diff mbox series

[v2,08/10] i2c:pm_smbus: Add the ability to force block transfer enable

Message ID 1534796770-10295-9-git-send-email-minyard@acm.org
State New
Headers show
Series [v2,01/10] i2c:pm_smbus: Clean up some style issues | expand

Commit Message

Corey Minyard Aug. 20, 2018, 8:26 p.m. UTC
From: Corey Minyard <cminyard@mvista.com>


The PIIX4 hardware has block transfer buffer always enabled in
the hardware, but the i801 does not.  Add a parameter to pm_smbus_init
to force on the block transfer so the PIIX4 handler can enable this
by default, as it was disabled by default before.

Signed-off-by: Corey Minyard <cminyard@mvista.com>

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
---
 hw/acpi/piix4.c           | 2 +-
 hw/i2c/pm_smbus.c         | 5 ++++-
 hw/i2c/smbus_ich9.c       | 2 +-
 hw/isa/vt82c686.c         | 2 +-
 include/hw/i2c/pm_smbus.h | 2 +-
 5 files changed, 8 insertions(+), 5 deletions(-)

-- 
2.7.4

Comments

Philippe Mathieu-Daudé Aug. 21, 2018, 6:27 a.m. UTC | #1
On 08/20/2018 05:26 PM, minyard@acm.org wrote:
> From: Corey Minyard <cminyard@mvista.com>

> 

> The PIIX4 hardware has block transfer buffer always enabled in

> the hardware, but the i801 does not.  Add a parameter to pm_smbus_init

> to force on the block transfer so the PIIX4 handler can enable this

> by default, as it was disabled by default before.

> 

> Signed-off-by: Corey Minyard <cminyard@mvista.com>


Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>


> Cc: Michael S. Tsirkin <mst@redhat.com>

> Cc: Paolo Bonzini <pbonzini@redhat.com>

> ---

>  hw/acpi/piix4.c           | 2 +-

>  hw/i2c/pm_smbus.c         | 5 ++++-

>  hw/i2c/smbus_ich9.c       | 2 +-

>  hw/isa/vt82c686.c         | 2 +-

>  include/hw/i2c/pm_smbus.h | 2 +-

>  5 files changed, 8 insertions(+), 5 deletions(-)

> 

> diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c

> index f8d8d2e..313305f 100644

> --- a/hw/acpi/piix4.c

> +++ b/hw/acpi/piix4.c

> @@ -513,7 +513,7 @@ static void piix4_pm_realize(PCIDevice *dev, Error **errp)

>      pci_conf[0x90] = s->smb_io_base | 1;

>      pci_conf[0x91] = s->smb_io_base >> 8;

>      pci_conf[0xd2] = 0x09;

> -    pm_smbus_init(DEVICE(dev), &s->smb);

> +    pm_smbus_init(DEVICE(dev), &s->smb, true);

>      memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);

>      memory_region_add_subregion(pci_address_space_io(dev),

>                                  s->smb_io_base, &s->smb.io);

> diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c

> index 10ba208..4d021bb 100644

> --- a/hw/i2c/pm_smbus.c

> +++ b/hw/i2c/pm_smbus.c

> @@ -422,11 +422,14 @@ const VMStateDescription pmsmb_vmstate = {

>      }

>  };

>  

> -void pm_smbus_init(DeviceState *parent, PMSMBus *smb)

> +void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk)

>  {

>      smb->op_done = true;

>      smb->reset = pm_smbus_reset;

>      smb->smbus = i2c_init_bus(parent, "i2c");

> +    if (force_aux_blk) {

> +        smb->smb_auxctl |= AUX_BLK;

> +    }

>      memory_region_init_io(&smb->io, OBJECT(parent), &pm_smbus_ops, smb,

>                            "pm-smbus", 64);

>  }

> diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c

> index 316c2a4..5860fc9 100644

> --- a/hw/i2c/smbus_ich9.c

> +++ b/hw/i2c/smbus_ich9.c

> @@ -88,7 +88,7 @@ static void ich9_smbus_realize(PCIDevice *d, Error **errp)

>      pci_set_byte(d->config + ICH9_SMB_HOSTC, 0);

>      /* TODO bar0, bar1: 64bit BAR support*/

>  

> -    pm_smbus_init(&d->qdev, &s->smb);

> +    pm_smbus_init(&d->qdev, &s->smb, false);

>      pci_register_bar(d, ICH9_SMB_SMB_BASE_BAR, PCI_BASE_ADDRESS_SPACE_IO,

>                       &s->smb.io);

>  }

> diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c

> index cff1946..7302f6d 100644

> --- a/hw/isa/vt82c686.c

> +++ b/hw/isa/vt82c686.c

> @@ -370,7 +370,7 @@ static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp)

>      pci_conf[0x90] = s->smb_io_base | 1;

>      pci_conf[0x91] = s->smb_io_base >> 8;

>      pci_conf[0xd2] = 0x90;

> -    pm_smbus_init(&s->dev.qdev, &s->smb);

> +    pm_smbus_init(&s->dev.qdev, &s->smb, false);

>      memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io);

>  

>      apm_init(dev, &s->apm, NULL, s);

> diff --git a/include/hw/i2c/pm_smbus.h b/include/hw/i2c/pm_smbus.h

> index cfe596f..471345e 100644

> --- a/include/hw/i2c/pm_smbus.h

> +++ b/include/hw/i2c/pm_smbus.h

> @@ -33,7 +33,7 @@ typedef struct PMSMBus {

>      bool op_done;

>  } PMSMBus;

>  

> -void pm_smbus_init(DeviceState *parent, PMSMBus *smb);

> +void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk);

>  

>  extern const VMStateDescription pmsmb_vmstate;

>  

>
diff mbox series

Patch

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index f8d8d2e..313305f 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -513,7 +513,7 @@  static void piix4_pm_realize(PCIDevice *dev, Error **errp)
     pci_conf[0x90] = s->smb_io_base | 1;
     pci_conf[0x91] = s->smb_io_base >> 8;
     pci_conf[0xd2] = 0x09;
-    pm_smbus_init(DEVICE(dev), &s->smb);
+    pm_smbus_init(DEVICE(dev), &s->smb, true);
     memory_region_set_enabled(&s->smb.io, pci_conf[0xd2] & 1);
     memory_region_add_subregion(pci_address_space_io(dev),
                                 s->smb_io_base, &s->smb.io);
diff --git a/hw/i2c/pm_smbus.c b/hw/i2c/pm_smbus.c
index 10ba208..4d021bb 100644
--- a/hw/i2c/pm_smbus.c
+++ b/hw/i2c/pm_smbus.c
@@ -422,11 +422,14 @@  const VMStateDescription pmsmb_vmstate = {
     }
 };
 
-void pm_smbus_init(DeviceState *parent, PMSMBus *smb)
+void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk)
 {
     smb->op_done = true;
     smb->reset = pm_smbus_reset;
     smb->smbus = i2c_init_bus(parent, "i2c");
+    if (force_aux_blk) {
+        smb->smb_auxctl |= AUX_BLK;
+    }
     memory_region_init_io(&smb->io, OBJECT(parent), &pm_smbus_ops, smb,
                           "pm-smbus", 64);
 }
diff --git a/hw/i2c/smbus_ich9.c b/hw/i2c/smbus_ich9.c
index 316c2a4..5860fc9 100644
--- a/hw/i2c/smbus_ich9.c
+++ b/hw/i2c/smbus_ich9.c
@@ -88,7 +88,7 @@  static void ich9_smbus_realize(PCIDevice *d, Error **errp)
     pci_set_byte(d->config + ICH9_SMB_HOSTC, 0);
     /* TODO bar0, bar1: 64bit BAR support*/
 
-    pm_smbus_init(&d->qdev, &s->smb);
+    pm_smbus_init(&d->qdev, &s->smb, false);
     pci_register_bar(d, ICH9_SMB_SMB_BASE_BAR, PCI_BASE_ADDRESS_SPACE_IO,
                      &s->smb.io);
 }
diff --git a/hw/isa/vt82c686.c b/hw/isa/vt82c686.c
index cff1946..7302f6d 100644
--- a/hw/isa/vt82c686.c
+++ b/hw/isa/vt82c686.c
@@ -370,7 +370,7 @@  static void vt82c686b_pm_realize(PCIDevice *dev, Error **errp)
     pci_conf[0x90] = s->smb_io_base | 1;
     pci_conf[0x91] = s->smb_io_base >> 8;
     pci_conf[0xd2] = 0x90;
-    pm_smbus_init(&s->dev.qdev, &s->smb);
+    pm_smbus_init(&s->dev.qdev, &s->smb, false);
     memory_region_add_subregion(get_system_io(), s->smb_io_base, &s->smb.io);
 
     apm_init(dev, &s->apm, NULL, s);
diff --git a/include/hw/i2c/pm_smbus.h b/include/hw/i2c/pm_smbus.h
index cfe596f..471345e 100644
--- a/include/hw/i2c/pm_smbus.h
+++ b/include/hw/i2c/pm_smbus.h
@@ -33,7 +33,7 @@  typedef struct PMSMBus {
     bool op_done;
 } PMSMBus;
 
-void pm_smbus_init(DeviceState *parent, PMSMBus *smb);
+void pm_smbus_init(DeviceState *parent, PMSMBus *smb, bool force_aux_blk);
 
 extern const VMStateDescription pmsmb_vmstate;