cpu/x86: Introduce and use `CPU_X86_LAPIC`

With using a Kconfig option to add the x86 LAPIC support code to the
build, there's no need for adding the corresponding directory to subdirs
in the CPU/SoC Makefile. Comparing which CPU/SoC Makefiles added
(cpu/)x86/mtrr and (cpu/)x86/lapic before this and the corresponding
MTRR code selection patch and having verified that all platforms
added the MTRR code on that patch shows that soc/example/min86 and
soc/intel/quark are the only platforms that don't end up selecting the
LAPIC code. So for now the default value of CPU_X86_LAPIC is chosen as y
which gets overridden to n in the Kconfig of the two SoCs mentioned
above.

Change-Id: I6f683ea7ba92c91117017ebc6ad063ec54902b0a
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44228
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>

14 files changed, 4 insertions, 13 deletions

diff --git a/src/soc/intel/alderlake/Makefile.inc b/src/soc/intel/alderlake/Makefile.inc
index bd554b995a..d857e8b59b 100644
--- a/src/soc/intel/alderlake/Makefile.inc
+++ b/src/soc/intel/alderlake/Makefile.inc
@@ -2,7 +2,6 @@ ifeq ($(CONFIG_SOC_INTEL_ALDERLAKE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 # all (bootblock, verstage, romstage, postcar, ramstage)
 all-y += gspi.c
diff --git a/src/soc/intel/apollolake/Makefile.inc b/src/soc/intel/apollolake/Makefile.inc
index 3a723dcbb3..a557d1ea40 100644
--- a/src/soc/intel/apollolake/Makefile.inc
+++ b/src/soc/intel/apollolake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_APOLLOLAKE),y)
 subdirs-y += ../../../cpu/intel/common
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 bootblock-y += bootblock/bootblock.c
 bootblock-y += ../common/block/cpu/pm_timer_emulation.c
diff --git a/src/soc/intel/baytrail/Makefile.inc b/src/soc/intel/baytrail/Makefile.inc
index 33aaba0d8f..2bd558d5da 100644
--- a/src/soc/intel/baytrail/Makefile.inc
+++ b/src/soc/intel/baytrail/Makefile.inc
@@ -1,7 +1,6 @@
 ifeq ($(CONFIG_SOC_INTEL_BAYTRAIL),y)
 
 subdirs-y += romstage
-subdirs-y += ../../../cpu/x86/lapic
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
 subdirs-y += ../../../cpu/intel/common
diff --git a/src/soc/intel/braswell/Makefile.inc b/src/soc/intel/braswell/Makefile.inc
index 07bd26fe26..4ecb4e79f1 100644
--- a/src/soc/intel/braswell/Makefile.inc
+++ b/src/soc/intel/braswell/Makefile.inc
@@ -1,7 +1,6 @@
 ifeq ($(CONFIG_SOC_INTEL_BRASWELL),y)
 
 subdirs-y += romstage
-subdirs-y += ../../../cpu/x86/lapic
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
 subdirs-y += ../../../cpu/intel/common
diff --git a/src/soc/intel/cannonlake/Makefile.inc b/src/soc/intel/cannonlake/Makefile.inc
index bc15e1f025..3c8bf5798a 100644
--- a/src/soc/intel/cannonlake/Makefile.inc
+++ b/src/soc/intel/cannonlake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_CANNONLAKE_BASE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 subdirs-y += ../../../cpu/intel/common
 
 bootblock-y += bootblock/bootblock.c
diff --git a/src/soc/intel/denverton_ns/Makefile.inc b/src/soc/intel/denverton_ns/Makefile.inc
index 3fdff0d197..5d9b32773b 100644
--- a/src/soc/intel/denverton_ns/Makefile.inc
+++ b/src/soc/intel/denverton_ns/Makefile.inc
@@ -4,7 +4,6 @@ ifeq ($(CONFIG_SOC_INTEL_DENVERTON_NS),y)
 
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 bootblock-y += bootblock/bootblock.c
 bootblock-y += spi.c
diff --git a/src/soc/intel/elkhartlake/Makefile.inc b/src/soc/intel/elkhartlake/Makefile.inc
index c32ba1f245..3ac46ef2b2 100644
--- a/src/soc/intel/elkhartlake/Makefile.inc
+++ b/src/soc/intel/elkhartlake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_ELKHARTLAKE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 # all (bootblock, verstage, romstage, postcar, ramstage)
 all-y += gspi.c
diff --git a/src/soc/intel/icelake/Makefile.inc b/src/soc/intel/icelake/Makefile.inc
index 847418de1c..90c3036a8b 100644
--- a/src/soc/intel/icelake/Makefile.inc
+++ b/src/soc/intel/icelake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_ICELAKE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 # all (bootblock, verstage, romstage, postcar, ramstage)
 all-y += gspi.c
diff --git a/src/soc/intel/jasperlake/Makefile.inc b/src/soc/intel/jasperlake/Makefile.inc
index 276f3c0cd5..d718dd875f 100644
--- a/src/soc/intel/jasperlake/Makefile.inc
+++ b/src/soc/intel/jasperlake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_JASPERLAKE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 # all (bootblock, verstage, romstage, postcar, ramstage)
 all-y += gspi.c
diff --git a/src/soc/intel/quark/Kconfig b/src/soc/intel/quark/Kconfig
index 1a9bfef942..bf9d475cd5 100644
--- a/src/soc/intel/quark/Kconfig
+++ b/src/soc/intel/quark/Kconfig
@@ -24,6 +24,10 @@ config CPU_SPECIFIC_OPTIONS
 	select USE_MARCH_586
 	select NO_SMM
 
+config CPU_X86_LAPIC
+	bool
+	default n
+
 #####
 # Debug serial output
 #     The following options configure the debug serial port
diff --git a/src/soc/intel/skylake/Makefile.inc b/src/soc/intel/skylake/Makefile.inc
index 775bec1ce6..ea96caada7 100644
--- a/src/soc/intel/skylake/Makefile.inc
+++ b/src/soc/intel/skylake/Makefile.inc
@@ -5,7 +5,6 @@ subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/common
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 bootblock-y += bootblock/bootblock.c
 bootblock-y += i2c.c
diff --git a/src/soc/intel/tigerlake/Makefile.inc b/src/soc/intel/tigerlake/Makefile.inc
index 9e5a3c8231..6da5e00713 100644
--- a/src/soc/intel/tigerlake/Makefile.inc
+++ b/src/soc/intel/tigerlake/Makefile.inc
@@ -3,7 +3,6 @@ ifeq ($(CONFIG_SOC_INTEL_TIGERLAKE),y)
 subdirs-y += romstage
 subdirs-y += ../../../cpu/intel/microcode
 subdirs-y += ../../../cpu/intel/turbo
-subdirs-y += ../../../cpu/x86/lapic
 
 # all (bootblock, verstage, romstage, postcar, ramstage)
 all-y += gspi.c
diff --git a/src/soc/intel/xeon_sp/cpx/Makefile.inc b/src/soc/intel/xeon_sp/cpx/Makefile.inc
index ef38ce8acc..0cd267b712 100644
--- a/src/soc/intel/xeon_sp/cpx/Makefile.inc
+++ b/src/soc/intel/xeon_sp/cpx/Makefile.inc
@@ -3,7 +3,6 @@
 ifeq ($(CONFIG_SOC_INTEL_COOPERLAKE_SP),y)
 
 subdirs-y += ../../../../cpu/intel/turbo
-subdirs-y += ../../../../cpu/x86/lapic
 subdirs-y += ../../../../cpu/intel/microcode
 
 romstage-y += romstage.c ddr.c
diff --git a/src/soc/intel/xeon_sp/skx/Makefile.inc b/src/soc/intel/xeon_sp/skx/Makefile.inc
index b0714d4ef7..f7599a34c1 100644
--- a/src/soc/intel/xeon_sp/skx/Makefile.inc
+++ b/src/soc/intel/xeon_sp/skx/Makefile.inc
@@ -4,7 +4,6 @@ ifeq ($(CONFIG_SOC_INTEL_SKYLAKE_SP),y)
 
 subdirs-y += ../../../../cpu/intel/microcode
 subdirs-y += ../../../../cpu/intel/turbo
-subdirs-y += ../../../../cpu/x86/lapic
 
 postcar-y += soc_util.c