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rsx: Avoid false positives by early rejection. Should keep cache thashing to a minimum

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This commit is contained in:
kd-11 2017-10-28 11:45:43 +03:00
parent 055f0e2e4a
commit 7abf755a57
1 changed files with 38 additions and 12 deletions
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50
rpcs3/Emu/RSX/Common/texture_cache.h
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@ -210,6 +210,31 @@ namespace rsx
return utils::protection::rw;
}
inline bool region_intersects_cache(u32 address, u32 range, bool is_writing) const
{
std::pair<u32, u32> test_range = std::make_pair(address, address + range);
if (!is_writing)
{
if (no_access_range.first > no_access_range.second ||
test_range.second < no_access_range.first ||
test_range.first > no_access_range.second)
return false;
}
else
{
if (test_range.second < read_only_range.first ||
test_range.first > read_only_range.second)
{
//Doesnt fall in the read_only textures range; check render targets
if (test_range.second < no_access_range.first ||
test_range.first > no_access_range.second)
return false;
}
}
return true;
}
//Get intersecting set - Returns all objects intersecting a given range and their owning blocks
std::vector<std::pair<section_storage_type*, ranged_storage*>> get_intersecting_set(u32 address, u32 range, bool check_whole_size)
{
@ -273,18 +298,23 @@ namespace rsx
template <typename ...Args>
thrashed_set invalidate_range_impl_base(u32 address, u32 range, bool is_writing, bool discard_only, bool rebuild_cache, bool allow_flush, Args&&... extras)
{
if (!region_intersects_cache(address, range, is_writing))
return {};
auto trampled_set = get_intersecting_set(address, range, allow_flush);
if (trampled_set.size() > 0)
{
// Rebuild the cache by only destroying ranges that need to be destroyed to unlock this page
const auto to_reprotect = !rebuild_cache? trampled_set.end() :
std::remove_if(trampled_set.begin(), trampled_set.end(),
const auto to_reprotect = std::remove_if(trampled_set.begin(), trampled_set.end(),
[&](const std::pair<section_storage_type*, ranged_storage*>& obj)
{
if (!is_writing && obj.first->get_protection() != utils::protection::no)
return true;
if (!rebuild_cache)
return false;
if (!obj.first->is_flushable())
return false;
@ -292,6 +322,9 @@ namespace rsx
return !std::get<0>(obj.first->overlaps_page(null_check, address, true));
});
if (to_reprotect == trampled_set.begin())
return {};
std::vector<section_storage_type*> sections_to_flush;
for (auto It = trampled_set.begin(); It != to_reprotect; ++It)
{
@ -609,16 +642,9 @@ namespace rsx
template <typename ...Args>
thrashed_set invalidate_range(u32 address, u32 range, bool is_writing, bool discard, bool allow_flush, Args&&... extras)
{
std::pair<u32, u32> trampled_range = std::make_pair(address, address + range);
if (trampled_range.second < read_only_range.first ||
trampled_range.first > read_only_range.second)
{
//Doesnt fall in the read_only textures range; check render targets
if (trampled_range.second < no_access_range.first ||
trampled_range.first > no_access_range.second)
return {};
}
//Test before trying to acquire the lock
if (!region_intersects_cache(address, range, is_writing))
return {};
writer_lock lock(m_cache_mutex);
return invalidate_range_impl(address, range, is_writing, discard, allow_flush, std::forward<Args>(extras)...);