Merge branch 'sched/urgent' into sched/core, to resolve conflicts

This commit in sched/urgent moved the cfs_rq_is_decayed() function:

  a7b359fc6a37: ("sched/fair: Correctly insert cfs_rq's to list on unthrottle")

and this fresh commit in sched/core modified it in the old location:

  9e077b52d86a: ("sched/pelt: Check that *_avg are null when *_sum are")

Merge the two variants.

Conflicts:
	kernel/sched/fair.c

Signed-off-by: Ingo Molnar <mingo@kernel.org>

10 files changed, 54 insertions, 21 deletions

diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index c5914e70a0fd..18ec0f9bb8d5 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -61,11 +61,11 @@ config RISCV
 	select GENERIC_TIME_VSYSCALL if MMU && 64BIT
 	select HANDLE_DOMAIN_IRQ
 	select HAVE_ARCH_AUDITSYSCALL
-	select HAVE_ARCH_JUMP_LABEL
-	select HAVE_ARCH_JUMP_LABEL_RELATIVE
+	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
+	select HAVE_ARCH_JUMP_LABEL_RELATIVE if !XIP_KERNEL
 	select HAVE_ARCH_KASAN if MMU && 64BIT
 	select HAVE_ARCH_KASAN_VMALLOC if MMU && 64BIT
-	select HAVE_ARCH_KGDB
+	select HAVE_ARCH_KGDB if !XIP_KERNEL
 	select HAVE_ARCH_KGDB_QXFER_PKT
 	select HAVE_ARCH_MMAP_RND_BITS if MMU
 	select HAVE_ARCH_SECCOMP_FILTER
@@ -80,9 +80,9 @@ config RISCV
 	select HAVE_GCC_PLUGINS
 	select HAVE_GENERIC_VDSO if MMU && 64BIT
 	select HAVE_IRQ_TIME_ACCOUNTING
-	select HAVE_KPROBES
-	select HAVE_KPROBES_ON_FTRACE
-	select HAVE_KRETPROBES
+	select HAVE_KPROBES if !XIP_KERNEL
+	select HAVE_KPROBES_ON_FTRACE if !XIP_KERNEL
+	select HAVE_KRETPROBES if !XIP_KERNEL
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
@@ -231,11 +231,11 @@ config ARCH_RV64I
 	bool "RV64I"
 	select 64BIT
 	select ARCH_SUPPORTS_INT128 if CC_HAS_INT128 && GCC_VERSION >= 50000
-	select HAVE_DYNAMIC_FTRACE if MMU && $(cc-option,-fpatchable-function-entry=8)
+	select HAVE_DYNAMIC_FTRACE if !XIP_KERNEL && MMU && $(cc-option,-fpatchable-function-entry=8)
 	select HAVE_DYNAMIC_FTRACE_WITH_REGS if HAVE_DYNAMIC_FTRACE
-	select HAVE_FTRACE_MCOUNT_RECORD
+	select HAVE_FTRACE_MCOUNT_RECORD if !XIP_KERNEL
 	select HAVE_FUNCTION_GRAPH_TRACER
-	select HAVE_FUNCTION_TRACER
+	select HAVE_FUNCTION_TRACER if !XIP_KERNEL
 	select SWIOTLB if MMU
 
 endchoice
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 3eb9590a0775..4be020695428 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -38,6 +38,15 @@ else
 	KBUILD_LDFLAGS += -melf32lriscv
 endif
 
+ifeq ($(CONFIG_LD_IS_LLD),y)
+	KBUILD_CFLAGS += -mno-relax
+	KBUILD_AFLAGS += -mno-relax
+ifneq ($(LLVM_IAS),1)
+	KBUILD_CFLAGS += -Wa,-mno-relax
+	KBUILD_AFLAGS += -Wa,-mno-relax
+endif
+endif
+
 # ISA string setting
 riscv-march-$(CONFIG_ARCH_RV32I)	:= rv32ima
 riscv-march-$(CONFIG_ARCH_RV64I)	:= rv64ima
diff --git a/arch/riscv/boot/dts/microchip/Makefile b/arch/riscv/boot/dts/microchip/Makefile
index 622b12771fd3..855c1502d912 100644
--- a/arch/riscv/boot/dts/microchip/Makefile
+++ b/arch/riscv/boot/dts/microchip/Makefile
@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_SOC_MICROCHIP_POLARFIRE) += microchip-mpfs-icicle-kit.dtb
+obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/riscv/boot/dts/sifive/Makefile b/arch/riscv/boot/dts/sifive/Makefile
index 74c47fe9fc22..d90e4eb0ade8 100644
--- a/arch/riscv/boot/dts/sifive/Makefile
+++ b/arch/riscv/boot/dts/sifive/Makefile
@@ -1,3 +1,4 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_SOC_SIFIVE) += hifive-unleashed-a00.dtb \
 			    hifive-unmatched-a00.dtb
+obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y))
diff --git a/arch/riscv/errata/sifive/Makefile b/arch/riscv/errata/sifive/Makefile
index bdd5fc843b8e..2fde48db0619 100644
--- a/arch/riscv/errata/sifive/Makefile
+++ b/arch/riscv/errata/sifive/Makefile
@@ -1,2 +1,2 @@
-obj-y += errata_cip_453.o
+obj-$(CONFIG_ERRATA_SIFIVE_CIP_453) += errata_cip_453.o
 obj-y += errata.o
diff --git a/arch/riscv/include/asm/alternative-macros.h b/arch/riscv/include/asm/alternative-macros.h
index 88c08705f64a..67406c376389 100644
--- a/arch/riscv/include/asm/alternative-macros.h
+++ b/arch/riscv/include/asm/alternative-macros.h
@@ -51,7 +51,7 @@
 	REG_ASM " " newlen "\n" \
 	".word " errata_id "\n"
 
-#define ALT_NEW_CONSTENT(vendor_id, errata_id, enable, new_c) \
+#define ALT_NEW_CONTENT(vendor_id, errata_id, enable, new_c) \
 	".if " __stringify(enable) " == 1\n"				\
 	".pushsection .alternative, \"a\"\n"				\
 	ALT_ENTRY("886b", "888f", __stringify(vendor_id), __stringify(errata_id), "889f - 888f") \
@@ -69,7 +69,7 @@
 	"886 :\n"	\
 	old_c "\n"	\
 	"887 :\n"	\
-	ALT_NEW_CONSTENT(vendor_id, errata_id, enable, new_c)
+	ALT_NEW_CONTENT(vendor_id, errata_id, enable, new_c)
 
 #define _ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, CONFIG_k)	\
 	__ALTERNATIVE_CFG(old_c, new_c, vendor_id, errata_id, IS_ENABLED(CONFIG_k))
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c
index 03901d3a8b02..9a1b7a0603b2 100644
--- a/arch/riscv/kernel/setup.c
+++ b/arch/riscv/kernel/setup.c
@@ -231,13 +231,13 @@ static void __init init_resources(void)
 
 	/* Clean-up any unused pre-allocated resources */
 	mem_res_sz = (num_resources - res_idx + 1) * sizeof(*mem_res);
-	memblock_free((phys_addr_t) mem_res, mem_res_sz);
+	memblock_free(__pa(mem_res), mem_res_sz);
 	return;
 
  error:
 	/* Better an empty resource tree than an inconsistent one */
 	release_child_resources(&iomem_resource);
-	memblock_free((phys_addr_t) mem_res, mem_res_sz);
+	memblock_free(__pa(mem_res), mem_res_sz);
 }
 
 
diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c
index 0721b9798595..7bc88d8aab97 100644
--- a/arch/riscv/kernel/traps.c
+++ b/arch/riscv/kernel/traps.c
@@ -86,8 +86,13 @@ static void do_trap_error(struct pt_regs *regs, int signo, int code,
 	}
 }
 
+#if defined (CONFIG_XIP_KERNEL) && defined (CONFIG_RISCV_ERRATA_ALTERNATIVE)
+#define __trap_section		__section(".xip.traps")
+#else
+#define __trap_section
+#endif
 #define DO_ERROR_INFO(name, signo, code, str)				\
-asmlinkage __visible void name(struct pt_regs *regs)			\
+asmlinkage __visible __trap_section void name(struct pt_regs *regs)	\
 {									\
 	do_trap_error(regs, signo, code, regs->epc, "Oops - " str);	\
 }
@@ -111,7 +116,7 @@ DO_ERROR_INFO(do_trap_store_misaligned,
 int handle_misaligned_load(struct pt_regs *regs);
 int handle_misaligned_store(struct pt_regs *regs);
 
-asmlinkage void do_trap_load_misaligned(struct pt_regs *regs)
+asmlinkage void __trap_section do_trap_load_misaligned(struct pt_regs *regs)
 {
 	if (!handle_misaligned_load(regs))
 		return;
@@ -119,7 +124,7 @@ asmlinkage void do_trap_load_misaligned(struct pt_regs *regs)
 		      "Oops - load address misaligned");
 }
 
-asmlinkage void do_trap_store_misaligned(struct pt_regs *regs)
+asmlinkage void __trap_section do_trap_store_misaligned(struct pt_regs *regs)
 {
 	if (!handle_misaligned_store(regs))
 		return;
@@ -146,7 +151,7 @@ static inline unsigned long get_break_insn_length(unsigned long pc)
 	return GET_INSN_LENGTH(insn);
 }
 
-asmlinkage __visible void do_trap_break(struct pt_regs *regs)
+asmlinkage __visible __trap_section void do_trap_break(struct pt_regs *regs)
 {
 #ifdef CONFIG_KPROBES
 	if (kprobe_single_step_handler(regs))
diff --git a/arch/riscv/kernel/vmlinux-xip.lds.S b/arch/riscv/kernel/vmlinux-xip.lds.S
index 4b29b9917f99..a3ff09c4c3f9 100644
--- a/arch/riscv/kernel/vmlinux-xip.lds.S
+++ b/arch/riscv/kernel/vmlinux-xip.lds.S
@@ -99,9 +99,22 @@ SECTIONS
 	}
 	PERCPU_SECTION(L1_CACHE_BYTES)
 
-	. = ALIGN(PAGE_SIZE);
+	. = ALIGN(8);
+	.alternative : {
+		__alt_start = .;
+		*(.alternative)
+		__alt_end = .;
+	}
 	__init_end = .;
 
+	. = ALIGN(16);
+	.xip.traps : {
+		__xip_traps_start = .;
+		*(.xip.traps)
+		__xip_traps_end = .;
+	}
+
+	. = ALIGN(PAGE_SIZE);
 	.sdata : {
 		__global_pointer$ = . + 0x800;
 		*(.sdata*)
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c
index 4faf8bd157ea..4c4c92ce0bb8 100644
--- a/arch/riscv/mm/init.c
+++ b/arch/riscv/mm/init.c
@@ -746,14 +746,18 @@ void __init protect_kernel_text_data(void)
 	unsigned long init_data_start = (unsigned long)__init_data_begin;
 	unsigned long rodata_start = (unsigned long)__start_rodata;
 	unsigned long data_start = (unsigned long)_data;
-	unsigned long max_low = (unsigned long)(__va(PFN_PHYS(max_low_pfn)));
+#if defined(CONFIG_64BIT) && defined(CONFIG_MMU)
+	unsigned long end_va = kernel_virt_addr + load_sz;
+#else
+	unsigned long end_va = (unsigned long)(__va(PFN_PHYS(max_low_pfn)));
+#endif
 
 	set_memory_ro(text_start, (init_text_start - text_start) >> PAGE_SHIFT);
 	set_memory_ro(init_text_start, (init_data_start - init_text_start) >> PAGE_SHIFT);
 	set_memory_nx(init_data_start, (rodata_start - init_data_start) >> PAGE_SHIFT);
 	/* rodata section is marked readonly in mark_rodata_ro */
 	set_memory_nx(rodata_start, (data_start - rodata_start) >> PAGE_SHIFT);
-	set_memory_nx(data_start, (max_low - data_start) >> PAGE_SHIFT);
+	set_memory_nx(data_start, (end_va - data_start) >> PAGE_SHIFT);
 }
 
 void mark_rodata_ro(void)