summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorMark Brown <broonie@kernel.org>2022-05-03 18:02:30 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2022-05-04 15:30:28 +0100
commitc07d8017bceb82cbe5fedd129d072c59a53f5513 (patch)
tree30a81cc7a684bbea0795df092eb832f7632cdf6e /arch
parent66847e0618d7dcaf34d9626e2b1f699fc05a2fef (diff)
downloadlinux-c07d8017bceb82cbe5fedd129d072c59a53f5513.tar.bz2
arm64/sysreg: Enable automatic generation of system register definitions
Now that we have a script for generating system registers hook it up to the build system similarly to cpucaps. Since we don't currently have any actual register information in the input file this should produce no change in the built kernel. For ease of review the register information will be converted in separate patches. Signed-off-by: Mark Brown <broonie@kernel.org> Acked-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20220503170233.507788-10-broonie@kernel.org Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm64/include/asm/Kbuild1
-rw-r--r--arch/arm64/include/asm/sysreg.h8
-rw-r--r--arch/arm64/tools/Makefile8
3 files changed, 16 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 345fe98605ba..5c8ee5a541d2 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -7,3 +7,4 @@ generic-y += parport.h
generic-y += user.h
generated-y += cpucaps.h
+generated-y += sysreg-defs.h
diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index ae440b1ffb8e..db07a01776d8 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -115,6 +115,14 @@
#define SYS_DC_CISW sys_insn(1, 0, 7, 14, 2)
/*
+ * Automatically generated definitions for system registers, the
+ * manual encodings below are in the process of being converted to
+ * come from here. The header relies on the definition of sys_reg()
+ * earlier in this file.
+ */
+#include "asm/sysreg-defs.h"
+
+/*
* System registers, organised loosely by encoding but grouped together
* where the architected name contains an index. e.g. ID_MMFR<n>_EL1.
*/
diff --git a/arch/arm64/tools/Makefile b/arch/arm64/tools/Makefile
index cf1307188150..07a93ab21a62 100644
--- a/arch/arm64/tools/Makefile
+++ b/arch/arm64/tools/Makefile
@@ -3,7 +3,7 @@
gen := arch/$(ARCH)/include/generated
kapi := $(gen)/asm
-kapi-hdrs-y := $(kapi)/cpucaps.h
+kapi-hdrs-y := $(kapi)/cpucaps.h $(kapi)/sysreg-defs.h
targets += $(addprefix ../../../, $(kapi-hdrs-y))
@@ -14,5 +14,11 @@ kapi: $(kapi-hdrs-y)
quiet_cmd_gen_cpucaps = GEN $@
cmd_gen_cpucaps = mkdir -p $(dir $@); $(AWK) -f $(real-prereqs) > $@
+quiet_cmd_gen_sysreg = GEN $@
+ cmd_gen_sysreg = mkdir -p $(dir $@); $(AWK) -f $(real-prereqs) > $@
+
$(kapi)/cpucaps.h: $(src)/gen-cpucaps.awk $(src)/cpucaps FORCE
$(call if_changed,gen_cpucaps)
+
+$(kapi)/sysreg-defs.h: $(src)/gen-sysreg.awk $(src)/sysreg FORCE
+ $(call if_changed,gen_sysreg)