[PATCH v2a 10/12] drm/i915/gem: Zap the client blt code
Thomas Hellström
thomas.hellstrom at linux.intel.com
Wed Jun 9 19:04:44 UTC 2021
It's not used anywhere.
Signed-off-by: Thomas Hellström <thomas.hellstrom at linux.intel.com>
---
drivers/gpu/drm/i915/Makefile | 1 -
.../gpu/drm/i915/gem/i915_gem_client_blt.c | 355 ---------
.../gpu/drm/i915/gem/i915_gem_client_blt.h | 21 -
.../i915/gem/selftests/i915_gem_client_blt.c | 704 ------------------
.../drm/i915/selftests/i915_live_selftests.h | 1 -
5 files changed, 1082 deletions(-)
delete mode 100644 drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
delete mode 100644 drivers/gpu/drm/i915/gem/i915_gem_client_blt.h
delete mode 100644 drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 95bd38e84625..fe0b551124c1 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -136,7 +136,6 @@ i915-y += $(gt-y)
gem-y += \
gem/i915_gem_busy.o \
gem/i915_gem_clflush.o \
- gem/i915_gem_client_blt.o \
gem/i915_gem_context.o \
gem/i915_gem_create.o \
gem/i915_gem_dmabuf.o \
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
deleted file mode 100644
index 44821d94544f..000000000000
--- a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.c
+++ /dev/null
@@ -1,355 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2019 Intel Corporation
- */
-
-#include "i915_drv.h"
-#include "gt/intel_context.h"
-#include "gt/intel_engine_pm.h"
-#include "i915_gem_client_blt.h"
-#include "i915_gem_object_blt.h"
-
-struct i915_sleeve {
- struct i915_vma *vma;
- struct drm_i915_gem_object *obj;
- struct sg_table *pages;
- struct i915_page_sizes page_sizes;
-};
-
-static int vma_set_pages(struct i915_vma *vma)
-{
- struct i915_sleeve *sleeve = vma->private;
-
- vma->pages = sleeve->pages;
- vma->page_sizes = sleeve->page_sizes;
-
- return 0;
-}
-
-static void vma_clear_pages(struct i915_vma *vma)
-{
- GEM_BUG_ON(!vma->pages);
- vma->pages = NULL;
-}
-
-static void vma_bind(struct i915_address_space *vm,
- struct i915_vm_pt_stash *stash,
- struct i915_vma *vma,
- enum i915_cache_level cache_level,
- u32 flags)
-{
- vm->vma_ops.bind_vma(vm, stash, vma, cache_level, flags);
-}
-
-static void vma_unbind(struct i915_address_space *vm, struct i915_vma *vma)
-{
- vm->vma_ops.unbind_vma(vm, vma);
-}
-
-static const struct i915_vma_ops proxy_vma_ops = {
- .set_pages = vma_set_pages,
- .clear_pages = vma_clear_pages,
- .bind_vma = vma_bind,
- .unbind_vma = vma_unbind,
-};
-
-static struct i915_sleeve *create_sleeve(struct i915_address_space *vm,
- struct drm_i915_gem_object *obj,
- struct sg_table *pages,
- struct i915_page_sizes *page_sizes)
-{
- struct i915_sleeve *sleeve;
- struct i915_vma *vma;
- int err;
-
- sleeve = kzalloc(sizeof(*sleeve), GFP_KERNEL);
- if (!sleeve)
- return ERR_PTR(-ENOMEM);
-
- vma = i915_vma_instance(obj, vm, NULL);
- if (IS_ERR(vma)) {
- err = PTR_ERR(vma);
- goto err_free;
- }
-
- vma->private = sleeve;
- vma->ops = &proxy_vma_ops;
-
- sleeve->vma = vma;
- sleeve->pages = pages;
- sleeve->page_sizes = *page_sizes;
-
- return sleeve;
-
-err_free:
- kfree(sleeve);
- return ERR_PTR(err);
-}
-
-static void destroy_sleeve(struct i915_sleeve *sleeve)
-{
- kfree(sleeve);
-}
-
-struct clear_pages_work {
- struct dma_fence dma;
- struct dma_fence_cb cb;
- struct i915_sw_fence wait;
- struct work_struct work;
- struct irq_work irq_work;
- struct i915_sleeve *sleeve;
- struct intel_context *ce;
- u32 value;
-};
-
-static const char *clear_pages_work_driver_name(struct dma_fence *fence)
-{
- return DRIVER_NAME;
-}
-
-static const char *clear_pages_work_timeline_name(struct dma_fence *fence)
-{
- return "clear";
-}
-
-static void clear_pages_work_release(struct dma_fence *fence)
-{
- struct clear_pages_work *w = container_of(fence, typeof(*w), dma);
-
- destroy_sleeve(w->sleeve);
-
- i915_sw_fence_fini(&w->wait);
-
- BUILD_BUG_ON(offsetof(typeof(*w), dma));
- dma_fence_free(&w->dma);
-}
-
-static const struct dma_fence_ops clear_pages_work_ops = {
- .get_driver_name = clear_pages_work_driver_name,
- .get_timeline_name = clear_pages_work_timeline_name,
- .release = clear_pages_work_release,
-};
-
-static void clear_pages_signal_irq_worker(struct irq_work *work)
-{
- struct clear_pages_work *w = container_of(work, typeof(*w), irq_work);
-
- dma_fence_signal(&w->dma);
- dma_fence_put(&w->dma);
-}
-
-static void clear_pages_dma_fence_cb(struct dma_fence *fence,
- struct dma_fence_cb *cb)
-{
- struct clear_pages_work *w = container_of(cb, typeof(*w), cb);
-
- if (fence->error)
- dma_fence_set_error(&w->dma, fence->error);
-
- /*
- * Push the signalling of the fence into yet another worker to avoid
- * the nightmare locking around the fence spinlock.
- */
- irq_work_queue(&w->irq_work);
-}
-
-static void clear_pages_worker(struct work_struct *work)
-{
- struct clear_pages_work *w = container_of(work, typeof(*w), work);
- struct drm_i915_gem_object *obj = w->sleeve->vma->obj;
- struct i915_vma *vma = w->sleeve->vma;
- struct i915_gem_ww_ctx ww;
- struct i915_request *rq;
- struct i915_vma *batch;
- int err = w->dma.error;
-
- if (unlikely(err))
- goto out_signal;
-
- if (obj->cache_dirty) {
- if (i915_gem_object_has_struct_page(obj))
- drm_clflush_sg(w->sleeve->pages);
- obj->cache_dirty = false;
- }
- obj->read_domains = I915_GEM_GPU_DOMAINS;
- obj->write_domain = 0;
-
- i915_gem_ww_ctx_init(&ww, false);
- intel_engine_pm_get(w->ce->engine);
-retry:
- err = intel_context_pin_ww(w->ce, &ww);
- if (err)
- goto out_signal;
-
- batch = intel_emit_vma_fill_blt(w->ce, vma, &ww, w->value);
- if (IS_ERR(batch)) {
- err = PTR_ERR(batch);
- goto out_ctx;
- }
-
- rq = i915_request_create(w->ce);
- if (IS_ERR(rq)) {
- err = PTR_ERR(rq);
- goto out_batch;
- }
-
- /* There's no way the fence has signalled */
- if (dma_fence_add_callback(&rq->fence, &w->cb,
- clear_pages_dma_fence_cb))
- GEM_BUG_ON(1);
-
- err = intel_emit_vma_mark_active(batch, rq);
- if (unlikely(err))
- goto out_request;
-
- /*
- * w->dma is already exported via (vma|obj)->resv we need only
- * keep track of the GPU activity within this vma/request, and
- * propagate the signal from the request to w->dma.
- */
- err = __i915_vma_move_to_active(vma, rq);
- if (err)
- goto out_request;
-
- if (rq->engine->emit_init_breadcrumb) {
- err = rq->engine->emit_init_breadcrumb(rq);
- if (unlikely(err))
- goto out_request;
- }
-
- err = rq->engine->emit_bb_start(rq,
- batch->node.start, batch->node.size,
- 0);
-out_request:
- if (unlikely(err)) {
- i915_request_set_error_once(rq, err);
- err = 0;
- }
-
- i915_request_add(rq);
-out_batch:
- intel_emit_vma_release(w->ce, batch);
-out_ctx:
- intel_context_unpin(w->ce);
-out_signal:
- if (err == -EDEADLK) {
- err = i915_gem_ww_ctx_backoff(&ww);
- if (!err)
- goto retry;
- }
- i915_gem_ww_ctx_fini(&ww);
-
- i915_vma_unpin(w->sleeve->vma);
- intel_engine_pm_put(w->ce->engine);
-
- if (unlikely(err)) {
- dma_fence_set_error(&w->dma, err);
- dma_fence_signal(&w->dma);
- dma_fence_put(&w->dma);
- }
-}
-
-static int pin_wait_clear_pages_work(struct clear_pages_work *w,
- struct intel_context *ce)
-{
- struct i915_vma *vma = w->sleeve->vma;
- struct i915_gem_ww_ctx ww;
- int err;
-
- i915_gem_ww_ctx_init(&ww, false);
-retry:
- err = i915_gem_object_lock(vma->obj, &ww);
- if (err)
- goto out;
-
- err = i915_vma_pin_ww(vma, &ww, 0, 0, PIN_USER);
- if (unlikely(err))
- goto out;
-
- err = i915_sw_fence_await_reservation(&w->wait,
- vma->obj->base.resv, NULL,
- true, 0, I915_FENCE_GFP);
- if (err)
- goto err_unpin_vma;
-
- dma_resv_add_excl_fence(vma->obj->base.resv, &w->dma);
-
-err_unpin_vma:
- if (err)
- i915_vma_unpin(vma);
-out:
- if (err == -EDEADLK) {
- err = i915_gem_ww_ctx_backoff(&ww);
- if (!err)
- goto retry;
- }
- i915_gem_ww_ctx_fini(&ww);
- return err;
-}
-
-static int __i915_sw_fence_call
-clear_pages_work_notify(struct i915_sw_fence *fence,
- enum i915_sw_fence_notify state)
-{
- struct clear_pages_work *w = container_of(fence, typeof(*w), wait);
-
- switch (state) {
- case FENCE_COMPLETE:
- schedule_work(&w->work);
- break;
-
- case FENCE_FREE:
- dma_fence_put(&w->dma);
- break;
- }
-
- return NOTIFY_DONE;
-}
-
-static DEFINE_SPINLOCK(fence_lock);
-
-/* XXX: better name please */
-int i915_gem_schedule_fill_pages_blt(struct drm_i915_gem_object *obj,
- struct intel_context *ce,
- struct sg_table *pages,
- struct i915_page_sizes *page_sizes,
- u32 value)
-{
- struct clear_pages_work *work;
- struct i915_sleeve *sleeve;
- int err;
-
- sleeve = create_sleeve(ce->vm, obj, pages, page_sizes);
- if (IS_ERR(sleeve))
- return PTR_ERR(sleeve);
-
- work = kmalloc(sizeof(*work), GFP_KERNEL);
- if (!work) {
- destroy_sleeve(sleeve);
- return -ENOMEM;
- }
-
- work->value = value;
- work->sleeve = sleeve;
- work->ce = ce;
-
- INIT_WORK(&work->work, clear_pages_worker);
-
- init_irq_work(&work->irq_work, clear_pages_signal_irq_worker);
-
- dma_fence_init(&work->dma, &clear_pages_work_ops, &fence_lock, 0, 0);
- i915_sw_fence_init(&work->wait, clear_pages_work_notify);
-
- err = pin_wait_clear_pages_work(work, ce);
- if (err < 0)
- dma_fence_set_error(&work->dma, err);
-
- dma_fence_get(&work->dma);
- i915_sw_fence_commit(&work->wait);
-
- return err;
-}
-
-#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
-#include "selftests/i915_gem_client_blt.c"
-#endif
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.h b/drivers/gpu/drm/i915/gem/i915_gem_client_blt.h
deleted file mode 100644
index 3dbd28c22ff5..000000000000
--- a/drivers/gpu/drm/i915/gem/i915_gem_client_blt.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/* SPDX-License-Identifier: MIT */
-/*
- * Copyright © 2019 Intel Corporation
- */
-#ifndef __I915_GEM_CLIENT_BLT_H__
-#define __I915_GEM_CLIENT_BLT_H__
-
-#include <linux/types.h>
-
-struct drm_i915_gem_object;
-struct i915_page_sizes;
-struct intel_context;
-struct sg_table;
-
-int i915_gem_schedule_fill_pages_blt(struct drm_i915_gem_object *obj,
- struct intel_context *ce,
- struct sg_table *pages,
- struct i915_page_sizes *page_sizes,
- u32 value);
-
-#endif
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
deleted file mode 100644
index 176e6b22f87f..000000000000
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
+++ /dev/null
@@ -1,704 +0,0 @@
-// SPDX-License-Identifier: MIT
-/*
- * Copyright © 2019 Intel Corporation
- */
-
-#include "i915_selftest.h"
-
-#include "gt/intel_engine_user.h"
-#include "gt/intel_gt.h"
-#include "gt/intel_gpu_commands.h"
-#include "gem/i915_gem_lmem.h"
-
-#include "selftests/igt_flush_test.h"
-#include "selftests/mock_drm.h"
-#include "selftests/i915_random.h"
-#include "huge_gem_object.h"
-#include "mock_context.h"
-
-static int __igt_client_fill(struct intel_engine_cs *engine)
-{
- struct intel_context *ce = engine->kernel_context;
- struct drm_i915_gem_object *obj;
- I915_RND_STATE(prng);
- IGT_TIMEOUT(end);
- u32 *vaddr;
- int err = 0;
-
- intel_engine_pm_get(engine);
- do {
- const u32 max_block_size = S16_MAX * PAGE_SIZE;
- u32 sz = min_t(u64, ce->vm->total >> 4, prandom_u32_state(&prng));
- u32 phys_sz = sz % (max_block_size + 1);
- u32 val = prandom_u32_state(&prng);
- u32 i;
-
- sz = round_up(sz, PAGE_SIZE);
- phys_sz = round_up(phys_sz, PAGE_SIZE);
-
- pr_debug("%s with phys_sz= %x, sz=%x, val=%x\n", __func__,
- phys_sz, sz, val);
-
- obj = huge_gem_object(engine->i915, phys_sz, sz);
- if (IS_ERR(obj)) {
- err = PTR_ERR(obj);
- goto err_flush;
- }
-
- vaddr = i915_gem_object_pin_map_unlocked(obj, I915_MAP_WB);
- if (IS_ERR(vaddr)) {
- err = PTR_ERR(vaddr);
- goto err_put;
- }
-
- /*
- * XXX: The goal is move this to get_pages, so try to dirty the
- * CPU cache first to check that we do the required clflush
- * before scheduling the blt for !llc platforms. This matches
- * some version of reality where at get_pages the pages
- * themselves may not yet be coherent with the GPU(swap-in). If
- * we are missing the flush then we should see the stale cache
- * values after we do the set_to_cpu_domain and pick it up as a
- * test failure.
- */
- memset32(vaddr, val ^ 0xdeadbeaf,
- huge_gem_object_phys_size(obj) / sizeof(u32));
-
- if (!(obj->cache_coherent & I915_BO_CACHE_COHERENT_FOR_WRITE))
- obj->cache_dirty = true;
-
- err = i915_gem_schedule_fill_pages_blt(obj, ce, obj->mm.pages,
- &obj->mm.page_sizes,
- val);
- if (err)
- goto err_unpin;
-
- i915_gem_object_lock(obj, NULL);
- err = i915_gem_object_set_to_cpu_domain(obj, false);
- i915_gem_object_unlock(obj);
- if (err)
- goto err_unpin;
-
- for (i = 0; i < huge_gem_object_phys_size(obj) / sizeof(u32); ++i) {
- if (vaddr[i] != val) {
- pr_err("vaddr[%u]=%x, expected=%x\n", i,
- vaddr[i], val);
- err = -EINVAL;
- goto err_unpin;
- }
- }
-
- i915_gem_object_unpin_map(obj);
- i915_gem_object_put(obj);
- } while (!time_after(jiffies, end));
-
- goto err_flush;
-
-err_unpin:
- i915_gem_object_unpin_map(obj);
-err_put:
- i915_gem_object_put(obj);
-err_flush:
- if (err == -ENOMEM)
- err = 0;
- intel_engine_pm_put(engine);
-
- return err;
-}
-
-static int igt_client_fill(void *arg)
-{
- int inst = 0;
-
- do {
- struct intel_engine_cs *engine;
- int err;
-
- engine = intel_engine_lookup_user(arg,
- I915_ENGINE_CLASS_COPY,
- inst++);
- if (!engine)
- return 0;
-
- err = __igt_client_fill(engine);
- if (err == -ENOMEM)
- err = 0;
- if (err)
- return err;
- } while (1);
-}
-
-#define WIDTH 512
-#define HEIGHT 32
-
-struct blit_buffer {
- struct i915_vma *vma;
- u32 start_val;
- u32 tiling;
-};
-
-struct tiled_blits {
- struct intel_context *ce;
- struct blit_buffer buffers[3];
- struct blit_buffer scratch;
- struct i915_vma *batch;
- u64 hole;
- u32 width;
- u32 height;
-};
-
-static int prepare_blit(const struct tiled_blits *t,
- struct blit_buffer *dst,
- struct blit_buffer *src,
- struct drm_i915_gem_object *batch)
-{
- const int ver = GRAPHICS_VER(to_i915(batch->base.dev));
- bool use_64b_reloc = ver >= 8;
- u32 src_pitch, dst_pitch;
- u32 cmd, *cs;
-
- cs = i915_gem_object_pin_map_unlocked(batch, I915_MAP_WC);
- if (IS_ERR(cs))
- return PTR_ERR(cs);
-
- *cs++ = MI_LOAD_REGISTER_IMM(1);
- *cs++ = i915_mmio_reg_offset(BCS_SWCTRL);
- cmd = (BCS_SRC_Y | BCS_DST_Y) << 16;
- if (src->tiling == I915_TILING_Y)
- cmd |= BCS_SRC_Y;
- if (dst->tiling == I915_TILING_Y)
- cmd |= BCS_DST_Y;
- *cs++ = cmd;
-
- cmd = MI_FLUSH_DW;
- if (ver >= 8)
- cmd++;
- *cs++ = cmd;
- *cs++ = 0;
- *cs++ = 0;
- *cs++ = 0;
-
- cmd = XY_SRC_COPY_BLT_CMD | BLT_WRITE_RGBA | (8 - 2);
- if (ver >= 8)
- cmd += 2;
-
- src_pitch = t->width * 4;
- if (src->tiling) {
- cmd |= XY_SRC_COPY_BLT_SRC_TILED;
- src_pitch /= 4;
- }
-
- dst_pitch = t->width * 4;
- if (dst->tiling) {
- cmd |= XY_SRC_COPY_BLT_DST_TILED;
- dst_pitch /= 4;
- }
-
- *cs++ = cmd;
- *cs++ = BLT_DEPTH_32 | BLT_ROP_SRC_COPY | dst_pitch;
- *cs++ = 0;
- *cs++ = t->height << 16 | t->width;
- *cs++ = lower_32_bits(dst->vma->node.start);
- if (use_64b_reloc)
- *cs++ = upper_32_bits(dst->vma->node.start);
- *cs++ = 0;
- *cs++ = src_pitch;
- *cs++ = lower_32_bits(src->vma->node.start);
- if (use_64b_reloc)
- *cs++ = upper_32_bits(src->vma->node.start);
-
- *cs++ = MI_BATCH_BUFFER_END;
-
- i915_gem_object_flush_map(batch);
- i915_gem_object_unpin_map(batch);
-
- return 0;
-}
-
-static void tiled_blits_destroy_buffers(struct tiled_blits *t)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(t->buffers); i++)
- i915_vma_put(t->buffers[i].vma);
-
- i915_vma_put(t->scratch.vma);
- i915_vma_put(t->batch);
-}
-
-static struct i915_vma *
-__create_vma(struct tiled_blits *t, size_t size, bool lmem)
-{
- struct drm_i915_private *i915 = t->ce->vm->i915;
- struct drm_i915_gem_object *obj;
- struct i915_vma *vma;
-
- if (lmem)
- obj = i915_gem_object_create_lmem(i915, size, 0);
- else
- obj = i915_gem_object_create_shmem(i915, size);
- if (IS_ERR(obj))
- return ERR_CAST(obj);
-
- vma = i915_vma_instance(obj, t->ce->vm, NULL);
- if (IS_ERR(vma))
- i915_gem_object_put(obj);
-
- return vma;
-}
-
-static struct i915_vma *create_vma(struct tiled_blits *t, bool lmem)
-{
- return __create_vma(t, PAGE_ALIGN(t->width * t->height * 4), lmem);
-}
-
-static int tiled_blits_create_buffers(struct tiled_blits *t,
- int width, int height,
- struct rnd_state *prng)
-{
- struct drm_i915_private *i915 = t->ce->engine->i915;
- int i;
-
- t->width = width;
- t->height = height;
-
- t->batch = __create_vma(t, PAGE_SIZE, false);
- if (IS_ERR(t->batch))
- return PTR_ERR(t->batch);
-
- t->scratch.vma = create_vma(t, false);
- if (IS_ERR(t->scratch.vma)) {
- i915_vma_put(t->batch);
- return PTR_ERR(t->scratch.vma);
- }
-
- for (i = 0; i < ARRAY_SIZE(t->buffers); i++) {
- struct i915_vma *vma;
-
- vma = create_vma(t, HAS_LMEM(i915) && i % 2);
- if (IS_ERR(vma)) {
- tiled_blits_destroy_buffers(t);
- return PTR_ERR(vma);
- }
-
- t->buffers[i].vma = vma;
- t->buffers[i].tiling =
- i915_prandom_u32_max_state(I915_TILING_Y + 1, prng);
- }
-
- return 0;
-}
-
-static void fill_scratch(struct tiled_blits *t, u32 *vaddr, u32 val)
-{
- int i;
-
- t->scratch.start_val = val;
- for (i = 0; i < t->width * t->height; i++)
- vaddr[i] = val++;
-
- i915_gem_object_flush_map(t->scratch.vma->obj);
-}
-
-static u64 swizzle_bit(unsigned int bit, u64 offset)
-{
- return (offset & BIT_ULL(bit)) >> (bit - 6);
-}
-
-static u64 tiled_offset(const struct intel_gt *gt,
- u64 v,
- unsigned int stride,
- unsigned int tiling)
-{
- unsigned int swizzle;
- u64 x, y;
-
- if (tiling == I915_TILING_NONE)
- return v;
-
- y = div64_u64_rem(v, stride, &x);
-
- if (tiling == I915_TILING_X) {
- v = div64_u64_rem(y, 8, &y) * stride * 8;
- v += y * 512;
- v += div64_u64_rem(x, 512, &x) << 12;
- v += x;
-
- swizzle = gt->ggtt->bit_6_swizzle_x;
- } else {
- const unsigned int ytile_span = 16;
- const unsigned int ytile_height = 512;
-
- v = div64_u64_rem(y, 32, &y) * stride * 32;
- v += y * ytile_span;
- v += div64_u64_rem(x, ytile_span, &x) * ytile_height;
- v += x;
-
- swizzle = gt->ggtt->bit_6_swizzle_y;
- }
-
- switch (swizzle) {
- case I915_BIT_6_SWIZZLE_9:
- v ^= swizzle_bit(9, v);
- break;
- case I915_BIT_6_SWIZZLE_9_10:
- v ^= swizzle_bit(9, v) ^ swizzle_bit(10, v);
- break;
- case I915_BIT_6_SWIZZLE_9_11:
- v ^= swizzle_bit(9, v) ^ swizzle_bit(11, v);
- break;
- case I915_BIT_6_SWIZZLE_9_10_11:
- v ^= swizzle_bit(9, v) ^ swizzle_bit(10, v) ^ swizzle_bit(11, v);
- break;
- }
-
- return v;
-}
-
-static const char *repr_tiling(int tiling)
-{
- switch (tiling) {
- case I915_TILING_NONE: return "linear";
- case I915_TILING_X: return "X";
- case I915_TILING_Y: return "Y";
- default: return "unknown";
- }
-}
-
-static int verify_buffer(const struct tiled_blits *t,
- struct blit_buffer *buf,
- struct rnd_state *prng)
-{
- const u32 *vaddr;
- int ret = 0;
- int x, y, p;
-
- x = i915_prandom_u32_max_state(t->width, prng);
- y = i915_prandom_u32_max_state(t->height, prng);
- p = y * t->width + x;
-
- vaddr = i915_gem_object_pin_map_unlocked(buf->vma->obj, I915_MAP_WC);
- if (IS_ERR(vaddr))
- return PTR_ERR(vaddr);
-
- if (vaddr[0] != buf->start_val) {
- ret = -EINVAL;
- } else {
- u64 v = tiled_offset(buf->vma->vm->gt,
- p * 4, t->width * 4,
- buf->tiling);
-
- if (vaddr[v / sizeof(*vaddr)] != buf->start_val + p)
- ret = -EINVAL;
- }
- if (ret) {
- pr_err("Invalid %s tiling detected at (%d, %d), start_val %x\n",
- repr_tiling(buf->tiling),
- x, y, buf->start_val);
- igt_hexdump(vaddr, 4096);
- }
-
- i915_gem_object_unpin_map(buf->vma->obj);
- return ret;
-}
-
-static int move_to_active(struct i915_vma *vma,
- struct i915_request *rq,
- unsigned int flags)
-{
- int err;
-
- i915_vma_lock(vma);
- err = i915_request_await_object(rq, vma->obj, false);
- if (err == 0)
- err = i915_vma_move_to_active(vma, rq, flags);
- i915_vma_unlock(vma);
-
- return err;
-}
-
-static int pin_buffer(struct i915_vma *vma, u64 addr)
-{
- int err;
-
- if (drm_mm_node_allocated(&vma->node) && vma->node.start != addr) {
- err = i915_vma_unbind(vma);
- if (err)
- return err;
- }
-
- err = i915_vma_pin(vma, 0, 0, PIN_USER | PIN_OFFSET_FIXED | addr);
- if (err)
- return err;
-
- return 0;
-}
-
-static int
-tiled_blit(struct tiled_blits *t,
- struct blit_buffer *dst, u64 dst_addr,
- struct blit_buffer *src, u64 src_addr)
-{
- struct i915_request *rq;
- int err;
-
- err = pin_buffer(src->vma, src_addr);
- if (err) {
- pr_err("Cannot pin src @ %llx\n", src_addr);
- return err;
- }
-
- err = pin_buffer(dst->vma, dst_addr);
- if (err) {
- pr_err("Cannot pin dst @ %llx\n", dst_addr);
- goto err_src;
- }
-
- err = i915_vma_pin(t->batch, 0, 0, PIN_USER | PIN_HIGH);
- if (err) {
- pr_err("cannot pin batch\n");
- goto err_dst;
- }
-
- err = prepare_blit(t, dst, src, t->batch->obj);
- if (err)
- goto err_bb;
-
- rq = intel_context_create_request(t->ce);
- if (IS_ERR(rq)) {
- err = PTR_ERR(rq);
- goto err_bb;
- }
-
- err = move_to_active(t->batch, rq, 0);
- if (!err)
- err = move_to_active(src->vma, rq, 0);
- if (!err)
- err = move_to_active(dst->vma, rq, 0);
- if (!err)
- err = rq->engine->emit_bb_start(rq,
- t->batch->node.start,
- t->batch->node.size,
- 0);
- i915_request_get(rq);
- i915_request_add(rq);
- if (i915_request_wait(rq, 0, HZ / 2) < 0)
- err = -ETIME;
- i915_request_put(rq);
-
- dst->start_val = src->start_val;
-err_bb:
- i915_vma_unpin(t->batch);
-err_dst:
- i915_vma_unpin(dst->vma);
-err_src:
- i915_vma_unpin(src->vma);
- return err;
-}
-
-static struct tiled_blits *
-tiled_blits_create(struct intel_engine_cs *engine, struct rnd_state *prng)
-{
- struct drm_mm_node hole;
- struct tiled_blits *t;
- u64 hole_size;
- int err;
-
- t = kzalloc(sizeof(*t), GFP_KERNEL);
- if (!t)
- return ERR_PTR(-ENOMEM);
-
- t->ce = intel_context_create(engine);
- if (IS_ERR(t->ce)) {
- err = PTR_ERR(t->ce);
- goto err_free;
- }
-
- hole_size = 2 * PAGE_ALIGN(WIDTH * HEIGHT * 4);
- hole_size *= 2; /* room to maneuver */
- hole_size += 2 * I915_GTT_MIN_ALIGNMENT;
-
- mutex_lock(&t->ce->vm->mutex);
- memset(&hole, 0, sizeof(hole));
- err = drm_mm_insert_node_in_range(&t->ce->vm->mm, &hole,
- hole_size, 0, I915_COLOR_UNEVICTABLE,
- 0, U64_MAX,
- DRM_MM_INSERT_BEST);
- if (!err)
- drm_mm_remove_node(&hole);
- mutex_unlock(&t->ce->vm->mutex);
- if (err) {
- err = -ENODEV;
- goto err_put;
- }
-
- t->hole = hole.start + I915_GTT_MIN_ALIGNMENT;
- pr_info("Using hole at %llx\n", t->hole);
-
- err = tiled_blits_create_buffers(t, WIDTH, HEIGHT, prng);
- if (err)
- goto err_put;
-
- return t;
-
-err_put:
- intel_context_put(t->ce);
-err_free:
- kfree(t);
- return ERR_PTR(err);
-}
-
-static void tiled_blits_destroy(struct tiled_blits *t)
-{
- tiled_blits_destroy_buffers(t);
-
- intel_context_put(t->ce);
- kfree(t);
-}
-
-static int tiled_blits_prepare(struct tiled_blits *t,
- struct rnd_state *prng)
-{
- u64 offset = PAGE_ALIGN(t->width * t->height * 4);
- u32 *map;
- int err;
- int i;
-
- map = i915_gem_object_pin_map_unlocked(t->scratch.vma->obj, I915_MAP_WC);
- if (IS_ERR(map))
- return PTR_ERR(map);
-
- /* Use scratch to fill objects */
- for (i = 0; i < ARRAY_SIZE(t->buffers); i++) {
- fill_scratch(t, map, prandom_u32_state(prng));
- GEM_BUG_ON(verify_buffer(t, &t->scratch, prng));
-
- err = tiled_blit(t,
- &t->buffers[i], t->hole + offset,
- &t->scratch, t->hole);
- if (err == 0)
- err = verify_buffer(t, &t->buffers[i], prng);
- if (err) {
- pr_err("Failed to create buffer %d\n", i);
- break;
- }
- }
-
- i915_gem_object_unpin_map(t->scratch.vma->obj);
- return err;
-}
-
-static int tiled_blits_bounce(struct tiled_blits *t, struct rnd_state *prng)
-{
- u64 offset =
- round_up(t->width * t->height * 4, 2 * I915_GTT_MIN_ALIGNMENT);
- int err;
-
- /* We want to check position invariant tiling across GTT eviction */
-
- err = tiled_blit(t,
- &t->buffers[1], t->hole + offset / 2,
- &t->buffers[0], t->hole + 2 * offset);
- if (err)
- return err;
-
- /* Reposition so that we overlap the old addresses, and slightly off */
- err = tiled_blit(t,
- &t->buffers[2], t->hole + I915_GTT_MIN_ALIGNMENT,
- &t->buffers[1], t->hole + 3 * offset / 2);
- if (err)
- return err;
-
- err = verify_buffer(t, &t->buffers[2], prng);
- if (err)
- return err;
-
- return 0;
-}
-
-static int __igt_client_tiled_blits(struct intel_engine_cs *engine,
- struct rnd_state *prng)
-{
- struct tiled_blits *t;
- int err;
-
- t = tiled_blits_create(engine, prng);
- if (IS_ERR(t))
- return PTR_ERR(t);
-
- err = tiled_blits_prepare(t, prng);
- if (err)
- goto out;
-
- err = tiled_blits_bounce(t, prng);
- if (err)
- goto out;
-
-out:
- tiled_blits_destroy(t);
- return err;
-}
-
-static bool has_bit17_swizzle(int sw)
-{
- return (sw == I915_BIT_6_SWIZZLE_9_10_17 ||
- sw == I915_BIT_6_SWIZZLE_9_17);
-}
-
-static bool bad_swizzling(struct drm_i915_private *i915)
-{
- struct i915_ggtt *ggtt = &i915->ggtt;
-
- if (i915->quirks & QUIRK_PIN_SWIZZLED_PAGES)
- return true;
-
- if (has_bit17_swizzle(ggtt->bit_6_swizzle_x) ||
- has_bit17_swizzle(ggtt->bit_6_swizzle_y))
- return true;
-
- return false;
-}
-
-static int igt_client_tiled_blits(void *arg)
-{
- struct drm_i915_private *i915 = arg;
- I915_RND_STATE(prng);
- int inst = 0;
-
- /* Test requires explicit BLT tiling controls */
- if (GRAPHICS_VER(i915) < 4)
- return 0;
-
- if (bad_swizzling(i915)) /* Requires sane (sub-page) swizzling */
- return 0;
-
- do {
- struct intel_engine_cs *engine;
- int err;
-
- engine = intel_engine_lookup_user(i915,
- I915_ENGINE_CLASS_COPY,
- inst++);
- if (!engine)
- return 0;
-
- err = __igt_client_tiled_blits(engine, &prng);
- if (err == -ENODEV)
- err = 0;
- if (err)
- return err;
- } while (1);
-}
-
-int i915_gem_client_blt_live_selftests(struct drm_i915_private *i915)
-{
- static const struct i915_subtest tests[] = {
- SUBTEST(igt_client_fill),
- SUBTEST(igt_client_tiled_blits),
- };
-
- if (intel_gt_is_wedged(&i915->gt))
- return 0;
-
- return i915_live_subtests(tests, i915);
-}
diff --git a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
index be5e0191eaea..6f5893ecd549 100644
--- a/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
+++ b/drivers/gpu/drm/i915/selftests/i915_live_selftests.h
@@ -40,7 +40,6 @@ selftest(hugepages, i915_gem_huge_page_live_selftests)
selftest(gem_contexts, i915_gem_context_live_selftests)
selftest(gem_execbuf, i915_gem_execbuffer_live_selftests)
selftest(blt, i915_gem_object_blt_live_selftests)
-selftest(client, i915_gem_client_blt_live_selftests)
selftest(reset, intel_reset_live_selftests)
selftest(memory_region, intel_memory_region_live_selftests)
selftest(hangcheck, intel_hangcheck_live_selftests)
--
2.31.1
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