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octeon_pci.c revision 1.1 
      1 /*	$NetBSD: octeon_pci.c,v 1.1 2015/04/29 08:32:01 hikaru Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2007, 2008 Internet Initiative Japan, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: octeon_pci.c,v 1.1 2015/04/29 08:32:01 hikaru Exp $");
     31 
     32 #include "opt_octeon.h"
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/types.h>
     37 #include <sys/device.h>
     38 
     39 #include <sys/bus.h>
     40 
     41 #include <mips/cavium/octeonvar.h>
     42 #include <mips/cavium/dev/octeon_ciureg.h>
     43 #include <mips/cavium/dev/octeon_npireg.h>
     44 
     45 /*
     46  * In OCTEON, some infrequent, error interrupts (RML) are handled with PCI
     47  * interrupt.  Hence, here.
     48  */
     49 
     50 void			octeon_pci_bootstrap(struct octeon_config *);
     51 static void		octeon_pci_init(void);
     52 
     53 #ifdef OCTEON_ETH_DEBUG
     54 static int		octeon_pci_intr_rml(void *);
     55 static void		*octeon_pci_intr_rml_ih;
     56 #endif
     57 
     58 void
     59 octeon_pci_bootstrap(struct octeon_config *mcp)
     60 {
     61 	octeon_pci_init();
     62 }
     63 
     64 static void
     65 octeon_pci_init(void)
     66 {
     67 #ifdef OCTEON_ETH_DEBUG
     68 	octeon_pci_intr_rml_ih = octeon_intr_establish(
     69 	    ffs64(CIU_INTX_SUM0_RML) - 1, 0, IPL_NET, octeon_pci_intr_rml, NULL);
     70 #endif
     71 }
     72 
     73 #ifdef OCTEON_ETH_DEBUG
     74 int octeon_pci_intr_rml_verbose;
     75 
     76 void			octeon_gmx_intr_rml_gmx0(void *);
     77 void			octeon_gmx_intr_rml_gmx1(void *);
     78 void			octeon_asx_intr_rml(void *);
     79 void			octeon_ipd_intr_rml(void *);
     80 void			octeon_pip_intr_rml(void *);
     81 void			octeon_pow_intr_rml(void *);
     82 void			octeon_pko_intr_rml(void *);
     83 void			octeon_fpa_intr_rml(void *);
     84 
     85 static int
     86 octeon_pci_intr_rml(void *arg)
     87 {
     88 	uint64_t block;
     89 
     90 	block = octeon_read_csr(NPI_RSL_INT_BLOCKS);
     91 	if (octeon_pci_intr_rml_verbose)
     92 		printf("%s: block=0x%016" PRIx64 "\n", __func__, block);
     93 	if (ISSET(block, NPI_RSL_INT_BLOCKS_GMX0))
     94 		octeon_gmx_intr_rml_gmx0(arg);
     95 #ifdef notyet
     96 	if (ISSET(block, NPI_RSL_INT_BLOCKS_GMX1))
     97 		octeon_gmx_intr_rml_gmx1(arg);
     98 #endif
     99 	if (ISSET(block, NPI_RSL_INT_BLOCKS_ASX0))
    100 		octeon_asx_intr_rml(arg);
    101 	if (ISSET(block, NPI_RSL_INT_BLOCKS_IPD))
    102 		octeon_ipd_intr_rml(arg);
    103 	if (ISSET(block, NPI_RSL_INT_BLOCKS_PIP))
    104 		octeon_pip_intr_rml(arg);
    105 	if (ISSET(block, NPI_RSL_INT_BLOCKS_POW))
    106 		octeon_pow_intr_rml(arg);
    107 	if (ISSET(block, NPI_RSL_INT_BLOCKS_PKO))
    108 		octeon_pko_intr_rml(arg);
    109 	if (ISSET(block, NPI_RSL_INT_BLOCKS_FPA))
    110 		octeon_fpa_intr_rml(arg);
    111 	return 1;
    112 }
    113 #endif
    114