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kern: update for new hw maintenance semantics

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This commit is contained in:
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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18
libraries/libvapours/source/dd/impl/dd_cache_impl.os.horizon.hpp
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@@ -31,6 +31,15 @@ namespace ams::dd::impl {
__asm__ __volatile__("mrs %[ctr_el0], ctr_el0" : [ctr_el0]"=r"(ctr_el0));
const uintptr_t cache_line_size = 4 << ((ctr_el0 >> 16) & 0xF);
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
/* 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; }
#endif
/* Invalidate the cache. */
const uintptr_t start_addr = reinterpret_cast<uintptr_t>(addr) & ~(cache_line_size - 1);
const uintptr_t end_addr = reinterpret_cast<uintptr_t>(addr) + size;
@@ -62,6 +71,15 @@ namespace ams::dd::impl {
__asm__ __volatile__("mrs %[ctr_el0], ctr_el0" : [ctr_el0]"=r"(ctr_el0));
const uintptr_t cache_line_size = 4 << ((ctr_el0 >> 16) & 0xF);
#if defined(ATMOSPHERE_IS_STRATOSPHERE)
/* 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; }
#endif
/* Invalidate the cache. */
const uintptr_t start_addr = reinterpret_cast<uintptr_t>(addr) & ~(cache_line_size - 1);
const uintptr_t end_addr = reinterpret_cast<uintptr_t>(addr) + size;