From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@01.org, Chris Wilson <chris@chris-wilson.co.uk>
Cc: intel-gfx@lists.freedesktop.org, kbuild-all@01.org
Subject: Re: [Intel-gfx] [PATCH] drm/i915/selftests: Verify whitelist of context registers
Date: Tue, 16 Apr 2019 17:49:47 +0300 [thread overview]
Message-ID: <20190416144947.GA9395@kadam> (raw)
In-Reply-To: <20190415174155.11203-1-chris@chris-wilson.co.uk>
Hi Chris,
Thank you for the patch! Perhaps something to improve:
url: https://github.com/0day-ci/linux/commits/Chris-Wilson/drm-i915-selftests-Verify-whitelist-of-context-registers/20190416-105231
base: git://anongit.freedesktop.org/drm-intel for-linux-next
New smatch warnings:
drivers/gpu/drm/i915/selftests/intel_workarounds.c:846 scrub_whitelisted_registers() error: uninitialized symbol 'err'.
# https://github.com/0day-ci/linux/commit/a9ce77a003ecaa54f530f1e9ff81cbae11380380
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout a9ce77a003ecaa54f530f1e9ff81cbae11380380
vim +/PTR_ERR +759 drivers/gpu/drm/i915/selftests/intel_workarounds.c
a9ce77a0 Chris Wilson 2019-04-15 794 static int scrub_whitelisted_registers(struct i915_gem_context *ctx,
a9ce77a0 Chris Wilson 2019-04-15 795 struct intel_engine_cs *engine)
a9ce77a0 Chris Wilson 2019-04-15 796 {
a9ce77a0 Chris Wilson 2019-04-15 797 intel_wakeref_t wakeref;
a9ce77a0 Chris Wilson 2019-04-15 798 struct i915_request *rq;
a9ce77a0 Chris Wilson 2019-04-15 799 struct i915_vma *batch;
a9ce77a0 Chris Wilson 2019-04-15 800 int i, err;
a9ce77a0 Chris Wilson 2019-04-15 801 u32 *cs;
a9ce77a0 Chris Wilson 2019-04-15 802
a9ce77a0 Chris Wilson 2019-04-15 803 batch = create_batch(ctx);
a9ce77a0 Chris Wilson 2019-04-15 804 if (IS_ERR(batch))
a9ce77a0 Chris Wilson 2019-04-15 805 return PTR_ERR(batch);
a9ce77a0 Chris Wilson 2019-04-15 806
a9ce77a0 Chris Wilson 2019-04-15 807 cs = i915_gem_object_pin_map(batch->obj, I915_MAP_WC);
a9ce77a0 Chris Wilson 2019-04-15 808 if (IS_ERR(cs)) {
a9ce77a0 Chris Wilson 2019-04-15 809 err = PTR_ERR(cs);
a9ce77a0 Chris Wilson 2019-04-15 810 goto err_batch;
a9ce77a0 Chris Wilson 2019-04-15 811 }
a9ce77a0 Chris Wilson 2019-04-15 812
a9ce77a0 Chris Wilson 2019-04-15 813 *cs++ = MI_LOAD_REGISTER_IMM(engine->whitelist.count);
a9ce77a0 Chris Wilson 2019-04-15 814 for (i = 0; i < engine->whitelist.count; i++) {
a9ce77a0 Chris Wilson 2019-04-15 815 *cs++ = i915_mmio_reg_offset(engine->whitelist.list[i].reg);
a9ce77a0 Chris Wilson 2019-04-15 816 *cs++ = STACK_MAGIC;
a9ce77a0 Chris Wilson 2019-04-15 817 }
a9ce77a0 Chris Wilson 2019-04-15 818 *cs++ = MI_BATCH_BUFFER_END;
a9ce77a0 Chris Wilson 2019-04-15 819
a9ce77a0 Chris Wilson 2019-04-15 820 i915_gem_object_flush_map(batch->obj);
a9ce77a0 Chris Wilson 2019-04-15 821 i915_gem_chipset_flush(ctx->i915);
a9ce77a0 Chris Wilson 2019-04-15 822
a9ce77a0 Chris Wilson 2019-04-15 823 rq = ERR_PTR(-ENODEV);
a9ce77a0 Chris Wilson 2019-04-15 824 with_intel_runtime_pm(engine->i915, wakeref)
a9ce77a0 Chris Wilson 2019-04-15 825 rq = i915_request_alloc(engine, ctx);
a9ce77a0 Chris Wilson 2019-04-15 826 if (IS_ERR(rq))
a9ce77a0 Chris Wilson 2019-04-15 827 goto err_unpin;
^^^^^^^^^^^^^^
"err" not set.
a9ce77a0 Chris Wilson 2019-04-15 828
a9ce77a0 Chris Wilson 2019-04-15 829 if (engine->emit_init_breadcrumb) { /* Be nice if we hang */
a9ce77a0 Chris Wilson 2019-04-15 830 err = engine->emit_init_breadcrumb(rq);
a9ce77a0 Chris Wilson 2019-04-15 831 if (err)
a9ce77a0 Chris Wilson 2019-04-15 832 goto err_request;
a9ce77a0 Chris Wilson 2019-04-15 833 }
a9ce77a0 Chris Wilson 2019-04-15 834
a9ce77a0 Chris Wilson 2019-04-15 835 err = engine->emit_bb_start(rq, batch->node.start, 0, 0);
a9ce77a0 Chris Wilson 2019-04-15 836
a9ce77a0 Chris Wilson 2019-04-15 837 err_request:
a9ce77a0 Chris Wilson 2019-04-15 838 i915_request_add(rq);
a9ce77a0 Chris Wilson 2019-04-15 839 if (i915_request_wait(rq, I915_WAIT_LOCKED, HZ / 5) < 0)
a9ce77a0 Chris Wilson 2019-04-15 840 err = -EIO;
a9ce77a0 Chris Wilson 2019-04-15 841
a9ce77a0 Chris Wilson 2019-04-15 842 err_unpin:
a9ce77a0 Chris Wilson 2019-04-15 843 i915_gem_object_unpin_map(batch->obj);
a9ce77a0 Chris Wilson 2019-04-15 844 err_batch:
a9ce77a0 Chris Wilson 2019-04-15 845 i915_vma_unpin_and_release(&batch, 0);
a9ce77a0 Chris Wilson 2019-04-15 @846 return err;
a9ce77a0 Chris Wilson 2019-04-15 847 }
a9ce77a0 Chris Wilson 2019-04-15 848
next prev parent reply other threads:[~2019-04-16 14:49 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-15 16:00 [PATCH 1/4] drm/i915: Verify workarounds immediately after application Chris Wilson
2019-04-15 16:00 ` [PATCH 2/4] drm/i915: Verify the engine workarounds stick on application Chris Wilson
2019-04-15 16:00 ` [PATCH 3/4] drm/i915: Make workaround verification *optional* Chris Wilson
2019-04-15 16:00 ` [PATCH 4/4] drm/i915/selftests: Verify whitelist of context registers Chris Wilson
2019-04-15 17:41 ` [PATCH] " Chris Wilson
2019-04-16 14:49 ` Dan Carpenter [this message]
2019-04-15 16:59 ` ✗ Fi.CI.BAT: failure for series starting with [1/4] drm/i915: Verify workarounds immediately after application Patchwork
2019-04-15 18:33 ` ✗ Fi.CI.BAT: failure for series starting with [1/4] drm/i915: Verify workarounds immediately after application (rev2) Patchwork
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