On Wed, Jun 20, 2012 at 9:26 AM, Alex Deucher wrote:
> On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
>> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
>>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>>> ? ?doesn't support DMA address above 4GB).
>>> 2,
On Wed, Jun 20, 2012 at 2:38 PM, Lucas Stach wrote:
> Am Mittwoch, den 20.06.2012, 14:12 +0800 schrieb Huacai Chen:
>> On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
>> > Hello Huacai,
>> >
>> > Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
>> >> 1, Use 32-bit DMA as a workar
On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> ? ?doesn't support DMA address above 4GB).
>
> This is a bug of your platform/CPU and s
On Wed, Jun 20, 2012 at 4:28 AM, Huacai Chen wrote:
> On Wed, Jun 20, 2012 at 9:26 AM, Alex Deucher
> wrote:
>> On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
>>> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
1, Use 32-bit DMA as a workaround (Loongson has a hardware bug t
On Wed, Jun 20, 2012 at 4:28 AM, Huacai Chen wrote:
> On Wed, Jun 20, 2012 at 9:26 AM, Alex Deucher wrote:
>> On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
>>> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that
Am Mittwoch, den 20.06.2012, 14:12 +0800 schrieb Huacai Chen:
> On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
> > Hello Huacai,
> >
> > Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> >> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
> >>doesn't su
On Wed, Jun 20, 2012 at 9:26 AM, Alex Deucher wrote:
> On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
>> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
>>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>>> doesn't support DMA address above 4GB).
>>> 2,
On Wed, Jun 20, 2012 at 2:38 PM, Lucas Stach wrote:
> Am Mittwoch, den 20.06.2012, 14:12 +0800 schrieb Huacai Chen:
>> On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
>> > Hello Huacai,
>> >
>> > Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
>> >> 1, Use 32-bit DMA as a workar
Am Mittwoch, den 20.06.2012, 14:12 +0800 schrieb Huacai Chen:
> On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
> > Hello Huacai,
> >
> > Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> >> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
> >>doesn't su
On Tue, Jun 19, 2012 at 3:19 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> doesn't support DMA address above 4GB).
>
> This is a bug of your platform/CPU and s
On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> ? ?doesn't support DMA address above 4GB).
>> 2, Read vga bios offered by system firmware.
>> 3, Handle io pr
Thanks, I'll follow your suggestions.
On Tue, Jun 19, 2012 at 3:56 PM, Michel D?nzer wrote:
> On Die, 2012-06-19 at 14:50 +0800, Huacai Chen wrote:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> ? ?doesn't support DMA address above 4GB).
>> 2, Read vga bios offered b
On Tue, Jun 19, 2012 at 9:57 AM, j.glisse wrote:
> On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> doesn't support DMA address above 4GB).
>> 2, Read vga bios offered by system firmware.
>> 3, Handle io pr
1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
doesn't support DMA address above 4GB).
2, Read vga bios offered by system firmware.
3, Handle io prot correctly for MIPS.
4, Don't use swiotlb on Loongson machines (when use swiotlb, GPU reset
occurs at resume from suspen
On Tue, Jun 19, 2012 at 09:19:55AM +0200, Lucas Stach wrote:
> Hello Huacai,
>
> Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> > 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
> >doesn't support DMA address above 4GB).
>
> This is a bug of your platfo
On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
> 2, Read vga bios offered by system firmware.
> 3, Handle io prot correctly for MIPS.
> 4, Don't use swiotlb on Loongso
On Die, 2012-06-19 at 14:50 +0800, Huacai Chen wrote:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
> 2, Read vga bios offered by system firmware.
> 3, Handle io prot correctly for MIPS.
> 4, Don't use swiotlb on Loongson mach
Hello Huacai,
Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
This is a bug of your platform/CPU and should be fixed at a lower level,
not in every driver. While rad
On Tue, Jun 19, 2012 at 09:19:55AM +0200, Lucas Stach wrote:
> Hello Huacai,
>
> Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> > 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
> >doesn't support DMA address above 4GB).
>
> This is a bug of your platfo
On Tue, Jun 19, 2012 at 02:50:20PM +0800, Huacai Chen wrote:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
> 2, Read vga bios offered by system firmware.
> 3, Handle io prot correctly for MIPS.
> 4, Don't use swiotlb on Loongso
Thanks, I'll follow your suggestions.
On Tue, Jun 19, 2012 at 3:56 PM, Michel Dänzer wrote:
> On Die, 2012-06-19 at 14:50 +0800, Huacai Chen wrote:
>> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>> doesn't support DMA address above 4GB).
>> 2, Read vga bios offered b
On Die, 2012-06-19 at 14:50 +0800, Huacai Chen wrote:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
> 2, Read vga bios offered by system firmware.
> 3, Handle io prot correctly for MIPS.
> 4, Don't use swiotlb on Loongson mach
Hello Huacai,
Am Dienstag, den 19.06.2012, 14:50 +0800 schrieb Huacai Chen:
> 1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
>doesn't support DMA address above 4GB).
This is a bug of your platform/CPU and should be fixed at a lower level,
not in every driver. While rad
1, Use 32-bit DMA as a workaround (Loongson has a hardware bug that it
doesn't support DMA address above 4GB).
2, Read vga bios offered by system firmware.
3, Handle io prot correctly for MIPS.
4, Don't use swiotlb on Loongson machines (when use swiotlb, GPU reset
occurs at resume from suspen
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