Signed-off-by: Mikolaj Wasiak <mikolaj.wasiak@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/selftest_lrc.c | 215 -------------------------
1 file changed, 215 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 22e750108c5f..aa9b8af61ba6 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -105,32 +105,6 @@ static int emit_semaphore_signal(struct intel_context *ce, void *slot)
return 0;
}
-static int context_flush(struct intel_context *ce, long timeout)
-{
- struct i915_request *rq;
- struct dma_fence *fence;
- int err = 0;
-
- rq = intel_engine_create_kernel_request(ce->engine);
- if (IS_ERR(rq))
- return PTR_ERR(rq);
-
- fence = i915_active_fence_get(&ce->timeline->last_request);
- if (fence) {
- i915_request_await_dma_fence(rq, fence);
- dma_fence_put(fence);
- }
-
- rq = i915_request_get(rq);
- i915_request_add(rq);
- if (i915_request_wait(rq, 0, timeout) < 0)
- err = -ETIME;
- i915_request_put(rq);
-
- rmb(); /* We know the request is written, make sure all state is too! */
- return err;
-}
-
static int get_lri_mask(struct intel_engine_cs *engine, u32 lri)
{
if ((lri & MI_LRI_LRM_CS_MMIO) == 0)
@@ -733,194 +707,6 @@ static int live_lrc_gpr(void *arg)
return err;
}
-static struct i915_request *
-create_timestamp(struct intel_context *ce, void *slot, int idx)
-{
- const u32 offset =
- i915_ggtt_offset(ce->engine->status_page.vma) +
- offset_in_page(slot);
- struct i915_request *rq;
- u32 *cs;
- int err;
-
- rq = intel_context_create_request(ce);
- if (IS_ERR(rq))
- return rq;
-
- cs = intel_ring_begin(rq, 10);
- if (IS_ERR(cs)) {
- err = PTR_ERR(cs);
- goto err;
- }
-
- *cs++ = MI_ARB_ON_OFF | MI_ARB_ENABLE;
- *cs++ = MI_NOOP;
-
- *cs++ = MI_SEMAPHORE_WAIT |
- MI_SEMAPHORE_GLOBAL_GTT |
- MI_SEMAPHORE_POLL |
- MI_SEMAPHORE_SAD_NEQ_SDD;
- *cs++ = 0;
- *cs++ = offset;
- *cs++ = 0;
-
- *cs++ = MI_STORE_REGISTER_MEM_GEN8 | MI_USE_GGTT;
- *cs++ = i915_mmio_reg_offset(RING_CTX_TIMESTAMP(rq->engine->mmio_base));
- *cs++ = offset + idx * sizeof(u32);
- *cs++ = 0;
-
- intel_ring_advance(rq, cs);
-
- err = 0;
-err:
- i915_request_get(rq);
- i915_request_add(rq);
- if (err) {
- i915_request_put(rq);
- return ERR_PTR(err);
- }
-
- return rq;
-}
-
-struct lrc_timestamp {
- struct intel_engine_cs *engine;
- struct intel_context *ce[2];
- u32 poison;
-};
-
-static bool timestamp_advanced(u32 start, u32 end)
-{
- return (s32)(end - start) > 0;
-}
-
-static int __lrc_timestamp(const struct lrc_timestamp *arg, bool preempt)
-{
- u32 *slot = memset32(arg->engine->status_page.addr + 1000, 0, 4);
- struct i915_request *rq;
- u32 timestamp;
- int err = 0;
-
- arg->ce[0]->lrc_reg_state[CTX_TIMESTAMP] = arg->poison;
- rq = create_timestamp(arg->ce[0], slot, 1);
- if (IS_ERR(rq))
- return PTR_ERR(rq);
-
- err = wait_for_submit(rq->engine, rq, HZ / 2);
- if (err)
- goto err;
-
- if (preempt) {
- arg->ce[1]->lrc_reg_state[CTX_TIMESTAMP] = 0xdeadbeef;
- err = emit_semaphore_signal(arg->ce[1], slot);
- if (err)
- goto err;
- } else {
- slot[0] = 1;
- wmb();
- }
-
- /* And wait for switch to kernel (to save our context to memory) */
- err = context_flush(arg->ce[0], HZ / 2);
- if (err)
- goto err;
-
- if (!timestamp_advanced(arg->poison, slot[1])) {
- pr_err("%s(%s): invalid timestamp on restore, context:%x, request:%x\n",
- arg->engine->name, preempt ? "preempt" : "simple",
- arg->poison, slot[1]);
- err = -EINVAL;
- }
-
- timestamp = READ_ONCE(arg->ce[0]->lrc_reg_state[CTX_TIMESTAMP]);
- if (!timestamp_advanced(slot[1], timestamp)) {
- pr_err("%s(%s): invalid timestamp on save, request:%x, context:%x\n",
- arg->engine->name, preempt ? "preempt" : "simple",
- slot[1], timestamp);
- err = -EINVAL;
- }
-
-err:
- memset32(slot, -1, 4);
- i915_request_put(rq);
- return err;
-}
-
-static int live_lrc_timestamp(void *arg)
-{
- struct lrc_timestamp data = {};
- struct intel_gt *gt = arg;
- enum intel_engine_id id;
- const u32 poison[] = {
- 0,
- S32_MAX,
- (u32)S32_MAX + 1,
- U32_MAX,
- };
-
- /*
- * We want to verify that the timestamp is saved and restore across
- * context switches and is monotonic.
- *
- * So we do this with a little bit of LRC poisoning to check various
- * boundary conditions, and see what happens if we preempt the context
- * with a second request (carrying more poison into the timestamp).
- */
-
- for_each_engine(data.engine, gt, id) {
- int i, err = 0;
-
- st_engine_heartbeat_disable(data.engine);
-
- for (i = 0; i < ARRAY_SIZE(data.ce); i++) {
- struct intel_context *tmp;
-
- tmp = intel_context_create(data.engine);
- if (IS_ERR(tmp)) {
- err = PTR_ERR(tmp);
- goto err;
- }
-
- err = intel_context_pin(tmp);
- if (err) {
- intel_context_put(tmp);
- goto err;
- }
-
- data.ce[i] = tmp;
- }
-
- for (i = 0; i < ARRAY_SIZE(poison); i++) {
- data.poison = poison[i];
-
- err = __lrc_timestamp(&data, false);
- if (err)
- break;
-
- err = __lrc_timestamp(&data, true);
- if (err)
- break;
- }
-
-err:
- st_engine_heartbeat_enable(data.engine);
- for (i = 0; i < ARRAY_SIZE(data.ce); i++) {
- if (!data.ce[i])
- break;
-
- intel_context_unpin(data.ce[i]);
- intel_context_put(data.ce[i]);
- }
-
- if (igt_flush_test(gt->i915))
- err = -EIO;
- if (err)
- return err;
- }
-
- return 0;
-}
-
static struct i915_vma *
create_user_vma(struct i915_address_space *vm, unsigned long size)
{
@@ -1971,7 +1757,6 @@ int intel_lrc_live_selftests(struct drm_i915_private *i915)
SUBTEST(live_lrc_state),
SUBTEST(live_lrc_gpr),
SUBTEST(live_lrc_isolation),
- SUBTEST(live_lrc_timestamp),
SUBTEST(live_lrc_garbage),
SUBTEST(live_pphwsp_runtime),
SUBTEST(live_lrc_indirect_ctx_bb),
