On 7/29/20 9:46 AM, Athira Rajeev wrote:
commit 9908c826d5ed ("powerpc/perf: Add Power10 PMU feature to
DT CPU features") defines MMCRA_BHRB_DISABLE as `0x2000000000UL`.
Binutils version less than 2.28 doesn't support UL suffix.

linux-ppc/arch/powerpc/kernel/cpu_setup_power.S: Assembler messages:
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', 
expected: ')'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: junk at end of 
line, first unrecognized character is `L'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', 
expected: ')'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', 
expected: ')'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: junk at end of 
line, first unrecognized character is `L'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', 
expected: ')'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: found 'L', 
expected: ')'
linux-ppc/arch/powerpc/kernel/cpu_setup_power.S:250: Error: operand out of 
range (0x0000002000000000 is not between 0xffffffffffff8000 and 
0x000000000000ffff)

Fix this by wrapping it around `_UL` macro.
Looks fine to me.

Reviewed-by: Madhavan Srinivasan <ma...@linux.ibm.com>



Fixes: 9908c826d5ed ("Add Power10 PMU feature to DT CPU features")
Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
Suggested-by: Michael Ellerman <m...@ellerman.id.au>
---
  arch/powerpc/include/asm/reg.h | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index ae71027..41419f1 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -12,6 +12,7 @@
  #ifdef __KERNEL__

  #include <linux/stringify.h>
+#include <linux/const.h>
  #include <asm/cputable.h>
  #include <asm/asm-const.h>
  #include <asm/feature-fixups.h>
@@ -888,7 +889,7 @@
  #define   MMCRA_SLOT  0x07000000UL /* SLOT bits (37-39) */
  #define   MMCRA_SLOT_SHIFT    24
  #define   MMCRA_SAMPLE_ENABLE 0x00000001UL /* enable sampling */
-#define   MMCRA_BHRB_DISABLE  0x2000000000UL // BHRB disable bit for ISA v3.1
+#define   MMCRA_BHRB_DISABLE  _UL(0x2000000000) // BHRB disable bit for ISA 
v3.1
  #define   POWER6_MMCRA_SDSYNC 0x0000080000000000ULL   /* SDAR/SIAR synced */
  #define   POWER6_MMCRA_SIHV   0x0000040000000000ULL
  #define   POWER6_MMCRA_SIPR   0x0000020000000000ULL

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