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-rw-r--r--src/cpu/intel/haswell/haswell_init.c3
-rw-r--r--src/cpu/intel/haswell/mp_init.c15
-rw-r--r--src/cpu/x86/Kconfig7
-rw-r--r--src/cpu/x86/mtrr/mtrr.c76
-rw-r--r--src/include/cpu/x86/mtrr.h23
-rw-r--r--src/lib/coreboot_table.c20
-rw-r--r--src/mainboard/google/Kconfig5
-rw-r--r--src/mainboard/google/bolt/Kconfig1
-rw-r--r--src/mainboard/google/falco/Kconfig1
-rw-r--r--src/mainboard/google/peppy/Kconfig1
-rw-r--r--src/mainboard/google/slippy/Kconfig1
-rw-r--r--src/mainboard/intel/wtm2/Kconfig1
-rw-r--r--src/northbridge/intel/fsp_sandybridge/Kconfig4
-rw-r--r--src/northbridge/intel/nehalem/northbridge.c2
-rw-r--r--src/northbridge/intel/sandybridge/northbridge.c2
-rw-r--r--src/soc/intel/baytrail/Kconfig1
16 files changed, 0 insertions, 163 deletions
diff --git a/src/cpu/intel/haswell/haswell_init.c b/src/cpu/intel/haswell/haswell_init.c
index dc6012bced..b7bea20734 100644
--- a/src/cpu/intel/haswell/haswell_init.c
+++ b/src/cpu/intel/haswell/haswell_init.c
@@ -789,9 +789,6 @@ void bsp_init_and_start_aps(struct bus *cpu_bus)
/* Restore the default SMM region. */
restore_default_smm_area(smm_save_area);
-
- /* Enable ROM caching if option was selected. */
- x86_mtrr_enable_rom_caching();
}
static struct device_operations cpu_dev_ops = {
diff --git a/src/cpu/intel/haswell/mp_init.c b/src/cpu/intel/haswell/mp_init.c
index 51130a56a3..03983605bd 100644
--- a/src/cpu/intel/haswell/mp_init.c
+++ b/src/cpu/intel/haswell/mp_init.c
@@ -143,14 +143,6 @@ void release_aps_for_smm_relocation(int do_parallel)
printk(BIOS_DEBUG, "Timed out waiting for AP SMM relocation\n");
}
-/* The mtrr code sets up ROM caching on the BSP, but not the others. However,
- * the boot loader payload disables this. In order for Linux not to complain
- * ensure the caching is disabled for the APs before going to sleep. */
-static void cleanup_rom_caching(void)
-{
- x86_mtrr_disable_rom_caching();
-}
-
/* By the time APs call ap_init() caching has been setup, and microcode has
* been loaded. */
static void asmlinkage ap_init(unsigned int cpu, void *microcode_ptr)
@@ -184,13 +176,6 @@ static void asmlinkage ap_init(unsigned int cpu, void *microcode_ptr)
/* After SMM relocation a 2nd microcode load is required. */
intel_microcode_load_unlocked(microcode_ptr);
- /* The MTRR resources are core scoped. Therefore, there is no need
- * to do the same work twice. Additionally, this check keeps the
- * ROM cache enabled on the BSP since its hyperthread sibling won't
- * call cleanup_rom_caching(). */
- if ((lapicid() & 1) == 0)
- cleanup_rom_caching();
-
/* FIXME(adurbin): park CPUs properly -- preferably somewhere in a
* reserved part of memory that the OS cannot get to. */
stop_this_cpu();
diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig
index 98238d8f06..19fa246fe2 100644
--- a/src/cpu/x86/Kconfig
+++ b/src/cpu/x86/Kconfig
@@ -76,13 +76,6 @@ config LOGICAL_CPUS
bool
default y
-config CACHE_ROM
- bool "Allow for caching system ROM."
- default n
- help
- When selected a variable range MTRR is allocated for coreboot and
- the bootloader enables caching of the system ROM for faster access.
-
config SMM_TSEG
bool
default n
diff --git a/src/cpu/x86/mtrr/mtrr.c b/src/cpu/x86/mtrr/mtrr.c
index d85a86982c..86e31d0010 100644
--- a/src/cpu/x86/mtrr/mtrr.c
+++ b/src/cpu/x86/mtrr/mtrr.c
@@ -199,16 +199,6 @@ static struct memranges *get_physical_address_space(void)
memranges_add_resources_filter(addr_space, mask, match, MTRR_TYPE_WRCOMB,
filter_vga_wrcomb);
-#if CONFIG_CACHE_ROM
- /* Add a write-protect region covering the ROM size
- * when CONFIG_CACHE_ROM is enabled. The ROM is assumed
- * to be located at 4GiB - rom size. */
- resource_t rom_base = RANGE_TO_PHYS_ADDR(
- RANGE_4GB - PHYS_TO_RANGE_ADDR(CACHE_ROM_SIZE));
- memranges_insert(addr_space, rom_base, CACHE_ROM_SIZE,
- MTRR_TYPE_WRPROT);
-#endif
-
/* The address space below 4GiB is special. It needs to be
* covered entirly by range entries so that MTRR calculations
* can be properly done for the full 32-bit address space.
@@ -380,61 +370,6 @@ void x86_setup_fixed_mtrrs(void)
enable_fixed_mtrr();
}
-/* Keep track of the MTRR that covers the ROM for caching purposes. */
-#if CONFIG_CACHE_ROM
-static long rom_cache_mtrr = -1;
-
-long x86_mtrr_rom_cache_var_index(void)
-{
- return rom_cache_mtrr;
-}
-
-void x86_mtrr_enable_rom_caching(void)
-{
- msr_t msr_val;
- unsigned long index;
-
- if (rom_cache_mtrr < 0)
- return;
-
- index = rom_cache_mtrr;
- disable_cache();
- msr_val = rdmsr(MTRRphysBase_MSR(index));
- msr_val.lo &= ~0xff;
- msr_val.lo |= MTRR_TYPE_WRPROT;
- wrmsr(MTRRphysBase_MSR(index), msr_val);
- enable_cache();
-}
-
-void x86_mtrr_disable_rom_caching(void)
-{
- msr_t msr_val;
- unsigned long index;
-
- if (rom_cache_mtrr < 0)
- return;
-
- index = rom_cache_mtrr;
- disable_cache();
- msr_val = rdmsr(MTRRphysBase_MSR(index));
- msr_val.lo &= ~0xff;
- wrmsr(MTRRphysBase_MSR(index), msr_val);
- enable_cache();
-}
-
-static void disable_cache_rom(void *unused)
-{
- x86_mtrr_disable_rom_caching();
-}
-
-BOOT_STATE_INIT_ENTRIES(disable_rom_cache_bscb) = {
- BOOT_STATE_INIT_ENTRY(BS_OS_RESUME, BS_ON_ENTRY,
- disable_cache_rom, NULL),
- BOOT_STATE_INIT_ENTRY(BS_PAYLOAD_LOAD, BS_ON_EXIT,
- disable_cache_rom, NULL),
-};
-#endif
-
struct var_mtrr_state {
struct memranges *addr_space;
int above4gb;
@@ -482,17 +417,6 @@ static void write_var_mtrr(struct var_mtrr_state *var_state,
mask = (1ULL << var_state->address_bits) - 1;
rsize = rsize & mask;
-#if CONFIG_CACHE_ROM
- /* CONFIG_CACHE_ROM allocates an MTRR specifically for allowing
- * one to turn on caching for faster ROM access. However, it is
- * left to the MTRR callers to enable it. */
- if (mtrr_type == MTRR_TYPE_WRPROT) {
- mtrr_type = MTRR_TYPE_UNCACHEABLE;
- if (rom_cache_mtrr < 0)
- rom_cache_mtrr = var_state->mtrr_index;
- }
-#endif
-
printk(BIOS_DEBUG, "MTRR: %d base 0x%016llx mask 0x%016llx type %d\n",
var_state->mtrr_index, rbase, rsize, mtrr_type);
diff --git a/src/include/cpu/x86/mtrr.h b/src/include/cpu/x86/mtrr.h
index 9414687552..2a440723b8 100644
--- a/src/include/cpu/x86/mtrr.h
+++ b/src/include/cpu/x86/mtrr.h
@@ -52,10 +52,6 @@
* of the nature of the global MTRR enable flag. Therefore, all direct
* or indirect callers of enable_fixed_mtrr() should ensure that the
* variable MTRR MSRs do not contain bad ranges.
- * 3. If CONFIG_CACHE_ROM is selected an MTRR is allocated for enabling
- * the caching of the ROM. However, it is set to uncacheable (UC). It
- * is the responsibility of the caller to enable it by calling
- * x86_mtrr_enable_rom_caching().
*/
void x86_setup_mtrrs(void);
/*
@@ -71,25 +67,6 @@ void x86_setup_fixed_mtrrs(void);
/* Set up fixed MTRRs but do not enable them. */
void x86_setup_fixed_mtrrs_no_enable(void);
int x86_mtrr_check(void);
-/* ROM caching can be used after variable MTRRs are set up. Beware that
- * enabling CONFIG_CACHE_ROM will eat through quite a few MTRRs based on
- * one's IO hole size and WRCOMB resources. Be sure to check the console
- * log when enabling CONFIG_CACHE_ROM or adding WRCOMB resources. Beware that
- * on CPUs with core-scoped MTRR registers such as hyperthreaded CPUs the
- * rom caching will be disabled if all threads run the MTRR code. Therefore,
- * one needs to call x86_mtrr_enable_rom_caching() after all threads of the
- * same core have run the MTRR code. */
-#if CONFIG_CACHE_ROM
-void x86_mtrr_enable_rom_caching(void);
-void x86_mtrr_disable_rom_caching(void);
-/* Return the variable range MTRR index of the ROM cache. */
-long x86_mtrr_rom_cache_var_index(void);
-#else
-static inline void x86_mtrr_enable_rom_caching(void) {}
-static inline void x86_mtrr_disable_rom_caching(void) {}
-static inline long x86_mtrr_rom_cache_var_index(void) { return -1; }
-#endif /* CONFIG_CACHE_ROM */
-
#endif
#if !defined(__ASSEMBLER__) && defined(__PRE_RAM__) && !defined(__ROMCC__)
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c
index d5dc14cc81..904185ab75 100644
--- a/src/lib/coreboot_table.c
+++ b/src/lib/coreboot_table.c
@@ -235,24 +235,6 @@ static inline void lb_vboot_handoff(struct lb_header *header) {}
#endif /* CONFIG_VBOOT_VERIFY_FIRMWARE */
#endif /* CONFIG_CHROMEOS */
-static void lb_x86_rom_cache(struct lb_header *header)
-{
-#if CONFIG_ARCH_X86
- long mtrr_index;
- struct lb_x86_rom_mtrr *lb_x86_rom_mtrr;
-
- mtrr_index = x86_mtrr_rom_cache_var_index();
-
- if (mtrr_index < 0)
- return;
-
- lb_x86_rom_mtrr = (struct lb_x86_rom_mtrr *)lb_new_record(header);
- lb_x86_rom_mtrr->tag = LB_TAG_X86_ROM_MTRR;
- lb_x86_rom_mtrr->size = sizeof(struct lb_x86_rom_mtrr);
- lb_x86_rom_mtrr->index = mtrr_index;
-#endif
-}
-
static void add_cbmem_pointers(struct lb_header *header)
{
/*
@@ -529,8 +511,6 @@ unsigned long write_coreboot_table(
lb_strings(head);
/* Record our framebuffer */
lb_framebuffer(head);
- /* Communicate x86 variable MTRR ROM cache information. */
- lb_x86_rom_cache(head);
#if CONFIG_CHROMEOS
/* Record our GPIO settings (ChromeOS specific) */
diff --git a/src/mainboard/google/Kconfig b/src/mainboard/google/Kconfig
index b86b0add59..85c85922ea 100644
--- a/src/mainboard/google/Kconfig
+++ b/src/mainboard/google/Kconfig
@@ -18,11 +18,6 @@
##
if VENDOR_GOOGLE
-# Auto select common options
-config VENDOR_SPECIFIC_OPTIONS
- def_bool y
- select CACHE_ROM
-
choice
prompt "Mainboard model"
diff --git a/src/mainboard/google/bolt/Kconfig b/src/mainboard/google/bolt/Kconfig
index 5247070e58..47d41edbcc 100644
--- a/src/mainboard/google/bolt/Kconfig
+++ b/src/mainboard/google/bolt/Kconfig
@@ -18,7 +18,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_SMI_HANDLER
select MAINBOARD_HAS_CHROMEOS
select EXTERNAL_MRC_BLOB
- select CACHE_ROM
select MONOTONIC_TIMER_MSR
config VBOOT_RAMSTAGE_INDEX
diff --git a/src/mainboard/google/falco/Kconfig b/src/mainboard/google/falco/Kconfig
index d8002060f1..5d19ffc1a8 100644
--- a/src/mainboard/google/falco/Kconfig
+++ b/src/mainboard/google/falco/Kconfig
@@ -18,7 +18,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_SMI_HANDLER
select MAINBOARD_HAS_CHROMEOS
select EXTERNAL_MRC_BLOB
- select CACHE_ROM
select MONOTONIC_TIMER_MSR
select DRIVERS_I2C_RTD2132
diff --git a/src/mainboard/google/peppy/Kconfig b/src/mainboard/google/peppy/Kconfig
index 6cac4766ab..f401feb7ab 100644
--- a/src/mainboard/google/peppy/Kconfig
+++ b/src/mainboard/google/peppy/Kconfig
@@ -18,7 +18,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_SMI_HANDLER
select MAINBOARD_HAS_CHROMEOS
select EXTERNAL_MRC_BLOB
- select CACHE_ROM
select MONOTONIC_TIMER_MSR
config VBOOT_RAMSTAGE_INDEX
diff --git a/src/mainboard/google/slippy/Kconfig b/src/mainboard/google/slippy/Kconfig
index 6980234caa..ba6a6fe9d5 100644
--- a/src/mainboard/google/slippy/Kconfig
+++ b/src/mainboard/google/slippy/Kconfig
@@ -18,7 +18,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_SMI_HANDLER
select MAINBOARD_HAS_CHROMEOS
select EXTERNAL_MRC_BLOB
- select CACHE_ROM
select MONOTONIC_TIMER_MSR
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MAINBOARD_DO_NATIVE_VGA_INIT
diff --git a/src/mainboard/intel/wtm2/Kconfig b/src/mainboard/intel/wtm2/Kconfig
index 8e13108af3..00ea604bb8 100644
--- a/src/mainboard/intel/wtm2/Kconfig
+++ b/src/mainboard/intel/wtm2/Kconfig
@@ -13,7 +13,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy
select HAVE_ACPI_RESUME
select HAVE_SMI_HANDLER
select MAINBOARD_HAS_CHROMEOS
- select CACHE_ROM
select MAINBOARD_HAS_NATIVE_VGA_INIT
select MONOTONIC_TIMER_MSR
diff --git a/src/northbridge/intel/fsp_sandybridge/Kconfig b/src/northbridge/intel/fsp_sandybridge/Kconfig
index 0c3d5f5156..ce366ef1ba 100644
--- a/src/northbridge/intel/fsp_sandybridge/Kconfig
+++ b/src/northbridge/intel/fsp_sandybridge/Kconfig
@@ -87,14 +87,10 @@ config CBFS_SIZE
config ENABLE_FAST_BOOT
bool "Enable Fast Boot"
default y if CPU_INTEL_FSP_MODEL_306AX && SOUTHBRIDGE_INTEL_FSP_BD82X6X
- depends on !CACHE_ROM
help
Enabling this feature will cause MRC data to be cached in NV storage
which will speed up boot time on future reboots and/or power cycles.
- WARNING: This feature combined with the CACHE_ROM may result in undefined
- behavior.
-
config MRC_CACHE_SIZE
hex "MRC Data Cache Size"
default 0x10000
diff --git a/src/northbridge/intel/nehalem/northbridge.c b/src/northbridge/intel/nehalem/northbridge.c
index f9386dedcc..d94bc09ba8 100644
--- a/src/northbridge/intel/nehalem/northbridge.c
+++ b/src/northbridge/intel/nehalem/northbridge.c
@@ -340,8 +340,6 @@ static const struct pci_driver mc_driver_44 __pci_driver = {
static void cpu_bus_init(device_t dev)
{
initialize_cpus(dev->link_list);
- /* Enable ROM caching if option was selected. */
- x86_mtrr_enable_rom_caching();
}
static void cpu_bus_noop(device_t dev)
diff --git a/src/northbridge/intel/sandybridge/northbridge.c b/src/northbridge/intel/sandybridge/northbridge.c
index 7db9301c30..5440140089 100644
--- a/src/northbridge/intel/sandybridge/northbridge.c
+++ b/src/northbridge/intel/sandybridge/northbridge.c
@@ -476,8 +476,6 @@ static const struct pci_driver mc_driver_1 __pci_driver = {
static void cpu_bus_init(device_t dev)
{
initialize_cpus(dev->link_list);
- /* Enable ROM caching if option was selected. */
- x86_mtrr_enable_rom_caching();
}
static void cpu_bus_noop(device_t dev)
diff --git a/src/soc/intel/baytrail/Kconfig b/src/soc/intel/baytrail/Kconfig
index d00acaafae..2360b36a73 100644
--- a/src/soc/intel/baytrail/Kconfig
+++ b/src/soc/intel/baytrail/Kconfig
@@ -9,7 +9,6 @@ if SOC_INTEL_BAYTRAIL
config CPU_SPECIFIC_OPTIONS
def_bool y
select CACHE_MRC_SETTINGS
- select CACHE_ROM
select CAR_MIGRATION
select COLLECT_TIMESTAMPS
select CPU_MICROCODE_IN_CBFS
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 13:03:17 +0000