| Message ID | 1458764240-24185-2-git-send-email-christophe-h.ricard@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Mar 23, 2016 at 09:17:16PM +0100, Christophe Ricard wrote: > Dropped the field 'iobase' from struct tpm_vendor_specific and migrated > it to the private structures of tpm_atmel and tpm_tis. > > Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Jason ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140
On Wed, Mar 23, 2016 at 09:17:16PM +0100, Christophe Ricard wrote: > Dropped the field 'iobase' from struct tpm_vendor_specific and migrated > it to the private structures of tpm_atmel and tpm_tis. > > Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> /Jarkko > --- > drivers/char/tpm/tpm.h | 2 - > drivers/char/tpm/tpm_atmel.c | 29 +++++++----- > drivers/char/tpm/tpm_tis.c | 104 +++++++++++++++++++++++++------------------ > 3 files changed, 78 insertions(+), 57 deletions(-) > > diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h > index 7317bec..0d1b7e6 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; > > struct list_head list; > diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c > index c6daf6c..242d6c6 100644 > --- a/drivers/char/tpm/tpm_atmel.c > +++ b/drivers/char/tpm/tpm_atmel.c > @@ -36,6 +36,7 @@ enum tpm_atmel_read_status { > }; > > struct tpm_atmel_priv { > + void __iomem *iobase; > unsigned long base; > int region_size; > int have_region; > @@ -43,6 +44,7 @@ struct tpm_atmel_priv { > > 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; > @@ -53,12 +55,12 @@ 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 */ > @@ -69,7 +71,7 @@ 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; > @@ -80,16 +82,16 @@ 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"); > @@ -101,12 +103,13 @@ 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; > @@ -114,12 +117,16 @@ 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) > @@ -148,7 +155,7 @@ 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); > } > } > @@ -196,6 +203,7 @@ 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; > @@ -206,7 +214,6 @@ 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_tis.c b/drivers/char/tpm/tpm_tis.c > index 068f021..19dac62 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) { > @@ -658,15 +673,16 @@ MODULE_PARM_DESC(interrupts, "Enable interrupts"); > > static void tpm_tis_remove(struct tpm_chip *chip) > { > + struct priv_data *priv = chip->vendor.priv; > + > if (chip->flags & TPM_CHIP_FLAG_TPM2) > tpm2_shutdown(chip, TPM2_SU_CLEAR); > > iowrite32(~TPM_GLOBAL_INT_ENABLE & > - ioread32(chip->vendor.iobase + > + ioread32(priv->iobase + > TPM_INT_ENABLE(chip->vendor. > locality)), > - chip->vendor.iobase + > - TPM_INT_ENABLE(chip->vendor.locality)); > + priv->iobase + TPM_INT_ENABLE(chip->vendor.locality)); > release_locality(chip, chip->vendor.locality, 1); > } > > @@ -691,9 +707,9 @@ 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; > @@ -707,13 +723,13 @@ 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; > @@ -724,12 +740,12 @@ 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); > @@ -746,7 +762,7 @@ 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); > @@ -825,23 +841,23 @@ 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) > -- > 2.5.0 > ------------------------------------------------------------------------------ Transform Data into Opportunity. Accelerate data analysis in your applications with Intel Data Analytics Acceleration Library. Click to learn more. http://pubads.g.doubleclick.net/gampad/clk?id=278785351&iu=/4140
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h index 7317bec..0d1b7e6 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; struct list_head list; diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c index c6daf6c..242d6c6 100644 --- a/drivers/char/tpm/tpm_atmel.c +++ b/drivers/char/tpm/tpm_atmel.c @@ -36,6 +36,7 @@ enum tpm_atmel_read_status { }; struct tpm_atmel_priv { + void __iomem *iobase; unsigned long base; int region_size; int have_region; @@ -43,6 +44,7 @@ struct tpm_atmel_priv { 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; @@ -53,12 +55,12 @@ 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 */ @@ -69,7 +71,7 @@ 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; @@ -80,16 +82,16 @@ 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"); @@ -101,12 +103,13 @@ 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; @@ -114,12 +117,16 @@ 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) @@ -148,7 +155,7 @@ 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); } } @@ -196,6 +203,7 @@ 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; @@ -206,7 +214,6 @@ 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_tis.c b/drivers/char/tpm/tpm_tis.c index 068f021..19dac62 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) { @@ -658,15 +673,16 @@ MODULE_PARM_DESC(interrupts, "Enable interrupts"); static void tpm_tis_remove(struct tpm_chip *chip) { + struct priv_data *priv = chip->vendor.priv; + if (chip->flags & TPM_CHIP_FLAG_TPM2) tpm2_shutdown(chip, TPM2_SU_CLEAR); iowrite32(~TPM_GLOBAL_INT_ENABLE & - ioread32(chip->vendor.iobase + + ioread32(priv->iobase + TPM_INT_ENABLE(chip->vendor. locality)), - chip->vendor.iobase + - TPM_INT_ENABLE(chip->vendor.locality)); + priv->iobase + TPM_INT_ENABLE(chip->vendor.locality)); release_locality(chip, chip->vendor.locality, 1); } @@ -691,9 +707,9 @@ 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; @@ -707,13 +723,13 @@ 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; @@ -724,12 +740,12 @@ 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); @@ -746,7 +762,7 @@ 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); @@ -825,23 +841,23 @@ 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)
Dropped the field 'iobase' from struct tpm_vendor_specific and migrated it to the private structures of tpm_atmel and tpm_tis. Signed-off-by: Christophe Ricard <christophe-h.ricard@st.com> --- drivers/char/tpm/tpm.h | 2 - drivers/char/tpm/tpm_atmel.c | 29 +++++++----- drivers/char/tpm/tpm_tis.c | 104 +++++++++++++++++++++++++------------------ 3 files changed, 78 insertions(+), 57 deletions(-)