* [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class
@ 2014-08-01 14:51 Rostislav Lisovy
2014-08-03 13:16 ` Sasha Levin
0 siblings, 1 reply; 5+ messages in thread
From: Rostislav Lisovy @ 2014-08-01 14:51 UTC (permalink / raw)
To: linux-arm-kernel
Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
---
arch/arm/kernel/bios32.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 17a26c1..e511ad1 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -255,10 +255,9 @@ static void pci_fixup_it8152(struct pci_dev *dev)
{
int i;
/* fixup for ITE 8152 devices */
- /* FIXME: add defines for class 0x68000 and 0x80103 */
if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
- dev->class == 0x68000 ||
- dev->class == 0x80103) {
+ dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
+ dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
for (i = 0; i < PCI_NUM_RESOURCES; i++) {
dev->resource[i].start = 0;
dev->resource[i].end = 0;
--
1.7.10.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class
2014-08-01 14:51 [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class Rostislav Lisovy
@ 2014-08-03 13:16 ` Sasha Levin
2014-08-04 9:31 ` Rostislav Lisovy
0 siblings, 1 reply; 5+ messages in thread
From: Sasha Levin @ 2014-08-03 13:16 UTC (permalink / raw)
To: linux-arm-kernel
On 08/01/2014 10:51 AM, Rostislav Lisovy wrote:
> Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
> ---
> arch/arm/kernel/bios32.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
> index 17a26c1..e511ad1 100644
> --- a/arch/arm/kernel/bios32.c
> +++ b/arch/arm/kernel/bios32.c
> @@ -255,10 +255,9 @@ static void pci_fixup_it8152(struct pci_dev *dev)
> {
> int i;
> /* fixup for ITE 8152 devices */
> - /* FIXME: add defines for class 0x68000 and 0x80103 */
> if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
> - dev->class == 0x68000 ||
> - dev->class == 0x80103) {
> + dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
> + dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
> for (i = 0; i < PCI_NUM_RESOURCES; i++) {
> dev->resource[i].start = 0;
> dev->resource[i].end = 0;
>
Care to explain how your new code is equivalent to the old one?
Thanks,
Sasha
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class
2014-08-03 13:16 ` Sasha Levin
@ 2014-08-04 9:31 ` Rostislav Lisovy
2014-08-25 8:39 ` Rostislav Lisovy
0 siblings, 1 reply; 5+ messages in thread
From: Rostislav Lisovy @ 2014-08-04 9:31 UTC (permalink / raw)
To: linux-arm-kernel
On Sun, 2014-08-03 at 09:16 -0400, Sasha Levin wrote:
> > - /* FIXME: add defines for class 0x68000 and 0x80103 */
> > if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
> > - dev->class == 0x68000 ||
> > - dev->class == 0x80103) {
> > + dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
> > + dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
> > for (i = 0; i < PCI_NUM_RESOURCES; i++) {
> > dev->resource[i].start = 0;
> > dev->resource[i].end = 0;
> >
>
> Care to explain how your new code is equivalent to the old one?
The header file include/linux/pci_ids.h defines
#define PCI_CLASS_BRIDGE_OTHER 0x0680
#define PCI_CLASS_SYSTEM_DMA 0x0801
((struct pci_dev*)dev)->class
corresponds to the 3 bytes Class code in the PCI Configuration space
header -- 1B Base class, 1B Sub-class, 1B Reg-level interface.
In that case
(PCI_CLASS_BRIDGE_OTHER << 8)
is equivalent to 0x68000 (imagine the leading zero)
and
((PCI_CLASS_SYSTEM_DMA << 8) | 0x03))
is equivalent to 0x80103.
Best regards;
Rostislav
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class
2014-08-04 9:31 ` Rostislav Lisovy
@ 2014-08-25 8:39 ` Rostislav Lisovy
2014-08-25 9:02 ` Yijing Wang
0 siblings, 1 reply; 5+ messages in thread
From: Rostislav Lisovy @ 2014-08-25 8:39 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, 2014-08-04 at 11:31 +0200, Rostislav Lisovy wrote:
> On Sun, 2014-08-03 at 09:16 -0400, Sasha Levin wrote:
> > > - /* FIXME: add defines for class 0x68000 and 0x80103 */
> > > if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
> > > - dev->class == 0x68000 ||
> > > - dev->class == 0x80103) {
> > > + dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
> > > + dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
> > > for (i = 0; i < PCI_NUM_RESOURCES; i++) {
> > > dev->resource[i].start = 0;
> > > dev->resource[i].end = 0;
> > >
> >
> > Care to explain how your new code is equivalent to the old one?
>
> The header file include/linux/pci_ids.h defines
> #define PCI_CLASS_BRIDGE_OTHER 0x0680
> #define PCI_CLASS_SYSTEM_DMA 0x0801
>
> ((struct pci_dev*)dev)->class
> corresponds to the 3 bytes Class code in the PCI Configuration space
> header -- 1B Base class, 1B Sub-class, 1B Reg-level interface.
>
> In that case
> (PCI_CLASS_BRIDGE_OTHER << 8)
> is equivalent to 0x68000 (imagine the leading zero)
> and
> ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03))
> is equivalent to 0x80103.
>
Just a kind reminder in case anyone is interested in reviewing and
accepting the patch.
Best regards;
Rostislav Lisovy
^ permalink raw reply [flat|nested] 5+ messages in thread* [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class
2014-08-25 8:39 ` Rostislav Lisovy
@ 2014-08-25 9:02 ` Yijing Wang
0 siblings, 0 replies; 5+ messages in thread
From: Yijing Wang @ 2014-08-25 9:02 UTC (permalink / raw)
To: linux-arm-kernel
On 2014/8/25 16:39, Rostislav Lisovy wrote:
> On Mon, 2014-08-04 at 11:31 +0200, Rostislav Lisovy wrote:
>> On Sun, 2014-08-03 at 09:16 -0400, Sasha Levin wrote:
>>>> - /* FIXME: add defines for class 0x68000 and 0x80103 */
>>>> if ((dev->class >> 8) == PCI_CLASS_BRIDGE_HOST ||
>>>> - dev->class == 0x68000 ||
>>>> - dev->class == 0x80103) {
>>>> + dev->class == (PCI_CLASS_BRIDGE_OTHER << 8) ||
>>>> + dev->class == ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03)) {
>>>> for (i = 0; i < PCI_NUM_RESOURCES; i++) {
>>>> dev->resource[i].start = 0;
>>>> dev->resource[i].end = 0;
>>>>
>>>
>>> Care to explain how your new code is equivalent to the old one?
>>
>> The header file include/linux/pci_ids.h defines
>> #define PCI_CLASS_BRIDGE_OTHER 0x0680
>> #define PCI_CLASS_SYSTEM_DMA 0x0801
>>
>> ((struct pci_dev*)dev)->class
>> corresponds to the 3 bytes Class code in the PCI Configuration space
>> header -- 1B Base class, 1B Sub-class, 1B Reg-level interface.
>>
>> In that case
>> (PCI_CLASS_BRIDGE_OTHER << 8)
>> is equivalent to 0x68000 (imagine the leading zero)
>> and
>> ((PCI_CLASS_SYSTEM_DMA << 8) | 0x03))
>> is equivalent to 0x80103.
>>
>
> Just a kind reminder in case anyone is interested in reviewing and
> accepting the patch.
Reviewed-by : Yijing Wang <wangyijing@huawei.com>
>
> Best regards;
> Rostislav Lisovy
>
>
>
> .
>
--
Thanks!
Yijing
^ permalink raw reply [flat|nested] 5+ messages in thread
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2014-08-01 14:51 [PATCH] ARM: PCI: Use PCI_CLASS_* defines for PCI class Rostislav Lisovy
2014-08-03 13:16 ` Sasha Levin
2014-08-04 9:31 ` Rostislav Lisovy
2014-08-25 8:39 ` Rostislav Lisovy
2014-08-25 9:02 ` Yijing Wang
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