Update Linux to v5.10.109
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz
Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index 3546d29..24a1f49 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -107,6 +107,16 @@
.endm
#endif
+#if __LINUX_ARM_ARCH__ < 7
+ .macro dsb, args
+ mcr p15, 0, r0, c7, c10, 4
+ .endm
+
+ .macro isb, args
+ mcr p15, 0, r0, c7, c5, 4
+ .endm
+#endif
+
.macro asm_trace_hardirqs_off, save=1
#if defined(CONFIG_TRACE_IRQFLAGS)
.if \save
@@ -269,10 +279,9 @@
.endif ;\
.popsection
#define ALT_UP_B(label) \
- .equ up_b_offset, label - 9998b ;\
.pushsection ".alt.smp.init", "a" ;\
.long 9998b ;\
- W(b) . + up_b_offset ;\
+ W(b) . + (label - 9998b) ;\
.popsection
#else
#define ALT_SMP(instr...)
@@ -495,4 +504,88 @@
#define _ASM_NOKPROBE(entry)
#endif
+ .macro __adldst_l, op, reg, sym, tmp, c
+ .if __LINUX_ARM_ARCH__ < 7
+ ldr\c \tmp, .La\@
+ .subsection 1
+ .align 2
+.La\@: .long \sym - .Lpc\@
+ .previous
+ .else
+ .ifnb \c
+ THUMB( ittt \c )
+ .endif
+ movw\c \tmp, #:lower16:\sym - .Lpc\@
+ movt\c \tmp, #:upper16:\sym - .Lpc\@
+ .endif
+
+#ifndef CONFIG_THUMB2_KERNEL
+ .set .Lpc\@, . + 8 // PC bias
+ .ifc \op, add
+ add\c \reg, \tmp, pc
+ .else
+ \op\c \reg, [pc, \tmp]
+ .endif
+#else
+.Lb\@: add\c \tmp, \tmp, pc
+ /*
+ * In Thumb-2 builds, the PC bias depends on whether we are currently
+ * emitting into a .arm or a .thumb section. The size of the add opcode
+ * above will be 2 bytes when emitting in Thumb mode and 4 bytes when
+ * emitting in ARM mode, so let's use this to account for the bias.
+ */
+ .set .Lpc\@, . + (. - .Lb\@)
+
+ .ifnc \op, add
+ \op\c \reg, [\tmp]
+ .endif
+#endif
+ .endm
+
+ /*
+ * mov_l - move a constant value or [relocated] address into a register
+ */
+ .macro mov_l, dst:req, imm:req
+ .if __LINUX_ARM_ARCH__ < 7
+ ldr \dst, =\imm
+ .else
+ movw \dst, #:lower16:\imm
+ movt \dst, #:upper16:\imm
+ .endif
+ .endm
+
+ /*
+ * adr_l - adr pseudo-op with unlimited range
+ *
+ * @dst: destination register
+ * @sym: name of the symbol
+ * @cond: conditional opcode suffix
+ */
+ .macro adr_l, dst:req, sym:req, cond
+ __adldst_l add, \dst, \sym, \dst, \cond
+ .endm
+
+ /*
+ * ldr_l - ldr <literal> pseudo-op with unlimited range
+ *
+ * @dst: destination register
+ * @sym: name of the symbol
+ * @cond: conditional opcode suffix
+ */
+ .macro ldr_l, dst:req, sym:req, cond
+ __adldst_l ldr, \dst, \sym, \dst, \cond
+ .endm
+
+ /*
+ * str_l - str <literal> pseudo-op with unlimited range
+ *
+ * @src: source register
+ * @sym: name of the symbol
+ * @tmp: mandatory scratch register
+ * @cond: conditional opcode suffix
+ */
+ .macro str_l, src:req, sym:req, tmp:req, cond
+ __adldst_l str, \src, \sym, \tmp, \cond
+ .endm
+
#endif /* __ASM_ASSEMBLER_H__ */