Commit e7ecd891 authored by Dave Peterson's avatar Dave Peterson Committed by Linus Torvalds

[PATCH] EDAC: formatting cleanup

Cosmetic indentation/formatting cleanup for EDAC code.  Make sure we
are using tabs rather than spaces to indent, etc.
Signed-off-by: default avatarDavid S. Peterson <dsp@llnl.gov>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 54933ddd
......@@ -12,33 +12,26 @@
*
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/slab.h>
#include "edac_mc.h"
#define amd76x_printk(level, fmt, arg...) \
edac_printk(level, "amd76x", fmt, ##arg)
edac_printk(level, "amd76x", fmt, ##arg)
#define amd76x_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "amd76x", fmt, ##arg)
edac_mc_chipset_printk(mci, level, "amd76x", fmt, ##arg)
#define AMD76X_NR_CSROWS 8
#define AMD76X_NR_CHANS 1
#define AMD76X_NR_DIMMS 4
/* AMD 76x register addresses - device 0 function 0 - PCI bridge */
#define AMD76X_ECC_MODE_STATUS 0x48 /* Mode and status of ECC (32b)
*
* 31:16 reserved
......@@ -50,6 +43,7 @@
* 7:4 UE cs row
* 3:0 CE cs row
*/
#define AMD76X_DRAM_MODE_STATUS 0x58 /* DRAM Mode and status (32b)
*
* 31:26 clock disable 5 - 0
......@@ -64,6 +58,7 @@
* 15:8 reserved
* 7:0 x4 mode enable 7 - 0
*/
#define AMD76X_MEM_BASE_ADDR 0xC0 /* Memory base address (8 x 32b)
*
* 31:23 chip-select base
......@@ -74,29 +69,28 @@
* 0 chip-select enable
*/
struct amd76x_error_info {
u32 ecc_mode_status;
};
enum amd76x_chips {
AMD761 = 0,
AMD762
};
struct amd76x_dev_info {
const char *ctl_name;
};
static const struct amd76x_dev_info amd76x_devs[] = {
[AMD761] = {.ctl_name = "AMD761"},
[AMD762] = {.ctl_name = "AMD762"},
[AMD761] = {
.ctl_name = "AMD761"
},
[AMD762] = {
.ctl_name = "AMD762"
},
};
/**
* amd76x_get_error_info - fetch error information
* @mci: Memory controller
......@@ -105,23 +99,21 @@ static const struct amd76x_dev_info amd76x_devs[] = {
* Fetch and store the AMD76x ECC status. Clear pending status
* on the chip so that further errors will be reported
*/
static void amd76x_get_error_info (struct mem_ctl_info *mci,
struct amd76x_error_info *info)
static void amd76x_get_error_info(struct mem_ctl_info *mci,
struct amd76x_error_info *info)
{
pci_read_config_dword(mci->pdev, AMD76X_ECC_MODE_STATUS,
&info->ecc_mode_status);
if (info->ecc_mode_status & BIT(8))
pci_write_bits32(mci->pdev, AMD76X_ECC_MODE_STATUS,
(u32) BIT(8), (u32) BIT(8));
(u32) BIT(8), (u32) BIT(8));
if (info->ecc_mode_status & BIT(9))
pci_write_bits32(mci->pdev, AMD76X_ECC_MODE_STATUS,
(u32) BIT(9), (u32) BIT(9));
(u32) BIT(9), (u32) BIT(9));
}
/**
* amd76x_process_error_info - Error check
* @mci: Memory controller
......@@ -132,8 +124,7 @@ static void amd76x_get_error_info (struct mem_ctl_info *mci,
* A return of 1 indicates an error. Also if handle_errors is true
* then attempt to handle and clean up after the error
*/
static int amd76x_process_error_info (struct mem_ctl_info *mci,
static int amd76x_process_error_info(struct mem_ctl_info *mci,
struct amd76x_error_info *info, int handle_errors)
{
int error_found;
......@@ -149,9 +140,8 @@ static int amd76x_process_error_info (struct mem_ctl_info *mci,
if (handle_errors) {
row = (info->ecc_mode_status >> 4) & 0xf;
edac_mc_handle_ue(mci,
mci->csrows[row].first_page, 0, row,
mci->ctl_name);
edac_mc_handle_ue(mci, mci->csrows[row].first_page, 0,
row, mci->ctl_name);
}
}
......@@ -163,11 +153,11 @@ static int amd76x_process_error_info (struct mem_ctl_info *mci,
if (handle_errors) {
row = info->ecc_mode_status & 0xf;
edac_mc_handle_ce(mci,
mci->csrows[row].first_page, 0, 0, row, 0,
mci->ctl_name);
edac_mc_handle_ce(mci, mci->csrows[row].first_page, 0,
0, row, 0, mci->ctl_name);
}
}
return error_found;
}
......@@ -178,7 +168,6 @@ static int amd76x_process_error_info (struct mem_ctl_info *mci,
* Called by the poll handlers this function reads the status
* from the controller and checks for errors.
*/
static void amd76x_check(struct mem_ctl_info *mci)
{
struct amd76x_error_info info;
......@@ -187,7 +176,6 @@ static void amd76x_check(struct mem_ctl_info *mci)
amd76x_process_error_info(mci, &info, 1);
}
/**
* amd76x_probe1 - Perform set up for detected device
* @pdev; PCI device detected
......@@ -197,7 +185,6 @@ static void amd76x_check(struct mem_ctl_info *mci)
* controller status reporting. We configure and set up the
* memory controller reporting and claim the device.
*/
static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
......@@ -214,10 +201,8 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
struct amd76x_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_dword(pdev, AMD76X_ECC_MODE_STATUS, &ems);
ems_mode = (ems >> 10) & 0x3;
mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS);
if (mci == NULL) {
......@@ -226,14 +211,11 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
}
debugf0("%s(): mci = %p\n", __func__, mci);
mci->pdev = pdev;
mci->mtype_cap = MEM_FLAG_RDDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
mci->edac_cap = ems_mode ?
(EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE;
(EDAC_FLAG_EC | EDAC_FLAG_SECDED) : EDAC_FLAG_NONE;
mci->mod_name = EDAC_MOD_STR;
mci->mod_ver = "$Revision: 1.4.2.5 $";
mci->ctl_name = amd76x_devs[dev_idx].ctl_name;
......@@ -249,18 +231,15 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(mci->pdev,
AMD76X_MEM_BASE_ADDR + (index * 4),
&mba);
AMD76X_MEM_BASE_ADDR + (index * 4), &mba);
if (!(mba & BIT(0)))
continue;
mba_base = mba & 0xff800000UL;
mba_mask = ((mba & 0xff80) << 16) | 0x7fffffUL;
pci_read_config_dword(mci->pdev, AMD76X_DRAM_MODE_STATUS,
&dms);
&dms);
csrow->first_page = mba_base >> PAGE_SHIFT;
csrow->nr_pages = (mba_mask + 1) >> PAGE_SHIFT;
csrow->last_page = csrow->first_page + csrow->nr_pages - 1;
......@@ -290,7 +269,7 @@ fail:
/* returns count (>= 0), or negative on error */
static int __devinit amd76x_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
const struct pci_device_id *ent)
{
debugf0("%s()\n", __func__);
......@@ -298,7 +277,6 @@ static int __devinit amd76x_init_one(struct pci_dev *pdev,
return amd76x_probe1(pdev, ent->driver_data);
}
/**
* amd76x_remove_one - driver shutdown
* @pdev: PCI device being handed back
......@@ -307,7 +285,6 @@ static int __devinit amd76x_init_one(struct pci_dev *pdev,
* structure for the device then delete the mci and free the
* resources.
*/
static void __devexit amd76x_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
......@@ -320,18 +297,22 @@ static void __devexit amd76x_remove_one(struct pci_dev *pdev)
edac_mc_free(mci);
}
static const struct pci_device_id amd76x_pci_tbl[] __devinitdata = {
{PCI_VEND_DEV(AMD, FE_GATE_700C), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
AMD762},
{PCI_VEND_DEV(AMD, FE_GATE_700E), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
AMD761},
{0,} /* 0 terminated list. */
{
PCI_VEND_DEV(AMD, FE_GATE_700C), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
AMD762
},
{
PCI_VEND_DEV(AMD, FE_GATE_700E), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
AMD761
},
{
0,
} /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, amd76x_pci_tbl);
static struct pci_driver amd76x_driver = {
.name = EDAC_MOD_STR,
.probe = amd76x_init_one,
......
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......@@ -15,11 +15,9 @@
*
*/
#ifndef _EDAC_MC_H_
#define _EDAC_MC_H_
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/types.h>
......@@ -33,7 +31,6 @@
#include <linux/completion.h>
#include <linux/kobject.h>
#define EDAC_MC_LABEL_LEN 31
#define MC_PROC_NAME_MAX_LEN 7
......@@ -44,13 +41,13 @@
#endif
#define edac_printk(level, prefix, fmt, arg...) \
printk(level "EDAC " prefix ": " fmt, ##arg)
printk(level "EDAC " prefix ": " fmt, ##arg)
#define edac_mc_printk(mci, level, fmt, arg...) \
printk(level "EDAC MC%d: " fmt, mci->mc_idx, ##arg)
printk(level "EDAC MC%d: " fmt, mci->mc_idx, ##arg)
#define edac_mc_chipset_printk(mci, level, prefix, fmt, arg...) \
printk(level "EDAC " prefix " MC%d: " fmt, mci->mc_idx, ##arg)
printk(level "EDAC " prefix " MC%d: " fmt, mci->mc_idx, ##arg)
/* prefixes for edac_printk() and edac_mc_printk() */
#define EDAC_MC "MC"
......@@ -71,14 +68,16 @@ extern int edac_debug_level;
#define debugf2( ... ) edac_debug_printk(2, __VA_ARGS__ )
#define debugf3( ... ) edac_debug_printk(3, __VA_ARGS__ )
#define debugf4( ... ) edac_debug_printk(4, __VA_ARGS__ )
#else /* !CONFIG_EDAC_DEBUG */
#else /* !CONFIG_EDAC_DEBUG */
#define debugf0( ... )
#define debugf1( ... )
#define debugf2( ... )
#define debugf3( ... )
#define debugf4( ... )
#endif /* !CONFIG_EDAC_DEBUG */
#endif /* !CONFIG_EDAC_DEBUG */
#define edac_xstr(s) edac_str(s)
#define edac_str(s) #s
......@@ -86,7 +85,8 @@ extern int edac_debug_level;
#define BIT(x) (1 << (x))
#define PCI_VEND_DEV(vend, dev) PCI_VENDOR_ID_ ## vend, PCI_DEVICE_ID_ ## vend ## _ ## dev
#define PCI_VEND_DEV(vend, dev) PCI_VENDOR_ID_ ## vend, \
PCI_DEVICE_ID_ ## vend ## _ ## dev
/* memory devices */
enum dev_type {
......@@ -136,7 +136,6 @@ enum mem_type {
#define MEM_FLAG_RDDR BIT(MEM_RDDR)
#define MEM_FLAG_RMBS BIT(MEM_RMBS)
/* chipset Error Detection and Correction capabilities and mode */
enum edac_type {
EDAC_UNKNOWN = 0, /* Unknown if ECC is available */
......@@ -161,7 +160,6 @@ enum edac_type {
#define EDAC_FLAG_S8ECD8ED BIT(EDAC_S8ECD8ED)
#define EDAC_FLAG_S16ECD16ED BIT(EDAC_S16ECD16ED)
/* scrubbing capabilities */
enum scrub_type {
SCRUB_UNKNOWN = 0, /* Unknown if scrubber is available */
......@@ -269,20 +267,19 @@ enum scrub_type {
* PS - I enjoyed writing all that about as much as you enjoyed reading it.
*/
struct channel_info {
int chan_idx; /* channel index */
u32 ce_count; /* Correctable Errors for this CHANNEL */
char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */
char label[EDAC_MC_LABEL_LEN + 1]; /* DIMM label on motherboard */
struct csrow_info *csrow; /* the parent */
};
struct csrow_info {
unsigned long first_page; /* first page number in dimm */
unsigned long last_page; /* last page number in dimm */
unsigned long page_mask; /* used for interleaving -
0UL for non intlv */
* 0UL for non intlv
*/
u32 nr_pages; /* number of pages in csrow */
u32 grain; /* granularity of reported error in bytes */
int csrow_idx; /* the chip-select row */
......@@ -301,18 +298,18 @@ struct csrow_info {
struct channel_info *channels;
};
struct mem_ctl_info {
struct list_head link; /* for global list of mem_ctl_info structs */
unsigned long mtype_cap; /* memory types supported by mc */
unsigned long edac_ctl_cap; /* Mem controller EDAC capabilities */
unsigned long edac_cap; /* configuration capabilities - this is
closely related to edac_ctl_cap. The
difference is that the controller
may be capable of s4ecd4ed which would
be listed in edac_ctl_cap, but if
channels aren't capable of s4ecd4ed then the
edac_cap would not have that capability. */
* closely related to edac_ctl_cap. The
* difference is that the controller may be
* capable of s4ecd4ed which would be listed
* in edac_ctl_cap, but if channels aren't
* capable of s4ecd4ed then the edac_cap would
* not have that capability.
*/
unsigned long scrub_cap; /* chipset scrub capabilities */
enum scrub_type scrub_mode; /* current scrub mode */
......@@ -324,7 +321,7 @@ struct mem_ctl_info {
*/
/* FIXME - why not send the phys page to begin with? */
unsigned long (*ctl_page_to_phys) (struct mem_ctl_info * mci,
unsigned long page);
unsigned long page);
int mc_idx;
int nr_csrows;
struct csrow_info *csrows;
......@@ -356,67 +353,66 @@ struct mem_ctl_info {
struct completion kobj_complete;
};
/* write all or some bits in a byte-register*/
static inline void pci_write_bits8(struct pci_dev *pdev, int offset,
u8 value, u8 mask)
static inline void pci_write_bits8(struct pci_dev *pdev, int offset, u8 value,
u8 mask)
{
if (mask != 0xff) {
u8 buf;
pci_read_config_byte(pdev, offset, &buf);
value &= mask;
buf &= ~mask;
value |= buf;
}
pci_write_config_byte(pdev, offset, value);
}
/* write all or some bits in a word-register*/
static inline void pci_write_bits16(struct pci_dev *pdev, int offset,
u16 value, u16 mask)
u16 value, u16 mask)
{
if (mask != 0xffff) {
u16 buf;
pci_read_config_word(pdev, offset, &buf);
value &= mask;
buf &= ~mask;
value |= buf;
}
pci_write_config_word(pdev, offset, value);
}
/* write all or some bits in a dword-register*/
static inline void pci_write_bits32(struct pci_dev *pdev, int offset,
u32 value, u32 mask)
u32 value, u32 mask)
{
if (mask != 0xffff) {
u32 buf;
pci_read_config_dword(pdev, offset, &buf);
value &= mask;
buf &= ~mask;
value |= buf;
}
pci_write_config_dword(pdev, offset, value);
}
#ifdef CONFIG_EDAC_DEBUG
void edac_mc_dump_channel(struct channel_info *chan);
void edac_mc_dump_mci(struct mem_ctl_info *mci);
void edac_mc_dump_csrow(struct csrow_info *csrow);
#endif /* CONFIG_EDAC_DEBUG */
#endif /* CONFIG_EDAC_DEBUG */
extern int edac_mc_add_mc(struct mem_ctl_info *mci);
extern struct mem_ctl_info * edac_mc_del_mc(struct pci_dev *pdev);
extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,
unsigned long page);
extern void edac_mc_scrub_block(unsigned long page,
unsigned long offset, u32 size);
unsigned long page);
extern void edac_mc_scrub_block(unsigned long page, unsigned long offset,
u32 size);
/*
* The no info errors are used when error overflows are reported.
......@@ -429,31 +425,25 @@ extern void edac_mc_scrub_block(unsigned long page,
* statement clutter and extra function arguments.
*/
extern void edac_mc_handle_ce(struct mem_ctl_info *mci,
unsigned long page_frame_number,
unsigned long offset_in_page,
unsigned long syndrome,
int row, int channel, const char *msg);
unsigned long page_frame_number, unsigned long offset_in_page,
unsigned long syndrome, int row, int channel,
const char *msg);
extern void edac_mc_handle_ce_no_info(struct mem_ctl_info *mci,
const char *msg);
const char *msg);
extern void edac_mc_handle_ue(struct mem_ctl_info *mci,
unsigned long page_frame_number,
unsigned long offset_in_page,
int row, const char *msg);
unsigned long page_frame_number, unsigned long offset_in_page,
int row, const char *msg);
extern void edac_mc_handle_ue_no_info(struct mem_ctl_info *mci,
const char *msg);
const char *msg);
/*
* This kmalloc's and initializes all the structures.
* Can't be used if all structures don't have the same lifetime.
*/
extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt,
unsigned nr_csrows, unsigned nr_chans);
extern struct mem_ctl_info *edac_mc_alloc(unsigned sz_pvt, unsigned nr_csrows,
unsigned nr_chans);
/* Free an mc previously allocated by edac_mc_alloc() */
extern void edac_mc_free(struct mem_ctl_info *mci);
#endif /* _EDAC_MC_H_ */
......@@ -9,7 +9,6 @@
* by Thayne Harbaugh of Linux Networx. (http://lnxi.com)
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
......@@ -18,14 +17,11 @@
#include <linux/slab.h>
#include "edac_mc.h"
#define i82860_printk(level, fmt, arg...) \
edac_printk(level, "i82860", fmt, ##arg)
edac_printk(level, "i82860", fmt, ##arg)
#define i82860_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "i82860", fmt, ##arg)
edac_mc_chipset_printk(mci, level, "i82860", fmt, ##arg)
#ifndef PCI_DEVICE_ID_INTEL_82860_0
#define PCI_DEVICE_ID_INTEL_82860_0 0x2531
......@@ -56,13 +52,15 @@ struct i82860_error_info {
static const struct i82860_dev_info i82860_devs[] = {
[I82860] = {
.ctl_name = "i82860"},
.ctl_name = "i82860"
},
};
static struct pci_dev *mci_pdev = NULL; /* init dev: in case that AGP code
has already registered driver */
* has already registered driver
*/
static void i82860_get_error_info (struct mem_ctl_info *mci,
static void i82860_get_error_info(struct mem_ctl_info *mci,
struct i82860_error_info *info)
{
/*
......@@ -84,14 +82,15 @@ static void i82860_get_error_info (struct mem_ctl_info *mci,
*/
if (!(info->errsts2 & 0x0003))
return;
if ((info->errsts ^ info->errsts2) & 0x0003) {
pci_read_config_dword(mci->pdev, I82860_EAP, &info->eap);
pci_read_config_word(mci->pdev, I82860_DERRCTL_STS,
&info->derrsyn);
&info->derrsyn);
}
}
static int i82860_process_error_info (struct mem_ctl_info *mci,
static int i82860_process_error_info(struct mem_ctl_info *mci,
struct i82860_error_info *info, int handle_errors)
{
int row;
......@@ -113,8 +112,8 @@ static int i82860_process_error_info (struct mem_ctl_info *mci,
if (info->errsts & 0x0002)
edac_mc_handle_ue(mci, info->eap, 0, row, "i82860 UE");
else
edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row,
0, "i82860 UE");
edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row, 0,
"i82860 UE");
return 1;
}
......@@ -147,15 +146,14 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
going to make 1 channel for group.
*/
mci = edac_mc_alloc(0, 16, 1);
if (!mci)
return -ENOMEM;
debugf3("%s(): init mci\n", __func__);
mci->pdev = pdev;
mci->mtype_cap = MEM_FLAG_DDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
/* I"m not sure about this but I think that all RDRAM is SECDED */
mci->edac_cap = EDAC_FLAG_SECDED;
......@@ -182,12 +180,13 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
struct csrow_info *csrow = &mci->csrows[index];
pci_read_config_word(mci->pdev, I82860_GBA + index * 2,
&value);
&value);
cumul_size = (value & I82860_GBA_MASK) <<
(I82860_GBA_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
continue; /* not populated */
......@@ -195,7 +194,7 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
csrow->last_page = cumul_size - 1;
csrow->nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
csrow->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
csrow->grain = 1 << 12; /* I82860_EAP has 4KiB reolution */
csrow->mtype = MEM_RMBS;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = mchcfg_ddim ? EDAC_SECDED : EDAC_NONE;
......@@ -211,23 +210,27 @@ static int i82860_probe1(struct pci_dev *pdev, int dev_idx)
debugf3("%s(): success\n", __func__);
rc = 0;
}
return rc;
}
/* returns count (>= 0), or negative on error */
static int __devinit i82860_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
const struct pci_device_id *ent)
{
int rc;
debugf0("%s()\n", __func__);
i82860_printk(KERN_INFO, "i82860 init one\n");
if(pci_enable_device(pdev) < 0)
if (pci_enable_device(pdev) < 0)
return -EIO;
rc = i82860_probe1(pdev, ent->driver_data);
if(rc == 0)
if (rc == 0)
mci_pdev = pci_dev_get(pdev);
return rc;
}
......@@ -244,9 +247,13 @@ static void __devexit i82860_remove_one(struct pci_dev *pdev)
}
static const struct pci_device_id i82860_pci_tbl[] __devinitdata = {
{PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
I82860},
{0,} /* 0 terminated list. */
{
PCI_VEND_DEV(INTEL, 82860_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
I82860
},
{
0,
} /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, i82860_pci_tbl);
......@@ -263,24 +270,29 @@ static int __init i82860_init(void)
int pci_rc;
debugf3("%s()\n", __func__);
if ((pci_rc = pci_register_driver(&i82860_driver)) < 0)
goto fail0;
if (!mci_pdev) {
mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82860_0, NULL);
PCI_DEVICE_ID_INTEL_82860_0, NULL);
if (mci_pdev == NULL) {
debugf0("860 pci_get_device fail\n");
pci_rc = -ENODEV;
goto fail1;
}
pci_rc = i82860_init_one(mci_pdev, i82860_pci_tbl);
if (pci_rc < 0) {
debugf0("860 init fail\n");
pci_rc = -ENODEV;
goto fail1;
}
}
return 0;
fail1:
......@@ -307,6 +319,6 @@ module_init(i82860_init);
module_exit(i82860_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR
("Red Hat Inc. (http://www.redhat.com) Ben Woodard <woodard@redhat.com>");
MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com) "
"Ben Woodard <woodard@redhat.com>");
MODULE_DESCRIPTION("ECC support for Intel 82860 memory hub controllers");
......@@ -13,26 +13,19 @@
* Note: E7210 appears same as D82875P - zhenyu.z.wang at intel.com
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/slab.h>
#include "edac_mc.h"
#define i82875p_printk(level, fmt, arg...) \
edac_printk(level, "i82875p", fmt, ##arg)
edac_printk(level, "i82875p", fmt, ##arg)
#define i82875p_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "i82875p", fmt, ##arg)
edac_mc_chipset_printk(mci, level, "i82875p", fmt, ##arg)
#ifndef PCI_DEVICE_ID_INTEL_82875_0
#define PCI_DEVICE_ID_INTEL_82875_0 0x2578
......@@ -42,11 +35,9 @@
#define PCI_DEVICE_ID_INTEL_82875_6 0x257e
#endif /* PCI_DEVICE_ID_INTEL_82875_6 */
/* four csrows in dual channel, eight in single channel */
#define I82875P_NR_CSROWS(nr_chans) (8/(nr_chans))
/* Intel 82875p register addresses - device 0 function 0 - DRAM Controller */
#define I82875P_EAP 0x58 /* Error Address Pointer (32b)
*
......@@ -95,7 +86,6 @@
* 0 reserved
*/
/* Intel 82875p register addresses - device 6 function 0 - DRAM Controller */
#define I82875P_PCICMD6 0x04 /* PCI Command Register (16b)
*
......@@ -159,23 +149,19 @@
* 1:0 DRAM type 01=DDR
*/
enum i82875p_chips {
I82875P = 0,
};
struct i82875p_pvt {
struct pci_dev *ovrfl_pdev;
void __iomem *ovrfl_window;
};
struct i82875p_dev_info {
const char *ctl_name;
};
struct i82875p_error_info {
u16 errsts;
u32 eap;
......@@ -184,17 +170,19 @@ struct i82875p_error_info {
u16 errsts2;
};
static const struct i82875p_dev_info i82875p_devs[] = {
[I82875P] = {
.ctl_name = "i82875p"},
.ctl_name = "i82875p"
},
};
static struct pci_dev *mci_pdev = NULL; /* init dev: in case that AGP code
has already registered driver */
static struct pci_dev *mci_pdev = NULL; /* init dev: in case that AGP code has
* already registered driver
*/
static int i82875p_registered = 1;
static void i82875p_get_error_info (struct mem_ctl_info *mci,
static void i82875p_get_error_info(struct mem_ctl_info *mci,
struct i82875p_error_info *info)
{
/*
......@@ -218,15 +206,16 @@ static void i82875p_get_error_info (struct mem_ctl_info *mci,
*/
if (!(info->errsts2 & 0x0081))
return;
if ((info->errsts ^ info->errsts2) & 0x0081) {
pci_read_config_dword(mci->pdev, I82875P_EAP, &info->eap);
pci_read_config_byte(mci->pdev, I82875P_DES, &info->des);
pci_read_config_byte(mci->pdev, I82875P_DERRSYN,
&info->derrsyn);
&info->derrsyn);
}
}
static int i82875p_process_error_info (struct mem_ctl_info *mci,
static int i82875p_process_error_info(struct mem_ctl_info *mci,
struct i82875p_error_info *info, int handle_errors)
{
int row, multi_chan;
......@@ -251,13 +240,12 @@ static int i82875p_process_error_info (struct mem_ctl_info *mci,
edac_mc_handle_ue(mci, info->eap, 0, row, "i82875p UE");
else
edac_mc_handle_ce(mci, info->eap, 0, info->derrsyn, row,
multi_chan ? (info->des & 0x1) : 0,
"i82875p CE");
multi_chan ? (info->des & 0x1) : 0,
"i82875p CE");
return 1;
}
static void i82875p_check(struct mem_ctl_info *mci)
{
struct i82875p_error_info info;
......@@ -267,7 +255,6 @@ static void i82875p_check(struct mem_ctl_info *mci)
i82875p_process_error_info(mci, &info, 1);
}
#ifdef CONFIG_PROC_FS
extern int pci_proc_attach_device(struct pci_dev *);
#endif
......@@ -281,7 +268,6 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
unsigned long last_cumul_size;
struct pci_dev *ovrfl_pdev;
void __iomem *ovrfl_window = NULL;
u32 drc;
u32 drc_chan; /* Number of channels 0=1chan,1=2chan */
u32 nr_chans;
......@@ -289,7 +275,6 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
struct i82875p_error_info discard;
debugf0("%s()\n", __func__);
ovrfl_pdev = pci_get_device(PCI_VEND_DEV(INTEL, 82875_6), NULL);
if (!ovrfl_pdev) {
......@@ -301,22 +286,23 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
*/
pci_write_bits8(pdev, 0xf4, 0x2, 0x2);
ovrfl_pdev =
pci_scan_single_device(pdev->bus, PCI_DEVFN(6, 0));
pci_scan_single_device(pdev->bus, PCI_DEVFN(6, 0));
if (!ovrfl_pdev)
return -ENODEV;
}
#ifdef CONFIG_PROC_FS
if (!ovrfl_pdev->procent && pci_proc_attach_device(ovrfl_pdev)) {
i82875p_printk(KERN_ERR,
"%s(): Failed to attach overflow device\n",
__func__);
"%s(): Failed to attach overflow device\n", __func__);
return -ENODEV;
}
#endif /* CONFIG_PROC_FS */
#endif
/* CONFIG_PROC_FS */
if (pci_enable_device(ovrfl_pdev)) {
i82875p_printk(KERN_ERR,
"%s(): Failed to enable overflow device\n",
__func__);
"%s(): Failed to enable overflow device\n", __func__);
return -ENODEV;
}
......@@ -325,13 +311,14 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
goto fail0;
#endif
}
/* cache is irrelevant for PCI bus reads/writes */
ovrfl_window = ioremap_nocache(pci_resource_start(ovrfl_pdev, 0),
pci_resource_len(ovrfl_pdev, 0));
pci_resource_len(ovrfl_pdev, 0));
if (!ovrfl_window) {
i82875p_printk(KERN_ERR, "%s(): Failed to ioremap bar6\n",
__func__);
__func__);
goto fail1;
}
......@@ -339,10 +326,10 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
drc = readl(ovrfl_window + I82875P_DRC);
drc_chan = ((drc >> 21) & 0x1);
nr_chans = drc_chan + 1;
drc_ddim = (drc >> 18) & 0x1;
drc_ddim = (drc >> 18) & 0x1;
mci = edac_mc_alloc(sizeof(*pvt), I82875P_NR_CSROWS(nr_chans),
nr_chans);
nr_chans);
if (!mci) {
rc = -ENOMEM;
......@@ -350,10 +337,8 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
}
debugf3("%s(): init mci\n", __func__);
mci->pdev = pdev;
mci->mtype_cap = MEM_FLAG_DDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
mci->edac_cap = EDAC_FLAG_UNKNOWN;
/* adjust FLAGS */
......@@ -363,9 +348,7 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
mci->ctl_name = i82875p_devs[dev_idx].ctl_name;
mci->edac_check = i82875p_check;
mci->ctl_page_to_phys = NULL;
debugf3("%s(): init pvt\n", __func__);
pvt = (struct i82875p_pvt *) mci->pvt_info;
pvt->ovrfl_pdev = ovrfl_pdev;
pvt->ovrfl_window = ovrfl_window;
......@@ -385,6 +368,7 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
cumul_size = value << (I82875P_DRB_SHIFT - PAGE_SHIFT);
debugf3("%s(): (%d) cumul_size 0x%x\n", __func__, index,
cumul_size);
if (cumul_size == last_cumul_size)
continue; /* not populated */
......@@ -392,7 +376,7 @@ static int i82875p_probe1(struct pci_dev *pdev, int dev_idx)
csrow->last_page = cumul_size - 1;
csrow->nr_pages = cumul_size - last_cumul_size;
last_cumul_size = cumul_size;
csrow->grain = 1 << 12; /* I82875P_EAP has 4KiB reolution */
csrow->grain = 1 << 12; /* I82875P_EAP has 4KiB reolution */
csrow->mtype = MEM_DDR;
csrow->dtype = DEV_UNKNOWN;
csrow->edac_mode = drc_ddim ? EDAC_SECDED : EDAC_NONE;
......@@ -426,25 +410,26 @@ fail0:
return rc;
}
/* returns count (>= 0), or negative on error */
static int __devinit i82875p_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
const struct pci_device_id *ent)
{
int rc;
debugf0("%s()\n", __func__);
i82875p_printk(KERN_INFO, "i82875p init one\n");
if(pci_enable_device(pdev) < 0)
if (pci_enable_device(pdev) < 0)
return -EIO;
rc = i82875p_probe1(pdev, ent->driver_data);
if (mci_pdev == NULL)
mci_pdev = pci_dev_get(pdev);
return rc;
}
static void __devexit i82875p_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
......@@ -456,6 +441,7 @@ static void __devexit i82875p_remove_one(struct pci_dev *pdev)
return;
pvt = (struct i82875p_pvt *) mci->pvt_info;
if (pvt->ovrfl_window)
iounmap(pvt->ovrfl_window);
......@@ -470,16 +456,18 @@ static void __devexit i82875p_remove_one(struct pci_dev *pdev)
edac_mc_free(mci);
}
static const struct pci_device_id i82875p_pci_tbl[] __devinitdata = {
{PCI_VEND_DEV(INTEL, 82875_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
I82875P},
{0,} /* 0 terminated list. */
{
PCI_VEND_DEV(INTEL, 82875_0), PCI_ANY_ID, PCI_ANY_ID, 0, 0,
I82875P
},
{
0,
} /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, i82875p_pci_tbl);
static struct pci_driver i82875p_driver = {
.name = EDAC_MOD_STR,
.probe = i82875p_init_one,
......@@ -487,31 +475,35 @@ static struct pci_driver i82875p_driver = {
.id_table = i82875p_pci_tbl,
};
static int __init i82875p_init(void)
{
int pci_rc;
debugf3("%s()\n", __func__);
pci_rc = pci_register_driver(&i82875p_driver);
if (pci_rc < 0)
goto fail0;
if (mci_pdev == NULL) {
mci_pdev =
pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82875_0, NULL);
mci_pdev = pci_get_device(PCI_VENDOR_ID_INTEL,
PCI_DEVICE_ID_INTEL_82875_0, NULL);
if (!mci_pdev) {
debugf0("875p pci_get_device fail\n");
pci_rc = -ENODEV;
goto fail1;
}
pci_rc = i82875p_init_one(mci_pdev, i82875p_pci_tbl);
if (pci_rc < 0) {
debugf0("875p init fail\n");
pci_rc = -ENODEV;
goto fail1;
}
}
return 0;
fail1:
......@@ -524,23 +516,21 @@ fail0:
return pci_rc;
}
static void __exit i82875p_exit(void)
{
debugf3("%s()\n", __func__);
pci_unregister_driver(&i82875p_driver);
if (!i82875p_registered) {
i82875p_remove_one(mci_pdev);
pci_dev_put(mci_pdev);
}
}
module_init(i82875p_init);
module_exit(i82875p_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Linux Networx (http://lnxi.com) Thayne Harbaugh");
MODULE_DESCRIPTION("MC support for Intel 82875 memory hub controllers");
......@@ -18,19 +18,16 @@
#include <linux/config.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/pci.h>
#include <linux/pci_ids.h>
#include <linux/slab.h>
#include "edac_mc.h"
#define r82600_printk(level, fmt, arg...) \
edac_printk(level, "r82600", fmt, ##arg)
edac_printk(level, "r82600", fmt, ##arg)
#define r82600_mc_printk(mci, level, fmt, arg...) \
edac_mc_chipset_printk(mci, level, "r82600", fmt, ##arg)
edac_mc_chipset_printk(mci, level, "r82600", fmt, ##arg)
/* Radisys say "The 82600 integrates a main memory SDRAM controller that
* supports up to four banks of memory. The four banks can support a mix of
......@@ -132,10 +129,8 @@ struct r82600_error_info {
u32 eapr;
};
static unsigned int disable_hardware_scrub = 0;
static void r82600_get_error_info (struct mem_ctl_info *mci,
struct r82600_error_info *info)
{
......@@ -144,17 +139,16 @@ static void r82600_get_error_info (struct mem_ctl_info *mci,
if (info->eapr & BIT(0))
/* Clear error to allow next error to be reported [p.62] */
pci_write_bits32(mci->pdev, R82600_EAP,
((u32) BIT(0) & (u32) BIT(1)),
((u32) BIT(0) & (u32) BIT(1)));
((u32) BIT(0) & (u32) BIT(1)),
((u32) BIT(0) & (u32) BIT(1)));
if (info->eapr & BIT(1))
/* Clear error to allow next error to be reported [p.62] */
pci_write_bits32(mci->pdev, R82600_EAP,
((u32) BIT(0) & (u32) BIT(1)),
((u32) BIT(0) & (u32) BIT(1)));
((u32) BIT(0) & (u32) BIT(1)),
((u32) BIT(0) & (u32) BIT(1)));
}
static int r82600_process_error_info (struct mem_ctl_info *mci,
struct r82600_error_info *info, int handle_errors)
{
......@@ -173,26 +167,25 @@ static int r82600_process_error_info (struct mem_ctl_info *mci,
* granularity (upper 19 bits only) */
page = eapaddr >> PAGE_SHIFT;
if (info->eapr & BIT(0)) { /* CE? */
if (info->eapr & BIT(0)) { /* CE? */
error_found = 1;
if (handle_errors)
edac_mc_handle_ce(
mci, page, 0, /* not avail */
syndrome,
edac_mc_find_csrow_by_page(mci, page),
0, /* channel */
mci->ctl_name);
edac_mc_handle_ce(mci, page, 0, /* not avail */
syndrome,
edac_mc_find_csrow_by_page(mci, page),
0, /* channel */
mci->ctl_name);
}
if (info->eapr & BIT(1)) { /* UE? */
if (info->eapr & BIT(1)) { /* UE? */
error_found = 1;
if (handle_errors)
/* 82600 doesn't give enough info */
edac_mc_handle_ue(mci, page, 0,
edac_mc_find_csrow_by_page(mci, page),
mci->ctl_name);
edac_mc_find_csrow_by_page(mci, page),
mci->ctl_name);
}
return error_found;
......@@ -222,21 +215,15 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
struct r82600_error_info discard;
debugf0("%s()\n", __func__);
pci_read_config_byte(pdev, R82600_DRAMC, &dramcr);
pci_read_config_dword(pdev, R82600_EAP, &eapr);
ecc_on = dramcr & BIT(5);
reg_sdram = dramcr & BIT(4);
scrub_disabled = eapr & BIT(31);
sdram_refresh_rate = dramcr & (BIT(0) | BIT(1));
debugf2("%s(): sdram refresh rate = %#0x\n", __func__,
sdram_refresh_rate);
debugf2("%s(): DRAMC register = %#0x\n", __func__, dramcr);
mci = edac_mc_alloc(0, R82600_NR_CSROWS, R82600_NR_CHANS);
if (mci == NULL) {
......@@ -245,19 +232,19 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
}
debugf0("%s(): mci = %p\n", __func__, mci);
mci->pdev = pdev;
mci->mtype_cap = MEM_FLAG_RDDR | MEM_FLAG_DDR;
mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
/* FIXME try to work out if the chip leads have been *
* used for COM2 instead on this board? [MA6?] MAYBE: */
/* FIXME try to work out if the chip leads have been used for COM2
* instead on this board? [MA6?] MAYBE:
*/
/* On the R82600, the pins for memory bits 72:65 - i.e. the *
* EC bits are shared with the pins for COM2 (!), so if COM2 *
* is enabled, we assume COM2 is wired up, and thus no EDAC *
* is possible. */
mci->edac_cap = EDAC_FLAG_NONE | EDAC_FLAG_EC | EDAC_FLAG_SECDED;
if (ecc_on) {
if (scrub_disabled)
debugf3("%s(): mci = %p - Scrubbing disabled! EAP: "
......@@ -295,7 +282,6 @@ static int r82600_probe1(struct pci_dev *pdev, int dev_idx)
continue;
row_base = row_high_limit_last;
csrow->first_page = row_base >> PAGE_SHIFT;
csrow->last_page = (row_high_limit >> PAGE_SHIFT) - 1;
csrow->nr_pages = csrow->last_page - csrow->first_page + 1;
......@@ -338,7 +324,7 @@ fail:
/* returns count (>= 0), or negative on error */
static int __devinit r82600_init_one(struct pci_dev *pdev,
const struct pci_device_id *ent)
const struct pci_device_id *ent)
{
debugf0("%s()\n", __func__);
......@@ -346,7 +332,6 @@ static int __devinit r82600_init_one(struct pci_dev *pdev,
return r82600_probe1(pdev, ent->driver_data);
}
static void __devexit r82600_remove_one(struct pci_dev *pdev)
{
struct mem_ctl_info *mci;
......@@ -359,15 +344,17 @@ static void __devexit r82600_remove_one(struct pci_dev *pdev)
edac_mc_free(mci);
}
static const struct pci_device_id r82600_pci_tbl[] __devinitdata = {
{PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID)},
{0,} /* 0 terminated list. */
{
PCI_DEVICE(PCI_VENDOR_ID_RADISYS, R82600_BRIDGE_ID)
},
{
0,
} /* 0 terminated list. */
};
MODULE_DEVICE_TABLE(pci, r82600_pci_tbl);
static struct pci_driver r82600_driver = {
.name = EDAC_MOD_STR,
.probe = r82600_init_one,
......@@ -375,26 +362,22 @@ static struct pci_driver r82600_driver = {
.id_table = r82600_pci_tbl,
};
static int __init r82600_init(void)
{
return pci_register_driver(&r82600_driver);
}
static void __exit r82600_exit(void)
{
pci_unregister_driver(&r82600_driver);
}
module_init(r82600_init);
module_exit(r82600_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Tim Small <tim@buttersideup.com> - WPAD Ltd. "
"on behalf of EADS Astrium");
"on behalf of EADS Astrium");
MODULE_DESCRIPTION("MC support for Radisys 82600 memory controllers");
module_param(disable_hardware_scrub, bool, 0644);
......
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