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yaml
---
r: 31410
b: refs/heads/master
c: 1318952
h: refs/heads/master
v: v3
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Doug Thompson authored and Linus Torvalds committed Jun 30, 2006
1 parent 86a3e10 commit c5a72e1
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Showing 7 changed files with 519 additions and 445 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 2d7bbb91c8df26c60d223205a087507430024177
refs/heads/master: 1318952514d5651c453d89989595a9df3b37267b
74 changes: 38 additions & 36 deletions trunk/drivers/edac/amd76x_edac.c
Original file line number Diff line number Diff line change
Expand Up @@ -182,6 +182,38 @@ static void amd76x_check(struct mem_ctl_info *mci)
amd76x_process_error_info(mci, &info, 1);
}

static void amd76x_init_csrows(struct mem_ctl_info *mci, struct pci_dev *pdev,
enum edac_type edac_mode)
{
struct csrow_info *csrow;
u32 mba, mba_base, mba_mask, dms;
int index;

for (index = 0; index < mci->nr_csrows; index++) {
csrow = &mci->csrows[index];

/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(pdev,
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(pdev, AMD76X_DRAM_MODE_STATUS, &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;
csrow->page_mask = mba_mask >> PAGE_SHIFT;
csrow->grain = csrow->nr_pages << PAGE_SHIFT;
csrow->mtype = MEM_RDDR;
csrow->dtype = ((dms >> index) & 0x1) ? DEV_X4 : DEV_UNKNOWN;
csrow->edac_mode = edac_mode;
}
}

/**
* amd76x_probe1 - Perform set up for detected device
* @pdev; PCI device detected
Expand All @@ -193,15 +225,13 @@ static void amd76x_check(struct mem_ctl_info *mci)
*/
static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
{
int rc = -ENODEV;
int index;
struct mem_ctl_info *mci = NULL;
enum edac_type ems_modes[] = {
static const enum edac_type ems_modes[] = {
EDAC_NONE,
EDAC_EC,
EDAC_SECDED,
EDAC_SECDED
};
struct mem_ctl_info *mci = NULL;
u32 ems;
u32 ems_mode;
struct amd76x_error_info discard;
Expand All @@ -212,8 +242,7 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
mci = edac_mc_alloc(0, AMD76X_NR_CSROWS, AMD76X_NR_CHANS);

if (mci == NULL) {
rc = -ENOMEM;
goto fail;
return -ENOMEM;
}

debugf0("%s(): mci = %p\n", __func__, mci);
Expand All @@ -228,33 +257,7 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
mci->edac_check = amd76x_check;
mci->ctl_page_to_phys = NULL;

for (index = 0; index < mci->nr_csrows; index++) {
struct csrow_info *csrow = &mci->csrows[index];
u32 mba;
u32 mba_base;
u32 mba_mask;
u32 dms;

/* find the DRAM Chip Select Base address and mask */
pci_read_config_dword(pdev,
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(pdev, AMD76X_DRAM_MODE_STATUS, &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;
csrow->page_mask = mba_mask >> PAGE_SHIFT;
csrow->grain = csrow->nr_pages << PAGE_SHIFT;
csrow->mtype = MEM_RDDR;
csrow->dtype = ((dms >> index) & 0x1) ? DEV_X4 : DEV_UNKNOWN;
csrow->edac_mode = ems_modes[ems_mode];
}

amd76x_init_csrows(mci, pdev, ems_modes[ems_mode]);
amd76x_get_error_info(mci, &discard); /* clear counters */

/* Here we assume that we will never see multiple instances of this
Expand All @@ -270,9 +273,8 @@ static int amd76x_probe1(struct pci_dev *pdev, int dev_idx)
return 0;

fail:
if (mci != NULL)
edac_mc_free(mci);
return rc;
edac_mc_free(mci);
return -ENODEV;
}

/* returns count (>= 0), or negative on error */
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