riscv: use _BITUL macro rather than BIT() in ptrace uapi and kselftests

Fix the build of non-kernel code that includes the RISC-V ptrace uapi
header, and the RISC-V validate_v_ptrace.c kselftest, by using the
_BITUL() macro rather than BIT().  BIT() is not available outside
the kernel.

Based on patches and comments from Charlie Jenkins, Michael Neuling,
and Andreas Schwab.

Fixes: 30eb191 ("selftests: riscv: verify ptrace rejects invalid vector csr inputs")
Fixes: 2af7c9c ("riscv/ptrace: expose riscv CFI status and state via ptrace and in core files")
Cc: Andreas Schwab <schwab@suse.de>
Cc: Michael Neuling <mikey@neuling.org>
Cc: Charlie Jenkins <thecharlesjenkins@gmail.com>
Link: https://patch.msgid.link/20260330024248.449292-1-mikey@neuling.org
Link: https://lore.kernel.org/linux-riscv/20260309-fix_selftests-v2-1-9d5a553a531e@gmail.com/
Link: https://lore.kernel.org/linux-riscv/20260309-fix_selftests-v2-3-9d5a553a531e@gmail.com/
Signed-off-by: Paul Walmsley <pjw@kernel.org>

Author: Paul Walmsley

arch/riscv/include/uapi/asm/ptrace.h

@@ -9,6 +9,7 @@
 #ifndef __ASSEMBLER__
 
 #include <linux/types.h>
+#include <linux/const.h>
 
 #define PTRACE_GETFDPIC		33
 
@@ -138,12 +139,12 @@ struct __sc_riscv_cfi_state {
 #define PTRACE_CFI_SS_LOCK_BIT	4
 #define PTRACE_CFI_SS_PTR_BIT	5
 
-#define PTRACE_CFI_LP_EN_STATE		BIT(PTRACE_CFI_LP_EN_BIT)
-#define PTRACE_CFI_LP_LOCK_STATE	BIT(PTRACE_CFI_LP_LOCK_BIT)
-#define PTRACE_CFI_ELP_STATE		BIT(PTRACE_CFI_ELP_BIT)
-#define PTRACE_CFI_SS_EN_STATE		BIT(PTRACE_CFI_SS_EN_BIT)
-#define PTRACE_CFI_SS_LOCK_STATE	BIT(PTRACE_CFI_SS_LOCK_BIT)
-#define PTRACE_CFI_SS_PTR_STATE		BIT(PTRACE_CFI_SS_PTR_BIT)
+#define PTRACE_CFI_LP_EN_STATE		_BITUL(PTRACE_CFI_LP_EN_BIT)
+#define PTRACE_CFI_LP_LOCK_STATE	_BITUL(PTRACE_CFI_LP_LOCK_BIT)
+#define PTRACE_CFI_ELP_STATE		_BITUL(PTRACE_CFI_ELP_BIT)
+#define PTRACE_CFI_SS_EN_STATE		_BITUL(PTRACE_CFI_SS_EN_BIT)
+#define PTRACE_CFI_SS_LOCK_STATE	_BITUL(PTRACE_CFI_SS_LOCK_BIT)
+#define PTRACE_CFI_SS_PTR_STATE		_BITUL(PTRACE_CFI_SS_PTR_BIT)
 
 #define PRACE_CFI_STATE_INVALID_MASK	~(PTRACE_CFI_LP_EN_STATE | \
 					  PTRACE_CFI_LP_LOCK_STATE | \

tools/testing/selftests/riscv/vector/validate_v_ptrace.c

@@ -346,8 +346,8 @@ FIXTURE_TEARDOWN(v_csr_invalid)
 {
 }
 
-#define VECTOR_1_0		BIT(0)
-#define XTHEAD_VECTOR_0_7	BIT(1)
+#define VECTOR_1_0		_BITUL(0)
+#define XTHEAD_VECTOR_0_7	_BITUL(1)
 
 #define vector_test(x)		((x) & VECTOR_1_0)
 #define xthead_test(x)		((x) & XTHEAD_VECTOR_0_7)