[Intel-gfx] [PATCH 1/2] drm/i915: Prepare for multiple GTs
Stimson, Dale B
dale.b.stimson at intel.com
Tue Jan 11 22:50:57 UTC 2022
Hi Andi,
On 2022-01-11 14:15:51, Andi Shyti wrote:
>
> From: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
>
> On a multi-tile platform, each tile has its own registers + GGTT
> space, and BAR 0 is extended to cover all of them.
>
> Up to four gts are supported in i915->gt[], with slot zero
> shadowing the existing i915->gt0 to enable source compatibility
> with legacy driver paths. A for_each_gt macro is added to iterate
> over the GTs and will be used by upcoming patches that convert
> various parts of the driver to be multi-gt aware.
>
> Only the primary/root tile is initialized for now; the other
> tiles will be detected and plugged in by future patches once the
> necessary infrastructure is in place to handle them.
>
> Signed-off-by: Abdiel Janulgue <abdiel.janulgue at gmail.com>
> Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
> Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Andi Shyti <andi.shyti at linux.intel.com>
> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
> Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
> Cc: Matthew Auld <matthew.auld at intel.com>
> ---
> drivers/gpu/drm/i915/gt/intel_gt.c | 139 ++++++++++++++++--
> drivers/gpu/drm/i915/gt/intel_gt.h | 14 +-
> drivers/gpu/drm/i915/gt/intel_gt_pm.c | 9 +-
> drivers/gpu/drm/i915/gt/intel_gt_types.h | 7 +
> drivers/gpu/drm/i915/i915_driver.c | 29 ++--
> drivers/gpu/drm/i915/i915_drv.h | 6 +
> drivers/gpu/drm/i915/intel_memory_region.h | 3 +
> drivers/gpu/drm/i915/intel_uncore.c | 12 +-
> drivers/gpu/drm/i915/intel_uncore.h | 3 +-
> .../gpu/drm/i915/selftests/mock_gem_device.c | 5 +-
> 10 files changed, 185 insertions(+), 42 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
> index 298ff32c8d0c..5e062c9525f8 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.c
> @@ -26,7 +26,8 @@
> #include "shmem_utils.h"
> #include "pxp/intel_pxp.h"
>
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
> +static void
> +__intel_gt_init_early(struct intel_gt *gt)
> {
> spin_lock_init(>->irq_lock);
>
> @@ -46,19 +47,27 @@ void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
> intel_rps_init_early(>->rps);
> }
>
> +/* Preliminary initialization of Tile 0 */
> void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915)
> {
> gt->i915 = i915;
> gt->uncore = &i915->uncore;
> +
> + __intel_gt_init_early(gt);
> }
>
> -int intel_gt_probe_lmem(struct intel_gt *gt)
> +static int intel_gt_probe_lmem(struct intel_gt *gt)
> {
> struct drm_i915_private *i915 = gt->i915;
> + unsigned int instance = gt->info.id;
> struct intel_memory_region *mem;
> int id;
> int err;
>
> + id = INTEL_REGION_LMEM + instance;
> + if (drm_WARN_ON(&i915->drm, id >= INTEL_REGION_STOLEN_SMEM))
> + return -ENODEV;
> +
> mem = intel_gt_setup_lmem(gt);
> if (mem == ERR_PTR(-ENODEV))
> mem = intel_gt_setup_fake_lmem(gt);
> @@ -73,9 +82,8 @@ int intel_gt_probe_lmem(struct intel_gt *gt)
> return err;
> }
>
> - id = INTEL_REGION_LMEM;
> -
> mem->id = id;
> + mem->instance = instance;
>
> intel_memory_region_set_name(mem, "local%u", mem->instance);
>
> @@ -790,16 +798,21 @@ void intel_gt_driver_release(struct intel_gt *gt)
> intel_gt_fini_buffer_pool(gt);
> }
>
> -void intel_gt_driver_late_release(struct intel_gt *gt)
> +void intel_gt_driver_late_release(struct drm_i915_private *i915)
> {
> + struct intel_gt *gt;
> + unsigned int id;
> +
> /* We need to wait for inflight RCU frees to release their grip */
> rcu_barrier();
>
> - intel_uc_driver_late_release(>->uc);
> - intel_gt_fini_requests(gt);
> - intel_gt_fini_reset(gt);
> - intel_gt_fini_timelines(gt);
> - intel_engines_free(gt);
> + for_each_gt(gt, i915, id) {
> + intel_uc_driver_late_release(>->uc);
> + intel_gt_fini_requests(gt);
> + intel_gt_fini_reset(gt);
> + intel_gt_fini_timelines(gt);
> + intel_engines_free(gt);
> + }
> }
>
> /**
> @@ -908,6 +921,112 @@ u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg)
> return intel_uncore_read_fw(gt->uncore, reg);
> }
>
> +static int
> +intel_gt_tile_setup(struct intel_gt *gt, phys_addr_t phys_addr)
> +{
> + struct drm_i915_private *i915 = gt->i915;
> + unsigned int id = gt->info.id;
> + int ret;
> +
> + if (id) {
> + struct intel_uncore_mmio_debug *mmio_debug;
> + struct intel_uncore *uncore;
> +
> + /* For multi-tile platforms BAR0 must have at least 16MB per tile */
> + if (GEM_WARN_ON(pci_resource_len(to_pci_dev(i915->drm.dev), 0) <
> + (id + 1) * SZ_16M))
> + return -EINVAL;
> +
> + uncore = kzalloc(sizeof(*uncore), GFP_KERNEL);
> + if (!gt->uncore)
> + return -ENOMEM;
> +
> + mmio_debug = kzalloc(sizeof(*mmio_debug), GFP_KERNEL);
> + if (!mmio_debug) {
> + kfree(uncore);
> + return -ENOMEM;
> + }
> +
> + gt->uncore = uncore;
> + gt->uncore->debug = mmio_debug;
> +
> + __intel_gt_init_early(gt);
> + }
> +
> + intel_uncore_init_early(gt->uncore, gt);
> +
> + ret = intel_uncore_setup_mmio(gt->uncore, phys_addr);
> + if (ret)
> + return ret;
> +
> + gt->phys_addr = phys_addr;
> +
> + return 0;
> +}
> +
> +static void
> +intel_gt_tile_cleanup(struct intel_gt *gt)
> +{
> + intel_uncore_cleanup_mmio(gt->uncore);
> +
> + if (gt->info.id) {
> + kfree(gt->uncore);
> + kfree(gt);
> + }
> +}
> +
> +int intel_gt_probe_all(struct drm_i915_private *i915)
> +{
> + struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> + struct intel_gt *gt = &i915->gt0;
> + phys_addr_t phys_addr;
> + unsigned int mmio_bar;
> + int ret;
> +
> + mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> + phys_addr = pci_resource_start(pdev, mmio_bar);
> +
> + /*
> + * We always have at least one primary GT on any device
> + * and it has been already initialized early during probe
> + * in i915_driver_probe()
> + */
> + ret = intel_gt_tile_setup(gt, phys_addr);
> + if (ret)
> + return ret;
> +
> + i915->gt[0] = gt;
> +
> + /* TODO: add more tiles */
> + return 0;
> +}
> +
> +int intel_gt_tiles_init(struct drm_i915_private *i915)
> +{
> + struct intel_gt *gt;
> + unsigned int id;
> + int ret;
> +
> + for_each_gt(gt, i915, id) {
> + ret = intel_gt_probe_lmem(gt);
> + if (ret)
> + return ret;
> + }
> +
> + return 0;
> +}
> +
> +void intel_gt_release_all(struct drm_i915_private *i915)
> +{
> + struct intel_gt *gt;
> + unsigned int id;
> +
> + for_each_gt(gt, i915, id) {
> + intel_gt_tile_cleanup(gt);
> + i915->gt[id] = NULL;
> + }
> +}
> +
> void intel_gt_info_print(const struct intel_gt_info *info,
> struct drm_printer *p)
> {
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt.h b/drivers/gpu/drm/i915/gt/intel_gt.h
> index 94e1bac8c0cc..fcd10d88612a 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt.h
> @@ -35,9 +35,7 @@ static inline struct intel_gt *huc_to_gt(struct intel_huc *huc)
> }
>
> void intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
> -void __intel_gt_init_early(struct intel_gt *gt, struct drm_i915_private *i915);
> int intel_gt_assign_ggtt(struct intel_gt *gt);
> -int intel_gt_probe_lmem(struct intel_gt *gt);
> int intel_gt_init_mmio(struct intel_gt *gt);
> int __must_check intel_gt_init_hw(struct intel_gt *gt);
> int intel_gt_init(struct intel_gt *gt);
> @@ -47,7 +45,7 @@ void intel_gt_driver_unregister(struct intel_gt *gt);
> void intel_gt_driver_remove(struct intel_gt *gt);
> void intel_gt_driver_release(struct intel_gt *gt);
>
> -void intel_gt_driver_late_release(struct intel_gt *gt);
> +void intel_gt_driver_late_release(struct drm_i915_private *i915);
>
> int intel_gt_wait_for_idle(struct intel_gt *gt, long timeout);
>
> @@ -86,6 +84,16 @@ static inline bool intel_gt_needs_read_steering(struct intel_gt *gt,
>
> u32 intel_gt_read_register_fw(struct intel_gt *gt, i915_reg_t reg);
>
> +int intel_gt_probe_all(struct drm_i915_private *i915);
> +int intel_gt_tiles_init(struct drm_i915_private *i915);
> +void intel_gt_release_all(struct drm_i915_private *i915);
> +
> +#define for_each_gt(gt__, i915__, id__) \
> + for ((id__) = 0; \
> + (id__) < I915_MAX_GT; \
> + (id__)++) \
> + for_each_if(((gt__) = (i915__)->gt[(id__)]))
> +
> void intel_gt_info_print(const struct intel_gt_info *info,
> struct drm_printer *p);
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> index c0fa41e4c803..e66479d33bc3 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
> @@ -128,7 +128,14 @@ static const struct intel_wakeref_ops wf_ops = {
>
> void intel_gt_pm_init_early(struct intel_gt *gt)
> {
> - intel_wakeref_init(>->wakeref, gt->uncore->rpm, &wf_ops);
> + /*
> + * We access the runtime_pm structure via gt->i915 here rather than
> + * gt->uncore as we do elsewhere in the file because gt->uncore is not
> + * yet initialized for all tiles at this point in the driver startup.
> + * runtime_pm is per-device rather than per-tile, so this is still the
> + * correct structure.
> + */
> + intel_wakeref_init(>->wakeref, >->i915->runtime_pm, &wf_ops);
> seqcount_mutex_init(>->stats.lock, >->wakeref.mutex);
> }
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_types.h b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> index 14216cc471b1..7311e485faae 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_types.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_types.h
> @@ -180,7 +180,14 @@ struct intel_gt {
>
> const struct intel_mmio_range *steering_table[NUM_STEERING_TYPES];
>
> + /*
> + * Base of per-tile GTTMMADR where we can derive the MMIO and the GGTT.
> + */
> + phys_addr_t phys_addr;
> +
> struct intel_gt_info {
> + unsigned int id;
> +
> intel_engine_mask_t engine_mask;
>
> u32 l3bank_mask;
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 8bef67cb6c33..aa00965cd36c 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -316,9 +316,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
> intel_device_info_subplatform_init(dev_priv);
> intel_step_init(dev_priv);
>
> - intel_gt_init_early(to_gt(dev_priv), dev_priv);
> + /* All tiles share a single mmio_debug */
> intel_uncore_mmio_debug_init_early(&dev_priv->mmio_debug);
> - intel_uncore_init_early(&dev_priv->uncore, to_gt(dev_priv));
>
> spin_lock_init(&dev_priv->irq_lock);
> spin_lock_init(&dev_priv->gpu_error.lock);
> @@ -349,7 +348,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>
> intel_wopcm_init_early(&dev_priv->wopcm);
>
> - __intel_gt_init_early(to_gt(dev_priv), dev_priv);
> + intel_gt_init_early(to_gt(dev_priv), dev_priv);
>
> i915_gem_init_early(dev_priv);
>
> @@ -370,7 +369,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>
> err_gem:
> i915_gem_cleanup_early(dev_priv);
> - intel_gt_driver_late_release(to_gt(dev_priv));
> + intel_gt_driver_late_release(dev_priv);
> intel_region_ttm_device_fini(dev_priv);
> err_ttm:
> vlv_suspend_cleanup(dev_priv);
> @@ -389,7 +388,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
> intel_irq_fini(dev_priv);
> intel_power_domains_cleanup(dev_priv);
> i915_gem_cleanup_early(dev_priv);
> - intel_gt_driver_late_release(to_gt(dev_priv));
> + intel_gt_driver_late_release(dev_priv);
> intel_region_ttm_device_fini(dev_priv);
> vlv_suspend_cleanup(dev_priv);
> i915_workqueues_cleanup(dev_priv);
> @@ -420,13 +419,9 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
> if (ret < 0)
> return ret;
>
> - ret = intel_uncore_setup_mmio(&dev_priv->uncore);
> - if (ret < 0)
> - goto err_bridge;
> -
> ret = intel_uncore_init_mmio(&dev_priv->uncore);
> if (ret)
> - goto err_mmio;
> + return ret;
>
> /* Try to make sure MCHBAR is enabled before poking at it */
> intel_setup_mchbar(dev_priv);
> @@ -444,9 +439,6 @@ static int i915_driver_mmio_probe(struct drm_i915_private *dev_priv)
> err_uncore:
> intel_teardown_mchbar(dev_priv);
> intel_uncore_fini_mmio(&dev_priv->uncore);
> -err_mmio:
> - intel_uncore_cleanup_mmio(&dev_priv->uncore);
> -err_bridge:
> pci_dev_put(dev_priv->bridge_dev);
>
> return ret;
> @@ -460,7 +452,6 @@ static void i915_driver_mmio_release(struct drm_i915_private *dev_priv)
> {
> intel_teardown_mchbar(dev_priv);
> intel_uncore_fini_mmio(&dev_priv->uncore);
> - intel_uncore_cleanup_mmio(&dev_priv->uncore);
> pci_dev_put(dev_priv->bridge_dev);
> }
>
> @@ -593,7 +584,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
> if (ret)
> goto err_ggtt;
>
> - ret = intel_gt_probe_lmem(to_gt(dev_priv));
> + ret = intel_gt_tiles_init(dev_priv);
> if (ret)
> goto err_mem_regions;
>
> @@ -858,10 +849,14 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>
> intel_vgpu_detect(i915);
>
> - ret = i915_driver_mmio_probe(i915);
> + ret = intel_gt_probe_all(i915);
> if (ret < 0)
> goto out_runtime_pm_put;
>
> + ret = i915_driver_mmio_probe(i915);
> + if (ret < 0)
> + goto out_tiles_cleanup;
> +
> ret = i915_driver_hw_probe(i915);
> if (ret < 0)
> goto out_cleanup_mmio;
> @@ -918,6 +913,8 @@ int i915_driver_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
> i915_ggtt_driver_late_release(i915);
> out_cleanup_mmio:
> i915_driver_mmio_release(i915);
> +out_tiles_cleanup:
> + intel_gt_release_all(i915);
> out_runtime_pm_put:
> enable_rpm_wakeref_asserts(&i915->runtime_pm);
> i915_driver_late_release(i915);
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index a44e0c3298fc..c8bbc71f5f39 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -991,6 +991,12 @@ struct drm_i915_private {
> /* Abstract the submission mechanism (legacy ringbuffer or execlists) away */
> struct intel_gt gt0;
>
> + /*
> + * i915->gt[0] == &i915->gt0
> + */
> +#define I915_MAX_GT 4
> + struct intel_gt *gt[I915_MAX_GT];
> +
It would be nice if I915_MAX_GT was defined in a more basic header file so
that the definition of I915_MAX_GT would be available without the necessity of
including this heavier file i915_drv.h. Maybe gt/intel_gt.h would be a good
place, as that is where macro for_each_gt (a user of I915_MAX_GT) is defined.
The proximate reason for this request is that upcoming file i915_hwmon.h
uses I915_MAX_GT but does not need the rest of i915_drv.h .
-Dale
> struct {
> struct i915_gem_contexts {
> spinlock_t lock; /* locks list */
> diff --git a/drivers/gpu/drm/i915/intel_memory_region.h b/drivers/gpu/drm/i915/intel_memory_region.h
> index 5625c9c38993..6a6324a08e72 100644
> --- a/drivers/gpu/drm/i915/intel_memory_region.h
> +++ b/drivers/gpu/drm/i915/intel_memory_region.h
> @@ -30,6 +30,9 @@ enum intel_memory_type {
> enum intel_region_id {
> INTEL_REGION_SMEM = 0,
> INTEL_REGION_LMEM,
> + INTEL_REGION_LMEM1,
> + INTEL_REGION_LMEM2,
> + INTEL_REGION_LMEM3,
> INTEL_REGION_STOLEN_SMEM,
> INTEL_REGION_STOLEN_LMEM,
> INTEL_REGION_UNKNOWN, /* Should be last */
> diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
> index fc25ebf1a593..6ea23b306530 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.c
> +++ b/drivers/gpu/drm/i915/intel_uncore.c
> @@ -2020,14 +2020,11 @@ static int i915_pmic_bus_access_notifier(struct notifier_block *nb,
> return NOTIFY_OK;
> }
>
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr)
> {
> struct drm_i915_private *i915 = uncore->i915;
> - struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> - int mmio_bar;
> int mmio_size;
>
> - mmio_bar = GRAPHICS_VER(i915) == 2 ? 1 : 0;
> /*
> * Before gen4, the registers and the GTT are behind different BARs.
> * However, from gen4 onwards, the registers and the GTT are shared
> @@ -2044,7 +2041,7 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
> else
> mmio_size = 2 * 1024 * 1024;
>
> - uncore->regs = pci_iomap(pdev, mmio_bar, mmio_size);
> + uncore->regs = ioremap(phys_addr, mmio_size);
> if (uncore->regs == NULL) {
> drm_err(&i915->drm, "failed to map registers\n");
> return -EIO;
> @@ -2055,9 +2052,8 @@ int intel_uncore_setup_mmio(struct intel_uncore *uncore)
>
> void intel_uncore_cleanup_mmio(struct intel_uncore *uncore)
> {
> - struct pci_dev *pdev = to_pci_dev(uncore->i915->drm.dev);
> -
> - pci_iounmap(pdev, uncore->regs);
> + if (uncore->regs)
> + iounmap(uncore->regs);
> }
>
> void intel_uncore_init_early(struct intel_uncore *uncore,
> diff --git a/drivers/gpu/drm/i915/intel_uncore.h b/drivers/gpu/drm/i915/intel_uncore.h
> index 210fe2a71612..2989032b580b 100644
> --- a/drivers/gpu/drm/i915/intel_uncore.h
> +++ b/drivers/gpu/drm/i915/intel_uncore.h
> @@ -29,6 +29,7 @@
> #include <linux/notifier.h>
> #include <linux/hrtimer.h>
> #include <linux/io-64-nonatomic-lo-hi.h>
> +#include <linux/types.h>
>
> #include "i915_reg.h"
>
> @@ -219,7 +220,7 @@ void
> intel_uncore_mmio_debug_init_early(struct intel_uncore_mmio_debug *mmio_debug);
> void intel_uncore_init_early(struct intel_uncore *uncore,
> struct intel_gt *gt);
> -int intel_uncore_setup_mmio(struct intel_uncore *uncore);
> +int intel_uncore_setup_mmio(struct intel_uncore *uncore, phys_addr_t phys_addr);
> int intel_uncore_init_mmio(struct intel_uncore *uncore);
> void intel_uncore_prune_engine_fw_domains(struct intel_uncore *uncore,
> struct intel_gt *gt);
> diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> index 28a0f054009a..79520f217c90 100644
> --- a/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c
> @@ -73,7 +73,7 @@ static void mock_device_release(struct drm_device *dev)
> destroy_workqueue(i915->wq);
>
> intel_region_ttm_device_fini(i915);
> - intel_gt_driver_late_release(to_gt(i915));
> + intel_gt_driver_late_release(i915);
> intel_memory_regions_driver_release(i915);
>
> drm_mode_config_cleanup(&i915->drm);
> @@ -179,7 +179,6 @@ struct drm_i915_private *mock_gem_device(void)
>
> i915_gem_init__mm(i915);
> intel_gt_init_early(to_gt(i915), i915);
> - __intel_gt_init_early(to_gt(i915), i915);
> mock_uncore_init(&i915->uncore, i915);
> atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */
> to_gt(i915)->awake = -ENODEV;
> @@ -227,7 +226,7 @@ struct drm_i915_private *mock_gem_device(void)
> err_drv:
> intel_region_ttm_device_fini(i915);
> err_ttm:
> - intel_gt_driver_late_release(to_gt(i915));
> + intel_gt_driver_late_release(i915);
> intel_memory_regions_driver_release(i915);
> drm_mode_config_cleanup(&i915->drm);
> mock_destroy_device(i915);
> --
> 2.34.1
>
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