CC: [email protected] CC: [email protected] CC: [email protected] TO: Jason Ekstrand <[email protected]> CC: Daniel Vetter <[email protected]>
tree: git://anongit.freedesktop.org/drm-intel drm-intel-gt-next head: ca06f93638362bf83584cdf33897822bf1578cf9 commit: d4433c7600f794623d6802395542cf4ca4f1b1f9 [21/30] drm/i915/gem: Use the proto-context to handle create parameters (v5) :::::: branch date: 5 days ago :::::: commit date: 5 days ago config: x86_64-randconfig-m001-20210713 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> New smatch warnings: drivers/gpu/drm/i915/gem/i915_gem_context.c:605 set_proto_ctx_sseu() warn: potential spectre issue 'pc->user_engines' [r] (local cap) Old smatch warnings: drivers/gpu/drm/i915/gem/i915_gem_context.h:204 i915_gem_context_get_engine() warn: inconsistent indenting drivers/gpu/drm/i915/gem/i915_gem_context.h:206 i915_gem_context_get_engine() warn: inconsistent indenting drivers/gpu/drm/i915/gem/i915_gem_context.c:2627 get_sseu() warn: inconsistent returns '&ce->pin_mutex'. vim +605 drivers/gpu/drm/i915/gem/i915_gem_context.c d4433c7600f794 Jason Ekstrand 2021-07-08 569 d4433c7600f794 Jason Ekstrand 2021-07-08 570 static int set_proto_ctx_sseu(struct drm_i915_file_private *fpriv, d4433c7600f794 Jason Ekstrand 2021-07-08 571 struct i915_gem_proto_context *pc, d4433c7600f794 Jason Ekstrand 2021-07-08 572 struct drm_i915_gem_context_param *args) d4433c7600f794 Jason Ekstrand 2021-07-08 573 { d4433c7600f794 Jason Ekstrand 2021-07-08 574 struct drm_i915_private *i915 = fpriv->dev_priv; d4433c7600f794 Jason Ekstrand 2021-07-08 575 struct drm_i915_gem_context_param_sseu user_sseu; d4433c7600f794 Jason Ekstrand 2021-07-08 576 struct intel_sseu *sseu; d4433c7600f794 Jason Ekstrand 2021-07-08 577 int ret; d4433c7600f794 Jason Ekstrand 2021-07-08 578 d4433c7600f794 Jason Ekstrand 2021-07-08 579 if (args->size < sizeof(user_sseu)) d4433c7600f794 Jason Ekstrand 2021-07-08 580 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 581 d4433c7600f794 Jason Ekstrand 2021-07-08 582 if (GRAPHICS_VER(i915) != 11) d4433c7600f794 Jason Ekstrand 2021-07-08 583 return -ENODEV; d4433c7600f794 Jason Ekstrand 2021-07-08 584 d4433c7600f794 Jason Ekstrand 2021-07-08 585 if (copy_from_user(&user_sseu, u64_to_user_ptr(args->value), d4433c7600f794 Jason Ekstrand 2021-07-08 586 sizeof(user_sseu))) d4433c7600f794 Jason Ekstrand 2021-07-08 587 return -EFAULT; d4433c7600f794 Jason Ekstrand 2021-07-08 588 d4433c7600f794 Jason Ekstrand 2021-07-08 589 if (user_sseu.rsvd) d4433c7600f794 Jason Ekstrand 2021-07-08 590 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 591 d4433c7600f794 Jason Ekstrand 2021-07-08 592 if (user_sseu.flags & ~(I915_CONTEXT_SSEU_FLAG_ENGINE_INDEX)) d4433c7600f794 Jason Ekstrand 2021-07-08 593 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 594 d4433c7600f794 Jason Ekstrand 2021-07-08 595 if (!!(user_sseu.flags & I915_CONTEXT_SSEU_FLAG_ENGINE_INDEX) != (pc->num_user_engines >= 0)) d4433c7600f794 Jason Ekstrand 2021-07-08 596 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 597 d4433c7600f794 Jason Ekstrand 2021-07-08 598 if (pc->num_user_engines >= 0) { d4433c7600f794 Jason Ekstrand 2021-07-08 599 int idx = user_sseu.engine.engine_instance; d4433c7600f794 Jason Ekstrand 2021-07-08 600 struct i915_gem_proto_engine *pe; d4433c7600f794 Jason Ekstrand 2021-07-08 601 d4433c7600f794 Jason Ekstrand 2021-07-08 602 if (idx >= pc->num_user_engines) d4433c7600f794 Jason Ekstrand 2021-07-08 603 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 604 d4433c7600f794 Jason Ekstrand 2021-07-08 @605 pe = &pc->user_engines[idx]; d4433c7600f794 Jason Ekstrand 2021-07-08 606 d4433c7600f794 Jason Ekstrand 2021-07-08 607 /* Only render engine supports RPCS configuration. */ d4433c7600f794 Jason Ekstrand 2021-07-08 608 if (pe->engine->class != RENDER_CLASS) d4433c7600f794 Jason Ekstrand 2021-07-08 609 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 610 d4433c7600f794 Jason Ekstrand 2021-07-08 611 sseu = &pe->sseu; d4433c7600f794 Jason Ekstrand 2021-07-08 612 } else { d4433c7600f794 Jason Ekstrand 2021-07-08 613 /* Only render engine supports RPCS configuration. */ d4433c7600f794 Jason Ekstrand 2021-07-08 614 if (user_sseu.engine.engine_class != I915_ENGINE_CLASS_RENDER) d4433c7600f794 Jason Ekstrand 2021-07-08 615 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 616 d4433c7600f794 Jason Ekstrand 2021-07-08 617 /* There is only one render engine */ d4433c7600f794 Jason Ekstrand 2021-07-08 618 if (user_sseu.engine.engine_instance != 0) d4433c7600f794 Jason Ekstrand 2021-07-08 619 return -EINVAL; d4433c7600f794 Jason Ekstrand 2021-07-08 620 d4433c7600f794 Jason Ekstrand 2021-07-08 621 sseu = &pc->legacy_rcs_sseu; d4433c7600f794 Jason Ekstrand 2021-07-08 622 } d4433c7600f794 Jason Ekstrand 2021-07-08 623 d4433c7600f794 Jason Ekstrand 2021-07-08 624 ret = i915_gem_user_to_context_sseu(&i915->gt, &user_sseu, sseu); d4433c7600f794 Jason Ekstrand 2021-07-08 625 if (ret) d4433c7600f794 Jason Ekstrand 2021-07-08 626 return ret; d4433c7600f794 Jason Ekstrand 2021-07-08 627 d4433c7600f794 Jason Ekstrand 2021-07-08 628 args->size = sizeof(user_sseu); d4433c7600f794 Jason Ekstrand 2021-07-08 629 d4433c7600f794 Jason Ekstrand 2021-07-08 630 return 0; d4433c7600f794 Jason Ekstrand 2021-07-08 631 } d4433c7600f794 Jason Ekstrand 2021-07-08 632 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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