From: notaz Date: Wed, 17 Jul 2013 00:17:44 +0000 (+0300) Subject: drc: rework block tracking and lookup X-Git-Tag: v1.85~47 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=228ee974aa6ee7e0621dcea262d51ed23999000d;p=picodrive.git drc: rework block tracking and lookup - all 3 caches have their own hash tables (for now?) - block entry points have separate structures from blocks, so invalidation can now properly be done --- diff --git a/cpu/drc/emit_arm.c b/cpu/drc/emit_arm.c index 53c235f2..8b6c14d9 100644 --- a/cpu/drc/emit_arm.c +++ b/cpu/drc/emit_arm.c @@ -25,6 +25,7 @@ #define A_R9M (1 << 9) #define A_R10M (1 << 10) #define A_R11M (1 << 11) +#define A_R12M (1 << 12) #define A_R14M (1 << 14) #define A_R15M (1 << 15) @@ -707,11 +708,12 @@ static int emith_xbranch(int cond, void *target, int is_call) rd = arg /* SH2 drc specific */ +/* pushes r12 for eabi alignment */ #define emith_sh2_drc_entry() \ - EOP_STMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R14M) + EOP_STMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R12M|A_R14M) #define emith_sh2_drc_exit() \ - EOP_LDMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R15M) + EOP_LDMFD_SP(A_R4M|A_R5M|A_R6M|A_R7M|A_R8M|A_R9M|A_R10M|A_R11M|A_R12M|A_R15M) #define emith_sh2_wcall(a, tab, ret_ptr) { \ int val_ = (char *)(ret_ptr) - (char *)tcache_ptr - 2*4; \ diff --git a/cpu/sh2/compiler.c b/cpu/sh2/compiler.c index df2f0d39..7a042262 100644 --- a/cpu/sh2/compiler.c +++ b/cpu/sh2/compiler.c @@ -1,6 +1,6 @@ /* * SH2 recompiler - * (C) notaz, 2009,2010 + * (C) notaz, 2009,2010,2013 * * This work is licensed under the terms of MAME license. * See COPYING file in the top-level directory. @@ -10,8 +10,6 @@ * failure, followed by full tcache invalidation for that region * - jumps between blocks are tracked for SMC handling (in block_links[]), * except jumps between different tcaches - * - non-main block entries are called subblocks, as they have same tracking - * structures that main blocks have. * * implemented: * - static register allocation @@ -61,7 +59,7 @@ // 1 - warnings/errors // 2 - block info/smc // 4 - asm -// 8 - runtime entries +// 8 - runtime block entry log // { #ifndef DRC_DEBUG #define DRC_DEBUG 0 @@ -124,14 +122,25 @@ static u8 *tcache_ptrs[TCACHE_BUFFERS]; // ptr for code emiters static u8 *tcache_ptr; -struct block_desc { - u32 addr; // SH2 PC address - u32 end_addr; // address after last op +#define MAX_BLOCK_ENTRIES (BLOCK_INSN_LIMIT / 8) + +struct block_entry { + u32 pc; void *tcache_ptr; // translated block for above PC - struct block_desc *next; // next block with the same PC hash + struct block_entry *next; // next block in hash_table with same pc hash +#if (DRC_DEBUG & 2) + struct block_desc *block; +#endif +}; + +struct block_desc { + u32 addr; // block start SH2 PC address + u32 end_addr; // address after last op or literal #if (DRC_DEBUG & 2) int refcount; #endif + int entry_count; + struct block_entry entryp[MAX_BLOCK_ENTRIES]; }; struct block_link { @@ -146,8 +155,14 @@ static const int block_max_counts[TCACHE_BUFFERS] = { 256, }; static struct block_desc *block_tables[TCACHE_BUFFERS]; -static struct block_link *block_links[TCACHE_BUFFERS]; static int block_counts[TCACHE_BUFFERS]; + +static const int block_link_max_counts[TCACHE_BUFFERS] = { + 4*1024, + 256, + 256, +}; +static struct block_link *block_links[TCACHE_BUFFERS]; static int block_link_counts[TCACHE_BUFFERS]; // used for invalidation @@ -167,6 +182,16 @@ struct block_list { // each array has len: sizeof(mem) / ADDR_TO_BLOCK_PAGE static struct block_list **inval_lookup[TCACHE_BUFFERS]; +static const int hash_table_sizes[TCACHE_BUFFERS] = { + 0x1000, + 0x100, + 0x100, +}; +static struct block_entry **hash_tables[TCACHE_BUFFERS]; + +#define HASH_FUNC(hash_tab, addr, mask) \ + (hash_tab)[(((addr) >> 20) ^ ((addr) >> 2)) & (mask)] + // host register tracking enum { HR_FREE, @@ -246,14 +271,6 @@ static temp_reg_t reg_temp[] = { #define Q_SHIFT 8 #define M_SHIFT 9 -// ROM hash table -#define MAX_HASH_ENTRIES 1024 -#define HASH_MASK (MAX_HASH_ENTRIES - 1) -static struct block_desc **hash_table; - -#define HASH_FUNC(hash_tab, addr) \ - (hash_tab)[(addr) & HASH_MASK] - static void REGPARM(1) (*sh2_drc_entry)(SH2 *sh2); static void (*sh2_drc_dispatcher)(void); static void (*sh2_drc_exit)(void); @@ -297,32 +314,22 @@ static int dr_ctx_get_mem_ptr(u32 a, u32 *mask) return poffs; } -static struct block_desc *dr_get_bd(u32 pc, int is_slave, int *tcache_id) +static struct block_entry *dr_get_entry(u32 pc, int is_slave, int *tcache_id) { - *tcache_id = 0; + struct block_entry *be; + u32 tcid = 0, mask; - // we have full block id tables for data_array and RAM - // BIOS goes to data_array table too - if ((pc & 0xe0000000) == 0xc0000000 || (pc & ~0xfff) == 0) { - int blkid = Pico32xMem->drcblk_da[is_slave][(pc & 0xfff) >> SH2_DRCBLK_DA_SHIFT]; - *tcache_id = 1 + is_slave; - if (blkid & 1) - return &block_tables[*tcache_id][blkid >> 1]; - } - // RAM - else if ((pc & 0xc6000000) == 0x06000000) { - int blkid = Pico32xMem->drcblk_ram[(pc & 0x3ffff) >> SH2_DRCBLK_RAM_SHIFT]; - if (blkid & 1) - return &block_tables[0][blkid >> 1]; - } - // ROM - else if ((pc & 0xc6000000) == 0x02000000) { - struct block_desc *bd = HASH_FUNC(hash_table, pc); + // data arrays have their own caches + if ((pc & 0xe0000000) == 0xc0000000 || (pc & ~0xfff) == 0) + tcid = 1 + is_slave; - for (; bd != NULL; bd = bd->next) - if (bd->addr == pc) - return bd; - } + *tcache_id = tcid; + + mask = hash_table_sizes[tcid] - 1; + be = HASH_FUNC(hash_tables[tcid], pc, mask); + for (; be != NULL; be = be->next) + if (be->pc == pc) + return be; return NULL; } @@ -380,13 +387,16 @@ static void REGPARM(1) flush_tcache(int tcid) block_counts[tcid] = 0; block_link_counts[tcid] = 0; + memset(hash_tables[tcid], 0, sizeof(*hash_tables[0]) * hash_table_sizes[tcid]); tcache_ptrs[tcid] = tcache_bases[tcid]; - if (tcid == 0) { // ROM, RAM - memset(hash_table, 0, sizeof(hash_table[0]) * MAX_HASH_ENTRIES); - memset(Pico32xMem->drcblk_ram, 0, sizeof(Pico32xMem->drcblk_ram)); + if (Pico32xMem != NULL) { + if (tcid == 0) // ROM, RAM + memset(Pico32xMem->drcblk_ram, 0, + sizeof(Pico32xMem->drcblk_ram)); + else + memset(Pico32xMem->drcblk_da[tcid - 1], 0, + sizeof(Pico32xMem->drcblk_da[0])); } - else - memset(Pico32xMem->drcblk_da[tcid - 1], 0, sizeof(Pico32xMem->drcblk_da[0])); #if (DRC_DEBUG & 4) tcache_dsm_ptrs[tcid] = tcache_bases[tcid]; #endif @@ -402,7 +412,7 @@ static int dr_add_block_link(u32 target_pc, void *jump, int tcache_id) struct block_link *bl = block_links[tcache_id]; int cnt = block_link_counts[tcache_id]; - if (cnt >= block_max_counts[tcache_id] * 2) { + if (cnt >= block_link_max_counts[tcache_id]) { dbg(1, "bl overflow for tcache %d\n", tcache_id); return -1; } @@ -415,62 +425,96 @@ static int dr_add_block_link(u32 target_pc, void *jump, int tcache_id) } #endif +static void add_to_hashlist(struct block_entry *be, int tcache_id) +{ + u32 tcmask = hash_table_sizes[tcache_id] - 1; + + be->next = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); + HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be; + +#if (DRC_DEBUG & 2) + if (be->next != NULL) { + printf(" %08x: hash collision with %08x\n", + be->pc, be->next->pc); + hash_collisions++; + } +#endif +} + +static void rm_from_hashlist(struct block_entry *be, int tcache_id) +{ + u32 tcmask = hash_table_sizes[tcache_id] - 1; + struct block_entry *cur, *prev; + + cur = HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask); + if (cur == NULL) + goto missing; + + if (be == cur) { // first + HASH_FUNC(hash_tables[tcache_id], be->pc, tcmask) = be->next; + return; + } + + for (prev = cur, cur = cur->next; cur != NULL; cur = cur->next) { + if (cur == be) { + prev->next = cur->next; + return; + } + } + +missing: + dbg(1, "rm_from_hashlist: be %p %08x missing?", be, be->pc); +} + static struct block_desc *dr_add_block(u32 addr, u32 end_addr, int is_slave, int *blk_id) { + struct block_entry *be; struct block_desc *bd; int tcache_id; int *bcount; - bd = dr_get_bd(addr, is_slave, &tcache_id); - if (bd != NULL) { - dbg(2, "block override for %08x", addr); - bd->tcache_ptr = tcache_ptr; - bd->end_addr = end_addr; - *blk_id = bd - block_tables[tcache_id]; - return bd; - } + // do a lookup to get tcache_id and override check + be = dr_get_entry(addr, is_slave, &tcache_id); + if (be != NULL) + dbg(1, "block override for %08x", addr); bcount = &block_counts[tcache_id]; if (*bcount >= block_max_counts[tcache_id]) { dbg(1, "bd overflow for tcache %d", tcache_id); return NULL; } - if (*bcount == 0) - (*bcount)++; // not using descriptor 0 bd = &block_tables[tcache_id][*bcount]; bd->addr = addr; bd->end_addr = end_addr; - bd->tcache_ptr = tcache_ptr; - *blk_id = *bcount; - (*bcount)++; - if ((addr & 0xc6000000) == 0x02000000) { // ROM - bd->next = HASH_FUNC(hash_table, addr); - HASH_FUNC(hash_table, addr) = bd; + bd->entry_count = 1; + bd->entryp[0].pc = addr; + bd->entryp[0].tcache_ptr = tcache_ptr; #if (DRC_DEBUG & 2) - if (bd->next != NULL) { - printf(" hash collision with %08x\n", bd->next->addr); - hash_collisions++; - } + bd->entryp[0].block = bd; + bd->refcount = 0; #endif - } + add_to_hashlist(&bd->entryp[0], tcache_id); + + *blk_id = *bcount; + (*bcount)++; return bd; } static void REGPARM(3) *dr_lookup_block(u32 pc, int is_slave, int *tcache_id) { - struct block_desc *bd = NULL; + struct block_entry *be = NULL; void *block = NULL; - bd = dr_get_bd(pc, is_slave, tcache_id); - if (bd != NULL) - block = bd->tcache_ptr; + be = dr_get_entry(pc, is_slave, tcache_id); + if (be != NULL) + block = be->tcache_ptr; #if (DRC_DEBUG & 2) - if (bd != NULL) - bd->refcount++; + if (be != NULL) + be->block->refcount++; #endif return block; } @@ -506,7 +550,8 @@ static void *dr_prepare_ext_branch(u32 pc, SH2 *sh2, int tcache_id) static void dr_link_blocks(void *target, u32 pc, int tcache_id) { -#if LINK_BRANCHES +#if 0 // FIXME: invalidated blocks must not be in block_links +//LINK_BRANCHES struct block_link *bl = block_links[tcache_id]; int cnt = block_link_counts[tcache_id]; int i; @@ -1249,7 +1294,6 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) // XXX: maybe use structs instead? u32 branch_target_pc[MAX_LOCAL_BRANCHES]; void *branch_target_ptr[MAX_LOCAL_BRANCHES]; - int branch_target_blkid[MAX_LOCAL_BRANCHES]; int branch_target_count = 0; void *branch_patch_ptr[MAX_LOCAL_BRANCHES]; u32 branch_patch_pc[MAX_LOCAL_BRANCHES]; @@ -1267,15 +1311,15 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) // PC of current, first, last, last_target_blk SH2 insn u32 pc, base_pc, end_pc, out_pc; - void *block_entry; - struct block_desc *this_block; + void *block_entry_ptr; + struct block_desc *block; u16 *dr_pc_base; int blkid_main = 0; int skip_op = 0; u32 tmp, tmp2; int cycles; + int i, v; int op; - int i; base_pc = sh2->pc; @@ -1299,14 +1343,14 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) // 1st pass: scan forward for local branches scan_block(base_pc, sh2->is_slave, op_flags, &end_pc); - this_block = dr_add_block(base_pc, end_pc + MAX_LITERAL_OFFSET, // XXX + block = dr_add_block(base_pc, end_pc + MAX_LITERAL_OFFSET, // XXX sh2->is_slave, &blkid_main); - if (this_block == NULL) + if (block == NULL) return NULL; - block_entry = tcache_ptr; + block_entry_ptr = tcache_ptr; dbg(2, "== %csh2 block #%d,%d %08x-%08x -> %p", sh2->is_slave ? 's' : 'm', - tcache_id, blkid_main, base_pc, end_pc, block_entry); + tcache_id, blkid_main, base_pc, end_pc, block_entry_ptr); dr_link_blocks(tcache_ptr, base_pc, tcache_id); @@ -1323,7 +1367,6 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) if (branch_target_count > 0) { memset(branch_target_ptr, 0, sizeof(branch_target_ptr[0]) * branch_target_count); - memset(branch_target_blkid, 0, sizeof(branch_target_blkid[0]) * branch_target_count); } // ------------------------------------------------- @@ -1344,8 +1387,7 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) i = find_in_array(branch_target_pc, branch_target_count, pc); if (pc != base_pc) { - /* make "subblock" - just a mid-block entry */ - struct block_desc *subblock; + // make block entry sr = rcache_get_reg(SHR_SR, RC_GR_RMW); FLUSH_CYCLES(sr); @@ -1356,16 +1398,26 @@ static void REGPARM(2) *sh2_translate(SH2 *sh2, int tcache_id) rcache_flush(); do_host_disasm(tcache_id); - dbg(2, "-- %csh2 subblock #%d,%d %08x -> %p", sh2->is_slave ? 's' : 'm', - tcache_id, branch_target_blkid[i], pc, tcache_ptr); + v = block->entry_count; + if (v < ARRAY_SIZE(block->entryp)) { + block->entryp[v].pc = pc; + block->entryp[v].tcache_ptr = tcache_ptr; +#if (DRC_DEBUG & 2) + block->entryp[v].block = block; +#endif + add_to_hashlist(&block->entryp[v], tcache_id); + block->entry_count++; - subblock = dr_add_block(pc, end_pc + MAX_LITERAL_OFFSET, // XXX - sh2->is_slave, &branch_target_blkid[i]); - if (subblock == NULL) - return NULL; + dbg(2, "-- %csh2 block #%d,%d entry %08x -> %p", sh2->is_slave ? 's' : 'm', + tcache_id, blkid_main, pc, tcache_ptr); - // since we made a block entry, link any other blocks that jump to current pc - dr_link_blocks(tcache_ptr, pc, tcache_id); + // since we made a block entry, link any other blocks that jump to current pc + dr_link_blocks(tcache_ptr, pc, tcache_id); + } + else { + dbg(1, "too many entryp for block #%d,%d pc=%08x", + tcache_id, blkid_main, pc); + } } if (i >= 0) branch_target_ptr[i] = tcache_ptr; @@ -2640,9 +2692,9 @@ end_op: // mark memory blocks as containing compiled code // override any overlay blocks as they become unreachable anyway - if (tcache_id != 0 || (this_block->addr & 0xc7fc0000) == 0x06000000) + if (tcache_id != 0 || (block->addr & 0xc7fc0000) == 0x06000000) { - u16 *p, *drc_ram_blk = NULL; + u16 *drc_ram_blk = NULL; u32 addr, mask = 0, shift = 0; if (tcache_id != 0) { @@ -2651,45 +2703,35 @@ end_op: shift = SH2_DRCBLK_DA_SHIFT; mask = 0xfff; } - else if ((this_block->addr & 0xc7fc0000) == 0x06000000) { + else if ((block->addr & 0xc7fc0000) == 0x06000000) { // SDRAM drc_ram_blk = Pico32xMem->drcblk_ram; shift = SH2_DRCBLK_RAM_SHIFT; mask = 0x3ffff; } - drc_ram_blk[(base_pc & mask) >> shift] = (blkid_main << 1) | 1; - for (pc = base_pc + 2; pc < end_pc; pc += 2) { - p = &drc_ram_blk[(pc & mask) >> shift]; - *p = blkid_main << 1; - } - - // mark block entries (used by dr_get_bd()) - for (i = 0; i < branch_target_count; i++) - if (branch_target_blkid[i] != 0) - drc_ram_blk[(branch_target_pc[i] & mask) >> shift] = - (branch_target_blkid[i] << 1) | 1; + // mark recompiled insns + drc_ram_blk[(base_pc & mask) >> shift] = 1; + for (pc = base_pc; pc < end_pc; pc += 2) + drc_ram_blk[(pc & mask) >> shift] = 1; // mark literals for (i = 0; i < literal_addr_count; i++) { tmp = literal_addr[i]; - p = &drc_ram_blk[(tmp & mask) >> shift]; - *p = blkid_main << 1; - if (!(tmp & 3) && shift == 1) - p[1] = p[0]; // assume long + drc_ram_blk[(tmp & mask) >> shift] = 1; } // add to invalidation lookup lists addr = base_pc & ~(ADDR_TO_BLOCK_PAGE - 1); for (; addr < end_pc + MAX_LITERAL_OFFSET; addr += ADDR_TO_BLOCK_PAGE) { i = (addr & mask) / ADDR_TO_BLOCK_PAGE; - add_to_block_list(&inval_lookup[tcache_id][i], this_block); + add_to_block_list(&inval_lookup[tcache_id][i], block); } } tcache_ptrs[tcache_id] = tcache_ptr; - host_instructions_updated(block_entry, tcache_ptr); + host_instructions_updated(block_entry_ptr, tcache_ptr); do_host_disasm(tcache_id); dbg(2, " block #%d,%d tcache %d/%d, insns %d -> %d %.3f", @@ -2700,7 +2742,7 @@ end_op: dbg(2, " hash collisions %d/%d", hash_collisions, block_counts[tcache_id]); /* printf("~~~\n"); - tcache_dsm_ptrs[tcache_id] = block_entry; + tcache_dsm_ptrs[tcache_id] = block_entry_ptr; do_host_disasm(tcache_id); printf("~~~\n"); */ @@ -2709,7 +2751,7 @@ end_op: fflush(stdout); #endif - return block_entry; + return block_entry_ptr; } static void sh2_generate_utils(void) @@ -2926,10 +2968,9 @@ static void sh2_smc_rm_block_entry(struct block_desc *bd, int tcache_id, u32 ram void *tmp; u32 i, addr; - // XXX: kill links somehow? dbg(2, " killing entry %08x-%08x, blkid %d,%d", bd->addr, bd->end_addr, tcache_id, bd - block_tables[tcache_id]); - if (bd->addr == 0 || bd->tcache_ptr == NULL) { + if (bd->addr == 0 || bd->entry_count == 0) { dbg(1, " killing dead block!? %08x", bd->addr); return; } @@ -2941,21 +2982,27 @@ static void sh2_smc_rm_block_entry(struct block_desc *bd, int tcache_id, u32 ram rm_from_block_list(&inval_lookup[tcache_id][i], bd); } - // since we never reuse space of dead blocks, - // insert jump to dispatcher for blocks that are linked to this point - //emith_jump_at(bd->tcache_ptr, sh2_drc_dispatcher); - - // attempt to handle self-modifying blocks by exiting at nearest known PC tmp = tcache_ptr; - tcache_ptr = bd->tcache_ptr; - emit_move_r_imm32(SHR_PC, bd->addr); - rcache_flush(); - emith_jump(sh2_drc_dispatcher); - host_instructions_updated(bd->tcache_ptr, tcache_ptr); + // remove from hash table + // XXX: maybe kill links somehow instead? + for (i = 0; i < bd->entry_count; i++) { + rm_from_hashlist(&bd->entryp[i], tcache_id); + + // since we never reuse tcache space of dead blocks, + // insert jump to dispatcher for blocks that are linked to this + tcache_ptr = bd->entryp[i].tcache_ptr; + emit_move_r_imm32(SHR_PC, bd->addr); + rcache_flush(); + emith_jump(sh2_drc_dispatcher); + + host_instructions_updated(bd->entryp[i].tcache_ptr, tcache_ptr); + } + tcache_ptr = tmp; bd->addr = bd->end_addr = 0; + bd->entry_count = 0; } static void sh2_smc_rm_block(u32 a, u16 *drc_ram_blk, int tcache_id, u32 shift, u32 mask) @@ -3090,7 +3137,7 @@ int sh2_drc_init(SH2 *sh2) if (block_tables[i] == NULL) goto fail; // max 2 block links (exits) per block - block_links[i] = calloc(block_max_counts[i] * 2, sizeof(*block_links[0])); + block_links[i] = calloc(block_link_max_counts[i], sizeof(*block_links[0])); if (block_links[i] == NULL) goto fail; @@ -3098,6 +3145,10 @@ int sh2_drc_init(SH2 *sh2) sizeof(inval_lookup[0])); if (inval_lookup[i] == NULL) goto fail; + + hash_tables[i] = calloc(hash_table_sizes[i], sizeof(*hash_tables[0])); + if (hash_tables[i] == NULL) + goto fail; } memset(block_counts, 0, sizeof(block_counts)); memset(block_link_counts, 0, sizeof(block_link_counts)); @@ -3126,12 +3177,6 @@ int sh2_drc_init(SH2 *sh2) #endif } - if (hash_table == NULL) { - hash_table = calloc(sizeof(hash_table[0]), MAX_HASH_ENTRIES); - if (hash_table == NULL) - goto fail; - } - return 0; fail: @@ -3143,38 +3188,37 @@ void sh2_drc_finish(SH2 *sh2) { int i; - sh2_drc_flush_all(); + if (block_tables[0] == NULL) + return; - if (block_tables[0] != NULL) { - block_stats(); + sh2_drc_flush_all(); - for (i = 0; i < TCACHE_BUFFERS; i++) { + for (i = 0; i < TCACHE_BUFFERS; i++) { #if (DRC_DEBUG & 4) - printf("~~~ tcache %d\n", i); - tcache_dsm_ptrs[i] = tcache_bases[i]; - tcache_ptr = tcache_ptrs[i]; - do_host_disasm(i); + printf("~~~ tcache %d\n", i); + tcache_dsm_ptrs[i] = tcache_bases[i]; + tcache_ptr = tcache_ptrs[i]; + do_host_disasm(i); #endif - if (block_tables[i] != NULL) - free(block_tables[i]); - block_tables[i] = NULL; - if (block_links[i] == NULL) - free(block_links[i]); - block_links[i] = NULL; + if (block_tables[i] != NULL) + free(block_tables[i]); + block_tables[i] = NULL; + if (block_links[i] == NULL) + free(block_links[i]); + block_links[i] = NULL; - if (inval_lookup[i] == NULL) - free(inval_lookup[i]); - inval_lookup[i] = NULL; - } + if (inval_lookup[i] == NULL) + free(inval_lookup[i]); + inval_lookup[i] = NULL; - drc_cmn_cleanup(); + if (hash_tables[i] != NULL) { + free(hash_tables[i]); + hash_tables[i] = NULL; + } } - if (hash_table != NULL) { - free(hash_table); - hash_table = NULL; - } + drc_cmn_cleanup(); } #endif /* DRC_SH2 */