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From: Jim Quinlan <jim2101024@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Jim Quinlan <jim2101024@gmail.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Paul Burton <paul.burton@mips.com>,
	linux-arm-kernel@lists.infradead.org,
	bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org,
	Christoph Hellwig <hch@lst.de>
Subject: [PATCH v5 10/12] ARM64: declare __phys_to_dma on ARCH_HAS_PHYS_TO_DMA
Date: Wed, 19 Sep 2018 10:32:05 -0400	[thread overview]
Message-ID: <1537367527-20773-11-git-send-email-jim2101024@gmail.com> (raw)
In-Reply-To: <1537367527-20773-1-git-send-email-jim2101024@gmail.com>

This change allows one to define custom routines for __phys_to_dma()
and __dma_to_phys() for the ARM64 architecture by selecting
ARCH_HAS_PHYS_TO_DMA.  This is done for similar reasons that caused
arch/x86/include/asm/dma-direct.h to exist (see CONFIG_STA2X11).

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
---
 arch/arm64/include/asm/dma-direct.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 arch/arm64/include/asm/dma-direct.h

diff --git a/arch/arm64/include/asm/dma-direct.h b/arch/arm64/include/asm/dma-direct.h
new file mode 100644
index 0000000..d87da92
--- /dev/null
+++ b/arch/arm64/include/asm/dma-direct.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARM64_DMA_DIRECT_H
+#define _ARM64_DMA_DIRECT_H 1
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
+
+#endif /* _ARM64_DMA_DIRECT_H */
-- 
1.9.0.138.g2de3478


WARNING: multiple messages have this Message-ID (diff)
From: jim2101024@gmail.com (Jim Quinlan)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v5 10/12] ARM64: declare __phys_to_dma on ARCH_HAS_PHYS_TO_DMA
Date: Wed, 19 Sep 2018 10:32:05 -0400	[thread overview]
Message-ID: <1537367527-20773-11-git-send-email-jim2101024@gmail.com> (raw)
In-Reply-To: <1537367527-20773-1-git-send-email-jim2101024@gmail.com>

This change allows one to define custom routines for __phys_to_dma()
and __dma_to_phys() for the ARM64 architecture by selecting
ARCH_HAS_PHYS_TO_DMA.  This is done for similar reasons that caused
arch/x86/include/asm/dma-direct.h to exist (see CONFIG_STA2X11).

Signed-off-by: Jim Quinlan <jim2101024@gmail.com>
---
 arch/arm64/include/asm/dma-direct.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 arch/arm64/include/asm/dma-direct.h

diff --git a/arch/arm64/include/asm/dma-direct.h b/arch/arm64/include/asm/dma-direct.h
new file mode 100644
index 0000000..d87da92
--- /dev/null
+++ b/arch/arm64/include/asm/dma-direct.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARM64_DMA_DIRECT_H
+#define _ARM64_DMA_DIRECT_H 1
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	if (!dev->dma_mask)
+		return false;
+
+	return addr + size - 1 <= *dev->dma_mask;
+}
+
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr);
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t daddr);
+
+#endif /* _ARM64_DMA_DIRECT_H */
-- 
1.9.0.138.g2de3478

  parent reply	other threads:[~2018-09-19 14:33 UTC|newest]

Thread overview: 71+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-09-19 14:31 [PATCH v5 00/12] PCI: brcmstb: Add Broadcom Settopbox PCIe support (resend) Jim Quinlan
2018-09-19 14:31 ` [PATCH v5 01/12] soc: bcm: brcmstb: add memory API Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-19 14:31 ` [PATCH v5 02/12] dt-bindings: pci: add DT docs for Brcmstb PCIe device Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-20  9:06   ` Jonas Gorski
2018-09-20  9:06     ` Jonas Gorski
2018-09-20  9:06     ` Jonas Gorski
2018-09-21 18:00     ` Jim Quinlan
2018-09-21 18:00       ` Jim Quinlan
2018-09-21 18:00       ` Jim Quinlan
2018-09-19 14:31 ` [PATCH v5 03/12] PCI: brcmstb: add Broadcom STB PCIe host controller driver Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-19 14:31 ` [PATCH v5 04/12] PCI: brcmstb: add dma-range mapping for inbound traffic Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-19 14:31   ` Jim Quinlan
2018-09-20  2:19   ` Ard Biesheuvel
2018-09-20  2:19     ` Ard Biesheuvel
2018-09-20 20:55     ` Florian Fainelli
2018-09-20 20:55       ` Florian Fainelli
2018-09-20 21:04       ` Ard Biesheuvel
2018-09-20 21:04         ` Ard Biesheuvel
2018-09-20 21:31         ` Florian Fainelli
2018-09-20 21:31           ` Florian Fainelli
2018-09-20 21:33           ` Ard Biesheuvel
2018-09-20 21:33             ` Ard Biesheuvel
2018-09-20 21:39             ` Florian Fainelli
2018-09-20 21:39               ` Florian Fainelli
2018-09-21 17:40               ` Jim Quinlan
2018-09-21 17:40                 ` Jim Quinlan
2018-09-24  8:25                 ` Ard Biesheuvel
2018-09-24  8:25                   ` Ard Biesheuvel
2018-09-24 15:01                   ` Jim Quinlan
2018-09-24 15:01                     ` Jim Quinlan
2018-09-26  2:59                     ` Florian Fainelli
2018-09-26  2:59                       ` Florian Fainelli
2018-09-26  7:59                       ` Ard Biesheuvel
2018-09-26  7:59                         ` Ard Biesheuvel
2018-09-26 10:56                       ` Robin Murphy
2018-09-26 10:56                         ` Robin Murphy
2018-10-01 18:13                         ` Florian Fainelli
2018-10-01 18:13                           ` Florian Fainelli
2019-06-27 16:55                     ` Stefan Wahren
2019-06-27 16:55                       ` Stefan Wahren
2018-09-19 14:32 ` [PATCH v5 05/12] PCI: brcmstb: add MSI capability Jim Quinlan
2018-09-19 14:32   ` Jim Quinlan
2018-09-19 14:32 ` [PATCH v5 06/12] MIPS: BMIPS: add dma remap for BrcmSTB PCIe Jim Quinlan
2018-09-26 22:07   ` Paul Burton
2018-09-26 22:07     ` Paul Burton
2018-09-28 21:48     ` Jim Quinlan
2018-09-19 14:32 ` [PATCH v5 07/12] PCI/MSI: enable PCI_MSI_IRQ_DOMAIN support for MIPS Jim Quinlan
2018-09-19 14:32 ` [PATCH v5 08/12] MIPS: BMIPS: add PCI bindings for 7425, 7435 Jim Quinlan
2018-09-19 14:32 ` [PATCH v5 09/12] MIPS: BMIPS: enable PCI Jim Quinlan
2018-09-19 14:32 ` Jim Quinlan [this message]
2018-09-19 14:32   ` [PATCH v5 10/12] ARM64: declare __phys_to_dma on ARCH_HAS_PHYS_TO_DMA Jim Quinlan
2018-09-19 14:37   ` Christoph Hellwig
2018-09-19 14:37     ` Christoph Hellwig
2018-09-19 14:32 ` [PATCH v5 11/12] ARM64: add dma remap for BrcmSTB PCIe Jim Quinlan
2018-09-19 14:32   ` Jim Quinlan
2018-09-19 14:32   ` Jim Quinlan
2018-09-19 14:41   ` Christoph Hellwig
2018-09-19 14:41     ` Christoph Hellwig
2018-09-19 14:41     ` Christoph Hellwig
2018-09-21 18:29     ` Jim Quinlan
2018-09-21 18:29       ` Jim Quinlan
2018-09-19 14:32 ` [PATCH v5 12/12] ARM: " Jim Quinlan
2018-09-19 14:32   ` Jim Quinlan
2019-03-20 23:15 ` [PATCH v5 00/12] PCI: brcmstb: Add Broadcom Settopbox PCIe support (resend) Bjorn Helgaas
2019-03-20 23:22   ` Florian Fainelli
  -- strict thread matches above, loose matches on Subject: below --
2018-09-06 20:42 [PATCH v5 00/12] PCI: brcmstb: Add Broadcom Settopbox PCIe support Jim Quinlan
2018-09-06 20:42 ` [PATCH v5 10/12] ARM64: declare __phys_to_dma on ARCH_HAS_PHYS_TO_DMA Jim Quinlan

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