[PATCH 2/3] qxl: allow creation of pre-pinned objects and use for releases.
Dave Airlie
airlied at gmail.com
Tue Jul 23 19:00:56 PDT 2013
From: Dave Airlie <airlied at redhat.com>
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: Dave Airlie <airlied at redhat.com>
---
drivers/gpu/drm/qxl/qxl_cmd.c | 2 +-
drivers/gpu/drm/qxl/qxl_gem.c | 2 +-
drivers/gpu/drm/qxl/qxl_ioctl.c | 2 +-
drivers/gpu/drm/qxl/qxl_object.c | 23 +++++++++++------------
drivers/gpu/drm/qxl/qxl_object.h | 4 ++--
drivers/gpu/drm/qxl/qxl_release.c | 9 +++------
drivers/gpu/drm/qxl/qxl_ttm.c | 2 +-
7 files changed, 20 insertions(+), 24 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_cmd.c b/drivers/gpu/drm/qxl/qxl_cmd.c
index 93c2f2c..4e6a627 100644
--- a/drivers/gpu/drm/qxl/qxl_cmd.c
+++ b/drivers/gpu/drm/qxl/qxl_cmd.c
@@ -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;
diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c
index a235693..25e1777 100644
--- a/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/drivers/gpu/drm/qxl/qxl_gem.c
@@ -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(
diff --git a/drivers/gpu/drm/qxl/qxl_ioctl.c b/drivers/gpu/drm/qxl/qxl_ioctl.c
index 27f45e4..7448c5e 100644
--- a/drivers/gpu/drm/qxl/qxl_ioctl.c
+++ b/drivers/gpu/drm/qxl/qxl_ioctl.c
@@ -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))
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index 1191fe7..50e7a61 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -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)
diff --git a/drivers/gpu/drm/qxl/qxl_object.h b/drivers/gpu/drm/qxl/qxl_object.h
index ee7ad79..116637f 100644
--- a/drivers/gpu/drm/qxl/qxl_object.h
+++ b/drivers/gpu/drm/qxl/qxl_object.h
@@ -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);
diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index b443d67..b7f1271 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -118,7 +118,9 @@ static int qxl_release_bo_alloc(struct qxl_device *qdev,
struct qxl_bo **bo)
{
int ret;
- ret = qxl_bo_create(qdev, PAGE_SIZE, false, QXL_GEM_DOMAIN_VRAM, NULL,
+ /* pin releases bo's they are too messy to evict */
+ ret = qxl_bo_create(qdev, PAGE_SIZE, false, true,
+ QXL_GEM_DOMAIN_VRAM, NULL,
bo);
return ret;
}
@@ -216,11 +218,6 @@ int qxl_alloc_release_reserved(struct qxl_device *qdev, unsigned long size,
mutex_unlock(&qdev->release_mutex);
return ret;
}
-
- /* pin releases bo's they are too messy to evict */
- ret = qxl_bo_reserve(qdev->current_release_bo[cur_idx], false);
- qxl_bo_pin(qdev->current_release_bo[cur_idx], QXL_GEM_DOMAIN_VRAM, NULL);
- qxl_bo_unreserve(qdev->current_release_bo[cur_idx]);
}
bo = qxl_bo_ref(qdev->current_release_bo[cur_idx]);
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 489cb8c..1dfd84c 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -206,7 +206,7 @@ static void qxl_evict_flags(struct ttm_buffer_object *bo,
return;
}
qbo = container_of(bo, struct qxl_bo, tbo);
- qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU);
+ qxl_ttm_placement_from_domain(qbo, QXL_GEM_DOMAIN_CPU, false);
*placement = qbo->placement;
}
--
1.8.3.1
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