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[libcpu/riscv/c906] fix "next_asid" type error (#7031) 

MAX_ASID最大为0x10000，在next_asid==MAX_ASID时进入下一个generation。因此next_asid不能只有16位，否则将不能进入下一个generation。修改rt_uint16_t为rt_uint32_t。
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chenhy0106 2023-03-09 20:25:54 +08:00 committed by GitHub
parent 95fea2f159
commit f6847af0cd
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libcpu/risc-v/t-head/c906/mmu.c
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@ -42,7 +42,7 @@ volatile __attribute__((aligned(4 * 1024)))
rt_ubase_t MMUTable[__SIZE(VPN2_BIT)]; rt_ubase_t MMUTable[__SIZE(VPN2_BIT)];
static rt_uint8_t ASID_BITS = 0; static rt_uint8_t ASID_BITS = 0;
static rt_uint16_t next_asid; static rt_uint32_t next_asid;
static rt_uint64_t global_asid_generation; static rt_uint64_t global_asid_generation;
#define ASID_MASK ((1 << ASID_BITS) - 1) #define ASID_MASK ((1 << ASID_BITS) - 1)
#define ASID_FIRST_GENERATION (1 << ASID_BITS) #define ASID_FIRST_GENERATION (1 << ASID_BITS)