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NetBSD/sys/dev/ic/spdmemreg.h

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Split spdmem driver into a bus attachment and a common back-end probe and ROM decode, to follow similar changes made in OpenBSD: http://article.gmane.org/gmane.os.openbsd.cvs/94948 http://article.gmane.org/gmane.os.openbsd.cvs/94956 There exists at least one alternative attachment (for SGI IP35 systems; see http://article.gmane.org/gmane.os.openbsd.cvs/94947), and there could be more in the future. Thanks to Christoph Egger for pointing out the OpenBSD activity.
2010-03-24 03:31:41 +03:00
/* $NetBSD: spdmemreg.h,v 1.1 2010/03/24 00:31:41 pgoyette Exp $ */
Add spdmem(4) driver. This decodes technical specifications stored in the eeprom on common types of memory modules. The specifications are displayed during boot and can later be queried in the hw.spdmemN sysctl subtree. Stub driver written by Nicolas Joly and greatly improved upon by Paul Goyette. From PR 36745, with additional improvements by Paul and me.
2007-08-18 15:26:35 +04:00
/*
* Copyright (c) 2007 Paul Goyette
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/* possible values for the memory type */
#define SPDMEM_MEMTYPE_FPM 0x01
#define SPDMEM_MEMTYPE_EDO 0x02
#define SPDMEM_MEMTYPE_PIPE_NIBBLE 0x03
#define SPDMEM_MEMTYPE_SDRAM 0x04
#define SPDMEM_MEMTYPE_ROM 0x05
#define SPDMEM_MEMTYPE_DDRSGRAM 0x06
#define SPDMEM_MEMTYPE_DDRSDRAM 0x07
#define SPDMEM_MEMTYPE_DDR2SDRAM 0x08
Miscellaneous clean-ups: 1. Use proper CRc check for FB-DIMMs rather than simple checksum 2. Provide access to entire SPD ROM contents via sysctl, rather than only the first 64 bytes 3. Use macros to define i2c bus address checking 4. General fix-up for RAMBUS memory (not that anyone I know has one) OK garbled@
2008-09-27 10:58:08 +04:00
#define SPDMEM_MEMTYPE_FBDIMM 0x09
#define SPDMEM_MEMTYPE_FBDIMM_PROBE 0x0A
#define SPDMEM_MEMTYPE_DDR3SDRAM 0x0B
#define SPDMEM_MEMTYPE_RAMBUS 0x11
#define SPDMEM_MEMTYPE_DIRECTRAMBUS 0x01
/* Encodings of the size used/total byte for certain memory types */
#define SPDMEM_SPDSIZE_MASK 0x0F /* SPD EEPROM Size */
#define SPDMEM_SPDLEN_128 0x00 /* SPD EEPROM Sizes */
#define SPDMEM_SPDLEN_176 0x10
#define SPDMEM_SPDLEN_256 0x20
#define SPDMEM_SPDLEN_MASK 0x70 /* Bits 4 - 6 */
#define SPDMEM_SPDCRC_116 0x80 /* CRC Bytes covered */
#define SPDMEM_SPDCRC_125 0x00
#define SPDMEM_SPDCRC_MASK 0x80 /* Bit 7 */
Add spdmem(4) driver. This decodes technical specifications stored in the eeprom on common types of memory modules. The specifications are displayed during boot and can later be queried in the hw.spdmemN sysctl subtree. Stub driver written by Nicolas Joly and greatly improved upon by Paul Goyette. From PR 36745, with additional improvements by Paul and me.
2007-08-18 15:26:35 +04:00
/* possible values for the supply voltage */
#define SPDMEM_VOLTAGE_TTL_5V 0x00
#define SPDMEM_VOLTAGE_TTL_LV 0x01
#define SPDMEM_VOLTAGE_HSTTL_1_5V 0x02
#define SPDMEM_VOLTAGE_SSTL_3_3V 0x03
#define SPDMEM_VOLTAGE_SSTL_2_5V 0x04
#define SPDMEM_VOLTAGE_SSTL_1_8V 0x05
/* possible values for module configuration */
#define SPDMEM_MODCONFIG_PARITY 0x01
#define SPDMEM_MODCONFIG_ECC 0x02
/* for DDR2, module configuration is a bit-mask field */
#define SPDMEM_MODCONFIG_HAS_DATA_PARITY 0x01
#define SPDMEM_MODCONFIG_HAS_DATA_ECC 0x02
#define SPDMEM_MODCONFIG_HAS_ADDR_CMD_PARITY 0x04
/* possible values for the refresh field */
#define SPDMEM_REFRESH_STD 0x00
#define SPDMEM_REFRESH_QUARTER 0x01
#define SPDMEM_REFRESH_HALF 0x02
#define SPDMEM_REFRESH_TWOX 0x03
#define SPDMEM_REFRESH_FOURX 0x04
#define SPDMEM_REFRESH_EIGHTX 0x05
#define SPDMEM_REFRESH_SELFREFRESH 0x80
/* superset types */
#define SPDMEM_SUPERSET_ESDRAM 0x01
#define SPDMEM_SUPERSET_DDR_ESDRAM 0x02
#define SPDMEM_SUPERSET_EDO_PEM 0x03
#define SPDMEM_SUPERSET_SDRAM_PEM 0x04
1. Reorganize code into memory-type-specific routines instead of multiple monstrous if-then-else-if constructs. 2. Display module capacity in GB if it is at least 1GB. 3. Indicate if a memory module is "registered". 4. For DDR3, indicate if a temp-sensor is present. Inspired by similar changes in OpenBSD's spdmem(4).
2009-02-22 20:28:50 +03:00
/* bit masks for "registered" module attribute */
#define SPDMEM_SDR_MASK_REG 0x02
#define SPDMEM_DDR_MASK_REG 0x02
#define SPDMEM_DDR2_MASK_REG 0x05
#define SPDMEM_DDR3_TYPE_RDIMM 0x01
#define SPDMEM_DDR3_TYPE_UDIMM 0x02
#define SPDMEM_DDR3_TYPE_SODIMM 0x03
#define SPDMEM_DDR3_TYPE_MICRODIMM 0x04
#define SPDMEM_DDR3_TYPE_MINI_RDIMM 0x05
#define SPDMEM_DDR3_TYPE_MINI_UDIMM 0x06