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Message-ID: <20240802155440.589821068@linutronix.de>
Date: Fri, 2 Aug 2024 18:15:41 +0200 (CEST)
From: Thomas Gleixner <tglx@...utronix.de>
To: LKML <linux-kernel@...r.kernel.org>
Cc: x86@...nel.org
Subject: [patch 06/15] x86/apic: Cleanup apic_printk()s
Use the new apic_pr_*() helpers and cleanup the apic_printk() maze.
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
arch/x86/kernel/apic/apic.c | 81 +++++++++++++++++++-------------------------
1 file changed, 35 insertions(+), 46 deletions(-)
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -677,7 +677,7 @@ calibrate_by_pmtimer(u32 deltapm, long *
return -1;
#endif
- apic_printk(APIC_VERBOSE, "... PM-Timer delta = %u\n", deltapm);
+ apic_pr_verbose("... PM-Timer delta = %u\n", deltapm);
/* Check, if the PM timer is available */
if (!deltapm)
@@ -687,14 +687,14 @@ calibrate_by_pmtimer(u32 deltapm, long *
if (deltapm > (pm_100ms - pm_thresh) &&
deltapm < (pm_100ms + pm_thresh)) {
- apic_printk(APIC_VERBOSE, "... PM-Timer result ok\n");
+ apic_pr_verbose("... PM-Timer result ok\n");
return 0;
}
res = (((u64)deltapm) * mult) >> 22;
do_div(res, 1000000);
- pr_warn("APIC calibration not consistent "
- "with PM-Timer: %ldms instead of 100ms\n", (long)res);
+ pr_warn("APIC calibration not consistent with PM-Timer: %ldms instead of 100ms\n",
+ (long)res);
/* Correct the lapic counter value */
res = (((u64)(*delta)) * pm_100ms);
@@ -707,9 +707,8 @@ calibrate_by_pmtimer(u32 deltapm, long *
if (boot_cpu_has(X86_FEATURE_TSC)) {
res = (((u64)(*deltatsc)) * pm_100ms);
do_div(res, deltapm);
- apic_printk(APIC_VERBOSE, "TSC delta adjusted to "
- "PM-Timer: %lu (%ld)\n",
- (unsigned long)res, *deltatsc);
+ apic_pr_verbose("TSC delta adjusted to PM-Timer: %lu (%ld)\n",
+ (unsigned long)res, *deltatsc);
*deltatsc = (long)res;
}
@@ -792,8 +791,7 @@ static int __init calibrate_APIC_clock(v
* in the clockevent structure and return.
*/
if (!lapic_init_clockevent()) {
- apic_printk(APIC_VERBOSE, "lapic timer already calibrated %d\n",
- lapic_timer_period);
+ apic_pr_verbose("lapic timer already calibrated %d\n", lapic_timer_period);
/*
* Direct calibration methods must have an always running
* local APIC timer, no need for broadcast timer.
@@ -802,8 +800,7 @@ static int __init calibrate_APIC_clock(v
return 0;
}
- apic_printk(APIC_VERBOSE, "Using local APIC timer interrupts.\n"
- "calibrating APIC timer ...\n");
+ apic_pr_verbose("Using local APIC timer interrupts. Calibrating APIC timer ...\n");
/*
* There are platforms w/o global clockevent devices. Instead of
@@ -866,7 +863,7 @@ static int __init calibrate_APIC_clock(v
/* Build delta t1-t2 as apic timer counts down */
delta = lapic_cal_t1 - lapic_cal_t2;
- apic_printk(APIC_VERBOSE, "... lapic delta = %ld\n", delta);
+ apic_pr_verbose("... lapic delta = %ld\n", delta);
deltatsc = (long)(lapic_cal_tsc2 - lapic_cal_tsc1);
@@ -877,22 +874,19 @@ static int __init calibrate_APIC_clock(v
lapic_timer_period = (delta * APIC_DIVISOR) / LAPIC_CAL_LOOPS;
lapic_init_clockevent();
- apic_printk(APIC_VERBOSE, "..... delta %ld\n", delta);
- apic_printk(APIC_VERBOSE, "..... mult: %u\n", lapic_clockevent.mult);
- apic_printk(APIC_VERBOSE, "..... calibration result: %u\n",
- lapic_timer_period);
+ apic_pr_verbose("..... delta %ld\n", delta);
+ apic_pr_verbose("..... mult: %u\n", lapic_clockevent.mult);
+ apic_pr_verbose("..... calibration result: %u\n", lapic_timer_period);
if (boot_cpu_has(X86_FEATURE_TSC)) {
- apic_printk(APIC_VERBOSE, "..... CPU clock speed is "
- "%ld.%04ld MHz.\n",
- (deltatsc / LAPIC_CAL_LOOPS) / (1000000 / HZ),
- (deltatsc / LAPIC_CAL_LOOPS) % (1000000 / HZ));
+ apic_pr_verbose("..... CPU clock speed is %ld.%04ld MHz.\n",
+ (deltatsc / LAPIC_CAL_LOOPS) / (1000000 / HZ),
+ (deltatsc / LAPIC_CAL_LOOPS) % (1000000 / HZ));
}
- apic_printk(APIC_VERBOSE, "..... host bus clock speed is "
- "%u.%04u MHz.\n",
- lapic_timer_period / (1000000 / HZ),
- lapic_timer_period % (1000000 / HZ));
+ apic_pr_verbose("..... host bus clock speed is %u.%04u MHz.\n",
+ lapic_timer_period / (1000000 / HZ),
+ lapic_timer_period % (1000000 / HZ));
/*
* Do a sanity check on the APIC calibration result
@@ -911,7 +905,7 @@ static int __init calibrate_APIC_clock(v
* available.
*/
if (!pm_referenced && global_clock_event) {
- apic_printk(APIC_VERBOSE, "... verify APIC timer\n");
+ apic_pr_verbose("... verify APIC timer\n");
/*
* Setup the apic timer manually
@@ -932,11 +926,11 @@ static int __init calibrate_APIC_clock(v
/* Jiffies delta */
deltaj = lapic_cal_j2 - lapic_cal_j1;
- apic_printk(APIC_VERBOSE, "... jiffies delta = %lu\n", deltaj);
+ apic_pr_verbose("... jiffies delta = %lu\n", deltaj);
/* Check, if the jiffies result is consistent */
if (deltaj >= LAPIC_CAL_LOOPS-2 && deltaj <= LAPIC_CAL_LOOPS+2)
- apic_printk(APIC_VERBOSE, "... jiffies result ok\n");
+ apic_pr_verbose("... jiffies result ok\n");
else
levt->features |= CLOCK_EVT_FEAT_DUMMY;
}
@@ -1221,9 +1215,8 @@ void __init sync_Arb_IDs(void)
*/
apic_wait_icr_idle();
- apic_printk(APIC_DEBUG, "Synchronizing Arb IDs.\n");
- apic_write(APIC_ICR, APIC_DEST_ALLINC |
- APIC_INT_LEVELTRIG | APIC_DM_INIT);
+ apic_pr_debug("Synchronizing Arb IDs.\n");
+ apic_write(APIC_ICR, APIC_DEST_ALLINC | APIC_INT_LEVELTRIG | APIC_DM_INIT);
}
enum apic_intr_mode_id apic_intr_mode __ro_after_init;
@@ -1409,10 +1402,10 @@ static void lapic_setup_esr(void)
if (maxlvt > 3)
apic_write(APIC_ESR, 0);
value = apic_read(APIC_ESR);
- if (value != oldvalue)
- apic_printk(APIC_VERBOSE, "ESR value before enabling "
- "vector: 0x%08x after: 0x%08x\n",
- oldvalue, value);
+ if (value != oldvalue) {
+ apic_pr_verbose("ESR value before enabling vector: 0x%08x after: 0x%08x\n",
+ oldvalue, value);
+ }
}
#define APIC_IR_REGS APIC_ISR_NR
@@ -1599,10 +1592,10 @@ static void setup_local_APIC(void)
value = apic_read(APIC_LVT0) & APIC_LVT_MASKED;
if (!cpu && (pic_mode || !value || ioapic_is_disabled)) {
value = APIC_DM_EXTINT;
- apic_printk(APIC_VERBOSE, "enabled ExtINT on CPU#%d\n", cpu);
+ apic_pr_verbose("Enabled ExtINT on CPU#%d\n", cpu);
} else {
value = APIC_DM_EXTINT | APIC_LVT_MASKED;
- apic_printk(APIC_VERBOSE, "masked ExtINT on CPU#%d\n", cpu);
+ apic_pr_verbose("Masked ExtINT on CPU#%d\n", cpu);
}
apic_write(APIC_LVT0, value);
@@ -2066,8 +2059,7 @@ static __init void apic_set_fixmap(bool
{
set_fixmap_nocache(FIX_APIC_BASE, mp_lapic_addr);
apic_mmio_base = APIC_BASE;
- apic_printk(APIC_VERBOSE, "mapped APIC to %16lx (%16lx)\n",
- apic_mmio_base, mp_lapic_addr);
+ apic_pr_verbose("Mapped APIC to %16lx (%16lx)\n", apic_mmio_base, mp_lapic_addr);
if (read_apic)
apic_read_boot_cpu_id(false);
}
@@ -2170,18 +2162,17 @@ DEFINE_IDTENTRY_SYSVEC(sysvec_error_inte
apic_eoi();
atomic_inc(&irq_err_count);
- apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x",
- smp_processor_id(), v);
+ apic_pr_debug("APIC error on CPU%d: %02x", smp_processor_id(), v);
v &= 0xff;
while (v) {
if (v & 0x1)
- apic_printk(APIC_DEBUG, KERN_CONT " : %s", error_interrupt_reason[i]);
+ apic_pr_debug_cont(" : %s", error_interrupt_reason[i]);
i++;
v >>= 1;
}
- apic_printk(APIC_DEBUG, KERN_CONT "\n");
+ apic_pr_debug_cont("\n");
trace_error_apic_exit(ERROR_APIC_VECTOR);
}
@@ -2201,8 +2192,7 @@ static void __init connect_bsp_APIC(void
* PIC mode, enable APIC mode in the IMCR, i.e. connect BSP's
* local APIC to INT and NMI lines.
*/
- apic_printk(APIC_VERBOSE, "leaving PIC mode, "
- "enabling APIC mode.\n");
+ apic_pr_verbose("Leaving PIC mode, enabling APIC mode.\n");
imcr_pic_to_apic();
}
#endif
@@ -2227,8 +2217,7 @@ void disconnect_bsp_APIC(int virt_wire_s
* IPIs, won't work beyond this point! The only exception are
* INIT IPIs.
*/
- apic_printk(APIC_VERBOSE, "disabling APIC mode, "
- "entering PIC mode.\n");
+ apic_pr_verbose("Disabling APIC mode, entering PIC mode.\n");
imcr_apic_to_pic();
return;
}
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