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edac: i5100 clean controller to channel terms 

The i5100 driver uses the word controller instead of channel in a lot of
places, this is simply a cleanup of the patch.

Signed-off-by: Nils Carlson <nils.carlson@ludd.ltu.se>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Nils Carlson 2009-12-15 16:47:40 -08:00 committed by Linus Torvalds
parent 417e315247
commit b18dfd05f9
1 changed files with 55 additions and 55 deletions
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110
drivers/edac/i5100_edac.c
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@ -265,42 +265,42 @@ static inline u32 i5100_recmemb_ras(u32 a)
} }
/* some generic limits */ /* some generic limits */
#define I5100_MAX_RANKS_PER_CTLR 6 #define I5100_MAX_RANKS_PER_CHAN 6
#define I5100_MAX_CTLRS 2 #define I5100_CHANNELS 2
#define I5100_MAX_RANKS_PER_DIMM 4 #define I5100_MAX_RANKS_PER_DIMM 4
#define I5100_DIMM_ADDR_LINES (6 - 3) /* 64 bits / 8 bits per byte */ #define I5100_DIMM_ADDR_LINES (6 - 3) /* 64 bits / 8 bits per byte */
#define I5100_MAX_DIMM_SLOTS_PER_CTLR 4 #define I5100_MAX_DIMM_SLOTS_PER_CHAN 4
#define I5100_MAX_RANK_INTERLEAVE 4 #define I5100_MAX_RANK_INTERLEAVE 4
#define I5100_MAX_DMIRS 5 #define I5100_MAX_DMIRS 5
struct i5100_priv { struct i5100_priv {
/* ranks on each dimm -- 0 maps to not present -- obtained via SPD */ /* ranks on each dimm -- 0 maps to not present -- obtained via SPD */
int dimm_numrank[I5100_MAX_CTLRS][I5100_MAX_DIMM_SLOTS_PER_CTLR]; int dimm_numrank[I5100_CHANNELS][I5100_MAX_DIMM_SLOTS_PER_CHAN];
/* /*
* mainboard chip select map -- maps i5100 chip selects to * mainboard chip select map -- maps i5100 chip selects to
* DIMM slot chip selects. In the case of only 4 ranks per * DIMM slot chip selects. In the case of only 4 ranks per
* controller, the mapping is fairly obvious but not unique. * channel, the mapping is fairly obvious but not unique.
* we map -1 -> NC and assume both controllers use the same * we map -1 -> NC and assume both channels use the same
* map... * map...
* *
*/ */
int dimm_csmap[I5100_MAX_DIMM_SLOTS_PER_CTLR][I5100_MAX_RANKS_PER_DIMM]; int dimm_csmap[I5100_MAX_DIMM_SLOTS_PER_CHAN][I5100_MAX_RANKS_PER_DIMM];
/* memory interleave range */ /* memory interleave range */
struct { struct {
u64 limit; u64 limit;
unsigned way[2]; unsigned way[2];
} mir[I5100_MAX_CTLRS]; } mir[I5100_CHANNELS];
/* adjusted memory interleave range register */ /* adjusted memory interleave range register */
unsigned amir[I5100_MAX_CTLRS]; unsigned amir[I5100_CHANNELS];
/* dimm interleave range */ /* dimm interleave range */
struct { struct {
unsigned rank[I5100_MAX_RANK_INTERLEAVE]; unsigned rank[I5100_MAX_RANK_INTERLEAVE];
u64 limit; u64 limit;
} dmir[I5100_MAX_CTLRS][I5100_MAX_DMIRS]; } dmir[I5100_CHANNELS][I5100_MAX_DMIRS];
/* memory technology registers... */ /* memory technology registers... */
struct { struct {
@ -310,30 +310,30 @@ struct i5100_priv {
unsigned numbank; /* 2 or 3 lines */ unsigned numbank; /* 2 or 3 lines */
unsigned numrow; /* 13 .. 16 lines */ unsigned numrow; /* 13 .. 16 lines */
unsigned numcol; /* 11 .. 12 lines */ unsigned numcol; /* 11 .. 12 lines */
} mtr[I5100_MAX_CTLRS][I5100_MAX_RANKS_PER_CTLR]; } mtr[I5100_CHANNELS][I5100_MAX_RANKS_PER_CHAN];
u64 tolm; /* top of low memory in bytes */ u64 tolm; /* top of low memory in bytes */
unsigned ranksperctlr; /* number of ranks per controller */ unsigned ranksperchan; /* number of ranks per channel */
struct pci_dev *mc; /* device 16 func 1 */ struct pci_dev *mc; /* device 16 func 1 */
struct pci_dev *ch0mm; /* device 21 func 0 */ struct pci_dev *ch0mm; /* device 21 func 0 */
struct pci_dev *ch1mm; /* device 22 func 0 */ struct pci_dev *ch1mm; /* device 22 func 0 */
}; };
/* map a rank/ctlr to a slot number on the mainboard */ /* map a rank/chan to a slot number on the mainboard */
static int i5100_rank_to_slot(const struct mem_ctl_info *mci, static int i5100_rank_to_slot(const struct mem_ctl_info *mci,
int ctlr, int rank) int chan, int rank)
{ {
const struct i5100_priv *priv = mci->pvt_info; const struct i5100_priv *priv = mci->pvt_info;
int i; int i;
for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CTLR; i++) { for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CHAN; i++) {
int j; int j;
const int numrank = priv->dimm_numrank[ctlr][i]; const int numrank = priv->dimm_numrank[chan][i];
for (j = 0; j < numrank; j++) for (j = 0; j < numrank; j++)
if (priv->dimm_csmap[i][j] == rank) if (priv->dimm_csmap[i][j] == rank)
return i * 2 + ctlr; return i * 2 + chan;
} }
return -1; return -1;
@ -374,32 +374,32 @@ static const char *i5100_err_msg(unsigned err)
return "none"; return "none";
} }
/* convert csrow index into a rank (per controller -- 0..5) */ /* convert csrow index into a rank (per channel -- 0..5) */
static int i5100_csrow_to_rank(const struct mem_ctl_info *mci, int csrow) static int i5100_csrow_to_rank(const struct mem_ctl_info *mci, int csrow)
{ {
const struct i5100_priv *priv = mci->pvt_info; const struct i5100_priv *priv = mci->pvt_info;
return csrow % priv->ranksperctlr; return csrow % priv->ranksperchan;
} }
/* convert csrow index into a controller (0..1) */ /* convert csrow index into a channel (0..1) */
static int i5100_csrow_to_cntlr(const struct mem_ctl_info *mci, int csrow) static int i5100_csrow_to_chan(const struct mem_ctl_info *mci, int csrow)
{ {
const struct i5100_priv *priv = mci->pvt_info; const struct i5100_priv *priv = mci->pvt_info;
return csrow / priv->ranksperctlr; return csrow / priv->ranksperchan;
} }
static unsigned i5100_rank_to_csrow(const struct mem_ctl_info *mci, static unsigned i5100_rank_to_csrow(const struct mem_ctl_info *mci,
int ctlr, int rank) int chan, int rank)
{ {
const struct i5100_priv *priv = mci->pvt_info; const struct i5100_priv *priv = mci->pvt_info;
return ctlr * priv->ranksperctlr + rank; return chan * priv->ranksperchan + rank;
} }
static void i5100_handle_ce(struct mem_ctl_info *mci, static void i5100_handle_ce(struct mem_ctl_info *mci,
int ctlr, int chan,
unsigned bank, unsigned bank,
unsigned rank, unsigned rank,
unsigned long syndrome, unsigned long syndrome,
@ -407,12 +407,12 @@ static void i5100_handle_ce(struct mem_ctl_info *mci,
unsigned ras, unsigned ras,
const char *msg) const char *msg)
{ {
const int csrow = i5100_rank_to_csrow(mci, ctlr, rank); const int csrow = i5100_rank_to_csrow(mci, chan, rank);
printk(KERN_ERR printk(KERN_ERR
"CE ctlr %d, bank %u, rank %u, syndrome 0x%lx, " "CE chan %d, bank %u, rank %u, syndrome 0x%lx, "
"cas %u, ras %u, csrow %u, label \"%s\": %s\n", "cas %u, ras %u, csrow %u, label \"%s\": %s\n",
ctlr, bank, rank, syndrome, cas, ras, chan, bank, rank, syndrome, cas, ras,
csrow, mci->csrows[csrow].channels[0].label, msg); csrow, mci->csrows[csrow].channels[0].label, msg);
mci->ce_count++; mci->ce_count++;
@ -421,7 +421,7 @@ static void i5100_handle_ce(struct mem_ctl_info *mci,
} }
static void i5100_handle_ue(struct mem_ctl_info *mci, static void i5100_handle_ue(struct mem_ctl_info *mci,
int ctlr, int chan,
unsigned bank, unsigned bank,
unsigned rank, unsigned rank,
unsigned long syndrome, unsigned long syndrome,
@ -429,23 +429,23 @@ static void i5100_handle_ue(struct mem_ctl_info *mci,
unsigned ras, unsigned ras,
const char *msg) const char *msg)
{ {
const int csrow = i5100_rank_to_csrow(mci, ctlr, rank); const int csrow = i5100_rank_to_csrow(mci, chan, rank);
printk(KERN_ERR printk(KERN_ERR
"UE ctlr %d, bank %u, rank %u, syndrome 0x%lx, " "UE chan %d, bank %u, rank %u, syndrome 0x%lx, "
"cas %u, ras %u, csrow %u, label \"%s\": %s\n", "cas %u, ras %u, csrow %u, label \"%s\": %s\n",
ctlr, bank, rank, syndrome, cas, ras, chan, bank, rank, syndrome, cas, ras,
csrow, mci->csrows[csrow].channels[0].label, msg); csrow, mci->csrows[csrow].channels[0].label, msg);
mci->ue_count++; mci->ue_count++;
mci->csrows[csrow].ue_count++; mci->csrows[csrow].ue_count++;
} }
static void i5100_read_log(struct mem_ctl_info *mci, int ctlr, static void i5100_read_log(struct mem_ctl_info *mci, int chan,
u32 ferr, u32 nerr) u32 ferr, u32 nerr)
{ {
struct i5100_priv *priv = mci->pvt_info; struct i5100_priv *priv = mci->pvt_info;
struct pci_dev *pdev = (ctlr) ? priv->ch1mm : priv->ch0mm; struct pci_dev *pdev = (chan) ? priv->ch1mm : priv->ch0mm;
u32 dw; u32 dw;
u32 dw2; u32 dw2;
unsigned syndrome = 0; unsigned syndrome = 0;
@ -484,7 +484,7 @@ static void i5100_read_log(struct mem_ctl_info *mci, int ctlr,
else else
msg = i5100_err_msg(nerr); msg = i5100_err_msg(nerr);
i5100_handle_ce(mci, ctlr, bank, rank, syndrome, cas, ras, msg); i5100_handle_ce(mci, chan, bank, rank, syndrome, cas, ras, msg);
} }
if (i5100_validlog_nrecmemvalid(dw)) { if (i5100_validlog_nrecmemvalid(dw)) {
@ -506,7 +506,7 @@ static void i5100_read_log(struct mem_ctl_info *mci, int ctlr,
else else
msg = i5100_err_msg(nerr); msg = i5100_err_msg(nerr);
i5100_handle_ue(mci, ctlr, bank, rank, syndrome, cas, ras, msg); i5100_handle_ue(mci, chan, bank, rank, syndrome, cas, ras, msg);
} }
pci_write_config_dword(pdev, I5100_VALIDLOG, dw); pci_write_config_dword(pdev, I5100_VALIDLOG, dw);
@ -557,19 +557,19 @@ static unsigned long __devinit i5100_npages(struct mem_ctl_info *mci,
int csrow) int csrow)
{ {
struct i5100_priv *priv = mci->pvt_info; struct i5100_priv *priv = mci->pvt_info;
const unsigned ctlr_rank = i5100_csrow_to_rank(mci, csrow); const unsigned chan_rank = i5100_csrow_to_rank(mci, csrow);
const unsigned ctlr = i5100_csrow_to_cntlr(mci, csrow); const unsigned chan = i5100_csrow_to_chan(mci, csrow);
unsigned addr_lines; unsigned addr_lines;
/* dimm present? */ /* dimm present? */
if (!priv->mtr[ctlr][ctlr_rank].present) if (!priv->mtr[chan][chan_rank].present)
return 0ULL; return 0ULL;
addr_lines = addr_lines =
I5100_DIMM_ADDR_LINES + I5100_DIMM_ADDR_LINES +
priv->mtr[ctlr][ctlr_rank].numcol + priv->mtr[chan][chan_rank].numcol +
priv->mtr[ctlr][ctlr_rank].numrow + priv->mtr[chan][chan_rank].numrow +
priv->mtr[ctlr][ctlr_rank].numbank; priv->mtr[chan][chan_rank].numbank;
return (unsigned long) return (unsigned long)
((unsigned long long) (1ULL << addr_lines) / PAGE_SIZE); ((unsigned long long) (1ULL << addr_lines) / PAGE_SIZE);
@ -581,11 +581,11 @@ static void __devinit i5100_init_mtr(struct mem_ctl_info *mci)
struct pci_dev *mms[2] = { priv->ch0mm, priv->ch1mm }; struct pci_dev *mms[2] = { priv->ch0mm, priv->ch1mm };
int i; int i;
for (i = 0; i < I5100_MAX_CTLRS; i++) { for (i = 0; i < I5100_CHANNELS; i++) {
int j; int j;
struct pci_dev *pdev = mms[i]; struct pci_dev *pdev = mms[i];
for (j = 0; j < I5100_MAX_RANKS_PER_CTLR; j++) { for (j = 0; j < I5100_MAX_RANKS_PER_CHAN; j++) {
const unsigned addr = const unsigned addr =
(j < 4) ? I5100_MTR_0 + j * 2 : (j < 4) ? I5100_MTR_0 + j * 2 :
I5100_MTR_4 + (j - 4) * 2; I5100_MTR_4 + (j - 4) * 2;
@ -644,7 +644,7 @@ static int i5100_read_spd_byte(const struct mem_ctl_info *mci,
* fill dimm chip select map * fill dimm chip select map
* *
* FIXME: * FIXME:
* o only valid for 4 ranks per controller * o only valid for 4 ranks per channel
* o not the only way to may chip selects to dimm slots * o not the only way to may chip selects to dimm slots
* o investigate if there is some way to obtain this map from the bios * o investigate if there is some way to obtain this map from the bios
*/ */
@ -653,9 +653,9 @@ static void __devinit i5100_init_dimm_csmap(struct mem_ctl_info *mci)
struct i5100_priv *priv = mci->pvt_info; struct i5100_priv *priv = mci->pvt_info;
int i; int i;
WARN_ON(priv->ranksperctlr != 4); WARN_ON(priv->ranksperchan != 4);
for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CTLR; i++) { for (i = 0; i < I5100_MAX_DIMM_SLOTS_PER_CHAN; i++) {
int j; int j;
for (j = 0; j < I5100_MAX_RANKS_PER_DIMM; j++) for (j = 0; j < I5100_MAX_RANKS_PER_DIMM; j++)
@ -677,10 +677,10 @@ static void __devinit i5100_init_dimm_layout(struct pci_dev *pdev,
struct i5100_priv *priv = mci->pvt_info; struct i5100_priv *priv = mci->pvt_info;
int i; int i;
for (i = 0; i < I5100_MAX_CTLRS; i++) { for (i = 0; i < I5100_CHANNELS; i++) {
int j; int j;
for (j = 0; j < I5100_MAX_DIMM_SLOTS_PER_CTLR; j++) { for (j = 0; j < I5100_MAX_DIMM_SLOTS_PER_CHAN; j++) {
u8 rank; u8 rank;
if (i5100_read_spd_byte(mci, i, j, 5, &rank) < 0) if (i5100_read_spd_byte(mci, i, j, 5, &rank) < 0)
@ -720,7 +720,7 @@ static void __devinit i5100_init_interleaving(struct pci_dev *pdev,
pci_read_config_word(pdev, I5100_AMIR_1, &w); pci_read_config_word(pdev, I5100_AMIR_1, &w);
priv->amir[1] = w; priv->amir[1] = w;
for (i = 0; i < I5100_MAX_CTLRS; i++) { for (i = 0; i < I5100_CHANNELS; i++) {
int j; int j;
for (j = 0; j < 5; j++) { for (j = 0; j < 5; j++) {
@ -747,7 +747,7 @@ static void __devinit i5100_init_csrows(struct mem_ctl_info *mci)
for (i = 0; i < mci->nr_csrows; i++) { for (i = 0; i < mci->nr_csrows; i++) {
const unsigned long npages = i5100_npages(mci, i); const unsigned long npages = i5100_npages(mci, i);
const unsigned cntlr = i5100_csrow_to_cntlr(mci, i); const unsigned chan = i5100_csrow_to_chan(mci, i);
const unsigned rank = i5100_csrow_to_rank(mci, i); const unsigned rank = i5100_csrow_to_rank(mci, i);
if (!npages) if (!npages)
@ -765,7 +765,7 @@ static void __devinit i5100_init_csrows(struct mem_ctl_info *mci)
mci->csrows[i].grain = 32; mci->csrows[i].grain = 32;
mci->csrows[i].csrow_idx = i; mci->csrows[i].csrow_idx = i;
mci->csrows[i].dtype = mci->csrows[i].dtype =
(priv->mtr[cntlr][rank].width == 4) ? DEV_X4 : DEV_X8; (priv->mtr[chan][rank].width == 4) ? DEV_X4 : DEV_X8;
mci->csrows[i].ue_count = 0; mci->csrows[i].ue_count = 0;
mci->csrows[i].ce_count = 0; mci->csrows[i].ce_count = 0;
mci->csrows[i].mtype = MEM_RDDR2; mci->csrows[i].mtype = MEM_RDDR2;
@ -777,7 +777,7 @@ static void __devinit i5100_init_csrows(struct mem_ctl_info *mci)
mci->csrows[i].channels[0].csrow = mci->csrows + i; mci->csrows[i].channels[0].csrow = mci->csrows + i;
snprintf(mci->csrows[i].channels[0].label, snprintf(mci->csrows[i].channels[0].label,
sizeof(mci->csrows[i].channels[0].label), sizeof(mci->csrows[i].channels[0].label),
"DIMM%u", i5100_rank_to_slot(mci, cntlr, rank)); "DIMM%u", i5100_rank_to_slot(mci, chan, rank));
total_pages += npages; total_pages += npages;
} }
@ -816,7 +816,7 @@ static int __devinit i5100_init_one(struct pci_dev *pdev,
ranksperch = !!(dw & (1 << 8)) * 2 + 4; ranksperch = !!(dw & (1 << 8)) * 2 + 4;
if (ranksperch != 4) { if (ranksperch != 4) {
/* FIXME: get 6 ranks / controller to work - need hw... */ /* FIXME: get 6 ranks / channel to work - need hw... */
printk(KERN_INFO "i5100_edac: unsupported configuration.\n"); printk(KERN_INFO "i5100_edac: unsupported configuration.\n");
ret = -ENODEV; ret = -ENODEV;
goto bail_pdev; goto bail_pdev;
@ -864,7 +864,7 @@ static int __devinit i5100_init_one(struct pci_dev *pdev,
mci->dev = &pdev->dev; mci->dev = &pdev->dev;
priv = mci->pvt_info; priv = mci->pvt_info;
priv->ranksperctlr = ranksperch; priv->ranksperchan = ranksperch;
priv->mc = pdev; priv->mc = pdev;
priv->ch0mm = ch0mm; priv->ch0mm = ch0mm;
priv->ch1mm = ch1mm; priv->ch1mm = ch1mm;