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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_POWERPC_TASK_SIZE_32_H #define _ASM_POWERPC_TASK_SIZE_32_H #include <linux/sizes.h> #if CONFIG_TASK_SIZE > CONFIG_KERNEL_START #error User TASK_SIZE overlaps with KERNEL_START address #endif #ifdef CONFIG_PPC_8xx #define MODULES_END ASM_CONST(CONFIG_PAGE_OFFSET) #define MODULES_SIZE (CONFIG_MODULES_SIZE * SZ_1M) #define MODULES_VADDR (MODULES_END - MODULES_SIZE) #define MODULES_BASE (MODULES_VADDR & ~(UL(SZ_4M) - 1)) #define USER_TOP (MODULES_BASE - SZ_4M) #endif #ifdef CONFIG_PPC_BOOK3S_32 #define MODULES_END (ASM_CONST(CONFIG_PAGE_OFFSET) & ~(UL(SZ_256M) - 1)) #define MODULES_SIZE (CONFIG_MODULES_SIZE * SZ_1M) #define MODULES_VADDR (MODULES_END - MODULES_SIZE) #define MODULES_BASE (MODULES_VADDR & ~(UL(SZ_256M) - 1)) #define USER_TOP (MODULES_BASE - SZ_4M) #endif #ifndef USER_TOP #define USER_TOP ((ASM_CONST(CONFIG_PAGE_OFFSET) - SZ_128K) & ~(UL(SZ_128K) - 1)) #endif #if CONFIG_TASK_SIZE < USER_TOP #define TASK_SIZE ASM_CONST(CONFIG_TASK_SIZE) #else #define TASK_SIZE USER_TOP #endif /* * This decides where the kernel will search for a free chunk of vm space during * mmap's. */ #define TASK_UNMAPPED_BASE (TASK_SIZE / 8 * 3) #define DEFAULT_MAP_WINDOW TASK_SIZE #define STACK_TOP TASK_SIZE #define STACK_TOP_MAX STACK_TOP #endif /* _ASM_POWERPC_TASK_SIZE_32_H */
