From: Kishon Vijay Abraham I <kishon@ti.com> To: Tom Joseph <tjoseph@cadence.com>, Bjorn Helgaas <bhelgaas@google.com>, Rob Herring <robh+dt@kernel.org>, Kishon Vijay Abraham I <kishon@ti.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, <linux-pci@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org> Subject: [PATCH v8 03/15] linux/kernel.h: Add PTR_ALIGN_DOWN macro Date: Wed, 22 Jul 2020 16:33:05 +0530 [thread overview] Message-ID: <20200722110317.4744-4-kishon@ti.com> (raw) In-Reply-To: <20200722110317.4744-1-kishon@ti.com> Add a macro for aligning down a pointer. This is useful to get an aligned register address when a device allows only word access and doesn't allow half word or byte access. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 82d91547d122..7339a00c895e 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -34,6 +34,7 @@ #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) #define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask)) #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) +#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a))) #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) /* generic data direction definitions */ -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Kishon Vijay Abraham I <kishon@ti.com> To: Tom Joseph <tjoseph@cadence.com>, Bjorn Helgaas <bhelgaas@google.com>, Rob Herring <robh+dt@kernel.org>, Kishon Vijay Abraham I <kishon@ti.com>, Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>, Arnd Bergmann <arnd@arndb.de> Cc: devicetree@vger.kernel.org, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, linux-omap@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [PATCH v8 03/15] linux/kernel.h: Add PTR_ALIGN_DOWN macro Date: Wed, 22 Jul 2020 16:33:05 +0530 [thread overview] Message-ID: <20200722110317.4744-4-kishon@ti.com> (raw) In-Reply-To: <20200722110317.4744-1-kishon@ti.com> Add a macro for aligning down a pointer. This is useful to get an aligned register address when a device allows only word access and doesn't allow half word or byte access. Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- include/linux/kernel.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 82d91547d122..7339a00c895e 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -34,6 +34,7 @@ #define ALIGN_DOWN(x, a) __ALIGN_KERNEL((x) - ((a) - 1), (a)) #define __ALIGN_MASK(x, mask) __ALIGN_KERNEL_MASK((x), (mask)) #define PTR_ALIGN(p, a) ((typeof(p))ALIGN((unsigned long)(p), (a))) +#define PTR_ALIGN_DOWN(p, a) ((typeof(p))ALIGN_DOWN((unsigned long)(p), (a))) #define IS_ALIGNED(x, a) (((x) & ((typeof(x))(a) - 1)) == 0) /* generic data direction definitions */ -- 2.17.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-07-22 11:03 UTC|newest] Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-22 11:03 [PATCH v8 00/15] Add PCIe support to TI's J721E SoC Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 01/15] PCI: cadence: Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 01/15] PCI: cadence: Use "dma-ranges" instead of "cdns, no-bar-match-nbits" property Kishon Vijay Abraham I 2020-07-22 11:45 ` [PATCH v8 01/15] PCI: cadence: Use "dma-ranges" instead of "cdns,no-bar-match-nbits" property Lorenzo Pieralisi 2020-07-22 11:45 ` Lorenzo Pieralisi 2020-07-22 22:30 ` Rob Herring 2020-07-22 22:30 ` Rob Herring 2020-07-22 11:03 ` [PATCH v8 02/15] PCI: cadence: Fix cdns_pcie_{host|ep}_setup() error path Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I [this message] 2020-07-22 11:03 ` [PATCH v8 03/15] linux/kernel.h: Add PTR_ALIGN_DOWN macro Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 04/15] PCI: cadence: Convert all r/w accessors to perform only 32-bit accesses Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 05/15] PCI: cadence: Add support to start link and verify link status Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 06/15] PCI: cadence: Allow pci_host_bridge to have custom pci_ops Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 07/15] dt-bindings: PCI: cadence: Remove "mem" from reg binding Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 08/15] PCI: cadence: Add new *ops* for CPU addr fixup Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 09/15] PCI: cadence: Fix updating Vendor ID and Subsystem Vendor ID register Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 10/15] PCI: cadence: Add MSI-X support to Endpoint driver Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 11/15] dt-bindings: PCI: Add host mode dt-bindings for TI's J721E SoC Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 12/15] dt-bindings: PCI: Add EP " Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 13/15] PCI: j721e: Add TI J721E PCIe driver Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 14/15] misc: pci_endpoint_test: Add J721E in pci_device_id table Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-22 11:03 ` [PATCH v8 15/15] MAINTAINERS: Add Kishon Vijay Abraham I for TI J721E SoC PCIe Kishon Vijay Abraham I 2020-07-22 11:03 ` Kishon Vijay Abraham I 2020-07-23 10:02 ` [PATCH v8 00/15] Add PCIe support to TI's J721E SoC Lorenzo Pieralisi 2020-07-23 10:02 ` Lorenzo Pieralisi 2020-07-23 10:12 ` Kishon Vijay Abraham I 2020-07-23 10:12 ` Kishon Vijay Abraham I
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