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mei: me: disable mei interface on LBG servers.

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Disable the MEI driver on LBG SPS (server) platforms, some corner
flows such as recovery mode does not work, and the driver
doesn't have working use cases.

Cc: <stable@vger.kernel.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20200428211200.12200-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler 2020-04-29 00:12:00 +03:00 committed by Greg Kroah-Hartman
parent 73faaa623f
commit d76bc8200f
3 changed files with 13 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/misc/mei/hw-me.c
View File

@ -1465,6 +1465,13 @@ static const struct mei_cfg mei_me_pch12_cfg = {
MEI_CFG_DMA_128,
};
/* LBG with quirk for SPS Firmware exclusion */
static const struct mei_cfg mei_me_pch12_sps_cfg = {
MEI_CFG_PCH8_HFS,
MEI_CFG_FW_VER_SUPP,
MEI_CFG_FW_SPS,
};
/* Tiger Lake and newer devices */
static const struct mei_cfg mei_me_pch15_cfg = {
MEI_CFG_PCH8_HFS,
@ -1487,6 +1494,7 @@ static const struct mei_cfg *const mei_cfg_list[] = {
[MEI_ME_PCH8_CFG] = &mei_me_pch8_cfg,
[MEI_ME_PCH8_SPS_CFG] = &mei_me_pch8_sps_cfg,
[MEI_ME_PCH12_CFG] = &mei_me_pch12_cfg,
[MEI_ME_PCH12_SPS_CFG] = &mei_me_pch12_sps_cfg,
[MEI_ME_PCH15_CFG] = &mei_me_pch15_cfg,
};

4
drivers/misc/mei/hw-me.h
View File

@ -80,6 +80,9 @@ struct mei_me_hw {
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer
* @MEI_ME_PCH12_SPS_CFG: Platform Controller Hub Gen12 and newer
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH15_CFG: Platform Controller Hub Gen15 and newer
* @MEI_ME_NUM_CFG: Upper Sentinel.
*/
@ -93,6 +96,7 @@ enum mei_cfg_idx {
MEI_ME_PCH8_CFG,
MEI_ME_PCH8_SPS_CFG,
MEI_ME_PCH12_CFG,
MEI_ME_PCH12_SPS_CFG,
MEI_ME_PCH15_CFG,
MEI_ME_NUM_CFG,
};

2
drivers/misc/mei/pci-me.c
View File

@ -70,7 +70,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_2, MEI_ME_PCH8_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H, MEI_ME_PCH8_SPS_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_SPT_H_2, MEI_ME_PCH8_SPS_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_LBG, MEI_ME_PCH12_SPS_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_BXT_M, MEI_ME_PCH8_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_APL_I, MEI_ME_PCH8_CFG)},