linux-kernel - [PATCH RESEND v5 3/8] x86/platform/uv: Fix printed information in calc_mmioh

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Date:   Fri, 19 May 2023 14:07:47 -0500
From:   Steve Wahl <steve.wahl@....com>
To:     Steve Wahl <steve.wahl@....com>,
        Dimitri Sivanich <dimitri.sivanich@....com>,
        Russ Anderson <russ.anderson@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org
Subject: [PATCH RESEND v5 3/8] x86/platform/uv: Fix printed information in calc_mmioh_map

Fix incorrect mask names and values in calc_mmioh_map() that caused it
to print wrong NASID information. And an unused blade position is not
an error condition, but will yield an invalid NASID value, so change
the invalid NASID message from an error to a debug message.

Signed-off-by: Steve Wahl <steve.wahl@....com>
---
 arch/x86/kernel/apic/x2apic_uv_x.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 482855227964..6d2739eadb71 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1022,7 +1022,7 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
 	switch (index) {
 	case UVY_MMIOH0:
 		mmr = UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG0;
-		nasid_mask = UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK;
+		nasid_mask = UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK;
 		n = UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG0_DEPTH;
 		min_nasid = min_pnode;
 		max_nasid = max_pnode;
@@ -1030,7 +1030,7 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
 		break;
 	case UVY_MMIOH1:
 		mmr = UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG1;
-		nasid_mask = UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK;
+		nasid_mask = UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK;
 		n = UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG1_DEPTH;
 		min_nasid = min_pnode;
 		max_nasid = max_pnode;
@@ -1038,7 +1038,7 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
 		break;
 	case UVX_MMIOH0:
 		mmr = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0;
-		nasid_mask = UVH_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK;
+		nasid_mask = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK;
 		n = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0_DEPTH;
 		min_nasid = min_pnode * 2;
 		max_nasid = max_pnode * 2;
@@ -1046,7 +1046,7 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
 		break;
 	case UVX_MMIOH1:
 		mmr = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1;
-		nasid_mask = UVH_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK;
+		nasid_mask = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK;
 		n = UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1_DEPTH;
 		min_nasid = min_pnode * 2;
 		max_nasid = max_pnode * 2;
@@ -1072,8 +1072,9 @@ static void __init calc_mmioh_map(enum mmioh_arch index,
 
 		/* Invalid NASID check */
 		if (nasid < min_nasid || max_nasid < nasid) {
-			pr_err("UV:%s:Invalid NASID:%x (range:%x..%x)\n",
-				__func__, index, min_nasid, max_nasid);
+			/* Not an error: unused table entries get "poison" values */
+			pr_debug("UV:%s:Invalid NASID(%x):%x (range:%x..%x)\n",
+			       __func__, index, nasid, min_nasid, max_nasid);
 			nasid = -1;
 		}
 
-- 
2.26.2