amd64_edac: Remove PCI ECS enabling functions
PCI ECS is being enabled by default since 2.6.26 on AMD so this code is just superfluous now, remove it. Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
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027dbd6f5d
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f1db274e1b
2 changed files with 0 additions and 59 deletions
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@ -1204,31 +1204,6 @@ static int f10_dbam_to_chip_select(struct amd64_pvt *pvt, int cs_mode)
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return dbam_map[cs_mode];
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}
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/* Enable extended configuration access via 0xCF8 feature */
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static void amd64_setup(struct amd64_pvt *pvt)
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{
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u32 reg;
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amd64_read_pci_cfg(pvt->F3, F10_NB_CFG_HIGH, ®);
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pvt->flags.cf8_extcfg = !!(reg & F10_NB_CFG_LOW_ENABLE_EXT_CFG);
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reg |= F10_NB_CFG_LOW_ENABLE_EXT_CFG;
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pci_write_config_dword(pvt->F3, F10_NB_CFG_HIGH, reg);
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}
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/* Restore the extended configuration access via 0xCF8 feature */
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static void amd64_teardown(struct amd64_pvt *pvt)
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{
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u32 reg;
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amd64_read_pci_cfg(pvt->F3, F10_NB_CFG_HIGH, ®);
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reg &= ~F10_NB_CFG_LOW_ENABLE_EXT_CFG;
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if (pvt->flags.cf8_extcfg)
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reg |= F10_NB_CFG_LOW_ENABLE_EXT_CFG;
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pci_write_config_dword(pvt->F3, F10_NB_CFG_HIGH, reg);
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}
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static u64 f10_get_error_address(struct mem_ctl_info *mci,
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struct err_regs *info)
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{
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@ -1251,8 +1226,6 @@ static void f10_read_dram_base_limit(struct amd64_pvt *pvt, int dram)
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/* read the 'raw' DRAM BASE Address register */
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amd64_read_pci_cfg(pvt->F1, low_offset, &low_base);
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/* Read from the ECS data register */
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amd64_read_pci_cfg(pvt->F1, high_offset, &high_base);
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/* Extract parts into separate data entries */
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@ -1271,8 +1244,6 @@ static void f10_read_dram_base_limit(struct amd64_pvt *pvt, int dram)
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/* read the 'raw' LIMIT registers */
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amd64_read_pci_cfg(pvt->F1, low_offset, &low_limit);
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/* Read from the ECS data register for the HIGH portion */
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amd64_read_pci_cfg(pvt->F1, high_offset, &high_limit);
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pvt->dram_DstNode[dram] = (low_limit & 0x7);
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@ -2560,18 +2531,6 @@ static struct amd64_family_type *amd64_per_family_init(struct amd64_pvt *pvt)
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return fam_type;
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}
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/*
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* Init stuff for this DRAM Controller device.
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*
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* Due to a hardware feature on Fam10h CPUs, the Enable Extended Configuration
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* Space feature MUST be enabled on ALL Processors prior to actually reading
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* from the ECS registers. Since the loading of the module can occur on any
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* 'core', and cores don't 'see' all the other processors ECS data when the
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* others are NOT enabled. Our solution is to first enable ECS access in this
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* routine on all processors, gather some data in a amd64_pvt structure and
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* later come back in a finish-setup function to perform that final
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* initialization. See also amd64_init_2nd_stage() for that.
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*/
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static int amd64_probe_one_instance(struct pci_dev *F2)
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{
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struct amd64_pvt *pvt = NULL;
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@ -2602,14 +2561,6 @@ static int amd64_probe_one_instance(struct pci_dev *F2)
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if (err)
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goto err_put;
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/*
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* Key operation here: setup of HW prior to performing ops on it. Some
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* setup is required to access ECS data. After this is performed, the
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* 'teardown' function must be called upon error and normal exit paths.
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*/
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if (boot_cpu_data.x86 >= 0x10)
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amd64_setup(pvt);
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/*
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* Save the pointer to the private data for use in 2nd initialization
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* stage
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@ -2690,9 +2641,6 @@ static int amd64_init_2nd_stage(struct amd64_pvt *pvt)
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amd64_restore_ecc_error_reporting(pvt);
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if (boot_cpu_data.x86 > 0xf)
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amd64_teardown(pvt);
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amd64_free_mc_sibling_devices(pvt);
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kfree(pvts[pvt->mc_node_id]);
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@ -2734,9 +2682,6 @@ static void __devexit amd64_remove_one_instance(struct pci_dev *pdev)
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amd64_restore_ecc_error_reporting(pvt);
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if (boot_cpu_data.x86 > 0xf)
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amd64_teardown(pvt);
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amd64_free_mc_sibling_devices(pvt);
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/* unregister from EDAC MCE */
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@ -335,9 +335,6 @@
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#define K8_SCRCTRL 0x58
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#define F10_NB_CFG_LOW 0x88
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#define F10_NB_CFG_LOW_ENABLE_EXT_CFG BIT(14)
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#define F10_NB_CFG_HIGH 0x8C
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#define F10_ONLINE_SPARE 0xB0
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#define F10_ONLINE_SPARE_SWAPDONE0(x) ((x) & BIT(1))
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@ -476,7 +473,6 @@ struct amd64_pvt {
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/* misc settings */
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struct flags {
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unsigned long cf8_extcfg:1;
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unsigned long nb_mce_enable:1;
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unsigned long nb_ecc_prev:1;
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} flags;
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