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[v3,16/27] Mips/MSI: Save msi chip in pci sysdata

Message ID 1413342435-7876-17-git-send-email-wangyijing@huawei.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yijing Wang Oct. 15, 2014, 3:07 a.m. UTC
Save msi chip in pci sysdata, add arch pci_find_msi_chip()
to extract out msi chip.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
---
 arch/mips/include/asm/pci.h |   14 ++++++++++++++
 1 files changed, 14 insertions(+), 0 deletions(-)

Comments

Ralf Baechle Oct. 25, 2014, 1:04 p.m. UTC | #1
On Wed, Oct 15, 2014 at 11:07:04AM +0800, Yijing Wang wrote:

> +static inline struct msi_chip *pci_msi_chip(struct pci_bus *bus)
> +{
> +	struct pci_controller *control = (struct pci_controller *)bus->sysdata;

bus->sysdata is void * so this cast is unnecessary.

  Ralf
Yijing Wang Oct. 27, 2014, 1:06 a.m. UTC | #2
On 2014/10/25 21:04, Ralf Baechle wrote:
> On Wed, Oct 15, 2014 at 11:07:04AM +0800, Yijing Wang wrote:
> 
>> +static inline struct msi_chip *pci_msi_chip(struct pci_bus *bus)
>> +{
>> +	struct pci_controller *control = (struct pci_controller *)bus->sysdata;
> 
> bus->sysdata is void * so this cast is unnecessary.

Yes, will update it, thanks!

> 
>   Ralf
> 
> .
>
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Patch

diff --git a/arch/mips/include/asm/pci.h b/arch/mips/include/asm/pci.h
index 974b0e3..287661b 100644
--- a/arch/mips/include/asm/pci.h
+++ b/arch/mips/include/asm/pci.h
@@ -43,6 +43,9 @@  struct pci_controller {
 
 	int iommu;
 
+#ifdef CONFIG_PCI_MSI
+	struct msi_chip *msi_chip;
+#endif
 	/* Optional access methods for reading/writing the bus number
 	   of the PCI controller */
 	int (*get_busno)(void);
@@ -54,6 +57,17 @@  struct pci_controller {
  */
 extern void register_pci_controller(struct pci_controller *hose);
 
+#ifdef CONFIG_PCI_MSI
+
+static inline struct msi_chip *pci_msi_chip(struct pci_bus *bus)
+{
+	struct pci_controller *control = (struct pci_controller *)bus->sysdata;
+
+	return control->msi_chip;
+}
+
+#endif
+
 /*
  * board supplied pci irq fixup routine
  */