From c2c9f115741453715d6b4da1cd2de65af8c7ad86 Mon Sep 17 00:00:00 2001 From: Robin Holt Date: Tue, 15 Dec 2009 16:47:56 -0800 Subject: x86: uv: update XPC to handle updated BIOS interface The UV BIOS has moved the location of some of their pointers to the "partition reserved page" from memory into a uv hub MMR. The GRU does not support bcopy operations from MMR space so we need to special case the MMR addresses using VLOAD operations. Additionally, the BIOS call for registering a message queue watchlist has removed the 'blade' value and eliminated the structure that was being passed in. This is also reflected in this patch. Signed-off-by: Robin Holt Cc: Jack Steiner Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-xp/xp_uv.c | 23 +++++++++++++++++++++++ drivers/misc/sgi-xp/xpc_partition.c | 13 +++++++++---- drivers/misc/sgi-xp/xpc_uv.c | 27 +++++++++++++++------------ 3 files changed, 47 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c index 1e61f8a61a3..a0d093274dc 100644 --- a/drivers/misc/sgi-xp/xp_uv.c +++ b/drivers/misc/sgi-xp/xp_uv.c @@ -41,12 +41,35 @@ xp_socket_pa_uv(unsigned long gpa) return uv_gpa_to_soc_phys_ram(gpa); } +static enum xp_retval +xp_remote_mmr_read(unsigned long dst_gpa, const unsigned long src_gpa, + size_t len) +{ + int ret; + unsigned long *dst_va = __va(uv_gpa_to_soc_phys_ram(dst_gpa)); + + BUG_ON(!uv_gpa_in_mmr_space(src_gpa)); + BUG_ON(len != 8); + + ret = gru_read_gpa(dst_va, src_gpa); + if (ret == 0) + return xpSuccess; + + dev_err(xp, "gru_read_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx " + "len=%ld\n", dst_gpa, src_gpa, len); + return xpGruCopyError; +} + + static enum xp_retval xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa, size_t len) { int ret; + if (uv_gpa_in_mmr_space(src_gpa)) + return xp_remote_mmr_read(dst_gpa, src_gpa, len); + ret = gru_copy_gpa(dst_gpa, src_gpa, len); if (ret == 0) return xpSuccess; diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c index 65877bc5eda..9a6268c89fd 100644 --- a/drivers/misc/sgi-xp/xpc_partition.c +++ b/drivers/misc/sgi-xp/xpc_partition.c @@ -18,6 +18,7 @@ #include #include #include "xpc.h" +#include /* XPC is exiting flag */ int xpc_exiting; @@ -92,8 +93,12 @@ xpc_get_rsvd_page_pa(int nasid) break; /* !!! L1_CACHE_ALIGN() is only a sn2-bte_copy requirement */ - if (L1_CACHE_ALIGN(len) > buf_len) { - kfree(buf_base); + if (is_shub()) + len = L1_CACHE_ALIGN(len); + + if (len > buf_len) { + if (buf_base != NULL) + kfree(buf_base); buf_len = L1_CACHE_ALIGN(len); buf = xpc_kmalloc_cacheline_aligned(buf_len, GFP_KERNEL, &buf_base); @@ -105,7 +110,7 @@ xpc_get_rsvd_page_pa(int nasid) } } - ret = xp_remote_memcpy(xp_pa(buf), rp_pa, buf_len); + ret = xp_remote_memcpy(xp_pa(buf), rp_pa, len); if (ret != xpSuccess) { dev_dbg(xpc_part, "xp_remote_memcpy failed %d\n", ret); break; @@ -143,7 +148,7 @@ xpc_setup_rsvd_page(void) dev_err(xpc_part, "SAL failed to locate the reserved page\n"); return -ESRCH; } - rp = (struct xpc_rsvd_page *)__va(rp_pa); + rp = (struct xpc_rsvd_page *)__va(xp_socket_pa(rp_pa)); if (rp->SAL_version < 3) { /* SAL_versions < 3 had a SAL_partid defined as a u8 */ diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index b5bbe59f9c5..bbf0e2ee6fd 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -157,22 +157,24 @@ 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, 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, (void *)uv_gpa(mq->address), +#if defined CONFIG_IA64_GENERIC || defined CONFIG_IA64_SGI_UV + int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade); + + ret = sn_mq_watchlist_alloc(mmr_pnode, (void *)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); return -EBUSY; } +#elif defined CONFIG_X86_64 + ret = uv_bios_mq_watchlist_alloc(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; + } #else #error not a supported configuration #endif @@ -185,12 +187,13 @@ static void xpc_gru_mq_watchlist_free_uv(struct xpc_gru_mq_uv *mq) { int ret; + int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade); #if defined CONFIG_X86_64 - ret = uv_bios_mq_watchlist_free(mq->mmr_blade, mq->watchlist_num); + ret = uv_bios_mq_watchlist_free(mmr_pnode, 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); + ret = sn_mq_watchlist_free(mmr_pnode, mq->watchlist_num); BUG_ON(ret != SALRET_OK); #else #error not a supported configuration -- cgit v1.2.3-18-g5258