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TPRO.h
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TPRO.h
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// by khanhduytran0
#define _COMM_PAGE_START_ADDRESS (0x0000000FFFFFC000ULL)
//#define _COMM_PAGE_TPRO_SUPPORT (_COMM_PAGE_START_ADDRESS + ????)
#define _COMM_PAGE_TPRO_WRITE_ENABLE (_COMM_PAGE_START_ADDRESS + 0x0D0)
//#define _COMM_PAGE_TPRO_WRITE_DISABLE (_COMM_PAGE_START_ADDRESS + 0x0D8)
static inline bool os_thread_self_restrict_tpro_to_rw() {
if (!*(uint64_t*)_COMM_PAGE_TPRO_WRITE_ENABLE) {
// Doesn't have TPRO, skip this
return false;
}
__asm__ __volatile__ (
"mov x0, %0\n"
"ldr x0, [x0]\n"
"msr s3_6_c15_c1_5, x0\n"
"isb sy\n"
:: "r" (_COMM_PAGE_TPRO_WRITE_ENABLE)
: "memory", "x0"
);
return true;
}
/*
inline uint64_t sprr_read() {
uint64_t v;
__asm__ __volatile__(
"isb sy\n"
"mrs %0, s3_6_c15_c1_5\n"
: "=r"(v)::"memory");
return v;
}
*/