linux/drivers/gpu/drm/i915/Makefile
Chris Wilson fa545cbf97 drm/i915: Refactor activity tracking for requests
With the introduction of requests, we amplified the number of atomic
refcounted objects we use and update every execbuffer; from none to
several references, and a set of references that need to be changed. We
also introduced interesting side-effects in the order of retiring
requests and objects.

Instead of independently tracking the last request for an object, track
the active objects for each request. The object will reside in the
buffer list of its most recent active request and so we reduce the kref
interchange to a list_move. Now retirements are entirely driven by the
request, dramatically simplifying activity tracking on the object
themselves, and removing the ambiguity between retiring objects and
retiring requests.

Furthermore with the consolidation of managing the activity tracking
centrally, we can look forward to using RCU to enable lockless lookup of
the current active requests for an object. In the future, we will be
able to query the status or wait upon rendering to an object without
even touching the struct_mutex BKL.

All told, less code, simpler and faster, and more extensible.

v2: Add a typedef for the function pointer for convenience later.
v3: Make the noop retirement callback explicit. Allow passing NULL to
the init_request_active() which is expanded to a common noop function.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470293567-10811-16-git-send-email-chris@chris-wilson.co.uk
2016-08-04 08:09:25 +01:00

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Makefile

#
# Makefile for the drm device driver. This driver provides support for the
# Direct Rendering Infrastructure (DRI) in XFree86 4.1.0 and higher.
subdir-ccflags-$(CONFIG_DRM_I915_WERROR) := -Werror
# Please keep these build lists sorted!
# core driver code
i915-y := i915_drv.o \
i915_irq.o \
i915_params.o \
i915_pci.o \
i915_suspend.o \
i915_sysfs.o \
intel_csr.o \
intel_device_info.o \
intel_pm.o \
intel_runtime_pm.o
i915-$(CONFIG_COMPAT) += i915_ioc32.o
i915-$(CONFIG_DEBUG_FS) += i915_debugfs.o
# GEM code
i915-y += i915_cmd_parser.o \
i915_gem_batch_pool.o \
i915_gem_context.o \
i915_gem_dmabuf.o \
i915_gem_evict.o \
i915_gem_execbuffer.o \
i915_gem_fence.o \
i915_gem_gtt.o \
i915_gem.o \
i915_gem_render_state.o \
i915_gem_request.o \
i915_gem_shrinker.o \
i915_gem_stolen.o \
i915_gem_tiling.o \
i915_gem_userptr.o \
i915_gpu_error.o \
i915_trace_points.o \
intel_breadcrumbs.o \
intel_engine_cs.o \
intel_lrc.o \
intel_mocs.o \
intel_ringbuffer.o \
intel_uncore.o
# general-purpose microcontroller (GuC) support
i915-y += intel_guc_loader.o \
i915_guc_submission.o
# autogenerated null render state
i915-y += intel_renderstate_gen6.o \
intel_renderstate_gen7.o \
intel_renderstate_gen8.o \
intel_renderstate_gen9.o
# modesetting core code
i915-y += intel_audio.o \
intel_atomic.o \
intel_atomic_plane.o \
intel_bios.o \
intel_color.o \
intel_display.o \
intel_dpio_phy.o \
intel_dpll_mgr.o \
intel_fbc.o \
intel_fifo_underrun.o \
intel_frontbuffer.o \
intel_hotplug.o \
intel_modes.o \
intel_overlay.o \
intel_psr.o \
intel_sideband.o \
intel_sprite.o
i915-$(CONFIG_ACPI) += intel_acpi.o intel_opregion.o
i915-$(CONFIG_DRM_FBDEV_EMULATION) += intel_fbdev.o
# modesetting output/encoder code
i915-y += dvo_ch7017.o \
dvo_ch7xxx.o \
dvo_ivch.o \
dvo_ns2501.o \
dvo_sil164.o \
dvo_tfp410.o \
intel_crt.o \
intel_ddi.o \
intel_dp_aux_backlight.o \
intel_dp_link_training.o \
intel_dp_mst.o \
intel_dp.o \
intel_dsi.o \
intel_dsi_dcs_backlight.o \
intel_dsi_panel_vbt.o \
intel_dsi_pll.o \
intel_dvo.o \
intel_hdmi.o \
intel_i2c.o \
intel_lvds.o \
intel_panel.o \
intel_sdvo.o \
intel_tv.o
# virtual gpu code
i915-y += i915_vgpu.o
ifeq ($(CONFIG_DRM_I915_GVT),y)
i915-y += intel_gvt.o
include $(src)/gvt/Makefile
endif
obj-$(CONFIG_DRM_I915) += i915.o
CFLAGS_i915_trace_points.o := -I$(src)