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-rw-r--r--drivers/char/tpm/tpm.h2
-rw-r--r--drivers/char/tpm/tpm_atmel.c28
-rw-r--r--drivers/char/tpm/tpm_atmel.h5
-rw-r--r--drivers/char/tpm/tpm_tis.c100
4 files changed, 78 insertions, 57 deletions
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index cd780c7d21ff..357ac14aef16 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -131,8 +131,6 @@ enum tpm2_startup_types {
struct tpm_chip;
struct tpm_vendor_specific {
- void __iomem *iobase; /* ioremapped address */
-
int irq;
int locality;
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index 68d5c0991c51..b76929961281 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -37,6 +37,7 @@ enum tpm_atmel_read_status {
static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
{
+ struct tpm_atmel_priv *priv = chip->vendor.priv;
u8 status, *hdr = buf;
u32 size;
int i;
@@ -47,12 +48,12 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
return -EIO;
for (i = 0; i < 6; i++) {
- status = ioread8(chip->vendor.iobase + 1);
+ status = ioread8(priv->iobase + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
dev_err(&chip->dev, "error reading header\n");
return -EIO;
}
- *buf++ = ioread8(chip->vendor.iobase);
+ *buf++ = ioread8(priv->iobase);
}
/* size of the data received */
@@ -63,7 +64,7 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
dev_err(&chip->dev,
"Recv size(%d) less than available space\n", size);
for (; i < size; i++) { /* clear the waiting data anyway */
- status = ioread8(chip->vendor.iobase + 1);
+ status = ioread8(priv->iobase + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
dev_err(&chip->dev, "error reading data\n");
return -EIO;
@@ -74,16 +75,16 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
/* read all the data available */
for (; i < size; i++) {
- status = ioread8(chip->vendor.iobase + 1);
+ status = ioread8(priv->iobase + 1);
if ((status & ATML_STATUS_DATA_AVAIL) == 0) {
dev_err(&chip->dev, "error reading data\n");
return -EIO;
}
- *buf++ = ioread8(chip->vendor.iobase);
+ *buf++ = ioread8(priv->iobase);
}
/* make sure data available is gone */
- status = ioread8(chip->vendor.iobase + 1);
+ status = ioread8(priv->iobase + 1);
if (status & ATML_STATUS_DATA_AVAIL) {
dev_err(&chip->dev, "data available is stuck\n");
@@ -95,12 +96,13 @@ static int tpm_atml_recv(struct tpm_chip *chip, u8 *buf, size_t count)
static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
{
+ struct tpm_atmel_priv *priv = chip->vendor.priv;
int i;
dev_dbg(&chip->dev, "tpm_atml_send:\n");
for (i = 0; i < count; i++) {
dev_dbg(&chip->dev, "%d 0x%x(%d)\n", i, buf[i], buf[i]);
- iowrite8(buf[i], chip->vendor.iobase);
+ iowrite8(buf[i], priv->iobase);
}
return count;
@@ -108,12 +110,16 @@ static int tpm_atml_send(struct tpm_chip *chip, u8 *buf, size_t count)
static void tpm_atml_cancel(struct tpm_chip *chip)
{
- iowrite8(ATML_STATUS_ABORT, chip->vendor.iobase + 1);
+ struct tpm_atmel_priv *priv = chip->vendor.priv;
+
+ iowrite8(ATML_STATUS_ABORT, priv->iobase + 1);
}
static u8 tpm_atml_status(struct tpm_chip *chip)
{
- return ioread8(chip->vendor.iobase + 1);
+ struct tpm_atmel_priv *priv = chip->vendor.priv;
+
+ return ioread8(priv->iobase + 1);
}
static bool tpm_atml_req_canceled(struct tpm_chip *chip, u8 status)
@@ -142,7 +148,7 @@ static void atml_plat_remove(void)
tpm_chip_unregister(chip);
if (priv->have_region)
atmel_release_region(priv->base, priv->region_size);
- atmel_put_base_addr(chip->vendor.iobase);
+ atmel_put_base_addr(priv->iobase);
platform_device_unregister(pdev);
}
}
@@ -190,6 +196,7 @@ static int __init init_atmel(void)
goto err_unreg_dev;
}
+ priv->iobase = iobase;
priv->base = base;
priv->have_region = have_region;
priv->region_size = region_size;
@@ -200,7 +207,6 @@ static int __init init_atmel(void)
goto err_unreg_dev;
}
- chip->vendor.iobase = iobase;
chip->vendor.priv = priv;
rc = tpm_chip_register(chip);
diff --git a/drivers/char/tpm/tpm_atmel.h b/drivers/char/tpm/tpm_atmel.h
index bced6780afe8..1938c0ba7e6c 100644
--- a/drivers/char/tpm/tpm_atmel.h
+++ b/drivers/char/tpm/tpm_atmel.h
@@ -26,6 +26,7 @@ struct tpm_atmel_priv {
int region_size;
int have_region;
unsigned long base;
+ void __iomem *iobase;
};
static inline struct tpm_atmel_priv *atmel_get_priv(struct tpm_chip *chip)
@@ -37,8 +38,8 @@ static inline struct tpm_atmel_priv *atmel_get_priv(struct tpm_chip *chip)
#include <asm/prom.h>
-#define atmel_getb(chip, offset) readb(chip->vendor->iobase + offset);
-#define atmel_putb(val, chip, offset) writeb(val, chip->vendor->iobase + offset)
+#define atmel_getb(priv, offset) readb(priv->iobase + offset)
+#define atmel_putb(val, priv, offset) writeb(val, priv->iobase + offset)
#define atmel_request_region request_mem_region
#define atmel_release_region release_mem_region
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index bf9d3312104b..41c4b60078de 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -94,6 +94,7 @@ struct tpm_info {
#define TPM_RID(l) (0x0F04 | ((l) << 12))
struct priv_data {
+ void __iomem *iobase;
u16 manufacturer_id;
bool irq_tested;
wait_queue_head_t int_queue;
@@ -128,9 +129,10 @@ static inline int is_itpm(struct acpi_device *dev)
* correct values in the other bits.' */
static int wait_startup(struct tpm_chip *chip, int l)
{
+ struct priv_data *priv = chip->vendor.priv;
unsigned long stop = jiffies + chip->vendor.timeout_a;
do {
- if (ioread8(chip->vendor.iobase + TPM_ACCESS(l)) &
+ if (ioread8(priv->iobase + TPM_ACCESS(l)) &
TPM_ACCESS_VALID)
return 0;
msleep(TPM_TIMEOUT);
@@ -140,7 +142,9 @@ static int wait_startup(struct tpm_chip *chip, int l)
static int check_locality(struct tpm_chip *chip, int l)
{
- if ((ioread8(chip->vendor.iobase + TPM_ACCESS(l)) &
+ struct priv_data *priv = chip->vendor.priv;
+
+ if ((ioread8(priv->iobase + TPM_ACCESS(l)) &
(TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID)) ==
(TPM_ACCESS_ACTIVE_LOCALITY | TPM_ACCESS_VALID))
return chip->vendor.locality = l;
@@ -150,11 +154,13 @@ static int check_locality(struct tpm_chip *chip, int l)
static void release_locality(struct tpm_chip *chip, int l, int force)
{
- if (force || (ioread8(chip->vendor.iobase + TPM_ACCESS(l)) &
+ struct priv_data *priv = chip->vendor.priv;
+
+ if (force || (ioread8(priv->iobase + TPM_ACCESS(l)) &
(TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID)) ==
(TPM_ACCESS_REQUEST_PENDING | TPM_ACCESS_VALID))
iowrite8(TPM_ACCESS_ACTIVE_LOCALITY,
- chip->vendor.iobase + TPM_ACCESS(l));
+ priv->iobase + TPM_ACCESS(l));
}
static int request_locality(struct tpm_chip *chip, int l)
@@ -167,7 +173,7 @@ static int request_locality(struct tpm_chip *chip, int l)
return l;
iowrite8(TPM_ACCESS_REQUEST_USE,
- chip->vendor.iobase + TPM_ACCESS(l));
+ priv->iobase + TPM_ACCESS(l));
stop = jiffies + chip->vendor.timeout_a;
@@ -200,19 +206,24 @@ again:
static u8 tpm_tis_status(struct tpm_chip *chip)
{
- return ioread8(chip->vendor.iobase +
+ struct priv_data *priv = chip->vendor.priv;
+
+ return ioread8(priv->iobase +
TPM_STS(chip->vendor.locality));
}
static void tpm_tis_ready(struct tpm_chip *chip)
{
+ struct priv_data *priv = chip->vendor.priv;
+
/* this causes the current command to be aborted */
iowrite8(TPM_STS_COMMAND_READY,
- chip->vendor.iobase + TPM_STS(chip->vendor.locality));
+ priv->iobase + TPM_STS(chip->vendor.locality));
}
static int get_burstcount(struct tpm_chip *chip)
{
+ struct priv_data *priv = chip->vendor.priv;
unsigned long stop;
int burstcnt;
@@ -220,9 +231,9 @@ static int get_burstcount(struct tpm_chip *chip)
/* which timeout value, spec has 2 answers (c & d) */
stop = jiffies + chip->vendor.timeout_d;
do {
- burstcnt = ioread8(chip->vendor.iobase +
+ burstcnt = ioread8(priv->iobase +
TPM_STS(chip->vendor.locality) + 1);
- burstcnt += ioread8(chip->vendor.iobase +
+ burstcnt += ioread8(priv->iobase +
TPM_STS(chip->vendor.locality) +
2) << 8;
if (burstcnt)
@@ -234,6 +245,7 @@ static int get_burstcount(struct tpm_chip *chip)
static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
{
+ struct priv_data *priv = chip->vendor.priv;
int size = 0, burstcnt;
while (size < count &&
wait_for_tpm_stat(chip,
@@ -243,7 +255,7 @@ static int recv_data(struct tpm_chip *chip, u8 *buf, size_t count)
== 0) {
burstcnt = get_burstcount(chip);
for (; burstcnt > 0 && size < count; burstcnt--)
- buf[size++] = ioread8(chip->vendor.iobase +
+ buf[size++] = ioread8(priv->iobase +
TPM_DATA_FIFO(chip->vendor.
locality));
}
@@ -329,7 +341,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
while (count < len - 1) {
burstcnt = get_burstcount(chip);
for (; burstcnt > 0 && count < len - 1; burstcnt--) {
- iowrite8(buf[count], chip->vendor.iobase +
+ iowrite8(buf[count], priv->iobase +
TPM_DATA_FIFO(chip->vendor.locality));
count++;
}
@@ -345,7 +357,7 @@ static int tpm_tis_send_data(struct tpm_chip *chip, u8 *buf, size_t len)
/* write last byte */
iowrite8(buf[count],
- chip->vendor.iobase + TPM_DATA_FIFO(chip->vendor.locality));
+ priv->iobase + TPM_DATA_FIFO(chip->vendor.locality));
wait_for_tpm_stat(chip, TPM_STS_VALID, chip->vendor.timeout_c,
&priv->int_queue, false);
status = tpm_tis_status(chip);
@@ -364,15 +376,15 @@ out_err:
static void disable_interrupts(struct tpm_chip *chip)
{
+ struct priv_data *priv = chip->vendor.priv;
u32 intmask;
intmask =
- ioread32(chip->vendor.iobase +
+ ioread32(priv->iobase +
TPM_INT_ENABLE(chip->vendor.locality));
intmask &= ~TPM_GLOBAL_INT_ENABLE;
iowrite32(intmask,
- chip->vendor.iobase +
- TPM_INT_ENABLE(chip->vendor.locality));
+ priv->iobase + TPM_INT_ENABLE(chip->vendor.locality));
devm_free_irq(&chip->dev, chip->vendor.irq, chip);
chip->vendor.irq = 0;
}
@@ -384,6 +396,7 @@ static void disable_interrupts(struct tpm_chip *chip)
*/
static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len)
{
+ struct priv_data *priv = chip->vendor.priv;
int rc;
u32 ordinal;
unsigned long dur;
@@ -394,7 +407,7 @@ static int tpm_tis_send_main(struct tpm_chip *chip, u8 *buf, size_t len)
/* go and do it */
iowrite8(TPM_STS_GO,
- chip->vendor.iobase + TPM_STS(chip->vendor.locality));
+ priv->iobase + TPM_STS(chip->vendor.locality));
if (chip->vendor.irq) {
ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
@@ -453,10 +466,11 @@ static const struct tis_vendor_timeout_override vendor_timeout_overrides[] = {
static bool tpm_tis_update_timeouts(struct tpm_chip *chip,
unsigned long *timeout_cap)
{
+ struct priv_data *priv = chip->vendor.priv;
int i;
u32 did_vid;
- did_vid = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
+ did_vid = ioread32(priv->iobase + TPM_DID_VID(0));
for (i = 0; i != ARRAY_SIZE(vendor_timeout_overrides); i++) {
if (vendor_timeout_overrides[i].did_vid != did_vid)
@@ -476,6 +490,7 @@ static bool tpm_tis_update_timeouts(struct tpm_chip *chip,
*/
static int probe_itpm(struct tpm_chip *chip)
{
+ struct priv_data *priv = chip->vendor.priv;
int rc = 0;
u8 cmd_getticks[] = {
0x00, 0xc1, 0x00, 0x00, 0x00, 0x0a,
@@ -483,7 +498,7 @@ static int probe_itpm(struct tpm_chip *chip)
};
size_t len = sizeof(cmd_getticks);
bool rem_itpm = itpm;
- u16 vendor = ioread16(chip->vendor.iobase + TPM_DID_VID(0));
+ u16 vendor = ioread16(priv->iobase + TPM_DID_VID(0));
/* probe only iTPMS */
if (vendor != TPM_VID_INTEL)
@@ -548,7 +563,7 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
u32 interrupt;
int i;
- interrupt = ioread32(chip->vendor.iobase +
+ interrupt = ioread32(priv->iobase +
TPM_INT_STATUS(chip->vendor.locality));
if (interrupt == 0)
@@ -568,9 +583,9 @@ static irqreturn_t tis_int_handler(int dummy, void *dev_id)
/* Clear interrupts handled with TPM_EOI */
iowrite32(interrupt,
- chip->vendor.iobase +
+ priv->iobase +
TPM_INT_STATUS(chip->vendor.locality));
- ioread32(chip->vendor.iobase + TPM_INT_STATUS(chip->vendor.locality));
+ ioread32(priv->iobase + TPM_INT_STATUS(chip->vendor.locality));
return IRQ_HANDLED;
}
@@ -592,19 +607,19 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
}
chip->vendor.irq = irq;
- original_int_vec = ioread8(chip->vendor.iobase +
+ original_int_vec = ioread8(priv->iobase +
TPM_INT_VECTOR(chip->vendor.locality));
iowrite8(irq,
- chip->vendor.iobase + TPM_INT_VECTOR(chip->vendor.locality));
+ priv->iobase + TPM_INT_VECTOR(chip->vendor.locality));
/* Clear all existing */
- iowrite32(ioread32(chip->vendor.iobase +
+ iowrite32(ioread32(priv->iobase +
TPM_INT_STATUS(chip->vendor.locality)),
- chip->vendor.iobase + TPM_INT_STATUS(chip->vendor.locality));
+ priv->iobase + TPM_INT_STATUS(chip->vendor.locality));
/* Turn on */
iowrite32(intmask | TPM_GLOBAL_INT_ENABLE,
- chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
+ priv->iobase + TPM_INT_ENABLE(chip->vendor.locality));
priv->irq_tested = false;
@@ -621,8 +636,7 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
*/
if (!chip->vendor.irq) {
iowrite8(original_int_vec,
- chip->vendor.iobase +
- TPM_INT_VECTOR(chip->vendor.locality));
+ priv->iobase + TPM_INT_VECTOR(chip->vendor.locality));
return 1;
}
@@ -635,10 +649,11 @@ static int tpm_tis_probe_irq_single(struct tpm_chip *chip, u32 intmask,
*/
static void tpm_tis_probe_irq(struct tpm_chip *chip, u32 intmask)
{
+ struct priv_data *priv = chip->vendor.priv;
u8 original_int_vec;
int i;
- original_int_vec = ioread8(chip->vendor.iobase +
+ original_int_vec = ioread8(priv->iobase +
TPM_INT_VECTOR(chip->vendor.locality));
if (!original_int_vec) {
@@ -658,7 +673,8 @@ MODULE_PARM_DESC(interrupts, "Enable interrupts");
static void tpm_tis_remove(struct tpm_chip *chip)
{
- void __iomem *reg = chip->vendor.iobase +
+ struct priv_data *priv = chip->vendor.priv;
+ void __iomem *reg = priv->iobase +
TPM_INT_ENABLE(chip->vendor.locality);
iowrite32(~TPM_GLOBAL_INT_ENABLE & ioread32(reg), reg);
@@ -686,9 +702,9 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
chip->acpi_dev_handle = acpi_dev_handle;
#endif
- chip->vendor.iobase = devm_ioremap_resource(dev, &tpm_info->res);
- if (IS_ERR(chip->vendor.iobase))
- return PTR_ERR(chip->vendor.iobase);
+ priv->iobase = devm_ioremap_resource(dev, &tpm_info->res);
+ if (IS_ERR(priv->iobase))
+ return PTR_ERR(priv->iobase);
/* Maximum timeouts */
chip->vendor.timeout_a = TIS_TIMEOUT_A_MAX;
@@ -702,13 +718,13 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
}
/* Take control of the TPM's interrupt hardware and shut it off */
- intmask = ioread32(chip->vendor.iobase +
+ intmask = ioread32(priv->iobase +
TPM_INT_ENABLE(chip->vendor.locality));
intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT |
TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT;
intmask &= ~TPM_GLOBAL_INT_ENABLE;
iowrite32(intmask,
- chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
+ priv->iobase + TPM_INT_ENABLE(chip->vendor.locality));
if (request_locality(chip, 0) != 0) {
rc = -ENODEV;
@@ -719,12 +735,12 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
if (rc)
goto out_err;
- vendor = ioread32(chip->vendor.iobase + TPM_DID_VID(0));
+ vendor = ioread32(priv->iobase + TPM_DID_VID(0));
priv->manufacturer_id = vendor;
dev_info(dev, "%s TPM (device-id 0x%X, rev-id %d)\n",
(chip->flags & TPM_CHIP_FLAG_TPM2) ? "2.0" : "1.2",
- vendor >> 16, ioread8(chip->vendor.iobase + TPM_RID(0)));
+ vendor >> 16, ioread8(priv->iobase + TPM_RID(0)));
if (!itpm) {
probe = probe_itpm(chip);
@@ -741,7 +757,7 @@ static int tpm_tis_init(struct device *dev, struct tpm_info *tpm_info,
/* Figure out the capabilities */
intfcaps =
- ioread32(chip->vendor.iobase +
+ ioread32(priv->iobase +
TPM_INTF_CAPS(chip->vendor.locality));
dev_dbg(dev, "TPM interface capabilities (0x%x):\n",
intfcaps);
@@ -820,23 +836,23 @@ out_err:
#ifdef CONFIG_PM_SLEEP
static void tpm_tis_reenable_interrupts(struct tpm_chip *chip)
{
+ struct priv_data *priv = chip->vendor.priv;
u32 intmask;
/* reenable interrupts that device may have lost or
BIOS/firmware may have disabled */
- iowrite8(chip->vendor.irq, chip->vendor.iobase +
+ iowrite8(chip->vendor.irq, priv->iobase +
TPM_INT_VECTOR(chip->vendor.locality));
intmask =
- ioread32(chip->vendor.iobase +
- TPM_INT_ENABLE(chip->vendor.locality));
+ ioread32(priv->iobase + TPM_INT_ENABLE(chip->vendor.locality));
intmask |= TPM_INTF_CMD_READY_INT
| TPM_INTF_LOCALITY_CHANGE_INT | TPM_INTF_DATA_AVAIL_INT
| TPM_INTF_STS_VALID_INT | TPM_GLOBAL_INT_ENABLE;
iowrite32(intmask,
- chip->vendor.iobase + TPM_INT_ENABLE(chip->vendor.locality));
+ priv->iobase + TPM_INT_ENABLE(chip->vendor.locality));
}
static int tpm_tis_resume(struct device *dev)
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 13:46:35 +0100