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parameterize ctrl thread registers cache with entity store, rather than relying on implicit demon-api-provided cache

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This commit is contained in:
Ryan Fleury
2024-03-22 16:15:20 -07:00
parent c636e1ad2e
commit 2c8c9a497c
7 changed files with 46 additions and 54 deletions
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src/ctrl/ctrl_core.c
+13 -37
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@@ -800,7 +800,6 @@ ctrl_init(void)
Arena *arena = arena_alloc();
ctrl_state = push_array(arena, CTRL_State, 1);
ctrl_state->arena = arena;
ctrl_state->ctrl_run_mutex = os_mutex_alloc();
for(Architecture arch = (Architecture)0; arch < Architecture_COUNT; arch = (Architecture)(arch+1))
{
String8 *reg_names = regs_reg_code_string_table_from_architecture(arch);
@@ -1284,10 +1283,11 @@ ctrl_process_write(CTRL_MachineID machine_id, DMN_Handle process, Rng1U64 range,
//- rjf: thread register cache reading
internal void *
ctrl_query_cached_reg_block_from_thread(Arena *arena, CTRL_MachineID machine_id, DMN_Handle thread)
ctrl_query_cached_reg_block_from_thread(Arena *arena, CTRL_EntityStore *store, CTRL_MachineID machine_id, DMN_Handle thread)
{
CTRL_ThreadRegCache *cache = &ctrl_state->thread_reg_cache;
Architecture arch = dmn_arch_from_thread(thread);
CTRL_Entity *thread_entity = ctrl_entity_from_machine_id_handle(store, machine_id, thread);
Architecture arch = thread_entity->arch;
U64 reg_block_size = regs_block_size_from_architecture(arch);
U64 hash = ctrl_hash_from_machine_id_handle(machine_id, thread);
U64 slot_idx = hash%cache->slots_count;
@@ -1346,14 +1346,11 @@ ctrl_query_cached_reg_block_from_thread(Arena *arena, CTRL_MachineID machine_id,
{
U64 current_reg_gen = dmn_reg_gen();
B32 need_stale = 1;
if(node->reg_gen != current_reg_gen)
if(node->reg_gen != current_reg_gen && dmn_thread_read_reg_block(thread, result))
{
OS_MutexScope(ctrl_state->ctrl_run_mutex) if(ctrl_state->ctrl_run_state == 0 && dmn_thread_read_reg_block(thread, result))
{
need_stale = 0;
node->reg_gen = current_reg_gen;
MemoryCopy(node->block, result, reg_block_size);
}
need_stale = 0;
node->reg_gen = current_reg_gen;
MemoryCopy(node->block, result, reg_block_size);
}
if(need_stale)
{
@@ -1365,34 +1362,24 @@ ctrl_query_cached_reg_block_from_thread(Arena *arena, CTRL_MachineID machine_id,
}
internal U64
ctrl_query_cached_tls_root_vaddr_from_thread(CTRL_MachineID machine_id, DMN_Handle thread)
ctrl_query_cached_tls_root_vaddr_from_thread(CTRL_EntityStore *store, CTRL_MachineID machine_id, DMN_Handle thread)
{
U64 result = dmn_tls_root_vaddr_from_thread(thread);
return result;
}
internal U64
ctrl_query_cached_rip_from_thread(CTRL_MachineID machine_id, DMN_Handle thread)
ctrl_query_cached_rip_from_thread(CTRL_EntityStore *store, CTRL_MachineID machine_id, DMN_Handle thread)
{
Temp scratch = scratch_begin(0, 0);
Architecture arch = dmn_arch_from_thread(thread);
void *block = ctrl_query_cached_reg_block_from_thread(scratch.arena, machine_id, thread);
CTRL_Entity *thread_entity = ctrl_entity_from_machine_id_handle(store, machine_id, thread);
Architecture arch = thread_entity->arch;
void *block = ctrl_query_cached_reg_block_from_thread(scratch.arena, store, machine_id, thread);
U64 result = regs_rip_from_arch_block(arch, block);
scratch_end(scratch);
return result;
}
internal U64
ctrl_query_cached_rsp_from_thread(CTRL_MachineID machine_id, DMN_Handle thread)
{
Temp scratch = scratch_begin(0, 0);
Architecture arch = dmn_arch_from_thread(thread);
void *block = ctrl_query_cached_reg_block_from_thread(scratch.arena, machine_id, thread);
U64 result = regs_rsp_from_arch_block(arch, block);
scratch_end(scratch);
return result;
}
//- rjf: thread register writing
internal B32
@@ -1728,13 +1715,8 @@ ctrl_thread__entry_point(void *p)
//- rjf: get next messages
CTRL_MsgList msgs = ctrl_u2c_pop_msgs(scratch.arena);
//- rjf: begin run state
OS_MutexScope(ctrl_state->ctrl_run_mutex)
{
ctrl_state->ctrl_run_state = 1;
}
//- rjf: process messages
DMN_CtrlExclusiveAccessScope
{
B32 done = 0;
for(CTRL_MsgNode *msg_n = msgs.first; msg_n != 0 && done == 0; msg_n = msg_n->next)
@@ -1768,12 +1750,6 @@ ctrl_thread__entry_point(void *p)
}
}
}
//- rjf: end run state
OS_MutexScope(ctrl_state->ctrl_run_mutex)
{
ctrl_state->ctrl_run_state = 0;
}
}
scratch_end(scratch);