Commit 12b07256 authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Export ppgtt_bind_vma 



Reuse the ppgtt_bind_vma() for aliasing_ppgtt_bind_vma() so we can
reduce some code near-duplication. The catch is that we need to then
pass along the i915_address_space and not rely on vma->vm, as they
differ with the aliasing-ppgtt.

Signed-off-by: default avatarChris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: default avatarAndi Shyti <andi.shyti@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200703102519.26539-1-chris@chris-wilson.co.uk
parent 5cecf507

drivers/gpu/drm/i915/gem/i915_gem_client_blt.c

+5 −4
Original line number Diff line number Diff line
@@ -32,16 +32,17 @@ static void vma_clear_pages(struct i915_vma *vma) 
	vma->pages = NULL;

}



static int vma_bind(struct i915_vma *vma,

static int vma_bind(struct i915_address_space *vm,

		    struct i915_vma *vma,

		    enum i915_cache_level cache_level,

		    u32 flags)

{

	return vma->vm->vma_ops.bind_vma(vma, cache_level, flags);

	return vm->vma_ops.bind_vma(vm, vma, cache_level, flags);

}



static void vma_unbind(struct i915_vma *vma)

static void vma_unbind(struct i915_address_space *vm, struct i915_vma *vma)

{

	vma->vm->vma_ops.unbind_vma(vma);

	vm->vma_ops.unbind_vma(vm, vma);

}



static const struct i915_vma_ops proxy_vma_ops = {

drivers/gpu/drm/i915/gt/gen6_ppgtt.c

+4 −3
Original line number Diff line number Diff line
@@ -299,11 +299,12 @@ static void pd_vma_clear_pages(struct i915_vma *vma) 
	vma->pages = NULL;

}



static int pd_vma_bind(struct i915_vma *vma,

static int pd_vma_bind(struct i915_address_space *vm,

		       struct i915_vma *vma,

		       enum i915_cache_level cache_level,

		       u32 unused)

{

	struct i915_ggtt *ggtt = i915_vm_to_ggtt(vma->vm);

	struct i915_ggtt *ggtt = i915_vm_to_ggtt(vm);

	struct gen6_ppgtt *ppgtt = vma->private;

	u32 ggtt_offset = i915_ggtt_offset(vma) / I915_GTT_PAGE_SIZE;
@@ -314,7 +315,7 @@ static int pd_vma_bind(struct i915_vma *vma, 
	return 0;

}



static void pd_vma_unbind(struct i915_vma *vma)

static void pd_vma_unbind(struct i915_address_space *vm, struct i915_vma *vma)

{

	struct gen6_ppgtt *ppgtt = vma->private;

	struct i915_page_directory * const pd = ppgtt->base.pd;

drivers/gpu/drm/i915/gt/intel_ggtt.c

+17 −32
Original line number Diff line number Diff line
@@ -436,7 +436,8 @@ static void i915_ggtt_clear_range(struct i915_address_space *vm, 
	intel_gtt_clear_range(start >> PAGE_SHIFT, length >> PAGE_SHIFT);

}



static int ggtt_bind_vma(struct i915_vma *vma,

static int ggtt_bind_vma(struct i915_address_space *vm,

			 struct i915_vma *vma,

			 enum i915_cache_level cache_level,

			 u32 flags)

{
@@ -451,15 +452,15 @@ static int ggtt_bind_vma(struct i915_vma *vma, 
	if (i915_gem_object_is_readonly(obj))

		pte_flags |= PTE_READ_ONLY;



	vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);

	vm->insert_entries(vm, vma, cache_level, pte_flags);

	vma->page_sizes.gtt = I915_GTT_PAGE_SIZE;



	return 0;

}



static void ggtt_unbind_vma(struct i915_vma *vma)

static void ggtt_unbind_vma(struct i915_address_space *vm, struct i915_vma *vma)

{

	vma->vm->clear_range(vma->vm, vma->node.start, vma->size);

	vm->clear_range(vm, vma->node.start, vma->size);

}



static int ggtt_reserve_guc_top(struct i915_ggtt *ggtt)
@@ -567,7 +568,8 @@ err: 
	return ret;

}



static int aliasing_gtt_bind_vma(struct i915_vma *vma,

static int aliasing_gtt_bind_vma(struct i915_address_space *vm,

				 struct i915_vma *vma,

				 enum i915_cache_level cache_level,

				 u32 flags)

{
@@ -580,44 +582,27 @@ static int aliasing_gtt_bind_vma(struct i915_vma *vma, 
		pte_flags |= PTE_READ_ONLY;



	if (flags & I915_VMA_LOCAL_BIND) {

		struct i915_ppgtt *alias = i915_vm_to_ggtt(vma->vm)->alias;

		struct i915_ppgtt *alias = i915_vm_to_ggtt(vm)->alias;



		if (flags & I915_VMA_ALLOC) {

			ret = alias->vm.allocate_va_range(&alias->vm,

							  vma->node.start,

							  vma->size);

		ret = ppgtt_bind_vma(&alias->vm, vma, cache_level, flags);

		if (ret)

			return ret;



			set_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma));

		}



		GEM_BUG_ON(!test_bit(I915_VMA_ALLOC_BIT,

				     __i915_vma_flags(vma)));

		alias->vm.insert_entries(&alias->vm, vma,

					 cache_level, pte_flags);

	}



	if (flags & I915_VMA_GLOBAL_BIND)

		vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);

		vm->insert_entries(vm, vma, cache_level, pte_flags);



	return 0;

}



static void aliasing_gtt_unbind_vma(struct i915_vma *vma)

static void aliasing_gtt_unbind_vma(struct i915_address_space *vm,

				    struct i915_vma *vma)

{

	if (i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND)) {

		struct i915_address_space *vm = vma->vm;



	if (i915_vma_is_bound(vma, I915_VMA_GLOBAL_BIND))

		vm->clear_range(vm, vma->node.start, vma->size);

	}



	if (test_and_clear_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma))) {

		struct i915_address_space *vm =

			&i915_vm_to_ggtt(vma->vm)->alias->vm;



		vm->clear_range(vm, vma->node.start, vma->size);

	}

	if (i915_vma_is_bound(vma, I915_VMA_LOCAL_BIND))

		ppgtt_unbind_vma(&i915_vm_to_ggtt(vm)->alias->vm, vma);

}



static int init_aliasing_ppgtt(struct i915_ggtt *ggtt)

drivers/gpu/drm/i915/gt/intel_gtt.h

+11 −2
Original line number Diff line number Diff line
@@ -198,14 +198,16 @@ struct intel_gt; 


struct i915_vma_ops {

	/* Map an object into an address space with the given cache flags. */

	int (*bind_vma)(struct i915_vma *vma,

	int (*bind_vma)(struct i915_address_space *vm,

			struct i915_vma *vma,

			enum i915_cache_level cache_level,

			u32 flags);

	/*

	 * Unmap an object from an address space. This usually consists of

	 * setting the valid PTE entries to a reserved scratch page.

	 */

	void (*unbind_vma)(struct i915_vma *vma);

	void (*unbind_vma)(struct i915_address_space *vm,

			   struct i915_vma *vma);



	int (*set_pages)(struct i915_vma *vma);

	void (*clear_pages)(struct i915_vma *vma);
@@ -566,6 +568,13 @@ int ggtt_set_pages(struct i915_vma *vma); 
int ppgtt_set_pages(struct i915_vma *vma);

void clear_pages(struct i915_vma *vma);



int ppgtt_bind_vma(struct i915_address_space *vm,

		   struct i915_vma *vma,

		   enum i915_cache_level cache_level,

		   u32 flags);

void ppgtt_unbind_vma(struct i915_address_space *vm,

		      struct i915_vma *vma);



void gtt_write_workarounds(struct intel_gt *gt);



void setup_private_pat(struct intel_uncore *uncore);

drivers/gpu/drm/i915/gt/intel_ppgtt.c

+9 −10
Original line number Diff line number Diff line
@@ -155,16 +155,16 @@ struct i915_ppgtt *i915_ppgtt_create(struct intel_gt *gt) 
	return ppgtt;

}



static int ppgtt_bind_vma(struct i915_vma *vma,

int ppgtt_bind_vma(struct i915_address_space *vm,

		   struct i915_vma *vma,

		   enum i915_cache_level cache_level,

		   u32 flags)

{

	u32 pte_flags;

	int err;



	if (flags & I915_VMA_ALLOC) {

		err = vma->vm->allocate_va_range(vma->vm,

						 vma->node.start, vma->size);

	if (!test_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma))) {

		err = vm->allocate_va_range(vm, vma->node.start, vma->size);

		if (err)

			return err;
@@ -176,17 +176,16 @@ static int ppgtt_bind_vma(struct i915_vma *vma, 
	if (i915_gem_object_is_readonly(vma->obj))

		pte_flags |= PTE_READ_ONLY;



	GEM_BUG_ON(!test_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma)));

	vma->vm->insert_entries(vma->vm, vma, cache_level, pte_flags);

	vm->insert_entries(vm, vma, cache_level, pte_flags);

	wmb();



	return 0;

}



static void ppgtt_unbind_vma(struct i915_vma *vma)

void ppgtt_unbind_vma(struct i915_address_space *vm, struct i915_vma *vma)

{

	if (test_and_clear_bit(I915_VMA_ALLOC_BIT, __i915_vma_flags(vma)))

		vma->vm->clear_range(vma->vm, vma->node.start, vma->size);

		vm->clear_range(vm, vma->node.start, vma->size);

}



int ppgtt_set_pages(struct i915_vma *vma)

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