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From: Mike Travis <mike.travis@hpe.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	Borislav Petkov <bp@alien8.de>,
	Christoph Hellwig <hch@infradead.org>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>,
	Russ Anderson <russ.anderson@hpe.com>,
	Hedi Berriche <hedi.berriche@hpe.com>,
	Steve Wahl <steve.wahl@hpe.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org,
	stable@vger.kernel.org
Subject: [PATCH 6/8] x86/platform/uv: Decode UVsystab Info
Date: Thu, 05 Sep 2019 13:47:47 -0500	[thread overview]
Message-ID: <20190905184742.071307157@stormcage.eag.rdlabs.hpecorp.net> (raw)
In-Reply-To: 20190905184741.256857552@stormcage.eag.rdlabs.hpecorp.net

[-- Attachment #1: decode-hubless-uvst --]
[-- Type: text/plain, Size: 1659 bytes --]

Decode the hubless UVsystab passed from BIOS to the kernel saving
pertinent info in a similar manner that hubbed UVsystabs are decoded.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
To: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@redhat.com>
To: H. Peter Anvin <hpa@zytor.com>
To: Andrew Morton <akpm@linux-foundation.org>
To: Borislav Petkov <bp@alien8.de>
To: Christoph Hellwig <hch@infradead.org>
Cc: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Hedi Berriche <hedi.berriche@hpe.com>
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: x86@kernel.org
Cc: linux-kernel@vger.kernel.org
---
 arch/x86/kernel/apic/x2apic_uv_x.c |   12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

--- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c
+++ linux/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -1303,7 +1303,8 @@ static int __init decode_uv_systab(void)
 	struct uv_systab *st;
 	int i;
 
-	if (uv_hub_info->hub_revision < UV4_HUB_REVISION_BASE)
+	/* Select only UV4 (hubbed or hubless) and higher */
+	if (is_uv_hubbed(-2) < uv(4) && is_uv_hubless(-2) < uv(4))
 		return 0;	/* No extended UVsystab required */
 
 	st = uv_systab;
@@ -1554,8 +1555,15 @@ static __init int uv_system_init_hubless
 
 	/* Init kernel/BIOS interface */
 	rc = uv_bios_init();
+	if (rc < 0)
+		return rc;
 
-	/* Create user access node if UVsystab available */
+	/* Process UVsystab */
+	rc = decode_uv_systab();
+	if (rc < 0)
+		return rc;
+
+	/* Create user access node */
 	if (rc >= 0)
 		uv_setup_proc_files(1);
 

-- 

  parent reply	other threads:[~2019-09-05 18:49 UTC|newest]

Thread overview: 62+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-05 18:47 [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis
2019-09-05 18:47 ` [PATCH 1/8] x86/platform/uv: Save OEM_ID from ACPI MADT probe Mike Travis
2019-09-05 18:47 ` [PATCH 2/8] x86/platform/uv: Return UV Hubless System Type Mike Travis
2019-09-05 18:47 ` [PATCH 3/8] x86/platform/uv: Add return code to UV BIOS Init function Mike Travis
2019-09-05 18:47 ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis
2019-09-05 18:47 ` [PATCH 5/8] x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files Mike Travis
2019-09-05 18:47 ` Mike Travis [this message]
2019-09-05 18:47 ` [PATCH 7/8] x86/platform/uv: Check EFI Boot to set reboot type Mike Travis
2019-09-05 18:47 ` [PATCH 8/8] x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops Mike Travis
2019-09-05 19:02 ` [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Thomas Gleixner
2019-09-05 19:08   ` Mike Travis
2019-09-05 19:14     ` Thomas Gleixner
2019-09-10 14:31 ` [PATCH V2 " Mike Travis
2019-09-10 14:31   ` [PATCH 1/8] x86/platform/uv: Save OEM_ID from ACPI MADT probe Mike Travis
2019-09-10 14:31   ` [PATCH V2 2/8] x86/platform/uv: Return UV Hubless System Type Mike Travis
2019-09-10 14:31   ` [PATCH 3/8] x86/platform/uv: Add return code to UV BIOS Init function Mike Travis
2019-09-10 14:31   ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis
2019-09-10 14:31   ` [PATCH V2 5/8] x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files Mike Travis
2019-09-10 14:31   ` [PATCH V2 6/8] x86/platform/uv: Decode UVsystab Info Mike Travis
2019-09-10 14:31   ` [PATCH 7/8] x86/platform/uv: Check EFI Boot to set reboot type Mike Travis
2019-09-10 14:31   ` [PATCH V2 8/8] x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops Mike Travis
2019-09-10 14:46 ` [PATCH V2 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis
2019-09-10 14:46   ` [PATCH 1/8] x86/platform/uv: Save OEM_ID from ACPI MADT probe Mike Travis
2019-09-10 14:46   ` [PATCH V2 2/8] x86/platform/uv: Return UV Hubless System Type Mike Travis
2019-09-10 14:46   ` [PATCH 3/8] x86/platform/uv: Add return code to UV BIOS Init function Mike Travis
2019-09-10 14:46   ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis
2019-09-10 14:46   ` [PATCH V2 5/8] x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files Mike Travis
2019-09-10 14:46   ` [PATCH V2 6/8] x86/platform/uv: Decode UVsystab Info Mike Travis
2019-09-10 14:46   ` [PATCH 7/8] x86/platform/uv: Check EFI Boot to set reboot type Mike Travis
2019-09-10 14:46   ` [PATCH V2 8/8] x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops Mike Travis
2019-09-10 14:58 ` [PATCH V2 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis
2019-09-10 14:58   ` [PATCH 1/8] x86/platform/uv: Save OEM_ID from ACPI MADT probe Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH V2 2/8] x86/platform/uv: Return UV Hubless System Type Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH 3/8] x86/platform/uv: Add return code to UV BIOS Init function Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis
2019-09-11  6:07     ` Ingo Molnar
2019-09-11 20:44       ` Mike Travis
2019-09-11 20:58         ` Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH V2 5/8] x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files Mike Travis
2019-09-11  6:04     ` Ingo Molnar
2019-09-11 16:05       ` Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH V2 6/8] x86/platform/uv: Decode UVsystab Info Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH 7/8] x86/platform/uv: Check EFI Boot to set reboot type Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
2019-09-10 14:58   ` [PATCH V2 8/8] x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops Mike Travis
2019-10-07 14:49     ` [tip: x86/platform] " tip-bot2 for Mike Travis
  -- strict thread matches above, loose matches on Subject: below --
2019-09-05 13:02 [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis
2019-09-05 13:02 ` [PATCH 6/8] x86/platform/uv: Decode UVsystab Info Mike Travis
2019-09-05 14:16   ` Greg KH
2019-09-05 14:47     ` Mike Travis
2019-09-05 16:43       ` Mike Travis
2019-09-05 16:57         ` Greg KH
2019-09-05 16:56       ` Greg KH
2019-09-05 21:40     ` Sasha Levin
2019-09-05 22:42       ` Mike Travis
2019-09-03  0:18 [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis
2019-09-03  0:18 ` [PATCH 6/8] x86/platform/uv: Decode UVsystab Info Mike Travis
2019-09-03  6:22   ` Greg KH

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