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SPU Debug: WrDec and LSA view

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Report the last written value to WrDec.
This commit is contained in:
elad335 2025-03-28 15:11:22 +03:00
parent 75e00d2098
commit e77aa65c4d
1 changed files with 22 additions and 1 deletions
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23
rpcs3/Emu/Cell/SPUThread.cpp
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@ -1204,18 +1204,30 @@ void spu_thread::dump_regs(std::string& ret, std::any& /*custom_data*/) const
std::vector<v128> gpr_saved(128);
be_t<u32> rdata_saved[32]{};
be_t<u32> lsa_saved[32]{};
spu_mfc_cmd mfc_regs_saved{};
u32 saved_pc = umax;
const u8* lsa_state_ptr = nullptr;
const u8* lsa_ptr = _ptr<u8>(ch_mfc_cmd.lsa);
// Load PC, GPRs and reservation data atomically
// We may not load the entire context atomically, but there is importance their state being intact for debugging
do
{
saved_pc = pc;
// Account for list transfer: record EAL instead
mfc_regs_saved = ch_mfc_cmd;
lsa_state_ptr = _ptr<const u8>(mfc_regs_saved.eal < SPU_LS_SIZE && mfc_regs_saved.eal % 8 == 0 ? mfc_regs_saved.eal : mfc_regs_saved.lsa);
std::memcpy(gpr_saved.data(), gpr.data(), sizeof(v128) * gpr.size());
std::memcpy(rdata_saved, rdata, sizeof(rdata));
std::memcpy(lsa_saved, lsa_state_ptr, std::min<usz>(128, SPU_LS_SIZE - (lsa_state_ptr - _ptr<u8>(0))));
atomic_fence_acquire();
}
while (saved_pc != pc || std::memcmp(rdata_saved, rdata, sizeof(rdata)) != 0 || std::memcmp(gpr_saved.data(), gpr.data(), sizeof(v128) * gpr.size()) != 0);
while (saved_pc != pc || std::memcmp(rdata_saved, rdata, sizeof(rdata)) != 0 || std::memcmp(gpr_saved.data(), gpr.data(), sizeof(v128) * gpr.size()) != 0
|| std::memcmp(&mfc_regs_saved, &ch_mfc_cmd, sizeof(mfc_regs_saved)) != 0 || std::memcmp(lsa_saved, lsa_state_ptr, std::min<usz>(128, SPU_LS_SIZE - (lsa_state_ptr - _ptr<u8>(0)))) != 0);
for (u32 i = 0; i < 128; i++, ret += '\n')
{
@ -1350,6 +1362,7 @@ void spu_thread::dump_regs(std::string& ret, std::any& /*custom_data*/) const
fmt::append(ret, "SNR config: 0x%llx\n", snr_config);
fmt::append(ret, "SNR1: %s\n", ch_snr1);
fmt::append(ret, "SNR2: %s\n", ch_snr2);
fmt::append(ret, "Last WrDec: %-9d (0x%08x) (%s)\n", ch_dec_value, ch_dec_value, is_dec_frozen ? "suspend" : "running");
if (get_type() != spu_type::threaded)
{
@ -1388,6 +1401,14 @@ void spu_thread::dump_regs(std::string& ret, std::any& /*custom_data*/) const
fmt::append(ret, "[0x%02x] %08x %08x %08x %08x\n", i * sizeof(rdata_saved[0])
, rdata_saved[i + 0], rdata_saved[i + 1], rdata_saved[i + 2], rdata_saved[i + 3]);
}
fmt::append(ret, "\nLSA Data:\n");
for (usz i = 0; i < std::size(lsa_saved); i += 4)
{
fmt::append(ret, "[0x%02x] %08x %08x %08x %08x\n", i * sizeof(lsa_saved[0])
, lsa_saved[i + 0], lsa_saved[i + 1], lsa_saved[i + 2], lsa_saved[i + 3]);
}
}
std::string spu_thread::dump_callstack() const