mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-28 06:34:12 +08:00
db74cd6337
After the conversion to automatically generating the ID_AA64DFR0_EL1
definition names, the build fails in a few different places because some
of the definitions were not changed to their new names along the way.
Update the names to resolve the build errors.
Fixes: c0357a73fa ("arm64/sysreg: Align field names in ID_AA64DFR0_EL1 with architecture")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220919160928.3905780-1-nathan@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
146 lines
3.2 KiB
C
146 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* This contains all required hardware related helper functions for
|
|
* Trace Buffer Extension (TRBE) driver in the coresight framework.
|
|
*
|
|
* Copyright (C) 2020 ARM Ltd.
|
|
*
|
|
* Author: Anshuman Khandual <anshuman.khandual@arm.com>
|
|
*/
|
|
#include <linux/coresight.h>
|
|
#include <linux/device.h>
|
|
#include <linux/irq.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/of.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/smp.h>
|
|
|
|
#include "coresight-etm-perf.h"
|
|
|
|
static inline bool is_trbe_available(void)
|
|
{
|
|
u64 aa64dfr0 = read_sysreg_s(SYS_ID_AA64DFR0_EL1);
|
|
unsigned int trbe = cpuid_feature_extract_unsigned_field(aa64dfr0,
|
|
ID_AA64DFR0_EL1_TraceBuffer_SHIFT);
|
|
|
|
return trbe >= 0b0001;
|
|
}
|
|
|
|
static inline bool is_trbe_enabled(void)
|
|
{
|
|
u64 trblimitr = read_sysreg_s(SYS_TRBLIMITR_EL1);
|
|
|
|
return trblimitr & TRBLIMITR_ENABLE;
|
|
}
|
|
|
|
#define TRBE_EC_OTHERS 0
|
|
#define TRBE_EC_STAGE1_ABORT 36
|
|
#define TRBE_EC_STAGE2_ABORT 37
|
|
|
|
static inline int get_trbe_ec(u64 trbsr)
|
|
{
|
|
return (trbsr >> TRBSR_EC_SHIFT) & TRBSR_EC_MASK;
|
|
}
|
|
|
|
#define TRBE_BSC_NOT_STOPPED 0
|
|
#define TRBE_BSC_FILLED 1
|
|
#define TRBE_BSC_TRIGGERED 2
|
|
|
|
static inline int get_trbe_bsc(u64 trbsr)
|
|
{
|
|
return (trbsr >> TRBSR_BSC_SHIFT) & TRBSR_BSC_MASK;
|
|
}
|
|
|
|
static inline void clr_trbe_irq(void)
|
|
{
|
|
u64 trbsr = read_sysreg_s(SYS_TRBSR_EL1);
|
|
|
|
trbsr &= ~TRBSR_IRQ;
|
|
write_sysreg_s(trbsr, SYS_TRBSR_EL1);
|
|
}
|
|
|
|
static inline bool is_trbe_irq(u64 trbsr)
|
|
{
|
|
return trbsr & TRBSR_IRQ;
|
|
}
|
|
|
|
static inline bool is_trbe_trg(u64 trbsr)
|
|
{
|
|
return trbsr & TRBSR_TRG;
|
|
}
|
|
|
|
static inline bool is_trbe_wrap(u64 trbsr)
|
|
{
|
|
return trbsr & TRBSR_WRAP;
|
|
}
|
|
|
|
static inline bool is_trbe_abort(u64 trbsr)
|
|
{
|
|
return trbsr & TRBSR_ABORT;
|
|
}
|
|
|
|
static inline bool is_trbe_running(u64 trbsr)
|
|
{
|
|
return !(trbsr & TRBSR_STOP);
|
|
}
|
|
|
|
#define TRBE_TRIG_MODE_STOP 0
|
|
#define TRBE_TRIG_MODE_IRQ 1
|
|
#define TRBE_TRIG_MODE_IGNORE 3
|
|
|
|
#define TRBE_FILL_MODE_FILL 0
|
|
#define TRBE_FILL_MODE_WRAP 1
|
|
#define TRBE_FILL_MODE_CIRCULAR_BUFFER 3
|
|
|
|
static inline bool get_trbe_flag_update(u64 trbidr)
|
|
{
|
|
return trbidr & TRBIDR_FLAG;
|
|
}
|
|
|
|
static inline bool is_trbe_programmable(u64 trbidr)
|
|
{
|
|
return !(trbidr & TRBIDR_PROG);
|
|
}
|
|
|
|
static inline int get_trbe_address_align(u64 trbidr)
|
|
{
|
|
return (trbidr >> TRBIDR_ALIGN_SHIFT) & TRBIDR_ALIGN_MASK;
|
|
}
|
|
|
|
static inline unsigned long get_trbe_write_pointer(void)
|
|
{
|
|
return read_sysreg_s(SYS_TRBPTR_EL1);
|
|
}
|
|
|
|
static inline void set_trbe_write_pointer(unsigned long addr)
|
|
{
|
|
WARN_ON(is_trbe_enabled());
|
|
write_sysreg_s(addr, SYS_TRBPTR_EL1);
|
|
}
|
|
|
|
static inline unsigned long get_trbe_limit_pointer(void)
|
|
{
|
|
u64 trblimitr = read_sysreg_s(SYS_TRBLIMITR_EL1);
|
|
unsigned long addr = trblimitr & (TRBLIMITR_LIMIT_MASK << TRBLIMITR_LIMIT_SHIFT);
|
|
|
|
WARN_ON(!IS_ALIGNED(addr, PAGE_SIZE));
|
|
return addr;
|
|
}
|
|
|
|
static inline unsigned long get_trbe_base_pointer(void)
|
|
{
|
|
u64 trbbaser = read_sysreg_s(SYS_TRBBASER_EL1);
|
|
unsigned long addr = trbbaser & (TRBBASER_BASE_MASK << TRBBASER_BASE_SHIFT);
|
|
|
|
WARN_ON(!IS_ALIGNED(addr, PAGE_SIZE));
|
|
return addr;
|
|
}
|
|
|
|
static inline void set_trbe_base_pointer(unsigned long addr)
|
|
{
|
|
WARN_ON(is_trbe_enabled());
|
|
WARN_ON(!IS_ALIGNED(addr, (1UL << TRBBASER_BASE_SHIFT)));
|
|
WARN_ON(!IS_ALIGNED(addr, PAGE_SIZE));
|
|
write_sysreg_s(addr, SYS_TRBBASER_EL1);
|
|
}
|