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mei: define dma ring buffer sizes for PCH12 HW and newer

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Define dma ring buffer sizes for PCH12 (CLN HW and newer)

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexander Usyskin 2018-07-31 09:35:37 +03:00 committed by Greg Kroah-Hartman
parent c2bd9fc13d
commit 7026a5fd7f
2 changed files with 17 additions and 0 deletions
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13
drivers/misc/mei/hw-me.c
View file

@ -19,6 +19,7 @@
#include <linux/kthread.h>
#include <linux/interrupt.h>
#include <linux/pm_runtime.h>
#include <linux/sizes.h>
#include "mei_dev.h"
#include "hbm.h"
@ -1389,6 +1390,11 @@ static bool mei_me_fw_type_sps(struct pci_dev *pdev)
.fw_status.status[4] = PCI_CFG_HFS_5, \
.fw_status.status[5] = PCI_CFG_HFS_6
#define MEI_CFG_DMA_128 \
.dma_size[DMA_DSCR_HOST] = SZ_128K, \
.dma_size[DMA_DSCR_DEVICE] = SZ_128K, \
.dma_size[DMA_DSCR_CTRL] = PAGE_SIZE
/* ICH Legacy devices */
static const struct mei_cfg mei_me_ich_cfg = {
MEI_CFG_ICH_HFS,
@ -1421,6 +1427,12 @@ static const struct mei_cfg mei_me_pch8_sps_cfg = {
MEI_CFG_FW_SPS,
};
/* Cannon Lake and newer devices */
static const struct mei_cfg mei_me_pch12_cfg = {
MEI_CFG_PCH8_HFS,
MEI_CFG_DMA_128,
};
/*
* mei_cfg_list - A list of platform platform specific configurations.
* Note: has to be synchronized with enum mei_cfg_idx.
@ -1433,6 +1445,7 @@ static const struct mei_cfg *const mei_cfg_list[] = {
[MEI_ME_PCH_CPT_PBG_CFG] = &mei_me_pch_cpt_pbg_cfg,
[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,
};
const struct mei_cfg *mei_me_get_cfg(kernel_ulong_t idx)

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

@ -31,10 +31,12 @@
*
* @fw_status: FW status
* @quirk_probe: device exclusion quirk
* @dma_size: device DMA buffers size
*/
struct mei_cfg {
const struct mei_fw_status fw_status;
bool (*quirk_probe)(struct pci_dev *pdev);
size_t dma_size[DMA_DSCR_NUM];
};
@ -80,6 +82,7 @@ struct mei_me_hw {
* @MEI_ME_PCH8_SPS_CFG: Platform Controller Hub Gen8 and newer
* servers platforms with quirk for
* SPS firmware exclusion.
* @MEI_ME_PCH12_CFG: Platform Controller Hub Gen12 and newer
* @MEI_ME_NUM_CFG: Upper Sentinel.
*/
enum mei_cfg_idx {
@ -90,6 +93,7 @@ enum mei_cfg_idx {
MEI_ME_PCH_CPT_PBG_CFG,
MEI_ME_PCH8_CFG,
MEI_ME_PCH8_SPS_CFG,
MEI_ME_PCH12_CFG,
MEI_ME_NUM_CFG,
};