Hi, Lucas, sorry for so long a delay because I have a holiday for one month.
I found Loongson-3 must turn on SWIOTLB if the system memory has
addresses above 4G. As I know, there are two ways to get a DMA addr,
the first way is use dma_alloc_coherent(), and the other one is use
map_page()/map_sg()
Hi, Lucas, sorry for so long a delay because I have a holiday for one month.
I found Loongson-3 must turn on SWIOTLB if the system memory has
addresses above 4G. As I know, there are two ways to get a DMA addr,
the first way is use dma_alloc_coherent(), and the other one is use
map_page()/map_sg()
On Fri, Jun 22, 2012 at 7:11 PM, Ralf Baechle wrote:
> On Fri, Jun 22, 2012 at 06:55:40PM +0800, Huacai Chen wrote:
>
>> > btw, would it be a good idea to use uncached accelerated instead ?
>> I have tried uncached accelerated, there will be random points in the
>> monitor, it seems a hw issue...
On Fri, Jun 22, 2012 at 5:39 PM, Arnaud Patard
wrote:
>
> Hi,
>
> Huacai Chen writes:
>
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>> ? ?when use swiotlb, GPU reset occurs at res
On Fri, Jun 22, 2012 at 7:11 PM, Ralf Baechle wrote:
> On Fri, Jun 22, 2012 at 06:55:40PM +0800, Huacai Chen wrote:
>
>> > btw, would it be a good idea to use uncached accelerated instead ?
>> I have tried uncached accelerated, there will be random points in the
>> monitor, it seems a hw issue...
On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>>
On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>>
On Fri, Jun 22, 2012 at 06:55:40PM +0800, Huacai Chen wrote:
> > btw, would it be a good idea to use uncached accelerated instead ?
> I have tried uncached accelerated, there will be random points in the
> monitor, it seems a hw issue...
Have you flushed the pages from memory before switching the
On Fri, Jun 22, 2012 at 11:39:19AM +0200, Arnaud Patard wrote:
> > --- a/drivers/gpu/drm/drm_vm.c
> > +++ b/drivers/gpu/drm/drm_vm.c
> > @@ -62,7 +62,7 @@ static pgprot_t drm_io_prot(uint32_t map_type, struct
> > vm_area_struct *vma)
> > tmp = pgprot_writecombine(tmp);
> > else
>
Hi,
Huacai Chen writes:
> 1, Handle io prot correctly for MIPS.
> 2, Define SAREA_MAX as the size of one page.
> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>when use swiotlb, GPU reset occurs at resume from suspend).
>
> Signed-off-by: Huacai Chen
> Signed-off-by
1, Handle io prot correctly for MIPS.
2, Define SAREA_MAX as the size of one page.
3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
when use swiotlb, GPU reset occurs at resume from suspend).
Signed-off-by: Huacai Chen
Signed-off-by: Hongliang Tao
Signed-off-by: Hua Yan
Hello Huacai,
On 22.06.2012 07:59, Huacai Chen wrote:
> On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
>> Hello Huacai,
>>
>> Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
[SNIP]
>>> Signed-off-by: Huacai Chen
>>> Signed-off-by: Hongliang Tao
>>> Signed-off-by: Hua Yan
>>> Re
Hello Huacai,
Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
> 1, Handle io prot correctly for MIPS.
> 2, Define SAREA_MAX as the size of one page.
> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>when use swiotlb, GPU reset occurs at resume from suspend).
On Fri, Jun 22, 2012 at 11:39:19AM +0200, Arnaud Patard wrote:
> > --- a/drivers/gpu/drm/drm_vm.c
> > +++ b/drivers/gpu/drm/drm_vm.c
> > @@ -62,7 +62,7 @@ static pgprot_t drm_io_prot(uint32_t map_type, struct
> > vm_area_struct *vma)
> > tmp = pgprot_writecombine(tmp);
> > else
>
On Fri, Jun 22, 2012 at 06:55:40PM +0800, Huacai Chen wrote:
> > btw, would it be a good idea to use uncached accelerated instead ?
> I have tried uncached accelerated, there will be random points in the
> monitor, it seems a hw issue...
Have you flushed the pages from memory before switching the
On Fri, Jun 22, 2012 at 5:39 PM, Arnaud Patard
wrote:
>
> Hi,
>
> Huacai Chen writes:
>
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>> when use swiotlb, GPU reset occurs at res
Hi,
Huacai Chen writes:
> 1, Handle io prot correctly for MIPS.
> 2, Define SAREA_MAX as the size of one page.
> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>when use swiotlb, GPU reset occurs at resume from suspend).
>
> Signed-off-by: Huacai Chen
> Signed-off-by
On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>>
Hello Huacai,
On 22.06.2012 07:59, Huacai Chen wrote:
On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
Hello Huacai,
Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
[SNIP]
Signed-off-by: Huacai Chen
Signed-off-by: Hongliang Tao
Signed-off-by: Hua Yan
Reviewed-by: Michel Dän
On Fri, Jun 22, 2012 at 1:25 PM, Lucas Stach wrote:
> Hello Huacai,
>
> Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
>> 1, Handle io prot correctly for MIPS.
>> 2, Define SAREA_MAX as the size of one page.
>> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>>
Hello Huacai,
Am Freitag, den 22.06.2012, 11:01 +0800 schrieb Huacai Chen:
> 1, Handle io prot correctly for MIPS.
> 2, Define SAREA_MAX as the size of one page.
> 3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
>when use swiotlb, GPU reset occurs at resume from suspend).
1, Handle io prot correctly for MIPS.
2, Define SAREA_MAX as the size of one page.
3, Don't use swiotlb on Loongson machines (Loonson need swioitlb, but
when use swiotlb, GPU reset occurs at resume from suspend).
Signed-off-by: Huacai Chen
Signed-off-by: Hongliang Tao
Signed-off-by: Hua Yan
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