f1e1ddc3d9
This is triggered only if BIOS configures ACPI_BITREG_BUS_MASTER_RLD aka BRLD_EN_BM to 1. Rationale: 1. we do not support C3 on PIIX4E 2. bus master activity need not break out of C2 state 3. because of CPU_QUIRK_NO_BM_CTRL quirk we may reset bus master status which would result in immediate break out from C2 So if you have seen cpu0: too many short sleeps, backing off to C1 with this chipset before you may want to try cx_lowest of C2 again. Reviewed by: rpaulo (mentor), njl Approved by: rpaulo (mentor) |
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| .. | ||
| Osd | ||
| acpi_acad.c | ||
| acpi_battery.c | ||
| acpi_button.c | ||
| acpi_cmbat.c | ||
| acpi_cpu.c | ||
| acpi_dock.c | ||
| acpi_ec.c | ||
| acpi_hpet.c | ||
| acpi_hpet.h | ||
| acpi_if.m | ||
| acpi_isab.c | ||
| acpi_lid.c | ||
| acpi_package.c | ||
| acpi_pci_link.c | ||
| acpi_pci.c | ||
| acpi_pcib_acpi.c | ||
| acpi_pcib_pci.c | ||
| acpi_pcib.c | ||
| acpi_pcibvar.h | ||
| acpi_perf.c | ||
| acpi_powerres.c | ||
| acpi_quirk.c | ||
| acpi_quirks | ||
| acpi_resource.c | ||
| acpi_smbat.c | ||
| acpi_smbus.h | ||
| acpi_thermal.c | ||
| acpi_throttle.c | ||
| acpi_timer.c | ||
| acpi_video.c | ||
| acpi.c | ||
| acpiio.h | ||
| acpivar.h | ||