@@ -5,6 +5,7 @@
#include <asm/csr.h>
#include <asm/hwcap.h>
#include <asm/alternative-macros.h>
+#include <asm/vendorid_list.h>
.macro fixup op reg addr lbl
100:
@@ -15,6 +16,7 @@
SYM_FUNC_START(__asm_copy_to_user)
#ifdef CONFIG_RISCV_ISA_V
ALTERNATIVE("j fallback_scalar_usercopy", "nop", 0, RISCV_ISA_EXT_v, CONFIG_RISCV_ISA_V)
+ ALTERNATIVE("nop", "j fallback_scalar_usercopy", THEAD_VENDOR_ID, RISCV_ISA_VENDOR_EXT_XTHEADVECTOR, CONFIG_RISCV_ISA_XTHEADVECTOR)
REG_L t0, riscv_v_usercopy_threshold
bltu a2, t0, fallback_scalar_usercopy
tail enter_vector_usercopy
At this time, use the fallback uaccess routines rather than customizing the vectorized uaccess routines to be compatible with xtheadvector. Signed-off-by: Charlie Jenkins <charlie@rivosinc.com> --- arch/riscv/lib/uaccess.S | 2 ++ 1 file changed, 2 insertions(+)