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| author | Marc Jones <marcj303@gmail.com> | 2017-08-23 16:28:02 -0600 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2017-08-29 15:58:48 +0000 |
| commit | e013df9a6701198de71cd65ab62343fc187c8219 (patch) | |
| tree | 231b706b6fa22e2441efdfd236666be7d1a57e0a /src/soc/amd/stoneyridge/acpi.c | |
| parent | 7a2d4ea4eeb8c75c26bfb2c40e1ba0d4adb16e57 (diff) | |
amd/stoneyridge: Change ACPI _PR.CPxx to _PR.Pxxx
This is a bug introduced by this commit:
stoneyridge: Fix CPU ASL \_PR table [commit I870f81]
The following error is found in dmesg
ACPI Error: [\_PR_.P000] Namespace lookup failure, AE_NOT_FOUND...
ACPI Exception: AE_NOT_FOUND, During name lookup/catalog...
ACPI Exception: AE_NOT_FOUND, (SSDT:AGESA ) while loading table...
ACPI Error: 1 table load failures, 3 successful...
...
acpi-cpufreq: overriding BIOS provided _PSD data
And, "ls -la /sys/devices/system/cpu/cpufreq/" doesn't work
The cause is that the Pstate SSDT table generated by AGESA expects CPU
variables \_PR.Pxxx, not \_PR.CPxx as generated by coreboot.
Use Kconfig to set the required string.
BRANCH=none
BUG=b:64885241
TEST= Check dmeg and ls -la /sys/devices/system/cpu/cpufreq/
Change-Id: I4929f9a1c39705c6df9d965c8d030f4d1f0b5e5f
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/21165
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/soc/amd/stoneyridge/acpi.c')
| -rw-r--r-- | src/soc/amd/stoneyridge/acpi.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/src/soc/amd/stoneyridge/acpi.c b/src/soc/amd/stoneyridge/acpi.c index 9788a91153..78fd4b71d1 100644 --- a/src/soc/amd/stoneyridge/acpi.c +++ b/src/soc/amd/stoneyridge/acpi.c @@ -244,12 +244,11 @@ void generate_cpu_entries(device_t device) printk(BIOS_DEBUG, "ACPI \\_PR report %d core(s)\n", cores); - - /* Generate BSP \_PR.CPU0 */ + /* Generate BSP \_PR.P000 */ acpigen_write_processor(0, pcontrol_blk, plen); acpigen_pop_len(); - /* Generate AP \_PR.CPUx */ + /* Generate AP \_PR.Pxxx */ pcontrol_blk = 0; plen = 0; for (cpu = 1; cpu < cores; cpu++) { |