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authorArthur Heymans <arthur@aheymans.xyz>2018-06-03 12:26:58 +0200
committerArthur Heymans <arthur@aheymans.xyz>2018-06-05 07:58:57 +0000
commit02b13fd8cdfbfcb4858ec0e6f66688b96950198e (patch)
tree1faac362cb685c090ac6b2ccc08feb9f9e44235b /src
parent6fcd7b8eb1ee650daa939593e8cbb3939f7c1188 (diff)
downloadcoreboot-02b13fd8cdfbfcb4858ec0e6f66688b96950198e.tar.xz
cpu/intel/model_2065x: Switch to POSTCAR_STAGE
Also removes some non-POSTCAR_STAGE functions, since those are unused now. Change-Id: I439bffbe39411186355d374eed7d5efd63fb02e3 Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/26792 Reviewed-by: Matthias Gazzari <mail@qtux.eu> Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
-rw-r--r--src/cpu/intel/model_2065x/Makefile.inc4
-rw-r--r--src/cpu/intel/model_2065x/cache_as_ram.inc304
-rw-r--r--src/northbridge/intel/nehalem/Kconfig2
-rw-r--r--src/northbridge/intel/nehalem/Makefile.inc2
-rw-r--r--src/northbridge/intel/nehalem/ram_calc.c14
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. */
}