diff options
Diffstat (limited to 'patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch')
| -rw-r--r-- | patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch | 34 |
1 files changed, 17 insertions, 17 deletions
diff --git a/patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch b/patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch index 1e903ef243cc..9a6063b8edd4 100644 --- a/patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch +++ b/patches/arm64-fpsimd-use-preemp_disable-in-addition-to-local.patch @@ -32,10 +32,10 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> + return sve_state; +} + - static void change_cpacr(u64 val, u64 mask) - { - u64 cpacr = read_sysreg(CPACR_EL1); -@@ -566,6 +576,7 @@ int sve_set_vector_length(struct task_st + /* + * TIF_SVE controls whether a task can use SVE without trapping while + * in userspace, and also the way a task's FPSIMD/SVE state is stored +@@ -547,6 +557,7 @@ int sve_set_vector_length(struct task_st * non-SVE thread. */ if (task == current) { @@ -43,7 +43,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); fpsimd_save(); -@@ -576,8 +587,10 @@ int sve_set_vector_length(struct task_st +@@ -557,8 +568,10 @@ int sve_set_vector_length(struct task_st if (test_and_clear_tsk_thread_flag(task, TIF_SVE)) sve_to_fpsimd(task); @@ -55,7 +55,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> /* * Force reallocation of task SVE state to the correct size -@@ -832,6 +845,7 @@ asmlinkage void do_sve_acc(unsigned int +@@ -813,6 +826,7 @@ asmlinkage void do_sve_acc(unsigned int sve_alloc(current); @@ -63,7 +63,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); fpsimd_save(); -@@ -845,6 +859,7 @@ asmlinkage void do_sve_acc(unsigned int +@@ -826,6 +840,7 @@ asmlinkage void do_sve_acc(unsigned int WARN_ON(1); /* SVE access shouldn't have trapped */ local_bh_enable(); @@ -71,7 +71,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -911,10 +926,12 @@ void fpsimd_thread_switch(struct task_st +@@ -892,10 +907,12 @@ void fpsimd_thread_switch(struct task_st void fpsimd_flush_thread(void) { int vl, supported_vl; @@ -84,7 +84,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); memset(¤t->thread.uw.fpsimd_state, 0, -@@ -923,7 +940,7 @@ void fpsimd_flush_thread(void) +@@ -904,7 +921,7 @@ void fpsimd_flush_thread(void) if (system_supports_sve()) { clear_thread_flag(TIF_SVE); @@ -93,7 +93,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> /* * Reset the task vector length as required. -@@ -959,6 +976,8 @@ void fpsimd_flush_thread(void) +@@ -940,6 +957,8 @@ void fpsimd_flush_thread(void) set_thread_flag(TIF_FOREIGN_FPSTATE); local_bh_enable(); @@ -102,7 +102,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -970,9 +989,11 @@ void fpsimd_preserve_current_state(void) +@@ -951,9 +970,11 @@ void fpsimd_preserve_current_state(void) if (!system_supports_fpsimd()) return; @@ -114,7 +114,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -1030,6 +1051,7 @@ void fpsimd_restore_current_state(void) +@@ -1011,6 +1032,7 @@ void fpsimd_restore_current_state(void) if (!system_supports_fpsimd()) return; @@ -122,7 +122,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); if (test_and_clear_thread_flag(TIF_FOREIGN_FPSTATE)) { -@@ -1038,6 +1060,7 @@ void fpsimd_restore_current_state(void) +@@ -1019,6 +1041,7 @@ void fpsimd_restore_current_state(void) } local_bh_enable(); @@ -130,7 +130,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -1050,6 +1073,7 @@ void fpsimd_update_current_state(struct +@@ -1031,6 +1054,7 @@ void fpsimd_update_current_state(struct if (!system_supports_fpsimd()) return; @@ -138,7 +138,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); current->thread.uw.fpsimd_state = *state; -@@ -1062,6 +1086,7 @@ void fpsimd_update_current_state(struct +@@ -1043,6 +1067,7 @@ void fpsimd_update_current_state(struct clear_thread_flag(TIF_FOREIGN_FPSTATE); local_bh_enable(); @@ -146,7 +146,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> } /* -@@ -1107,6 +1132,7 @@ void kernel_neon_begin(void) +@@ -1088,6 +1113,7 @@ void kernel_neon_begin(void) BUG_ON(!may_use_simd()); @@ -154,7 +154,7 @@ Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> local_bh_disable(); __this_cpu_write(kernel_neon_busy, true); -@@ -1120,6 +1146,7 @@ void kernel_neon_begin(void) +@@ -1101,6 +1127,7 @@ void kernel_neon_begin(void) preempt_disable(); local_bh_enable(); |