* Jerome Glisse
*/
#include <linux/ktime.h>
+#include <linux/pagemap.h>
#include <drm/drmP.h>
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
return r;
}
*obj = &robj->gem_base;
- robj->pid = task_pid_nr(current);
-
- mutex_lock(&adev->gem.mutex);
- list_add_tail(&robj->list, &adev->gem.objects);
- mutex_unlock(&adev->gem.mutex);
return 0;
}
-int amdgpu_gem_init(struct amdgpu_device *adev)
+void amdgpu_gem_force_release(struct amdgpu_device *adev)
{
- INIT_LIST_HEAD(&adev->gem.objects);
- return 0;
-}
+ struct drm_device *ddev = adev->ddev;
+ struct drm_file *file;
-void amdgpu_gem_fini(struct amdgpu_device *adev)
-{
- amdgpu_bo_force_delete(adev);
+ mutex_lock(&ddev->filelist_mutex);
+
+ list_for_each_entry(file, &ddev->filelist, lhead) {
+ struct drm_gem_object *gobj;
+ int handle;
+
+ WARN_ONCE(1, "Still active user space clients!\n");
+ spin_lock(&file->table_lock);
+ idr_for_each_entry(&file->object_idr, gobj, handle) {
+ WARN_ONCE(1, "And also active allocations!\n");
+ drm_gem_object_unreference_unlocked(gobj);
+ }
+ idr_destroy(&file->object_idr);
+ spin_unlock(&file->table_lock);
+ }
+
+ mutex_unlock(&ddev->filelist_mutex);
}
/*
void amdgpu_gem_object_close(struct drm_gem_object *obj,
struct drm_file *file_priv)
{
- struct amdgpu_bo *rbo = gem_to_amdgpu_bo(obj);
- struct amdgpu_device *adev = rbo->adev;
+ struct amdgpu_bo *bo = gem_to_amdgpu_bo(obj);
+ struct amdgpu_device *adev = bo->adev;
struct amdgpu_fpriv *fpriv = file_priv->driver_priv;
struct amdgpu_vm *vm = &fpriv->vm;
+
+ struct amdgpu_bo_list_entry vm_pd;
+ struct list_head list, duplicates;
+ struct ttm_validate_buffer tv;
+ struct ww_acquire_ctx ticket;
struct amdgpu_bo_va *bo_va;
int r;
- r = amdgpu_bo_reserve(rbo, true);
+
+ INIT_LIST_HEAD(&list);
+ INIT_LIST_HEAD(&duplicates);
+
+ tv.bo = &bo->tbo;
+ tv.shared = true;
+ list_add(&tv.head, &list);
+
+ amdgpu_vm_get_pd_bo(vm, &list, &vm_pd);
+
+ r = ttm_eu_reserve_buffers(&ticket, &list, false, &duplicates);
if (r) {
dev_err(adev->dev, "leaking bo va because "
"we fail to reserve bo (%d)\n", r);
return;
}
- bo_va = amdgpu_vm_bo_find(vm, rbo);
+ bo_va = amdgpu_vm_bo_find(vm, bo);
if (bo_va) {
if (--bo_va->ref_count == 0) {
amdgpu_vm_bo_rmv(adev, bo_va);
}
}
- amdgpu_bo_unreserve(rbo);
+ ttm_eu_backoff_reservation(&ticket, &list);
}
static int amdgpu_gem_handle_lockup(struct amdgpu_device *adev, int r)
AMDGPU_GEM_USERPTR_REGISTER))
return -EINVAL;
- if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) && (
- !(args->flags & AMDGPU_GEM_USERPTR_ANONONLY) ||
- !(args->flags & AMDGPU_GEM_USERPTR_REGISTER))) {
+ if (!(args->flags & AMDGPU_GEM_USERPTR_READONLY) &&
+ !(args->flags & AMDGPU_GEM_USERPTR_REGISTER)) {
- /* if we want to write to it we must require anonymous
- memory and install a MMU notifier */
+ /* if we want to write to it we must install a MMU notifier */
return -EACCES;
}
goto handle_lockup;
bo = gem_to_amdgpu_bo(gobj);
+ bo->prefered_domains = AMDGPU_GEM_DOMAIN_GTT;
+ bo->allowed_domains = AMDGPU_GEM_DOMAIN_GTT;
r = amdgpu_ttm_tt_set_userptr(bo->tbo.ttm, args->addr, args->flags);
if (r)
goto release_object;
if (args->flags & AMDGPU_GEM_USERPTR_VALIDATE) {
down_read(¤t->mm->mmap_sem);
+
+ r = amdgpu_ttm_tt_get_user_pages(bo->tbo.ttm,
+ bo->tbo.ttm->pages);
+ if (r)
+ goto unlock_mmap_sem;
+
r = amdgpu_bo_reserve(bo, true);
- if (r) {
- up_read(¤t->mm->mmap_sem);
- goto release_object;
- }
+ if (r)
+ goto free_pages;
amdgpu_ttm_placement_from_domain(bo, AMDGPU_GEM_DOMAIN_GTT);
r = ttm_bo_validate(&bo->tbo, &bo->placement, true, false);
amdgpu_bo_unreserve(bo);
- up_read(¤t->mm->mmap_sem);
if (r)
- goto release_object;
+ goto free_pages;
+
+ up_read(¤t->mm->mmap_sem);
}
r = drm_gem_handle_create(filp, gobj, &handle);
args->handle = handle;
return 0;
+free_pages:
+ release_pages(bo->tbo.ttm->pages, bo->tbo.ttm->num_pages, false);
+
+unlock_mmap_sem:
+ up_read(¤t->mm->mmap_sem);
+
release_object:
drm_gem_object_unreference_unlocked(gobj);
return -ENOENT;
}
robj = gem_to_amdgpu_bo(gobj);
- if (amdgpu_ttm_tt_has_userptr(robj->tbo.ttm) ||
+ if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm) ||
(robj->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS)) {
drm_gem_object_unreference_unlocked(gobj);
return -EPERM;
tv.shared = true;
list_add(&tv.head, &list);
- if (args->operation == AMDGPU_VA_OP_MAP) {
- tv_pd.bo = &fpriv->vm.page_directory->tbo;
- tv_pd.shared = true;
- list_add(&tv_pd.head, &list);
- }
+ tv_pd.bo = &fpriv->vm.page_directory->tbo;
+ tv_pd.shared = true;
+ list_add(&tv_pd.head, &list);
+
r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates);
if (r) {
drm_gem_object_unreference_unlocked(gobj);
info.bo_size = robj->gem_base.size;
info.alignment = robj->tbo.mem.page_alignment << PAGE_SHIFT;
- info.domains = robj->initial_domain;
+ info.domains = robj->prefered_domains;
info.domain_flags = robj->flags;
amdgpu_bo_unreserve(robj);
if (copy_to_user(out, &info, sizeof(info)))
break;
}
case AMDGPU_GEM_OP_SET_PLACEMENT:
- if (amdgpu_ttm_tt_has_userptr(robj->tbo.ttm)) {
+ if (amdgpu_ttm_tt_get_usermm(robj->tbo.ttm)) {
r = -EPERM;
amdgpu_bo_unreserve(robj);
break;
}
- robj->initial_domain = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
- AMDGPU_GEM_DOMAIN_GTT |
- AMDGPU_GEM_DOMAIN_CPU);
+ robj->prefered_domains = args->value & (AMDGPU_GEM_DOMAIN_VRAM |
+ AMDGPU_GEM_DOMAIN_GTT |
+ AMDGPU_GEM_DOMAIN_CPU);
+ robj->allowed_domains = robj->prefered_domains;
+ if (robj->allowed_domains == AMDGPU_GEM_DOMAIN_VRAM)
+ robj->allowed_domains |= AMDGPU_GEM_DOMAIN_GTT;
+
amdgpu_bo_unreserve(robj);
break;
default:
}
#if defined(CONFIG_DEBUG_FS)
+static int amdgpu_debugfs_gem_bo_info(int id, void *ptr, void *data)
+{
+ struct drm_gem_object *gobj = ptr;
+ struct amdgpu_bo *bo = gem_to_amdgpu_bo(gobj);
+ struct seq_file *m = data;
+
+ unsigned domain;
+ const char *placement;
+ unsigned pin_count;
+
+ domain = amdgpu_mem_type_to_domain(bo->tbo.mem.mem_type);
+ switch (domain) {
+ case AMDGPU_GEM_DOMAIN_VRAM:
+ placement = "VRAM";
+ break;
+ case AMDGPU_GEM_DOMAIN_GTT:
+ placement = " GTT";
+ break;
+ case AMDGPU_GEM_DOMAIN_CPU:
+ default:
+ placement = " CPU";
+ break;
+ }
+ seq_printf(m, "\t0x%08x: %12ld byte %s @ 0x%010Lx",
+ id, amdgpu_bo_size(bo), placement,
+ amdgpu_bo_gpu_offset(bo));
+
+ pin_count = ACCESS_ONCE(bo->pin_count);
+ if (pin_count)
+ seq_printf(m, " pin count %d", pin_count);
+ seq_printf(m, "\n");
+
+ return 0;
+}
+
static int amdgpu_debugfs_gem_info(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct drm_device *dev = node->minor->dev;
- struct amdgpu_device *adev = dev->dev_private;
- struct amdgpu_bo *rbo;
- unsigned i = 0;
+ struct drm_file *file;
+ int r;
+
+ r = mutex_lock_interruptible(&dev->filelist_mutex);
+ if (r)
+ return r;
- mutex_lock(&adev->gem.mutex);
- list_for_each_entry(rbo, &adev->gem.objects, list) {
- unsigned domain;
- const char *placement;
+ list_for_each_entry(file, &dev->filelist, lhead) {
+ struct task_struct *task;
- domain = amdgpu_mem_type_to_domain(rbo->tbo.mem.mem_type);
- switch (domain) {
- case AMDGPU_GEM_DOMAIN_VRAM:
- placement = "VRAM";
- break;
- case AMDGPU_GEM_DOMAIN_GTT:
- placement = " GTT";
- break;
- case AMDGPU_GEM_DOMAIN_CPU:
- default:
- placement = " CPU";
- break;
- }
- seq_printf(m, "bo[0x%08x] %8ldkB %8ldMB %s pid %8ld\n",
- i, amdgpu_bo_size(rbo) >> 10, amdgpu_bo_size(rbo) >> 20,
- placement, (unsigned long)rbo->pid);
- i++;
+ /*
+ * Although we have a valid reference on file->pid, that does
+ * not guarantee that the task_struct who called get_pid() is
+ * still alive (e.g. get_pid(current) => fork() => exit()).
+ * Therefore, we need to protect this ->comm access using RCU.
+ */
+ rcu_read_lock();
+ task = pid_task(file->pid, PIDTYPE_PID);
+ seq_printf(m, "pid %8d command %s:\n", pid_nr(file->pid),
+ task ? task->comm : "<unknown>");
+ rcu_read_unlock();
+
+ spin_lock(&file->table_lock);
+ idr_for_each(&file->object_idr, amdgpu_debugfs_gem_bo_info, m);
+ spin_unlock(&file->table_lock);
}
- mutex_unlock(&adev->gem.mutex);
+
+ mutex_unlock(&dev->filelist_mutex);
return 0;
}
projects / cascardo / linux.git / blobdiff