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Date: Thu, 16 Jul 2009 03:55:04 -0700
From: "Pan, Jacob jun" <jacob.jun.pan@...el.com>
To: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"x86@...nel.org" <x86@...nel.org>
Subject: [PATCH v2 5/10] x86: add moorestown related setup code
>From b94a617ac1efaae78d8c3d88b646afbe194b0b5d Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@...el.com>
Date: Wed, 15 Jul 2009 13:05:04 -0700
Subject: [PATCH] x86: add moorestown related setup code
Intel moorestown platform does not contain many devices found on a PC.
This patch adds x86_quirks and assigns platform feature sets for
Moorestown.
The impact to other platform is that we have to move x86_quirks out of
__initdata such that setup_secondary_clock quirk can be used at runtime
this is needed by moorestown per cpu external timer.
Signed-off-by: Jacob Pan <jacob.jun.pan@...el.com>
---
arch/x86/include/asm/setup.h | 6 +++++
arch/x86/kernel/Makefile | 1 +
arch/x86/kernel/mrst.c | 48 ++++++++++++++++++++++++++++++++++++++++++
arch/x86/kernel/setup.c | 2 +-
4 files changed, 56 insertions(+), 1 deletions(-)
create mode 100644 arch/x86/kernel/mrst.c
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index c0839f7..9da2e9a 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -84,6 +84,12 @@ static inline int is_visws_box(void) { return 0; }
extern struct x86_quirks *x86_quirks;
extern unsigned long saved_video_mode;
+#ifdef CONFIG_MRST
+extern void setup_mrst_default_feature(void);
+#else
+static inline void setup_mrst_default_feature(void) { };
+#endif
+
#ifndef CONFIG_PARAVIRT
#define paravirt_post_allocator_init() do {} while (0)
#endif
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 8d1ae61..370aba5 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -103,6 +103,7 @@ obj-$(CONFIG_SCx200) += scx200.o
scx200-y += scx200_32.o
obj-$(CONFIG_OLPC) += olpc.o
+obj-$(CONFIG_MRST) += mrst.o
microcode-y := microcode_core.o
microcode-$(CONFIG_MICROCODE_INTEL) += microcode_intel.o
diff --git a/arch/x86/kernel/mrst.c b/arch/x86/kernel/mrst.c
new file mode 100644
index 0000000..e2476e8
--- /dev/null
+++ b/arch/x86/kernel/mrst.c
@@ -0,0 +1,48 @@
+/*
+ * mrst.c: Intel Moorestown platform specific setup code
+ *
+ * (C) Copyright 2008 Intel Corporation
+ * Author: Jacob Pan (jacob.jun.pan@...el.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ *
+ * Note:
+ *
+ */
+
+#include <asm/platform_feature.h>
+#include <asm/apb_timer.h>
+#include <asm/setup.h>
+#include <asm/apic.h>
+
+static int __init mrst_pre_intr_init(void)
+{
+#ifdef CONFIG_X86_IO_APIC
+ if (platform_has(X86_PLATFORM_FEATURE_APBT)) {
+ pre_init_apic_IRQ();
+ return 1;
+ }
+#endif
+ return 0;
+}
+
+static struct x86_quirks mrst_x86_quirks = {
+ .arch_pre_intr_init = mrst_pre_intr_init,
+ .setup_secondary_clock = apbt_setup_secondary_clock,
+ .reserve_ebda_region = NULL,
+};
+
+inline void setup_mrst_default_feature(void)
+{
+ clear_all_platform_feature();
+ platform_feature_set_flag(X86_PLATFORM_FEATURE_SFI);
+ platform_feature_set_flag(X86_PLATFORM_FEATURE_IOAPIC);
+ platform_feature_set_flag(X86_PLATFORM_FEATURE_APBT);
+ platform_feature_set_flag(X86_PLATFORM_FEATURE_VRTC);
+ platform_feature_set_flag(X86_PLATFORM_FEATURE_PCISHIM);
+
+ x86_quirks = &mrst_x86_quirks;
+}
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index e063689..be56f82 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -640,7 +640,7 @@ early_param("elfcorehdr", setup_elfcorehdr);
static struct x86_quirks default_x86_quirks __initdata;
-struct x86_quirks *x86_quirks __initdata = &default_x86_quirks;
+struct x86_quirks *x86_quirks = &default_x86_quirks;
#ifdef CONFIG_X86_RESERVE_LOW_64K
static int __init dmi_low_memory_corruption(const struct dmi_system_id *d)
--
1.5.6.5
--
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