Displaying 2 results from an estimated 2 matches for "acpi_set_register".
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acpi_pct_register
2013 Nov 11
1
[PATCH] x86/idle: reduce contention on ACPI register accesses
...= power->safe_state;
if ( cx->idx > max_cstate )
cx = &power->states[max_cstate];
@@ -563,8 +563,8 @@ static void acpi_processor_idle(void)
{
/* Enable bus master arbitration */
spin_lock(&c3_cpu_status.lock);
- acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
- c3_cpu_status.count--;
+ if ( c3_cpu_status.count-- == num_online_cpus() )
+ acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
spin_unlock(&c3_cpu_status.lock);
}
@@ -821,12 +821,10 @@ static int check_cx(s...
2012 May 04
2
Problem with ethernet card: r8169.
...>] __do_IRQ+0x0/0x118
May 3 16:05:27 ms7a kernel: [<c04074c4>] do_IRQ+0x9b/0xc3
May 3 16:05:27 ms7a kernel: [<c040597a>] common_interrupt+0x1a/0x20
May 3 16:05:27 ms7a kernel: [<c05339f3>]
acpi_processor_idle_simple+0x174/0x297
May 3 16:05:27 ms7a kernel: [<c0522a21>] acpi_set_register+0x14c/0x155
May 3 16:05:27 ms7a kernel: [<c0403d14>] cpu_idle+0x9f/0xb9
May 3 16:05:27 ms7a kernel: =======================
May 3 16:05:27 ms7a kernel: handlers:
May 3 16:05:27 ms7a kernel: [<f89710d9>] (rtl8169_interrupt+0x0/0x232
[r8169])
May 3 16:05:27 ms7a kernel: Disabling IRQ...