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authorDapeng Mi <dapeng1.mi@linux.intel.com>2026-09-17 09:52:33 +0800
committerIngo Molnar <mingo@kernel.org>2026-09-22 11:37:46 +0200
commit0102c8c7fdfc4bd700971daff2b94470f4eafae4 (patch)
tree531306c2299f9a269f0a986e29f17ba972180104 /rust/helpers/io.c
downloadlinux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.tar.gz
linux-stable-0102c8c7fdfc4bd700971daff2b94470f4eafae4.zip
perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rspgrafted
DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi <dapeng1.mi@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com
Diffstat (limited to 'rust/helpers/io.c')
-rw-r--r--rust/helpers/io.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/rust/helpers/io.c b/rust/helpers/io.c
new file mode 100644
index 000000000..308950aae
--- /dev/null
+++ b/rust/helpers/io.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/io.h>
+#include <linux/ioport.h>
+
+#ifdef CONFIG_HAS_IOMEM
+__rust_helper void __iomem *rust_helper_ioremap(phys_addr_t offset, size_t size)
+{
+ return ioremap(offset, size);
+}
+
+__rust_helper void __iomem *rust_helper_ioremap_np(phys_addr_t offset,
+ size_t size)
+{
+ return ioremap_np(offset, size);
+}
+
+__rust_helper void rust_helper_iounmap(void __iomem *addr)
+{
+ iounmap(addr);
+}
+#endif /* CONFIG_HAS_IOMEM */
+
+__rust_helper void rust_helper_memcpy_fromio(void *dst,
+ const volatile void __iomem *src,
+ size_t count)
+{
+ memcpy_fromio(dst, src, count);
+}
+
+__rust_helper void rust_helper_memcpy_toio(volatile void __iomem *dst,
+ const void *src, size_t count)
+{
+ memcpy_toio(dst, src, count);
+}
+
+__rust_helper u8 rust_helper_readb(const void __iomem *addr)
+{
+ return readb(addr);
+}
+
+__rust_helper u16 rust_helper_readw(const void __iomem *addr)
+{
+ return readw(addr);
+}
+
+__rust_helper u32 rust_helper_readl(const void __iomem *addr)
+{
+ return readl(addr);
+}
+
+#ifdef CONFIG_64BIT
+__rust_helper u64 rust_helper_readq(const void __iomem *addr)
+{
+ return readq(addr);
+}
+#endif
+
+__rust_helper void rust_helper_writeb(u8 value, void __iomem *addr)
+{
+ writeb(value, addr);
+}
+
+__rust_helper void rust_helper_writew(u16 value, void __iomem *addr)
+{
+ writew(value, addr);
+}
+
+__rust_helper void rust_helper_writel(u32 value, void __iomem *addr)
+{
+ writel(value, addr);
+}
+
+#ifdef CONFIG_64BIT
+__rust_helper void rust_helper_writeq(u64 value, void __iomem *addr)
+{
+ writeq(value, addr);
+}
+#endif
+
+__rust_helper u8 rust_helper_readb_relaxed(const void __iomem *addr)
+{
+ return readb_relaxed(addr);
+}
+
+__rust_helper u16 rust_helper_readw_relaxed(const void __iomem *addr)
+{
+ return readw_relaxed(addr);
+}
+
+__rust_helper u32 rust_helper_readl_relaxed(const void __iomem *addr)
+{
+ return readl_relaxed(addr);
+}
+
+#ifdef CONFIG_64BIT
+__rust_helper u64 rust_helper_readq_relaxed(const void __iomem *addr)
+{
+ return readq_relaxed(addr);
+}
+#endif
+
+__rust_helper void rust_helper_writeb_relaxed(u8 value, void __iomem *addr)
+{
+ writeb_relaxed(value, addr);
+}
+
+__rust_helper void rust_helper_writew_relaxed(u16 value, void __iomem *addr)
+{
+ writew_relaxed(value, addr);
+}
+
+__rust_helper void rust_helper_writel_relaxed(u32 value, void __iomem *addr)
+{
+ writel_relaxed(value, addr);
+}
+
+#ifdef CONFIG_64BIT
+__rust_helper void rust_helper_writeq_relaxed(u64 value, void __iomem *addr)
+{
+ writeq_relaxed(value, addr);
+}
+#endif
+
+__rust_helper resource_size_t rust_helper_resource_size(struct resource *res)
+{
+ return resource_size(res);
+}
+
+__rust_helper struct resource *
+rust_helper_request_mem_region(resource_size_t start, resource_size_t n,
+ const char *name)
+{
+ return request_mem_region(start, n, name);
+}
+
+__rust_helper void rust_helper_release_mem_region(resource_size_t start,
+ resource_size_t n)
+{
+ release_mem_region(start, n);
+}
+
+__rust_helper struct resource *rust_helper_request_region(resource_size_t start,
+ resource_size_t n,
+ const char *name)
+{
+ return request_region(start, n, name);
+}
+
+__rust_helper struct resource *
+rust_helper_request_muxed_region(resource_size_t start, resource_size_t n,
+ const char *name)
+{
+ return request_muxed_region(start, n, name);
+}
+
+__rust_helper void rust_helper_release_region(resource_size_t start,
+ resource_size_t n)
+{
+ release_region(start, n);
+}