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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/i915/i915_vma.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_vma.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_vma.h | 498 |
1 files changed, 498 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h new file mode 100644 index 0000000000..e356dfb883 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -0,0 +1,498 @@ +/* + * Copyright © 2016 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#ifndef __I915_VMA_H__ +#define __I915_VMA_H__ + +#include <linux/io-mapping.h> +#include <linux/rbtree.h> + +#include <drm/drm_mm.h> + +#include "gt/intel_ggtt_fencing.h" +#include "gem/i915_gem_object.h" + +#include "i915_gem_gtt.h" + +#include "i915_active.h" +#include "i915_request.h" +#include "i915_vma_resource.h" +#include "i915_vma_types.h" + +struct i915_vma * +i915_vma_instance(struct drm_i915_gem_object *obj, + struct i915_address_space *vm, + const struct i915_gtt_view *view); + +void i915_vma_unpin_and_release(struct i915_vma **p_vma, unsigned int flags); +#define I915_VMA_RELEASE_MAP BIT(0) + +static inline bool i915_vma_is_active(const struct i915_vma *vma) +{ + return !i915_active_is_idle(&vma->active); +} + +/* do not reserve memory to prevent deadlocks */ +#define __EXEC_OBJECT_NO_RESERVE BIT(31) +#define __EXEC_OBJECT_NO_REQUEST_AWAIT BIT(30) + +int __must_check _i915_vma_move_to_active(struct i915_vma *vma, + struct i915_request *rq, + struct dma_fence *fence, + unsigned int flags); +static inline int __must_check +i915_vma_move_to_active(struct i915_vma *vma, struct i915_request *rq, + unsigned int flags) +{ + return _i915_vma_move_to_active(vma, rq, &rq->fence, flags); +} + +#define __i915_vma_flags(v) ((unsigned long *)&(v)->flags.counter) + +static inline bool i915_vma_is_ggtt(const struct i915_vma *vma) +{ + return test_bit(I915_VMA_GGTT_BIT, __i915_vma_flags(vma)); +} + +static inline bool i915_vma_is_dpt(const struct i915_vma *vma) +{ + return i915_is_dpt(vma->vm); +} + +static inline bool i915_vma_has_ggtt_write(const struct i915_vma *vma) +{ + return test_bit(I915_VMA_GGTT_WRITE_BIT, __i915_vma_flags(vma)); +} + +static inline void i915_vma_set_ggtt_write(struct i915_vma *vma) +{ + GEM_BUG_ON(!i915_vma_is_ggtt(vma)); + set_bit(I915_VMA_GGTT_WRITE_BIT, __i915_vma_flags(vma)); +} + +static inline bool i915_vma_unset_ggtt_write(struct i915_vma *vma) +{ + return test_and_clear_bit(I915_VMA_GGTT_WRITE_BIT, + __i915_vma_flags(vma)); +} + +void i915_vma_flush_writes(struct i915_vma *vma); + +static inline bool i915_vma_is_map_and_fenceable(const struct i915_vma *vma) +{ + return test_bit(I915_VMA_CAN_FENCE_BIT, __i915_vma_flags(vma)); +} + +static inline bool i915_vma_set_userfault(struct i915_vma *vma) +{ + GEM_BUG_ON(!i915_vma_is_map_and_fenceable(vma)); + return test_and_set_bit(I915_VMA_USERFAULT_BIT, __i915_vma_flags(vma)); +} + +static inline void i915_vma_unset_userfault(struct i915_vma *vma) +{ + return clear_bit(I915_VMA_USERFAULT_BIT, __i915_vma_flags(vma)); +} + +static inline bool i915_vma_has_userfault(const struct i915_vma *vma) +{ + return test_bit(I915_VMA_USERFAULT_BIT, __i915_vma_flags(vma)); +} + +static inline bool i915_vma_is_closed(const struct i915_vma *vma) +{ + return !list_empty(&vma->closed_link); +} + +/* Internal use only. */ +static inline u64 __i915_vma_size(const struct i915_vma *vma) +{ + return vma->node.size - 2 * vma->guard; +} + +/** + * i915_vma_size - Obtain the va range size of the vma + * @vma: The vma + * + * GPU virtual address space may be allocated with padding. This + * function returns the effective virtual address range size + * with padding subtracted. + * + * Return: The effective virtual address range size. + */ +static inline u64 i915_vma_size(const struct i915_vma *vma) +{ + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + return __i915_vma_size(vma); +} + +/* Internal use only. */ +static inline u64 __i915_vma_offset(const struct i915_vma *vma) +{ + /* The actual start of the vma->pages is after the guard pages. */ + return vma->node.start + vma->guard; +} + +/** + * i915_vma_offset - Obtain the va offset of the vma + * @vma: The vma + * + * GPU virtual address space may be allocated with padding. This + * function returns the effective virtual address offset the gpu + * should use to access the bound data. + * + * Return: The effective virtual address offset. + */ +static inline u64 i915_vma_offset(const struct i915_vma *vma) +{ + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + return __i915_vma_offset(vma); +} + +static inline u32 i915_ggtt_offset(const struct i915_vma *vma) +{ + GEM_BUG_ON(!i915_vma_is_ggtt(vma)); + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + GEM_BUG_ON(upper_32_bits(i915_vma_offset(vma))); + GEM_BUG_ON(upper_32_bits(i915_vma_offset(vma) + + i915_vma_size(vma) - 1)); + return lower_32_bits(i915_vma_offset(vma)); +} + +static inline u32 i915_ggtt_pin_bias(struct i915_vma *vma) +{ + return i915_vm_to_ggtt(vma->vm)->pin_bias; +} + +static inline struct i915_vma *i915_vma_get(struct i915_vma *vma) +{ + i915_gem_object_get(vma->obj); + return vma; +} + +static inline struct i915_vma *i915_vma_tryget(struct i915_vma *vma) +{ + if (likely(kref_get_unless_zero(&vma->obj->base.refcount))) + return vma; + + return NULL; +} + +static inline void i915_vma_put(struct i915_vma *vma) +{ + i915_gem_object_put(vma->obj); +} + +static inline long +i915_vma_compare(struct i915_vma *vma, + struct i915_address_space *vm, + const struct i915_gtt_view *view) +{ + ptrdiff_t cmp; + + GEM_BUG_ON(view && !i915_is_ggtt_or_dpt(vm)); + + cmp = ptrdiff(vma->vm, vm); + if (cmp) + return cmp; + + BUILD_BUG_ON(I915_GTT_VIEW_NORMAL != 0); + cmp = vma->gtt_view.type; + if (!view) + return cmp; + + cmp -= view->type; + if (cmp) + return cmp; + + assert_i915_gem_gtt_types(); + + /* gtt_view.type also encodes its size so that we both distinguish + * different views using it as a "type" and also use a compact (no + * accessing of uninitialised padding bytes) memcmp without storing + * an extra parameter or adding more code. + * + * To ensure that the memcmp is valid for all branches of the union, + * even though the code looks like it is just comparing one branch, + * we assert above that all branches have the same address, and that + * each branch has a unique type/size. + */ + BUILD_BUG_ON(I915_GTT_VIEW_NORMAL >= I915_GTT_VIEW_PARTIAL); + BUILD_BUG_ON(I915_GTT_VIEW_PARTIAL >= I915_GTT_VIEW_ROTATED); + BUILD_BUG_ON(I915_GTT_VIEW_ROTATED >= I915_GTT_VIEW_REMAPPED); + BUILD_BUG_ON(offsetof(typeof(*view), rotated) != + offsetof(typeof(*view), partial)); + BUILD_BUG_ON(offsetof(typeof(*view), rotated) != + offsetof(typeof(*view), remapped)); + return memcmp(&vma->gtt_view.partial, &view->partial, view->type); +} + +struct i915_vma_work *i915_vma_work(void); +int i915_vma_bind(struct i915_vma *vma, + unsigned int pat_index, + u32 flags, + struct i915_vma_work *work, + struct i915_vma_resource *vma_res); + +bool i915_gem_valid_gtt_space(struct i915_vma *vma, unsigned long color); +bool i915_vma_misplaced(const struct i915_vma *vma, + u64 size, u64 alignment, u64 flags); +void __i915_vma_set_map_and_fenceable(struct i915_vma *vma); +void i915_vma_revoke_mmap(struct i915_vma *vma); +void vma_invalidate_tlb(struct i915_address_space *vm, u32 *tlb); +struct dma_fence *__i915_vma_evict(struct i915_vma *vma, bool async); +int __i915_vma_unbind(struct i915_vma *vma); +int __must_check i915_vma_unbind(struct i915_vma *vma); +int __must_check i915_vma_unbind_async(struct i915_vma *vma, bool trylock_vm); +int __must_check i915_vma_unbind_unlocked(struct i915_vma *vma); +void i915_vma_unlink_ctx(struct i915_vma *vma); +void i915_vma_close(struct i915_vma *vma); +void i915_vma_reopen(struct i915_vma *vma); + +void i915_vma_destroy_locked(struct i915_vma *vma); +void i915_vma_destroy(struct i915_vma *vma); + +#define assert_vma_held(vma) dma_resv_assert_held((vma)->obj->base.resv) + +static inline void i915_vma_lock(struct i915_vma *vma) +{ + dma_resv_lock(vma->obj->base.resv, NULL); +} + +static inline void i915_vma_unlock(struct i915_vma *vma) +{ + dma_resv_unlock(vma->obj->base.resv); +} + +int __must_check +i915_vma_pin_ww(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, + u64 size, u64 alignment, u64 flags); + +static inline int __must_check +i915_vma_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) +{ + struct i915_gem_ww_ctx ww; + int err; + + i915_gem_ww_ctx_init(&ww, true); +retry: + err = i915_gem_object_lock(vma->obj, &ww); + if (!err) + err = i915_vma_pin_ww(vma, &ww, size, alignment, flags); + if (err == -EDEADLK) { + err = i915_gem_ww_ctx_backoff(&ww); + if (!err) + goto retry; + } + i915_gem_ww_ctx_fini(&ww); + + return err; +} + +int i915_ggtt_pin(struct i915_vma *vma, struct i915_gem_ww_ctx *ww, + u32 align, unsigned int flags); + +static inline int i915_vma_pin_count(const struct i915_vma *vma) +{ + return atomic_read(&vma->flags) & I915_VMA_PIN_MASK; +} + +static inline bool i915_vma_is_pinned(const struct i915_vma *vma) +{ + return i915_vma_pin_count(vma); +} + +static inline void __i915_vma_pin(struct i915_vma *vma) +{ + atomic_inc(&vma->flags); + GEM_BUG_ON(!i915_vma_is_pinned(vma)); +} + +static inline void __i915_vma_unpin(struct i915_vma *vma) +{ + GEM_BUG_ON(!i915_vma_is_pinned(vma)); + atomic_dec(&vma->flags); +} + +static inline void i915_vma_unpin(struct i915_vma *vma) +{ + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + __i915_vma_unpin(vma); +} + +static inline bool i915_vma_is_bound(const struct i915_vma *vma, + unsigned int where) +{ + return atomic_read(&vma->flags) & where; +} + +static inline bool i915_node_color_differs(const struct drm_mm_node *node, + unsigned long color) +{ + return drm_mm_node_allocated(node) && node->color != color; +} + +/** + * i915_vma_pin_iomap - calls ioremap_wc to map the GGTT VMA via the aperture + * @vma: VMA to iomap + * + * The passed in VMA has to be pinned in the global GTT mappable region. + * An extra pinning of the VMA is acquired for the return iomapping, + * the caller must call i915_vma_unpin_iomap to relinquish the pinning + * after the iomapping is no longer required. + * + * Returns a valid iomapped pointer or ERR_PTR. + */ +void __iomem *i915_vma_pin_iomap(struct i915_vma *vma); + +/** + * i915_vma_unpin_iomap - unpins the mapping returned from i915_vma_iomap + * @vma: VMA to unpin + * + * Unpins the previously iomapped VMA from i915_vma_pin_iomap(). + * + * This function is only valid to be called on a VMA previously + * iomapped by the caller with i915_vma_pin_iomap(). + */ +void i915_vma_unpin_iomap(struct i915_vma *vma); + +/** + * i915_vma_pin_fence - pin fencing state + * @vma: vma to pin fencing for + * + * This pins the fencing state (whether tiled or untiled) to make sure the + * vma (and its object) is ready to be used as a scanout target. Fencing + * status must be synchronize first by calling i915_vma_get_fence(): + * + * The resulting fence pin reference must be released again with + * i915_vma_unpin_fence(). + * + * Returns: + * + * True if the vma has a fence, false otherwise. + */ +int __must_check i915_vma_pin_fence(struct i915_vma *vma); +void i915_vma_revoke_fence(struct i915_vma *vma); + +int __i915_vma_pin_fence(struct i915_vma *vma); + +static inline void __i915_vma_unpin_fence(struct i915_vma *vma) +{ + GEM_BUG_ON(atomic_read(&vma->fence->pin_count) <= 0); + atomic_dec(&vma->fence->pin_count); +} + +/** + * i915_vma_unpin_fence - unpin fencing state + * @vma: vma to unpin fencing for + * + * This releases the fence pin reference acquired through + * i915_vma_pin_fence. It will handle both objects with and without an + * attached fence correctly, callers do not need to distinguish this. + */ +static inline void +i915_vma_unpin_fence(struct i915_vma *vma) +{ + if (vma->fence) + __i915_vma_unpin_fence(vma); +} + +static inline int i915_vma_fence_id(const struct i915_vma *vma) +{ + return vma->fence ? vma->fence->id : -1; +} + +void i915_vma_parked(struct intel_gt *gt); + +static inline bool i915_vma_is_scanout(const struct i915_vma *vma) +{ + return test_bit(I915_VMA_SCANOUT_BIT, __i915_vma_flags(vma)); +} + +static inline void i915_vma_mark_scanout(struct i915_vma *vma) +{ + set_bit(I915_VMA_SCANOUT_BIT, __i915_vma_flags(vma)); +} + +static inline void i915_vma_clear_scanout(struct i915_vma *vma) +{ + clear_bit(I915_VMA_SCANOUT_BIT, __i915_vma_flags(vma)); +} + +void i915_ggtt_clear_scanout(struct drm_i915_gem_object *obj); + +#define for_each_until(cond) if (cond) break; else + +/** + * for_each_ggtt_vma - Iterate over the GGTT VMA belonging to an object. + * @V: the #i915_vma iterator + * @OBJ: the #drm_i915_gem_object + * + * GGTT VMA are placed at the being of the object's vma_list, see + * vma_create(), so we can stop our walk as soon as we see a ppgtt VMA, + * or the list is empty ofc. + */ +#define for_each_ggtt_vma(V, OBJ) \ + list_for_each_entry(V, &(OBJ)->vma.list, obj_link) \ + for_each_until(!i915_vma_is_ggtt(V)) + +struct i915_vma *i915_vma_make_unshrinkable(struct i915_vma *vma); +void i915_vma_make_shrinkable(struct i915_vma *vma); +void i915_vma_make_purgeable(struct i915_vma *vma); + +int i915_vma_wait_for_bind(struct i915_vma *vma); + +static inline int i915_vma_sync(struct i915_vma *vma) +{ + /* Wait for the asynchronous bindings and pending GPU reads */ + return i915_active_wait(&vma->active); +} + +/** + * i915_vma_get_current_resource - Get the current resource of the vma + * @vma: The vma to get the current resource from. + * + * It's illegal to call this function if the vma is not bound. + * + * Return: A refcounted pointer to the current vma resource + * of the vma, assuming the vma is bound. + */ +static inline struct i915_vma_resource * +i915_vma_get_current_resource(struct i915_vma *vma) +{ + return i915_vma_resource_get(vma->resource); +} + +#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) +void i915_vma_resource_init_from_vma(struct i915_vma_resource *vma_res, + struct i915_vma *vma); +#endif + +void i915_vma_module_exit(void); +int i915_vma_module_init(void); + +I915_SELFTEST_DECLARE(int i915_vma_get_pages(struct i915_vma *vma)); +I915_SELFTEST_DECLARE(void i915_vma_put_pages(struct i915_vma *vma)); + +#endif |