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kern: update for new hw maintenance semantics

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Michael Scire 2022-03-22 21:33:43 -07:00 • committed by SciresM
parent 6e17317d5d
commit 9d89835ff8
19 changed files with 386 additions and 244 deletions
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7
libraries/libstratosphere/source/os/impl/os_cache_impl.os.horizon.hpp
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@ -32,6 +32,13 @@ namespace ams::os::impl {
/* Calculate cache line size. */
cache_line_size = 4 << ((cache_type_register >> 16) & 0xF);
/* Get the thread local region. */
auto * const tlr = svc::GetThreadLocalRegion();
/* Note to the kernel that we're performing cache maintenance, in case we get interrupted while touching cache lines. */
tlr->cache_maintenance_flag = 1;
ON_SCOPE_EXIT { tlr->cache_maintenance_flag = 0; }
/* Iterate, flushing cache lines. */
for (uintptr_t cur = reinterpret_cast<uintptr_t>(addr) & ~(cache_line_size - 1); cur < end_addr; cur += cache_line_size) {
__asm__ __volatile__ ("dc civac, %[cur]" :: [cur]"r"(cur));