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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f8204f0ddd
The fixed MKHI client on PCH 6 gen platforms does not support fw version retrieval. The error is not fatal, but it fills up the kernel logs and slows down the driver start. This patch disables requesting FW version on GEN6 and earlier platforms. Fixes warning: [ 15.964298] mei mei::55213584-9a29-4916-badf-0fb7ed682aeb:01: Could not read FW version [ 15.964301] mei mei::55213584-9a29-4916-badf-0fb7ed682aeb:01: version command failed -5 Cc: <stable@vger.kernel.org> +v4.18 Cc: Paul Menzel <pmenzel@molgen.mpg.de> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20191004181722.31374-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
104 lines
2.9 KiB
C
104 lines
2.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2012-2018, Intel Corporation. All rights reserved.
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* Intel Management Engine Interface (Intel MEI) Linux driver
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*/
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#ifndef _MEI_INTERFACE_H_
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#define _MEI_INTERFACE_H_
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#include <linux/irqreturn.h>
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#include <linux/pci.h>
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#include <linux/mei.h>
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#include "mei_dev.h"
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#include "client.h"
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/*
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* mei_cfg - mei device configuration
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*
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* @fw_status: FW status
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* @quirk_probe: device exclusion quirk
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* @dma_size: device DMA buffers size
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* @fw_ver_supported: is fw version retrievable from FW
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*/
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struct mei_cfg {
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const struct mei_fw_status fw_status;
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bool (*quirk_probe)(struct pci_dev *pdev);
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size_t dma_size[DMA_DSCR_NUM];
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u32 fw_ver_supported:1;
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};
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#define MEI_PCI_DEVICE(dev, cfg) \
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.vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
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.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
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.driver_data = (kernel_ulong_t)(cfg),
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#define MEI_ME_RPM_TIMEOUT 500 /* ms */
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/**
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* struct mei_me_hw - me hw specific data
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*
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* @cfg: per device generation config and ops
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* @mem_addr: io memory address
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* @pg_state: power gating state
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* @d0i3_supported: di03 support
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* @hbuf_depth: depth of hardware host/write buffer in slots
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*/
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struct mei_me_hw {
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const struct mei_cfg *cfg;
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void __iomem *mem_addr;
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enum mei_pg_state pg_state;
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bool d0i3_supported;
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u8 hbuf_depth;
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};
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#define to_me_hw(dev) (struct mei_me_hw *)((dev)->hw)
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/**
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* enum mei_cfg_idx - indices to platform specific configurations.
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*
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* Note: has to be synchronized with mei_cfg_list[]
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*
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* @MEI_ME_UNDEF_CFG: Lower sentinel.
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* @MEI_ME_ICH_CFG: I/O Controller Hub legacy devices.
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* @MEI_ME_ICH10_CFG: I/O Controller Hub platforms Gen10
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* @MEI_ME_PCH6_CFG: Platform Controller Hub platforms (Gen6).
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* @MEI_ME_PCH7_CFG: Platform Controller Hub platforms (Gen7).
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* @MEI_ME_PCH_CPT_PBG_CFG:Platform Controller Hub workstations
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* with quirk for Node Manager exclusion.
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* @MEI_ME_PCH8_CFG: Platform Controller Hub Gen8 and newer
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* client platforms.
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* @MEI_ME_PCH8_SPS_CFG: Platform Controller Hub Gen8 and newer
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* servers platforms with quirk for
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* SPS firmware exclusion.
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* @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer
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* @MEI_ME_NUM_CFG: Upper Sentinel.
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*/
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enum mei_cfg_idx {
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MEI_ME_UNDEF_CFG,
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MEI_ME_ICH_CFG,
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MEI_ME_ICH10_CFG,
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MEI_ME_PCH6_CFG,
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MEI_ME_PCH7_CFG,
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MEI_ME_PCH_CPT_PBG_CFG,
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MEI_ME_PCH8_CFG,
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MEI_ME_PCH8_SPS_CFG,
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MEI_ME_PCH12_CFG,
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MEI_ME_NUM_CFG,
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};
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const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx);
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struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
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const struct mei_cfg *cfg);
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int mei_me_pg_enter_sync(struct mei_device *dev);
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int mei_me_pg_exit_sync(struct mei_device *dev);
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irqreturn_t mei_me_irq_quick_handler(int irq, void *dev_id);
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irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id);
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#endif /* _MEI_INTERFACE_H_ */
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