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mirror_ubuntu-kernels/drivers/gpu/drm/i915/Makefile
Linus Torvalds 50560ce6a0 Kbuild -std=gnu11 updates for v5.18 
Linus pointed out the benefits of C99 some years ago, especially variable
 declarations in loops [1]. At that time, we were not ready for the
 migration due to old compilers.
 
 Recently, Jakob Koschel reported a bug in list_for_each_entry(), which
 leaks the invalid pointer out of the loop [2]. In the discussion, we
 agreed that the time had come. Now that GCC 5.1 is the minimum compiler
 version, there is nothing to prevent us from going to -std=gnu99, or even
 straight to -std=gnu11.
 
 Discussions for a better list iterator implementation are ongoing, but
 this patch set must land first.
 
 [1] https://lore.kernel.org/all/CAHk-=wgr12JkKmRd21qh-se-_Gs69kbPgR9x4C+Es-yJV2GLkA@mail.gmail.com/
 [2] https://lore.kernel.org/lkml/86C4CE7D-6D93-456B-AA82-F8ADEACA40B7@gmail.com/
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Merge tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild update for C11 language base from Masahiro Yamada:
 "Kbuild -std=gnu11 updates for v5.18

  Linus pointed out the benefits of C99 some years ago, especially
  variable declarations in loops [1]. At that time, we were not ready
  for the migration due to old compilers.

  Recently, Jakob Koschel reported a bug in list_for_each_entry(), which
  leaks the invalid pointer out of the loop [2]. In the discussion, we
  agreed that the time had come. Now that GCC 5.1 is the minimum
  compiler version, there is nothing to prevent us from going to
  -std=gnu99, or even straight to -std=gnu11.

  Discussions for a better list iterator implementation are ongoing, but
  this patch set must land first"

[1] https://lore.kernel.org/all/CAHk-=wgr12JkKmRd21qh-se-_Gs69kbPgR9x4C+Es-yJV2GLkA@mail.gmail.com/
[2] https://lore.kernel.org/lkml/86C4CE7D-6D93-456B-AA82-F8ADEACA40B7@gmail.com/

* tag 'kbuild-gnu11-v5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  Kbuild: use -std=gnu11 for KBUILD_USERCFLAGS
  Kbuild: move to -std=gnu11
  Kbuild: use -Wdeclaration-after-statement
  Kbuild: add -Wno-shift-negative-value where -Wextra is used
2022-03-25 11:48:01 -07:00

346 lines
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Makefile
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# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
# Add a set of useful warning flags and enable -Werror for CI to prevent
# trivial mistakes from creeping in. We have to do this piecemeal as we reject
# any patch that isn't warning clean, so turning on -Wall -Wextra (or W=1) we
# need to filter out dubious warnings. Still it is our interest
# to keep running locally with W=1 C=1 until we are completely clean.
#
# Note the danger in using -Wall -Wextra is that when CI updates gcc we
# will most likely get a sudden build breakage... Hopefully we will fix
# new warnings before CI updates!
subdir-ccflags-y := -Wall -Wextra
subdir-ccflags-y += -Wno-format-security
subdir-ccflags-y += -Wno-unused-parameter
subdir-ccflags-y += -Wno-type-limits
subdir-ccflags-y += -Wno-missing-field-initializers
subdir-ccflags-y += -Wno-sign-compare
subdir-ccflags-y += -Wno-shift-negative-value
subdir-ccflags-y += $(call cc-disable-warning, unused-but-set-variable)
subdir-ccflags-y += $(call cc-disable-warning, frame-address)
subdir-ccflags-$(CONFIG_DRM_I915_WERROR) += -Werror
# Fine grained warnings disable
CFLAGS_i915_pci.o = $(call cc-disable-warning, override-init)
CFLAGS_display/intel_fbdev.o = $(call cc-disable-warning, override-init)
subdir-ccflags-y += -I$(srctree)/$(src)
# Please keep these build lists sorted!
# core driver code
i915-y += i915_driver.o \
i915_config.o \
i915_getparam.o \
i915_ioctl.o \
i915_irq.o \
i915_mitigations.o \
i915_module.o \
i915_params.o \
i915_pci.o \
i915_scatterlist.o \
i915_suspend.o \
i915_switcheroo.o \
i915_sysfs.o \
i915_utils.o \
intel_device_info.o \
intel_dram.o \
intel_memory_region.o \
intel_pch.o \
intel_pcode.o \
intel_pm.o \
intel_region_ttm.o \
intel_runtime_pm.o \
intel_sbi.o \
intel_step.o \
intel_uncore.o \
intel_wakeref.o \
vlv_sideband.o \
vlv_suspend.o
# core library code
i915-y += \
i915_memcpy.o \
i915_mm.o \
i915_sw_fence.o \
i915_sw_fence_work.o \
i915_syncmap.o \
i915_user_extensions.o
i915-$(CONFIG_COMPAT) += i915_ioc32.o
i915-$(CONFIG_DEBUG_FS) += \
i915_debugfs.o \
i915_debugfs_params.o \
display/intel_display_debugfs.o \
display/intel_pipe_crc.o
i915-$(CONFIG_PERF_EVENTS) += i915_pmu.o
# "Graphics Technology" (aka we talk to the gpu)
gt-y += \
gt/gen2_engine_cs.o \
gt/gen6_engine_cs.o \
gt/gen6_ppgtt.o \
gt/gen7_renderclear.o \
gt/gen8_engine_cs.o \
gt/gen8_ppgtt.o \
gt/intel_breadcrumbs.o \
gt/intel_context.o \
gt/intel_context_sseu.o \
gt/intel_engine_cs.o \
gt/intel_engine_heartbeat.o \
gt/intel_engine_pm.o \
gt/intel_engine_user.o \
gt/intel_execlists_submission.o \
gt/intel_ggtt.o \
gt/intel_ggtt_fencing.o \
gt/intel_gt.o \
gt/intel_gt_buffer_pool.o \
gt/intel_gt_clock_utils.o \
gt/intel_gt_debugfs.o \
gt/intel_gt_engines_debugfs.o \
gt/intel_gt_irq.o \
gt/intel_gt_pm.o \
gt/intel_gt_pm_debugfs.o \
gt/intel_gt_pm_irq.o \
gt/intel_gt_requests.o \
gt/intel_gtt.o \
gt/intel_llc.o \
gt/intel_lrc.o \
gt/intel_migrate.o \
gt/intel_mocs.o \
gt/intel_ppgtt.o \
gt/intel_rc6.o \
gt/intel_region_lmem.o \
gt/intel_renderstate.o \
gt/intel_reset.o \
gt/intel_ring.o \
gt/intel_ring_submission.o \
gt/intel_rps.o \
gt/intel_sseu.o \
gt/intel_sseu_debugfs.o \
gt/intel_timeline.o \
gt/intel_workarounds.o \
gt/shmem_utils.o \
gt/sysfs_engines.o
# autogenerated null render state
gt-y += \
gt/gen6_renderstate.o \
gt/gen7_renderstate.o \
gt/gen8_renderstate.o \
gt/gen9_renderstate.o
i915-y += $(gt-y)
# GEM (Graphics Execution Management) code
gem-y += \
gem/i915_gem_busy.o \
gem/i915_gem_clflush.o \
gem/i915_gem_context.o \
gem/i915_gem_create.o \
gem/i915_gem_dmabuf.o \
gem/i915_gem_domain.o \
gem/i915_gem_execbuffer.o \
gem/i915_gem_internal.o \
gem/i915_gem_object.o \
gem/i915_gem_lmem.o \
gem/i915_gem_mman.o \
gem/i915_gem_pages.o \
gem/i915_gem_phys.o \
gem/i915_gem_pm.o \
gem/i915_gem_region.o \
gem/i915_gem_shmem.o \
gem/i915_gem_shrinker.o \
gem/i915_gem_stolen.o \
gem/i915_gem_throttle.o \
gem/i915_gem_tiling.o \
gem/i915_gem_ttm.o \
gem/i915_gem_ttm_move.o \
gem/i915_gem_ttm_pm.o \
gem/i915_gem_userptr.o \
gem/i915_gem_wait.o \
gem/i915_gemfs.o
i915-y += \
$(gem-y) \
i915_active.o \
i915_cmd_parser.o \
i915_deps.o \
i915_gem_evict.o \
i915_gem_gtt.o \
i915_gem_ww.o \
i915_gem.o \
i915_query.o \
i915_request.o \
i915_scheduler.o \
i915_trace_points.o \
i915_ttm_buddy_manager.o \
i915_vma.o \
i915_vma_resource.o \
intel_wopcm.o
# general-purpose microcontroller (GuC) support
i915-y += gt/uc/intel_uc.o \
gt/uc/intel_uc_debugfs.o \
gt/uc/intel_uc_fw.o \
gt/uc/intel_guc.o \
gt/uc/intel_guc_ads.o \
gt/uc/intel_guc_ct.o \
gt/uc/intel_guc_debugfs.o \
gt/uc/intel_guc_fw.o \
gt/uc/intel_guc_log.o \
gt/uc/intel_guc_log_debugfs.o \
gt/uc/intel_guc_rc.o \
gt/uc/intel_guc_slpc.o \
gt/uc/intel_guc_submission.o \
gt/uc/intel_huc.o \
gt/uc/intel_huc_debugfs.o \
gt/uc/intel_huc_fw.o
# modesetting core code
i915-y += \
display/hsw_ips.o \
display/intel_atomic.o \
display/intel_atomic_plane.o \
display/intel_audio.o \
display/intel_bios.o \
display/intel_bw.o \
display/intel_cdclk.o \
display/intel_color.o \
display/intel_combo_phy.o \
display/intel_connector.o \
display/intel_crtc.o \
display/intel_cursor.o \
display/intel_display.o \
display/intel_display_power.o \
display/intel_dmc.o \
display/intel_dpio_phy.o \
display/intel_dpll.o \
display/intel_dpll_mgr.o \
display/intel_dpt.o \
display/intel_drrs.o \
display/intel_dsb.o \
display/intel_fb.o \
display/intel_fb_pin.o \
display/intel_fbc.o \
display/intel_fdi.o \
display/intel_fifo_underrun.o \
display/intel_frontbuffer.o \
display/intel_global_state.o \
display/intel_hdcp.o \
display/intel_hotplug.o \
display/intel_lpe_audio.o \
display/intel_overlay.o \
display/intel_pch_display.o \
display/intel_pch_refclk.o \
display/intel_plane_initial.o \
display/intel_psr.o \
display/intel_quirks.o \
display/intel_sprite.o \
display/intel_tc.o \
display/intel_vga.o \
display/i9xx_plane.o \
display/skl_scaler.o \
display/skl_universal_plane.o
i915-$(CONFIG_ACPI) += \
display/intel_acpi.o \
display/intel_opregion.o
i915-$(CONFIG_DRM_FBDEV_EMULATION) += \
display/intel_fbdev.o
# modesetting output/encoder code
i915-y += \
display/dvo_ch7017.o \
display/dvo_ch7xxx.o \
display/dvo_ivch.o \
display/dvo_ns2501.o \
display/dvo_sil164.o \
display/dvo_tfp410.o \
display/g4x_dp.o \
display/g4x_hdmi.o \
display/icl_dsi.o \
display/intel_backlight.o \
display/intel_crt.o \
display/intel_ddi.o \
display/intel_ddi_buf_trans.o \
display/intel_display_trace.o \
display/intel_dp.o \
display/intel_dp_aux.o \
display/intel_dp_aux_backlight.o \
display/intel_dp_hdcp.o \
display/intel_dp_link_training.o \
display/intel_dp_mst.o \
display/intel_dsi.o \
display/intel_dsi_dcs_backlight.o \
display/intel_dsi_vbt.o \
display/intel_dvo.o \
display/intel_gmbus.o \
display/intel_hdmi.o \
display/intel_lspcon.o \
display/intel_lvds.o \
display/intel_panel.o \
display/intel_pps.o \
display/intel_qp_tables.o \
display/intel_sdvo.o \
display/intel_snps_phy.o \
display/intel_tv.o \
display/intel_vdsc.o \
display/intel_vrr.o \
display/vlv_dsi.o \
display/vlv_dsi_pll.o
i915-y += i915_perf.o
# Protected execution platform (PXP) support
i915-$(CONFIG_DRM_I915_PXP) += \
pxp/intel_pxp.o \
pxp/intel_pxp_cmd.o \
pxp/intel_pxp_debugfs.o \
pxp/intel_pxp_irq.o \
pxp/intel_pxp_pm.o \
pxp/intel_pxp_session.o \
pxp/intel_pxp_tee.o
# Post-mortem debug and GPU hang state capture
i915-$(CONFIG_DRM_I915_CAPTURE_ERROR) += i915_gpu_error.o
i915-$(CONFIG_DRM_I915_SELFTEST) += \
gem/selftests/i915_gem_client_blt.o \
gem/selftests/igt_gem_utils.o \
selftests/intel_scheduler_helpers.o \
selftests/i915_random.o \
selftests/i915_selftest.o \
selftests/igt_atomic.o \
selftests/igt_flush_test.o \
selftests/igt_live_test.o \
selftests/igt_mmap.o \
selftests/igt_reset.o \
selftests/igt_spinner.o \
selftests/librapl.o
# virtual gpu code
i915-y += i915_vgpu.o
ifeq ($(CONFIG_DRM_I915_GVT),y)
i915-y += intel_gvt.o
include $(src)/gvt/Makefile
endif
obj-$(CONFIG_DRM_I915) += i915.o
obj-$(CONFIG_DRM_I915_GVT_KVMGT) += gvt/kvmgt.o
# header test
# exclude some broken headers from the test coverage
no-header-test := \
display/intel_vbt_defs.h
always-$(CONFIG_DRM_I915_WERROR) += \
$(patsubst %.h,%.hdrtest, $(filter-out $(no-header-test), \
$(shell cd $(srctree)/$(src) && find * -name '*.h')))
quiet_cmd_hdrtest = HDRTEST $(patsubst %.hdrtest,%.h,$@)
cmd_hdrtest = $(CC) $(filter-out $(CFLAGS_GCOV), $(c_flags)) -S -o /dev/null -x c /dev/null -include $<; touch $@
$(obj)/%.hdrtest: $(src)/%.h FORCE
$(call if_changed_dep,hdrtest)
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