From ded092a4380ad4f5dc067ceef7d6568867e03733 Mon Sep 17 00:00:00 2001 From: Lioncash Date: Wed, 19 Dec 2018 19:09:18 -0500 Subject: kernel/process_capability: Handle the priority mask and core mask flags Handles the priority mask and core mask flags to allow building up the masks to determine the usable thread priorities and cores for a kernel process instance. --- src/core/hle/kernel/process_capability.cpp | 31 +++++++++++++++++++++++++++++- 1 file changed, 30 insertions(+), 1 deletion(-) (limited to 'src/core/hle/kernel/process_capability.cpp') diff --git a/src/core/hle/kernel/process_capability.cpp b/src/core/hle/kernel/process_capability.cpp index 8d787547b6..9f513b25bd 100644 --- a/src/core/hle/kernel/process_capability.cpp +++ b/src/core/hle/kernel/process_capability.cpp @@ -205,7 +205,36 @@ void ProcessCapabilities::Clear() { } ResultCode ProcessCapabilities::HandlePriorityCoreNumFlags(u32 flags) { - // TODO: Implement + if (priority_mask != 0 || core_mask != 0) { + return ERR_INVALID_CAPABILITY_DESCRIPTOR; + } + + const u32 core_num_min = (flags >> 16) & 0xFF; + const u32 core_num_max = (flags >> 24) & 0xFF; + if (core_num_min > core_num_max) { + return ERR_INVALID_COMBINATION; + } + + const u32 priority_min = (flags >> 10) & 0x3F; + const u32 priority_max = (flags >> 4) & 0x3F; + if (priority_min > priority_max) { + return ERR_INVALID_COMBINATION; + } + + // The switch only has 4 usable cores. + if (core_num_max >= 4) { + return ERR_INVALID_PROCESSOR_ID; + } + + const auto make_mask = [](u64 min, u64 max) { + const u64 range = max - min + 1; + const u64 mask = (1ULL << range) - 1; + + return mask << min; + }; + + core_mask = make_mask(core_num_min, core_num_max); + priority_mask = make_mask(priority_min, priority_max); return RESULT_SUCCESS; } -- cgit v1.2.3