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| Started by | Anup Patel <anup.patel@broadcom.com> |
|---|---|
| First post | 2016-08-08 08:00 +0200 |
| Last post | 2016-08-08 08:00 +0200 |
| Articles | 1 — 1 participant |
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[PATCH RESEND v2 8/8] uio: Use new memtypes in uio_dmem_genirq Anup Patel <anup.patel@broadcom.com> - 2016-08-08 08:00 +0200
| From | Anup Patel <anup.patel@broadcom.com> |
|---|---|
| Date | 2016-08-08 08:00 +0200 |
| Subject | [PATCH RESEND v2 8/8] uio: Use new memtypes in uio_dmem_genirq |
| Message-ID | <s3LLr-5N8-1@gated-at.bofh.it> |
This patch extends uio_dmem_genirq driver to use recently added memtypes as follows: 1. Use UIO_MEM_DEVICE memtype for MEM resources 2. Use UIO_MEM_PHYS_CACHE memtype for dynamic regions when UIO DT node is marked as DMA coherent. Signed-off-by: Anup Patel <anup.patel@broadcom.com> --- drivers/uio/uio_dmem_genirq.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/drivers/uio/uio_dmem_genirq.c b/drivers/uio/uio_dmem_genirq.c index 1db2559..ce36afd 100644 --- a/drivers/uio/uio_dmem_genirq.c +++ b/drivers/uio/uio_dmem_genirq.c @@ -327,7 +327,7 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) break; } - uiomem->memtype = UIO_MEM_PHYS; + uiomem->memtype = UIO_MEM_DEVICE; uiomem->addr = r->start; uiomem->size = resource_size(r); ++uiomem; @@ -343,7 +343,12 @@ static int uio_dmem_genirq_probe(struct platform_device *pdev) " dynamic and fixed memory regions.\n"); break; } - uiomem->memtype = UIO_MEM_PHYS; + + if (pdev->dev.of_node && + of_dma_is_coherent(pdev->dev.of_node)) + uiomem->memtype = UIO_MEM_PHYS_CACHE; + else + uiomem->memtype = UIO_MEM_PHYS; uiomem->addr = DMEM_MAP_ERROR; uiomem->size = pdata->dynamic_region_sizes[i]; ++uiomem; -- 1.9.1
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