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https://github.com/RaySollium99/picodrive.git
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drc: rework invalidation
This commit is contained in:
notaz
parent
d438a8dd8e
commit
569420b0d6
1 changed files with 97 additions and 63 deletions
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@ -125,6 +125,7 @@ static u8 *tcache_ptr;
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typedef struct block_desc_ {
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u32 addr; // SH2 PC address
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u32 end_addr; // address after last op
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void *tcache_ptr; // translated block for above PC
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struct block_desc_ *next; // next block with the same PC hash
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#if (DRC_DEBUG & 2)
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@ -148,6 +149,9 @@ static block_link *block_links[TCACHE_BUFFERS];
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static int block_counts[TCACHE_BUFFERS];
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static int block_link_counts[TCACHE_BUFFERS];
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#define BLOCKID_OVERLAP 0xfffe
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#define BLOCKID_MAX block_max_counts[0]
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// host register tracking
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enum {
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HR_FREE,
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@ -351,7 +355,7 @@ static int dr_add_block_link(u32 target_pc, void *jump, int tcache_id)
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}
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#endif
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static block_desc *dr_add_block(u32 addr, int is_slave, int *blk_id)
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static block_desc *dr_add_block(u32 addr, u32 end_addr, int is_slave, int *blk_id)
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{
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block_desc *bd;
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int tcache_id;
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@ -361,6 +365,7 @@ static block_desc *dr_add_block(u32 addr, int is_slave, int *blk_id)
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if (bd != NULL) {
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dbg(2, "block override for %08x", addr);
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bd->tcache_ptr = tcache_ptr;
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bd->end_addr = end_addr;
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*blk_id = bd - block_tables[tcache_id];
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return bd;
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}
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@ -375,6 +380,7 @@ static block_desc *dr_add_block(u32 addr, int is_slave, int *blk_id)
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bd = &block_tables[tcache_id][*bcount];
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bd->addr = addr;
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bd->end_addr = end_addr;
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bd->tcache_ptr = tcache_ptr;
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*blk_id = *bcount;
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(*bcount)++;
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@ -1222,9 +1228,6 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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}
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tcache_ptr = tcache_ptrs[tcache_id];
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this_block = dr_add_block(base_pc, sh2->is_slave, &blkid_main);
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if (this_block == NULL)
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return NULL;
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// predict tcache overflow
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tmp = tcache_ptr - tcache_bases[tcache_id];
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@ -1233,15 +1236,20 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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return NULL;
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}
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// 1st pass: scan forward for local branches
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scan_block(base_pc, sh2->is_slave, op_flags, &end_pc);
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this_block = dr_add_block(base_pc, end_pc + MAX_LITERAL_OFFSET, // XXX
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sh2->is_slave, &blkid_main);
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if (this_block == NULL)
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return NULL;
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block_entry = tcache_ptr;
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dbg(2, "== %csh2 block #%d,%d %08x -> %p", sh2->is_slave ? 's' : 'm',
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tcache_id, blkid_main, base_pc, block_entry);
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dr_link_blocks(tcache_ptr, base_pc, tcache_id);
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// 1st pass: scan forward for local branches
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scan_block(base_pc, sh2->is_slave, op_flags, &end_pc);
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// collect branch_targets that don't land on delay slots
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for (pc = base_pc; pc <= end_pc; pc += 2) {
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if (!(OP_FLAGS(pc) & OF_TARGET))
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@ -1291,7 +1299,8 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id)
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dbg(2, "-- %csh2 subblock #%d,%d %08x -> %p", sh2->is_slave ? 's' : 'm',
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tcache_id, branch_target_blkid[i], pc, tcache_ptr);
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subblock = dr_add_block(pc, sh2->is_slave, &branch_target_blkid[i]);
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subblock = dr_add_block(pc, end_pc + MAX_LITERAL_OFFSET, // XXX
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sh2->is_slave, &branch_target_blkid[i]);
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if (subblock == NULL)
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return NULL;
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@ -2572,27 +2581,32 @@ end_op:
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// override any overlay blocks as they become unreachable anyway
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if (tcache_id != 0 || (this_block->addr & 0xc7fc0000) == 0x06000000)
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{
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u16 *drc_ram_blk = NULL;
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u16 *p, *drc_ram_blk = NULL;
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u32 mask = 0, shift = 0;
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if (tcache_id != 0) {
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// data array, BIOS
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drc_ram_blk = Pico32xMem->drcblk_da[sh2->is_slave];
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shift = SH2_DRCBLK_DA_SHIFT;
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mask = 0xfff;
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mask = 0xfff/2;
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}
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else if ((this_block->addr & 0xc7fc0000) == 0x06000000) {
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// SDRAM
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drc_ram_blk = Pico32xMem->drcblk_ram;
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shift = SH2_DRCBLK_RAM_SHIFT;
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mask = 0x3ffff;
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mask = 0x3ffff/2;
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}
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drc_ram_blk[(base_pc >> shift) & mask] = (blkid_main << 1) | 1;
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for (pc = base_pc + 2; pc < end_pc; pc += 2)
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drc_ram_blk[(pc >> shift) & mask] = blkid_main << 1;
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for (pc = base_pc + 2; pc < end_pc; pc += 2) {
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p = &drc_ram_blk[(pc >> shift) & mask];
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if (*p && *p != (blkid_main << 1))
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*p = BLOCKID_OVERLAP; // block intersection..
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else
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*p = blkid_main << 1;
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}
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// mark subblocks
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// mark block entries (used by dr_get_bd())
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for (i = 0; i < branch_target_count; i++)
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if (branch_target_blkid[i] != 0)
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drc_ram_blk[(branch_target_pc[i] >> shift) & mask] =
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@ -2601,9 +2615,13 @@ end_op:
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// mark literals
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for (i = 0; i < literal_addr_count; i++) {
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tmp = literal_addr[i];
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drc_ram_blk[(tmp >> shift) & mask] = blkid_main << 1;
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if (!(tmp & 3)) // assume long
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drc_ram_blk[((tmp + 2) >> shift) & mask] = blkid_main << 1;
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p = &drc_ram_blk[(tmp >> shift) & mask];
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if (*p && *p != (blkid_main << 1))
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*p = BLOCKID_OVERLAP;
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else
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*p = blkid_main << 1;
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if (!(tmp & 3) && shift == 1)
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p[1] = p[0]; // assume long
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}
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}
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@ -2841,15 +2859,16 @@ static void sh2_generate_utils(void)
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#endif
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}
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static void *sh2_smc_rm_block_entry(block_desc *bd, int tcache_id)
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static void sh2_smc_rm_block_entry(block_desc *bd, int tcache_id)
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{
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void *tmp;
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// XXX: kill links somehow?
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dbg(2, " killing entry %08x, blkid %d", bd->addr, bd - block_tables[tcache_id]);
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dbg(2, " killing entry %08x-%08x, blkid %d,%d",
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bd->addr, bd->end_addr, tcache_id, bd - block_tables[tcache_id]);
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if (bd->addr == 0 || bd->tcache_ptr == NULL) {
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dbg(1, " killing dead block!? %08x", bd->addr);
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return bd->tcache_ptr;
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return;
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}
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// since we never reuse space of dead blocks,
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@ -2862,67 +2881,82 @@ static void *sh2_smc_rm_block_entry(block_desc *bd, int tcache_id)
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emit_move_r_imm32(SHR_PC, bd->addr);
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rcache_flush();
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emith_jump(sh2_drc_dispatcher);
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host_instructions_updated(bd->tcache_ptr, tcache_ptr);
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tcache_ptr = tmp;
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bd->addr = 0;
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return bd->tcache_ptr;
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bd->addr = bd->end_addr = 0;
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}
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static void sh2_smc_rm_block(u32 a, u16 *drc_ram_blk, int tcache_id, u32 shift, u32 mask)
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{
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//block_link *bl = block_links[tcache_id];
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//int bl_count = block_link_counts[tcache_id];
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block_desc *btab = block_tables[tcache_id];
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u16 *p = drc_ram_blk + ((a & mask) >> shift);
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u16 *pmax = drc_ram_blk + (mask >> shift);
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void *tcache_min, *tcache_max;
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int zeros;
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u16 *pt;
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u32 id = ~0, end_addr;
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int max_zeros = MAX_LITERAL_OFFSET >> shift;
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int i, zeros;
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// Figure out what the main block is, as subblocks also have the flag set.
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// This relies on sub having single entry. It's possible that innocent
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// block might be hit, but that's not such a big deal.
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if ((p[0] >> 1) != (p[1] >> 1)) {
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for (; p > drc_ram_blk; p--)
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if (p[-1] == 0 || (p[-1] >> 1) == (*p >> 1))
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break;
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}
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pt = p;
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for (; p > drc_ram_blk; p--)
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if ((*p & 1))
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break;
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if (!(*p & 1)) {
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dbg(1, "smc rm: missing block start for %08x?", a);
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p = pt;
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}
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if (*p == 0)
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if (*p == 0 || (*p >> 1) >= BLOCKID_MAX) {
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u32 from = ~0, to = 0;
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dbg(1, "slow-remove blocks at @%08x", a);
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for (i = 0; i < block_counts[tcache_id]; i++) {
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if (btab[i].addr <= a && a < btab[i].end_addr) {
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if (btab[i].addr < from)
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from = btab[i].addr;
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if (btab[i].end_addr > to)
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to = btab[i].end_addr;
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sh2_smc_rm_block_entry(&btab[i], tcache_id);
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}
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}
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if (from < to) {
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p = drc_ram_blk + ((from & mask) >> shift);
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memset(p, 0, (to - from) >> (shift - 1));
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}
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return;
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}
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tcache_min = tcache_max = sh2_smc_rm_block_entry(&btab[*p >> 1], tcache_id);
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*p = 0;
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// use end_addr to distinguish the same block
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end_addr = btab[*p >> 1].end_addr;
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for (p++, zeros = 0; p < pmax && zeros < MAX_LITERAL_OFFSET / 2; p++) {
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int id = *p >> 1;
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if (id == 0) {
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// there can be holes because games sometimes keep variables
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// directly in literal pool and we don't inline them to avoid recompile
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// (Star Wars Arcade)
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// go up to the start
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for (zeros = 0; p > drc_ram_blk && zeros < max_zeros; p--) {
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// there can be holes because games sometimes keep variables
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// directly in literal pool and we don't inline them
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// to avoid recompile (Star Wars Arcade)
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if (p[-1] == 0) {
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zeros++;
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continue;
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}
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if (*p & 1) {
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if (id == (p[1] >> 1))
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// hit other block
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break;
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tcache_max = sh2_smc_rm_block_entry(&btab[id], tcache_id);
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}
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*p = 0;
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zeros = 0;
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if ((p[-1] >> 1) >= BLOCKID_MAX)
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break;
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if (btab[p[-1] >> 1].end_addr != end_addr)
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break;
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}
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host_instructions_updated(tcache_min, (void *)((char *)tcache_max + 4*4 + 4));
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if (!(*p & 1))
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dbg(1, "smc rm: missing block start for %08x?", a);
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// now go down and kill everything
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for (zeros = 0; p < pmax && zeros < max_zeros; p++) {
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if (*p == 0) {
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zeros++;
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continue;
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}
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zeros = 0;
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if ((*p >> 1) >= BLOCKID_MAX)
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break;
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if ((*p >> 1) == id) {
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*p = 0;
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continue;
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}
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id = *p >> 1;
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if (btab[id].end_addr != end_addr)
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break;
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*p = 0;
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sh2_smc_rm_block_entry(&btab[id], tcache_id);
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}
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}
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void sh2_drc_wcheck_ram(unsigned int a, int val, int cpuid)
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