The following commit has been merged into the x86/platform branch of tip: Commit-ID: 327c348988c6f0bacd7abd29c151f37bdf1e2a02 Gitweb: https://git.kernel.org/tip/327c348988c6f0bacd7abd29c151f37bdf1e2a02 Author: Mike Travis <mike.travis@xxxxxxx> AuthorDate: Wed, 06 Apr 2022 14:51:49 -05:00 Committer: Borislav Petkov <bp@xxxxxxx> CommitterDate: Thu, 07 Apr 2022 17:25:15 +02:00 x86/platform/uv: Log gap hole end size Show value of gap end in the kernel log which equates to number of physical address bits used by system. Signed-off-by: Mike Travis <mike.travis@xxxxxxx> Signed-off-by: Steve Wahl <steve.wahl@xxxxxxx> Signed-off-by: Borislav Petkov <bp@xxxxxxx> Acked-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220406195149.228164-4-steve.wahl@xxxxxxx --- arch/x86/kernel/apic/x2apic_uv_x.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index a6e9c27..4828552 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -1346,7 +1346,7 @@ static void __init decode_gam_params(unsigned long ptr) static void __init decode_gam_rng_tbl(unsigned long ptr) { struct uv_gam_range_entry *gre = (struct uv_gam_range_entry *)ptr; - unsigned long lgre = 0; + unsigned long lgre = 0, gend = 0; int index = 0; int sock_min = 999999, pnode_min = 99999; int sock_max = -1, pnode_max = -1; @@ -1380,6 +1380,9 @@ static void __init decode_gam_rng_tbl(unsigned long ptr) flag, size, suffix[order], gre->type, gre->nasid, gre->sockid, gre->pnode); + if (gre->type == UV_GAM_RANGE_TYPE_HOLE) + gend = (unsigned long)gre->limit << UV_GAM_RANGE_SHFT; + /* update to next range start */ lgre = gre->limit; if (sock_min > gre->sockid) @@ -1397,7 +1400,8 @@ static void __init decode_gam_rng_tbl(unsigned long ptr) _max_pnode = pnode_max; _gr_table_len = index; - pr_info("UV: GRT: %d entries, sockets(min:%x,max:%x) pnodes(min:%x,max:%x)\n", index, _min_socket, _max_socket, _min_pnode, _max_pnode); + pr_info("UV: GRT: %d entries, sockets(min:%x,max:%x), pnodes(min:%x,max:%x), gap_end(%d)\n", + index, _min_socket, _max_socket, _min_pnode, _max_pnode, fls64(gend)); } /* Walk through UVsystab decoding the fields */
![]() |