From 006eb9d8c8550ce0e8d01d37cceb88e7c1e12a5e Mon Sep 17 00:00:00 2001 From: Patrick Georgi Date: Wed, 2 Oct 2019 07:45:45 -0400 Subject: libpayload: refactor fetching cbmem pointers There's a recurring pattern of reading cbtable entries that point into cbmem entries. Move that pattern into its own function. Coccinelle patch used for this: @@ identifier T, T2; expression TARGET; @@ -struct cb_cbmem_tab *const T2 = (struct cb_cbmem_tab *)T; -TARGET = phys_to_virt(T2->cbmem_tab); +TARGET = get_cbmem_ptr(T); Change-Id: I7bd4a7ad8baeeaebf0fa7d4b4de6dbc719bc781f Signed-off-by: Patrick Georgi Reviewed-on: https://review.coreboot.org/c/coreboot/+/35756 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel Reviewed-by: Furquan Shaikh Reviewed-by: Stefan Reinauer --- payloads/libpayload/arch/x86/coreboot.c | 3 +-- payloads/libpayload/include/coreboot_tables.h | 2 ++ payloads/libpayload/libc/coreboot.c | 24 ++++++++++++------------ 3 files changed, 15 insertions(+), 14 deletions(-) (limited to 'payloads') diff --git a/payloads/libpayload/arch/x86/coreboot.c b/payloads/libpayload/arch/x86/coreboot.c index 3a9eb1a7be..07adee8917 100644 --- a/payloads/libpayload/arch/x86/coreboot.c +++ b/payloads/libpayload/arch/x86/coreboot.c @@ -50,8 +50,7 @@ static void cb_parse_x86_rom_var_mtrr(void *ptr, struct sysinfo_t *info) static void cb_parse_mrc_cache(void *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->mrc_cache = phys_to_virt(cbmem->cbmem_tab); + info->mrc_cache = get_cbmem_ptr(ptr); } int cb_parse_arch_specific(struct cb_record *rec, struct sysinfo_t *info) diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h index c24d6acfd6..188f4268c3 100644 --- a/payloads/libpayload/include/coreboot_tables.h +++ b/payloads/libpayload/include/coreboot_tables.h @@ -395,4 +395,6 @@ static inline const char *cb_mb_part_string(const struct cb_mainboard *cbm) (void *)(((u8 *) (_rec)) + sizeof(*(_rec)) \ + (sizeof((_rec)->map[0]) * (_idx))) +/* Helper functions */ +void *get_cbmem_ptr(unsigned char *ptr); #endif diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c index e14b144ee4..2ff2090c19 100644 --- a/payloads/libpayload/libc/coreboot.c +++ b/payloads/libpayload/libc/coreboot.c @@ -42,6 +42,12 @@ /* === Parsing code === */ /* This is the generic parsing code. */ +void *get_cbmem_ptr(unsigned char *ptr) +{ + struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; + return phys_to_virt(cbmem->cbmem_tab); +} + static void cb_parse_memory(void *ptr, struct sysinfo_t *info) { struct cb_memory *mem = ptr; @@ -128,20 +134,17 @@ static void cb_parse_mac_addresses(unsigned char *ptr, static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->tstamp_table = phys_to_virt(cbmem->cbmem_tab); + info->tstamp_table = get_cbmem_ptr(ptr); } static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab); + info->cbmem_cons = get_cbmem_ptr(ptr); } static void cb_parse_acpi_gnvs(unsigned char *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->acpi_gnvs = phys_to_virt(cbmem->cbmem_tab); + info->acpi_gnvs = get_cbmem_ptr(ptr); } static void cb_parse_board_id(unsigned char *ptr, struct sysinfo_t *info) @@ -193,8 +196,7 @@ static void cb_parse_string(unsigned char *ptr, char **info) static void cb_parse_wifi_calibration(void *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->wifi_calibration = phys_to_virt(cbmem->cbmem_tab); + info->wifi_calibration = get_cbmem_ptr(ptr); } static void cb_parse_ramoops(void *ptr, struct sysinfo_t *info) @@ -235,14 +237,12 @@ static void cb_parse_boot_media_params(unsigned char *ptr, static void cb_parse_vpd(void *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->chromeos_vpd = phys_to_virt(cbmem->cbmem_tab); + info->chromeos_vpd = get_cbmem_ptr(ptr); } static void cb_parse_fmap_cache(void *ptr, struct sysinfo_t *info) { - struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr; - info->fmap_cache = phys_to_virt(cbmem->cbmem_tab); + info->fmap_cache = get_cbmem_ptr(ptr); } #if CONFIG(LP_TIMER_RDTSC) -- cgit v1.2.3