| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Tue, 13 May 2014 01:30:53 +0300
From: Tomas Winkler <tomas.winkler@...el.com>
To: gregkh@...uxfoundation.org
Cc: arnd@...db.de, linux-kernel@...r.kernel.org,
Alexander Usyskin <alexander.usyskin@...el.com>,
Tomas Winkler <tomas.winkler@...el.com>
Subject: [char-misc-next 1/2] mei: add per device configuration
From: Alexander Usyskin <alexander.usyskin@...el.com>
Add mei_cfg structure that holds per device configuration
data and hooks, as the first step we add firmware
status register offsets
Signed-off-by: Alexander Usyskin <alexander.usyskin@...el.com>
Signed-off-by: Tomas Winkler <tomas.winkler@...el.com>
---
drivers/misc/mei/hw-me.c | 34 ++++++++++++++++++--
drivers/misc/mei/hw-me.h | 7 ++++-
drivers/misc/mei/hw-txe.c | 17 ++++++++--
drivers/misc/mei/hw-txe.h | 5 ++-
drivers/misc/mei/init.c | 24 ++++++++++++++-
drivers/misc/mei/mei_dev.h | 27 ++++++++++++----
drivers/misc/mei/pci-me.c | 77 ++++++++++++++++++++++++----------------------
drivers/misc/mei/pci-txe.c | 5 +--
8 files changed, 144 insertions(+), 52 deletions(-)
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index 016ad88..ed08118 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -792,14 +792,44 @@ static const struct mei_hw_ops mei_me_hw_ops = {
.read = mei_me_read_slots
};
+#define MEI_CFG_LEGACY_HFS \
+ .fw_status.count = 0
+
+#define MEI_CFG_ICH_HFS \
+ .fw_status.count = 1, \
+ .fw_status.status[0] = PCI_CFG_HFS_1
+
+#define MEI_CFG_PCH_HFS \
+ .fw_status.count = 2, \
+ .fw_status.status[0] = PCI_CFG_HFS_1, \
+ .fw_status.status[1] = PCI_CFG_HFS_2
+
+
+/* ICH Legacy devices */
+const struct mei_cfg mei_me_legacy_cfg = {
+ MEI_CFG_LEGACY_HFS,
+};
+
+/* ICH devices */
+const struct mei_cfg mei_me_ich_cfg = {
+ MEI_CFG_ICH_HFS,
+};
+
+/* PCH devices */
+const struct mei_cfg mei_me_pch_cfg = {
+ MEI_CFG_PCH_HFS,
+};
+
/**
* mei_me_dev_init - allocates and initializes the mei device structure
*
* @pdev: The pci device structure
+ * @cfg: per device generation config
*
* returns The mei_device_device pointer on success, NULL on failure.
*/
-struct mei_device *mei_me_dev_init(struct pci_dev *pdev)
+struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
+ const struct mei_cfg *cfg)
{
struct mei_device *dev;
@@ -808,7 +838,7 @@ struct mei_device *mei_me_dev_init(struct pci_dev *pdev)
if (!dev)
return NULL;
- mei_device_init(dev);
+ mei_device_init(dev, cfg);
dev->ops = &mei_me_hw_ops;
diff --git a/drivers/misc/mei/hw-me.h b/drivers/misc/mei/hw-me.h
index 0a75ab8..473aafb 100644
--- a/drivers/misc/mei/hw-me.h
+++ b/drivers/misc/mei/hw-me.h
@@ -38,7 +38,12 @@ struct mei_me_hw {
#define to_me_hw(dev) (struct mei_me_hw *)((dev)->hw)
-struct mei_device *mei_me_dev_init(struct pci_dev *pdev);
+extern const struct mei_cfg mei_me_legacy_cfg;
+extern const struct mei_cfg mei_me_ich_cfg;
+extern const struct mei_cfg mei_me_pch_cfg;
+
+struct mei_device *mei_me_dev_init(struct pci_dev *pdev,
+ const struct mei_cfg *cfg);
int mei_me_pg_set_sync(struct mei_device *dev);
int mei_me_pg_unset_sync(struct mei_device *dev);
diff --git a/drivers/misc/mei/hw-txe.c b/drivers/misc/mei/hw-txe.c
index 455a6a5..9327378 100644
--- a/drivers/misc/mei/hw-txe.c
+++ b/drivers/misc/mei/hw-txe.c
@@ -1104,14 +1104,27 @@ static const struct mei_hw_ops mei_txe_hw_ops = {
};
+#define MEI_CFG_TXE_FW_STS \
+ .fw_status.count = 2, \
+ .fw_status.status[0] = PCI_CFG_TXE_FW_STS0, \
+ .fw_status.status[1] = PCI_CFG_TXE_FW_STS1
+
+const struct mei_cfg mei_txe_cfg = {
+ MEI_CFG_TXE_FW_STS,
+};
+
+
/**
* mei_txe_dev_init - allocates and initializes txe hardware specific structure
*
* @pdev - pci device
+ * @cfg - per device generation config
+ *
* returns struct mei_device * on success or NULL;
*
*/
-struct mei_device *mei_txe_dev_init(struct pci_dev *pdev)
+struct mei_device *mei_txe_dev_init(struct pci_dev *pdev,
+ const struct mei_cfg *cfg)
{
struct mei_device *dev;
struct mei_txe_hw *hw;
@@ -1121,7 +1134,7 @@ struct mei_device *mei_txe_dev_init(struct pci_dev *pdev)
if (!dev)
return NULL;
- mei_device_init(dev);
+ mei_device_init(dev, cfg);
hw = to_txe_hw(dev);
diff --git a/drivers/misc/mei/hw-txe.h b/drivers/misc/mei/hw-txe.h
index e8dd2d1..e244af7 100644
--- a/drivers/misc/mei/hw-txe.h
+++ b/drivers/misc/mei/hw-txe.h
@@ -61,7 +61,10 @@ static inline struct mei_device *hw_txe_to_mei(struct mei_txe_hw *hw)
return container_of((void *)hw, struct mei_device, hw);
}
-struct mei_device *mei_txe_dev_init(struct pci_dev *pdev);
+extern const struct mei_cfg mei_txe_cfg;
+
+struct mei_device *mei_txe_dev_init(struct pci_dev *pdev,
+ const struct mei_cfg *cfg);
irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id);
irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id);
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 510f378..0069292 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -330,7 +330,28 @@ bool mei_write_is_idle(struct mei_device *dev)
}
EXPORT_SYMBOL_GPL(mei_write_is_idle);
-void mei_device_init(struct mei_device *dev)
+int mei_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status)
+{
+ int i;
+ const struct mei_fw_status *fw_src = &dev->cfg->fw_status;
+
+ if (!fw_status)
+ return -EINVAL;
+
+ fw_status->count = fw_src->count;
+ for (i = 0; i < fw_src->count && i < MEI_FW_STATUS_MAX; i++) {
+ int ret;
+ ret = pci_read_config_dword(dev->pdev,
+ fw_src->status[i], &fw_status->status[i]);
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(mei_fw_status);
+
+void mei_device_init(struct mei_device *dev, const struct mei_cfg *cfg)
{
/* setup our list array */
INIT_LIST_HEAD(&dev->file_list);
@@ -368,6 +389,7 @@ void mei_device_init(struct mei_device *dev)
bitmap_set(dev->host_clients_map, 0, 1);
dev->pg_event = MEI_PG_EVENT_IDLE;
+ dev->cfg = cfg;
}
EXPORT_SYMBOL_GPL(mei_device_init);
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 1aaaf0b..909d13d 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -379,6 +379,22 @@ enum mei_pg_state {
MEI_PG_ON = 1,
};
+/*
+ * mei_cfg
+ *
+ * @fw_status - FW status
+ */
+struct mei_cfg {
+ const struct mei_fw_status fw_status;
+};
+
+
+#define MEI_PCI_DEVICE(dev, cfg) \
+ .vendor = PCI_VENDOR_ID_INTEL, .device = (dev), \
+ .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, \
+ .driver_data = (kernel_ulong_t)&(cfg)
+
+
/**
* struct mei_device - MEI private device struct
@@ -390,6 +406,7 @@ enum mei_pg_state {
* @hbuf_depth - depth of hardware host/write buffer is slots
* @hbuf_is_ready - query if the host host/write buffer is ready
* @wr_msg - the buffer for hbm control messages
+ * @cfg - per device generation config and ops
*/
struct mei_device {
struct pci_dev *pdev; /* pointer to pci device struct */
@@ -500,6 +517,7 @@ struct mei_device {
const struct mei_hw_ops *ops;
+ const struct mei_cfg *cfg;
char hw[0] __aligned(sizeof(void *));
};
@@ -532,7 +550,7 @@ static inline u32 mei_slots2data(int slots)
/*
* mei init function prototypes
*/
-void mei_device_init(struct mei_device *dev);
+void mei_device_init(struct mei_device *dev, const struct mei_cfg *cfg);
int mei_reset(struct mei_device *dev);
int mei_start(struct mei_device *dev);
int mei_restart(struct mei_device *dev);
@@ -611,6 +629,7 @@ void mei_watchdog_unregister(struct mei_device *dev);
* Register Access Function
*/
+
static inline void mei_hw_config(struct mei_device *dev)
{
dev->ops->hw_config(dev);
@@ -698,11 +717,7 @@ static inline int mei_count_full_read_slots(struct mei_device *dev)
return dev->ops->rdbuf_full_slots(dev);
}
-static inline int mei_fw_status(struct mei_device *dev,
- struct mei_fw_status *fw_status)
-{
- return dev->ops->fw_status(dev, fw_status);
-}
+int mei_fw_status(struct mei_device *dev, struct mei_fw_status *fw_status);
#define FW_STS_FMT "%08X %08X"
#define FW_STS_PRM(fw_status) \
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 88516b0..6cb9819 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -44,42 +44,44 @@
/* mei_pci_tbl - PCI Device ID Table */
static const struct pci_device_id mei_me_pci_tbl[] = {
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82946GZ)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82G35)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82Q965)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82G965)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82GM965)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82GME965)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_82Q35)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_82G33)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_82Q33)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_82X38)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_3200)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_6)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_7)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_8)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_9)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9_10)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9M_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9M_2)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9M_3)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH9M_4)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH10_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH10_2)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH10_3)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_ICH10_4)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_IBXPK_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_IBXPK_2)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_CPT_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PBG_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_1)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_H)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_HR)},
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_WPT_LP)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82946GZ, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82G35, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82Q965, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82G965, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82GM965, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_82GME965, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82Q35, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82G33, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82Q33, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_82X38, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_3200, mei_me_legacy_cfg)},
+
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_6, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_7, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_8, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_9, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9_10, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_1, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_2, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_3, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH9M_4, mei_me_legacy_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_1, mei_me_ich_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_2, mei_me_ich_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_3, mei_me_ich_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ICH10_4, mei_me_ich_cfg)},
+
+ {MEI_PCI_DEVICE(MEI_DEV_ID_IBXPK_1, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_IBXPK_2, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_CPT_1, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_PBG_1, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_1, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_2, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_PPT_3, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_H, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_W, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_LP, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_LPT_HR, mei_me_pch_cfg)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_WPT_LP, mei_me_pch_cfg)},
/* required last entry */
{0, }
@@ -143,6 +145,7 @@ no_mei:
*/
static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ const struct mei_cfg *cfg = (struct mei_cfg *)(ent->driver_data);
struct mei_device *dev;
struct mei_me_hw *hw;
int err;
@@ -183,7 +186,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
/* allocates and initializes the mei dev structure */
- dev = mei_me_dev_init(pdev);
+ dev = mei_me_dev_init(pdev, cfg);
if (!dev) {
err = -ENOMEM;
goto release_regions;
diff --git a/drivers/misc/mei/pci-txe.c b/drivers/misc/mei/pci-txe.c
index 2c3f562..2343c62 100644
--- a/drivers/misc/mei/pci-txe.c
+++ b/drivers/misc/mei/pci-txe.c
@@ -36,7 +36,7 @@
#include "hw-txe.h"
static const struct pci_device_id mei_txe_pci_tbl[] = {
- {PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x0F18)}, /* Baytrail */
+ {MEI_PCI_DEVICE(0x0F18, mei_txe_cfg)}, /* Baytrail */
{0, }
};
MODULE_DEVICE_TABLE(pci, mei_txe_pci_tbl);
@@ -69,6 +69,7 @@ static void mei_txe_pci_iounmap(struct pci_dev *pdev, struct mei_txe_hw *hw)
*/
static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
+ const struct mei_cfg *cfg = (struct mei_cfg *)(ent->driver_data);
struct mei_device *dev;
struct mei_txe_hw *hw;
int err;
@@ -99,7 +100,7 @@ static int mei_txe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
}
/* allocates and initializes the mei dev structure */
- dev = mei_txe_dev_init(pdev);
+ dev = mei_txe_dev_init(pdev, cfg);
if (!dev) {
err = -ENOMEM;
goto release_regions;
--
1.9.0
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists