From cd7a70f4879ff6e0f3e334ddf1031ccf0c0d31cf Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ky=C3=B6sti=20M=C3=A4lkki?= Date: Sat, 17 Aug 2019 20:51:08 +0300 Subject: soc/intel: Use common romstage code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This provides stack guards with checking and common entry into postcar. The code in cpu/intel/car/romstage.c is candidate for becoming architectural so function prototype is moved to . Change-Id: I4c5a9789e7cf3f7f49a4a33e21dac894320a9639 Signed-off-by: Kyösti Mälkki Reviewed-on: https://review.coreboot.org/c/coreboot/+/34893 Reviewed-by: Aaron Durbin Tested-by: build bot (Jenkins) --- src/soc/intel/apollolake/romstage.c | 29 ++++++--------- src/soc/intel/baytrail/romstage/romstage.c | 19 +--------- src/soc/intel/broadwell/romstage/romstage.c | 1 - src/soc/intel/cannonlake/romstage/romstage.c | 20 ++++------- src/soc/intel/denverton_ns/romstage.c | 32 ++++++----------- src/soc/intel/icelake/romstage/romstage.c | 20 ++++------- src/soc/intel/quark/romstage/fsp2_0.c | 26 ++++++++------ src/soc/intel/skylake/romstage/romstage_fsp20.c | 47 ++++++++++--------------- 8 files changed, 67 insertions(+), 127 deletions(-) (limited to 'src/soc/intel') diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c index 1464d2c6b3..2c283396c9 100644 --- a/src/soc/intel/apollolake/romstage.c +++ b/src/soc/intel/apollolake/romstage.c @@ -16,7 +16,6 @@ * GNU General Public License for more details. */ -#include #include #include #include @@ -193,20 +192,15 @@ void set_max_freq(void) cpu_set_p_state_to_turbo_ratio(); } -asmlinkage void car_stage_entry(void) +void mainboard_romstage_entry(void) { - struct postcar_frame pcf; - uintptr_t top_of_ram; bool s3wake; + size_t var_size; struct chipset_power_state *ps = pmc_get_power_state(); - uintptr_t smm_base; - size_t smm_size, var_size; const void *new_var_data; timestamp_add_now(TS_START_ROMSTAGE); - console_init(); - soc_early_romstage_init(); s3wake = pmc_fill_power_state(ps) == ACPI_S3; @@ -227,10 +221,14 @@ asmlinkage void car_stage_entry(void) else printk(BIOS_ERR, "Failed to determine variable data\n"); - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); - mainboard_save_dimm_info(); +} + +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; + uintptr_t smm_base; + size_t smm_size; /* * We need to make sure ramstage will be run cached. At this point exact @@ -240,12 +238,9 @@ asmlinkage void car_stage_entry(void) top_of_ram = (uintptr_t) cbmem_top(); /* cbmem_top() needs to be at least 16 MiB aligned */ assert(ALIGN_DOWN(top_of_ram, 16*MiB) == top_of_ram); - postcar_frame_add_mtrr(&pcf, top_of_ram - 16*MiB, 16*MiB, + postcar_frame_add_mtrr(pcf, top_of_ram - 16*MiB, 16*MiB, MTRR_TYPE_WRBACK); - /* Cache the memory-mapped boot media. */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); - /* * Cache the TSEG region at the top of ram. This region is * not restricted to SMM mode until SMM has been relocated. @@ -254,9 +249,7 @@ asmlinkage void car_stage_entry(void) * region for other purposes. */ smm_region(&smm_base, &smm_size); - postcar_frame_add_mtrr(&pcf, smm_base, smm_size, MTRR_TYPE_WRBACK); - - run_postcar_phase(&pcf); + postcar_frame_add_mtrr(pcf, smm_base, smm_size, MTRR_TYPE_WRBACK); } static void fill_console_params(FSPM_UPD *mupd) diff --git a/src/soc/intel/baytrail/romstage/romstage.c b/src/soc/intel/baytrail/romstage/romstage.c index f20c363a35..aa9fa6b66a 100644 --- a/src/soc/intel/baytrail/romstage/romstage.c +++ b/src/soc/intel/baytrail/romstage/romstage.c @@ -54,23 +54,6 @@ static struct postcar_frame early_mtrrs; -static void fill_postcar_frame(struct postcar_frame *pcf); - -/* prepare_and_run_postcar() determines the stack to use after - * cache-as-ram is torn down as well as the MTRR settings to use. */ -static void prepare_and_run_postcar(struct postcar_frame *pcf) -{ - if (postcar_frame_init(pcf, 0)) - die("Unable to initialize postcar frame.\n"); - - fill_postcar_frame(pcf); - - postcar_frame_common_mtrrs(pcf); - - run_postcar_phase(pcf); - /* We do not return here. */ -} - static void program_base_addresses(void) { uint32_t reg; @@ -260,7 +243,7 @@ void romstage_common(struct romstage_params *params) romstage_handoff_init(prev_sleep_state == ACPI_S3); } -static void fill_postcar_frame(struct postcar_frame *pcf) +void fill_postcar_frame(struct postcar_frame *pcf) { uintptr_t top_of_ram; diff --git a/src/soc/intel/broadwell/romstage/romstage.c b/src/soc/intel/broadwell/romstage/romstage.c index 3f264ff5ec..b3662e1591 100644 --- a/src/soc/intel/broadwell/romstage/romstage.c +++ b/src/soc/intel/broadwell/romstage/romstage.c @@ -21,7 +21,6 @@ #include #include #include -#include #include #include #include diff --git a/src/soc/intel/cannonlake/romstage/romstage.c b/src/soc/intel/cannonlake/romstage/romstage.c index 9f02c8b1d3..5711c15142 100644 --- a/src/soc/intel/cannonlake/romstage/romstage.c +++ b/src/soc/intel/cannonlake/romstage/romstage.c @@ -13,7 +13,6 @@ * GNU General Public License for more details. */ -#include #include #include #include @@ -128,15 +127,11 @@ static void save_dimm_info(void) printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } -asmlinkage void car_stage_entry(void) +void mainboard_romstage_entry(void) { bool s3wake; - struct postcar_frame pcf; - uintptr_t top_of_ram; struct chipset_power_state *ps = pmc_get_power_state(); - console_init(); - /* Program MCHBAR, DMIBAR, GDXBAR and EDRAMBAR */ systemagent_early_init(); /* initialize Heci interface */ @@ -148,9 +143,11 @@ asmlinkage void car_stage_entry(void) pmc_set_disb(); if (!s3wake) save_dimm_info(); - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); +} +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; /* * We need to make sure ramstage will be run cached. At this * point exact location of ramstage in cbmem is not known. @@ -160,10 +157,5 @@ asmlinkage void car_stage_entry(void) top_of_ram = (uintptr_t) cbmem_top(); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); - - /* Cache the ROM as WP just below 4GiB. */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); - - run_postcar_phase(&pcf); + postcar_frame_add_mtrr(pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); } diff --git a/src/soc/intel/denverton_ns/romstage.c b/src/soc/intel/denverton_ns/romstage.c index 9c41486aa2..cbd451ae0d 100644 --- a/src/soc/intel/denverton_ns/romstage.c +++ b/src/soc/intel/denverton_ns/romstage.c @@ -14,7 +14,6 @@ * GNU General Public License for more details. */ -#include #include #include #include @@ -137,16 +136,8 @@ static void early_tco_init(void) outw(reg16, tco_base + TCO2_STS); } -asmlinkage void car_stage_entry(void) +void mainboard_romstage_entry(void) { - - struct postcar_frame pcf; - uintptr_t top_of_ram; - uintptr_t smm_base; - size_t smm_size; - - console_init(); - printk(BIOS_DEBUG, "FSP TempRamInit was successful...\n"); mainboard_config_gpios(); @@ -158,9 +149,13 @@ asmlinkage void car_stage_entry(void) #if CONFIG(DISPLAY_HOBS) display_fsp_smbios_memory_info_hob(); #endif +} - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; + uintptr_t smm_base; + size_t smm_size; /* * We need to make sure ramstage will be run cached. At this point exact @@ -168,12 +163,9 @@ asmlinkage void car_stage_entry(void) * 16 megs under cbmem top which is a safe bet to cover ramstage. */ top_of_ram = (uintptr_t)cbmem_top(); - postcar_frame_add_mtrr(&pcf, top_of_ram - 16 * MiB, 16 * MiB, + postcar_frame_add_mtrr(pcf, top_of_ram - 16 * MiB, 16 * MiB, MTRR_TYPE_WRBACK); - /* Cache the memory-mapped boot media. */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); - /* * Cache the TSEG region at the top of ram. This region is * not restricted to SMM mode until SMM has been relocated. @@ -181,12 +173,8 @@ asmlinkage void car_stage_entry(void) * when relocating the SMM handler as well as using the TSEG * region for other purposes. */ - if (CONFIG(HAVE_SMI_HANDLER)) { - smm_region(&smm_base, &smm_size); - postcar_frame_add_mtrr(&pcf, smm_base, smm_size, MTRR_TYPE_WRBACK); - } - - run_postcar_phase(&pcf); + smm_region(&smm_base, &smm_size); + postcar_frame_add_mtrr(pcf, smm_base, smm_size, MTRR_TYPE_WRBACK); } static void soc_memory_init_params(FSP_M_CONFIG *m_cfg) diff --git a/src/soc/intel/icelake/romstage/romstage.c b/src/soc/intel/icelake/romstage/romstage.c index 8312f178e4..67ef2bb6ce 100644 --- a/src/soc/intel/icelake/romstage/romstage.c +++ b/src/soc/intel/icelake/romstage/romstage.c @@ -13,7 +13,6 @@ * GNU General Public License for more details. */ -#include #include #include #include @@ -112,15 +111,11 @@ static void save_dimm_info(void) printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } -asmlinkage void car_stage_entry(void) +void mainboard_romstage_entry(void) { bool s3wake; - struct postcar_frame pcf; - uintptr_t top_of_ram; struct chipset_power_state *ps = pmc_get_power_state(); - console_init(); - /* Program MCHBAR, DMIBAR, GDXBAR and EDRAMBAR */ systemagent_early_init(); /* initialize Heci interface */ @@ -132,9 +127,11 @@ asmlinkage void car_stage_entry(void) pmc_set_disb(); if (!s3wake) save_dimm_info(); - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); +} +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; /* * We need to make sure ramstage will be run cached. At this * point exact location of ramstage in cbmem is not known. @@ -144,10 +141,5 @@ asmlinkage void car_stage_entry(void) top_of_ram = (uintptr_t) cbmem_top(); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); - - /* Cache the ROM as WP just below 4GiB. */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); - - run_postcar_phase(&pcf); + postcar_frame_add_mtrr(pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); } diff --git a/src/soc/intel/quark/romstage/fsp2_0.c b/src/soc/intel/quark/romstage/fsp2_0.c index 0489621045..bd30271d77 100644 --- a/src/soc/intel/quark/romstage/fsp2_0.c +++ b/src/soc/intel/quark/romstage/fsp2_0.c @@ -28,12 +28,11 @@ #include #include +static struct postcar_frame early_mtrrs; + asmlinkage void car_stage_c_entry(void) { - struct postcar_frame pcf; bool s3wake; - uintptr_t top_of_ram; - uintptr_t top_of_low_usable_memory; post_code(0x20); console_init(); @@ -63,28 +62,33 @@ asmlinkage void car_stage_c_entry(void) /* Initialize the PCIe bridges */ pcie_init(); - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); + prepare_and_run_postcar(&early_mtrrs); + /* We do not return here. */ +} + +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; + uintptr_t top_of_low_usable_memory; /* Locate the top of RAM */ top_of_low_usable_memory = (uintptr_t) cbmem_top(); top_of_ram = ALIGN(top_of_low_usable_memory, 16 * MiB); /* Cache postcar and ramstage */ - postcar_frame_add_mtrr(&pcf, top_of_ram - (16 * MiB), 16 * MiB, + postcar_frame_add_mtrr(pcf, top_of_ram - (16 * MiB), 16 * MiB, MTRR_TYPE_WRBACK); /* Cache RMU area */ - postcar_frame_add_mtrr(&pcf, (uintptr_t) top_of_low_usable_memory, + postcar_frame_add_mtrr(pcf, (uintptr_t) top_of_low_usable_memory, 0x10000, MTRR_TYPE_WRTHROUGH); /* Cache ESRAM */ - postcar_frame_add_mtrr(&pcf, 0x80000000, 0x80000, MTRR_TYPE_WRBACK); + postcar_frame_add_mtrr(pcf, 0x80000000, 0x80000, MTRR_TYPE_WRBACK); + pcf->skip_common_mtrr = 1; /* Cache SPI flash - Write protect not supported */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRTHROUGH); - - run_postcar_phase(&pcf); + postcar_frame_add_romcache(pcf, MTRR_TYPE_WRTHROUGH); } static struct chipset_power_state power_state; diff --git a/src/soc/intel/skylake/romstage/romstage_fsp20.c b/src/soc/intel/skylake/romstage/romstage_fsp20.c index 8b5cd18195..2412f22a27 100644 --- a/src/soc/intel/skylake/romstage/romstage_fsp20.c +++ b/src/soc/intel/skylake/romstage/romstage_fsp20.c @@ -13,7 +13,6 @@ * GNU General Public License for more details. */ -#include #include #include #include @@ -140,15 +139,11 @@ static void save_dimm_info(void) printk(BIOS_DEBUG, "%d DIMMs found\n", mem_info->dimm_cnt); } -asmlinkage void car_stage_entry(void) +void mainboard_romstage_entry(void) { bool s3wake; - struct postcar_frame pcf; - uintptr_t top_of_ram; struct chipset_power_state *ps; - console_init(); - /* Program MCHBAR, DMIBAR, GDXBAR and EDRAMBAR */ systemagent_early_init(); @@ -159,8 +154,13 @@ asmlinkage void car_stage_entry(void) pmc_set_disb(); if (!s3wake) save_dimm_info(); - if (postcar_frame_init(&pcf, 0)) - die("Unable to initialize postcar frame.\n"); +} + +void fill_postcar_frame(struct postcar_frame *pcf) +{ + uintptr_t top_of_ram; + uintptr_t smm_base; + size_t smm_size; /* * We need to make sure ramstage will be run cached. At this @@ -171,28 +171,17 @@ asmlinkage void car_stage_entry(void) top_of_ram = (uintptr_t) cbmem_top(); printk(BIOS_DEBUG, "top_of_ram = 0x%lx\n", top_of_ram); top_of_ram -= 16*MiB; - postcar_frame_add_mtrr(&pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); - - if (CONFIG(HAVE_SMI_HANDLER)) { - uintptr_t smm_base; - size_t smm_size; + postcar_frame_add_mtrr(pcf, top_of_ram, 16*MiB, MTRR_TYPE_WRBACK); - /* - * Cache the TSEG region at the top of ram. This region is - * not restricted to SMM mode until SMM has been relocated. - * By setting the region to cacheable it provides faster access - * when relocating the SMM handler as well as using the TSEG - * region for other purposes. - */ - smm_region(&smm_base, &smm_size); - postcar_frame_add_mtrr(&pcf, smm_base, smm_size, - MTRR_TYPE_WRBACK); - } - - /* Cache the ROM as WP just below 4GiB. */ - postcar_frame_add_romcache(&pcf, MTRR_TYPE_WRPROT); - - run_postcar_phase(&pcf); + /* + * Cache the TSEG region at the top of ram. This region is + * not restricted to SMM mode until SMM has been relocated. + * By setting the region to cacheable it provides faster access + * when relocating the SMM handler as well as using the TSEG + * region for other purposes. + */ + smm_region(&smm_base, &smm_size); + postcar_frame_add_mtrr(pcf, smm_base, smm_size, MTRR_TYPE_WRBACK); } static void cpu_flex_override(FSP_M_CONFIG *m_cfg) -- cgit v1.2.3