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-rw-r--r--src/cpu/intel/car/cache_as_ram.inc (renamed from src/cpu/x86/car/cache_as_ram.inc)157
-rw-r--r--src/cpu/intel/model_6bx/cache_as_ram_disable.c89
-rw-r--r--src/cpu/intel/socket_mFCBGA479/Makefile.inc2
-rw-r--r--src/cpu/x86/car/cache_as_ram_post.c86
4 files changed, 121 insertions, 213 deletions
diff --git a/src/cpu/x86/car/cache_as_ram.inc b/src/cpu/intel/car/cache_as_ram.inc
index 1b160ea20c..2f2a9ca81f 100644
--- a/src/cpu/x86/car/cache_as_ram.inc
+++ b/src/cpu/intel/car/cache_as_ram.inc
@@ -126,6 +126,19 @@ clear_fixed_var_mtrr:
wrmsr
jmp clear_fixed_var_mtrr
+
+fixed_mtrr_msr:
+ .long 0x250, 0x258, 0x259
+ .long 0x268, 0x269, 0x26A
+ .long 0x26B, 0x26C, 0x26D
+ .long 0x26E, 0x26F
+var_mtrr_msr:
+ .long 0x200, 0x201, 0x202, 0x203
+ .long 0x204, 0x205, 0x206, 0x207
+ .long 0x208, 0x209, 0x20A, 0x20B
+ .long 0x20C, 0x20D, 0x20E, 0x20F
+ .long 0x000 /* NULL, end of table */
+
clear_fixed_var_mtrr_out:
/* 0x06 is the WB IO type for a given 4k segment.
@@ -289,48 +302,118 @@ lout:
/* We need to set ebp ? No need */
movl %esp, %ebp
pushl %eax /* bist */
- call stage1_main
- /* We will not go back */
+ call main
+
+ /*
+ FIXME : backup stack in CACHE_AS_RAM into mmx and sse and after we get STACK up, we restore that.
+ It is only needed if we want to go back
+ */
+
+ /* We don't need cache as ram for now on */
+ /* disable cache */
+ movl %cr0, %eax
+ orl $(0x1<<30),%eax
+ movl %eax, %cr0
+
+ /* clear sth */
+ movl $0x269, %ecx /* fix4k_c8000*/
+ xorl %edx, %edx
+ xorl %eax, %eax
+ wrmsr
-fixed_mtrr_msr:
- .long 0x250, 0x258, 0x259
- .long 0x268, 0x269, 0x26A
- .long 0x26B, 0x26C, 0x26D
- .long 0x26E, 0x26F
-var_mtrr_msr:
- .long 0x200, 0x201, 0x202, 0x203
- .long 0x204, 0x205, 0x206, 0x207
- .long 0x208, 0x209, 0x20A, 0x20B
- .long 0x20C, 0x20D, 0x20E, 0x20F
- .long 0x000 /* NULL, end of table */
+#if CONFIG_DCACHE_RAM_SIZE > 0x8000
+ movl $0x268, %ecx /* fix4k_c0000*/
+ wrmsr
+#endif
- .align 0x1000
- .code16
-.global LogicalAP_SIPI
-LogicalAP_SIPI:
- // cr0 register is shared among the logical processors;
- // so clear CD & NW bits so that the BSP's cr0 register
- // controls the cache behavior
- // Note: The cache behavior is determined by "OR" result
- // of the cr0 registers of the logical processors
+ /* Set the default memory type and disable fixed and enable variable MTRRs */
+ movl $0x2ff, %ecx
+// movl $MTRRdefType_MSR, %ecx
+ xorl %edx, %edx
+ /* Enable Variable and Disable Fixed MTRRs */
+ movl $0x00000800, %eax
+ wrmsr
- movl %cr0, %eax
- andl $0x9FFFFFFF, %eax
- movl %eax, %cr0
+#if defined(CLEAR_FIRST_1M_RAM)
+ /* enable caching for first 1M using variable mtrr */
+ movl $0x200, %ecx
+ xorl %edx, %edx
+ movl $(0 | 1), %eax
+// movl $(0 | MTRR_TYPE_WRCOMB), %eax
+ wrmsr
- finit
+ movl $0x201, %ecx
+ movl $0x0000000f, %edx /* AMD 40 bit 0xff*/
+ movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax
+ wrmsr
+#endif
- // Set the semaphore to indicate the Logical AP is done
- // with CAR specific initialization
- movl $0x250, %ecx
- movl $0x06, %eax
- xorl %edx, %edx
+ /* enable cache */
+ movl %cr0, %eax
+ andl $0x9fffffff,%eax
+ movl %eax, %cr0
+
+#if defined(CLEAR_FIRST_1M_RAM)
+ /* clear the first 1M */
+ movl $0x0, %edi
+ cld
+ movl $(0x100000>>2), %ecx
+ xorl %eax, %eax
+ rep stosl
+
+ /* disable cache */
+ movl %cr0, %eax
+ orl $(0x1<<30),%eax
+ movl %eax, %cr0
+
+ /* enable caching for first 1M using variable mtrr */
+ movl $0x200, %ecx
+ xorl %edx, %edx
+ movl $(0 | 6), %eax
+// movl $(0 | MTRR_TYPE_WRBACK), %eax
wrmsr
- // Halt this AP
- cli
-Halt_LogicalAP:
+ movl $0x201, %ecx
+ movl $0x0000000f, %edx /* AMD 40 bit 0xff*/
+ movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax
+ wrmsr
+
+ /* enable cache */
+ movl %cr0, %eax
+ andl $0x9fffffff,%eax
+ movl %eax, %cr0
+ invd
+
+ /* FIXME: I hope we don't need to change esp and ebp value here, so we
+ * can restore value from mmx sse back But the problem is the range is
+ * some io related, So don't go back
+ */
+#endif
+
+ /* clear boot_complete flag */
+ xorl %ebp, %ebp
+__main:
+ post_code(0x11)
+ cld /* clear direction flag */
+
+ movl %ebp, %esi
+
+ /* For now: use CONFIG_RAMBASE + 1MB - 64K (counting downwards) as stack. This
+ * makes sure that we stay completely within the 1M-64K of memory that we
+ * preserve for suspend/resume.
+ */
+
+#ifndef HIGH_MEMORY_SAVE
+#warning Need a central place for HIGH_MEMORY_SAVE
+#define HIGH_MEMORY_SAVE ( (1024 - 64) * 1024 )
+#endif
+ movl $(CONFIG_RAMBASE + HIGH_MEMORY_SAVE), %esp
+ movl %esp, %ebp
+ pushl %esi
+ call copy_and_run
+
+.Lhlt:
+ post_code(0xee)
hlt
- jmp Halt_LogicalAP
- .code32
-.CacheAsRam_out:
+ jmp .Lhlt
+
diff --git a/src/cpu/intel/model_6bx/cache_as_ram_disable.c b/src/cpu/intel/model_6bx/cache_as_ram_disable.c
deleted file mode 100644
index d3f34982b6..0000000000
--- a/src/cpu/intel/model_6bx/cache_as_ram_disable.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2007-2009 coresystems GmbH
- *
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
- * MA 02110-1301 USA
- */
-
-#include <arch/stages.h>
-
-/* called from assembler code */
-void stage1_main(unsigned long bist);
-
-/* from romstage.c */
-void real_main(unsigned long bist);
-
-void stage1_main(unsigned long bist)
-{
- unsigned int cpu_reset = 0;
-
- real_main(bist);
-
- /* No servicable parts below this line .. */
-#ifdef CAR_DEBUG
- /* Check value of esp to verify if we have enough rom for stack in Cache as RAM */
- unsigned v_esp;
- __asm__ volatile (
- "movl %%esp, %0\n"
- : "=a" (v_esp)
- );
- printk(BIOS_SPEW, "v_esp=%08x\n", v_esp);
-#endif
-
- printk(BIOS_SPEW, "cpu_reset = %08x\n", cpu_reset);
- printk(BIOS_SPEW, "No cache as ram now - ");
-
- /* store cpu_reset to ebx */
- __asm__ volatile (
- "movl %0, %%ebx\n\t"
- ::"a" (cpu_reset)
- );
-
-#undef CLEAR_FIRST_1M_RAM
-#include "cpu/x86/car/cache_as_ram_post.c"
-
- /* For now: use rambase + 1MB - 64K (counting downwards) as stack. This
- * makes sure that we stay completely within the 1M of memory we
- * preserve with the memcpy above.
- */
-
-#ifndef HIGH_MEMORY_SAVE
-#define HIGH_MEMORY_SAVE ( (1024 - 64) * 1024 )
-#endif
-
- __asm__ volatile (
- "movl %0, %%ebp\n"
- "movl %0, %%esp\n"
- :: "a" (CONFIG_RAMBASE + HIGH_MEMORY_SAVE)
- );
-
- {
- unsigned new_cpu_reset;
-
- /* get back cpu_reset from ebx */
- __asm__ volatile (
- "movl %%ebx, %0\n"
- :"=a" (new_cpu_reset)
- );
-
- /* Copy and execute coreboot_ram */
- copy_and_run(new_cpu_reset);
- }
-
- /* We will not return */
- printk(BIOS_DEBUG, "sorry. parachute did not open.\n");
-}
diff --git a/src/cpu/intel/socket_mFCBGA479/Makefile.inc b/src/cpu/intel/socket_mFCBGA479/Makefile.inc
index af503c8c4a..9f7ca6637c 100644
--- a/src/cpu/intel/socket_mFCBGA479/Makefile.inc
+++ b/src/cpu/intel/socket_mFCBGA479/Makefile.inc
@@ -7,4 +7,4 @@ subdirs-y += ../../x86/cache
subdirs-y += ../../x86/smm
subdirs-y += ../microcode
-cpu_incs += $(src)/cpu/x86/car/cache_as_ram.inc
+cpu_incs += $(src)/cpu/intel/car/cache_as_ram.inc
diff --git a/src/cpu/x86/car/cache_as_ram_post.c b/src/cpu/x86/car/cache_as_ram_post.c
deleted file mode 100644
index f78fb03675..0000000000
--- a/src/cpu/x86/car/cache_as_ram_post.c
+++ /dev/null
@@ -1,86 +0,0 @@
-
- __asm__ volatile (
- /*
- FIXME : backup stack in CACHE_AS_RAM into mmx and sse and after we get STACK up, we restore that.
- It is only needed if we want to go back
- */
-
- /* We don't need cache as ram for now on */
- /* disable cache */
- "movl %cr0, %eax\n\t"
- "orl $(0x1<<30),%eax\n\t"
- "movl %eax, %cr0\n\t"
-
- /* clear sth */
- "movl $0x269, %ecx\n\t" /* fix4k_c8000*/
- "xorl %edx, %edx\n\t"
- "xorl %eax, %eax\n\t"
- "wrmsr\n\t"
-#if CONFIG_DCACHE_RAM_SIZE > 0x8000
- "movl $0x268, %ecx\n\t" /* fix4k_c0000*/
- "wrmsr\n\t"
-#endif
-
- /* Set the default memory type and disable fixed and enable variable MTRRs */
- "movl $0x2ff, %ecx\n\t"
-// "movl $MTRRdefType_MSR, %ecx\n\t"
- "xorl %edx, %edx\n\t"
- /* Enable Variable and Disable Fixed MTRRs */
- "movl $0x00000800, %eax\n\t"
- "wrmsr\n\t"
-
-#if defined(CLEAR_FIRST_1M_RAM)
- /* enable caching for first 1M using variable mtrr */
- "movl $0x200, %ecx\n\t"
- "xorl %edx, %edx\n\t"
- "movl $(0 | 1), %eax\n\t"
-// "movl $(0 | MTRR_TYPE_WRCOMB), %eax\n\t"
- "wrmsr\n\t"
-
- "movl $0x201, %ecx\n\t"
- "movl $0x0000000f, %edx\n\t" /* AMD 40 bit 0xff*/
- "movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
- "wrmsr\n\t"
-#endif
-
- /* enable cache */
- "movl %cr0, %eax\n\t"
- "andl $0x9fffffff,%eax\n\t"
- "movl %eax, %cr0\n\t"
-#if defined(CLEAR_FIRST_1M_RAM)
- /* clear the first 1M */
- "movl $0x0, %edi\n\t"
- "cld\n\t"
- "movl $(0x100000>>2), %ecx\n\t"
- "xorl %eax, %eax\n\t"
- "rep stosl\n\t"
-
- /* disable cache */
- "movl %cr0, %eax\n\t"
- "orl $(0x1<<30),%eax\n\t"
- "movl %eax, %cr0\n\t"
-
- /* enable caching for first 1M using variable mtrr */
- "movl $0x200, %ecx\n\t"
- "xorl %edx, %edx\n\t"
- "movl $(0 | 6), %eax\n\t"
-// "movl $(0 | MTRR_TYPE_WRBACK), %eax\n\t"
- "wrmsr\n\t"
-
- "movl $0x201, %ecx\n\t"
- "movl $0x0000000f, %edx\n\t" /* AMD 40 bit 0xff*/
- "movl $((~(( 0 + 0x100000) - 1)) | 0x800), %eax\n\t"
- "wrmsr\n\t"
-
- /* enable cache */
- "movl %cr0, %eax\n\t"
- "andl $0x9fffffff,%eax\n\t"
- "movl %eax, %cr0\n\t"
- "invd\n\t"
-
- /*
- FIXME: I hope we don't need to change esp and ebp value here, so we can restore value from mmx sse back
- But the problem is the range is some io related, So don't go back
- */
-#endif
- );
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 00:02:52 +0000