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-rw-r--r--drivers/misc/mei/client.c1
-rw-r--r--drivers/misc/mei/hw-me-regs.h2
-rw-r--r--drivers/misc/mei/hw-me.c43
-rw-r--r--drivers/misc/mei/init.c5
-rw-r--r--drivers/misc/mei/interrupt.c35
-rw-r--r--drivers/misc/mei/pci-me.c11
6 files changed, 51 insertions, 46 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 06734670a732..31264ab2eb13 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -2148,6 +2148,7 @@ void mei_cl_all_disconnect(struct mei_device *dev)
list_for_each_entry(cl, &dev->file_list, link)
mei_cl_set_disconnected(cl);
}
+EXPORT_SYMBOL_GPL(mei_cl_all_disconnect);
static struct mei_cl *mei_cl_dma_map_find(struct mei_device *dev, u8 buffer_id)
{
diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 67bb6a25fd0a..64ce3f830262 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -107,6 +107,7 @@
#define MEI_DEV_ID_ADP_S 0x7AE8 /* Alder Lake Point S */
#define MEI_DEV_ID_ADP_LP 0x7A60 /* Alder Lake Point LP */
#define MEI_DEV_ID_ADP_P 0x51E0 /* Alder Lake Point P */
+#define MEI_DEV_ID_ADP_N 0x54E0 /* Alder Lake Point N */
/*
* MEI HW Section
@@ -120,6 +121,7 @@
#define PCI_CFG_HFS_2 0x48
#define PCI_CFG_HFS_3 0x60
# define PCI_CFG_HFS_3_FW_SKU_MSK 0x00000070
+# define PCI_CFG_HFS_3_FW_SKU_IGN 0x00000000
# define PCI_CFG_HFS_3_FW_SKU_SPS 0x00000060
#define PCI_CFG_HFS_4 0x64
#define PCI_CFG_HFS_5 0x68
diff --git a/drivers/misc/mei/hw-me.c b/drivers/misc/mei/hw-me.c
index d3a6c0728645..719fee9af156 100644
--- a/drivers/misc/mei/hw-me.c
+++ b/drivers/misc/mei/hw-me.c
@@ -1257,7 +1257,11 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
/* check if ME wants a reset */
if (!mei_hw_is_ready(dev) && dev->dev_state != MEI_DEV_RESETTING) {
dev_warn(dev->dev, "FW not ready: resetting.\n");
- schedule_work(&dev->reset_work);
+ if (dev->dev_state == MEI_DEV_POWERING_DOWN ||
+ dev->dev_state == MEI_DEV_POWER_DOWN)
+ mei_cl_all_disconnect(dev);
+ else if (dev->dev_state != MEI_DEV_DISABLED)
+ schedule_work(&dev->reset_work);
goto end;
}
@@ -1289,12 +1293,14 @@ irqreturn_t mei_me_irq_thread_handler(int irq, void *dev_id)
if (rets == -ENODATA)
break;
- if (rets &&
- (dev->dev_state != MEI_DEV_RESETTING &&
- dev->dev_state != MEI_DEV_POWER_DOWN)) {
- dev_err(dev->dev, "mei_irq_read_handler ret = %d.\n",
- rets);
- schedule_work(&dev->reset_work);
+ if (rets) {
+ dev_err(dev->dev, "mei_irq_read_handler ret = %d, state = %d.\n",
+ rets, dev->dev_state);
+ if (dev->dev_state != MEI_DEV_RESETTING &&
+ dev->dev_state != MEI_DEV_DISABLED &&
+ dev->dev_state != MEI_DEV_POWERING_DOWN &&
+ dev->dev_state != MEI_DEV_POWER_DOWN)
+ schedule_work(&dev->reset_work);
goto end;
}
}
@@ -1405,16 +1411,16 @@ static bool mei_me_fw_type_sps_4(const struct pci_dev *pdev)
.quirk_probe = mei_me_fw_type_sps_4
/**
- * mei_me_fw_type_sps() - check for sps sku
+ * mei_me_fw_type_sps_ign() - check for sps or ign sku
*
- * Read ME FW Status register to check for SPS Firmware.
- * The SPS FW is only signaled in pci function 0
+ * Read ME FW Status register to check for SPS or IGN Firmware.
+ * The SPS/IGN FW is only signaled in pci function 0
*
* @pdev: pci device
*
- * Return: true in case of SPS firmware
+ * Return: true in case of SPS/IGN firmware
*/
-static bool mei_me_fw_type_sps(const struct pci_dev *pdev)
+static bool mei_me_fw_type_sps_ign(const struct pci_dev *pdev)
{
u32 reg;
u32 fw_type;
@@ -1427,14 +1433,15 @@ static bool mei_me_fw_type_sps(const struct pci_dev *pdev)
dev_dbg(&pdev->dev, "fw type is %d\n", fw_type);
- return fw_type == PCI_CFG_HFS_3_FW_SKU_SPS;
+ return fw_type == PCI_CFG_HFS_3_FW_SKU_IGN ||
+ fw_type == PCI_CFG_HFS_3_FW_SKU_SPS;
}
#define MEI_CFG_KIND_ITOUCH \
.kind = "itouch"
-#define MEI_CFG_FW_SPS \
- .quirk_probe = mei_me_fw_type_sps
+#define MEI_CFG_FW_SPS_IGN \
+ .quirk_probe = mei_me_fw_type_sps_ign
#define MEI_CFG_FW_VER_SUPP \
.fw_ver_supported = 1
@@ -1535,7 +1542,7 @@ static const struct mei_cfg mei_me_pch12_sps_cfg = {
MEI_CFG_PCH8_HFS,
MEI_CFG_FW_VER_SUPP,
MEI_CFG_DMA_128,
- MEI_CFG_FW_SPS,
+ MEI_CFG_FW_SPS_IGN,
};
/* Cannon Lake itouch with quirk for SPS 5.0 and newer Firmware exclusion
@@ -1545,7 +1552,7 @@ static const struct mei_cfg mei_me_pch12_itouch_sps_cfg = {
MEI_CFG_KIND_ITOUCH,
MEI_CFG_PCH8_HFS,
MEI_CFG_FW_VER_SUPP,
- MEI_CFG_FW_SPS,
+ MEI_CFG_FW_SPS_IGN,
};
/* Tiger Lake and newer devices */
@@ -1562,7 +1569,7 @@ static const struct mei_cfg mei_me_pch15_sps_cfg = {
MEI_CFG_FW_VER_SUPP,
MEI_CFG_DMA_128,
MEI_CFG_TRC,
- MEI_CFG_FW_SPS,
+ MEI_CFG_FW_SPS_IGN,
};
/*
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index f79076c67256..eb052005ca86 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -161,6 +161,11 @@ int mei_reset(struct mei_device *dev)
return ret;
}
+ if (dev->dev_state != MEI_DEV_RESETTING) {
+ dev_dbg(dev->dev, "wrong state = %d on link start\n", dev->dev_state);
+ return 0;
+ }
+
dev_dbg(dev->dev, "link is established start sending messages.\n");
mei_set_devstate(dev, MEI_DEV_INIT_CLIENTS);
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index a67f4f2d33a9..0706322154cb 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -424,31 +424,26 @@ int mei_irq_read_handler(struct mei_device *dev,
list_for_each_entry(cl, &dev->file_list, link) {
if (mei_cl_hbm_equal(cl, mei_hdr)) {
cl_dbg(dev, cl, "got a message\n");
- break;
+ ret = mei_cl_irq_read_msg(cl, mei_hdr, meta_hdr, cmpl_list);
+ goto reset_slots;
}
}
/* if no recipient cl was found we assume corrupted header */
- if (&cl->link == &dev->file_list) {
- /* A message for not connected fixed address clients
- * should be silently discarded
- * On power down client may be force cleaned,
- * silently discard such messages
- */
- if (hdr_is_fixed(mei_hdr) ||
- dev->dev_state == MEI_DEV_POWER_DOWN) {
- mei_irq_discard_msg(dev, mei_hdr, mei_hdr->length);
- ret = 0;
- goto reset_slots;
- }
- dev_err(dev->dev, "no destination client found 0x%08X\n",
- dev->rd_msg_hdr[0]);
- ret = -EBADMSG;
- goto end;
+ /* A message for not connected fixed address clients
+ * should be silently discarded
+ * On power down client may be force cleaned,
+ * silently discard such messages
+ */
+ if (hdr_is_fixed(mei_hdr) ||
+ dev->dev_state == MEI_DEV_POWER_DOWN) {
+ mei_irq_discard_msg(dev, mei_hdr, mei_hdr->length);
+ ret = 0;
+ goto reset_slots;
}
-
- ret = mei_cl_irq_read_msg(cl, mei_hdr, meta_hdr, cmpl_list);
-
+ dev_err(dev->dev, "no destination client found 0x%08X\n", dev->rd_msg_hdr[0]);
+ ret = -EBADMSG;
+ goto end;
reset_slots:
/* reset the number of slots and header */
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 3a45aaf002ac..33e58821e478 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -10,6 +10,7 @@
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/pci.h>
+#include <linux/dma-mapping.h>
#include <linux/sched.h>
#include <linux/interrupt.h>
@@ -113,6 +114,7 @@ static const struct pci_device_id mei_me_pci_tbl[] = {
{MEI_PCI_DEVICE(MEI_DEV_ID_ADP_S, MEI_ME_PCH15_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_ADP_LP, MEI_ME_PCH15_CFG)},
{MEI_PCI_DEVICE(MEI_DEV_ID_ADP_P, MEI_ME_PCH15_CFG)},
+ {MEI_PCI_DEVICE(MEI_DEV_ID_ADP_N, MEI_ME_PCH15_CFG)},
/* required last entry */
{0, }
@@ -192,14 +194,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto end;
}
- if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) ||
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-
- err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
- if (err)
- err = dma_set_coherent_mask(&pdev->dev,
- DMA_BIT_MASK(32));
- }
+ err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
if (err) {
dev_err(&pdev->dev, "No usable DMA configuration, aborting\n");
goto end;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 09:21:58 +0000