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Commit 4f49ec92 authored by Dave Airlie's avatar Dave Airlie
Browse files

qxl: allow creation of pre-pinned objects and use for releases. 



In order to fix an issue with reservations we need to create the releases
as pre-pinned objects, this changes the placement interface and bo creation
interface to allow creating pinned objects to save nested reservations later.

This is just a stepping stone to main fix which follows to actually fix how
qxl deals with reservations.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 0665f9f8

drivers/gpu/drm/qxl/qxl_cmd.c

+1 −1
Original line number Diff line number Diff line
@@ -266,7 +266,7 @@ int qxl_alloc_bo_reserved(struct qxl_device *qdev, unsigned long size, 
	int ret;



	ret = qxl_bo_create(qdev, size, false /* not kernel - device */,

			    QXL_GEM_DOMAIN_VRAM, NULL, &bo);

			    false, QXL_GEM_DOMAIN_VRAM, NULL, &bo);

	if (ret) {

		DRM_ERROR("failed to allocate VRAM BO\n");

		return ret;

drivers/gpu/drm/qxl/qxl_gem.c

+1 −1
Original line number Diff line number Diff line
@@ -55,7 +55,7 @@ int qxl_gem_object_create(struct qxl_device *qdev, int size, 
	/* At least align on page size */

	if (alignment < PAGE_SIZE)

		alignment = PAGE_SIZE;

	r = qxl_bo_create(qdev, size, kernel, initial_domain, surf, &qbo);

	r = qxl_bo_create(qdev, size, kernel, false, initial_domain, surf, &qbo);

	if (r) {

		if (r != -ERESTARTSYS)

			DRM_ERROR(

drivers/gpu/drm/qxl/qxl_ioctl.c

+1 −1
Original line number Diff line number Diff line
@@ -305,7 +305,7 @@ static int qxl_update_area_ioctl(struct drm_device *dev, void *data, 
		goto out;



	if (!qobj->pin_count) {

		qxl_ttm_placement_from_domain(qobj, qobj->type);

		qxl_ttm_placement_from_domain(qobj, qobj->type, false);

		ret = ttm_bo_validate(&qobj->tbo, &qobj->placement,

				      true, false);

		if (unlikely(ret))

drivers/gpu/drm/qxl/qxl_object.c

+11 −12
Original line number Diff line number Diff line
@@ -51,20 +51,21 @@ bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo) 
	return false;

}



void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain)

void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned)

{

	u32 c = 0;

	u32 pflag = pinned ? TTM_PL_FLAG_NO_EVICT : 0;



	qbo->placement.fpfn = 0;

	qbo->placement.lpfn = 0;

	qbo->placement.placement = qbo->placements;

	qbo->placement.busy_placement = qbo->placements;

	if (domain == QXL_GEM_DOMAIN_VRAM)

		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM;

		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM | pflag;

	if (domain == QXL_GEM_DOMAIN_SURFACE)

		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0;

		qbo->placements[c++] = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV0 | pflag;

	if (domain == QXL_GEM_DOMAIN_CPU)

		qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;

		qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | pflag;

	if (!c)

		qbo->placements[c++] = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;

	qbo->placement.num_placement = c;
@@ -73,7 +74,7 @@ void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain) 




int qxl_bo_create(struct qxl_device *qdev,

		  unsigned long size, bool kernel, u32 domain,

		  unsigned long size, bool kernel, bool pinned, u32 domain,

		  struct qxl_surface *surf,

		  struct qxl_bo **bo_ptr)

{
@@ -99,7 +100,7 @@ int qxl_bo_create(struct qxl_device *qdev, 
	}

	bo->gem_base.driver_private = NULL;

	bo->type = domain;

	bo->pin_count = 0;

	bo->pin_count = pinned ? 1 : 0;

	bo->surface_id = 0;

	qxl_fence_init(qdev, &bo->fence);

	INIT_LIST_HEAD(&bo->list);
@@ -107,7 +108,7 @@ int qxl_bo_create(struct qxl_device *qdev, 
	if (surf)

		bo->surf = *surf;



	qxl_ttm_placement_from_domain(bo, domain);

	qxl_ttm_placement_from_domain(bo, domain, pinned);



	r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,

			&bo->placement, 0, !kernel, NULL, size,
@@ -228,7 +229,7 @@ struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo) 
int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)

{

	struct qxl_device *qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;

	int r, i;

	int r;



	if (bo->pin_count) {

		bo->pin_count++;
@@ -236,9 +237,7 @@ int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr) 
			*gpu_addr = qxl_bo_gpu_offset(bo);

		return 0;

	}

	qxl_ttm_placement_from_domain(bo, domain);

	for (i = 0; i < bo->placement.num_placement; i++)

		bo->placements[i] |= TTM_PL_FLAG_NO_EVICT;

	qxl_ttm_placement_from_domain(bo, domain, true);

	r = ttm_bo_validate(&bo->tbo, &bo->placement, false, false);

	if (likely(r == 0)) {

		bo->pin_count = 1;
@@ -350,7 +349,7 @@ int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo) 
		return ret;



	if (!bo->pin_count) {

		qxl_ttm_placement_from_domain(bo, bo->type);

		qxl_ttm_placement_from_domain(bo, bo->type, false);

		ret = ttm_bo_validate(&bo->tbo, &bo->placement,

				      true, false);

		if (ret)

drivers/gpu/drm/qxl/qxl_object.h

+2 −2
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ static inline int qxl_bo_wait(struct qxl_bo *bo, u32 *mem_type, 


extern int qxl_bo_create(struct qxl_device *qdev,

			 unsigned long size,

			 bool kernel, u32 domain,

			 bool kernel, bool pinned, u32 domain,

			 struct qxl_surface *surf,

			 struct qxl_bo **bo_ptr);

extern int qxl_bo_kmap(struct qxl_bo *bo, void **ptr);
@@ -99,7 +99,7 @@ extern struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo); 
extern void qxl_bo_unref(struct qxl_bo **bo);

extern int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr);

extern int qxl_bo_unpin(struct qxl_bo *bo);

extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain);

extern void qxl_ttm_placement_from_domain(struct qxl_bo *qbo, u32 domain, bool pinned);

extern bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo);



extern int qxl_bo_list_add(struct qxl_reloc_list *reloc_list, struct qxl_bo *bo);