sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

acpi: Change Processor ACPI Name (Intel only)

Browse Source 
The ACPI Spec 2.0 states, that Processor declarations should be made
within the ACPI namespace \_SB and not \_PR anymore. \_PR is deprecated
and is removed here for Intel CPUs only.

Tested on:
* X11SSH (Kabylake)
* CFL Platform
* Asus P8Z77-V LX2 and Windows 10

FWTS does not return FAIL anymore on ACPI tests

Tested-by: Angel Pons <th3fanbus@gmail.com>
Change-Id: Ib101ed718f90f9056d2ecbc31b13b749ed1fc438
Signed-off-by: Christian Walter <christian.walter@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37814
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Christian Walter
2019-12-18 15:07:59 +01:00
committed by Nico Huber
parent 09eb8d0c9b
commit be3979c873
30 changed files with 140 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/soc/intel/skylake/acpi.c
View File

@@ -522,7 +522,7 @@ void generate_cpu_entries(struct device *device)
plen = 0;
}
/* Generate processor \_PR.CPUx */
/* Generate processor \_SB.CPUx */
acpigen_write_processor(
cpu_id*cores_per_package+core_id,
pcontrol_blk, plen);

10
src/soc/intel/skylake/acpi/dptf/cpu.asl
View File

@@ -20,7 +20,7 @@
#define DPTF_CPU_CRITICAL 90
#endif
External (\_PR.CP00._PSS, PkgObj)
External (\_SB.CP00._PSS, PkgObj)
External (\_SB.MPDL, IntObj)
Device (B0D4)
@@ -55,8 +55,8 @@ Device (B0D4)
Method (_PSS)
{
If (CondRefOf (\_PR.CP00._PSS)) {
Return (\_PR.CP00._PSS)
If (CondRefOf (\_SB.CP00._PSS)) {
Return (\_SB.CP00._PSS)
} Else {
Return (Package ()
{
@@ -71,8 +71,8 @@ Device (B0D4)
/* Check for mainboard specific _PDL override */
If (CondRefOf (\_SB.MPDL)) {
Return (\_SB.MPDL)
} ElseIf (CondRefOf (\_PR.CP00._PSS)) {
Store (SizeOf (\_PR.CP00._PSS), Local0)
} ElseIf (CondRefOf (\_SB.CP00._PSS)) {
Store (SizeOf (\_SB.CP00._PSS), Local0)
Decrement (Local0)
Return (Local0)
} Else {