New patch to review: ba66858 Add xhcbios and ahcibios rom handling

[Frank Vibrans III]

Frank Vibrans III ([e-mail]) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/109

-gerrit

commit ba66858bbb5708c1add2aab61f70106154132b4e
Author: efdesign98 
Date:   Fri Jul 15 17:10:43 2011 -0700

Add xhcbios and ahcibios rom handling

This change adds to the arch/x86 Makefile.inc, handling
    for xhci and ahci bios roms that is similar to the handling
    of vgabios roms.  It also correct a comment in the lapic_
    cpu)init.c file.

Change-Id: I527a906323ae483cfa2ca0785f3adb43e88fd84b
    Signed-off-by: Frank Vibrans 
    Signed-off-by: efdesign98 
---
 src/arch/x86/Makefile.inc          |   10 ++++++++++
 src/cpu/x86/lapic/lapic_cpu_init.c |   33 ++++++++++++++++++++++++++++++++-
 2 files changed, 42 insertions(+), 1 deletions(-)

diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
old mode 100644
new mode 100755
index e9c00de..cf41055
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -25,6 +25,11 @@ subdirs-y += boot
 subdirs-y += lib
 subdirs-y += smp

+stripped_xhcbios_id = $(call strip_quotes,$(CONFIG_XHC_BIOS_ID))
+cbfs-files-$(CONFIG_XHC_BIOS) += pci$(stripped_xhcbios_id).rom
+pci$(stripped_xhcbios_id).rom-file := $(call strip_quotes,$(CONFIG_XHC_BIOS_FILE))
+pci$(stripped_xhcbios_id).rom-type := optionrom
+
 OPTION_TABLE_H:=
 ifeq ($(CONFIG_HAVE_OPTION_TABLE),y)
 cbfs-files-y += cmos_layout.bin
@@ -115,6 +120,11 @@ cbfs-files-$(CONFIG_VGA_BIOS) += pci$(stripped_vgabios_id).rom
 pci$(stripped_vgabios_id).rom-file := $(call strip_quotes,$(CONFIG_VGA_BIOS_FILE))
 pci$(stripped_vgabios_id).rom-type := optionrom

+stripped_ahcibios_id = $(call strip_quotes,$(CONFIG_AHCI_BIOS_ID))
+cbfs-files-$(CONFIG_AHCI_BIOS) += pci$(stripped_ahcibios_id).rom
+pci$(stripped_ahcibios_id).rom-file := $(call strip_quotes,$(CONFIG_AHCI_BIOS_FILE))
+pci$(stripped_ahcibios_id).rom-type := optionrom
+
 cbfs-files-$(CONFIG_INTEL_MBI) += mbi.bin
 mbi.bin-file := $(call strip_quotes,$(CONFIG_MBI_FILE))
 mbi.bin-type := mbi
diff --git a/src/cpu/x86/lapic/lapic_cpu_init.c b/src/cpu/x86/lapic/lapic_cpu_init.c
old mode 100644
new mode 100755
index 53bbe79..53ea60d
--- a/src/cpu/x86/lapic/lapic_cpu_init.c
+++ b/src/cpu/x86/lapic/lapic_cpu_init.c
@@ -262,7 +262,7 @@ int start_cpu(device_t cpu)

if (result) {
    	result = 0;
-		/* Wait 1s or until the new the new cpu calls in */
+		/* Wait 1s or until the new cpu calls in */
    	for(count = 0; count < 100000 ; count++) {
    		if (secondary_stack == 0) {
    			result = 1;
@@ -338,6 +338,26 @@ void stop_this_cpu(void)
 }
 #endif

+#ifdef __SSE3__
+static __inline__ __attribute__((always_inline)) unsigned long readcr4(void)
+{
+	unsigned long value;
+	__asm__ __volatile__ (
+			"mov %%cr4, %[value]" 
+			: [value] "=a" (value));
+	return value;
+}
+
+static __inline__ __attribute__((always_inline)) void writecr4(unsigned long Data)
+{
+	__asm__ __volatile__ (
+			"mov %%eax, %%cr4"
+			: 
+			: "a" (Data)
+			);
+}
+#endif
+
 /* C entry point of secondary cpus */
 void secondary_cpu_init(void)
 {
@@ -347,6 +367,17 @@ void secondary_cpu_init(void)
    spin_lock(&start_cpu_lock);
   #endif
 #endif
+
+#ifdef __SSE3__
+	/*
+	 * Seems that CR4 was cleared when AP start via lapic_start_cpu()
+	 * Turn on CR4.OSFXSR and CR4.OSXMMEXCPT when SSE options enabled
+	 */
+	u32 cr4_val;
+	cr4_val = readcr4();
+	cr4_val |= (1 << 9 | 1 << 10);
+	writecr4(cr4_val);
+#endif
    cpu_initialize();
 #if CONFIG_SERIAL_CPU_INIT == 1
   #if CONFIG_MAX_CPUS>2