From: konrad.wilk@oracle.com (Konrad Rzeszutek Wilk)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv6 2/8] dma-debug: add support for resource mappings
Date: Tue, 17 May 2016 10:50:02 -0400 [thread overview]
Message-ID: <20160517145002.GD4074@char.us.oracle.com> (raw)
In-Reply-To: <1462812247-3414-3-git-send-email-niklas.soderlund+renesas@ragnatech.se>
> +void debug_dma_map_resource(struct device *dev, phys_addr_t addr, size_t size,
> + int direction, dma_addr_t dma_addr)
> +{
> + struct dma_debug_entry *entry;
> +
> + if (unlikely(dma_debug_disabled()))
> + return;
> +
> + entry = dma_entry_alloc();
> + if (!entry)
> + return;
> +
> + entry->type = dma_debug_resource;
> + entry->dev = dev;
> + entry->pfn = __phys_to_pfn(addr);
> + entry->offset = addr - PHYS_PFN(entry->pfn);
Is that right?
__phys_to_pfn(addr) is PHYS_PFN(addr), so what you get here is
addr - PHYS_PFN(PHYS_PFN(addr)) ?
> + entry->size = size;
> + entry->dev_addr = dma_addr;
> + entry->direction = direction;
> + entry->map_err_type = MAP_ERR_NOT_CHECKED;
> +
> + add_dma_entry(entry);
> +}
> +EXPORT_SYMBOL(debug_dma_map_resource);
> +
next prev parent reply other threads:[~2016-05-17 14:50 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 16:43 [PATCHv6 0/8] dmaengine: rcar-dmac: add iommu support for slave transfers Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 1/8] dma-mapping: add {map,unmap}_resource to dma_map_ops Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 2/8] dma-debug: add support for resource mappings Niklas Söderlund
2016-05-17 14:50 ` Konrad Rzeszutek Wilk [this message]
2016-05-19 11:21 ` Niklas Söderlund
2016-05-19 11:42 ` Robin Murphy
2016-05-09 16:44 ` [PATCHv6 3/8] dma-mapping: add dma_{map,unmap}_resource Niklas Söderlund
2016-05-17 14:54 ` Konrad Rzeszutek Wilk
2016-05-19 11:29 ` Niklas Söderlund
2016-05-19 14:22 ` Konrad Rzeszutek Wilk
2016-05-09 16:44 ` [PATCHv6 4/8] arm: dma-mapping: add {map, unmap}_resource for iommu ops Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 5/8] dmaengine: rcar-dmac: group slave configuration Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 6/8] dmaengine: rcar-dmac: add iommu support for slave transfers Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 7/8] ARM: dts: r8a7790: add iommus to dmac0 and dmac1 Niklas Söderlund
2016-05-09 16:44 ` [PATCHv6 8/8] ARM: dts: r8a7791: " Niklas Söderlund
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