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Merge pull request #654 from Celegans12/feat/agc-write-data-cache-policy 

feat(agc): accept the WRITE_DATA cache policy
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Dean 2026-10-06 07:48:51 +13:00 committed by GitHub
parent 75aa7f2197 61d2fb0a53
commit 5e68f0ad09
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GPG Key ID: B5690EEEBB952194
2 changed files with 5 additions and 1 deletions
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3
core/libs/prx/libSceAgcDriver/Execution/src/Pm4.cpp
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@ -196,6 +196,7 @@ std::string_view UnsupportedReason(std::uint32_t header) {
constexpr std::uint32_t DmaSourceCachePolicy = 3u << 13u;
constexpr std::uint32_t DmaDestinationCachePolicy = 3u << 25u;
constexpr std::uint32_t WriteDataCachePolicy = 3u << 25u;
void Validate(std::span<const std::uint32_t> packet, std::uint32_t queue) {
require(!packet.empty(), "truncated PM4 header");
@ -380,7 +381,7 @@ void Validate(std::span<const std::uint32_t> packet, std::uint32_t queue) {
break;
case 0x37: {
require(packet.size() >= 5, "WRITE_DATA has no data");
require((packet[1] & ~0x40110f00u) == 0, "WRITE_DATA engine, cache or reserved fields are not implemented");
require((packet[1] & ~(0x40110f00u | WriteDataCachePolicy)) == 0, "WRITE_DATA engine or reserved fields are not implemented");
const auto destination = (packet[1] >> 8u) & 0xfu;
require(destination == 1 || destination == 2 || (queue != 0 && destination == 5), "WRITE_DATA register or GDS destination is not implemented");
require((packet[2] & 3u) == 0, "misaligned WRITE_DATA destination");

3
core/libs/prx/libSceAgcDriver/tests/Pm4.cpp
View File

@ -290,6 +290,9 @@ void testMemory() {
check(data[0] == 22 && data[1] == 12, "WRITE_DATA fixed destination failed");
execute(state, makePacket(0x37, {0x40000100, low(data.data()), high(data.data()), 41, 42}));
check(data[0] == 41 && data[1] == 42, "WRITE_DATA from the PFP failed");
execute(state, makePacket(0x37, {0x04100200, low(data.data()), high(data.data()), 61, 62}));
check(data[0] == 61 && data[1] == 62, "WRITE_DATA with a cache policy failed");
expectFailure([&] { AgcDriver::Pm4::Validate(makePacket(0x37, {0x08000100, low(data.data()), high(data.data()), 71}), 0); }, "reserved");
expectFailure([&] { AgcDriver::Pm4::Validate(makePacket(0x37, {0x80000100, low(data.data()), high(data.data()), 51}), 0); }, "engine");
execute(state, makePacket(0x81, {4, 31, 32}));
execute(state, makePacket(0x83, {4, 2, low(data.data()), high(data.data())}));