[PATCH 1/5] x86/platform/uv: Add kernel interfaces for obtaining system info.

From: Mike Travis <mike.travis@hpe.com>
To: Hans de Goede <hdegoede@redhat.com>,
	Justin Ernst <justin.ernst@hpe.com>,
	Mark Gross <mgross@linux.intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	x86@kernel.org, Steve Wahl <steve.wahl@hpe.com>
Cc: Mike Travis <mike.travis@hpe.com>,
	Dimitri Sivanich <dimitri.sivanich@hpe.com>,
	Russ Anderson <russ.anderson@hpe.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Ilya Dryomov <idryomov@gmail.com>,
	linux-kernel@vger.kernel.org,
	platform-driver-x86@vger.kernel.org
Subject: [PATCH 1/5] x86/platform/uv: Add kernel interfaces for obtaining system info.
Date: Wed, 25 Nov 2020 11:29:03 -0600	[thread overview]
Message-ID: <20201125172907.240996-2-mike.travis@hpe.com> (raw)
In-Reply-To: <20201125172907.240996-1-mike.travis@hpe.com>

Add kernel interfaces used to obtain info for the uv_sysfs driver
to display.

Signed-off-by: Mike Travis <mike.travis@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
---
 arch/x86/include/asm/uv/bios.h     |  2 ++
 arch/x86/kernel/apic/x2apic_uv_x.c | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 01ba080887b3..1b6455f881f9 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -200,6 +200,8 @@ extern long sn_partition_id;
 extern long sn_coherency_id;
 extern long sn_region_size;
 extern long system_serial_number;
+extern ssize_t uv_get_archtype(char *buf, int len);
+extern int uv_get_hubless_system(void);
 
 extern struct kobject *sgi_uv_kobj;	/* /sys/firmware/sgi_uv */
 
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 1b98f8c12b96..48746031b39a 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -502,6 +502,18 @@ enum uv_system_type get_uv_system_type(void)
 	return uv_system_type;
 }
 
+int uv_get_hubless_system(void)
+{
+	return uv_hubless_system;
+}
+EXPORT_SYMBOL_GPL(uv_get_hubless_system);
+
+ssize_t uv_get_archtype(char *buf, int len)
+{
+	return scnprintf(buf, len, "%s/%s", uv_archtype, oem_table_id);
+}
+EXPORT_SYMBOL_GPL(uv_get_archtype);
+
 int is_uv_system(void)
 {
 	return uv_system_type != UV_NONE;
-- 
2.21.0

