| process.c (6f84981772535e670e4e2df051a672af229b6694) | process.c (ce514000da4f4b5f850f3339f805471e5c5c1caf) |
|---|---|
| 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Based on arch/arm/kernel/process.c 4 * 5 * Original Copyright (C) 1995 Linus Torvalds 6 * Copyright (C) 1996-2000 Russell King - Converted to ARM. 7 * Copyright (C) 2012 ARM Ltd. 8 */ --- 297 unchanged lines hidden (view full) --- 306 clear_tsk_thread_flag(dst, TIF_SVE); 307 308 /* 309 * In the unlikely event that we create a new thread with ZA 310 * enabled we should retain the ZA state so duplicate it here. 311 * This may be shortly freed if we exec() or if CLONE_SETTLS 312 * but it's simpler to do it here. To avoid confusing the rest 313 * of the code ensure that we have a sve_state allocated | 1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Based on arch/arm/kernel/process.c 4 * 5 * Original Copyright (C) 1995 Linus Torvalds 6 * Copyright (C) 1996-2000 Russell King - Converted to ARM. 7 * Copyright (C) 2012 ARM Ltd. 8 */ --- 297 unchanged lines hidden (view full) --- 306 clear_tsk_thread_flag(dst, TIF_SVE); 307 308 /* 309 * In the unlikely event that we create a new thread with ZA 310 * enabled we should retain the ZA state so duplicate it here. 311 * This may be shortly freed if we exec() or if CLONE_SETTLS 312 * but it's simpler to do it here. To avoid confusing the rest 313 * of the code ensure that we have a sve_state allocated |
| 314 * whenever za_state is allocated. | 314 * whenever sme_state is allocated. |
| 315 */ 316 if (thread_za_enabled(&src->thread)) { 317 dst->thread.sve_state = kzalloc(sve_state_size(src), 318 GFP_KERNEL); 319 if (!dst->thread.sve_state) 320 return -ENOMEM; | 315 */ 316 if (thread_za_enabled(&src->thread)) { 317 dst->thread.sve_state = kzalloc(sve_state_size(src), 318 GFP_KERNEL); 319 if (!dst->thread.sve_state) 320 return -ENOMEM; |
| 321 dst->thread.za_state = kmemdup(src->thread.za_state, 322 za_state_size(src), 323 GFP_KERNEL); 324 if (!dst->thread.za_state) { | 321 322 dst->thread.sme_state = kmemdup(src->thread.sme_state, 323 sme_state_size(src), 324 GFP_KERNEL); 325 if (!dst->thread.sme_state) { |
| 325 kfree(dst->thread.sve_state); 326 dst->thread.sve_state = NULL; 327 return -ENOMEM; 328 } 329 } else { | 326 kfree(dst->thread.sve_state); 327 dst->thread.sve_state = NULL; 328 return -ENOMEM; 329 } 330 } else { |
| 330 dst->thread.za_state = NULL; | 331 dst->thread.sme_state = NULL; |
| 331 clear_tsk_thread_flag(dst, TIF_SME); 332 } 333 334 dst->thread.fp_type = FP_STATE_FPSIMD; 335 336 /* clear any pending asynchronous tag fault raised by the parent */ 337 clear_tsk_thread_flag(dst, TIF_MTE_ASYNC_FAULT); 338 --- 421 unchanged lines hidden --- | 332 clear_tsk_thread_flag(dst, TIF_SME); 333 } 334 335 dst->thread.fp_type = FP_STATE_FPSIMD; 336 337 /* clear any pending asynchronous tag fault raised by the parent */ 338 clear_tsk_thread_flag(dst, TIF_MTE_ASYNC_FAULT); 339 --- 421 unchanged lines hidden --- |