diff options
| author | Mark Brown <broonie@kernel.org> | 2023-01-16 16:04:36 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2023-01-20 12:23:05 +0000 |
| commit | ce514000da4f4b5f850f3339f805471e5c5c1caf (patch) | |
| tree | e393aac2fce1f5795d2a6fb554eb512fa3190e43 /arch/arm64/kernel/process.c | |
| parent | b7bfaa761d760e72a969d116517eaa12e404c262 (diff) | |
arm64/sme: Rename za_state to sme_state
In preparation for adding support for storage for ZT0 to the thread_struct
rename za_state to sme_state. Since ZT0 is accessible when PSTATE.ZA is
set just like ZA itself we will extend the allocation done for ZA to
cover it, avoiding the need to further expand task_struct for non-SME
tasks.
No functional changes.
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20221208-arm64-sme2-v4-1-f2fa0aef982f@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/kernel/process.c')
| -rw-r--r-- | arch/arm64/kernel/process.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 269ac1c25ae2..4ce0c4313ec6 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -311,23 +311,24 @@ int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src) * This may be shortly freed if we exec() or if CLONE_SETTLS * but it's simpler to do it here. To avoid confusing the rest * of the code ensure that we have a sve_state allocated - * whenever za_state is allocated. + * whenever sme_state is allocated. */ if (thread_za_enabled(&src->thread)) { dst->thread.sve_state = kzalloc(sve_state_size(src), GFP_KERNEL); if (!dst->thread.sve_state) return -ENOMEM; - dst->thread.za_state = kmemdup(src->thread.za_state, - za_state_size(src), - GFP_KERNEL); - if (!dst->thread.za_state) { + + dst->thread.sme_state = kmemdup(src->thread.sme_state, + sme_state_size(src), + GFP_KERNEL); + if (!dst->thread.sme_state) { kfree(dst->thread.sve_state); dst->thread.sve_state = NULL; return -ENOMEM; } } else { - dst->thread.za_state = NULL; + dst->thread.sme_state = NULL; clear_tsk_thread_flag(dst, TIF_SME); } |