From 7026a5fd7f2cd36fee5ec40f3652f942700671b7 Mon Sep 17 00:00:00 2001 From: Alexander Usyskin Date: Tue, 31 Jul 2018 09:35:37 +0300 Subject: [PATCH] mei: define dma ring buffer sizes for PCH12 HW and newer Define dma ring buffer sizes for PCH12 (CLN HW and newer) Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/hw-me.c | 13 +++++++++++++ drivers/misc/mei/hw-me.h | 4 ++++ 2 files changed, 17 insertions(+) diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c index 0e3c315..0759c3a 100644 --- a/drivers/misc/mei/hw-me.c +++ b/drivers/misc/mei/hw-me.c @@ -19,6 +19,7 @@ #include #include #include +#include #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) diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h index 0c6fe71..bbcc5fc 100644 --- a/drivers/misc/mei/hw-me.h +++ b/drivers/misc/mei/hw-me.h @@ -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, }; -- 2.7.4