| Message ID | 04371bc36512076b7feee07f854e56b80675d953.1599141563.git.robin.murphy@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm/panfrost: Set DMA max segment size | expand |
On 03/09/2020 14:59, Robin Murphy wrote: > Since all we do with scatterlists is map them in the MMU, we don't have > any hardware constraints on how they're laid out. Let the DMA layer know > so it won't warn when DMA API debugging is enabled. > > Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Steven Price <steven.price@arm.com> > --- > drivers/gpu/drm/panfrost/panfrost_gpu.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c > index f2c1ddc41a9b..9a5c85a7d341 100644 > --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c > +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c > @@ -343,6 +343,7 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) > > dma_set_mask_and_coherent(pfdev->dev, > DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features))); > + dma_set_max_seg_size(pfdev->dev, UINT_MAX); > > irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu"); > if (irq <= 0) >
On 03/09/2020 14:59, Robin Murphy wrote: > Since all we do with scatterlists is map them in the MMU, we don't have > any hardware constraints on how they're laid out. Let the DMA layer know > so it won't warn when DMA API debugging is enabled. > > Signed-off-by: Robin Murphy <robin.murphy@arm.com> Applied to drm-misc-next Steve
diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c index f2c1ddc41a9b..9a5c85a7d341 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c @@ -343,6 +343,7 @@ int panfrost_gpu_init(struct panfrost_device *pfdev) dma_set_mask_and_coherent(pfdev->dev, DMA_BIT_MASK(FIELD_GET(0xff00, pfdev->features.mmu_features))); + dma_set_max_seg_size(pfdev->dev, UINT_MAX); irq = platform_get_irq_byname(to_platform_device(pfdev->dev), "gpu"); if (irq <= 0)
Since all we do with scatterlists is map them in the MMU, we don't have any hardware constraints on how they're laid out. Let the DMA layer know so it won't warn when DMA API debugging is enabled. Signed-off-by: Robin Murphy <robin.murphy@arm.com> --- drivers/gpu/drm/panfrost/panfrost_gpu.c | 1 + 1 file changed, 1 insertion(+)