/* NFS filesystem cache interface * * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public Licence * as published by the Free Software Foundation; either version * 2 of the Licence, or (at your option) any later version. */ #include #include #include #include #include #include #include #include #include #include "internal.h" #include "iostat.h" #include "fscache.h" #define NFSDBG_FACILITY NFSDBG_FSCACHE static struct rb_root nfs_fscache_keys = RB_ROOT; static DEFINE_SPINLOCK(nfs_fscache_keys_lock); /* * Get the per-client index cookie for an NFS client if the appropriate mount * flag was set * - We always try and get an index cookie for the client, but get filehandle * cookies on a per-superblock basis, depending on the mount flags */ void nfs_fscache_get_client_cookie(struct nfs_client *clp) { /* create a cache index for looking up filehandles */ clp->fscache = fscache_acquire_cookie(nfs_fscache_netfs.primary_index, &nfs_fscache_server_index_def, clp); dfprintk(FSCACHE, "NFS: get client cookie (0x%p/0x%p)\n", clp, clp->fscache); } /* * Dispose of a per-client cookie */ void nfs_fscache_release_client_cookie(struct nfs_client *clp) { dfprintk(FSCACHE, "NFS: releasing client cookie (0x%p/0x%p)\n", clp, clp->fscache); fscache_relinquish_cookie(clp->fscache, 0); clp->fscache = NULL; } /* * Get the cache cookie for an NFS superblock. We have to handle * uniquification here because the cache doesn't do it for us. * * The default uniquifier is just an empty string, but it may be overridden * either by the 'fsc=xxx' option to mount, or by inheriting it from the parent * superblock across an automount point of some nature. */ void nfs_fscache_get_super_cookie(struct super_block *sb, const char *uniq, struct nfs_clone_mount *mntdata) { struct nfs_fscache_key *key, *xkey; struct nfs_server *nfss = NFS_SB(sb); struct rb_node **p, *parent; int diff, ulen; if (uniq) { ulen = strlen(uniq); } else if (mntdata) { struct nfs_server *mnt_s = NFS_SB(mntdata->sb); if (mnt_s->fscache_key) { uniq = mnt_s->fscache_key->key.uniquifier; ulen = mnt_s->fscache_key->key.uniq_len; } } if (!uniq) { uniq = ""; ulen = 1; } key = kzalloc(sizeof(*key) + ulen, GFP_KERNEL); if (!key) return; key->nfs_client = nfss->nfs_client; key->key.super.s_flags = sb->s_flags & NFS_MS_MASK; key->key.nfs_server.flags = nfss->flags; key->key.nfs_server.rsize = nfss->rsize; key->key.nfs_server.wsize = nfss->wsize; key->key.nfs_server.acregmin = nfss->acregmin; key->key.nfs_server.acregmax = nfss->acregmax; key->key.nfs_server.acdirmin = nfss->acdirmin; key->key.nfs_server.acdirmax = nfss->acdirmax; key->key.nfs_server.fsid = nfss->fsid; key->key.rpc_auth.au_flavor = nfss->client->cl_auth->au_flavor; key->key.uniq_len = ulen; memcpy(key->key.uniquifier, uniq, ulen); spin_lock(&nfs_fscache_keys_lock); p = &nfs_fscache_keys.rb_node; parent = NULL; while (*p) { parent = *p; xkey = rb_entry(parent, struct nfs_fscache_key, node); if (key->nfs_client < xkey->nfs_client) goto go_left; if (key->nfs_client > xkey->nfs_client) goto go_right; diff = memcmp(&key->key, &xkey->key, sizeof(key->key)); if (diff < 0) goto go_left; if (diff > 0) goto go_right; if (key->key.uniq_len == 0) goto non_unique; diff = memcmp(key->key.uniquifier, xkey->key.uniquifier, key->key.uniq_len); if (diff < 0) goto go_left; if (diff > 0) goto go_right; goto non_unique; go_left: p = &(*p)->rb_left; continue; go_right: p = &(*p)->rb_right; } rb_link_node(&key->node, parent, p); rb_insert_color(&key->node, &nfs_fscache_keys); spin_unlock(&nfs_fscache_keys_lock); nfss->fscache_key = key; /* create a cache index for looking up filehandles */ nfss->fscache = fscache_acquire_cookie(nfss->nfs_client->fscache, &nfs_fscache_super_index_def, nfss); dfprintk(FSCACHE, "NFS: get superblock cookie (0x%p/0x%p)\n", nfss, nfss->fscache); return; non_unique: spin_unlock(&nfs_fscache_keys_lock); kfree(key); nfss->fscache_key = NULL; nfss->fscache = NULL; printk(KERN_WARNING "NFS:" " Cache request denied due to non-unique superblock keys\n"); } /* * release a per-superblock cookie */ void nfs_fscache_release_super_cookie(struct super_block *sb) { struct nfs_server *nfss = NFS_SB(sb); dfprintk(FSCACHE, "NFS: releasing superblock cookie (0x%p/0x%p)\n", nfss, nfss->fscache); fscache_relinquish_cookie(nfss->fscache, 0); nfss->fscache = NULL; if (nfss->fscache_key) { spin_lock(&nfs_fscache_keys_lock); rb_erase(&nfss->fscache_key->node, &nfs_fscache_keys); spin_unlock(&nfs_fscache_keys_lock); kfree(nfss->fscache_key); nfss->fscache_key = NULL; } } /* * Initialise the per-inode cache cookie pointer for an NFS inode. */ void nfs_fscache_init_inode_cookie(struct inode *inode) { NFS_I(inode)->fscache = NULL; if (S_ISREG(inode->i_mode)) set_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags); } /* * Get the per-inode cache cookie for an NFS inode. */ static void nfs_fscache_enable_inode_cookie(struct inode *inode) { struct super_block *sb = inode->i_sb; struct nfs_inode *nfsi = NFS_I(inode); if (nfsi->fscache || !NFS_FSCACHE(inode)) return; if ((NFS_SB(sb)->options & NFS_OPTION_FSCACHE)) { nfsi->fscache = fscache_acquire_cookie( NFS_SB(sb)->fscache, &nfs_fscache_inode_object_def, nfsi); dfprintk(FSCACHE, "NFS: get FH cookie (0x%p/0x%p/0x%p)\n", sb, nfsi, nfsi->fscache); } } /* * Release a per-inode cookie. */ void nfs_fscache_release_inode_cookie(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n", nfsi, nfsi->fscache); fscache_relinquish_cookie(nfsi->fscache, 0); nfsi->fscache = NULL; } /* * Retire a per-inode cookie, destroying the data attached to it. */ void nfs_fscache_zap_inode_cookie(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); dfprintk(FSCACHE, "NFS: zapping cookie (0x%p/0x%p)\n", nfsi, nfsi->fscache); fscache_relinquish_cookie(nfsi->fscache, 1); nfsi->fscache = NULL; } /* * Turn off the cache with regard to a per-inode cookie if opened for writing, * invalidating all the pages in the page cache relating to the associated * inode to clear the per-page caching. */ static void nfs_fscache_disable_inode_cookie(struct inode *inode) { clear_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags); if (NFS_I(inode)->fscache) { dfprintk(FSCACHE, "NFS: nfsi 0x%p turning cache off\n", NFS_I(inode)); /* Need to uncache any pages attached to this inode that * fscache knows about before turning off the cache. */ fscache_uncache_all_inode_pages(NFS_I(inode)->fscache, inode); nfs_fscache_zap_inode_cookie(inode); } } /* * wait_on_bit() sleep function for uninterruptible waiting */ static int nfs_fscache_wait_bit(void *flags) { schedule(); return 0; } /* * Lock against someone else trying to also acquire or relinquish a cookie */ static inline void nfs_fscache_inode_lock(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); while (test_and_set_bit(NFS_INO_FSCACHE_LOCK, &nfsi->flags)) wait_on_bit(&nfsi->flags, NFS_INO_FSCACHE_LOCK, nfs_fscache_wait_bit, TASK_UNINTERRUPTIBLE); } /* * Unlock cookie management lock */ static inline void nfs_fscache_inode_unlock(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); smp_mb__before_clear_bit(); clear_bit(NFS_INO_FSCACHE_LOCK, &nfsi->flags); smp_mb__after_clear_bit(); wake_up_bit(&nfsi->flags, NFS_INO_FSCACHE_LOCK); } /* * Decide if we should enable or disable local caching for this inode. * - For now, with NFS, only regular files that are open read-only will be able * to use the cache. * - May be invoked multiple times in parallel by parallel nfs_open() functions. */ void nfs_fscache_set_inode_cookie(struct inode *inode, struct file *filp) { if (NFS_FSCACHE(inode)) { nfs_fscache_inode_lock(inode); if ((filp->f_flags & O_ACCMODE) != O_RDONLY) nfs_fscache_disable_inode_cookie(inode); else nfs_fscache_enable_inode_cookie(inode); nfs_fscache_inode_unlock(inode); } } /* * Replace a per-inode cookie due to revalidation detecting a file having * changed on the server. */ void nfs_fscache_reset_inode_cookie(struct inode *inode) { struct nfs_inode *nfsi = NFS_I(inode); struct nfs_server *nfss = NFS_SERVER(inode); struct fscache_cookie *old = nfsi->fscache; nfs_fscache_inode_lock(inode); if (nfsi->fscache) { /* retire the current fscache cache and get a new one */ fscache_relinquish_cookie(nfsi->fscache, 1); nfsi->fscache = fscache_acquire_cookie( nfss->nfs_client->fscache, &nfs_fscache_inode_object_def, nfsi); dfprintk(FSCACHE, "NFS: revalidation new cookie (0x%p/0x%p/0x%p/0x%p)\n", nfss, nfsi, old, nfsi->fscache); } nfs_fscache_inode_unlock(inode); } /* * Release the caching state associated with a page, if the page is
module  \$_DFF_N_ (input D, C, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFF_P_ (input D, C, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFFE_NN_ (input D, C, E, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFFE_PN_ (input D, C, E, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFFE_NP_ (input D, C, E, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFFE_PP_ (input D, C, E, output Q);
    parameter _TECHMAP_WIREINIT_Q_ = 1'bx;
    generate if (_TECHMAP_WIREINIT_Q_ === 1'b1)
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    else
        TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(1'b0), .DI(D), .Q(Q));
    endgenerate
    wire _TECHMAP_REMOVEINIT_Q_ = 1'b1;
endmodule

module  \$_DFF_NP0_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFF_NP1_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFF_PP0_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFF_PP1_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

module  \$_SDFF_NP0_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFF_NP1_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFF_PP0_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFF_PP1_ (input D, C, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

module  \$_DFFE_NP0P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_NP1P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_PP0P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_PP1P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

module  \$_DFFE_NP0N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_NP1N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_PP0N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_DFFE_PP1N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

module  \$_SDFFE_NP0P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_NP1P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_PP0P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_PP1P_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("CE"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

module  \$_SDFFE_NP0N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_NP1N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("INV"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_PP0N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule
module  \$_SDFFE_PP1N_ (input D, C, E, R, output Q); TRELLIS_FF #(.GSR("AUTO"), .CEMUX("INV"), .CLKMUX("CLK"), .LSRMUX("LSR"), .REGSET("SET"), .SRMODE("LSR_OVER_CE"))  _TECHMAP_REPLACE_ (.CLK(C), .CE(E), .LSR(R), .DI(D), .Q(Q)); wire _TECHMAP_REMOVEINIT_Q_ = 1'b1; endmodule

`ifdef ASYNC_PRLD
module  \$_DLATCH_N_ (input E, input D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.LSR(!E), .DI(1'b0), .M(D), .Q(Q)); endmodule
module  \$_DLATCH_P_ (input E, input D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.LSR(E), .DI(1'b0), .M(D), .Q(Q)); endmodule

module \$_DFFSR_NPP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("INV"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || R), .DI(D), .M(!R), .Q(Q)); endmodule

module \$_DFFSR_PPP_ (input C, S, R, D, output Q); TRELLIS_FF #(.GSR("DISABLED"), .CEMUX("1"), .CLKMUX("CLK"), .LSRMODE("PRLD"), .LSRMUX("LSR"), .REGSET("RESET"), .SRMODE("ASYNC"))  _TECHMAP_REPLACE_ (.CLK(C), .LSR(S || R), .DI(D), .M(!R), .Q(Q)); endmodule
`endif

`include "cells_ff.vh"
`include "cells_io.vh"

`ifndef NO_LUT
module \$lut (A, Y);
    parameter WIDTH = 0;
    parameter LUT = 0;

    (* force_downto *)
    input [WIDTH-1:0] A;
    output Y;

    generate
        if (WIDTH == 1) begin
            localparam [15:0] INIT = {{8{LUT[1]}}, {8{LUT[0]}}};
            LUT4 #(.INIT(INIT)) _TECHMAP_REPLACE_ (.Z(Y),
                .A(1'b0), .B(1'b0), .C(1'b0), .D(A[0]));
        end else
        if (WIDTH == 2) begin
            localparam [15:0] INIT = {{4{LUT[3]}}, {4{LUT[2]}}, {4{LUT[1]}}, {4{LUT[0]}}};
            LUT4 #(.INIT(INIT)) _TECHMAP_REPLACE_ (.Z(Y),
                .A(1'b0), .B(1'b0), .C(A[0]), .D(A[1]));
        end else
        if (WIDTH == 3) begin
            localparam [15:0] INIT = {{2{LUT[7]}}, {2{LUT[6]}}, {2{LUT[5]}}, {2{LUT[4]}}, {2{LUT[3]}}, {2{LUT[2]}}, {2{LUT[1]}}, {2{LUT[0]}}};
            LUT4 #(.INIT(INIT)) _TECHMAP_REPLACE_ (.Z(Y),
                .A(1'b0), .B(A[0]), .C(A[1]), .D(A[2]));
        end else
        if (WIDTH == 4) begin
            LUT4 #(.INIT(LUT)) _TECHMAP_REPLACE_ (.Z(Y),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
        `ifndef NO_PFUMUX
        end else
        if (WIDTH == 5) begin
            wire f0, f1;
            LUT4 #(.INIT(LUT[15: 0])) lut0 (.Z(f0),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[31:16])) lut1 (.Z(f1),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            PFUMX mux5(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(Y));
        end else
        if (WIDTH == 6) begin
            wire f0, f1, f2, f3, g0, g1;
            LUT4 #(.INIT(LUT[15: 0])) lut0 (.Z(f0),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[31:16])) lut1 (.Z(f1),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            LUT4 #(.INIT(LUT[47:32])) lut2 (.Z(f2),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[63:48])) lut3 (.Z(f3),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            PFUMX mux50(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(g0));
            PFUMX mux51(.ALUT(f3), .BLUT(f2), .C0(A[4]), .Z(g1));
            L6MUX21 mux6 (.D0(g0), .D1(g1), .SD(A[5]), .Z(Y));
        end else
        if (WIDTH == 7) begin
            wire f0, f1, f2, f3, f4, f5, f6, f7, g0, g1, g2, g3, h0, h1;
            LUT4 #(.INIT(LUT[15: 0])) lut0 (.Z(f0),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[31:16])) lut1 (.Z(f1),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            LUT4 #(.INIT(LUT[47:32])) lut2 (.Z(f2),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[63:48])) lut3 (.Z(f3),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            LUT4 #(.INIT(LUT[79:64])) lut4 (.Z(f4),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[95:80])) lut5 (.Z(f5),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            LUT4 #(.INIT(LUT[111: 96])) lut6 (.Z(f6),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));
            LUT4 #(.INIT(LUT[127:112])) lut7 (.Z(f7),
                .A(A[0]), .B(A[1]), .C(A[2]), .D(A[3]));

            PFUMX mux50(.ALUT(f1), .BLUT(f0), .C0(A[4]), .Z(g0));
            PFUMX mux51(.ALUT(f3), .BLUT(f2), .C0(A[4]), .Z(g1));
            PFUMX mux52(.ALUT(f5), .BLUT(f4), .C0(A[4]), .Z(g2));
            PFUMX mux53(.ALUT(f7), .BLUT(f6), .C0(A[4]), .Z(g3));
            L6MUX21 mux60 (.D0(g0), .D1(g1), .SD(A[5]), .Z(h0));
            L6MUX21 mux61 (.D0(g2), .D1(g3), .SD(A[5]), .Z(h1));
            L6MUX21 mux7  (.D0(h0), .D1(h1), .SD(A[6]), .Z(Y));
        `endif
        end else begin
            wire _TECHMAP_FAIL_ = 1;
        end
    endgenerate
endmodule
`endif
generated by cgit v1.2.3 (git 2.25.1) at 2026-01-03 01:17:10 +0000