Quoting Jani Nikula (2019-04-03 14:32:36)
> The below commits added dummy files to test that certain headers are
> self-contained, i.e. compilable as standalone units:
>
> 39e2f501c1b4 ("drm/i915: Split struct intel_context definition to its own header")
> 3a891a626794 ("drm/i915: Move intel_engine_mask_t around for use by i915_request_types.h")
> 8b74594aa455 ("drm/i915: Split out i915_priolist_types into its own header")
>
> The idea is fine, but the implementation is a bit tedious and
> inflexible, and does not really scale well.
>
> Implement the same in make using autogenerated dummy sources to include
> the headers.
>
> v2 by Chris:
> - Use patsubst
> - Add .gitignore
> - Add clean-files for generated dummy sources
>
> v3 by Jani:
> - Fix make clean
> - Add the tests to i915-y instead of extra-y
>
> Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
> ---
> drivers/gpu/drm/i915/.gitignore | 1 +
> drivers/gpu/drm/i915/Makefile | 16 ++++---------
> drivers/gpu/drm/i915/Makefile.header-test | 23 +++++++++++++++++++
> .../i915/test_i915_active_types_standalone.c | 7 ------
> .../test_i915_gem_context_types_standalone.c | 7 ------
> .../test_i915_priolist_types_standalone.c | 7 ------
> .../test_i915_scheduler_types_standalone.c | 7 ------
> .../test_i915_timeline_types_standalone.c | 7 ------
> .../test_intel_context_types_standalone.c | 7 ------
> .../i915/test_intel_engine_types_standalone.c | 7 ------
> .../test_intel_workarounds_types_standalone.c | 7 ------
> 11 files changed, 28 insertions(+), 68 deletions(-)
> create mode 100644 drivers/gpu/drm/i915/.gitignore
> create mode 100644 drivers/gpu/drm/i915/Makefile.header-test
> delete mode 100644 drivers/gpu/drm/i915/test_i915_active_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_i915_gem_context_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_i915_priolist_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_i915_scheduler_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_i915_timeline_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_intel_context_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_intel_engine_types_standalone.c
> delete mode 100644 drivers/gpu/drm/i915/test_intel_workarounds_types_standalone.c
>
> diff --git a/drivers/gpu/drm/i915/.gitignore b/drivers/gpu/drm/i915/.gitignore
> new file mode 100644
> index 000000..cff45d
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/.gitignore
> @@ -0,0 +1 @@
> +header_test_*.c
> diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
> index 30bf33..fbcb0904 100644
> --- a/drivers/gpu/drm/i915/Makefile
> +++ b/drivers/gpu/drm/i915/Makefile
> @@ -32,10 +32,13 @@ CFLAGS_intel_fbdev.o = $(call cc-disable-warning, override-init)
> subdir-ccflags-y += \
> $(call as-instr,movntdqa (%eax)$(comma)%xmm0,-DCONFIG_AS_MOVNTDQA)
>
> +# Extra header tests
> +include $(src)/Makefile.header-test
> +
> # Please keep these build lists sorted!
>
> # core driver code
> -i915-y := i915_drv.o \
> +i915-y += i915_drv.o \
> i915_irq.o \
> i915_memcpy.o \
> i915_mm.o \
> @@ -57,17 +60,6 @@ i915-$(CONFIG_COMPAT) += i915_ioc32.o
> i915-$(CONFIG_DEBUG_FS) += i915_debugfs.o intel_pipe_crc.o
> i915-$(CONFIG_PERF_EVENTS) += i915_pmu.o
>
> -# Test the headers are compilable as standalone units
> -i915-$(CONFIG_DRM_I915_WERROR) += \
> - test_i915_active_types_standalone.o \
> - test_i915_gem_context_types_standalone.o \
> - test_i915_priolist_types_standalone.o \
> - test_i915_scheduler_types_standalone.o \
> - test_i915_timeline_types_standalone.o \
> - test_intel_context_types_standalone.o \
> - test_intel_engine_types_standalone.o \
> - test_intel_workarounds_types_standalone.o
> -
> # GEM code
> i915-y += \
> i915_active.o \
> diff --git a/drivers/gpu/drm/i915/Makefile.header-test b/drivers/gpu/drm/i915/Makefile.header-test
> new file mode 100644
> index 000000..e984cf
> --- /dev/null
> +++ b/drivers/gpu/drm/i915/Makefile.header-test
> @@ -0,0 +1,23 @@
> +# SPDX-License-Identifier: MIT
> +# Copyright © 2019 Intel Corporation
> +
> +# Test the headers are compilable as standalone units
> +header_test := \
> + i915_active_types.h \
> + i915_gem_context_types.h \
> + i915_priolist_types.h \
> + i915_scheduler_types.h \
> + i915_timeline_types.h \
> + intel_context_types.h \
> + intel_engine_types.h \
> + intel_workarounds_types.h
> +
> +quiet_cmd_header_test = HDRTEST $@
Did you look at the output alignment? v1 needed a bit of a tweak to look
good here.
> + cmd_header_test = echo "\#include \"$(<F)\"" > $@
> +
> +header_test_%.c: %.h
> + $(call cmd,header_test)
> +
> +i915-$(CONFIG_DRM_I915_WERROR) += $(foreach h,$(header_test),$(patsubst %.h,header_test_%.o,$(h)))
> +
> +clean-files += $(foreach h,$(header_test),$(patsubst %.h,header_test_%.c,$(h)))
Magic. Pure magic. Much thanks.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> #v2 if you insist
Reviewed-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
-Chris
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
