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authorLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 12:30:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-26 12:30:36 -0700
commit0c855563182001c829065faa17f8e29e9ceffe13 (patch)
tree815628b2d1e9538915407c67e6c66c7f4ef8bed6 /lib
parent6b0fbc540c2fc34e55828ef9918cc61528071a01 (diff)
parentea96292838397682530ac77a429974f8ff5f2df3 (diff)
downloadlinux-0c855563182001c829065faa17f8e29e9ceffe13.tar.gz
Merge tag 'arm-apple-m1-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM Apple M1 platform support from Arnd Bergmann: "The Apple M1 is the processor used it all current generation Apple Macintosh computers. Support for this platform so far is rudimentary, but it boots and can use framebuffer and serial console over a special USB cable. Support for several essential on-chip devices (USB, PCIe, IOMMU, NVMe) is work in progress but was not ready in time. A very detailed description of what works is in the commit message of commit 1bb2fd3880d4 ("Merge tag 'm1-soc-bringup-v5' [..]") and on the AsahiLinux wiki" Link: https://lore.kernel.org/linux-arm-kernel/bdb18e9f-fcd7-1e31-2224-19c0e5090706@marcan.st/ * tag 'arm-apple-m1-5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: asm-generic/io.h: Unbork ioremap_np() declaration arm64: apple: Add initial Apple Mac mini (M1, 2020) devicetree dt-bindings: display: Add apple,simple-framebuffer arm64: Kconfig: Introduce CONFIG_ARCH_APPLE irqchip/apple-aic: Add support for the Apple Interrupt Controller dt-bindings: interrupt-controller: Add DT bindings for apple-aic arm64: Move ICH_ sysreg bits from arm-gic-v3.h to sysreg.h of/address: Add infrastructure to declare MMIO as non-posted asm-generic/io.h: implement pci_remap_cfgspace using ioremap_np arm64: Implement ioremap_np() to map MMIO as nGnRnE docs: driver-api: device-io: Document ioremap() variants & access funcs docs: driver-api: device-io: Document I/O access functions asm-generic/io.h: Add a non-posted variant of ioremap() arm64: arch_timer: Implement support for interrupt-names dt-bindings: timer: arm,arch_timer: Add interrupt-names support arm64: cputype: Add CPU implementor & types for the Apple M1 cores dt-bindings: arm: cpus: Add apple,firestorm & icestorm compatibles dt-bindings: arm: apple: Add bindings for Apple ARM platforms dt-bindings: vendor-prefixes: Add apple prefix
Diffstat (limited to 'lib')
-rw-r--r--lib/devres.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/devres.c b/lib/devres.c
index 2a4ff5d64288..4679dbb1bf5f 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -10,6 +10,7 @@ enum devm_ioremap_type {
DEVM_IOREMAP = 0,
DEVM_IOREMAP_UC,
DEVM_IOREMAP_WC,
+ DEVM_IOREMAP_NP,
};
void devm_ioremap_release(struct device *dev, void *res)
@@ -42,6 +43,9 @@ static void __iomem *__devm_ioremap(struct device *dev, resource_size_t offset,
case DEVM_IOREMAP_WC:
addr = ioremap_wc(offset, size);
break;
+ case DEVM_IOREMAP_NP:
+ addr = ioremap_np(offset, size);
+ break;
}
if (addr) {
@@ -99,6 +103,21 @@ void __iomem *devm_ioremap_wc(struct device *dev, resource_size_t offset,
EXPORT_SYMBOL(devm_ioremap_wc);
/**
+ * devm_ioremap_np - Managed ioremap_np()
+ * @dev: Generic device to remap IO address for
+ * @offset: Resource address to map
+ * @size: Size of map
+ *
+ * Managed ioremap_np(). Map is automatically unmapped on driver detach.
+ */
+void __iomem *devm_ioremap_np(struct device *dev, resource_size_t offset,
+ resource_size_t size)
+{
+ return __devm_ioremap(dev, offset, size, DEVM_IOREMAP_NP);
+}
+EXPORT_SYMBOL(devm_ioremap_np);
+
+/**
* devm_iounmap - Managed iounmap()
* @dev: Generic device to unmap for
* @addr: Address to unmap
@@ -128,6 +147,9 @@ __devm_ioremap_resource(struct device *dev, const struct resource *res,
return IOMEM_ERR_PTR(-EINVAL);
}
+ if (type == DEVM_IOREMAP && res->flags & IORESOURCE_MEM_NONPOSTED)
+ type = DEVM_IOREMAP_NP;
+
size = resource_size(res);
if (res->name)