Re: [Intel-gfx] [PATCH v6 10/11] drm/i915: Use to_gt() helper for GGTT accesses

Matt Roper
2021-12-10T00:19:10Z

On Thu, Dec 09, 2021 at 03:25:11PM +0200, Andi Shyti wrote:
> From: Michał Winiarski <michal.winiarski@intel.com>
>
> GGTT is currently available both through i915->ggtt and gt->ggtt, and we
> eventually want to get rid of the i915->ggtt one.
> Use to_gt() for all i915->ggtt accesses to help with the future
> refactoring.

I think we can also convert the two references in i915_drm_suspend() and
i915_drm_resume(), right? With those converted, I think the only
remaining use of i915->ggtt will be the call to intel_gt_init_hw_early()
during startup that assigns the gt->ggtt pointer. Maybe we should just
make that function assign a drmm_kzalloc() and drop the i915->ggtt
completely?

Matt

>
> Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_fbc.c | 2 +-
> .../gpu/drm/i915/display/intel_plane_initial.c | 2 +-
> drivers/gpu/drm/i915/gem/i915_gem_context.h | 2 +-
> drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 2 +-
> drivers/gpu/drm/i915/gem/i915_gem_mman.c | 16 ++++++++--------
> drivers/gpu/drm/i915/gem/i915_gem_pm.c | 2 +-
> drivers/gpu/drm/i915/gem/i915_gem_shrinker.c | 6 +++---
> drivers/gpu/drm/i915/gem/i915_gem_stolen.c | 2 +-
> .../drm/i915/gem/selftests/i915_gem_client_blt.c | 2 +-
> .../drm/i915/gem/selftests/i915_gem_context.c | 2 +-
> .../gpu/drm/i915/gem/selftests/i915_gem_mman.c | 16 ++++++++--------
> .../gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
> drivers/gpu/drm/i915/gt/intel_ggtt.c | 14 +++++++-------
> drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c | 6 +++---
> drivers/gpu/drm/i915/gt/intel_region_lmem.c | 4 ++--
> drivers/gpu/drm/i915/gt/selftest_reset.c | 2 +-
> drivers/gpu/drm/i915/i915_driver.c | 4 ++--
> drivers/gpu/drm/i915/i915_drv.h | 2 +-
> drivers/gpu/drm/i915/i915_gem.c | 16 ++++++++--------
> drivers/gpu/drm/i915/i915_gem_gtt.c | 6 +++---
> drivers/gpu/drm/i915/i915_getparam.c | 2 +-
> drivers/gpu/drm/i915/i915_perf.c | 4 ++--
> drivers/gpu/drm/i915/selftests/i915_gem.c | 8 ++++----
> drivers/gpu/drm/i915/selftests/i915_gem_gtt.c | 6 +++---
> drivers/gpu/drm/i915/selftests/i915_request.c | 2 +-
> drivers/gpu/drm/i915/selftests/i915_vma.c | 2 +-
> drivers/gpu/drm/i915/selftests/mock_gem_device.c | 4 ++--
> drivers/gpu/drm/i915/selftests/mock_gtt.c | 2 +-
> 28 files changed, 70 insertions(+), 70 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
> index 8be01b93015f..98319c0322d7 100644
> --- a/drivers/gpu/drm/i915/display/intel_fbc.c
> +++ b/drivers/gpu/drm/i915/display/intel_fbc.c
> @@ -595,7 +595,7 @@ static void ivb_fbc_activate(struct intel_fbc *fbc)
> else if (DISPLAY_VER(i915) == 9)
> skl_fbc_program_cfb_stride(fbc);
>
> - if (i915->ggtt.num_fences)
> + if (to_gt(i915)->ggtt->num_fences)
> snb_fbc_program_fence(fbc);
>
> intel_de_write(i915, ILK_DPFC_CONTROL,
> diff --git a/drivers/gpu/drm/i915/display/intel_plane_initial.c b/drivers/gpu/drm/i915/display/intel_plane_initial.c
> index 01ce1d72297f..e4186a0b8edb 100644
> --- a/drivers/gpu/drm/i915/display/intel_plane_initial.c
> +++ b/drivers/gpu/drm/i915/display/intel_plane_initial.c
> @@ -94,7 +94,7 @@ initial_plane_vma(struct drm_i915_private *i915,
> goto err_obj;
> }
>
> - vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
> + vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL);
> if (IS_ERR(vma))
> goto err_obj;
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.h b/drivers/gpu/drm/i915/gem/i915_gem_context.h
> index babfecb17ad1..e5b0f66ea1fe 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_context.h
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_context.h
> @@ -174,7 +174,7 @@ i915_gem_context_get_eb_vm(struct i915_gem_context *ctx)
>
> vm = ctx->vm;
> if (!vm)
> - vm = &ctx->i915->ggtt.vm;
> + vm = &to_gt(ctx->i915)->ggtt->vm;
> vm = i915_vm_get(vm);
>
> return vm;
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index ec7c4a29a720..3078611d5bfe 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -1106,7 +1106,7 @@ static inline struct i915_ggtt *cache_to_ggtt(struct reloc_cache *cache)
> {
> struct drm_i915_private *i915 =
> container_of(cache, struct i915_execbuffer, reloc_cache)->i915;
> - return &i915->ggtt;
> + return to_gt(i915)->ggtt;
> }
>
> static void reloc_cache_reset(struct reloc_cache *cache, struct i915_execbuffer *eb)
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> index 1ca5c062974e..bd5890780810 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
> @@ -295,7 +295,7 @@ static vm_fault_t vm_fault_gtt(struct vm_fault *vmf)
> struct drm_device *dev = obj->base.dev;
> struct drm_i915_private *i915 = to_i915(dev);
> struct intel_runtime_pm *rpm = &i915->runtime_pm;
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> bool write = area->vm_flags & VM_WRITE;
> struct i915_gem_ww_ctx ww;
> intel_wakeref_t wakeref;
> @@ -388,16 +388,16 @@ static vm_fault_t vm_fault_gtt(struct vm_fault *vmf)
> assert_rpm_wakelock_held(rpm);
>
> /* Mark as being mmapped into userspace for later revocation */
> - mutex_lock(&i915->ggtt.vm.mutex);
> + mutex_lock(&to_gt(i915)->ggtt->vm.mutex);
> if (!i915_vma_set_userfault(vma) && !obj->userfault_count++)
> - list_add(&obj->userfault_link, &i915->ggtt.userfault_list);
> - mutex_unlock(&i915->ggtt.vm.mutex);
> + list_add(&obj->userfault_link, &to_gt(i915)->ggtt->userfault_list);
> + mutex_unlock(&to_gt(i915)->ggtt->vm.mutex);
>
> /* Track the mmo associated with the fenced vma */
> vma->mmo = mmo;
>
> if (CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND)
> - intel_wakeref_auto(&i915->ggtt.userfault_wakeref,
> + intel_wakeref_auto(&to_gt(i915)->ggtt->userfault_wakeref,
> msecs_to_jiffies_timeout(CONFIG_DRM_I915_USERFAULT_AUTOSUSPEND));
>
> if (write) {
> @@ -512,7 +512,7 @@ void i915_gem_object_release_mmap_gtt(struct drm_i915_gem_object *obj)
> * wakeref.
> */
> wakeref = intel_runtime_pm_get(&i915->runtime_pm);
> - mutex_lock(&i915->ggtt.vm.mutex);
> + mutex_lock(&to_gt(i915)->ggtt->vm.mutex);
>
> if (!obj->userfault_count)
> goto out;
> @@ -530,7 +530,7 @@ void i915_gem_object_release_mmap_gtt(struct drm_i915_gem_object *obj)
> wmb();
>
> out:
> - mutex_unlock(&i915->ggtt.vm.mutex);
> + mutex_unlock(&to_gt(i915)->ggtt->vm.mutex);
> intel_runtime_pm_put(&i915->runtime_pm, wakeref);
> }
>
> @@ -787,7 +787,7 @@ i915_gem_mmap_offset_ioctl(struct drm_device *dev, void *data,
>
> switch (args->flags) {
> case I915_MMAP_OFFSET_GTT:
> - if (!i915_ggtt_has_aperture(&i915->ggtt))
> + if (!i915_ggtt_has_aperture(to_gt(i915)->ggtt))
> return -ENODEV;
> type = I915_MMAP_TYPE_GTT;
> break;
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pm.c b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
> index ac56124760e1..6da68b38f00f 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_pm.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_pm.c
> @@ -23,7 +23,7 @@ void i915_gem_suspend(struct drm_i915_private *i915)
> {
> GEM_TRACE("%s\n", dev_name(i915->drm.dev));
>
> - intel_wakeref_auto(&i915->ggtt.userfault_wakeref, 0);
> + intel_wakeref_auto(&to_gt(i915)->ggtt->userfault_wakeref, 0);
> flush_workqueue(i915->wq);
>
> /*
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
> index 05a1ba2f2e7b..793fbf3da46b 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_shrinker.c
> @@ -403,9 +403,9 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
> I915_SHRINK_VMAPS);
>
> /* We also want to clear any cached iomaps as they wrap vmap */
> - mutex_lock(&i915->ggtt.vm.mutex);
> + mutex_lock(&to_gt(i915)->ggtt->vm.mutex);
> list_for_each_entry_safe(vma, next,
> - &i915->ggtt.vm.bound_list, vm_link) {
> + &to_gt(i915)->ggtt->vm.bound_list, vm_link) {
> unsigned long count = vma->node.size >> PAGE_SHIFT;
>
> if (!vma->iomap || i915_vma_is_active(vma))
> @@ -414,7 +414,7 @@ i915_gem_shrinker_vmap(struct notifier_block *nb, unsigned long event, void *ptr
> if (__i915_vma_unbind(vma) == 0)
> freed_pages += count;
> }
> - mutex_unlock(&i915->ggtt.vm.mutex);
> + mutex_unlock(&to_gt(i915)->ggtt->vm.mutex);
>
> *(unsigned long *)ptr += freed_pages;
> return NOTIFY_DONE;
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> index bce03d74a0b4..eb6bf6779d2c 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
> @@ -71,7 +71,7 @@ void i915_gem_stolen_remove_node(struct drm_i915_private *i915,
> static int i915_adjust_stolen(struct drm_i915_private *i915,
> struct resource *dsm)
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> struct intel_uncore *uncore = ggtt->vm.gt->uncore;
> struct resource *r;
>
> 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
> index 75947e9dada2..c08f766e6e15 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c
> @@ -543,7 +543,7 @@ static bool has_bit17_swizzle(int sw)
>
> static bool bad_swizzling(struct drm_i915_private *i915)
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>
> if (i915->quirks & QUIRK_PIN_SWIZZLED_PAGES)
> return true;
> diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
> index 45398adda9c8..250fe3ba6def 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c
> @@ -1374,7 +1374,7 @@ static int igt_ctx_readonly(void *arg)
> goto out_file;
> }
>
> - vm = ctx->vm ?: &i915->ggtt.alias->vm;
> + vm = ctx->vm ?: &to_gt(i915)->ggtt->alias->vm;
> if (!vm || !vm->has_read_only) {
> err = 0;
> goto out_file;
> diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> index 743e6ab2c40b..ebe41a8ea36c 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c
> @@ -307,7 +307,7 @@ static int igt_partial_tiling(void *arg)
> int tiling;
> int err;
>
> - if (!i915_ggtt_has_aperture(&i915->ggtt))
> + if (!i915_ggtt_has_aperture(to_gt(i915)->ggtt))
> return 0;
>
> /* We want to check the page mapping and fencing of a large object
> @@ -320,7 +320,7 @@ static int igt_partial_tiling(void *arg)
>
> obj = huge_gem_object(i915,
> nreal << PAGE_SHIFT,
> - (1 + next_prime_number(i915->ggtt.vm.total >> PAGE_SHIFT)) << PAGE_SHIFT);
> + (1 + next_prime_number(to_gt(i915)->ggtt->vm.total >> PAGE_SHIFT)) << PAGE_SHIFT);
> if (IS_ERR(obj))
> return PTR_ERR(obj);
>
> @@ -366,10 +366,10 @@ static int igt_partial_tiling(void *arg)
> tile.tiling = tiling;
> switch (tiling) {
> case I915_TILING_X:
> - tile.swizzle = i915->ggtt.bit_6_swizzle_x;
> + tile.swizzle = to_gt(i915)->ggtt->bit_6_swizzle_x;
> break;
> case I915_TILING_Y:
> - tile.swizzle = i915->ggtt.bit_6_swizzle_y;
> + tile.swizzle = to_gt(i915)->ggtt->bit_6_swizzle_y;
> break;
> }
>
> @@ -440,7 +440,7 @@ static int igt_smoke_tiling(void *arg)
> IGT_TIMEOUT(end);
> int err;
>
> - if (!i915_ggtt_has_aperture(&i915->ggtt))
> + if (!i915_ggtt_has_aperture(to_gt(i915)->ggtt))
> return 0;
>
> /*
> @@ -457,7 +457,7 @@ static int igt_smoke_tiling(void *arg)
>
> obj = huge_gem_object(i915,
> nreal << PAGE_SHIFT,
> - (1 + next_prime_number(i915->ggtt.vm.total >> PAGE_SHIFT)) << PAGE_SHIFT);
> + (1 + next_prime_number(to_gt(i915)->ggtt->vm.total >> PAGE_SHIFT)) << PAGE_SHIFT);
> if (IS_ERR(obj))
> return PTR_ERR(obj);
>
> @@ -486,10 +486,10 @@ static int igt_smoke_tiling(void *arg)
> break;
>
> case I915_TILING_X:
> - tile.swizzle = i915->ggtt.bit_6_swizzle_x;
> + tile.swizzle = to_gt(i915)->ggtt->bit_6_swizzle_x;
> break;
> case I915_TILING_Y:
> - tile.swizzle = i915->ggtt.bit_6_swizzle_y;
> + tile.swizzle = to_gt(i915)->ggtt->bit_6_swizzle_y;
> break;
> }
>
> diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
> index 740ee8086a27..fe0a890775e2 100644
> --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
> +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c
> @@ -43,7 +43,7 @@ static int igt_gem_huge(void *arg)
>
> obj = huge_gem_object(i915,
> nreal * PAGE_SIZE,
> - i915->ggtt.vm.total + PAGE_SIZE);
> + to_gt(i915)->ggtt->vm.total + PAGE_SIZE);
> if (IS_ERR(obj))
> return PTR_ERR(obj);
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt.c b/drivers/gpu/drm/i915/gt/intel_ggtt.c
> index f5c8fd3911b0..75e99160b31f 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ggtt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt.c
> @@ -89,7 +89,7 @@ int i915_ggtt_init_hw(struct drm_i915_private *i915)
> * beyond the end of the batch buffer, across the page boundary,
> * and beyond the end of the GTT if we do not provide a guard.
> */
> - ret = ggtt_init_hw(&i915->ggtt);
> + ret = ggtt_init_hw(to_gt(i915)->ggtt);
> if (ret)
> return ret;
>
> @@ -725,14 +725,14 @@ int i915_init_ggtt(struct drm_i915_private *i915)
> {
> int ret;
>
> - ret = init_ggtt(&i915->ggtt);
> + ret = init_ggtt(to_gt(i915)->ggtt);
> if (ret)
> return ret;
>
> if (INTEL_PPGTT(i915) == INTEL_PPGTT_ALIASING) {
> - ret = init_aliasing_ppgtt(&i915->ggtt);
> + ret = init_aliasing_ppgtt(to_gt(i915)->ggtt);
> if (ret)
> - cleanup_init_ggtt(&i915->ggtt);
> + cleanup_init_ggtt(to_gt(i915)->ggtt);
> }
>
> return 0;
> @@ -775,7 +775,7 @@ static void ggtt_cleanup_hw(struct i915_ggtt *ggtt)
> */
> void i915_ggtt_driver_release(struct drm_i915_private *i915)
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>
> fini_aliasing_ppgtt(ggtt);
>
> @@ -790,7 +790,7 @@ void i915_ggtt_driver_release(struct drm_i915_private *i915)
> */
> void i915_ggtt_driver_late_release(struct drm_i915_private *i915)
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>
> GEM_WARN_ON(kref_read(&ggtt->vm.resv_ref) != 1);
> dma_resv_fini(&ggtt->vm._resv);
> @@ -1229,7 +1229,7 @@ int i915_ggtt_probe_hw(struct drm_i915_private *i915)
> {
> int ret;
>
> - ret = ggtt_probe_hw(&i915->ggtt, to_gt(i915));
> + ret = ggtt_probe_hw(to_gt(i915)->ggtt, to_gt(i915));
> if (ret)
> return ret;
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> index f8948de72036..beabf3bc9b75 100644
> --- a/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> +++ b/drivers/gpu/drm/i915/gt/intel_ggtt_fencing.c
> @@ -728,8 +728,8 @@ static void detect_bit_6_swizzle(struct i915_ggtt *ggtt)
> swizzle_y = I915_BIT_6_SWIZZLE_NONE;
> }
>
> - i915->ggtt.bit_6_swizzle_x = swizzle_x;
> - i915->ggtt.bit_6_swizzle_y = swizzle_y;
> + to_gt(i915)->ggtt->bit_6_swizzle_x = swizzle_x;
> + to_gt(i915)->ggtt->bit_6_swizzle_y = swizzle_y;
> }
>
> /*
> @@ -896,7 +896,7 @@ void intel_gt_init_swizzling(struct intel_gt *gt)
> struct intel_uncore *uncore = gt->uncore;
>
> if (GRAPHICS_VER(i915) < 5 ||
> - i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
> + to_gt(i915)->ggtt->bit_6_swizzle_x == I915_BIT_6_SWIZZLE_NONE)
> return;
>
> intel_uncore_rmw(uncore, DISP_ARB_CTL, 0, DISP_TILE_SURFACE_SWIZZLING);
> diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
> index 9ea49e0a27c0..b255cf4c26e6 100644
> --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
> +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
> @@ -15,7 +15,7 @@
> static int init_fake_lmem_bar(struct intel_memory_region *mem)
> {
> struct drm_i915_private *i915 = mem->i915;
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> unsigned long n;
> int ret;
>
> @@ -131,7 +131,7 @@ intel_gt_setup_fake_lmem(struct intel_gt *gt)
> if (!i915->params.fake_lmem_start)
> return ERR_PTR(-ENODEV);
>
> - GEM_BUG_ON(i915_ggtt_has_aperture(&i915->ggtt));
> + GEM_BUG_ON(i915_ggtt_has_aperture(to_gt(i915)->ggtt));
>
> /* Your mappable aperture belongs to me now! */
> mappable_end = pci_resource_len(pdev, 2);
> diff --git a/drivers/gpu/drm/i915/gt/selftest_reset.c b/drivers/gpu/drm/i915/gt/selftest_reset.c
> index 8a873f6bda7f..37c38bdd5f47 100644
> --- a/drivers/gpu/drm/i915/gt/selftest_reset.c
> +++ b/drivers/gpu/drm/i915/gt/selftest_reset.c
> @@ -19,7 +19,7 @@ __igt_reset_stolen(struct intel_gt *gt,
> intel_engine_mask_t mask,
> const char *msg)
> {
> - struct i915_ggtt *ggtt = &gt->i915->ggtt;
> + struct i915_ggtt *ggtt = gt->ggtt;
> const struct resource *dsm = &gt->i915->dsm;
> resource_size_t num_pages, page;
> struct intel_engine_cs *engine;
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 95174938b160..60f8cbf24de7 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -571,6 +571,8 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
>
> i915_perf_init(dev_priv);
>
> + intel_gt_init_hw_early(to_gt(dev_priv), &dev_priv->ggtt);
> +
> ret = i915_ggtt_probe_hw(dev_priv);
> if (ret)
> goto err_perf;
> @@ -587,8 +589,6 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
> if (ret)
> goto err_ggtt;
>
> - intel_gt_init_hw_early(to_gt(dev_priv), &dev_priv->ggtt);
> -
> ret = intel_gt_probe_lmem(to_gt(dev_priv));
> if (ret)
> goto err_mem_regions;
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index b0d929012ff3..96e3553838ef 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1757,7 +1757,7 @@ static inline bool i915_gem_object_needs_bit17_swizzle(struct drm_i915_gem_objec
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
>
> - return i915->ggtt.bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
> + return to_gt(i915)->ggtt->bit_6_swizzle_x == I915_BIT_6_SWIZZLE_9_10_17 &&
> i915_gem_object_is_tiled(obj);
> }
>
> diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
> index 8ba2119092f2..d94f901ea61f 100644
> --- a/drivers/gpu/drm/i915/i915_gem.c
> +++ b/drivers/gpu/drm/i915/i915_gem.c
> @@ -289,7 +289,7 @@ static struct i915_vma *i915_gem_gtt_prepare(struct drm_i915_gem_object *obj,
> bool write)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> struct i915_vma *vma;
> struct i915_gem_ww_ctx ww;
> int ret;
> @@ -350,7 +350,7 @@ static void i915_gem_gtt_cleanup(struct drm_i915_gem_object *obj,
> struct i915_vma *vma)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>
> i915_gem_object_unpin_pages(obj);
> if (drm_mm_node_allocated(node)) {
> @@ -366,7 +366,7 @@ i915_gem_gtt_pread(struct drm_i915_gem_object *obj,
> const struct drm_i915_gem_pread *args)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> intel_wakeref_t wakeref;
> struct drm_mm_node node;
> void __user *user_data;
> @@ -522,7 +522,7 @@ i915_gem_gtt_pwrite_fast(struct drm_i915_gem_object *obj,
> const struct drm_i915_gem_pwrite *args)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> struct intel_runtime_pm *rpm = &i915->runtime_pm;
> intel_wakeref_t wakeref;
> struct drm_mm_node node;
> @@ -823,7 +823,7 @@ void i915_gem_runtime_suspend(struct drm_i915_private *i915)
> */
>
> list_for_each_entry_safe(obj, on,
> - &i915->ggtt.userfault_list, userfault_link)
> + &to_gt(i915)->ggtt->userfault_list, userfault_link)
> __i915_gem_object_release_mmap_gtt(obj);
>
> /*
> @@ -831,8 +831,8 @@ void i915_gem_runtime_suspend(struct drm_i915_private *i915)
> * in use by hardware (i.e. they are pinned), we should not be powering
> * down! All other fences will be reacquired by the user upon waking.
> */
> - for (i = 0; i < i915->ggtt.num_fences; i++) {
> - struct i915_fence_reg *reg = &i915->ggtt.fence_regs[i];
> + for (i = 0; i < to_gt(i915)->ggtt->num_fences; i++) {
> + struct i915_fence_reg *reg = &to_gt(i915)->ggtt->fence_regs[i];
>
> /*
> * Ideally we want to assert that the fence register is not
> @@ -873,7 +873,7 @@ i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
> u64 size, u64 alignment, u64 flags)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> struct i915_vma *vma;
> int ret;
>
> diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
> index cd5f2348a187..2f2ba7a2955d 100644
> --- a/drivers/gpu/drm/i915/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
> @@ -56,7 +56,7 @@ void i915_gem_gtt_finish_pages(struct drm_i915_gem_object *obj,
> struct sg_table *pages)
> {
> struct drm_i915_private *i915 = to_i915(obj->base.dev);
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
>
> /* XXX This does not prevent more requests being submitted! */
> if (unlikely(ggtt->do_idle_maps))
> @@ -103,7 +103,7 @@ int i915_gem_gtt_reserve(struct i915_address_space *vm,
> GEM_BUG_ON(!IS_ALIGNED(size, I915_GTT_PAGE_SIZE));
> GEM_BUG_ON(!IS_ALIGNED(offset, I915_GTT_MIN_ALIGNMENT));
> GEM_BUG_ON(range_overflows(offset, size, vm->total));
> - GEM_BUG_ON(vm == &vm->i915->ggtt.alias->vm);
> + GEM_BUG_ON(vm == &to_gt(vm->i915)->ggtt->alias->vm);
> GEM_BUG_ON(drm_mm_node_allocated(node));
>
> node->size = size;
> @@ -201,7 +201,7 @@ int i915_gem_gtt_insert(struct i915_address_space *vm,
> GEM_BUG_ON(start >= end);
> GEM_BUG_ON(start > 0 && !IS_ALIGNED(start, I915_GTT_PAGE_SIZE));
> GEM_BUG_ON(end < U64_MAX && !IS_ALIGNED(end, I915_GTT_PAGE_SIZE));
> - GEM_BUG_ON(vm == &vm->i915->ggtt.alias->vm);
> + GEM_BUG_ON(vm == &to_gt(vm->i915)->ggtt->alias->vm);
> GEM_BUG_ON(drm_mm_node_allocated(node));
>
> if (unlikely(range_overflows(start, size, end)))
> diff --git a/drivers/gpu/drm/i915/i915_getparam.c b/drivers/gpu/drm/i915/i915_getparam.c
> index 7f80ad247bc8..5b8a2157d797 100644
> --- a/drivers/gpu/drm/i915/i915_getparam.c
> +++ b/drivers/gpu/drm/i915/i915_getparam.c
> @@ -31,7 +31,7 @@ int i915_getparam_ioctl(struct drm_device *dev, void *data,
> value = pdev->revision;
> break;
> case I915_PARAM_NUM_FENCES_AVAIL:
> - value = i915->ggtt.num_fences;
> + value = to_gt(i915)->ggtt->num_fences;
> break;
> case I915_PARAM_HAS_OVERLAY:
> value = !!i915->overlay;
> diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
> index 170bba913c30..128315aec517 100644
> --- a/drivers/gpu/drm/i915/i915_perf.c
> +++ b/drivers/gpu/drm/i915/i915_perf.c
> @@ -1630,7 +1630,7 @@ static int alloc_noa_wait(struct i915_perf_stream *stream)
> struct drm_i915_gem_object *bo;
> struct i915_vma *vma;
> const u64 delay_ticks = 0xffffffffffffffff -
> - intel_gt_ns_to_clock_interval(stream->perf->i915->ggtt.vm.gt,
> + intel_gt_ns_to_clock_interval(to_gt(stream->perf->i915)->ggtt->vm.gt,
> atomic64_read(&stream->perf->noa_programming_delay));
> const u32 base = stream->engine->mmio_base;
> #define CS_GPR(x) GEN8_RING_CS_GPR(base, x)
> @@ -3542,7 +3542,7 @@ i915_perf_open_ioctl_locked(struct i915_perf *perf,
>
> static u64 oa_exponent_to_ns(struct i915_perf *perf, int exponent)
> {
> - return intel_gt_clock_interval_to_ns(perf->i915->ggtt.vm.gt,
> + return intel_gt_clock_interval_to_ns(to_gt(perf->i915)->ggtt->vm.gt,
> 2ULL << exponent);
> }
>
> diff --git a/drivers/gpu/drm/i915/selftests/i915_gem.c b/drivers/gpu/drm/i915/selftests/i915_gem.c
> index b5576888cd78..1628b81d0a35 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_gem.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_gem.c
> @@ -41,7 +41,7 @@ static int switch_to_context(struct i915_gem_context *ctx)
>
> static void trash_stolen(struct drm_i915_private *i915)
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> const u64 slot = ggtt->error_capture.start;
> const resource_size_t size = resource_size(&i915->dsm);
> unsigned long page;
> @@ -99,7 +99,7 @@ static void igt_pm_suspend(struct drm_i915_private *i915)
> intel_wakeref_t wakeref;
>
> with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
> - i915_ggtt_suspend(&i915->ggtt);
> + i915_ggtt_suspend(to_gt(i915)->ggtt);
> i915_gem_suspend_late(i915);
> }
> }
> @@ -109,7 +109,7 @@ static void igt_pm_hibernate(struct drm_i915_private *i915)
> intel_wakeref_t wakeref;
>
> with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
> - i915_ggtt_suspend(&i915->ggtt);
> + i915_ggtt_suspend(to_gt(i915)->ggtt);
>
> i915_gem_freeze(i915);
> i915_gem_freeze_late(i915);
> @@ -125,7 +125,7 @@ static void igt_pm_resume(struct drm_i915_private *i915)
> * that runtime-pm just works.
> */
> with_intel_runtime_pm(&i915->runtime_pm, wakeref) {
> - i915_ggtt_resume(&i915->ggtt);
> + i915_ggtt_resume(to_gt(i915)->ggtt);
> i915_gem_resume(i915);
> }
> }
> diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
> index 48123c3e1ff0..9afe7cf9d068 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_gem_gtt.c
> @@ -1122,7 +1122,7 @@ static int exercise_ggtt(struct drm_i915_private *i915,
> u64 hole_start, u64 hole_end,
> unsigned long end_time))
> {
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> u64 hole_start, hole_end, last = 0;
> struct drm_mm_node *node;
> IGT_TIMEOUT(end_time);
> @@ -1182,7 +1182,7 @@ static int igt_ggtt_page(void *arg)
> const unsigned int count = PAGE_SIZE/sizeof(u32);
> I915_RND_STATE(prng);
> struct drm_i915_private *i915 = arg;
> - struct i915_ggtt *ggtt = &i915->ggtt;
> + struct i915_ggtt *ggtt = to_gt(i915)->ggtt;
> struct drm_i915_gem_object *obj;
> intel_wakeref_t wakeref;
> struct drm_mm_node tmp;
> @@ -2110,7 +2110,7 @@ int i915_gem_gtt_live_selftests(struct drm_i915_private *i915)
> SUBTEST(igt_cs_tlb),
> };
>
> - GEM_BUG_ON(offset_in_page(i915->ggtt.vm.total));
> + GEM_BUG_ON(offset_in_page(to_gt(i915)->ggtt->vm.total));
>
> return i915_subtests(tests, i915);
> }
> diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
> index 92a859b34190..7f66f6d299b2 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_request.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_request.c
> @@ -843,7 +843,7 @@ static struct i915_vma *empty_batch(struct drm_i915_private *i915)
>
> intel_gt_chipset_flush(to_gt(i915));
>
> - vma = i915_vma_instance(obj, &i915->ggtt.vm, NULL);
> + vma = i915_vma_instance(obj, &to_gt(i915)->ggtt->vm, NULL);
> if (IS_ERR(vma)) {
> err = PTR_ERR(vma);
> goto err;
> diff --git a/drivers/gpu/drm/i915/selftests/i915_vma.c b/drivers/gpu/drm/i915/selftests/i915_vma.c
> index 1f10fe36619b..6ac15d3bc5bc 100644
> --- a/drivers/gpu/drm/i915/selftests/i915_vma.c
> +++ b/drivers/gpu/drm/i915/selftests/i915_vma.c
> @@ -967,7 +967,7 @@ static int igt_vma_remapped_gtt(void *arg)
> intel_wakeref_t wakeref;
> int err = 0;
>
> - if (!i915_ggtt_has_aperture(&i915->ggtt))
> + if (!i915_ggtt_has_aperture(to_gt(i915)->ggtt))
> return 0;
>
> obj = i915_gem_object_create_internal(i915, 10 * 10 * PAGE_SIZE);
> diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> index 8aa7b1d33865..2f12f8748262 100644
> --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> @@ -69,7 +69,7 @@ static void mock_device_release(struct drm_device *dev)
> i915_gem_drain_workqueue(i915);
> i915_gem_drain_freed_objects(i915);
>
> - mock_fini_ggtt(&i915->ggtt);
> + mock_fini_ggtt(to_gt(i915)->ggtt);
> destroy_workqueue(i915->wq);
>
> intel_region_ttm_device_fini(i915);
> @@ -195,7 +195,7 @@ struct drm_i915_private *mock_gem_device(void)
> mock_init_contexts(i915);
>
> mock_init_ggtt(i915, &i915->ggtt);
> - to_gt(i915)->vm = i915_vm_get(&i915->ggtt.vm);
> + to_gt(i915)->vm = i915_vm_get(&to_gt(i915)->ggtt->vm);
>
> mkwrite_device_info(i915)->platform_engine_mask = BIT(0);
> to_gt(i915)->info.engine_mask = BIT(0);
> diff --git a/drivers/gpu/drm/i915/selftests/mock_gtt.c b/drivers/gpu/drm/i915/selftests/mock_gtt.c
> index f0b87de0aca3..41fae5c9ea34 100644
> --- a/drivers/gpu/drm/i915/selftests/mock_gtt.c
> +++ b/drivers/gpu/drm/i915/selftests/mock_gtt.c
> @@ -130,7 +130,7 @@ void mock_init_ggtt(struct drm_i915_private *i915, struct i915_ggtt *ggtt)
> ggtt->vm.vma_ops.clear_pages = clear_pages;
>
> i915_address_space_init(&ggtt->vm, VM_CLASS_GGTT);
> - to_gt(i915)->ggtt = ggtt;
> + intel_gt_init_hw_early(to_gt(i915), ggtt);
> }
>
> void mock_fini_ggtt(struct i915_ggtt *ggtt)
> --
> 2.34.1
>

--
Matt Roper
Graphics Software Engineer
VTT-OSGC Platform Enablement
Intel Corporation
(916) 356-2795