From 1318952514d5651c453d89989595a9df3b37267b Mon Sep 17 00:00:00 2001 From: Doug Thompson Date: Fri, 30 Jun 2006 01:56:08 -0700 Subject: [PATCH] EDAC: probe1 cleanup 1-of-2 - Add lower-level functions that handle various parts of the initialization done by the xxx_probe1() functions. Some of the xxx_probe1() functions are much too long and complicated (see "Chapter 5: Functions" in Documentation/CodingStyle). - Cleanup of probe1() functions in EDAC Signed-off-by: Doug Thompson Cc: Alan Cox Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/edac/amd76x_edac.c | 74 ++++++++++++++++++++++++---------------------- 1 file changed, 38 insertions(+), 36 deletions(-) (limited to 'drivers/edac/amd76x_edac.c') diff --git a/drivers/edac/amd76x_edac.c b/drivers/edac/amd76x_edac.c index 303cb500b377..702141c5501b 100644 --- a/drivers/edac/amd76x_edac.c +++ b/drivers/edac/amd76x_edac.c @@ -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 @@ -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; @@ -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); @@ -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 @@ -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 */ -- cgit v1.2.2