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 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Date: Thu, 05 Sep 2019 08:02:56 -0500 [thread overview] Message-ID: <20190905130253.092121232@stormcage.eag.rdlabs.hpecorp.net> (raw) In-Reply-To: <20190905130252.590161292@stormcage.eag.rdlabs.hpecorp.net> [-- Attachment #1: setup-hubless-init --] [-- Type: text/plain, Size: 2124 bytes --] Add more support for UV systems that do not contain a UV Hub (AKA "hubless"). This update adds support for additional functions required: Use PCH NMI handler instead of a UV Hub NMI handler. Initialize the UV BIOS callback interface used to support specific UV functions. 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 Cc: stable@vger.kernel.org --- arch/x86/kernel/apic/x2apic_uv_x.c | 20 +++++++++++++++++--- 1 file changed, 17 insertions(+), 3 deletions(-) --- linux.orig/arch/x86/kernel/apic/x2apic_uv_x.c +++ linux/arch/x86/kernel/apic/x2apic_uv_x.c @@ -1457,6 +1457,20 @@ static void __init build_socket_tables(v } } +/* Initialize UV hubless systems */ +static __init int uv_system_init_hubless(void) +{ + int rc; + + /* Setup PCH NMI handler */ + uv_nmi_setup_hubless(); + + /* Init kernel/BIOS interface */ + rc = uv_bios_init(); + + return rc; +} + static void __init uv_system_init_hub(void) { struct uv_hub_info_s hub_info = {0}; @@ -1596,8 +1610,8 @@ static void __init uv_system_init_hub(vo } /* - * There is a small amount of UV specific code needed to initialize a - * UV system that does not have a "UV HUB" (referred to as "hubless"). + * There is a different code path needed to initialize a UV system that does + * not have a "UV HUB" (referred to as "hubless"). */ void __init uv_system_init(void) { @@ -1607,7 +1621,7 @@ void __init uv_system_init(void) if (is_uv_system()) uv_system_init_hub(); else - uv_nmi_setup_hubless(); + uv_system_init_hubless(); } apic_driver(apic_x2apic_uv_x); --
next prev parent reply other threads:[~2019-09-05 13:03 UTC|newest] Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-09-05 13:02 [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis 2019-09-05 13:02 ` [PATCH 1/8] x86/platform/uv: Save OEM_ID from ACPI MADT probe Mike Travis 2019-09-05 13:02 ` [PATCH 2/8] x86/platform/uv: Return UV Hubless System Type Mike Travis 2019-09-05 13:02 ` [PATCH 3/8] x86/platform/uv: Add return code to UV BIOS Init function Mike Travis 2019-09-05 13:02 ` Mike Travis [this message] 2019-09-05 13:02 ` [PATCH 5/8] x86/platform/uv: Add UV Hubbed/Hubless Proc FS Files 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 2019-09-05 13:02 ` [PATCH 7/8] x86/platform/uv: Check EFI Boot to set reboot type Mike Travis 2019-09-05 13:03 ` [PATCH 8/8] x86/platform/uv: Account for UV Hubless in is_uvX_hub Ops Mike Travis 2019-09-10 12:07 ` [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Miguel Ojeda 2019-09-10 15:34 ` Mike Travis 2019-09-10 16:40 ` Borislav Petkov 2019-09-10 16:57 ` Mike Travis -- strict thread matches above, loose matches on Subject: below -- 2019-09-10 14:58 [PATCH V2 " 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 2019-09-10 14:46 [PATCH V2 0/8] x86/platform/UV: Update UV Hubless System Support 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 14:31 [PATCH V2 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis 2019-09-10 14:31 ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis 2019-09-05 18:47 [PATCH 0/8] x86/platform/UV: Update UV Hubless System Support Mike Travis 2019-09-05 18:47 ` [PATCH 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems 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 4/8] x86/platform/uv: Setup UV functions for Hubless UV Systems Mike Travis
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