_bios_mq_watchlist_alloc(mq->mmr_blade, mq->address, mq->order, + &mq->mmr_offset); + if (ret < 0) { + dev_err(xpc_part, "uv_bios_mq_watchlist_alloc() failed, " + "ret=%d\n", ret); + return ret; + } +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + ret = sn_mq_watchlist_alloc(mq->mmr_blade, mq->address, mq->order, + &mq->mmr_offset); + if (ret < 0) { + dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n", + ret); + return -EBUSY; + } +#else + #error not a supported configuration +#endif + + mq->watchlist_num = ret; + return 0; +} + +static void +xpc_gru_mq_watchlist_free_uv(struct xpc_gru_mq_uv *mq) +{ + int ret; + +#if defined CONFIG_X86_64 + ret = uv_bios_mq_watchlist_free(mq->mmr_blade, mq->watchlist_num); + BUG_ON(ret != BIOS_STATUS_SUCCESS); +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + ret = sn_mq_watchlist_free(mq->mmr_blade, mq->watchlist_num); + BUG_ON(ret != SALRET_OK); +#else + #error not a supported configuration +#endif +} + +static struct xpc_gru_mq_uv * +xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name, irq_handler_t irq_handler) { + enum xp_retval xp_ret; int ret; int nid; - int mq_order; + int pg_order; struct page *page; - void *mq; + struct xpc_gru_mq_uv *mq; + + mq = kmalloc(sizeof(struct xpc_gru_mq_uv), GFP_KERNEL); + if (mq == NULL) { + dev_err(xpc_part, "xpc_create_gru_mq_uv() failed to kmalloc() " + "a xpc_gru_mq_uv structure\n"); + ret = -ENOMEM; + goto out_1; + } - nid = cpu_to_node(cpuid); - mq_order = get_order(mq_size); + pg_order = get_order(mq_size); + mq->order = pg_order + PAGE_SHIFT; + mq_size = 1UL << mq->order; + + mq->mmr_blade = uv_cpu_to_blade_id(cpu); + + nid = cpu_to_node(cpu); page = alloc_pages_node(nid, GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, - mq_order); + pg_order); if (page == NULL) { dev_err(xpc_part, "xpc_create_gru_mq_uv() failed to alloc %d " "bytes of memory on nid=%d for GRU mq\n", mq_size, nid); - return NULL; + ret = -ENOMEM; + goto out_2; } + mq->address = page_address(page); - mq = page_address(page); - ret = gru_create_message_queue(mq, mq_size); + ret = gru_create_message_queue(mq->address, mq_size); if (ret != 0) { dev_err(xpc_part, "gru_create_message_queue() returned " "error=%d\n", ret); - free_pages((unsigned long)mq, mq_order); - return NULL; + ret = -EINVAL; + goto out_3; } - /* !!! Need to do some other things to set up IRQ */ + /* enable generation of irq when GRU mq operation occurs to this mq */ + ret = xpc_gru_mq_watchlist_alloc_uv(mq); + if (ret != 0) + goto out_3; - ret = request_irq(irq, irq_handler, 0, "xpc", NULL); + ret = xpc_get_gru_mq_irq_uv(mq, cpu, irq_name); + if (ret != 0) + goto out_4; + + ret = request_irq(mq->irq, irq_handler, 0, irq_name, NULL); if (ret != 0) { dev_err(xpc_part, "request_irq(irq=%d) returned error=%d\n", - irq, ret); - free_pages((unsigned long)mq, mq_order); - return NULL; + mq->irq, ret); + goto out_5; } - /* !!! enable generation of irq when GRU mq op occurs to this mq */ - - /* ??? allow other partitions to access GRU mq? */ + /* allow other partitions to access this GRU mq */ + xp_ret = xp_expand_memprotect(xp_pa(mq->address), mq_size); + if (xp_ret != xpSuccess) { + ret = -EACCES; + goto out_6; + } return mq; + + /* something went wrong */ +out_6: + free_irq(mq->irq, NULL); +out_5: + xpc_release_gru_mq_irq_uv(mq); +out_4: + xpc_gru_mq_watchlist_free_uv(mq); +out_3: + free_pages((unsigned long)mq->address, pg_order); +out_2: + kfree(mq); +out_1: + return ERR_PTR(ret); } static void -xpc_destroy_gru_mq_uv(void *mq, unsigned int mq_size, unsigned int irq) +xpc_destroy_gru_mq_uv(struct xpc_gru_mq_uv *mq) { - /* ??? disallow other partitions to access GRU mq? */ + unsigned int mq_size; + int pg_order; + int ret; + + /* disallow other partitions to access GRU mq */ + mq_size = 1UL << mq->order; + ret = xp_restrict_memprotect(xp_pa(mq->address), mq_size); + BUG_ON(ret != xpSuccess); + + /* unregister irq handler and release mq irq/vector mapping */ + free_irq(mq->irq, NULL); + xpc_release_gru_mq_irq_uv(mq); - /* !!! disable generation of irq when GRU mq op occurs to this mq */ + /* disable generation of irq when GRU mq op occurs to this mq */ + xpc_gru_mq_watchlist_free_uv(mq); - free_irq(irq, NULL); + pg_order = mq->order - PAGE_SHIFT; + free_pages((unsigned long)mq->address, pg_order); - free_pages((unsigned long)mq, get_order(mq_size)); + kfree(mq); } static enum xp_retval @@ -402,7 +559,10 @@ xpc_handle_activate_IRQ_uv(int irq, void *dev_id) struct xpc_partition *part; int wakeup_hb_checker = 0; - while ((msg_hdr = gru_get_next_message(xpc_activate_mq_uv)) != NULL) { + while (1) { + msg_hdr = gru_get_next_message(xpc_activate_mq_uv->address); + if (msg_hdr == NULL) + break; partid = msg_hdr->partid; if (partid < 0 || partid >= XP_MAX_NPARTITIONS_UV) { @@ -418,7 +578,7 @@ xpc_handle_activate_IRQ_uv(int irq, void *dev_id) } } - gru_free_message(xpc_activate_mq_uv, msg_hdr); + gru_free_message(xpc_activate_mq_uv->address, msg_hdr); } if (wakeup_hb_checker) @@ -507,7 +667,7 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa, static int xpc_setup_rsvd_page_sn_uv(struct xpc_rsvd_page *rp) { - rp->sn.activate_mq_gpa = uv_gpa(xpc_activate_mq_uv); + rp->sn.activate_mq_gpa = uv_gpa(xpc_activate_mq_uv->address); return 0; } @@ -1411,22 +1571,18 @@ xpc_init_uv(void) return -E2BIG; } - /* ??? The cpuid argument's value is 0, is that what we want? */ - /* !!! The irq argument's value isn't correct. */ - xpc_activate_mq_uv = xpc_create_gru_mq_uv(XPC_ACTIVATE_MQ_SIZE_UV, 0, 0, + xpc_activate_mq_uv = xpc_create_gru_mq_uv(XPC_ACTIVATE_MQ_SIZE_UV, 0, + XPC_ACTIVATE_IRQ_NAME, xpc_handle_activate_IRQ_uv); - if (xpc_activate_mq_uv == NULL) - return -ENOMEM; + if (IS_ERR(xpc_activate_mq_uv)) + return PTR_ERR(xpc_activate_mq_uv); - /* ??? The cpuid argument's value is 0, is that what we want? */ - /* !!! The irq argument's value isn't correct. */ - xpc_notify_mq_uv = xpc_create_gru_mq_uv(XPC_NOTIFY_MQ_SIZE_UV, 0, 0, + xpc_notify_mq_uv = xpc_create_gru_mq_uv(XPC_NOTIFY_MQ_SIZE_UV, 0, + XPC_NOTIFY_IRQ_NAME, xpc_handle_notify_IRQ_uv); - if (xpc_notify_mq_uv == NULL) { - /* !!! The irq argument's value isn't correct. */ - xpc_destroy_gru_mq_uv(xpc_activate_mq_uv, - XPC_ACTIVATE_MQ_SIZE_UV, 0); - return -ENOMEM; + if (IS_ERR(xpc_notify_mq_uv)) { + xpc_destroy_gru_mq_uv(xpc_activate_mq_uv); + return PTR_ERR(xpc_notify_mq_uv); } return 0; @@ -1435,9 +1591,6 @@ xpc_init_uv(void) void xpc_exit_uv(void) { - /* !!! The irq argument's value isn't correct. */ - xpc_destroy_gru_mq_uv(xpc_notify_mq_uv, XPC_NOTIFY_MQ_SIZE_UV, 0); - - /* !!! The irq argument's value isn't correct. */ - xpc_destroy_gru_mq_uv(xpc_activate_mq_uv, XPC_ACTIVATE_MQ_SIZE_UV, 0); + xpc_destroy_gru_mq_uv(xpc_notify_mq_uv); + xpc_destroy_gru_mq_uv(xpc_activate_mq_uv); } -- cgit v1.2.3-70-g09d2 From 31de5ece351a218a35b9bf83ab05a14373261bb6 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Wed, 5 Nov 2008 17:28:35 -0600 Subject: sgi-xp: define xp_partition_id and xp_region_size Define xp_partition_id and xp_region_size to their correct values. Signed-off-by: Dean Nelson Signed-off-by: H. Peter Anvin --- drivers/misc/sgi-xp/xp_uv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c index c1bfec2b173..d238576b26f 100644 --- a/drivers/misc/sgi-xp/xp_uv.c +++ b/drivers/misc/sgi-xp/xp_uv.c @@ -119,8 +119,8 @@ xp_init_uv(void) BUG_ON(!is_uv()); xp_max_npartitions = XP_MAX_NPARTITIONS_UV; - xp_partition_id = 0; /* !!! not correct value */ - xp_region_size = 0; /* !!! not correct value */ + xp_partition_id = sn_partition_id; + xp_region_size = sn_region_size; xp_pa = xp_pa_uv; xp_remote_memcpy = xp_remote_memcpy_uv; -- cgit v1.2.3-70-g09d2 From 7d9d1f25c3872080ce599e5dd0dac3305d0a028b Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Wed, 5 Nov 2008 17:29:48 -0600 Subject: sgi-xp: support getting the address of a partition's reserved page Add support for getting the address of a partition's reserved page. Signed-off-by: Dean Nelson Signed-off-by: H. Peter Anvin --- drivers/misc/sgi-xp/xpc_uv.c | 31 ++++++++++++++++++++++++++++--- 1 file changed, 28 insertions(+), 3 deletions(-) (limited to 'drivers/misc') diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index ec526c7ff70..684b2dd1758 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -642,7 +642,7 @@ xpc_send_local_activate_IRQ_uv(struct xpc_partition *part, int act_state_req) struct xpc_partition_uv *part_uv = &part->sn.uv; /* - * !!! Make our side think that the remote parition sent an activate + * !!! Make our side think that the remote partition sent an activate * !!! message our way by doing what the activate IRQ handler would * !!! do had one really been sent. */ @@ -660,8 +660,33 @@ static enum xp_retval xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa, size_t *len) { - /* !!! call the UV version of sn_partition_reserved_page_pa() */ - return xpUnsupported; + s64 status; + enum xp_retval ret; + +#if defined CONFIG_X86_64 + status = uv_bios_reserved_page_pa((u64)buf, cookie, (u64 *)rp_pa, + (u64 *)len); + if (status == BIOS_STATUS_SUCCESS) + ret = xpSuccess; + else if (status == BIOS_STATUS_MORE_PASSES) + ret = xpNeedMoreInfo; + else + ret = xpBiosError; + +#elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len); + if (status == SALRET_OK) + ret = xpSuccess; + else if (status == SALRET_MORE_PASSES) + ret = xpNeedMoreInfo; + else + ret = xpSalError; + +#else + #error not a supported configuration +#endif + + return ret; } static int -- cgit v1.2.3-70-g09d2 From a3d732f93785da17e0137210deadb4616f5536fc Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Mon, 10 Nov 2008 16:16:31 -0600 Subject: x86, UV: fix redundant creation of sgi_uv Impact: fix double entry creation in /proc There is a collision between two UV functions: both uv_ptc_init() and gru_proc_init() try to make /proc/sgi_uv So move it's creation to a single place: uv_system_init() Signed-off-by: Cliff Wickman Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_uv_x.c | 2 ++ arch/x86/kernel/tlb_uv.c | 4 ---- drivers/misc/sgi-gru/gruprocfs.c | 1 - 3 files changed, 2 insertions(+), 5 deletions(-) (limited to 'drivers/misc') diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 85fb7dd48f6..d7213a1cb78 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include @@ -570,4 +571,5 @@ void __init uv_system_init(void) uv_cpu_init(); uv_scir_register_cpu_notifier(); + proc_mkdir("sgi_uv", NULL); } diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 04431f34fd1..6a00e5faaa7 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -566,14 +566,10 @@ static int __init uv_ptc_init(void) if (!is_uv_system()) return 0; - if (!proc_mkdir("sgi_uv", NULL)) - return -EINVAL; - proc_uv_ptc = create_proc_entry(UV_PTC_BASENAME, 0444, NULL); if (!proc_uv_ptc) { printk(KERN_ERR "unable to create %s proc entry\n", UV_PTC_BASENAME); - remove_proc_entry("sgi_uv", NULL); return -EINVAL; } proc_uv_ptc->proc_fops = &proc_uv_ptc_operations; diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c index 533923f83f1..73b0ca061bb 100644 --- a/drivers/misc/sgi-gru/gruprocfs.c +++ b/drivers/misc/sgi-gru/gruprocfs.c @@ -317,7 +317,6 @@ int gru_proc_init(void) { struct proc_entry *p; - proc_mkdir("sgi_uv", NULL); proc_gru = proc_mkdir("sgi_uv/gru", NULL); for (p = proc_files; p->name; p++) -- cgit v1.2.3-70-g09d2 From c8182f0016fb65a721c4fbe487909a2d56178135 Mon Sep 17 00:00:00 2001 From: Russ Anderson Date: Fri, 12 Dec 2008 11:07:00 -0600 Subject: sgi-xp: xpc needs to pass the physical address, not virtual Impact: fix crash xpc needs to pass the physical address, not virtual. Testing uncovered this problem. The virtual address happens to work most of the time due to the way bios was masking off the node bits. Passing the physical address makes it work all of the time. Signed-off-by: Russ Anderson Acked-by: Dean Nelson Signed-off-by: Ingo Molnar --- arch/x86/include/asm/uv/bios.h | 2 +- arch/x86/kernel/bios_uv.c | 4 +--- drivers/misc/sgi-xp/xpc_uv.c | 8 ++++---- 3 files changed, 6 insertions(+), 8 deletions(-) (limited to 'drivers/misc') diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h index da1c4e8e78f..7ed17ff502b 100644 --- a/arch/x86/include/asm/uv/bios.h +++ b/arch/x86/include/asm/uv/bios.h @@ -100,7 +100,7 @@ extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64); extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *); extern s64 uv_bios_freq_base(u64, u64 *); -extern int uv_bios_mq_watchlist_alloc(int, void *, unsigned int, +extern int uv_bios_mq_watchlist_alloc(int, unsigned long, unsigned int, unsigned long *); extern int uv_bios_mq_watchlist_free(int, int); extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect); diff --git a/arch/x86/kernel/bios_uv.c b/arch/x86/kernel/bios_uv.c index d22d0f1bbea..2a0a2a3cac2 100644 --- a/arch/x86/kernel/bios_uv.c +++ b/arch/x86/kernel/bios_uv.c @@ -101,15 +101,13 @@ s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher, } int -uv_bios_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size, +uv_bios_mq_watchlist_alloc(int blade, unsigned long addr, unsigned int mq_size, unsigned long *intr_mmr_offset) { union uv_watchlist_u size_blade; - unsigned long addr; u64 watchlist; s64 ret; - addr = (unsigned long)mq; size_blade.size = mq_size; size_blade.blade = blade; diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index 684b2dd1758..91a55b1b103 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -119,16 +119,16 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq) int ret; #if defined CONFIG_X86_64 - ret = uv_bios_mq_watchlist_alloc(mq->mmr_blade, mq->address, mq->order, - &mq->mmr_offset); + ret = uv_bios_mq_watchlist_alloc(mq->mmr_blade, uv_gpa(mq->address), + mq->order, &mq->mmr_offset); if (ret < 0) { dev_err(xpc_part, "uv_bios_mq_watchlist_alloc() failed, " "ret=%d\n", ret); return ret; } #elif defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV - ret = sn_mq_watchlist_alloc(mq->mmr_blade, mq->address, mq->order, - &mq->mmr_offset); + ret = sn_mq_watchlist_alloc(mq->mmr_blade, uv_gpa(mq->address), + mq->order, &mq->mmr_offset); if (ret < 0) { dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n", ret); -- cgit v1.2.3-70-g09d2