[PATCH v3] drm/i915/gem: Make i915_gem_shrinker multi-gt aware
kernel test robot
lkp at intel.com
Tue Sep 26 03:47:28 UTC 2023
Hi Nirmoy,
kernel test robot noticed the following build errors:
[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-intel/for-linux-next-fixes drm-tip/drm-tip drm/drm-next drm-exynos/exynos-drm-next drm-misc/drm-misc-next linus/master v6.6-rc3 next-20230925]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Nirmoy-Das/drm-i915-gem-Make-i915_gem_shrinker-multi-gt-aware/20230926-020533
base: git://anongit.freedesktop.org/drm-intel for-linux-next
patch link: https://lore.kernel.org/r/20230925171048.19245-1-nirmoy.das%40intel.com
patch subject: [PATCH v3] drm/i915/gem: Make i915_gem_shrinker multi-gt aware
config: i386-randconfig-016-20230926 (https://download.01.org/0day-ci/archive/20230926/202309261109.t06eiy08-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230926/202309261109.t06eiy08-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202309261109.t06eiy08-lkp@intel.com/
All errors (new ones prefixed by >>):
drivers/gpu/drm/i915/gem/i915_gem_shrinker.c: In function 'i915_gem_shrink':
>> drivers/gpu/drm/i915/gem/i915_gem_shrinker.c:152:12: error: suggest explicit braces to avoid ambiguous 'else' [-Werror=dangling-else]
152 | if (shrink & I915_SHRINK_ACTIVE)
| ^
cc1: all warnings being treated as errors
vim +/else +152 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
2d6692e642e7ca drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2019-04-20 75
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 76 /**
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 77 * i915_gem_shrink - Shrink buffer object caches
772f7bb75dffd4 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-04-21 78 * @ww: i915 gem ww acquire ctx, or NULL
56fa4bf2b2f084 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-11-23 79 * @i915: i915 device
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 80 * @target: amount of memory to make available, in pages
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 81 * @nr_scanned: optional output for number of pages scanned (incremental)
70972f51819a22 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-12 82 * @shrink: control flags for selecting cache types
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 83 *
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 84 * This function is the main interface to the shrinker. It will try to release
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 85 * up to @target pages of main memory backing storage from buffer objects.
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 86 * Selection of the specific caches can be done with @flags. This is e.g. useful
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 87 * when purgeable objects should be removed from caches preferentially.
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 88 *
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 89 * Note that it's not guaranteed that released amount is actually available as
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 90 * free system memory - the pages might still be in-used to due to other reasons
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 91 * (like cpu mmaps) or the mm core has reused them before we could grab them.
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 92 * Therefore code that needs to explicitly shrink buffer objects caches (e.g. to
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 93 * avoid deadlocks in memory reclaim) must fall back to i915_gem_shrink_all().
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 94 *
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 95 * Also note that any kind of pinning (both per-vma address space pins and
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 96 * backing storage pins at the buffer object level) result in the shrinker code
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 97 * having to skip the object.
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 98 *
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 99 * Returns:
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 100 * The number of pages of backing storage actually released.
eb0b44adc08c0b drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 101 */
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 102 unsigned long
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 103 i915_gem_shrink(struct i915_gem_ww_ctx *ww,
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 104 struct drm_i915_private *i915,
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 105 unsigned long target,
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 106 unsigned long *nr_scanned,
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 107 unsigned int shrink)
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 108 {
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 109 const struct {
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 110 struct list_head *list;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 111 unsigned int bit;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 112 } phases[] = {
3b4fa9640ccded drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-05-30 113 { &i915->mm.purge_list, ~0u },
ecab9be174d98f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-12 114 {
ecab9be174d98f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-12 115 &i915->mm.shrink_list,
ecab9be174d98f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-12 116 I915_SHRINK_BOUND | I915_SHRINK_UNBOUND
ecab9be174d98f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-12 117 },
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 118 { NULL, 0 },
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 119 }, *phase;
538ef96b9dae7f drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2019-01-14 120 intel_wakeref_t wakeref = 0;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 121 unsigned long count = 0;
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 122 unsigned long scanned = 0;
3f9a0aec85874f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Jonathan Cavitt 2023-09-25 123 int err = 0, i = 0;
3f9a0aec85874f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Jonathan Cavitt 2023-09-25 124 struct intel_gt *gt;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 125
bc6f80cce9ae7c drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-04-26 126 /* CHV + VTD workaround use stop_machine(); need to trylock vm->mutex */
bc6f80cce9ae7c drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-04-26 127 bool trylock_vm = !ww && intel_vm_no_concurrent_access_wa(i915);
bc6f80cce9ae7c drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-04-26 128
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 129 trace_i915_gem_shrink(i915, target, shrink);
3abafa539d2c17 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-10-01 130
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 131 /*
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 132 * Unbinding of objects will require HW access; Let us not wake the
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 133 * device just to recover a little memory. If absolutely necessary,
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 134 * we will force the wake during oom-notifier.
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 135 */
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 136 if (shrink & I915_SHRINK_BOUND) {
d858d5695f3897 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Daniele Ceraolo Spurio 2019-06-13 137 wakeref = intel_runtime_pm_get_if_in_use(&i915->runtime_pm);
538ef96b9dae7f drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2019-01-14 138 if (!wakeref)
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 139 shrink &= ~I915_SHRINK_BOUND;
538ef96b9dae7f drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2019-01-14 140 }
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 141
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 142 /*
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 143 * When shrinking the active list, we should also consider active
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 144 * contexts. Active contexts are pinned until they are retired, and
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 145 * so can not be simply unbound to retire and unpin their pages. To
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 146 * shrink the contexts, we must wait until the gpu is idle and
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 147 * completed its switch to the kernel context. In short, we do
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 148 * not have a good mechanism for idling a specific context, but
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 149 * what we can do is give them a kick so that we do not keep idle
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 150 * contexts around longer than is necessary.
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 151 */
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 @152 if (shrink & I915_SHRINK_ACTIVE)
3f9a0aec85874f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Jonathan Cavitt 2023-09-25 153 for_each_gt(gt, i915, i)
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 154 /* Retire requests to unpin all idle contexts */
3f9a0aec85874f drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Jonathan Cavitt 2023-09-25 155 intel_gt_retire_requests(gt);
09137e94543761 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2020-07-08 156
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 157 /*
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 158 * As we may completely rewrite the (un)bound list whilst unbinding
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 159 * (due to retiring requests) we have to strictly process only
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 160 * one element of the list at the time, and recheck the list
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 161 * on every iteration.
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 162 *
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 163 * In particular, we must hold a reference whilst removing the
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 164 * object as we may end up waiting for and/or retiring the objects.
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 165 * This might release the final reference (held by the active list)
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 166 * and result in the object being freed from under us. This is
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 167 * similar to the precautions the eviction code must take whilst
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 168 * removing objects.
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 169 *
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 170 * Also note that although these lists do not hold a reference to
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 171 * the object we can safely grab one here: The final object
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 172 * unreferencing and the bound_list are both protected by the
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 173 * dev->struct_mutex and so we won't ever be able to observe an
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 174 * object on the bound_list with a reference count equals 0.
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 175 */
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 176 for (phase = phases; phase->list; phase++) {
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 177 struct list_head still_in_list;
2a1d775201081c drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-07-26 178 struct drm_i915_gem_object *obj;
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 179 unsigned long flags;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 180
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 181 if ((shrink & phase->bit) == 0)
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 182 continue;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 183
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 184 INIT_LIST_HEAD(&still_in_list);
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 185
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 186 /*
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 187 * We serialize our access to unreferenced objects through
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 188 * the use of the struct_mutex. While the objects are not
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 189 * yet freed (due to RCU then a workqueue) we still want
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 190 * to be able to shrink their pages, so they remain on
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 191 * the unbound/bound list until actually freed.
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 192 */
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 193 spin_lock_irqsave(&i915->mm.obj_lock, flags);
2a1d775201081c drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-07-26 194 while (count < target &&
2a1d775201081c drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-07-26 195 (obj = list_first_entry_or_null(phase->list,
2a1d775201081c drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-07-26 196 typeof(*obj),
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 197 mm.link))) {
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 198 list_move_tail(&obj->mm.link, &still_in_list);
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 199
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 200 if (shrink & I915_SHRINK_VMAPS &&
a4f5ea64f0a818 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-10-28 201 !is_vmalloc_addr(obj->mm.mapping))
eae2c43b1233f8 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-04-08 202 continue;
eae2c43b1233f8 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-04-08 203
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 204 if (!(shrink & I915_SHRINK_ACTIVE) &&
c03467ba40f783 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-07-03 205 i915_gem_object_is_framebuffer(obj))
5763ff04dc4ebd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-10-01 206 continue;
5763ff04dc4ebd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-10-01 207
c1a415e261aad0 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-12-04 208 if (!can_release_pages(obj))
c1a415e261aad0 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-12-04 209 continue;
c1a415e261aad0 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2015-12-04 210
0bd6cb6b58f733 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-18 211 if (!kref_get_unless_zero(&obj->base.refcount))
0bd6cb6b58f733 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-18 212 continue;
0bd6cb6b58f733 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-18 213
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 214 spin_unlock_irqrestore(&i915->mm.obj_lock, flags);
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 215
7b7a119e8546e2 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-10-31 216 /* May arrive from get_pages on another bo */
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 217 if (!ww) {
d8be1357edc891 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-12-16 218 if (!i915_gem_object_trylock(obj, NULL))
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 219 goto skip;
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 220 } else {
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 221 err = i915_gem_object_lock(obj, ww);
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 222 if (err)
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 223 goto skip;
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 224 }
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 225
e4e80625300390 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-12-16 226 if (drop_pages(obj, shrink, trylock_vm) &&
e4e80625300390 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-12-16 227 !__i915_gem_object_put_pages(obj) &&
e4e80625300390 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-12-16 228 !try_to_writeback(obj, shrink))
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 229 count += obj->base.size >> PAGE_SHIFT;
e4e80625300390 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-12-16 230
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 231 if (!ww)
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 232 i915_gem_object_unlock(obj);
0bd6cb6b58f733 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-18 233
4e773c3a8a693e drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-13 234 scanned += obj->base.size >> PAGE_SHIFT;
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 235 skip:
0bd6cb6b58f733 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-18 236 i915_gem_object_put(obj);
f2123818ffad03 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-10-16 237
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 238 spin_lock_irqsave(&i915->mm.obj_lock, flags);
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 239 if (err)
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 240 break;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 241 }
535972771d8c99 drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2016-11-01 242 list_splice_tail(&still_in_list, phase->list);
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 243 spin_unlock_irqrestore(&i915->mm.obj_lock, flags);
cf41a8f1dc1e47 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-03-23 244 if (err)
239f3c2ee18376 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-07-28 245 break;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 246 }
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 247
a8cff4c8283af3 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Chris Wilson 2019-06-10 248 if (shrink & I915_SHRINK_BOUND)
d858d5695f3897 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Daniele Ceraolo Spurio 2019-06-13 249 intel_runtime_pm_put(&i915->runtime_pm, wakeref);
178a30c90ac74e drivers/gpu/drm/i915/i915_gem_shrinker.c Praveen Paneri 2016-05-02 250
239f3c2ee18376 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-07-28 251 if (err)
239f3c2ee18376 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-07-28 252 return err;
239f3c2ee18376 drivers/gpu/drm/i915/gem/i915_gem_shrinker.c Maarten Lankhorst 2021-07-28 253
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 254 if (nr_scanned)
912d572d63b8cd drivers/gpu/drm/i915/i915_gem_shrinker.c Chris Wilson 2017-09-06 255 *nr_scanned += scanned;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 256 return count;
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 257 }
be6a0376950475 drivers/gpu/drm/i915/i915_gem_shrinker.c Daniel Vetter 2015-03-18 258
--
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