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Fix i7300_edac size report on single DIMM mode 

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2013-03-14 07:53:50 -03:00
parent f032373d45
commit a707d2a493
2 changed files with 121 additions and 3 deletions
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108
i7300_edac_single_mode_fixup.patch Normal file
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@ -0,0 +1,108 @@
commit 8ed5b5d41168a98cffa63e2f6c51c3243e159706
Author: Mauro Carvalho Chehab <mchehab@redhat.com>
Date: Wed Mar 13 22:56:33 2013 -0300
i7300_edac: Fix memory detection in single mode
When the machine is on single mode, only branch 0 channel 0
is valid. However, the code is not honouring it:
[ 1952.639341] EDAC DEBUG: i7300_get_mc_regs: Memory controller operating on single mode
...
[ 1952.639351] EDAC DEBUG: i7300_init_csrows: AMB-present CH0 = 0x1:
[ 1952.639353] EDAC DEBUG: i7300_init_csrows: AMB-present CH1 = 0x0:
[ 1952.639355] EDAC DEBUG: i7300_init_csrows: AMB-present CH2 = 0x0:
[ 1952.639358] EDAC DEBUG: i7300_init_csrows: AMB-present CH3 = 0x0:
...
[ 1952.639360] EDAC DEBUG: decode_mtr: MTR0 CH0: DIMMs are Present (mtr)
[ 1952.639362] EDAC DEBUG: decode_mtr: WIDTH: x8
[ 1952.639363] EDAC DEBUG: decode_mtr: ELECTRICAL THROTTLING is enabled
[ 1952.639364] EDAC DEBUG: decode_mtr: NUMBANK: 4 bank(s)
[ 1952.639366] EDAC DEBUG: decode_mtr: NUMRANK: single
[ 1952.639367] EDAC DEBUG: decode_mtr: NUMROW: 16,384 - 14 rows
[ 1952.639368] EDAC DEBUG: decode_mtr: NUMCOL: 1,024 - 10 columns
[ 1952.639370] EDAC DEBUG: decode_mtr: SIZE: 512 MB
[ 1952.639371] EDAC DEBUG: decode_mtr: ECC code is 8-byte-over-32-byte SECDED+ code
[ 1952.639373] EDAC DEBUG: decode_mtr: Scrub algorithm for x8 is on enhanced mode
[ 1952.639374] EDAC DEBUG: decode_mtr: MTR0 CH1: DIMMs are Present (mtr)
[ 1952.639376] EDAC DEBUG: decode_mtr: WIDTH: x8
[ 1952.639377] EDAC DEBUG: decode_mtr: ELECTRICAL THROTTLING is enabled
[ 1952.639379] EDAC DEBUG: decode_mtr: NUMBANK: 4 bank(s)
[ 1952.639380] EDAC DEBUG: decode_mtr: NUMRANK: single
[ 1952.639381] EDAC DEBUG: decode_mtr: NUMROW: 16,384 - 14 rows
[ 1952.639383] EDAC DEBUG: decode_mtr: NUMCOL: 1,024 - 10 columns
[ 1952.639384] EDAC DEBUG: decode_mtr: SIZE: 512 MB
[ 1952.639385] EDAC DEBUG: decode_mtr: ECC code is 8-byte-over-32-byte SECDED+ code
[ 1952.639387] EDAC DEBUG: decode_mtr: Scrub algorithm for x8 is on enhanced mode
...
[ 1952.639449] EDAC DEBUG: print_dimm_size: channel 0 | channel 1 | channel 2 | channel 3 |
[ 1952.639451] EDAC DEBUG: print_dimm_size: -------------------------------------------------------------
[ 1952.639453] EDAC DEBUG: print_dimm_size: csrow/SLOT 0 512 MB | 512 MB | 0 MB | 0 MB |
[ 1952.639456] EDAC DEBUG: print_dimm_size: csrow/SLOT 1 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639458] EDAC DEBUG: print_dimm_size: csrow/SLOT 2 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639460] EDAC DEBUG: print_dimm_size: csrow/SLOT 3 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639462] EDAC DEBUG: print_dimm_size: csrow/SLOT 4 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639464] EDAC DEBUG: print_dimm_size: csrow/SLOT 5 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639466] EDAC DEBUG: print_dimm_size: csrow/SLOT 6 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639468] EDAC DEBUG: print_dimm_size: csrow/SLOT 7 0 MB | 0 MB | 0 MB | 0 MB |
[ 1952.639470] EDAC DEBUG: print_dimm_size: -------------------------------------------------------------
Instead of detecting a single memory at channel 0, it is showing
twice the memory.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/edac/i7300_edac.c b/drivers/edac/i7300_edac.c
index 087c27b..9004c64 100644
--- a/drivers/edac/i7300_edac.c
+++ b/drivers/edac/i7300_edac.c
@@ -750,15 +750,23 @@ static int i7300_init_csrows(struct mem_ctl_info *mci)
struct i7300_dimm_info *dinfo;
int rc = -ENODEV;
int mtr;
- int ch, branch, slot, channel;
+ int ch, branch, slot, channel, max_channel, max_branch;
struct dimm_info *dimm;
pvt = mci->pvt_info;
edac_dbg(2, "Memory Technology Registers:\n");
+ if (IS_SINGLE_MODE(pvt->mc_settings_a)) {
+ max_branch = 1;
+ max_channel = 1;
+ } else {
+ max_branch = MAX_BRANCHES;
+ max_channel = MAX_CH_PER_BRANCH;
+ }
+
/* Get the AMB present registers for the four channels */
- for (branch = 0; branch < MAX_BRANCHES; branch++) {
+ for (branch = 0; branch < max_branch; branch++) {
/* Read and dump branch 0's MTRs */
channel = to_channel(0, branch);
pci_read_config_word(pvt->pci_dev_2x_0_fbd_branch[branch],
@@ -767,6 +775,9 @@ static int i7300_init_csrows(struct mem_ctl_info *mci)
edac_dbg(2, "\t\tAMB-present CH%d = 0x%x:\n",
channel, pvt->ambpresent[channel]);
+ if (max_channel == 1)
+ continue;
+
channel = to_channel(1, branch);
pci_read_config_word(pvt->pci_dev_2x_0_fbd_branch[branch],
AMBPRESENT_1,
@@ -778,11 +789,11 @@ static int i7300_init_csrows(struct mem_ctl_info *mci)
/* Get the set of MTR[0-7] regs by each branch */
for (slot = 0; slot < MAX_SLOTS; slot++) {
int where = mtr_regs[slot];
- for (branch = 0; branch < MAX_BRANCHES; branch++) {
+ for (branch = 0; branch < max_branch; branch++) {
pci_read_config_word(pvt->pci_dev_2x_0_fbd_branch[branch],
where,
&pvt->mtr[slot][branch]);
- for (ch = 0; ch < MAX_CH_PER_BRANCH; ch++) {
+ for (ch = 0; ch < max_channel; ch++) {
int channel = to_channel(ch, branch);
dimm = EDAC_DIMM_PTR(mci->layers, mci->dimms,

16
kernel.spec
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@ -808,9 +808,12 @@ Patch24110: mac80211-Fix-crash-due-to-un-canceled-work-items.patch
Patch24111: cfg80211-mac80211-disconnect-on-suspend.patch
Patch24112: mac80211_fixes_for_ieee80211_do_stop_while_suspend_v3.8.patch
# AMD64 EDAC reports a wrong dimm count with new API. Fix it
#rhbz 920586
Patch25000: amd64_edac_fix_rank_count.patch
#rhbz 921500
Patch25001: i7300_edac_single_mode_fixup.patch
# END OF PATCH DEFINITIONS
%endif
@ -1542,8 +1545,12 @@ ApplyPatch net-sctp-Validate-parameter-size-for-SCTP_GET_ASSOC_.patch
#rhbz 917353
ApplyPatch backlight_revert.patch -R
#rhbz 920586
ApplyPatch amd64_edac_fix_rank_count.patch
#rhbz 921500
ApplyPatch i7300_edac_single_mode_fixup.patch
#Team Driver update
ApplyPatch team-net-next-update-20130307.patch
@ -2427,6 +2434,9 @@ fi
# ||----w |
# || ||
%changelog
* Thu Mar 14 2013 Mauro Carvalho Chehab <mchehab@redhat.com>
- fix i7300_edac twice-mem-size-report via EDAC API (rhbz 921500)
* Tue Mar 12 2013 Josh Boyer <jwboyer@redhat.com>
- Add patch to fix ieee80211_do_stop (rhbz 892599)
- Add patches to fix cfg80211 issues with suspend (rhbz 856863)
@ -2434,8 +2444,8 @@ fi
- CVE-2013-0913 drm/i915: head writing overflow (rhbz 920471 920529)
- CVE-2013-0914 sa_restorer information leak (rhbz 920499 920510)
* Mon Mar 11 2013 Mauro Carvalho Chehab <mchehab@redhat.com> - 3.8.2-209
- fix amd64_edac twice-mem-size-report on dual-channel machines and new EDAC API
* Mon Mar 11 2013 Mauro Carvalho Chehab <mchehab@redhat.com>
- fix amd64_edac twice-mem-size-report via EDAC API (rhbz 920586)
* Mon Mar 11 2013 Josh Boyer <jwboyer@redhat.com>
- Add patch to fix usb_submit_urb error in uvcvideo (rhbz 879462)