Hi Chris,
[auto build test WARNING on next-20151009 -- if it's inappropriate base, please ignore]
reproduce: make htmldocs
All warnings (new ones prefixed by >>):
include/drm/drm_crtc.h:1162: warning: No description found for parameter 'dirty_info_property'
include/drm/drm_crtc.h:1162: warning: No description found for parameter 'suggested_x_property'
include/drm/drm_crtc.h:1162: warning: No description found for parameter 'suggested_y_property'
include/drm/drm_crtc.h:1162: warning: No description found for parameter 'allow_fb_modifiers'
include/drm/drm_fb_helper.h:148: warning: No description found for parameter 'connector_info'
include/drm/drm_dp_helper.h:713: warning: No description found for parameter 'i2c_nack_count'
include/drm/drm_dp_helper.h:713: warning: No description found for parameter 'i2c_defer_count'
drivers/gpu/drm/drm_dp_mst_topology.c:2226: warning: No description found for parameter 'connector'
include/drm/drm_dp_mst_helper.h:97: warning: No description found for parameter 'cached_edid'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'max_dpcd_transaction_bytes'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'sink_count'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'total_slots'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'avail_slots'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'total_pbn'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'qlock'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_msg_downq'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_msg_upq'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_down_in_progress'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_up_in_progress'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'payload_lock'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'proposed_vcpis'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'payloads'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'payload_mask'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'vcpi_mask'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_waitq'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'work'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'tx_work'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'destroy_connector_list'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'destroy_connector_lock'
include/drm/drm_dp_mst_helper.h:471: warning: No description found for parameter 'destroy_connector_work'
drivers/gpu/drm/drm_dp_mst_topology.c:2226: warning: No description found for parameter 'connector'
drivers/gpu/drm/drm_irq.c:173: warning: No description found for parameter 'flags'
include/drm/drmP.h:164: warning: No description found for parameter 'fmt'
include/drm/drmP.h:180: warning: No description found for parameter 'fmt'
include/drm/drmP.h:198: warning: No description found for parameter 'fmt'
include/drm/drmP.h:238: warning: No description found for parameter 'dev'
include/drm/drmP.h:238: warning: No description found for parameter 'data'
include/drm/drmP.h:238: warning: No description found for parameter 'file_priv'
include/drm/drmP.h:271: warning: No description found for parameter 'ioctl'
include/drm/drmP.h:271: warning: No description found for parameter '_func'
include/drm/drmP.h:271: warning: No description found for parameter '_flags'
include/drm/drmP.h:344: warning: cannot understand function prototype: 'struct drm_lock_data '
include/drm/drmP.h:397: warning: cannot understand function prototype: 'struct drm_driver '
include/drm/drmP.h:647: warning: cannot understand function prototype: 'struct drm_info_list '
include/drm/drmP.h:657: warning: cannot understand function prototype: 'struct drm_info_node '
include/drm/drmP.h:667: warning: cannot understand function prototype: 'struct drm_minor '
include/drm/drmP.h:715: warning: cannot understand function prototype: 'struct drm_device '
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'wedged'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'fmt'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'wedged'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'fmt'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'wedged'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'fmt'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'wedged'
drivers/gpu/drm/i915/i915_irq.c:2582: warning: No description found for parameter 'fmt'
drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:421: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:686: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:686: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:686: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:767: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:767: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:767: warning: No description found for parameter 'args'
drivers/gpu/drm/i915/i915_gem.c:767: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:1029: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:1029: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:1029: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:1194: warning: No description found for parameter 'rps'
drivers/gpu/drm/i915/i915_gem.c:1400: warning: No description found for parameter 'req'
drivers/gpu/drm/i915/i915_gem.c:1435: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:1435: warning: No description found for parameter 'readonly'
drivers/gpu/drm/i915/i915_gem.c:1558: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:1558: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:1558: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:1621: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:1621: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:1621: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:1666: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:1666: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:1666: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:1954: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:1954: warning: No description found for parameter 'size'
drivers/gpu/drm/i915/i915_gem.c:1954: warning: No description found for parameter 'tiling_mode'
drivers/gpu/drm/i915/i915_gem.c:1954: warning: No description found for parameter 'fenced'
drivers/gpu/drm/i915/i915_gem.c:1954: warning: Excess function parameter 'obj' description in 'i915_gem_get_gtt_alignment'
drivers/gpu/drm/i915/i915_gem.c:2816: warning: No description found for parameter 'ring'
drivers/gpu/drm/i915/i915_gem.c:2945: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:2995: warning: No description found for parameter 'dev'
drivers/gpu/drm/i915/i915_gem.c:2995: warning: No description found for parameter 'data'
drivers/gpu/drm/i915/i915_gem.c:2995: warning: No description found for parameter 'file'
drivers/gpu/drm/i915/i915_gem.c:2995: warning: Excess function parameter 'DRM_IOCTL_ARGS' description in 'i915_gem_wait_ioctl'
drivers/gpu/drm/i915/i915_gem.c:3364: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:3364: warning: No description found for parameter 'vm'
drivers/gpu/drm/i915/i915_gem.c:3364: warning: No description found for parameter 'ggtt_view'
drivers/gpu/drm/i915/i915_gem.c:3364: warning: No description found for parameter 'alignment'
drivers/gpu/drm/i915/i915_gem.c:3364: warning: No description found for parameter 'flags'
drivers/gpu/drm/i915/i915_gem.c:3599: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:3599: warning: No description found for parameter 'write'
drivers/gpu/drm/i915/i915_gem.c:3674: warning: No description found for parameter 'obj'
>> drivers/gpu/drm/i915/i915_gem.c:3674: warning: No description found for parameter 'cache_level'
drivers/gpu/drm/i915/i915_gem.c:3948: warning: No description found for parameter 'obj'
drivers/gpu/drm/i915/i915_gem.c:3948: warning: No description found for parameter 'write'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: No description found for parameter 'params'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'dev' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'file' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'ring' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'ctx' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'batch_obj' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'exec_start' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'dispatch_flags' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: No description found for parameter 'params'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'dev' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'file' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'ring' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'ctx' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'batch_obj' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'exec_start' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_lrc.c:871: warning: Excess function parameter 'dispatch_flags' description in 'intel_execlists_submission'
drivers/gpu/drm/i915/intel_guc_loader.c:1: warning: no structured comments found
Was looking for 'GuC-specific firmware loader'.
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: No description found for parameter 'rq'
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: Excess function parameter 'ctx' description in 'i915_guc_submit'
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: Excess function parameter 'ring' description in 'i915_guc_submit'
drivers/gpu/drm/i915/i915_guc_submission.c:741: warning: No description found for parameter 'ctx'
drivers/gpu/drm/i915/i915_guc_submission.c:1: warning: no structured comments found
Was looking for 'GuC-based command submissison'.
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: No description found for parameter 'rq'
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: Excess function parameter 'ctx' description in 'i915_guc_submit'
drivers/gpu/drm/i915/i915_guc_submission.c:598: warning: Excess function parameter 'ring' description in 'i915_guc_submit'
drivers/gpu/drm/i915/i915_guc_submission.c:741: warning: No description found for parameter 'ctx'
Warning: didn't use docs for i915_hotplug_interrupt_update
Warning: didn't use docs for ilk_update_display_irq
Warning: didn't use docs for ilk_update_gt_irq
Warning: didn't use docs for snb_update_pm_irq
Warning: didn't use docs for bdw_update_port_irq
Warning: didn't use docs for ibx_display_interrupt_update
Warning: didn't use docs for i915_enable_asle_pipestat
Warning: didn't use docs for ivybridge_parity_work
Warning: didn't use docs for i915_reset_and_wakeup
Warning: didn't use docs for i915_handle_error
Warning: didn't use docs for intel_irq_install
Warning: didn't use docs for intel_irq_uninstall
vim +/cache_level +3674 drivers/gpu/drm/i915/i915_gem.c
e47c68e9 Eric Anholt 2008-11-14 3658
fc05080c Chris Wilson 2015-10-09 3659 /**
fc05080c Chris Wilson 2015-10-09 3660 * Changes the cache-level of an object across all VMA.
fc05080c Chris Wilson 2015-10-09 3661 *
fc05080c Chris Wilson 2015-10-09 3662 * After this function returns, the object will be in the new cache-level
fc05080c Chris Wilson 2015-10-09 3663 * across all GTT and the contents of the backing storage will be coherent,
fc05080c Chris Wilson 2015-10-09 3664 * with respect to the new cache-level. In order to keep the backing storage
fc05080c Chris Wilson 2015-10-09 3665 * coherent for all users, we only allow a single cache level to be set
fc05080c Chris Wilson 2015-10-09 3666 * globally on the object and prevent it from being changed whilst the
fc05080c Chris Wilson 2015-10-09 3667 * hardware is reading from the object. That is if the object is currently
fc05080c Chris Wilson 2015-10-09 3668 * on the scanout it will be set to uncached (or equivalent display
fc05080c Chris Wilson 2015-10-09 3669 * cache coherency) and all non-MOCS GPU access will also be uncached so
fc05080c Chris Wilson 2015-10-09 3670 * that all direct access to the scanout remains coherent.
fc05080c Chris Wilson 2015-10-09 3671 */
e4ffd173 Chris Wilson 2011-04-04 3672 int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
e4ffd173 Chris Wilson 2011-04-04 3673 enum i915_cache_level cache_level)
e4ffd173 Chris Wilson 2011-04-04 @3674 {
7bddb01f Daniel Vetter 2012-02-09 3675 struct drm_device *dev = obj->base.dev;
df6f783a Chris Wilson 2014-03-21 3676 struct i915_vma *vma, *next;
fc05080c Chris Wilson 2015-10-09 3677 bool bound = false;
ed75a55b Ville Syrjälä 2015-08-11 3678 int ret = 0;
e4ffd173 Chris Wilson 2011-04-04 3679
e4ffd173 Chris Wilson 2011-04-04 3680 if (obj->cache_level == cache_level)
ed75a55b Ville Syrjälä 2015-08-11 3681 goto out;
e4ffd173 Chris Wilson 2011-04-04 3682
:::::: The code at line 3674 was first introduced by commit
:::::: e4ffd173a1c2f96b43127c2537dd99d89e759bba drm/i915: Add an interface to dynamically change the cache level
:::::: TO: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
:::::: CC: Keith Packard <keithp@xxxxxxxxxx>
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