linux-stable/drivers/edac
Yazen Ghannam e53a3b267f EDAC/amd64: Find Chip Select memory size using Address Mask
Chip Select memory size reporting on AMD Family 17h was recently fixed
in order to account for interleaving. However, the current method is not
robust.

The Chip Select Address Mask can be used to find the memory size. There
are a couple of cases.

1) For single-rank and dual-rank non-interleaved, use the address mask
plus 1 as the size.

2) For dual-rank interleaved, do #1 but "de-interleave" the address mask
first.

Always "de-interleave" the address mask in order to simplify the code
flow. Bit mask manipulation is necessary to check for interleaving, so
just go ahead and do the de-interleaving. In the non-interleaved case,
the original and de-interleaved address masks will be the same.

To de-interleave the mask, count the number of zero bits in the middle
of the mask and swap them with the most significant bits.

For example,
Original=0xFFFF9FE, De-interleaved=0x3FFFFFE

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: "linux-edac@vger.kernel.org" <linux-edac@vger.kernel.org>
Cc: James Morse <james.morse@arm.com>
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20190821235938.118710-5-Yazen.Ghannam@amd.com
2019-08-23 07:23:53 +02:00
..
Kconfig EDAC, mellanox: Add ECC support for BlueField DDR4 2019-08-08 12:57:01 -03:00
Makefile EDAC, mellanox: Add ECC support for BlueField DDR4 2019-08-08 12:57:01 -03:00
altera_edac.c EDAC/altera: Use the proper type for the IRQ status bits 2019-08-07 10:37:34 +02:00
altera_edac.h edac: altera: Move Stratix10 SDRAM ECC to peripheral 2019-07-25 14:28:42 -04:00
amd64_edac.c EDAC/amd64: Find Chip Select memory size using Address Mask 2019-08-23 07:23:53 +02:00
amd64_edac.h EDAC/amd64: Support more than two controllers for chip selects handling 2019-08-22 19:08:49 +02:00
amd64_edac_dbg.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amd64_edac_inj.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
amd76x_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
amd8111_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd8111_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd8131_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd8131_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
aspeed_edac.c EDAC/aspeed: Remove set but not used variable 'np' 2019-06-20 11:44:36 -07:00
bluefield_edac.c EDAC, mellanox: Add ECC support for BlueField DDR4 2019-08-08 12:57:01 -03:00
cell_edac.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
cpc925_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
debugfs.c EDAC: Make edac_debugfs_create_x*() return void 2019-06-20 11:44:36 -07:00
e7xxx_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
e752x_edac.c EDAC: Fix indentation issues in several EDAC drivers 2018-11-10 16:56:16 +01:00
edac_device.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
edac_device.h edac: move documentation from edac_device to edac_core.h 2016-12-15 08:54:51 -02:00
edac_device_sysfs.c edac: move EDAC device definitions to drivers/edac/edac_device.h 2016-12-15 08:54:51 -02:00
edac_mc.c EDAC/mc: Cleanup _edac_mc_free() code 2019-08-14 18:27:00 +02:00
edac_mc.h EDAC: Add helper which returns the loaded platform driver 2017-09-25 12:55:59 +02:00
edac_mc_sysfs.c EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec 2019-06-27 10:24:47 -07:00
edac_module.c treewide: Fix function prototypes for module_param_call() 2017-10-31 15:30:37 +01:00
edac_module.h EDAC: Fix global-out-of-bounds write when setting edac_mc_poll_msec 2019-06-27 10:24:47 -07:00
edac_pci.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
edac_pci.h edac: move documentation from edac_pci*.c to edac_pci.h 2016-12-15 08:54:51 -02:00
edac_pci_sysfs.c edac: move documentation from edac_pci*.c to edac_pci.h 2016-12-15 08:54:51 -02:00
fsl_ddr_edac.c EDAC, fsl_ddr: Add LS1021A to the list of supported hardware 2018-12-19 11:57:45 +01:00
fsl_ddr_edac.h EDAC, fsl_ddr: Add LS1021A to the list of supported hardware 2018-12-19 11:57:45 +01:00
ghes_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 172 2019-05-30 11:26:39 -07:00
highbank_l2_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
highbank_mc_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
i7core_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 172 2019-05-30 11:26:39 -07:00
i10nm_base.c EDAC, skx, i10nm: Fix source ID register offset 2019-06-26 10:07:27 -07:00
i3000_edac.c EDAC: Fix indentation issues in several EDAC drivers 2018-11-10 16:56:16 +01:00
i3200_edac.c EDAC: Correct DIMM capacity unit symbol 2018-09-22 18:18:57 +02:00
i5000_edac.c EDAC, i5000: Remove set but not used local variables 2018-12-11 14:53:49 +01:00
i5100_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
i5400_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
i7300_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 172 2019-05-30 11:26:39 -07:00
i82443bxgx_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
i82860_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
i82875p_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
i82975x_edac.c EDAC, i82975x: Fix spelling mistake "reserverd" -> "reserved" 2018-11-20 17:46:01 +01:00
ie31200_edac.c EDAC/ie31200: Reformat PCI device table 2019-06-20 11:44:36 -07:00
layerscape_edac.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
mce_amd.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
mce_amd.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mpc85xx_edac.c EDAC, mpc85xx: Add T2080 l2-cache support 2017-02-03 10:36:35 +01:00
mpc85xx_edac.h EDAC, fsl-ddr: Separate FSL DDR driver from MPC85xx 2016-09-01 10:28:00 +02:00
mv64x60_edac.c EDAC, mv64x60: Fix an error handling path 2018-01-09 20:14:23 +01:00
mv64x60_edac.h
octeon_edac-l2c.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
octeon_edac-lmc.c EDAC, octeon: Fix an uninitialized variable warning 2017-11-27 11:57:26 +01:00
octeon_edac-pc.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
octeon_edac-pci.c edac: rename edac_core.h to edac_mc.h 2016-12-15 08:54:51 -02:00
pasemi_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
pnd2_edac.c EDAC, pnd2: Fix ioremap() size in dnv_rd_reg() 2019-08-09 10:19:07 -07:00
pnd2_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
ppc4xx_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
ppc4xx_edac.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441 2019-06-05 17:37:17 +02:00
qcom_edac.c EDAC, qcom_edac: Remove irq_handled local variable 2018-11-06 12:03:16 +01:00
r82600_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
sb_edac.c EDAC/sb_edac: Remove redundant update of tad_base 2019-06-20 11:44:36 -07:00
sifive_edac.c EDAC/sifive: Add EDAC platform driver for SiFive SoCs 2019-06-20 11:44:36 -07:00
skx_base.c EDAC, skx, i10nm: Fix source ID register offset 2019-06-26 10:07:27 -07:00
skx_common.c EDAC, skx, i10nm: Fix source ID register offset 2019-06-26 10:07:27 -07:00
skx_common.h EDAC, skx, i10nm: Fix source ID register offset 2019-06-26 10:07:27 -07:00
synopsys_edac.c EDAC, synopsys: Add Error Injection support for ZynqMP DDR controller 2018-11-06 10:38:27 +01:00
thunderx_edac.c EDAC, thunderx: Fix memory leak in thunderx_l2c_threaded_isr() 2018-10-13 13:58:06 +02:00
ti_edac.c EDAC, ti: Add support for TI keystone and DRA7xx EDAC 2017-11-27 13:51:19 +01:00
wq.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
x38_edac.c EDAC: Get rid of mci->mod_ver 2017-07-17 13:42:48 +02:00
xgene_edac.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 13 2019-05-21 11:28:45 +02:00