From: Lucas Stach <dev@lynxeye.de>
To: barebox@lists.infradead.org
Subject: [PATCH RFT 03/24] dma: add streaming DMA ops
Date: Thu, 12 Feb 2015 22:39:39 +0100 [thread overview]
Message-ID: <1423777200-22965-4-git-send-email-dev@lynxeye.de> (raw)
In-Reply-To: <1423777200-22965-1-git-send-email-dev@lynxeye.de>
This will allow us to implement cache maintenance in a platform
agnostic way.
Signed-off-by: Lucas Stach <dev@lynxeye.de>
---
include/dma-dir.h | 6 ++++++
include/dma.h | 11 +++++++++++
2 files changed, 17 insertions(+)
create mode 100644 include/dma-dir.h
diff --git a/include/dma-dir.h b/include/dma-dir.h
new file mode 100644
index 0000000..ba107f1
--- /dev/null
+++ b/include/dma-dir.h
@@ -0,0 +1,6 @@
+enum dma_data_direction {
+ DMA_BIDIRECTIONAL = 0,
+ DMA_TO_DEVICE = 1,
+ DMA_FROM_DEVICE = 2,
+ DMA_NONE = 3,
+};
diff --git a/include/dma.h b/include/dma.h
index 899f831..4274520 100644
--- a/include/dma.h
+++ b/include/dma.h
@@ -11,6 +11,7 @@
#include <malloc.h>
#include <xfuncs.h>
+#include <dma-dir.h>
#include <asm/dma.h>
#ifndef dma_alloc
@@ -27,4 +28,14 @@ static inline void dma_free(void *mem)
}
#endif
+/* streaming DMA - implement the below calls to support HAS_DMA */
+void dma_sync_single_for_cpu(unsigned long address, size_t size,
+ enum dma_data_direction dir);
+
+void dma_sync_single_for_device(unsigned long address, size_t size,
+ enum dma_data_direction dir);
+
+void *dma_alloc_coherent(size_t size);
+void dma_free_coherent(void *mem, size_t size);
+
#endif /* __DMA_H */
--
2.1.0
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next prev parent reply other threads:[~2015-02-12 21:40 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-12 21:39 [PATCH RFT 00/24] Phasing out direct usage of asm/mmu.h on ARM Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 01/24] usb: gadget: include common.h in header Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 02/24] ARM: move virt<->phys translation to io.h Lucas Stach
2015-02-12 21:39 ` Lucas Stach [this message]
2015-02-12 21:39 ` [PATCH RFT 04/24] ARM: move DMA alloc functions to dma.h Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 05/24] ARM: implement streaming DMA ops Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 06/24] AHCI: convert to " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 07/24] MCI: dw-mmc: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 08/24] MCI: imx: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 09/24] MCI: tegra-sdmmc: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 10/24] net: arc-emac: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 11/24] net: cpsw: " Lucas Stach
2015-02-13 19:44 ` Sascha Hauer
2015-02-12 21:39 ` [PATCH RFT 12/24] net: at91_ether: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 13/24] net: davinci_emac: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 14/24] net: designware: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 15/24] net: fec: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 16/24] net: macb: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 17/24] net: orion-gbe: " Lucas Stach
2015-02-12 22:40 ` Sebastian Hesselbarth
2015-02-16 10:45 ` Sebastian Hesselbarth
2015-02-12 21:39 ` [PATCH RFT 18/24] net: rtl8169: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 19/24] net: xgmac: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 20/24] usb: gadget: fsl_udc: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 21/24] usb: host: ehci: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 22/24] usb: host: ohci: " Lucas Stach
2015-02-12 21:39 ` [PATCH RFT 23/24] ARM: bcm2835: mbox: " Lucas Stach
2015-02-12 21:40 ` [PATCH RFT 24/24] ARM: MMU: unexport cache maintenance functions Lucas Stach
2015-02-13 19:48 ` [PATCH RFT 00/24] Phasing out direct usage of asm/mmu.h on ARM Sascha Hauer
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