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authorWill Deacon <will@kernel.org>2025-05-27 12:24:12 +0100
committerWill Deacon <will@kernel.org>2025-05-27 12:24:12 +0100
commit48055fb8823bb5e8266096ee13bc23112a02585f (patch)
tree751b48d3ae0b6f6bf11bcc0405cf0bf5e7ec83ba /arch/arm64/include
parentb5b6910f83b80e2f088f529538352907605f0407 (diff)
parent80834997154271da58fd69fa7fdfe8238750960e (diff)
Merge branch 'for-next/entry' into for-next/core
* for-next/entry: arm64: el2_setup.h: Make __init_el2_fgt labels consistent, again arm64: Update comment regarding values in __boot_cpu_mode arm64/mm: Re-organise setting up FEAT_S1PIE registers PIRE0_EL1 and PIR_EL1 arm64: enable PREEMPT_LAZY
Diffstat (limited to 'arch/arm64/include')
-rw-r--r--arch/arm64/include/asm/el2_setup.h10
-rw-r--r--arch/arm64/include/asm/thread_info.h16
-rw-r--r--arch/arm64/include/asm/virt.h3
3 files changed, 18 insertions, 11 deletions
diff --git a/arch/arm64/include/asm/el2_setup.h b/arch/arm64/include/asm/el2_setup.h
index ebceaae3c749..30f57b0334a3 100644
--- a/arch/arm64/include/asm/el2_setup.h
+++ b/arch/arm64/include/asm/el2_setup.h
@@ -204,19 +204,21 @@
orr x0, x0, #(1 << 62)
.Lskip_spe_fgt_\@:
+
+.Lset_debug_fgt_\@:
msr_s SYS_HDFGRTR_EL2, x0
msr_s SYS_HDFGWTR_EL2, x0
mov x0, xzr
mrs x1, id_aa64pfr1_el1
ubfx x1, x1, #ID_AA64PFR1_EL1_SME_SHIFT, #4
- cbz x1, .Lskip_debug_fgt_\@
+ cbz x1, .Lskip_sme_fgt_\@
/* Disable nVHE traps of TPIDR2 and SMPRI */
orr x0, x0, #HFGxTR_EL2_nSMPRI_EL1_MASK
orr x0, x0, #HFGxTR_EL2_nTPIDR2_EL0_MASK
-.Lskip_debug_fgt_\@:
+.Lskip_sme_fgt_\@:
mrs_s x1, SYS_ID_AA64MMFR3_EL1
ubfx x1, x1, #ID_AA64MMFR3_EL1_S1PIE_SHIFT, #4
cbz x1, .Lskip_pie_fgt_\@
@@ -237,12 +239,14 @@
/* GCS depends on PIE so we don't check it if PIE is absent */
mrs_s x1, SYS_ID_AA64PFR1_EL1
ubfx x1, x1, #ID_AA64PFR1_EL1_GCS_SHIFT, #4
- cbz x1, .Lset_fgt_\@
+ cbz x1, .Lskip_gce_fgt_\@
/* Disable traps of access to GCS registers at EL0 and EL1 */
orr x0, x0, #HFGxTR_EL2_nGCS_EL1_MASK
orr x0, x0, #HFGxTR_EL2_nGCS_EL0_MASK
+.Lskip_gce_fgt_\@:
+
.Lset_fgt_\@:
msr_s SYS_HFGRTR_EL2, x0
msr_s SYS_HFGWTR_EL2, x0
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 1114c1c3300a..4443ef278975 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -59,11 +59,12 @@ void arch_setup_new_exec(void);
#define TIF_SIGPENDING 0 /* signal pending */
#define TIF_NEED_RESCHED 1 /* rescheduling necessary */
-#define TIF_NOTIFY_RESUME 2 /* callback before returning to user */
-#define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */
-#define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */
-#define TIF_MTE_ASYNC_FAULT 5 /* MTE Asynchronous Tag Check Fault */
-#define TIF_NOTIFY_SIGNAL 6 /* signal notifications exist */
+#define TIF_NEED_RESCHED_LAZY 2 /* Lazy rescheduling needed */
+#define TIF_NOTIFY_RESUME 3 /* callback before returning to user */
+#define TIF_FOREIGN_FPSTATE 4 /* CPU's FP state is not current's */
+#define TIF_UPROBE 5 /* uprobe breakpoint or singlestep */
+#define TIF_MTE_ASYNC_FAULT 6 /* MTE Asynchronous Tag Check Fault */
+#define TIF_NOTIFY_SIGNAL 7 /* signal notifications exist */
#define TIF_SYSCALL_TRACE 8 /* syscall trace active */
#define TIF_SYSCALL_AUDIT 9 /* syscall auditing */
#define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */
@@ -85,6 +86,7 @@ void arch_setup_new_exec(void);
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
+#define _TIF_NEED_RESCHED_LAZY (1 << TIF_NEED_RESCHED_LAZY)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_FOREIGN_FPSTATE (1 << TIF_FOREIGN_FPSTATE)
#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
@@ -100,10 +102,10 @@ void arch_setup_new_exec(void);
#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
#define _TIF_TSC_SIGSEGV (1 << TIF_TSC_SIGSEGV)
-#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_SIGPENDING | \
+#define _TIF_WORK_MASK (_TIF_NEED_RESCHED | _TIF_NEED_RESCHED_LAZY | \
_TIF_NOTIFY_RESUME | _TIF_FOREIGN_FPSTATE | \
_TIF_UPROBE | _TIF_MTE_ASYNC_FAULT | \
- _TIF_NOTIFY_SIGNAL)
+ _TIF_NOTIFY_SIGNAL | _TIF_SIGPENDING)
#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \
_TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \
diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index ebf4a9f943ed..aa280f356b96 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -67,7 +67,8 @@
* __boot_cpu_mode records what mode CPUs were booted in.
* A correctly-implemented bootloader must start all CPUs in the same mode:
* In this case, both 32bit halves of __boot_cpu_mode will contain the
- * same value (either 0 if booted in EL1, BOOT_CPU_MODE_EL2 if booted in EL2).
+ * same value (either BOOT_CPU_MODE_EL1 if booted in EL1, BOOT_CPU_MODE_EL2 if
+ * booted in EL2).
*
* Should the bootloader fail to do this, the two values will be different.
* This allows the kernel to flag an error when the secondaries have come up.