linux-stable/arch/powerpc/include/asm/reg_fsl_emb.h
Michael Ellerman 6caecacc92 powerpc/fsl: Fix mfpmr() asm constraint error
mfpmr() needs to be marked always inline, otherwise the compiler will
complain that the rn argument can't be passed to the asm block as an
integer:

  arch/powerpc/include/asm/reg_fsl_emb.h:18:9: warning: 'asm' operand 1 probably does not match constraints
      18 |         asm (".machine push; "
  	     |         ^~~
  arch/powerpc/include/asm/reg_fsl_emb.h:18:9: error: impossible constraint in 'asm'

Mark mtpmr() always inline also to avoid any future problems with it.

Fixes: f01dbd73cc ("powerpc/fsl: Modernise mt/mfpmr")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403051835.iqLGz996-lkp@intel.com/
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2024-03-07 00:13:28 +11:00

106 lines
3.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
/*
* Contains register definitions for the Freescale Embedded Performance
* Monitor.
*/
#ifdef __KERNEL__
#ifndef __ASM_POWERPC_REG_FSL_EMB_H__
#define __ASM_POWERPC_REG_FSL_EMB_H__
#include <linux/stringify.h>
#ifndef __ASSEMBLY__
/* Performance Monitor Registers */
static __always_inline unsigned int mfpmr(unsigned int rn)
{
unsigned int rval;
asm (".machine push; "
".machine e300; "
"mfpmr %[rval], %[rn];"
".machine pop;"
: [rval] "=r" (rval) : [rn] "i" (rn));
return rval;
}
static __always_inline void mtpmr(unsigned int rn, unsigned int val)
{
asm (".machine push; "
".machine e300; "
"mtpmr %[rn], %[val];"
".machine pop;"
: [val] "=r" (val) : [rn] "i" (rn));
}
#endif /* __ASSEMBLY__ */
/* Freescale Book E Performance Monitor APU Registers */
#define PMRN_PMC0 0x010 /* Performance Monitor Counter 0 */
#define PMRN_PMC1 0x011 /* Performance Monitor Counter 1 */
#define PMRN_PMC2 0x012 /* Performance Monitor Counter 2 */
#define PMRN_PMC3 0x013 /* Performance Monitor Counter 3 */
#define PMRN_PMC4 0x014 /* Performance Monitor Counter 4 */
#define PMRN_PMC5 0x015 /* Performance Monitor Counter 5 */
#define PMRN_PMLCA0 0x090 /* PM Local Control A0 */
#define PMRN_PMLCA1 0x091 /* PM Local Control A1 */
#define PMRN_PMLCA2 0x092 /* PM Local Control A2 */
#define PMRN_PMLCA3 0x093 /* PM Local Control A3 */
#define PMRN_PMLCA4 0x094 /* PM Local Control A4 */
#define PMRN_PMLCA5 0x095 /* PM Local Control A5 */
#define PMLCA_FC 0x80000000 /* Freeze Counter */
#define PMLCA_FCS 0x40000000 /* Freeze in Supervisor */
#define PMLCA_FCU 0x20000000 /* Freeze in User */
#define PMLCA_FCM1 0x10000000 /* Freeze when PMM==1 */
#define PMLCA_FCM0 0x08000000 /* Freeze when PMM==0 */
#define PMLCA_CE 0x04000000 /* Condition Enable */
#define PMLCA_FGCS1 0x00000002 /* Freeze in guest state */
#define PMLCA_FGCS0 0x00000001 /* Freeze in hypervisor state */
#define PMLCA_EVENT_MASK 0x01ff0000 /* Event field */
#define PMLCA_EVENT_SHIFT 16
#define PMRN_PMLCB0 0x110 /* PM Local Control B0 */
#define PMRN_PMLCB1 0x111 /* PM Local Control B1 */
#define PMRN_PMLCB2 0x112 /* PM Local Control B2 */
#define PMRN_PMLCB3 0x113 /* PM Local Control B3 */
#define PMRN_PMLCB4 0x114 /* PM Local Control B4 */
#define PMRN_PMLCB5 0x115 /* PM Local Control B5 */
#define PMLCB_THRESHMUL_MASK 0x0700 /* Threshold Multiple Field */
#define PMLCB_THRESHMUL_SHIFT 8
#define PMLCB_THRESHOLD_MASK 0x003f /* Threshold Field */
#define PMLCB_THRESHOLD_SHIFT 0
#define PMRN_PMGC0 0x190 /* PM Global Control 0 */
#define PMGC0_FAC 0x80000000 /* Freeze all Counters */
#define PMGC0_PMIE 0x40000000 /* Interrupt Enable */
#define PMGC0_FCECE 0x20000000 /* Freeze countes on
Enabled Condition or
Event */
#define PMRN_UPMC0 0x000 /* User Performance Monitor Counter 0 */
#define PMRN_UPMC1 0x001 /* User Performance Monitor Counter 1 */
#define PMRN_UPMC2 0x002 /* User Performance Monitor Counter 2 */
#define PMRN_UPMC3 0x003 /* User Performance Monitor Counter 3 */
#define PMRN_UPMC4 0x004 /* User Performance Monitor Counter 4 */
#define PMRN_UPMC5 0x005 /* User Performance Monitor Counter 5 */
#define PMRN_UPMLCA0 0x080 /* User PM Local Control A0 */
#define PMRN_UPMLCA1 0x081 /* User PM Local Control A1 */
#define PMRN_UPMLCA2 0x082 /* User PM Local Control A2 */
#define PMRN_UPMLCA3 0x083 /* User PM Local Control A3 */
#define PMRN_UPMLCA4 0x084 /* User PM Local Control A4 */
#define PMRN_UPMLCA5 0x085 /* User PM Local Control A5 */
#define PMRN_UPMLCB0 0x100 /* User PM Local Control B0 */
#define PMRN_UPMLCB1 0x101 /* User PM Local Control B1 */
#define PMRN_UPMLCB2 0x102 /* User PM Local Control B2 */
#define PMRN_UPMLCB3 0x103 /* User PM Local Control B3 */
#define PMRN_UPMLCB4 0x104 /* User PM Local Control B4 */
#define PMRN_UPMLCB5 0x105 /* User PM Local Control B5 */
#define PMRN_UPMGC0 0x180 /* User PM Global Control 0 */
#endif /* __ASM_POWERPC_REG_FSL_EMB_H__ */
#endif /* __KERNEL__ */