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      1 /*	$NetBSD: rmixlvar.h,v 1.7 2014/03/11 08:19:45 mrg Exp $	*/
      2 
      3 /*
      4  * Copyright 2002 Wasabi Systems, Inc.
      5  * All rights reserved.
      6  *
      7  * Written by Simon Burge for Wasabi Systems, Inc.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. All advertising materials mentioning features or use of this software
     18  *    must display the following acknowledgement:
     19  *      This product includes software developed for the NetBSD Project by
     20  *      Wasabi Systems, Inc.
     21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     22  *    or promote products derived from this software without specific prior
     23  *    written permission.
     24  *
     25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     35  * POSSIBILITY OF SUCH DAMAGE.
     36  */
     37 
     38 #ifndef _MIPS_RMI_RMIXLVAR_H_
     39 #define _MIPS_RMI_RMIXLVAR_H_
     40 
     41 #include <mips/cpu.h>
     42 #include <mips/locore.h>
     43 #include <mips/rmi/rmixl_firmware.h>
     44 
     45 #include <sys/bus.h>
     46 
     47 #include <dev/pci/pcivar.h>
     48 
     49 extern void rmixl_pcr_init_core(void);
     50 
     51 static inline bool
     52 cpu_rmixl(const struct pridtab *ct)
     53 {
     54 	if (ct->cpu_cid == MIPS_PRID_CID_RMI)
     55 		return true;
     56 	return false;
     57 }
     58 
     59 static inline bool
     60 cpu_rmixlr(const struct pridtab *ct)
     61 {
     62 	u_int type = ct->cpu_cidflags & MIPS_CIDFL_RMI_TYPE;
     63 	if (cpu_rmixl(ct) && type == CIDFL_RMI_TYPE_XLR)
     64 		return true;
     65 	return false;
     66 }
     67 
     68 static inline bool
     69 cpu_rmixls(const struct pridtab *ct)
     70 {
     71 	u_int type = ct->cpu_cidflags & MIPS_CIDFL_RMI_TYPE;
     72 	if (cpu_rmixl(ct) && type == CIDFL_RMI_TYPE_XLS)
     73 		return true;
     74 	return false;
     75 }
     76 
     77 static inline bool
     78 cpu_rmixlp(const struct pridtab *ct)
     79 {
     80 	u_int type = ct->cpu_cidflags & MIPS_CIDFL_RMI_TYPE;
     81 	if (cpu_rmixl(ct) && type == CIDFL_RMI_TYPE_XLP)
     82 		return true;
     83 	return false;
     84 }
     85 
     86 static inline int
     87 cpu_rmixl_chip_type(const struct pridtab *ct)
     88 {
     89 	return ct->cpu_cidflags & MIPS_CIDFL_RMI_TYPE;
     90 }
     91 
     92 typedef enum {
     93 	PSB_TYPE_UNKNOWN=0,
     94 	PSB_TYPE_RMI,
     95 	PSB_TYPE_DELL,
     96 } rmixlfw_psb_type_t;
     97 
     98 static inline const char *
     99 rmixlfw_psb_type_name(rmixlfw_psb_type_t type)
    100 {
    101 	switch(type) {
    102 	case PSB_TYPE_UNKNOWN:
    103 		return "unknown";
    104 	case PSB_TYPE_RMI:
    105 		return "RMI";
    106 	case PSB_TYPE_DELL:
    107 		return "DELL";
    108 	default:
    109 		return "undefined";
    110 	}
    111 }
    112 
    113 struct rmixl_config {
    114 	uint64_t		 rc_io_pbase;
    115 	uint64_t		 rc_flash_pbase;	/* FLASH_BAR */
    116 	uint64_t		 rc_flash_mask;		/* FLASH_BAR */
    117 	bus_addr_t		 rc_pci_cfg_pbase;
    118 	bus_size_t		 rc_pci_cfg_size;
    119 	bus_addr_t		 rc_pci_ecfg_pbase;
    120 	bus_size_t		 rc_pci_ecfg_size;
    121 	bus_addr_t		 rc_pci_mem_pbase;
    122 	bus_size_t		 rc_pci_mem_size;
    123 	bus_addr_t		 rc_pci_io_pbase;
    124 	bus_size_t		 rc_pci_io_size;
    125 	struct mips_bus_space	 rc_obio_eb_memt; 	/* DEVIO -eb */
    126 	struct mips_bus_space	 rc_obio_el_memt; 	/* DEVIO -el */
    127 	struct mips_bus_space	 rc_iobus_memt; 	/* Peripherals IO Bus */
    128 	struct mips_bus_space	 rc_pci_cfg_memt; 	/* PCI CFG  */
    129 	struct mips_bus_space	 rc_pci_ecfg_memt; 	/* PCI ECFG */
    130 	struct mips_bus_space	 rc_pci_memt; 		/* PCI MEM */
    131 	struct mips_bus_space	 rc_pci_iot; 		/* PCI IO  */
    132 	struct mips_bus_dma_tag	 rc_dma_tag;
    133 	bus_dma_tag_t		 rc_64bit_dmat;
    134 	bus_dma_tag_t		 rc_32bit_dmat;
    135 	bus_dma_tag_t		 rc_29bit_dmat;
    136 	struct extent		*rc_phys_ex;	/* Note: MB units */
    137 	struct extent		*rc_obio_eb_ex;
    138 	struct extent		*rc_obio_el_ex;
    139 	struct extent		*rc_iobus_ex;
    140 	struct extent		*rc_pci_cfg_ex;
    141 	struct extent		*rc_pci_ecfg_ex;
    142 	struct extent		*rc_pci_mem_ex;
    143 	struct extent		*rc_pci_io_ex;
    144 	int			 rc_mallocsafe;
    145 	rmixlfw_info_t 		 rc_psb_info;
    146 	rmixlfw_psb_type_t	 rc_psb_type;
    147 	volatile struct rmixlfw_cpu_wakeup_info
    148 				*rc_cpu_wakeup_info;
    149 	const void		*rc_cpu_wakeup_end;
    150 };
    151 
    152 extern struct rmixl_config rmixl_configuration;
    153 
    154 extern void rmixl_obio_eb_bus_mem_init(bus_space_tag_t, void *);
    155 extern void rmixl_obio_el_bus_mem_init(bus_space_tag_t, void *);
    156 extern void rmixl_iobus_bus_mem_init(bus_space_tag_t, void *);
    157 extern void rmixl_pci_cfg_bus_mem_init(bus_space_tag_t, void *);
    158 extern void rmixl_pci_ecfg_bus_mem_init(bus_space_tag_t, void *);
    159 extern void rmixl_pci_bus_mem_init(bus_space_tag_t, void *);
    160 extern void rmixl_pci_bus_io_init(bus_space_tag_t, void *);
    161 
    162 extern void rmixl_addr_error_init(void);
    163 extern int  rmixl_addr_error_check(void);
    164 
    165 extern uint64_t rmixl_mfcr(u_int);
    166 extern void rmixl_mtcr(uint64_t, u_int);
    167 extern void rmixl_eirr_ack(uint64_t, uint64_t, uint64_t);
    168 
    169 
    170 /*
    171  * rmixl_cache_err_dis:
    172  * - disable Cache, Data ECC, Snoop Tag Parity, Tag Parity errors
    173  * - clear the cache error log
    174  * - return previous value from RMIXL_PCR_L1D_CONFIG0
    175  */
    176 static inline uint64_t
    177 rmixl_cache_err_dis(void)
    178 {
    179 	uint64_t r;
    180 
    181 	r = rmixl_mfcr(RMIXL_PCR_L1D_CONFIG0);
    182 	rmixl_mtcr(RMIXL_PCR_L1D_CONFIG0, r & ~0x2e);
    183 	rmixl_mtcr(RMIXL_PCR_L1D_CACHE_ERROR_LOG, 0);
    184 	return r;
    185 }
    186 
    187 /*
    188  * rmixl_cache_err_restore:
    189  * - clear the cache error log, cache error overflow log,
    190  *   and cache interrupt registers
    191  * - restore previous value to RMIXL_PCR_L1D_CONFIG0
    192  */
    193 static inline void
    194 rmixl_cache_err_restore(uint64_t r)
    195 {
    196 	rmixl_mtcr(RMIXL_PCR_L1D_CACHE_ERROR_LOG, 0);
    197 	rmixl_mtcr(RMIXL_PCR_L1D_CACHE_ERROR_OVF_LO, 0);
    198 	rmixl_mtcr(RMIXL_PCR_L1D_CACHE_INTERRUPT, 0);
    199 	rmixl_mtcr(RMIXL_PCR_L1D_CONFIG0, r);
    200 }
    201 
    202 static inline uint64_t
    203 rmixl_cache_err_check(void)
    204 {
    205 	return rmixl_mfcr(RMIXL_PCR_L1D_CACHE_ERROR_LOG);
    206 }
    207 
    208 static inline int
    209 rmixl_probe_4(volatile uint32_t *va)
    210 {
    211 	uint32_t r;
    212 	int err;
    213 	int s;
    214 
    215 	s = splhigh();
    216 	r = rmixl_cache_err_dis();
    217 	(void)*va;			/* probe */
    218 	err = rmixl_cache_err_check();
    219 	rmixl_cache_err_restore(r);
    220 	splx(s);
    221 
    222 	return (err == 0);
    223 }
    224 
    225 #endif	/* _MIPS_RMI_RMIXLVAR_H_ */
    226