From 908787db9b95f548270af18d83d62b9d2020ca10 Mon Sep 17 00:00:00 2001 From: Dean Nelson Date: Tue, 29 Jul 2008 22:34:05 -0700 Subject: sgi-xp: create a common xp_remote_memcpy() function Create a common remote memcpy function that maps to what the hardware booted supports. Signed-off-by: Dean Nelson Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/misc/sgi-xp/xpc_partition.c | 55 ++++++++++++++++--------------------- 1 file changed, 24 insertions(+), 31 deletions(-) (limited to 'drivers/misc/sgi-xp/xpc_partition.c') diff --git a/drivers/misc/sgi-xp/xpc_partition.c b/drivers/misc/sgi-xp/xpc_partition.c index 02a858eddd8..6c82f205097 100644 --- a/drivers/misc/sgi-xp/xpc_partition.c +++ b/drivers/misc/sgi-xp/xpc_partition.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include @@ -92,7 +91,7 @@ xpc_kmalloc_cacheline_aligned(size_t size, gfp_t flags, void **base) static u64 xpc_get_rsvd_page_pa(int nasid) { - bte_result_t bte_res; + enum xp_retval ret; s64 status; u64 cookie = 0; u64 rp_pa = nasid; /* seed with nasid */ @@ -113,6 +112,7 @@ xpc_get_rsvd_page_pa(int nasid) if (status != SALRET_MORE_PASSES) break; + /* >>> L1_CACHE_ALIGN() is only a sn2-bte_copy requirement */ if (L1_CACHE_ALIGN(len) > buf_len) { kfree(buf_base); buf_len = L1_CACHE_ALIGN(len); @@ -127,10 +127,9 @@ xpc_get_rsvd_page_pa(int nasid) } } - bte_res = xp_bte_copy(rp_pa, buf, buf_len, - (BTE_NOTIFY | BTE_WACQUIRE), NULL); - if (bte_res != BTE_SUCCESS) { - dev_dbg(xpc_part, "xp_bte_copy failed %i\n", bte_res); + ret = xp_remote_memcpy((void *)buf, (void *)rp_pa, buf_len); + if (ret != xpSuccess) { + dev_dbg(xpc_part, "xp_remote_memcpy failed %d\n", ret); status = SALRET_ERROR; break; } @@ -398,7 +397,7 @@ xpc_check_remote_hb(void) struct xpc_vars *remote_vars; struct xpc_partition *part; short partid; - bte_result_t bres; + enum xp_retval ret; remote_vars = (struct xpc_vars *)xpc_remote_copy_buffer; @@ -418,13 +417,11 @@ xpc_check_remote_hb(void) } /* pull the remote_hb cache line */ - bres = xp_bte_copy(part->remote_vars_pa, - (u64)remote_vars, - XPC_RP_VARS_SIZE, - (BTE_NOTIFY | BTE_WACQUIRE), NULL); - if (bres != BTE_SUCCESS) { - XPC_DEACTIVATE_PARTITION(part, - xpc_map_bte_errors(bres)); + ret = xp_remote_memcpy(remote_vars, + (void *)part->remote_vars_pa, + XPC_RP_VARS_SIZE); + if (ret != xpSuccess) { + XPC_DEACTIVATE_PARTITION(part, ret); continue; } @@ -457,7 +454,8 @@ static enum xp_retval xpc_get_remote_rp(int nasid, u64 *discovered_nasids, struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa) { - int bres, i; + int i; + enum xp_retval ret; /* get the reserved page's physical address */ @@ -466,11 +464,10 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids, return xpNoRsvdPageAddr; /* pull over the reserved page header and part_nasids mask */ - bres = xp_bte_copy(*remote_rp_pa, (u64)remote_rp, - XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes, - (BTE_NOTIFY | BTE_WACQUIRE), NULL); - if (bres != BTE_SUCCESS) - return xpc_map_bte_errors(bres); + ret = xp_remote_memcpy(remote_rp, (void *)*remote_rp_pa, + XPC_RP_HEADER_SIZE + xp_nasid_mask_bytes); + if (ret != xpSuccess) + return ret; if (discovered_nasids != NULL) { u64 *remote_part_nasids = XPC_RP_PART_NASIDS(remote_rp); @@ -504,16 +501,16 @@ xpc_get_remote_rp(int nasid, u64 *discovered_nasids, static enum xp_retval xpc_get_remote_vars(u64 remote_vars_pa, struct xpc_vars *remote_vars) { - int bres; + enum xp_retval ret; if (remote_vars_pa == 0) return xpVarsNotSet; /* pull over the cross partition variables */ - bres = xp_bte_copy(remote_vars_pa, (u64)remote_vars, XPC_RP_VARS_SIZE, - (BTE_NOTIFY | BTE_WACQUIRE), NULL); - if (bres != BTE_SUCCESS) - return xpc_map_bte_errors(bres); + ret = xp_remote_memcpy(remote_vars, (void *)remote_vars_pa, + XPC_RP_VARS_SIZE); + if (ret != xpSuccess) + return ret; if (XPC_VERSION_MAJOR(remote_vars->version) != XPC_VERSION_MAJOR(XPC_V_VERSION)) { @@ -1148,7 +1145,6 @@ xpc_initiate_partid_to_nasids(short partid, void *nasid_mask) { struct xpc_partition *part; u64 part_nasid_pa; - int bte_res; part = &xpc_partitions[partid]; if (part->remote_rp_pa == 0) @@ -1158,9 +1154,6 @@ xpc_initiate_partid_to_nasids(short partid, void *nasid_mask) part_nasid_pa = (u64)XPC_RP_PART_NASIDS(part->remote_rp_pa); - bte_res = xp_bte_copy(part_nasid_pa, (u64)nasid_mask, - xp_nasid_mask_bytes, (BTE_NOTIFY | BTE_WACQUIRE), - NULL); - - return xpc_map_bte_errors(bte_res); + return xp_remote_memcpy(nasid_mask, (void *)part_nasid_pa, + xp_nasid_mask_bytes); } -- cgit v1.2.3