diff options
| -rw-r--r-- | src/arch/arm/include/arch/early_variables.h | 4 | ||||
| -rw-r--r-- | src/arch/arm64/include/arch/early_variables.h | 4 | ||||
| -rw-r--r-- | src/arch/mips/include/arch/early_variables.h | 4 | ||||
| -rw-r--r-- | src/arch/ppc64/include/arch/early_variables.h | 5 | ||||
| -rw-r--r-- | src/arch/riscv/include/arch/early_variables.h | 4 | ||||
| -rw-r--r-- | src/arch/x86/include/arch/early_variables.h | 19 | ||||
| -rw-r--r-- | src/cpu/x86/car.c | 49 | ||||
| -rw-r--r-- | src/lib/cbmem_console.c | 4 |
8 files changed, 52 insertions, 41 deletions
diff --git a/src/arch/arm/include/arch/early_variables.h b/src/arch/arm/include/arch/early_variables.h index 9f069232a6..7002a8805e 100644 --- a/src/arch/arm/include/arch/early_variables.h +++ b/src/arch/arm/include/arch/early_variables.h @@ -18,7 +18,9 @@ static inline void *car_get_var_ptr(void *var) { return var; } #define car_get_var(var) (var) -#define car_sync_var(var) (var) #define car_set_var(var, val) do { (var) = (val); } while (0) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var + #endif diff --git a/src/arch/arm64/include/arch/early_variables.h b/src/arch/arm64/include/arch/early_variables.h index 9f069232a6..7002a8805e 100644 --- a/src/arch/arm64/include/arch/early_variables.h +++ b/src/arch/arm64/include/arch/early_variables.h @@ -18,7 +18,9 @@ static inline void *car_get_var_ptr(void *var) { return var; } #define car_get_var(var) (var) -#define car_sync_var(var) (var) #define car_set_var(var, val) do { (var) = (val); } while (0) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var + #endif diff --git a/src/arch/mips/include/arch/early_variables.h b/src/arch/mips/include/arch/early_variables.h index 8fc9c19050..6ad82606c4 100644 --- a/src/arch/mips/include/arch/early_variables.h +++ b/src/arch/mips/include/arch/early_variables.h @@ -19,7 +19,9 @@ static inline void *car_get_var_ptr(void *var) { return var; } #define car_get_var(var) (var) -#define car_sync_var(var) (var) #define car_set_var(var, val) { (var) = (val); } +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var + #endif /* __MIPS_ARCH_EARLY_VARIABLES_H */ diff --git a/src/arch/ppc64/include/arch/early_variables.h b/src/arch/ppc64/include/arch/early_variables.h index 22c375051e..05b8bc7e48 100644 --- a/src/arch/ppc64/include/arch/early_variables.h +++ b/src/arch/ppc64/include/arch/early_variables.h @@ -19,8 +19,9 @@ #define CAR_MIGRATE(migrate_fn_) static inline void *car_get_var_ptr(void *var) { return var; } #define car_get_var(var) (var) -#define car_sync_var(var) (var) - #define car_set_var(var, val) do { (var) = (val); } while (0) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var + #endif diff --git a/src/arch/riscv/include/arch/early_variables.h b/src/arch/riscv/include/arch/early_variables.h index acc5ac3c6b..a2da5f86ee 100644 --- a/src/arch/riscv/include/arch/early_variables.h +++ b/src/arch/riscv/include/arch/early_variables.h @@ -21,7 +21,9 @@ #define CAR_MIGRATE(migrate_fn_) static inline void *car_get_var_ptr(void *var) { return var; } #define car_get_var(var) (var) -#define car_sync_var(var) (var) #define car_set_var(var, val) do { (var) = (val); } while (0) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var + #endif diff --git a/src/arch/x86/include/arch/early_variables.h b/src/arch/x86/include/arch/early_variables.h index 3910a820da..8111e7e10b 100644 --- a/src/arch/x86/include/arch/early_variables.h +++ b/src/arch/x86/include/arch/early_variables.h @@ -33,19 +33,25 @@ asm(".previous"); /* Get the correct pointer for the CAR global variable. */ void *car_get_var_ptr(void *var); -/* Get and update a CAR_GLOBAL pointing elsewhere in car.global_data*/ -void *car_sync_var_ptr(void *var); - /* Return 1 when currently running with globals in Cache-as-RAM, 0 otherwise. */ int car_active(void); /* Get and set a primitive type global variable. */ #define car_get_var(var) \ (*(typeof(var) *)car_get_var_ptr(&(var))) -#define car_sync_var(var) \ - (*(typeof(var) *)car_sync_var_ptr(&(var))) #define car_set_var(var, val) car_get_var(var) = (val) +/* Get and set a CAR_GLOBAL pointing elsewhere inside CAR. */ +#if !CONFIG(PLATFORM_USES_FSP1_0) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var +#else +void *car_get_reloc_ptr(void *var); +void car_set_reloc_ptr(void *var, void *val); +#define car_get_ptr(var) car_get_reloc_ptr(&(var)) +#define car_set_ptr(var, val) car_set_reloc_ptr(&(var), (val)) +#endif + static inline size_t car_data_size(void) { size_t car_size = _car_relocatable_data_size; @@ -66,8 +72,9 @@ static inline size_t car_object_offset(void *ptr) #define CAR_GLOBAL #define car_get_var(var) (var) -#define car_sync_var(var) (var) #define car_set_var(var, val) (var) = (val) +#define car_get_ptr car_get_var +#define car_set_ptr car_set_var static inline void *car_get_var_ptr(void *var) { diff --git a/src/cpu/x86/car.c b/src/cpu/x86/car.c index 6fc61686df..009ac192cc 100644 --- a/src/cpu/x86/car.c +++ b/src/cpu/x86/car.c @@ -77,41 +77,36 @@ void *car_get_var_ptr(void *var) return &migrated_base[offset]; } +#if CONFIG(PLATFORM_USES_FSP1_0) /* - * Update a CAR_GLOBAL variable var, originally pointing to CAR region, - * with the address in migrated CAR region in DRAM. + * When a CAR_GLOBAL points to target object inside CAR, use relative + * addressing. Such CAR_GLOBAL has to be expicitly accessed using + * car_set_reloc_ptr() and car_get_reloc_ptr() as the stored value is now + * an offset instead of the absolute address (pointer) of the target. + * + * This way discovery of objects that are not CAR_GLOBALs themselves, + * remain discoverable after CAR migration has implicitly happened. */ -void *car_sync_var_ptr(void *var) +void car_set_reloc_ptr(void *var, void *val) { - void **mig_var = car_get_var_ptr(var); - void *_car_start = _car_relocatable_data_start; - void *_car_end = _car_relocatable_data_end; + uintptr_t *offset = car_get_var_ptr(var); + *offset = 0; - /* Not moved or migrated yet. */ - if (mig_var == var) - return mig_var; - - /* - * Migrate the cbmem console pointer for FSP 1.0 platforms. Otherwise, - * keep console buffer in CAR until cbmemc_reinit() moves it. - */ - if (*mig_var == _preram_cbmem_console) { - if (CONFIG(PLATFORM_USES_FSP1_0)) - *mig_var += (char *)mig_var - (char *)var; - return mig_var; - } + if (val) + *offset = (uintptr_t)offset - (uintptr_t)val; +} - /* It's already pointing outside car.global_data. */ - if (*mig_var < _car_start || *mig_var > _car_end) - return mig_var; +void *car_get_reloc_ptr(void *var) +{ + uintptr_t *offset = car_get_var_ptr(var); + void *val = NULL; - /* Move the pointer by the same amount the variable storing it was - * moved by. - */ - *mig_var += (char *)mig_var - (char *)var; + if (*offset) + val = (void *)((uintptr_t)offset - *offset); - return mig_var; + return val; } +#endif int car_active(void) { diff --git a/src/lib/cbmem_console.c b/src/lib/cbmem_console.c index df2d1ffa96..18c3b71b4f 100644 --- a/src/lib/cbmem_console.c +++ b/src/lib/cbmem_console.c @@ -73,12 +73,12 @@ static u8 static_console[STATIC_CONSOLE_SIZE]; static struct cbmem_console *current_console(void) { - return car_sync_var(cbmem_console_p); + return car_get_ptr(cbmem_console_p); } static void current_console_set(struct cbmem_console *new_console_p) { - car_set_var(cbmem_console_p, new_console_p); + car_set_ptr(cbmem_console_p, new_console_p); } static int buffer_valid(struct cbmem_console *cbm_cons_p, u32 total_space) |