360 lines
8.5 KiB
C
360 lines
8.5 KiB
C
|
/*
|
||
|
|
* Copyright 2013 Red Hat Inc.
|
||
|
|
*
|
||
|
|
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
|
||
|
|
*
|
||
|
|
* Authors: Dave Airlie
|
||
|
|
* Alon Levy
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "qxl_drv.h"
|
||
|
|
#include "qxl_object.h"
|
||
|
|
|
||
|
|
#include <linux/io-mapping.h>
|
||
|
|
static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
|
||
|
|
{
|
||
|
|
struct qxl_bo *bo;
|
||
|
|
struct qxl_device *qdev;
|
||
|
|
|
||
|
|
bo = to_qxl_bo(tbo);
|
||
|
|
qdev = (struct qxl_device *)bo->gem_base.dev->dev_private;
|
||
|
|
|
||
|
|
qxl_surface_evict(qdev, bo, false);
|
||
|
|
mutex_lock(&qdev->gem.mutex);
|
||
|
|
list_del_init(&bo->list);
|
||
|
|
mutex_unlock(&qdev->gem.mutex);
|
||
|
|
drm_gem_object_release(&bo->gem_base);
|
||
|
|
kfree(bo);
|
||
|
|
}
|
||
|
|
|
||
|
|
bool qxl_ttm_bo_is_qxl_bo(struct ttm_buffer_object *bo)
|
||
|
|
{
|
||
|
|
if (bo->destroy == &qxl_ttm_bo_destroy)
|
||
|
|
return true;
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
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;
|
||
|
|
unsigned i;
|
||
|
|
|
||
|
|
qbo->placement.placement = qbo->placements;
|
||
|
|
qbo->placement.busy_placement = qbo->placements;
|
||
|
|
if (domain == QXL_GEM_DOMAIN_VRAM)
|
||
|
|
qbo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_VRAM | pflag;
|
||
|
|
if (domain == QXL_GEM_DOMAIN_SURFACE)
|
||
|
|
qbo->placements[c++].flags = TTM_PL_FLAG_CACHED | TTM_PL_FLAG_PRIV | pflag;
|
||
|
|
if (domain == QXL_GEM_DOMAIN_CPU)
|
||
|
|
qbo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM | pflag;
|
||
|
|
if (!c)
|
||
|
|
qbo->placements[c++].flags = TTM_PL_MASK_CACHING | TTM_PL_FLAG_SYSTEM;
|
||
|
|
qbo->placement.num_placement = c;
|
||
|
|
qbo->placement.num_busy_placement = c;
|
||
|
|
for (i = 0; i < c; ++i) {
|
||
|
|
qbo->placements[i].fpfn = 0;
|
||
|
|
qbo->placements[i].lpfn = 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
int qxl_bo_create(struct qxl_device *qdev,
|
||
|
|
unsigned long size, bool kernel, bool pinned, u32 domain,
|
||
|
|
struct qxl_surface *surf,
|
||
|
|
struct qxl_bo **bo_ptr)
|
||
|
|
{
|
||
|
|
struct qxl_bo *bo;
|
||
|
|
enum ttm_bo_type type;
|
||
|
|
int r;
|
||
|
|
|
||
|
|
if (kernel)
|
||
|
|
type = ttm_bo_type_kernel;
|
||
|
|
else
|
||
|
|
type = ttm_bo_type_device;
|
||
|
|
*bo_ptr = NULL;
|
||
|
|
bo = kzalloc(sizeof(struct qxl_bo), GFP_KERNEL);
|
||
|
|
if (bo == NULL)
|
||
|
|
return -ENOMEM;
|
||
|
|
size = roundup(size, PAGE_SIZE);
|
||
|
|
r = drm_gem_object_init(&qdev->ddev, &bo->gem_base, size);
|
||
|
|
if (unlikely(r)) {
|
||
|
|
kfree(bo);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
bo->type = domain;
|
||
|
|
bo->pin_count = pinned ? 1 : 0;
|
||
|
|
bo->surface_id = 0;
|
||
|
|
INIT_LIST_HEAD(&bo->list);
|
||
|
|
|
||
|
|
if (surf)
|
||
|
|
bo->surf = *surf;
|
||
|
|
|
||
|
|
qxl_ttm_placement_from_domain(bo, domain, pinned);
|
||
|
|
|
||
|
|
r = ttm_bo_init(&qdev->mman.bdev, &bo->tbo, size, type,
|
||
|
|
&bo->placement, 0, !kernel, size,
|
||
|
|
NULL, NULL, &qxl_ttm_bo_destroy);
|
||
|
|
if (unlikely(r != 0)) {
|
||
|
|
if (r != -ERESTARTSYS)
|
||
|
|
dev_err(qdev->ddev.dev,
|
||
|
|
"object_init failed for (%lu, 0x%08X)\n",
|
||
|
|
size, domain);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
*bo_ptr = bo;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int qxl_bo_kmap(struct qxl_bo *bo, void **ptr)
|
||
|
|
{
|
||
|
|
bool is_iomem;
|
||
|
|
int r;
|
||
|
|
|
||
|
|
if (bo->kptr) {
|
||
|
|
if (ptr)
|
||
|
|
*ptr = bo->kptr;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.num_pages, &bo->kmap);
|
||
|
|
if (r)
|
||
|
|
return r;
|
||
|
|
bo->kptr = ttm_kmap_obj_virtual(&bo->kmap, &is_iomem);
|
||
|
|
if (ptr)
|
||
|
|
*ptr = bo->kptr;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev,
|
||
|
|
struct qxl_bo *bo, int page_offset)
|
||
|
|
{
|
||
|
|
struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
|
||
|
|
void *rptr;
|
||
|
|
int ret;
|
||
|
|
struct io_mapping *map;
|
||
|
|
|
||
|
|
if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
|
||
|
|
map = qdev->vram_mapping;
|
||
|
|
else if (bo->tbo.mem.mem_type == TTM_PL_PRIV)
|
||
|
|
map = qdev->surface_mapping;
|
||
|
|
else
|
||
|
|
goto fallback;
|
||
|
|
|
||
|
|
(void) ttm_mem_io_lock(man, false);
|
||
|
|
ret = ttm_mem_io_reserve(bo->tbo.bdev, &bo->tbo.mem);
|
||
|
|
ttm_mem_io_unlock(man);
|
||
|
|
|
||
|
|
return io_mapping_map_atomic_wc(map, bo->tbo.mem.bus.offset + page_offset);
|
||
|
|
fallback:
|
||
|
|
if (bo->kptr) {
|
||
|
|
rptr = bo->kptr + (page_offset * PAGE_SIZE);
|
||
|
|
return rptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = qxl_bo_kmap(bo, &rptr);
|
||
|
|
if (ret)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
rptr += page_offset * PAGE_SIZE;
|
||
|
|
return rptr;
|
||
|
|
}
|
||
|
|
|
||
|
|
void qxl_bo_kunmap(struct qxl_bo *bo)
|
||
|
|
{
|
||
|
|
if (bo->kptr == NULL)
|
||
|
|
return;
|
||
|
|
bo->kptr = NULL;
|
||
|
|
ttm_bo_kunmap(&bo->kmap);
|
||
|
|
}
|
||
|
|
|
||
|
|
void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
|
||
|
|
struct qxl_bo *bo, void *pmap)
|
||
|
|
{
|
||
|
|
struct ttm_mem_type_manager *man = &bo->tbo.bdev->man[bo->tbo.mem.mem_type];
|
||
|
|
struct io_mapping *map;
|
||
|
|
|
||
|
|
if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
|
||
|
|
map = qdev->vram_mapping;
|
||
|
|
else if (bo->tbo.mem.mem_type == TTM_PL_PRIV)
|
||
|
|
map = qdev->surface_mapping;
|
||
|
|
else
|
||
|
|
goto fallback;
|
||
|
|
|
||
|
|
io_mapping_unmap_atomic(pmap);
|
||
|
|
|
||
|
|
(void) ttm_mem_io_lock(man, false);
|
||
|
|
ttm_mem_io_free(bo->tbo.bdev, &bo->tbo.mem);
|
||
|
|
ttm_mem_io_unlock(man);
|
||
|
|
return ;
|
||
|
|
fallback:
|
||
|
|
qxl_bo_kunmap(bo);
|
||
|
|
}
|
||
|
|
|
||
|
|
void qxl_bo_unref(struct qxl_bo **bo)
|
||
|
|
{
|
||
|
|
if ((*bo) == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
drm_gem_object_put_unlocked(&(*bo)->gem_base);
|
||
|
|
*bo = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct qxl_bo *qxl_bo_ref(struct qxl_bo *bo)
|
||
|
|
{
|
||
|
|
drm_gem_object_get(&bo->gem_base);
|
||
|
|
return bo;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
|
||
|
|
{
|
||
|
|
struct ttm_operation_ctx ctx = { false, false };
|
||
|
|
struct drm_device *ddev = bo->gem_base.dev;
|
||
|
|
int r;
|
||
|
|
|
||
|
|
if (bo->pin_count) {
|
||
|
|
bo->pin_count++;
|
||
|
|
if (gpu_addr)
|
||
|
|
*gpu_addr = qxl_bo_gpu_offset(bo);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
qxl_ttm_placement_from_domain(bo, domain, true);
|
||
|
|
r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
|
||
|
|
if (likely(r == 0)) {
|
||
|
|
bo->pin_count = 1;
|
||
|
|
if (gpu_addr != NULL)
|
||
|
|
*gpu_addr = qxl_bo_gpu_offset(bo);
|
||
|
|
}
|
||
|
|
if (unlikely(r != 0))
|
||
|
|
dev_err(ddev->dev, "%p pin failed\n", bo);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __qxl_bo_unpin(struct qxl_bo *bo)
|
||
|
|
{
|
||
|
|
struct ttm_operation_ctx ctx = { false, false };
|
||
|
|
struct drm_device *ddev = bo->gem_base.dev;
|
||
|
|
int r, i;
|
||
|
|
|
||
|
|
if (!bo->pin_count) {
|
||
|
|
dev_warn(ddev->dev, "%p unpin not necessary\n", bo);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
bo->pin_count--;
|
||
|
|
if (bo->pin_count)
|
||
|
|
return 0;
|
||
|
|
for (i = 0; i < bo->placement.num_placement; i++)
|
||
|
|
bo->placements[i].flags &= ~TTM_PL_FLAG_NO_EVICT;
|
||
|
|
r = ttm_bo_validate(&bo->tbo, &bo->placement, &ctx);
|
||
|
|
if (unlikely(r != 0))
|
||
|
|
dev_err(ddev->dev, "%p validate failed for unpin\n", bo);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Reserve the BO before pinning the object. If the BO was reserved
|
||
|
|
* beforehand, use the internal version directly __qxl_bo_pin.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
int qxl_bo_pin(struct qxl_bo *bo, u32 domain, u64 *gpu_addr)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
|
||
|
|
r = qxl_bo_reserve(bo, false);
|
||
|
|
if (r)
|
||
|
|
return r;
|
||
|
|
|
||
|
|
r = __qxl_bo_pin(bo, bo->type, NULL);
|
||
|
|
qxl_bo_unreserve(bo);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Reserve the BO before pinning the object. If the BO was reserved
|
||
|
|
* beforehand, use the internal version directly __qxl_bo_unpin.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
int qxl_bo_unpin(struct qxl_bo *bo)
|
||
|
|
{
|
||
|
|
int r;
|
||
|
|
|
||
|
|
r = qxl_bo_reserve(bo, false);
|
||
|
|
if (r)
|
||
|
|
return r;
|
||
|
|
|
||
|
|
r = __qxl_bo_unpin(bo);
|
||
|
|
qxl_bo_unreserve(bo);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
void qxl_bo_force_delete(struct qxl_device *qdev)
|
||
|
|
{
|
||
|
|
struct qxl_bo *bo, *n;
|
||
|
|
|
||
|
|
if (list_empty(&qdev->gem.objects))
|
||
|
|
return;
|
||
|
|
dev_err(qdev->ddev.dev, "Userspace still has active objects !\n");
|
||
|
|
list_for_each_entry_safe(bo, n, &qdev->gem.objects, list) {
|
||
|
|
dev_err(qdev->ddev.dev, "%p %p %lu %lu force free\n",
|
||
|
|
&bo->gem_base, bo, (unsigned long)bo->gem_base.size,
|
||
|
|
*((unsigned long *)&bo->gem_base.refcount));
|
||
|
|
mutex_lock(&qdev->gem.mutex);
|
||
|
|
list_del_init(&bo->list);
|
||
|
|
mutex_unlock(&qdev->gem.mutex);
|
||
|
|
/* this should unref the ttm bo */
|
||
|
|
drm_gem_object_put_unlocked(&bo->gem_base);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int qxl_bo_init(struct qxl_device *qdev)
|
||
|
|
{
|
||
|
|
return qxl_ttm_init(qdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
void qxl_bo_fini(struct qxl_device *qdev)
|
||
|
|
{
|
||
|
|
qxl_ttm_fini(qdev);
|
||
|
|
}
|
||
|
|
|
||
|
|
int qxl_bo_check_id(struct qxl_device *qdev, struct qxl_bo *bo)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
if (bo->type == QXL_GEM_DOMAIN_SURFACE && bo->surface_id == 0) {
|
||
|
|
/* allocate a surface id for this surface now */
|
||
|
|
ret = qxl_surface_id_alloc(qdev, bo);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = qxl_hw_surface_alloc(qdev, bo, NULL);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int qxl_surf_evict(struct qxl_device *qdev)
|
||
|
|
{
|
||
|
|
return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_PRIV);
|
||
|
|
}
|
||
|
|
|
||
|
|
int qxl_vram_evict(struct qxl_device *qdev)
|
||
|
|
{
|
||
|
|
return ttm_bo_evict_mm(&qdev->mman.bdev, TTM_PL_VRAM);
|
||
|
|
}
|