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author | Yutang Jiang <yutang.jiang@nxp.com> | 2016-10-29 00:14:32 +0800 |
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committer | John Crispin <john@phrozen.org> | 2016-10-31 17:00:10 +0100 |
commit | c6c731fe311f7da42777ffd31804a4f6aa3f8e19 (patch) | |
tree | d92c7296f82d46d1b2da30933a97595f6cb8ad66 /target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch | |
parent | a34f96d6cf80c7c3c425076714d9c4caa67e3670 (diff) | |
download | mtk-20170518-c6c731fe311f7da42777ffd31804a4f6aa3f8e19.zip mtk-20170518-c6c731fe311f7da42777ffd31804a4f6aa3f8e19.tar.gz mtk-20170518-c6c731fe311f7da42777ffd31804a4f6aa3f8e19.tar.bz2 |
layerscape: add 64b/32b target for ls1043ardb device
Add support for NXP layerscape ls1043ardb 64b/32b Dev board.
LS1043a is an SoC with 4x64-bit up to 1.6 GHz ARMv8 A53 cores.
ls1043ardb support features as: 2GB DDR4, 128MB NOR/512MB NAND, USB3.0, eSDHC,
I2C, GPIO, PCIe/Mini-PCIe, 6x1G/1x10G network port, etc.
64b/32b ls1043ardb target is using 4.4 kernel, and rcw/u-boot/fman images from
NXP QorIQ SDK release.
All of 4.4 kernel patches porting from SDK release or upstream.
QorIQ SDK ISOs can be downloaded from this location:
http://www.nxp.com/products/software-and-tools/run-time-software/linux-sdk/linux-sdk-for-qoriq-processors:SDKLINUX
Signed-off-by: Yutang Jiang <yutang.jiang@nxp.com>
Diffstat (limited to 'target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch')
-rw-r--r-- | target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch b/target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch new file mode 100644 index 0000000..4962d4b --- /dev/null +++ b/target/linux/layerscape/patches-4.4/7018-devres-add-devm_alloc_percpu.patch @@ -0,0 +1,138 @@ +From f7792176d939e79b4f525114a95d0fd8266bef8e Mon Sep 17 00:00:00 2001 +From: Madalin Bucur <madalin.bucur@freescale.com> +Date: Wed, 19 Nov 2014 13:06:54 +0200 +Subject: [PATCH 18/70] devres: add devm_alloc_percpu() + +Introduce managed counterparts for alloc_percpu() and free_percpu(). +Add devm_alloc_percpu() and devm_free_percpu() into the managed +interfaces list. + +Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com> + +Change-Id: I93546348e7b0e1974fda8b6c7a3b3710ce45b724 +Reviewed-on: http://git.am.freescale.net:8181/24140 +Reviewed-by: Madalin-Cristian Bucur <madalin.bucur@freescale.com> +Tested-by: Madalin-Cristian Bucur <madalin.bucur@freescale.com> + +Conflicts: + Documentation/driver-model/devres.txt + drivers/base/devres.c + +Conflicts: + drivers/base/devres.c +--- + Documentation/driver-model/devres.txt | 4 +++ + drivers/base/devres.c | 63 +++++++++++++++++++++++++++++++++ + include/linux/device.h | 19 ++++++++++ + 3 files changed, 86 insertions(+) + +--- a/Documentation/driver-model/devres.txt ++++ b/Documentation/driver-model/devres.txt +@@ -321,6 +321,10 @@ PHY + devm_usb_get_phy() + devm_usb_put_phy() + ++PER-CPU MEM ++ devm_alloc_percpu() ++ devm_free_percpu() ++ + PINCTRL + devm_pinctrl_get() + devm_pinctrl_put() +--- a/drivers/base/devres.c ++++ b/drivers/base/devres.c +@@ -985,3 +985,66 @@ void devm_free_pages(struct device *dev, + &devres)); + } + EXPORT_SYMBOL_GPL(devm_free_pages); ++ ++static void devm_percpu_release(struct device *dev, void *pdata) ++{ ++ void __percpu *p; ++ ++ p = *(void __percpu **)pdata; ++ free_percpu(p); ++} ++ ++static int devm_percpu_match(struct device *dev, void *data, void *p) ++{ ++ struct devres *devr = container_of(data, struct devres, data); ++ ++ return *(void **)devr->data == p; ++} ++ ++/** ++ * __devm_alloc_percpu - Resource-managed alloc_percpu ++ * @dev: Device to allocate per-cpu memory for ++ * @size: Size of per-cpu memory to allocate ++ * @align: Alignement of per-cpu memory to allocate ++ * ++ * Managed alloc_percpu. Per-cpu memory allocated with this function is ++ * automatically freed on driver detach. ++ * ++ * RETURNS: ++ * Pointer to allocated memory on success, NULL on failure. ++ */ ++void __percpu *__devm_alloc_percpu(struct device *dev, size_t size, ++ size_t align) ++{ ++ void *p; ++ void __percpu *pcpu; ++ ++ pcpu = __alloc_percpu(size, align); ++ if (!pcpu) ++ return NULL; ++ ++ p = devres_alloc(devm_percpu_release, sizeof(void *), GFP_KERNEL); ++ if (!p) ++ return NULL; ++ ++ *(void __percpu **)p = pcpu; ++ ++ devres_add(dev, p); ++ ++ return pcpu; ++} ++EXPORT_SYMBOL_GPL(__devm_alloc_percpu); ++ ++/** ++ * devm_free_percpu - Resource-managed free_percpu ++ * @dev: Device this memory belongs to ++ * @pdata: Per-cpu memory to free ++ * ++ * Free memory allocated with devm_alloc_percpu(). ++ */ ++void devm_free_percpu(struct device *dev, void __percpu *pdata) ++{ ++ WARN_ON(devres_destroy(dev, devm_percpu_release, devm_percpu_match, ++ (void *)pdata)); ++} ++EXPORT_SYMBOL_GPL(devm_free_percpu); +--- a/include/linux/device.h ++++ b/include/linux/device.h +@@ -681,6 +681,25 @@ void __iomem *devm_ioremap_resource(stru + int devm_add_action(struct device *dev, void (*action)(void *), void *data); + void devm_remove_action(struct device *dev, void (*action)(void *), void *data); + ++/** ++ * devm_alloc_percpu - Resource-managed alloc_percpu ++ * @dev: Device to allocate per-cpu memory for ++ * @type: Type to allocate per-cpu memory for ++ * ++ * Managed alloc_percpu. Per-cpu memory allocated with this function is ++ * automatically freed on driver detach. ++ * ++ * RETURNS: ++ * Pointer to allocated memory on success, NULL on failure. ++ */ ++#define devm_alloc_percpu(dev, type) \ ++ (typeof(type) __percpu *)__devm_alloc_percpu(dev, sizeof(type), \ ++ __alignof__(type)) ++ ++void __percpu *__devm_alloc_percpu(struct device *dev, size_t size, ++ size_t align); ++void devm_free_percpu(struct device *dev, void __percpu *pdata); ++ + struct device_dma_parameters { + /* + * a low level driver may set these to teach IOMMU code about |