diff options
| -rw-r--r-- | src/cpu/intel/model_2065x/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/cache_as_ram.inc | 304 | ||||
| -rw-r--r-- | src/northbridge/intel/nehalem/Kconfig | 2 | ||||
| -rw-r--r-- | src/northbridge/intel/nehalem/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/northbridge/intel/nehalem/ram_calc.c | 14 |
5 files changed, 11 insertions, 315 deletions
diff --git a/src/cpu/intel/model_2065x/Makefile.inc b/src/cpu/intel/model_2065x/Makefile.inc index 44d74603b2..ec8643a204 100644 --- a/src/cpu/intel/model_2065x/Makefile.inc +++ b/src/cpu/intel/model_2065x/Makefile.inc @@ -20,11 +20,7 @@ smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c cpu_microcode_bins += 3rdparty/blobs/cpu/intel/model_2065x/microcode.bin -ifneq ($(CONFIG_POSTCAR_STAGE),y) -cpu_incs-y += $(src)/cpu/intel/model_2065x/cache_as_ram.inc -else cpu_incs-y += $(src)/cpu/intel/car/non-evict/cache_as_ram.S postcar-y += ../car/non-evict/exit_car.S -endif romstage-y += ../car/romstage.c diff --git a/src/cpu/intel/model_2065x/cache_as_ram.inc b/src/cpu/intel/model_2065x/cache_as_ram.inc deleted file mode 100644 index 6cc995838e..0000000000 --- a/src/cpu/intel/model_2065x/cache_as_ram.inc +++ /dev/null @@ -1,304 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2000,2007 Ronald G. Minnich <rminnich@gmail.com> - * Copyright (C) 2007-2008 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. - */ - -#include <cpu/x86/mtrr.h> -#include <cpu/x86/cache.h> -#include <cpu/x86/post_code.h> - -#define CACHE_AS_RAM_SIZE CONFIG_DCACHE_RAM_SIZE -#define CACHE_AS_RAM_BASE CONFIG_DCACHE_RAM_BASE - -#define CPU_PHYSMASK_HI (1 << (CONFIG_CPU_ADDR_BITS - 32) - 1) - -#define NoEvictMod_MSR 0x2e0 - - /* Save the BIST result. */ - movl %eax, %ebp - -cache_as_ram: - post_code(0x20) - - /* Send INIT IPI to all excluding ourself. */ - movl $0x000C4500, %eax - movl $0xFEE00300, %esi - movl %eax, (%esi) - - /* All CPUs need to be in Wait for SIPI state */ -wait_for_sipi: - movl (%esi), %eax - bt $12, %eax - jc wait_for_sipi - - post_code(0x21) - /* Clean-up MTRR_DEF_TYPE_MSR. */ - movl $MTRR_DEF_TYPE_MSR, %ecx - xorl %eax, %eax - xorl %edx, %edx - wrmsr - - post_code(0x22) - /* Zero out all fixed range MTRRs. */ - movl $mtrr_table, %esi - movl $((mtrr_table_end - mtrr_table) >> 1), %edi - xorl %eax, %eax - xorl %edx, %edx -clear_mtrrs: - movw (%esi), %bx - movzx %bx, %ecx - wrmsr - add $2, %esi - dec %edi - jnz clear_mtrrs - - /* Zero out all variable range MTRRs. */ - movl $MTRR_CAP_MSR, %ecx - rdmsr - andl $0xff, %eax - shl $1, %eax - movl %eax, %edi - movl $0x200, %ecx - xorl %eax, %eax - xorl %edx, %edx -clear_var_mtrrs: - wrmsr - add $1, %ecx - dec %edi - jnz clear_var_mtrrs - - post_code(0x23) - /* Set Cache-as-RAM base address. */ - movl $(MTRR_PHYS_BASE(0)), %ecx - movl $(CACHE_AS_RAM_BASE | MTRR_TYPE_WRBACK), %eax - xorl %edx, %edx - wrmsr - - post_code(0x24) - /* Set Cache-as-RAM mask. */ - movl $(MTRR_PHYS_MASK(0)), %ecx - movl $(~(CACHE_AS_RAM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax - movl $CPU_PHYSMASK_HI, %edx - wrmsr - - post_code(0x25) - - /* Enable MTRR. */ - movl $MTRR_DEF_TYPE_MSR, %ecx - rdmsr - orl $MTRR_DEF_TYPE_EN, %eax - wrmsr - - /* Enable cache (CR0.CD = 0, CR0.NW = 0). */ - movl %cr0, %eax - andl $(~(CR0_CacheDisable | CR0_NoWriteThrough)), %eax - invd - movl %eax, %cr0 - - /* enable the 'no eviction' mode */ - movl $NoEvictMod_MSR, %ecx - rdmsr - orl $1, %eax - andl $~2, %eax - wrmsr - - /* Clear the cache memory region. This will also fill up the cache. */ - movl $CACHE_AS_RAM_BASE, %esi - movl %esi, %edi - movl $(CACHE_AS_RAM_SIZE >> 2), %ecx - // movl $0x23322332, %eax - xorl %eax, %eax - rep stosl - - /* enable the 'no eviction run' state */ - movl $NoEvictMod_MSR, %ecx - rdmsr - orl $3, %eax - wrmsr - - post_code(0x26) - /* Enable Cache-as-RAM mode by disabling cache. */ - movl %cr0, %eax - orl $CR0_CacheDisable, %eax - movl %eax, %cr0 - - /* Enable cache for our code in Flash because we do XIP here */ - movl $MTRR_PHYS_BASE(1), %ecx - xorl %edx, %edx - /* - * IMPORTANT: The following calculation _must_ be done at runtime. See - * https://www.coreboot.org/pipermail/coreboot/2010-October/060855.html - */ - movl $copy_and_run, %eax - andl $(~(CONFIG_XIP_ROM_SIZE - 1)), %eax - orl $MTRR_TYPE_WRPROT, %eax - wrmsr - - movl $MTRR_PHYS_MASK(1), %ecx - movl $CPU_PHYSMASK_HI, %edx - movl $(~(CONFIG_XIP_ROM_SIZE - 1) | MTRR_PHYS_MASK_VALID), %eax - wrmsr - - post_code(0x28) - /* Enable cache. */ - movl %cr0, %eax - andl $(~(CR0_CacheDisable | CR0_NoWriteThrough)), %eax - movl %eax, %cr0 - - /* Setup the stack. */ - movl $(CONFIG_DCACHE_RAM_BASE + CONFIG_DCACHE_RAM_SIZE), %eax - movl %eax, %esp - - /* Restore the BIST result. */ - movl %ebp, %eax - movl %esp, %ebp - pushl %eax - -before_romstage: - post_code(0x29) - /* Call romstage.c main function. */ - call romstage_main - /* Save return value from romstage_main. It contains the stack to use - * after cache-as-ram is torn down. It also contains the information - * for setting up MTRRs. */ - movl %eax, %esp - - post_code(0x30) - - /* Disable cache. */ - movl %cr0, %eax - orl $CR0_CacheDisable, %eax - movl %eax, %cr0 - - post_code(0x31) - - /* Disable MTRR. */ - movl $MTRR_DEF_TYPE_MSR, %ecx - rdmsr - andl $(~MTRR_DEF_TYPE_EN), %eax - wrmsr - - post_code(0x32) - - /* Disable the no eviction run state */ - movl $NoEvictMod_MSR, %ecx - rdmsr - andl $~2, %eax - wrmsr - - invd - - /* Disable the no eviction mode */ - rdmsr - andl $~1, %eax - wrmsr - - post_code(0x33) - - /* Enable cache. */ - movl %cr0, %eax - andl $~(CR0_CacheDisable | CR0_NoWriteThrough), %eax - movl %eax, %cr0 - - post_code(0x36) - - /* Disable cache. */ - movl %cr0, %eax - orl $CR0_CacheDisable, %eax - movl %eax, %cr0 - - post_code(0x38) - - /* Clear all of the variable MTRRs. */ - popl %ebx - movl $MTRR_PHYS_BASE(0), %ecx - clr %eax - clr %edx - -1: - testl %ebx, %ebx - jz 1f - wrmsr /* Write MTRR base. */ - inc %ecx - wrmsr /* Write MTRR mask. */ - inc %ecx - dec %ebx - jmp 1b - -1: - /* Get number of MTRRs. */ - popl %ebx - movl $MTRR_PHYS_BASE(0), %ecx -2: - testl %ebx, %ebx - jz 2f - - /* Low 32 bits of MTRR base. */ - popl %eax - /* Upper 32 bits of MTRR base. */ - popl %edx - /* Write MTRR base. */ - wrmsr - inc %ecx - /* Low 32 bits of MTRR mask. */ - popl %eax - /* Upper 32 bits of MTRR mask. */ - popl %edx - /* Write MTRR mask. */ - wrmsr - inc %ecx - - dec %ebx - jmp 2b -2: - - post_code(0x39) - - /* And enable cache again after setting MTRRs. */ - movl %cr0, %eax - andl $~(CR0_CacheDisable | CR0_NoWriteThrough), %eax - movl %eax, %cr0 - - post_code(0x3a) - - /* Enable MTRR. */ - movl $MTRR_DEF_TYPE_MSR, %ecx - rdmsr - orl $MTRR_DEF_TYPE_EN, %eax - wrmsr - - post_code(0x3b) - - /* Invalidate the cache again. */ - invd - - post_code(0x3c) - -__main: - post_code(POST_PREPARE_RAMSTAGE) - cld /* Clear direction flag. */ - call romstage_after_car - -.Lhlt: - post_code(POST_DEAD_CODE) - hlt - jmp .Lhlt - -mtrr_table: - /* Fixed MTRRs */ - .word 0x250, 0x258, 0x259 - .word 0x268, 0x269, 0x26A - .word 0x26B, 0x26C, 0x26D - .word 0x26E, 0x26F -mtrr_table_end: diff --git a/src/northbridge/intel/nehalem/Kconfig b/src/northbridge/intel/nehalem/Kconfig index 573fdfe208..4689c1a096 100644 --- a/src/northbridge/intel/nehalem/Kconfig +++ b/src/northbridge/intel/nehalem/Kconfig @@ -24,6 +24,8 @@ config NORTHBRIDGE_INTEL_NEHALEM select CACHE_MRC_SETTINGS select HAVE_LINEAR_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT select HAVE_VGA_TEXT_FRAMEBUFFER if MAINBOARD_DO_NATIVE_VGA_INIT + select POSTCAR_STAGE + select POSTCAR_CONSOLE if NORTHBRIDGE_INTEL_NEHALEM diff --git a/src/northbridge/intel/nehalem/Makefile.inc b/src/northbridge/intel/nehalem/Makefile.inc index acb828c1c5..6722621ba1 100644 --- a/src/northbridge/intel/nehalem/Makefile.inc +++ b/src/northbridge/intel/nehalem/Makefile.inc @@ -29,4 +29,6 @@ romstage-y += ../../../arch/x86/walkcbfs.S smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c +postcar-y += ram_calc.c + endif diff --git a/src/northbridge/intel/nehalem/ram_calc.c b/src/northbridge/intel/nehalem/ram_calc.c index bbf84f98d7..a8c33a04ff 100644 --- a/src/northbridge/intel/nehalem/ram_calc.c +++ b/src/northbridge/intel/nehalem/ram_calc.c @@ -39,9 +39,10 @@ void *cbmem_top(void) #define ROMSTAGE_RAM_STACK_SIZE 0x5000 -/* setup_stack_and_mtrrs() determines the stack to use after - * cache-as-ram is torn down as well as the MTRR settings to use. */ -void *setup_stack_and_mtrrs(void) +/* platform_enter_postcar() determines the stack to use after + * cache-as-ram is torn down as well as the MTRR settings to use, + * and continues execution in postcar stage. */ +void platform_enter_postcar(void) { struct postcar_frame pcf; uintptr_t top_of_ram; @@ -63,8 +64,7 @@ void *setup_stack_and_mtrrs(void) postcar_frame_add_mtrr(&pcf, top_of_ram - 8*MiB, 8*MiB, MTRR_TYPE_WRBACK); postcar_frame_add_mtrr(&pcf, top_of_ram, 8*MiB, MTRR_TYPE_WRBACK); - /* Save the number of MTRRs to setup. Return the stack location - * pointing to the number of MTRRs. - */ - return postcar_commit_mtrrs(&pcf); + run_postcar_phase(&pcf); + + /* We do not return here. */ } |