On Fri, Aug 20, 2021 at 7:00 PM Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx> wrote:
>
> On Fri, Aug 20, 2021 at 05:49:32PM +0200, Daniel Vetter wrote:
> > In
> >
> > commit 8e02cceb1f1f4f254625e5338dd997ff61ab40d7
> > Author: Daniel Vetter <daniel.vetter@xxxxxxxx>
> > Date: Tue Aug 3 14:48:33 2021 +0200
> >
> > drm/i915: delete gpu reloc code
>
> it would be better with dim cite format...
>
> do we need the Fixes: tag?
I did delete the selftest, I just forgot to delete the code. So no
Fixes: imo. I'll bikeshed the commit citation.
> anyway:
>
> Reviewed-by: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
Thanks for the review, will merge when CI approves too, one never knows.
-Daniel
>
>
> >
> > I deleted the gpu relocation code and the selftest include and
> > enabling, but accidentally forgot about the selftest source code.
> >
> > Fix this oversight.
> >
> > Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxxx>
> > Cc: Jon Bloomfield <jon.bloomfield@xxxxxxxxx>
> > Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> > Cc: Maarten Lankhorst <maarten.lankhorst@xxxxxxxxxxxxxxx>
> > Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
> > Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> > Cc: "Thomas Hellström" <thomas.hellstrom@xxxxxxxxxxxxxxx>
> > Cc: Matthew Auld <matthew.auld@xxxxxxxxx>
> > Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
> > Cc: Dave Airlie <airlied@xxxxxxxxxx>
> > Cc: Jason Ekstrand <jason@xxxxxxxxxxxxxx>
> > ---
> > .../i915/gem/selftests/i915_gem_execbuffer.c | 190 ------------------
> > 1 file changed, 190 deletions(-)
> > delete mode 100644 drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c
> >
> > diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c
> > deleted file mode 100644
> > index 16162fc2782d..000000000000
> > --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_execbuffer.c
> > +++ /dev/null
> > @@ -1,190 +0,0 @@
> > -// SPDX-License-Identifier: MIT
> > -/*
> > - * Copyright © 2020 Intel Corporation
> > - */
> > -
> > -#include "i915_selftest.h"
> > -
> > -#include "gt/intel_engine_pm.h"
> > -#include "selftests/igt_flush_test.h"
> > -
> > -static u64 read_reloc(const u32 *map, int x, const u64 mask)
> > -{
> > - u64 reloc;
> > -
> > - memcpy(&reloc, &map[x], sizeof(reloc));
> > - return reloc & mask;
> > -}
> > -
> > -static int __igt_gpu_reloc(struct i915_execbuffer *eb,
> > - struct drm_i915_gem_object *obj)
> > -{
> > - const unsigned int offsets[] = { 8, 3, 0 };
> > - const u64 mask =
> > - GENMASK_ULL(eb->reloc_cache.use_64bit_reloc ? 63 : 31, 0);
> > - const u32 *map = page_mask_bits(obj->mm.mapping);
> > - struct i915_request *rq;
> > - struct i915_vma *vma;
> > - int err;
> > - int i;
> > -
> > - vma = i915_vma_instance(obj, eb->context->vm, NULL);
> > - if (IS_ERR(vma))
> > - return PTR_ERR(vma);
> > -
> > - err = i915_gem_object_lock(obj, &eb->ww);
> > - if (err)
> > - return err;
> > -
> > - err = i915_vma_pin_ww(vma, &eb->ww, 0, 0, PIN_USER | PIN_HIGH);
> > - if (err)
> > - return err;
> > -
> > - /* 8-Byte aligned */
> > - err = __reloc_entry_gpu(eb, vma, offsets[0] * sizeof(u32), 0);
> > - if (err <= 0)
> > - goto reloc_err;
> > -
> > - /* !8-Byte aligned */
> > - err = __reloc_entry_gpu(eb, vma, offsets[1] * sizeof(u32), 1);
> > - if (err <= 0)
> > - goto reloc_err;
> > -
> > - /* Skip to the end of the cmd page */
> > - i = PAGE_SIZE / sizeof(u32) - 1;
> > - i -= eb->reloc_cache.rq_size;
> > - memset32(eb->reloc_cache.rq_cmd + eb->reloc_cache.rq_size,
> > - MI_NOOP, i);
> > - eb->reloc_cache.rq_size += i;
> > -
> > - /* Force next batch */
> > - err = __reloc_entry_gpu(eb, vma, offsets[2] * sizeof(u32), 2);
> > - if (err <= 0)
> > - goto reloc_err;
> > -
> > - GEM_BUG_ON(!eb->reloc_cache.rq);
> > - rq = i915_request_get(eb->reloc_cache.rq);
> > - reloc_gpu_flush(eb, &eb->reloc_cache);
> > - GEM_BUG_ON(eb->reloc_cache.rq);
> > -
> > - err = i915_gem_object_wait(obj, I915_WAIT_INTERRUPTIBLE, HZ / 2);
> > - if (err) {
> > - intel_gt_set_wedged(eb->engine->gt);
> > - goto put_rq;
> > - }
> > -
> > - if (!i915_request_completed(rq)) {
> > - pr_err("%s: did not wait for relocations!\n", eb->engine->name);
> > - err = -EINVAL;
> > - goto put_rq;
> > - }
> > -
> > - for (i = 0; i < ARRAY_SIZE(offsets); i++) {
> > - u64 reloc = read_reloc(map, offsets[i], mask);
> > -
> > - if (reloc != i) {
> > - pr_err("%s[%d]: map[%d] %llx != %x\n",
> > - eb->engine->name, i, offsets[i], reloc, i);
> > - err = -EINVAL;
> > - }
> > - }
> > - if (err)
> > - igt_hexdump(map, 4096);
> > -
> > -put_rq:
> > - i915_request_put(rq);
> > -unpin_vma:
> > - i915_vma_unpin(vma);
> > - return err;
> > -
> > -reloc_err:
> > - if (!err)
> > - err = -EIO;
> > - goto unpin_vma;
> > -}
> > -
> > -static int igt_gpu_reloc(void *arg)
> > -{
> > - struct i915_execbuffer eb;
> > - struct drm_i915_gem_object *scratch;
> > - int err = 0;
> > - u32 *map;
> > -
> > - eb.i915 = arg;
> > -
> > - scratch = i915_gem_object_create_internal(eb.i915, 4096);
> > - if (IS_ERR(scratch))
> > - return PTR_ERR(scratch);
> > -
> > - map = i915_gem_object_pin_map_unlocked(scratch, I915_MAP_WC);
> > - if (IS_ERR(map)) {
> > - err = PTR_ERR(map);
> > - goto err_scratch;
> > - }
> > -
> > - intel_gt_pm_get(&eb.i915->gt);
> > -
> > - for_each_uabi_engine(eb.engine, eb.i915) {
> > - if (intel_engine_requires_cmd_parser(eb.engine) ||
> > - intel_engine_using_cmd_parser(eb.engine))
> > - continue;
> > -
> > - reloc_cache_init(&eb.reloc_cache, eb.i915);
> > - memset(map, POISON_INUSE, 4096);
> > -
> > - intel_engine_pm_get(eb.engine);
> > - eb.context = intel_context_create(eb.engine);
> > - if (IS_ERR(eb.context)) {
> > - err = PTR_ERR(eb.context);
> > - goto err_pm;
> > - }
> > - eb.reloc_pool = NULL;
> > - eb.reloc_context = NULL;
> > -
> > - i915_gem_ww_ctx_init(&eb.ww, false);
> > -retry:
> > - err = intel_context_pin_ww(eb.context, &eb.ww);
> > - if (!err) {
> > - err = __igt_gpu_reloc(&eb, scratch);
> > -
> > - intel_context_unpin(eb.context);
> > - }
> > - if (err == -EDEADLK) {
> > - err = i915_gem_ww_ctx_backoff(&eb.ww);
> > - if (!err)
> > - goto retry;
> > - }
> > - i915_gem_ww_ctx_fini(&eb.ww);
> > -
> > - if (eb.reloc_pool)
> > - intel_gt_buffer_pool_put(eb.reloc_pool);
> > - if (eb.reloc_context)
> > - intel_context_put(eb.reloc_context);
> > -
> > - intel_context_put(eb.context);
> > -err_pm:
> > - intel_engine_pm_put(eb.engine);
> > - if (err)
> > - break;
> > - }
> > -
> > - if (igt_flush_test(eb.i915))
> > - err = -EIO;
> > -
> > - intel_gt_pm_put(&eb.i915->gt);
> > -err_scratch:
> > - i915_gem_object_put(scratch);
> > - return err;
> > -}
> > -
> > -int i915_gem_execbuffer_live_selftests(struct drm_i915_private *i915)
> > -{
> > - static const struct i915_subtest tests[] = {
> > - SUBTEST(igt_gpu_reloc),
> > - };
> > -
> > - if (intel_gt_is_wedged(&i915->gt))
> > - return 0;
> > -
> > - return i915_live_subtests(tests, i915);
> > -}
> > --
> > 2.32.0
> >
--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
