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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 10:46:44 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-22 10:46:44 -0800
commitca78d3173cff3503bcd15723b049757f75762d15 (patch)
tree8e5db7a3adbe3bcd3b08e6983a6e0f6becb0aaa0 /include
parenta4ee7bacd6c08479d56738456c07e4f32fc8e523 (diff)
parentffe7afd1713558d73483834c2e2d03a1e39a4062 (diff)
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon: - Errata workarounds for Qualcomm's Falkor CPU - Qualcomm L2 Cache PMU driver - Qualcomm SMCCC firmware quirk - Support for DEBUG_VIRTUAL - CPU feature detection for userspace via MRS emulation - Preliminary work for the Statistical Profiling Extension - Misc cleanups and non-critical fixes * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (74 commits) arm64/kprobes: consistently handle MRS/MSR with XZR arm64: cpufeature: correctly handle MRS to XZR arm64: traps: correctly handle MRS/MSR with XZR arm64: ptrace: add XZR-safe regs accessors arm64: include asm/assembler.h in entry-ftrace.S arm64: fix warning about swapper_pg_dir overflow arm64: Work around Falkor erratum 1003 arm64: head.S: Enable EL1 (host) access to SPE when entered at EL2 arm64: arch_timer: document Hisilicon erratum 161010101 arm64: use is_vmalloc_addr arm64: use linux/sizes.h for constants arm64: uaccess: consistently check object sizes perf: add qcom l2 cache perf events driver arm64: remove wrong CONFIG_PROC_SYSCTL ifdef ARM: smccc: Update HVC comment to describe new quirk parameter arm64: do not trace atomic operations ACPI/IORT: Fix the error return code in iort_add_smmu_platform_device() ACPI/IORT: Fix iort_node_get_id() mapping entries indexing arm64: mm: enable CONFIG_HOLES_IN_ZONE for NUMA perf: xgene: Include module.h ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/arm-smccc.h52
-rw-r--r--include/linux/cpuhotplug.h1
-rw-r--r--include/linux/mm.h4
-rw-r--r--include/linux/of.h1
4 files changed, 47 insertions, 11 deletions
diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
index b5abfda80465..4c5bca38c653 100644
--- a/include/linux/arm-smccc.h
+++ b/include/linux/arm-smccc.h
@@ -14,9 +14,6 @@
#ifndef __LINUX_ARM_SMCCC_H
#define __LINUX_ARM_SMCCC_H
-#include <linux/linkage.h>
-#include <linux/types.h>
-
/*
* This file provides common defines for ARM SMC Calling Convention as
* specified in
@@ -60,6 +57,13 @@
#define ARM_SMCCC_OWNER_TRUSTED_OS 50
#define ARM_SMCCC_OWNER_TRUSTED_OS_END 63
+#define ARM_SMCCC_QUIRK_NONE 0
+#define ARM_SMCCC_QUIRK_QCOM_A6 1 /* Save/restore register a6 */
+
+#ifndef __ASSEMBLY__
+
+#include <linux/linkage.h>
+#include <linux/types.h>
/**
* struct arm_smccc_res - Result from SMC/HVC call
* @a0-a3 result values from registers 0 to 3
@@ -72,33 +76,59 @@ struct arm_smccc_res {
};
/**
- * arm_smccc_smc() - make SMC calls
+ * struct arm_smccc_quirk - Contains quirk information
+ * @id: quirk identification
+ * @state: quirk specific information
+ * @a6: Qualcomm quirk entry for returning post-smc call contents of a6
+ */
+struct arm_smccc_quirk {
+ int id;
+ union {
+ unsigned long a6;
+ } state;
+};
+
+/**
+ * __arm_smccc_smc() - make SMC calls
* @a0-a7: arguments passed in registers 0 to 7
* @res: result values from registers 0 to 3
+ * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required.
*
* This function is used to make SMC calls following SMC Calling Convention.
* The content of the supplied param are copied to registers 0 to 7 prior
* to the SMC instruction. The return values are updated with the content
- * from register 0 to 3 on return from the SMC instruction.
+ * from register 0 to 3 on return from the SMC instruction. An optional
+ * quirk structure provides vendor specific behavior.
*/
-asmlinkage void arm_smccc_smc(unsigned long a0, unsigned long a1,
+asmlinkage void __arm_smccc_smc(unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, unsigned long a6, unsigned long a7,
- struct arm_smccc_res *res);
+ struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
/**
- * arm_smccc_hvc() - make HVC calls
+ * __arm_smccc_hvc() - make HVC calls
* @a0-a7: arguments passed in registers 0 to 7
* @res: result values from registers 0 to 3
+ * @quirk: points to an arm_smccc_quirk, or NULL when no quirks are required.
*
* This function is used to make HVC calls following SMC Calling
* Convention. The content of the supplied param are copied to registers 0
* to 7 prior to the HVC instruction. The return values are updated with
- * the content from register 0 to 3 on return from the HVC instruction.
+ * the content from register 0 to 3 on return from the HVC instruction. An
+ * optional quirk structure provides vendor specific behavior.
*/
-asmlinkage void arm_smccc_hvc(unsigned long a0, unsigned long a1,
+asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, unsigned long a6, unsigned long a7,
- struct arm_smccc_res *res);
+ struct arm_smccc_res *res, struct arm_smccc_quirk *quirk);
+
+#define arm_smccc_smc(...) __arm_smccc_smc(__VA_ARGS__, NULL)
+
+#define arm_smccc_smc_quirk(...) __arm_smccc_smc(__VA_ARGS__)
+
+#define arm_smccc_hvc(...) __arm_smccc_hvc(__VA_ARGS__, NULL)
+
+#define arm_smccc_hvc_quirk(...) __arm_smccc_hvc(__VA_ARGS__)
+#endif /*__ASSEMBLY__*/
#endif /*__LINUX_ARM_SMCCC_H*/
diff --git a/include/linux/cpuhotplug.h b/include/linux/cpuhotplug.h
index 921acaaa1601..bb790c4db0c5 100644
--- a/include/linux/cpuhotplug.h
+++ b/include/linux/cpuhotplug.h
@@ -137,6 +137,7 @@ enum cpuhp_state {
CPUHP_AP_PERF_ARM_CCI_ONLINE,
CPUHP_AP_PERF_ARM_CCN_ONLINE,
CPUHP_AP_PERF_ARM_L2X0_ONLINE,
+ CPUHP_AP_PERF_ARM_QCOM_L2_ONLINE,
CPUHP_AP_WORKQUEUE_ONLINE,
CPUHP_AP_RCUTREE_ONLINE,
CPUHP_AP_ONLINE_DYN,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index b84615b0f64c..6ff66d6fe8e2 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -76,6 +76,10 @@ extern int mmap_rnd_compat_bits __read_mostly;
#define page_to_virt(x) __va(PFN_PHYS(page_to_pfn(x)))
#endif
+#ifndef lm_alias
+#define lm_alias(x) __va(__pa_symbol(x))
+#endif
+
/*
* To prevent common memory management code establishing
* a zero page mapping on a read fault.
diff --git a/include/linux/of.h b/include/linux/of.h
index d72f01009297..21e6323de0f3 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -280,6 +280,7 @@ extern struct device_node *of_get_child_by_name(const struct device_node *node,
/* cache lookup */
extern struct device_node *of_find_next_cache_node(const struct device_node *);
+extern int of_find_last_cache_level(unsigned int cpu);
extern struct device_node *of_find_node_with_property(
struct device_node *from, const char *prop_name);