#include <linux/dma-fence-array.h>
+#include <drm/drm_exec.h>
#include <drm/drm_print.h>
#include <drm/ttm/ttm_execbuf_util.h>
#include <drm/ttm/ttm_tt.h>
#include <linux/mm.h>
#include <linux/swap.h>
+#include "xe_assert.h"
#include "xe_bo.h"
#include "xe_device.h"
+#include "xe_drm_client.h"
#include "xe_exec_queue.h"
#include "xe_gt.h"
#include "xe_gt_pagefault.h"
#include "xe_res_cursor.h"
#include "xe_sync.h"
#include "xe_trace.h"
+#include "generated/xe_wa_oob.h"
+#include "xe_wa.h"
#define TEST_VM_ASYNC_OPS_ERROR
+static struct drm_gem_object *xe_vm_obj(struct xe_vm *vm)
+{
+ return vm->gpuvm.r_obj;
+}
+
/**
* xe_vma_userptr_check_repin() - Advisory check for repin needed
* @vma: The userptr vma
bool read_only = xe_vma_read_only(vma);
lockdep_assert_held(&vm->lock);
- XE_WARN_ON(!xe_vma_is_userptr(vma));
+ xe_assert(xe, xe_vma_is_userptr(vma));
retry:
if (vma->gpuva.flags & XE_VMA_DESTROYED)
return 0;
static bool preempt_fences_waiting(struct xe_vm *vm)
{
- struct xe_engine *e;
+ struct xe_exec_queue *q;
lockdep_assert_held(&vm->lock);
xe_vm_assert_held(vm);
- list_for_each_entry(e, &vm->preempt.engines, compute.link) {
- if (!e->compute.pfence || (e->compute.pfence &&
- test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
- &e->compute.pfence->flags))) {
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link) {
+ if (!q->compute.pfence ||
+ (q->compute.pfence && test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
+ &q->compute.pfence->flags))) {
return true;
}
}
lockdep_assert_held(&vm->lock);
xe_vm_assert_held(vm);
- if (*count >= vm->preempt.num_engines)
+ if (*count >= vm->preempt.num_exec_queues)
return 0;
- for (; *count < vm->preempt.num_engines; ++(*count)) {
+ for (; *count < vm->preempt.num_exec_queues; ++(*count)) {
struct xe_preempt_fence *pfence = xe_preempt_fence_alloc();
if (IS_ERR(pfence))
static int wait_for_existing_preempt_fences(struct xe_vm *vm)
{
- struct xe_engine *e;
+ struct xe_exec_queue *q;
xe_vm_assert_held(vm);
- list_for_each_entry(e, &vm->preempt.engines, compute.link) {
- if (e->compute.pfence) {
- long timeout = dma_fence_wait(e->compute.pfence, false);
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link) {
+ if (q->compute.pfence) {
+ long timeout = dma_fence_wait(q->compute.pfence, false);
if (timeout < 0)
return -ETIME;
- dma_fence_put(e->compute.pfence);
- e->compute.pfence = NULL;
+ dma_fence_put(q->compute.pfence);
+ q->compute.pfence = NULL;
}
}
static bool xe_vm_is_idle(struct xe_vm *vm)
{
- struct xe_engine *e;
+ struct xe_exec_queue *q;
xe_vm_assert_held(vm);
- list_for_each_entry(e, &vm->preempt.engines, compute.link) {
- if (!xe_engine_is_idle(e))
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link) {
+ if (!xe_exec_queue_is_idle(q))
return false;
}
static void arm_preempt_fences(struct xe_vm *vm, struct list_head *list)
{
struct list_head *link;
- struct xe_engine *e;
+ struct xe_exec_queue *q;
- list_for_each_entry(e, &vm->preempt.engines, compute.link) {
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link) {
struct dma_fence *fence;
link = list->next;
- XE_WARN_ON(link == list);
+ xe_assert(vm->xe, link != list);
fence = xe_preempt_fence_arm(to_preempt_fence_from_link(link),
- e, e->compute.context,
- ++e->compute.seqno);
- dma_fence_put(e->compute.pfence);
- e->compute.pfence = fence;
+ q, q->compute.context,
+ ++q->compute.seqno);
+ dma_fence_put(q->compute.pfence);
+ q->compute.pfence = fence;
}
}
static int add_preempt_fences(struct xe_vm *vm, struct xe_bo *bo)
{
- struct xe_engine *e;
- struct ww_acquire_ctx ww;
+ struct xe_exec_queue *q;
int err;
- err = xe_bo_lock(bo, &ww, vm->preempt.num_engines, true);
+ err = xe_bo_lock(bo, true);
if (err)
return err;
- list_for_each_entry(e, &vm->preempt.engines, compute.link)
- if (e->compute.pfence) {
+ err = dma_resv_reserve_fences(bo->ttm.base.resv, vm->preempt.num_exec_queues);
+ if (err)
+ goto out_unlock;
+
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link)
+ if (q->compute.pfence) {
dma_resv_add_fence(bo->ttm.base.resv,
- e->compute.pfence,
+ q->compute.pfence,
DMA_RESV_USAGE_BOOKKEEP);
}
- xe_bo_unlock(bo, &ww);
- return 0;
+out_unlock:
+ xe_bo_unlock(bo);
+ return err;
}
/**
static void resume_and_reinstall_preempt_fences(struct xe_vm *vm)
{
- struct xe_engine *e;
+ struct xe_exec_queue *q;
lockdep_assert_held(&vm->lock);
xe_vm_assert_held(vm);
- list_for_each_entry(e, &vm->preempt.engines, compute.link) {
- e->ops->resume(e);
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link) {
+ q->ops->resume(q);
- dma_resv_add_fence(xe_vm_resv(vm), e->compute.pfence,
+ dma_resv_add_fence(xe_vm_resv(vm), q->compute.pfence,
DMA_RESV_USAGE_BOOKKEEP);
- xe_vm_fence_all_extobjs(vm, e->compute.pfence,
+ xe_vm_fence_all_extobjs(vm, q->compute.pfence,
DMA_RESV_USAGE_BOOKKEEP);
}
}
-int xe_vm_add_compute_engine(struct xe_vm *vm, struct xe_engine *e)
+int xe_vm_add_compute_exec_queue(struct xe_vm *vm, struct xe_exec_queue *q)
{
- struct ttm_validate_buffer tv_onstack[XE_ONSTACK_TV];
- struct ttm_validate_buffer *tv;
- struct ww_acquire_ctx ww;
- struct list_head objs;
+ struct drm_exec exec;
struct dma_fence *pfence;
int err;
bool wait;
- XE_WARN_ON(!xe_vm_in_compute_mode(vm));
+ xe_assert(vm->xe, xe_vm_in_compute_mode(vm));
down_write(&vm->lock);
+ drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
+ drm_exec_until_all_locked(&exec) {
+ err = xe_vm_lock_dma_resv(vm, &exec, 1, true);
+ drm_exec_retry_on_contention(&exec);
+ if (err)
+ goto out_unlock;
+ }
- err = xe_vm_lock_dma_resv(vm, &ww, tv_onstack, &tv, &objs, true, 1);
- if (err)
- goto out_unlock_outer;
-
- pfence = xe_preempt_fence_create(e, e->compute.context,
- ++e->compute.seqno);
+ pfence = xe_preempt_fence_create(q, q->compute.context,
+ ++q->compute.seqno);
if (!pfence) {
err = -ENOMEM;
goto out_unlock;
}
- list_add(&e->compute.link, &vm->preempt.engines);
- ++vm->preempt.num_engines;
- e->compute.pfence = pfence;
+ list_add(&q->compute.link, &vm->preempt.exec_queues);
+ ++vm->preempt.num_exec_queues;
+ q->compute.pfence = pfence;
down_read(&vm->userptr.notifier_lock);
up_read(&vm->userptr.notifier_lock);
out_unlock:
- xe_vm_unlock_dma_resv(vm, tv_onstack, tv, &ww, &objs);
-out_unlock_outer:
+ drm_exec_fini(&exec);
up_write(&vm->lock);
return err;
}
+/**
+ * xe_vm_remove_compute_exec_queue() - Remove compute exec queue from VM
+ * @vm: The VM.
+ * @q: The exec_queue
+ */
+void xe_vm_remove_compute_exec_queue(struct xe_vm *vm, struct xe_exec_queue *q)
+{
+ if (!xe_vm_in_compute_mode(vm))
+ return;
+
+ down_write(&vm->lock);
+ list_del(&q->compute.link);
+ --vm->preempt.num_exec_queues;
+ if (q->compute.pfence) {
+ dma_fence_enable_sw_signaling(q->compute.pfence);
+ dma_fence_put(q->compute.pfence);
+ q->compute.pfence = NULL;
+ }
+ up_write(&vm->lock);
+}
+
/**
* __xe_vm_userptr_needs_repin() - Check whether the VM does have userptrs
* that need repinning.
* xe_vm_lock_dma_resv() - Lock the vm dma_resv object and the dma_resv
* objects of the vm's external buffer objects.
* @vm: The vm.
- * @ww: Pointer to a struct ww_acquire_ctx locking context.
- * @tv_onstack: Array size XE_ONSTACK_TV of storage for the struct
- * ttm_validate_buffers used for locking.
- * @tv: Pointer to a pointer that on output contains the actual storage used.
- * @objs: List head for the buffer objects locked.
- * @intr: Whether to lock interruptible.
+ * @exec: Pointer to a struct drm_exec locking context.
* @num_shared: Number of dma-fence slots to reserve in the locked objects.
+ * @lock_vm: Lock also the vm's dma_resv.
*
* Locks the vm dma-resv objects and all the dma-resv objects of the
- * buffer objects on the vm external object list. The TTM utilities require
- * a list of struct ttm_validate_buffers pointing to the actual buffer
- * objects to lock. Storage for those struct ttm_validate_buffers should
- * be provided in @tv_onstack, and is typically reserved on the stack
- * of the caller. If the size of @tv_onstack isn't sufficient, then
- * storage will be allocated internally using kvmalloc().
- *
- * The function performs deadlock handling internally, and after a
- * successful return the ww locking transaction should be considered
- * sealed.
+ * buffer objects on the vm external object list.
*
* Return: 0 on success, Negative error code on error. In particular if
- * @intr is set to true, -EINTR or -ERESTARTSYS may be returned. In case
- * of error, any locking performed has been reverted.
+ * @intr is set to true, -EINTR or -ERESTARTSYS may be returned.
*/
-int xe_vm_lock_dma_resv(struct xe_vm *vm, struct ww_acquire_ctx *ww,
- struct ttm_validate_buffer *tv_onstack,
- struct ttm_validate_buffer **tv,
- struct list_head *objs,
- bool intr,
- unsigned int num_shared)
-{
- struct ttm_validate_buffer *tv_vm, *tv_bo;
+int xe_vm_lock_dma_resv(struct xe_vm *vm, struct drm_exec *exec,
+ unsigned int num_shared, bool lock_vm)
+{
struct xe_vma *vma, *next;
- LIST_HEAD(dups);
- int err;
+ int err = 0;
lockdep_assert_held(&vm->lock);
- if (vm->extobj.entries < XE_ONSTACK_TV) {
- tv_vm = tv_onstack;
- } else {
- tv_vm = kvmalloc_array(vm->extobj.entries + 1, sizeof(*tv_vm),
- GFP_KERNEL);
- if (!tv_vm)
- return -ENOMEM;
+ if (lock_vm) {
+ err = drm_exec_prepare_obj(exec, xe_vm_obj(vm), num_shared);
+ if (err)
+ return err;
}
- tv_bo = tv_vm + 1;
- INIT_LIST_HEAD(objs);
list_for_each_entry(vma, &vm->extobj.list, extobj.link) {
- tv_bo->num_shared = num_shared;
- tv_bo->bo = &xe_vma_bo(vma)->ttm;
-
- list_add_tail(&tv_bo->head, objs);
- tv_bo++;
+ err = drm_exec_prepare_obj(exec, &xe_vma_bo(vma)->ttm.base, num_shared);
+ if (err)
+ return err;
}
- tv_vm->num_shared = num_shared;
- tv_vm->bo = xe_vm_ttm_bo(vm);
- list_add_tail(&tv_vm->head, objs);
- err = ttm_eu_reserve_buffers(ww, objs, intr, &dups);
- if (err)
- goto out_err;
spin_lock(&vm->notifier.list_lock);
list_for_each_entry_safe(vma, next, &vm->notifier.rebind_list,
}
spin_unlock(&vm->notifier.list_lock);
- *tv = tv_vm;
return 0;
+}
-out_err:
- if (tv_vm != tv_onstack)
- kvfree(tv_vm);
+#define XE_VM_REBIND_RETRY_TIMEOUT_MS 1000
- return err;
+static void xe_vm_kill(struct xe_vm *vm)
+{
+ struct xe_exec_queue *q;
+
+ lockdep_assert_held(&vm->lock);
+
+ xe_vm_lock(vm, false);
+ vm->flags |= XE_VM_FLAG_BANNED;
+ trace_xe_vm_kill(vm);
+
+ list_for_each_entry(q, &vm->preempt.exec_queues, compute.link)
+ q->ops->kill(q);
+ xe_vm_unlock(vm);
+
+ /* TODO: Inform user the VM is banned */
}
/**
- * xe_vm_unlock_dma_resv() - Unlock reservation objects locked by
- * xe_vm_lock_dma_resv()
- * @vm: The vm.
- * @tv_onstack: The @tv_onstack array given to xe_vm_lock_dma_resv().
- * @tv: The value of *@tv given by xe_vm_lock_dma_resv().
- * @ww: The ww_acquire_context used for locking.
- * @objs: The list returned from xe_vm_lock_dma_resv().
+ * xe_vm_validate_should_retry() - Whether to retry after a validate error.
+ * @exec: The drm_exec object used for locking before validation.
+ * @err: The error returned from ttm_bo_validate().
+ * @end: A ktime_t cookie that should be set to 0 before first use and
+ * that should be reused on subsequent calls.
+ *
+ * With multiple active VMs, under memory pressure, it is possible that
+ * ttm_bo_validate() run into -EDEADLK and in such case returns -ENOMEM.
+ * Until ttm properly handles locking in such scenarios, best thing the
+ * driver can do is retry with a timeout. Check if that is necessary, and
+ * if so unlock the drm_exec's objects while keeping the ticket to prepare
+ * for a rerun.
*
- * Unlocks the reservation objects and frees any memory allocated by
- * xe_vm_lock_dma_resv().
+ * Return: true if a retry after drm_exec_init() is recommended;
+ * false otherwise.
*/
-void xe_vm_unlock_dma_resv(struct xe_vm *vm,
- struct ttm_validate_buffer *tv_onstack,
- struct ttm_validate_buffer *tv,
- struct ww_acquire_ctx *ww,
- struct list_head *objs)
+bool xe_vm_validate_should_retry(struct drm_exec *exec, int err, ktime_t *end)
{
+ ktime_t cur;
+
+ if (err != -ENOMEM)
+ return false;
+
+ cur = ktime_get();
+ *end = *end ? : ktime_add_ms(cur, XE_VM_REBIND_RETRY_TIMEOUT_MS);
+ if (!ktime_before(cur, *end))
+ return false;
+
/*
- * Nothing should've been able to enter the list while we were locked,
- * since we've held the dma-resvs of all the vm's external objects,
- * and holding the dma_resv of an object is required for list
- * addition, and we shouldn't add ourselves.
+ * We would like to keep the ticket here with
+ * drm_exec_unlock_all(), but WW mutex asserts currently
+ * stop us from that. In any case this function could go away
+ * with proper TTM -EDEADLK handling.
*/
- XE_WARN_ON(!list_empty(&vm->notifier.rebind_list));
+ drm_exec_fini(exec);
- ttm_eu_backoff_reservation(ww, objs);
- if (tv && tv != tv_onstack)
- kvfree(tv);
+ msleep(20);
+ return true;
}
-#define XE_VM_REBIND_RETRY_TIMEOUT_MS 1000
-
-static void xe_vm_kill(struct xe_vm *vm)
+static int xe_preempt_work_begin(struct drm_exec *exec, struct xe_vm *vm,
+ bool *done)
{
- struct ww_acquire_ctx ww;
- struct xe_engine *e;
+ struct xe_vma *vma;
+ int err;
- lockdep_assert_held(&vm->lock);
+ /*
+ * 1 fence for each preempt fence plus a fence for each tile from a
+ * possible rebind
+ */
+ err = drm_exec_prepare_obj(exec, xe_vm_obj(vm),
+ vm->preempt.num_exec_queues +
+ vm->xe->info.tile_count);
+ if (err)
+ return err;
- xe_vm_lock(vm, &ww, 0, false);
- vm->flags |= XE_VM_FLAG_BANNED;
- trace_xe_vm_kill(vm);
+ if (xe_vm_is_idle(vm)) {
+ vm->preempt.rebind_deactivated = true;
+ *done = true;
+ return 0;
+ }
+
+ if (!preempt_fences_waiting(vm)) {
+ *done = true;
+ return 0;
+ }
- list_for_each_entry(e, &vm->preempt.engines, compute.link)
- e->ops->kill(e);
- xe_vm_unlock(vm, &ww);
+ err = xe_vm_lock_dma_resv(vm, exec, vm->preempt.num_exec_queues, false);
+ if (err)
+ return err;
- /* TODO: Inform user the VM is banned */
+ err = wait_for_existing_preempt_fences(vm);
+ if (err)
+ return err;
+
+ list_for_each_entry(vma, &vm->rebind_list, combined_links.rebind) {
+ if (xe_vma_has_no_bo(vma) ||
+ vma->gpuva.flags & XE_VMA_DESTROYED)
+ continue;
+
+ err = xe_bo_validate(xe_vma_bo(vma), vm, false);
+ if (err)
+ break;
+ }
+
+ return err;
}
static void preempt_rebind_work_func(struct work_struct *w)
{
struct xe_vm *vm = container_of(w, struct xe_vm, preempt.rebind_work);
- struct xe_vma *vma;
- struct ttm_validate_buffer tv_onstack[XE_ONSTACK_TV];
- struct ttm_validate_buffer *tv;
- struct ww_acquire_ctx ww;
- struct list_head objs;
+ struct drm_exec exec;
struct dma_fence *rebind_fence;
unsigned int fence_count = 0;
LIST_HEAD(preempt_fences);
ktime_t end = 0;
- int err;
+ int err = 0;
long wait;
int __maybe_unused tries = 0;
- XE_WARN_ON(!xe_vm_in_compute_mode(vm));
+ xe_assert(vm->xe, xe_vm_in_compute_mode(vm));
trace_xe_vm_rebind_worker_enter(vm);
down_write(&vm->lock);
}
retry:
- if (vm->async_ops.error)
- goto out_unlock_outer;
-
- /*
- * Extreme corner where we exit a VM error state with a munmap style VM
- * unbind inflight which requires a rebind. In this case the rebind
- * needs to install some fences into the dma-resv slots. The worker to
- * do this queued, let that worker make progress by dropping vm->lock
- * and trying this again.
- */
- if (vm->async_ops.munmap_rebind_inflight) {
- up_write(&vm->lock);
- flush_work(&vm->async_ops.work);
- goto retry;
- }
-
if (xe_vm_userptr_check_repin(vm)) {
err = xe_vm_userptr_pin(vm);
if (err)
goto out_unlock_outer;
}
- err = xe_vm_lock_dma_resv(vm, &ww, tv_onstack, &tv, &objs,
- false, vm->preempt.num_engines);
- if (err)
- goto out_unlock_outer;
-
- if (xe_vm_is_idle(vm)) {
- vm->preempt.rebind_deactivated = true;
- goto out_unlock;
- }
+ drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
- /* Fresh preempt fences already installed. Everyting is running. */
- if (!preempt_fences_waiting(vm))
- goto out_unlock;
+ drm_exec_until_all_locked(&exec) {
+ bool done = false;
- /*
- * This makes sure vm is completely suspended and also balances
- * xe_engine suspend- and resume; we resume *all* vm engines below.
- */
- err = wait_for_existing_preempt_fences(vm);
- if (err)
- goto out_unlock;
+ err = xe_preempt_work_begin(&exec, vm, &done);
+ drm_exec_retry_on_contention(&exec);
+ if (err && xe_vm_validate_should_retry(&exec, err, &end)) {
+ err = -EAGAIN;
+ goto out_unlock_outer;
+ }
+ if (err || done)
+ goto out_unlock;
+ }
err = alloc_preempt_fences(vm, &preempt_fences, &fence_count);
if (err)
goto out_unlock;
- list_for_each_entry(vma, &vm->rebind_list, combined_links.rebind) {
- if (xe_vma_has_no_bo(vma) ||
- vma->gpuva.flags & XE_VMA_DESTROYED)
- continue;
-
- err = xe_bo_validate(xe_vma_bo(vma), vm, false);
- if (err)
- goto out_unlock;
- }
-
rebind_fence = xe_vm_rebind(vm, true);
if (IS_ERR(rebind_fence)) {
err = PTR_ERR(rebind_fence);
up_read(&vm->userptr.notifier_lock);
out_unlock:
- xe_vm_unlock_dma_resv(vm, tv_onstack, tv, &ww, &objs);
+ drm_exec_fini(&exec);
out_unlock_outer:
if (err == -EAGAIN) {
trace_xe_vm_rebind_worker_retry(vm);
goto retry;
}
- /*
- * With multiple active VMs, under memory pressure, it is possible that
- * ttm_bo_validate() run into -EDEADLK and in such case returns -ENOMEM.
- * Until ttm properly handles locking in such scenarios, best thing the
- * driver can do is retry with a timeout. Killing the VM or putting it
- * in error state after timeout or other error scenarios is still TBD.
- */
- if (err == -ENOMEM) {
- ktime_t cur = ktime_get();
-
- end = end ? : ktime_add_ms(cur, XE_VM_REBIND_RETRY_TIMEOUT_MS);
- if (ktime_before(cur, end)) {
- msleep(20);
- trace_xe_vm_rebind_worker_retry(vm);
- goto retry;
- }
- }
if (err) {
drm_warn(&vm->xe->drm, "VM worker error: %d\n", err);
xe_vm_kill(vm);
struct dma_fence *fence;
long err;
- XE_WARN_ON(!xe_vma_is_userptr(vma));
+ xe_assert(vm->xe, xe_vma_is_userptr(vma));
trace_xe_vma_userptr_invalidate(vma);
if (!mmu_notifier_range_blockable(range))
}
static struct dma_fence *
-xe_vm_bind_vma(struct xe_vma *vma, struct xe_engine *e,
+xe_vm_bind_vma(struct xe_vma *vma, struct xe_exec_queue *q,
struct xe_sync_entry *syncs, u32 num_syncs,
bool first_op, bool last_op);
xe_vm_assert_held(vm);
list_for_each_entry_safe(vma, next, &vm->rebind_list,
combined_links.rebind) {
- XE_WARN_ON(!vma->tile_present);
+ xe_assert(vm->xe, vma->tile_present);
list_del_init(&vma->combined_links.rebind);
dma_fence_put(fence);
struct xe_tile *tile;
u8 id;
- XE_WARN_ON(start >= end);
- XE_WARN_ON(end >= vm->size);
+ xe_assert(vm->xe, start < end);
+ xe_assert(vm->xe, end < vm->size);
if (!bo && !is_null) /* userptr */
vma = kzalloc(sizeof(*vma), GFP_KERNEL);
vma->tile_mask |= 0x1 << id;
}
- if (vm->xe->info.platform == XE_PVC)
+ if (GRAPHICS_VER(vm->xe) >= 20 || vm->xe->info.platform == XE_PVC)
vma->gpuva.flags |= XE_VMA_ATOMIC_PTE_BIT;
if (bo) {
static bool bo_has_vm_references(struct xe_bo *bo, struct xe_vm *vm,
struct xe_vma *ignore)
{
- struct ww_acquire_ctx ww;
bool ret;
- xe_bo_lock(bo, &ww, 0, false);
+ xe_bo_lock(bo, false);
ret = !!bo_has_vm_references_locked(bo, vm, ignore);
- xe_bo_unlock(bo, &ww);
+ xe_bo_unlock(bo);
return ret;
}
struct xe_vm *vm = xe_vma_vm(vma);
lockdep_assert_held_write(&vm->lock);
- XE_WARN_ON(!list_empty(&vma->combined_links.destroy));
+ xe_assert(vm->xe, list_empty(&vma->combined_links.destroy));
if (xe_vma_is_userptr(vma)) {
- XE_WARN_ON(!(vma->gpuva.flags & XE_VMA_DESTROYED));
+ xe_assert(vm->xe, vma->gpuva.flags & XE_VMA_DESTROYED);
spin_lock(&vm->userptr.invalidated_lock);
list_del(&vma->userptr.invalidate_link);
}
}
-static void xe_vma_destroy_unlocked(struct xe_vma *vma)
+/**
+ * xe_vm_prepare_vma() - drm_exec utility to lock a vma
+ * @exec: The drm_exec object we're currently locking for.
+ * @vma: The vma for witch we want to lock the vm resv and any attached
+ * object's resv.
+ * @num_shared: The number of dma-fence slots to pre-allocate in the
+ * objects' reservation objects.
+ *
+ * Return: 0 on success, negative error code on error. In particular
+ * may return -EDEADLK on WW transaction contention and -EINTR if
+ * an interruptible wait is terminated by a signal.
+ */
+int xe_vm_prepare_vma(struct drm_exec *exec, struct xe_vma *vma,
+ unsigned int num_shared)
{
- struct ttm_validate_buffer tv[2];
- struct ww_acquire_ctx ww;
+ struct xe_vm *vm = xe_vma_vm(vma);
struct xe_bo *bo = xe_vma_bo(vma);
- LIST_HEAD(objs);
- LIST_HEAD(dups);
int err;
- memset(tv, 0, sizeof(tv));
- tv[0].bo = xe_vm_ttm_bo(xe_vma_vm(vma));
- list_add(&tv[0].head, &objs);
+ XE_WARN_ON(!vm);
+ err = drm_exec_prepare_obj(exec, xe_vm_obj(vm), num_shared);
+ if (!err && bo && !bo->vm)
+ err = drm_exec_prepare_obj(exec, &bo->ttm.base, num_shared);
- if (bo) {
- tv[1].bo = &xe_bo_get(bo)->ttm;
- list_add(&tv[1].head, &objs);
+ return err;
+}
+
+static void xe_vma_destroy_unlocked(struct xe_vma *vma)
+{
+ struct drm_exec exec;
+ int err;
+
+ drm_exec_init(&exec, 0);
+ drm_exec_until_all_locked(&exec) {
+ err = xe_vm_prepare_vma(&exec, vma, 0);
+ drm_exec_retry_on_contention(&exec);
+ if (XE_WARN_ON(err))
+ break;
}
- err = ttm_eu_reserve_buffers(&ww, &objs, false, &dups);
- XE_WARN_ON(err);
xe_vma_destroy(vma, NULL);
- ttm_eu_backoff_reservation(&ww, &objs);
- if (bo)
- xe_bo_put(bo);
+ drm_exec_fini(&exec);
}
struct xe_vma *
if (xe_vm_is_closed_or_banned(vm))
return NULL;
- XE_WARN_ON(start + range > vm->size);
+ xe_assert(vm->xe, start + range <= vm->size);
gpuva = drm_gpuva_find_first(&vm->gpuvm, start, range);
{
int err;
- XE_WARN_ON(xe_vma_vm(vma) != vm);
+ xe_assert(vm->xe, xe_vma_vm(vma) == vm);
lockdep_assert_held(&vm->lock);
err = drm_gpuva_insert(&vm->gpuvm, &vma->gpuva);
static void xe_vm_remove_vma(struct xe_vm *vm, struct xe_vma *vma)
{
- XE_WARN_ON(xe_vma_vm(vma) != vm);
+ xe_assert(vm->xe, xe_vma_vm(vma) == vm);
lockdep_assert_held(&vm->lock);
drm_gpuva_remove(&vma->gpuva);
.vm_free = xe_vm_free,
};
-static void xe_vma_op_work_func(struct work_struct *w);
+static u64 pde_encode_pat_index(struct xe_device *xe, u16 pat_index)
+{
+ u64 pte = 0;
+
+ if (pat_index & BIT(0))
+ pte |= XE_PPGTT_PTE_PAT0;
+
+ if (pat_index & BIT(1))
+ pte |= XE_PPGTT_PTE_PAT1;
+
+ return pte;
+}
+
+static u64 pte_encode_pat_index(struct xe_device *xe, u16 pat_index,
+ u32 pt_level)
+{
+ u64 pte = 0;
+
+ if (pat_index & BIT(0))
+ pte |= XE_PPGTT_PTE_PAT0;
+
+ if (pat_index & BIT(1))
+ pte |= XE_PPGTT_PTE_PAT1;
+
+ if (pat_index & BIT(2)) {
+ if (pt_level)
+ pte |= XE_PPGTT_PDE_PDPE_PAT2;
+ else
+ pte |= XE_PPGTT_PTE_PAT2;
+ }
+
+ if (pat_index & BIT(3))
+ pte |= XELPG_PPGTT_PTE_PAT3;
+
+ if (pat_index & (BIT(4)))
+ pte |= XE2_PPGTT_PTE_PAT4;
+
+ return pte;
+}
+
+static u64 pte_encode_ps(u32 pt_level)
+{
+ XE_WARN_ON(pt_level > 2);
+
+ if (pt_level == 1)
+ return XE_PDE_PS_2M;
+ else if (pt_level == 2)
+ return XE_PDPE_PS_1G;
+
+ return 0;
+}
+
+static u64 xelp_pde_encode_bo(struct xe_bo *bo, u64 bo_offset,
+ const u16 pat_index)
+{
+ struct xe_device *xe = xe_bo_device(bo);
+ u64 pde;
+
+ pde = xe_bo_addr(bo, bo_offset, XE_PAGE_SIZE);
+ pde |= XE_PAGE_PRESENT | XE_PAGE_RW;
+ pde |= pde_encode_pat_index(xe, pat_index);
+
+ return pde;
+}
+
+static u64 xelp_pte_encode_bo(struct xe_bo *bo, u64 bo_offset,
+ u16 pat_index, u32 pt_level)
+{
+ struct xe_device *xe = xe_bo_device(bo);
+ u64 pte;
+
+ pte = xe_bo_addr(bo, bo_offset, XE_PAGE_SIZE);
+ pte |= XE_PAGE_PRESENT | XE_PAGE_RW;
+ pte |= pte_encode_pat_index(xe, pat_index, pt_level);
+ pte |= pte_encode_ps(pt_level);
+
+ if (xe_bo_is_vram(bo) || xe_bo_is_stolen_devmem(bo))
+ pte |= XE_PPGTT_PTE_DM;
+
+ return pte;
+}
+
+static u64 xelp_pte_encode_vma(u64 pte, struct xe_vma *vma,
+ u16 pat_index, u32 pt_level)
+{
+ struct xe_device *xe = xe_vma_vm(vma)->xe;
+
+ pte |= XE_PAGE_PRESENT;
+
+ if (likely(!xe_vma_read_only(vma)))
+ pte |= XE_PAGE_RW;
+
+ pte |= pte_encode_pat_index(xe, pat_index, pt_level);
+ pte |= pte_encode_ps(pt_level);
+
+ if (unlikely(xe_vma_is_null(vma)))
+ pte |= XE_PTE_NULL;
+
+ return pte;
+}
+
+static u64 xelp_pte_encode_addr(struct xe_device *xe, u64 addr,
+ u16 pat_index,
+ u32 pt_level, bool devmem, u64 flags)
+{
+ u64 pte;
+
+ /* Avoid passing random bits directly as flags */
+ xe_assert(xe, !(flags & ~XE_PTE_PS64));
+
+ pte = addr;
+ pte |= XE_PAGE_PRESENT | XE_PAGE_RW;
+ pte |= pte_encode_pat_index(xe, pat_index, pt_level);
+ pte |= pte_encode_ps(pt_level);
+
+ if (devmem)
+ pte |= XE_PPGTT_PTE_DM;
+
+ pte |= flags;
+
+ return pte;
+}
+
+static const struct xe_pt_ops xelp_pt_ops = {
+ .pte_encode_bo = xelp_pte_encode_bo,
+ .pte_encode_vma = xelp_pte_encode_vma,
+ .pte_encode_addr = xelp_pte_encode_addr,
+ .pde_encode_bo = xelp_pde_encode_bo,
+};
+
static void vm_destroy_work_func(struct work_struct *w);
struct xe_vm *xe_vm_create(struct xe_device *xe, u32 flags)
vm->xe = xe;
- vm->size = 1ull << xe_pt_shift(xe->info.vm_max_level + 1);
+ vm->size = 1ull << xe->info.va_bits;
vm->flags = flags;
INIT_LIST_HEAD(&vm->notifier.rebind_list);
spin_lock_init(&vm->notifier.list_lock);
- INIT_LIST_HEAD(&vm->async_ops.pending);
- INIT_WORK(&vm->async_ops.work, xe_vma_op_work_func);
- spin_lock_init(&vm->async_ops.lock);
-
INIT_WORK(&vm->destroy_work, vm_destroy_work_func);
- INIT_LIST_HEAD(&vm->preempt.engines);
+ INIT_LIST_HEAD(&vm->preempt.exec_queues);
vm->preempt.min_run_period_ms = 10; /* FIXME: Wire up to uAPI */
for_each_tile(tile, xe, id)
INIT_LIST_HEAD(&vm->extobj.list);
+ vm->pt_ops = &xelp_pt_ops;
+
if (!(flags & XE_VM_FLAG_MIGRATION))
xe_device_mem_access_get(xe);
vm->batch_invalidate_tlb = false;
}
- if (flags & XE_VM_FLAG_ASYNC_BIND_OPS) {
- vm->async_ops.fence.context = dma_fence_context_alloc(1);
- vm->flags |= XE_VM_FLAG_ASYNC_BIND_OPS;
- }
-
/* Fill pt_root after allocating scratch tables */
for_each_tile(tile, xe, id) {
if (!vm->pt_root[id])
for_each_tile(tile, xe, id) {
struct xe_gt *gt = tile->primary_gt;
struct xe_vm *migrate_vm;
- struct xe_engine *eng;
+ struct xe_exec_queue *q;
+ u32 create_flags = EXEC_QUEUE_FLAG_VM |
+ ((flags & XE_VM_FLAG_ASYNC_DEFAULT) ?
+ EXEC_QUEUE_FLAG_VM_ASYNC : 0);
if (!vm->pt_root[id])
continue;
migrate_vm = xe_migrate_get_vm(tile->migrate);
- eng = xe_engine_create_class(xe, gt, migrate_vm,
- XE_ENGINE_CLASS_COPY,
- ENGINE_FLAG_VM);
+ q = xe_exec_queue_create_class(xe, gt, migrate_vm,
+ XE_ENGINE_CLASS_COPY,
+ create_flags);
xe_vm_put(migrate_vm);
- if (IS_ERR(eng)) {
- err = PTR_ERR(eng);
+ if (IS_ERR(q)) {
+ err = PTR_ERR(q);
goto err_close;
}
- vm->eng[id] = eng;
+ vm->q[id] = q;
number_tiles++;
}
}
return ERR_PTR(err);
}
-static void flush_async_ops(struct xe_vm *vm)
-{
- queue_work(system_unbound_wq, &vm->async_ops.work);
- flush_work(&vm->async_ops.work);
-}
-
-static void vm_error_capture(struct xe_vm *vm, int err,
- u32 op, u64 addr, u64 size)
-{
- struct drm_xe_vm_bind_op_error_capture capture;
- u64 __user *address =
- u64_to_user_ptr(vm->async_ops.error_capture.addr);
- bool in_kthread = !current->mm;
-
- capture.error = err;
- capture.op = op;
- capture.addr = addr;
- capture.size = size;
-
- if (in_kthread) {
- if (!mmget_not_zero(vm->async_ops.error_capture.mm))
- goto mm_closed;
- kthread_use_mm(vm->async_ops.error_capture.mm);
- }
-
- if (copy_to_user(address, &capture, sizeof(capture)))
- XE_WARN_ON("Copy to user failed");
-
- if (in_kthread) {
- kthread_unuse_mm(vm->async_ops.error_capture.mm);
- mmput(vm->async_ops.error_capture.mm);
- }
-
-mm_closed:
- wake_up_all(&vm->async_ops.error_capture.wq);
-}
-
static void xe_vm_close(struct xe_vm *vm)
{
down_write(&vm->lock);
void xe_vm_close_and_put(struct xe_vm *vm)
{
LIST_HEAD(contested);
- struct ww_acquire_ctx ww;
struct xe_device *xe = vm->xe;
struct xe_tile *tile;
struct xe_vma *vma, *next_vma;
struct drm_gpuva *gpuva, *next;
u8 id;
- XE_WARN_ON(vm->preempt.num_engines);
+ xe_assert(xe, !vm->preempt.num_exec_queues);
xe_vm_close(vm);
- flush_async_ops(vm);
if (xe_vm_in_compute_mode(vm))
flush_work(&vm->preempt.rebind_work);
+ down_write(&vm->lock);
+ for_each_tile(tile, xe, id) {
+ if (vm->q[id])
+ xe_exec_queue_last_fence_put(vm->q[id], vm);
+ }
+ up_write(&vm->lock);
+
for_each_tile(tile, xe, id) {
- if (vm->eng[id]) {
- xe_engine_kill(vm->eng[id]);
- xe_engine_put(vm->eng[id]);
- vm->eng[id] = NULL;
+ if (vm->q[id]) {
+ xe_exec_queue_kill(vm->q[id]);
+ xe_exec_queue_put(vm->q[id]);
+ vm->q[id] = NULL;
}
}
down_write(&vm->lock);
- xe_vm_lock(vm, &ww, 0, false);
+ xe_vm_lock(vm, false);
drm_gpuvm_for_each_va_safe(gpuva, next, &vm->gpuvm) {
vma = gpuva_to_vma(gpuva);
}
list_move_tail(&vma->combined_links.destroy, &contested);
+ vma->gpuva.flags |= XE_VMA_DESTROYED;
}
/*
vm->pt_root[id] = NULL;
}
}
- xe_vm_unlock(vm, &ww);
+ xe_vm_unlock(vm);
/*
* VM is now dead, cannot re-add nodes to vm->vmas if it's NULL
xe_vma_destroy_unlocked(vma);
}
- if (vm->async_ops.error_capture.addr)
- wake_up_all(&vm->async_ops.error_capture.wq);
-
- XE_WARN_ON(!list_empty(&vm->extobj.list));
+ xe_assert(xe, list_empty(&vm->extobj.list));
up_write(&vm->lock);
mutex_lock(&xe->usm.lock);
void *lookup;
/* xe_vm_close_and_put was not called? */
- XE_WARN_ON(vm->size);
+ xe_assert(xe, !vm->size);
if (!(vm->flags & XE_VM_FLAG_MIGRATION)) {
xe_device_mem_access_put(xe);
if (xe->info.has_asid) {
mutex_lock(&xe->usm.lock);
lookup = xa_erase(&xe->usm.asid_to_vm, vm->usm.asid);
- XE_WARN_ON(lookup != vm);
+ xe_assert(xe, lookup == vm);
mutex_unlock(&xe->usm.lock);
}
}
u64 xe_vm_pdp4_descriptor(struct xe_vm *vm, struct xe_tile *tile)
{
- return xe_pde_encode(vm->pt_root[tile->id]->bo, 0,
- XE_CACHE_WB);
+ return vm->pt_ops->pde_encode_bo(vm->pt_root[tile->id]->bo, 0,
+ tile_to_xe(tile)->pat.idx[XE_CACHE_WB]);
+}
+
+static struct xe_exec_queue *
+to_wait_exec_queue(struct xe_vm *vm, struct xe_exec_queue *q)
+{
+ return q ? q : vm->q[0];
}
static struct dma_fence *
-xe_vm_unbind_vma(struct xe_vma *vma, struct xe_engine *e,
+xe_vm_unbind_vma(struct xe_vma *vma, struct xe_exec_queue *q,
struct xe_sync_entry *syncs, u32 num_syncs,
bool first_op, bool last_op)
{
+ struct xe_vm *vm = xe_vma_vm(vma);
+ struct xe_exec_queue *wait_exec_queue = to_wait_exec_queue(vm, q);
struct xe_tile *tile;
struct dma_fence *fence = NULL;
struct dma_fence **fences = NULL;
struct dma_fence_array *cf = NULL;
- struct xe_vm *vm = xe_vma_vm(vma);
int cur_fence = 0, i;
int number_tiles = hweight8(vma->tile_present);
int err;
if (!(vma->tile_present & BIT(id)))
goto next;
- fence = __xe_pt_unbind_vma(tile, vma, e, first_op ? syncs : NULL,
+ fence = __xe_pt_unbind_vma(tile, vma, q ? q : vm->q[id],
+ first_op ? syncs : NULL,
first_op ? num_syncs : 0);
if (IS_ERR(fence)) {
err = PTR_ERR(fence);
fences[cur_fence++] = fence;
next:
- if (e && vm->pt_root[id] && !list_empty(&e->multi_gt_list))
- e = list_next_entry(e, multi_gt_list);
+ if (q && vm->pt_root[id] && !list_empty(&q->multi_gt_list))
+ q = list_next_entry(q, multi_gt_list);
}
if (fences) {
}
}
+ fence = cf ? &cf->base : !fence ?
+ xe_exec_queue_last_fence_get(wait_exec_queue, vm) : fence;
if (last_op) {
for (i = 0; i < num_syncs; i++)
- xe_sync_entry_signal(&syncs[i], NULL,
- cf ? &cf->base : fence);
+ xe_sync_entry_signal(&syncs[i], NULL, fence);
}
- return cf ? &cf->base : !fence ? dma_fence_get_stub() : fence;
+ return fence;
err_fences:
if (fences) {
- while (cur_fence) {
- /* FIXME: Rewind the previous binds? */
+ while (cur_fence)
dma_fence_put(fences[--cur_fence]);
- }
kfree(fences);
}
}
static struct dma_fence *
-xe_vm_bind_vma(struct xe_vma *vma, struct xe_engine *e,
+xe_vm_bind_vma(struct xe_vma *vma, struct xe_exec_queue *q,
struct xe_sync_entry *syncs, u32 num_syncs,
bool first_op, bool last_op)
{
if (!(vma->tile_mask & BIT(id)))
goto next;
- fence = __xe_pt_bind_vma(tile, vma, e ? e : vm->eng[id],
+ fence = __xe_pt_bind_vma(tile, vma, q ? q : vm->q[id],
first_op ? syncs : NULL,
first_op ? num_syncs : 0,
vma->tile_present & BIT(id));
fences[cur_fence++] = fence;
next:
- if (e && vm->pt_root[id] && !list_empty(&e->multi_gt_list))
- e = list_next_entry(e, multi_gt_list);
+ if (q && vm->pt_root[id] && !list_empty(&q->multi_gt_list))
+ q = list_next_entry(q, multi_gt_list);
}
if (fences) {
err_fences:
if (fences) {
- while (cur_fence) {
- /* FIXME: Rewind the previous binds? */
+ while (cur_fence)
dma_fence_put(fences[--cur_fence]);
- }
kfree(fences);
}
return ERR_PTR(err);
}
-struct async_op_fence {
- struct dma_fence fence;
- struct dma_fence *wait_fence;
- struct dma_fence_cb cb;
- struct xe_vm *vm;
- wait_queue_head_t wq;
- bool started;
-};
-
-static const char *async_op_fence_get_driver_name(struct dma_fence *dma_fence)
+static bool xe_vm_sync_mode(struct xe_vm *vm, struct xe_exec_queue *q)
{
- return "xe";
+ return q ? !(q->flags & EXEC_QUEUE_FLAG_VM_ASYNC) :
+ !(vm->flags & XE_VM_FLAG_ASYNC_DEFAULT);
}
-static const char *
-async_op_fence_get_timeline_name(struct dma_fence *dma_fence)
+static int __xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma,
+ struct xe_exec_queue *q, struct xe_sync_entry *syncs,
+ u32 num_syncs, bool immediate, bool first_op,
+ bool last_op)
{
- return "async_op_fence";
-}
+ struct dma_fence *fence;
+ struct xe_exec_queue *wait_exec_queue = to_wait_exec_queue(vm, q);
-static const struct dma_fence_ops async_op_fence_ops = {
- .get_driver_name = async_op_fence_get_driver_name,
- .get_timeline_name = async_op_fence_get_timeline_name,
-};
-
-static void async_op_fence_cb(struct dma_fence *fence, struct dma_fence_cb *cb)
-{
- struct async_op_fence *afence =
- container_of(cb, struct async_op_fence, cb);
-
- afence->fence.error = afence->wait_fence->error;
- dma_fence_signal(&afence->fence);
- xe_vm_put(afence->vm);
- dma_fence_put(afence->wait_fence);
- dma_fence_put(&afence->fence);
-}
-
-static void add_async_op_fence_cb(struct xe_vm *vm,
- struct dma_fence *fence,
- struct async_op_fence *afence)
-{
- int ret;
-
- if (!xe_vm_no_dma_fences(vm)) {
- afence->started = true;
- smp_wmb();
- wake_up_all(&afence->wq);
- }
-
- afence->wait_fence = dma_fence_get(fence);
- afence->vm = xe_vm_get(vm);
- dma_fence_get(&afence->fence);
- ret = dma_fence_add_callback(fence, &afence->cb, async_op_fence_cb);
- if (ret == -ENOENT) {
- afence->fence.error = afence->wait_fence->error;
- dma_fence_signal(&afence->fence);
- }
- if (ret) {
- xe_vm_put(vm);
- dma_fence_put(afence->wait_fence);
- dma_fence_put(&afence->fence);
- }
- XE_WARN_ON(ret && ret != -ENOENT);
-}
-
-int xe_vm_async_fence_wait_start(struct dma_fence *fence)
-{
- if (fence->ops == &async_op_fence_ops) {
- struct async_op_fence *afence =
- container_of(fence, struct async_op_fence, fence);
-
- XE_WARN_ON(xe_vm_no_dma_fences(afence->vm));
-
- smp_rmb();
- return wait_event_interruptible(afence->wq, afence->started);
- }
-
- return 0;
-}
-
-static int __xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma,
- struct xe_engine *e, struct xe_sync_entry *syncs,
- u32 num_syncs, struct async_op_fence *afence,
- bool immediate, bool first_op, bool last_op)
-{
- struct dma_fence *fence;
-
- xe_vm_assert_held(vm);
+ xe_vm_assert_held(vm);
if (immediate) {
- fence = xe_vm_bind_vma(vma, e, syncs, num_syncs, first_op,
+ fence = xe_vm_bind_vma(vma, q, syncs, num_syncs, first_op,
last_op);
if (IS_ERR(fence))
return PTR_ERR(fence);
} else {
int i;
- XE_WARN_ON(!xe_vm_in_fault_mode(vm));
+ xe_assert(vm->xe, xe_vm_in_fault_mode(vm));
- fence = dma_fence_get_stub();
+ fence = xe_exec_queue_last_fence_get(wait_exec_queue, vm);
if (last_op) {
for (i = 0; i < num_syncs; i++)
xe_sync_entry_signal(&syncs[i], NULL, fence);
}
}
- if (afence)
- add_async_op_fence_cb(vm, fence, afence);
+ if (last_op)
+ xe_exec_queue_last_fence_set(wait_exec_queue, vm, fence);
+ if (last_op && xe_vm_sync_mode(vm, q))
+ dma_fence_wait(fence, true);
dma_fence_put(fence);
+
return 0;
}
-static int xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma, struct xe_engine *e,
+static int xe_vm_bind(struct xe_vm *vm, struct xe_vma *vma, struct xe_exec_queue *q,
struct xe_bo *bo, struct xe_sync_entry *syncs,
- u32 num_syncs, struct async_op_fence *afence,
- bool immediate, bool first_op, bool last_op)
+ u32 num_syncs, bool immediate, bool first_op,
+ bool last_op)
{
int err;
return err;
}
- return __xe_vm_bind(vm, vma, e, syncs, num_syncs, afence, immediate,
- first_op, last_op);
+ return __xe_vm_bind(vm, vma, q, syncs, num_syncs, immediate, first_op,
+ last_op);
}
static int xe_vm_unbind(struct xe_vm *vm, struct xe_vma *vma,
- struct xe_engine *e, struct xe_sync_entry *syncs,
- u32 num_syncs, struct async_op_fence *afence,
- bool first_op, bool last_op)
+ struct xe_exec_queue *q, struct xe_sync_entry *syncs,
+ u32 num_syncs, bool first_op, bool last_op)
{
struct dma_fence *fence;
+ struct xe_exec_queue *wait_exec_queue = to_wait_exec_queue(vm, q);
xe_vm_assert_held(vm);
xe_bo_assert_held(xe_vma_bo(vma));
- fence = xe_vm_unbind_vma(vma, e, syncs, num_syncs, first_op, last_op);
+ fence = xe_vm_unbind_vma(vma, q, syncs, num_syncs, first_op, last_op);
if (IS_ERR(fence))
return PTR_ERR(fence);
- if (afence)
- add_async_op_fence_cb(vm, fence, afence);
xe_vma_destroy(vma, fence);
+ if (last_op)
+ xe_exec_queue_last_fence_set(wait_exec_queue, vm, fence);
+ if (last_op && xe_vm_sync_mode(vm, q))
+ dma_fence_wait(fence, true);
dma_fence_put(fence);
return 0;
}
-static int vm_set_error_capture_address(struct xe_device *xe, struct xe_vm *vm,
- u64 value)
-{
- if (XE_IOCTL_DBG(xe, !value))
- return -EINVAL;
-
- if (XE_IOCTL_DBG(xe, !(vm->flags & XE_VM_FLAG_ASYNC_BIND_OPS)))
- return -EOPNOTSUPP;
-
- if (XE_IOCTL_DBG(xe, vm->async_ops.error_capture.addr))
- return -EOPNOTSUPP;
-
- vm->async_ops.error_capture.mm = current->mm;
- vm->async_ops.error_capture.addr = value;
- init_waitqueue_head(&vm->async_ops.error_capture.wq);
-
- return 0;
-}
-
-typedef int (*xe_vm_set_property_fn)(struct xe_device *xe, struct xe_vm *vm,
- u64 value);
-
-static const xe_vm_set_property_fn vm_set_property_funcs[] = {
- [XE_VM_PROPERTY_BIND_OP_ERROR_CAPTURE_ADDRESS] =
- vm_set_error_capture_address,
-};
-
-static int vm_user_ext_set_property(struct xe_device *xe, struct xe_vm *vm,
- u64 extension)
-{
- u64 __user *address = u64_to_user_ptr(extension);
- struct drm_xe_ext_vm_set_property ext;
- int err;
-
- err = __copy_from_user(&ext, address, sizeof(ext));
- if (XE_IOCTL_DBG(xe, err))
- return -EFAULT;
-
- if (XE_IOCTL_DBG(xe, ext.property >=
- ARRAY_SIZE(vm_set_property_funcs)) ||
- XE_IOCTL_DBG(xe, ext.pad) ||
- XE_IOCTL_DBG(xe, ext.reserved[0] || ext.reserved[1]))
- return -EINVAL;
-
- return vm_set_property_funcs[ext.property](xe, vm, ext.value);
-}
-
-typedef int (*xe_vm_user_extension_fn)(struct xe_device *xe, struct xe_vm *vm,
- u64 extension);
-
-static const xe_vm_set_property_fn vm_user_extension_funcs[] = {
- [XE_VM_EXTENSION_SET_PROPERTY] = vm_user_ext_set_property,
-};
-
-#define MAX_USER_EXTENSIONS 16
-static int vm_user_extensions(struct xe_device *xe, struct xe_vm *vm,
- u64 extensions, int ext_number)
-{
- u64 __user *address = u64_to_user_ptr(extensions);
- struct xe_user_extension ext;
- int err;
-
- if (XE_IOCTL_DBG(xe, ext_number >= MAX_USER_EXTENSIONS))
- return -E2BIG;
-
- err = __copy_from_user(&ext, address, sizeof(ext));
- if (XE_IOCTL_DBG(xe, err))
- return -EFAULT;
-
- if (XE_IOCTL_DBG(xe, ext.pad) ||
- XE_IOCTL_DBG(xe, ext.name >=
- ARRAY_SIZE(vm_user_extension_funcs)))
- return -EINVAL;
-
- err = vm_user_extension_funcs[ext.name](xe, vm, extensions);
- if (XE_IOCTL_DBG(xe, err))
- return err;
-
- if (ext.next_extension)
- return vm_user_extensions(xe, vm, ext.next_extension,
- ++ext_number);
-
- return 0;
-}
-
-#define ALL_DRM_XE_VM_CREATE_FLAGS (DRM_XE_VM_CREATE_SCRATCH_PAGE | \
- DRM_XE_VM_CREATE_COMPUTE_MODE | \
- DRM_XE_VM_CREATE_ASYNC_BIND_OPS | \
- DRM_XE_VM_CREATE_FAULT_MODE)
+#define ALL_DRM_XE_VM_CREATE_FLAGS (DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE | \
+ DRM_XE_VM_CREATE_FLAG_COMPUTE_MODE | \
+ DRM_XE_VM_CREATE_FLAG_ASYNC_DEFAULT | \
+ DRM_XE_VM_CREATE_FLAG_FAULT_MODE)
int xe_vm_create_ioctl(struct drm_device *dev, void *data,
struct drm_file *file)
struct xe_device *xe = to_xe_device(dev);
struct xe_file *xef = to_xe_file(file);
struct drm_xe_vm_create *args = data;
+ struct xe_tile *tile;
struct xe_vm *vm;
u32 id, asid;
int err;
u32 flags = 0;
+ if (XE_IOCTL_DBG(xe, args->extensions))
+ return -EINVAL;
+
+ if (XE_WA(xe_root_mmio_gt(xe), 14016763929))
+ args->flags |= DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE;
+
+ if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE &&
+ !xe->info.supports_usm))
+ return -EINVAL;
+
if (XE_IOCTL_DBG(xe, args->reserved[0] || args->reserved[1]))
return -EINVAL;
if (XE_IOCTL_DBG(xe, args->flags & ~ALL_DRM_XE_VM_CREATE_FLAGS))
return -EINVAL;
- if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_SCRATCH_PAGE &&
- args->flags & DRM_XE_VM_CREATE_FAULT_MODE))
+ if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE &&
+ args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE))
return -EINVAL;
- if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_COMPUTE_MODE &&
- args->flags & DRM_XE_VM_CREATE_FAULT_MODE))
+ if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FLAG_COMPUTE_MODE &&
+ args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE))
return -EINVAL;
- if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FAULT_MODE &&
+ if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE &&
xe_device_in_non_fault_mode(xe)))
return -EINVAL;
- if (XE_IOCTL_DBG(xe, !(args->flags & DRM_XE_VM_CREATE_FAULT_MODE) &&
+ if (XE_IOCTL_DBG(xe, !(args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE) &&
xe_device_in_fault_mode(xe)))
return -EINVAL;
- if (XE_IOCTL_DBG(xe, args->flags & DRM_XE_VM_CREATE_FAULT_MODE &&
- !xe->info.supports_usm))
+ if (XE_IOCTL_DBG(xe, args->extensions))
return -EINVAL;
- if (args->flags & DRM_XE_VM_CREATE_SCRATCH_PAGE)
+ if (args->flags & DRM_XE_VM_CREATE_FLAG_SCRATCH_PAGE)
flags |= XE_VM_FLAG_SCRATCH_PAGE;
- if (args->flags & DRM_XE_VM_CREATE_COMPUTE_MODE)
+ if (args->flags & DRM_XE_VM_CREATE_FLAG_COMPUTE_MODE)
flags |= XE_VM_FLAG_COMPUTE_MODE;
- if (args->flags & DRM_XE_VM_CREATE_ASYNC_BIND_OPS)
- flags |= XE_VM_FLAG_ASYNC_BIND_OPS;
- if (args->flags & DRM_XE_VM_CREATE_FAULT_MODE)
+ if (args->flags & DRM_XE_VM_CREATE_FLAG_ASYNC_DEFAULT)
+ flags |= XE_VM_FLAG_ASYNC_DEFAULT;
+ if (args->flags & DRM_XE_VM_CREATE_FLAG_FAULT_MODE)
flags |= XE_VM_FLAG_FAULT_MODE;
vm = xe_vm_create(xe, flags);
if (IS_ERR(vm))
return PTR_ERR(vm);
- if (args->extensions) {
- err = vm_user_extensions(xe, vm, args->extensions, 0);
- if (XE_IOCTL_DBG(xe, err)) {
- xe_vm_close_and_put(vm);
- return err;
- }
- }
-
mutex_lock(&xef->vm.lock);
err = xa_alloc(&xef->vm.xa, &id, vm, xa_limit_32b, GFP_KERNEL);
mutex_unlock(&xef->vm.lock);
if (xe->info.has_asid) {
mutex_lock(&xe->usm.lock);
err = xa_alloc_cyclic(&xe->usm.asid_to_vm, &asid, vm,
- XA_LIMIT(0, XE_MAX_ASID - 1),
+ XA_LIMIT(1, XE_MAX_ASID - 1),
&xe->usm.next_asid, GFP_KERNEL);
mutex_unlock(&xe->usm.lock);
- if (err) {
+ if (err < 0) {
xe_vm_close_and_put(vm);
return err;
}
+ err = 0;
vm->usm.asid = asid;
}
args->vm_id = id;
+ vm->xef = xef;
+
+ /* Record BO memory for VM pagetable created against client */
+ for_each_tile(tile, xe, id)
+ if (vm->pt_root[id])
+ xe_drm_client_add_bo(vm->xef->client, vm->pt_root[id]->bo);
#if IS_ENABLED(CONFIG_DRM_XE_DEBUG_MEM)
/* Warning: Security issue - never enable by default */
vm = xa_load(&xef->vm.xa, args->vm_id);
if (XE_IOCTL_DBG(xe, !vm))
err = -ENOENT;
- else if (XE_IOCTL_DBG(xe, vm->preempt.num_engines))
+ else if (XE_IOCTL_DBG(xe, vm->preempt.num_exec_queues))
err = -EBUSY;
else
xa_erase(&xef->vm.xa, args->vm_id);
};
static int xe_vm_prefetch(struct xe_vm *vm, struct xe_vma *vma,
- struct xe_engine *e, u32 region,
+ struct xe_exec_queue *q, u32 region,
struct xe_sync_entry *syncs, u32 num_syncs,
- struct async_op_fence *afence, bool first_op,
- bool last_op)
+ bool first_op, bool last_op)
{
+ struct xe_exec_queue *wait_exec_queue = to_wait_exec_queue(vm, q);
int err;
- XE_WARN_ON(region > ARRAY_SIZE(region_to_mem_type));
+ xe_assert(vm->xe, region <= ARRAY_SIZE(region_to_mem_type));
if (!xe_vma_has_no_bo(vma)) {
err = xe_bo_migrate(xe_vma_bo(vma), region_to_mem_type[region]);
}
if (vma->tile_mask != (vma->tile_present & ~vma->usm.tile_invalidated)) {
- return xe_vm_bind(vm, vma, e, xe_vma_bo(vma), syncs, num_syncs,
- afence, true, first_op, last_op);
+ return xe_vm_bind(vm, vma, q, xe_vma_bo(vma), syncs, num_syncs,
+ true, first_op, last_op);
} else {
int i;
/* Nothing to do, signal fences now */
if (last_op) {
- for (i = 0; i < num_syncs; i++)
- xe_sync_entry_signal(&syncs[i], NULL,
- dma_fence_get_stub());
- }
- if (afence)
- dma_fence_signal(&afence->fence);
- return 0;
- }
-}
-
-#define VM_BIND_OP(op) (op & 0xffff)
-
-struct ttm_buffer_object *xe_vm_ttm_bo(struct xe_vm *vm)
-{
- int idx = vm->flags & XE_VM_FLAG_MIGRATION ?
- XE_VM_FLAG_TILE_ID(vm->flags) : 0;
-
- /* Safe to use index 0 as all BO in the VM share a single dma-resv lock */
- return &vm->pt_root[idx]->bo->ttm;
-}
-
-static void xe_vm_tv_populate(struct xe_vm *vm, struct ttm_validate_buffer *tv)
-{
- tv->num_shared = 1;
- tv->bo = xe_vm_ttm_bo(vm);
-}
-
-static void vm_set_async_error(struct xe_vm *vm, int err)
-{
- lockdep_assert_held(&vm->lock);
- vm->async_ops.error = err;
-}
-
-static int vm_bind_ioctl_lookup_vma(struct xe_vm *vm, struct xe_bo *bo,
- u64 addr, u64 range, u32 op)
-{
- struct xe_device *xe = vm->xe;
- struct xe_vma *vma;
- bool async = !!(op & XE_VM_BIND_FLAG_ASYNC);
+ for (i = 0; i < num_syncs; i++) {
+ struct dma_fence *fence =
+ xe_exec_queue_last_fence_get(wait_exec_queue, vm);
- lockdep_assert_held(&vm->lock);
+ xe_sync_entry_signal(&syncs[i], NULL, fence);
+ }
+ }
- switch (VM_BIND_OP(op)) {
- case XE_VM_BIND_OP_MAP:
- case XE_VM_BIND_OP_MAP_USERPTR:
- vma = xe_vm_find_overlapping_vma(vm, addr, range);
- if (XE_IOCTL_DBG(xe, vma && !async))
- return -EBUSY;
- break;
- case XE_VM_BIND_OP_UNMAP:
- case XE_VM_BIND_OP_PREFETCH:
- vma = xe_vm_find_overlapping_vma(vm, addr, range);
- if (XE_IOCTL_DBG(xe, !vma))
- /* Not an actual error, IOCTL cleans up returns and 0 */
- return -ENODATA;
- if (XE_IOCTL_DBG(xe, (xe_vma_start(vma) != addr ||
- xe_vma_end(vma) != addr + range) && !async))
- return -EINVAL;
- break;
- case XE_VM_BIND_OP_UNMAP_ALL:
- if (XE_IOCTL_DBG(xe, list_empty(&bo->ttm.base.gpuva.list)))
- /* Not an actual error, IOCTL cleans up returns and 0 */
- return -ENODATA;
- break;
- default:
- XE_WARN_ON("NOT POSSIBLE");
- return -EINVAL;
+ return 0;
}
-
- return 0;
}
static void prep_vma_destroy(struct xe_vm *vm, struct xe_vma *vma,
vma = gpuva_to_vma(op->remap.unmap->va);
vm_dbg(&xe->drm, "REMAP:UNMAP: addr=0x%016llx, range=0x%016llx, keep=%d",
(ULL)xe_vma_start(vma), (ULL)xe_vma_size(vma),
- op->unmap.keep ? 1 : 0);
+ op->remap.unmap->keep ? 1 : 0);
if (op->remap.prev)
vm_dbg(&xe->drm,
"REMAP:PREV: addr=0x%016llx, range=0x%016llx",
(ULL)xe_vma_start(vma), (ULL)xe_vma_size(vma));
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&xe->drm, "NOT POSSIBLE");
}
}
#else
static struct drm_gpuva_ops *
vm_bind_ioctl_ops_create(struct xe_vm *vm, struct xe_bo *bo,
u64 bo_offset_or_userptr, u64 addr, u64 range,
- u32 operation, u8 tile_mask, u32 region)
+ u32 operation, u32 flags, u8 tile_mask,
+ u32 prefetch_region)
{
struct drm_gem_object *obj = bo ? &bo->ttm.base : NULL;
- struct ww_acquire_ctx ww;
struct drm_gpuva_ops *ops;
struct drm_gpuva_op *__op;
struct xe_vma_op *op;
vm_dbg(&vm->xe->drm,
"op=%d, addr=0x%016llx, range=0x%016llx, bo_offset_or_userptr=0x%016llx",
- VM_BIND_OP(operation), (ULL)addr, (ULL)range,
+ operation, (ULL)addr, (ULL)range,
(ULL)bo_offset_or_userptr);
- switch (VM_BIND_OP(operation)) {
- case XE_VM_BIND_OP_MAP:
- case XE_VM_BIND_OP_MAP_USERPTR:
+ switch (operation) {
+ case DRM_XE_VM_BIND_OP_MAP:
+ case DRM_XE_VM_BIND_OP_MAP_USERPTR:
ops = drm_gpuvm_sm_map_ops_create(&vm->gpuvm, addr, range,
obj, bo_offset_or_userptr);
- if (IS_ERR(ops))
- return ops;
-
- drm_gpuva_for_each_op(__op, ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
-
- op->tile_mask = tile_mask;
- op->map.immediate =
- operation & XE_VM_BIND_FLAG_IMMEDIATE;
- op->map.read_only =
- operation & XE_VM_BIND_FLAG_READONLY;
- op->map.is_null = operation & XE_VM_BIND_FLAG_NULL;
- }
break;
- case XE_VM_BIND_OP_UNMAP:
+ case DRM_XE_VM_BIND_OP_UNMAP:
ops = drm_gpuvm_sm_unmap_ops_create(&vm->gpuvm, addr, range);
- if (IS_ERR(ops))
- return ops;
-
- drm_gpuva_for_each_op(__op, ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
-
- op->tile_mask = tile_mask;
- }
break;
- case XE_VM_BIND_OP_PREFETCH:
+ case DRM_XE_VM_BIND_OP_PREFETCH:
ops = drm_gpuvm_prefetch_ops_create(&vm->gpuvm, addr, range);
- if (IS_ERR(ops))
- return ops;
-
- drm_gpuva_for_each_op(__op, ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
-
- op->tile_mask = tile_mask;
- op->prefetch.region = region;
- }
break;
- case XE_VM_BIND_OP_UNMAP_ALL:
- XE_WARN_ON(!bo);
+ case DRM_XE_VM_BIND_OP_UNMAP_ALL:
+ xe_assert(vm->xe, bo);
- err = xe_bo_lock(bo, &ww, 0, true);
+ err = xe_bo_lock(bo, true);
if (err)
return ERR_PTR(err);
ops = drm_gpuvm_bo_unmap_ops_create(vm_bo);
drm_gpuvm_bo_put(vm_bo);
- xe_bo_unlock(bo, &ww);
- if (IS_ERR(ops))
- return ops;
-
- drm_gpuva_for_each_op(__op, ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
-
- op->tile_mask = tile_mask;
- }
+ xe_bo_unlock(bo);
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
ops = ERR_PTR(-EINVAL);
}
+ if (IS_ERR(ops))
+ return ops;
#ifdef TEST_VM_ASYNC_OPS_ERROR
if (operation & FORCE_ASYNC_OP_ERROR) {
}
#endif
- if (!IS_ERR(ops))
- drm_gpuva_for_each_op(__op, ops)
- print_op(vm->xe, __op);
+ drm_gpuva_for_each_op(__op, ops) {
+ struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
+
+ op->tile_mask = tile_mask;
+ if (__op->op == DRM_GPUVA_OP_MAP) {
+ op->map.immediate =
+ flags & DRM_XE_VM_BIND_FLAG_IMMEDIATE;
+ op->map.read_only =
+ flags & DRM_XE_VM_BIND_FLAG_READONLY;
+ op->map.is_null = flags & DRM_XE_VM_BIND_FLAG_NULL;
+ } else if (__op->op == DRM_GPUVA_OP_PREFETCH) {
+ op->prefetch.region = prefetch_region;
+ }
+
+ print_op(vm->xe, __op);
+ }
return ops;
}
{
struct xe_bo *bo = op->gem.obj ? gem_to_xe_bo(op->gem.obj) : NULL;
struct xe_vma *vma;
- struct ww_acquire_ctx ww;
int err;
lockdep_assert_held_write(&vm->lock);
if (bo) {
- err = xe_bo_lock(bo, &ww, 0, true);
+ err = xe_bo_lock(bo, true);
if (err)
return ERR_PTR(err);
}
op->va.range - 1, read_only, is_null,
tile_mask);
if (bo)
- xe_bo_unlock(bo, &ww);
+ xe_bo_unlock(bo);
if (xe_vma_is_userptr(vma)) {
err = xe_vma_userptr_pin_pages(vma);
return SZ_4K;
}
-/*
- * Parse operations list and create any resources needed for the operations
- * prior to fully committing to the operations. This setup can fail.
- */
-static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_engine *e,
- struct drm_gpuva_ops **ops, int num_ops_list,
- struct xe_sync_entry *syncs, u32 num_syncs,
- struct list_head *ops_list, bool async)
+static u64 xe_vma_set_pte_size(struct xe_vma *vma, u64 size)
{
- struct xe_vma_op *last_op = NULL;
- struct list_head *async_list = NULL;
- struct async_op_fence *fence = NULL;
- int err, i;
-
- lockdep_assert_held_write(&vm->lock);
- XE_WARN_ON(num_ops_list > 1 && !async);
-
- if (num_syncs && async) {
- u64 seqno;
-
- fence = kmalloc(sizeof(*fence), GFP_KERNEL);
- if (!fence)
- return -ENOMEM;
-
- seqno = e ? ++e->bind.fence_seqno : ++vm->async_ops.fence.seqno;
- dma_fence_init(&fence->fence, &async_op_fence_ops,
- &vm->async_ops.lock, e ? e->bind.fence_ctx :
- vm->async_ops.fence.context, seqno);
-
- if (!xe_vm_no_dma_fences(vm)) {
- fence->vm = vm;
- fence->started = false;
- init_waitqueue_head(&fence->wq);
- }
- }
-
- for (i = 0; i < num_ops_list; ++i) {
- struct drm_gpuva_ops *__ops = ops[i];
- struct drm_gpuva_op *__op;
-
- drm_gpuva_for_each_op(__op, __ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
- bool first = !async_list;
-
- XE_WARN_ON(!first && !async);
-
- INIT_LIST_HEAD(&op->link);
- if (first)
- async_list = ops_list;
- list_add_tail(&op->link, async_list);
-
- if (first) {
- op->flags |= XE_VMA_OP_FIRST;
- op->num_syncs = num_syncs;
- op->syncs = syncs;
- }
-
- op->engine = e;
-
- switch (op->base.op) {
- case DRM_GPUVA_OP_MAP:
- {
- struct xe_vma *vma;
-
- vma = new_vma(vm, &op->base.map,
- op->tile_mask, op->map.read_only,
- op->map.is_null);
- if (IS_ERR(vma)) {
- err = PTR_ERR(vma);
- goto free_fence;
- }
-
- op->map.vma = vma;
- break;
- }
- case DRM_GPUVA_OP_REMAP:
- {
- struct xe_vma *old =
- gpuva_to_vma(op->base.remap.unmap->va);
-
- op->remap.start = xe_vma_start(old);
- op->remap.range = xe_vma_size(old);
-
- if (op->base.remap.prev) {
- struct xe_vma *vma;
- bool read_only =
- op->base.remap.unmap->va->flags &
- XE_VMA_READ_ONLY;
- bool is_null =
- op->base.remap.unmap->va->flags &
- DRM_GPUVA_SPARSE;
-
- vma = new_vma(vm, op->base.remap.prev,
- op->tile_mask, read_only,
- is_null);
- if (IS_ERR(vma)) {
- err = PTR_ERR(vma);
- goto free_fence;
- }
-
- op->remap.prev = vma;
-
- /*
- * Userptr creates a new SG mapping so
- * we must also rebind.
- */
- op->remap.skip_prev = !xe_vma_is_userptr(old) &&
- IS_ALIGNED(xe_vma_end(vma),
- xe_vma_max_pte_size(old));
- if (op->remap.skip_prev) {
- op->remap.range -=
- xe_vma_end(vma) -
- xe_vma_start(old);
- op->remap.start = xe_vma_end(vma);
- }
- }
-
- if (op->base.remap.next) {
- struct xe_vma *vma;
- bool read_only =
- op->base.remap.unmap->va->flags &
- XE_VMA_READ_ONLY;
-
- bool is_null =
- op->base.remap.unmap->va->flags &
- DRM_GPUVA_SPARSE;
-
- vma = new_vma(vm, op->base.remap.next,
- op->tile_mask, read_only,
- is_null);
- if (IS_ERR(vma)) {
- err = PTR_ERR(vma);
- goto free_fence;
- }
-
- op->remap.next = vma;
-
- /*
- * Userptr creates a new SG mapping so
- * we must also rebind.
- */
- op->remap.skip_next = !xe_vma_is_userptr(old) &&
- IS_ALIGNED(xe_vma_start(vma),
- xe_vma_max_pte_size(old));
- if (op->remap.skip_next)
- op->remap.range -=
- xe_vma_end(old) -
- xe_vma_start(vma);
- }
- break;
- }
- case DRM_GPUVA_OP_UNMAP:
- case DRM_GPUVA_OP_PREFETCH:
- /* Nothing to do */
- break;
- default:
- XE_WARN_ON("NOT POSSIBLE");
- }
-
- last_op = op;
- }
-
- last_op->ops = __ops;
+ switch (size) {
+ case SZ_1G:
+ vma->gpuva.flags |= XE_VMA_PTE_1G;
+ break;
+ case SZ_2M:
+ vma->gpuva.flags |= XE_VMA_PTE_2M;
+ break;
}
- if (!last_op)
- return -ENODATA;
-
- last_op->flags |= XE_VMA_OP_LAST;
- last_op->num_syncs = num_syncs;
- last_op->syncs = syncs;
- last_op->fence = fence;
-
- return 0;
-
-free_fence:
- kfree(fence);
- return err;
+ return SZ_4K;
}
static int xe_vma_op_commit(struct xe_vm *vm, struct xe_vma_op *op)
switch (op->base.op) {
case DRM_GPUVA_OP_MAP:
err |= xe_vm_insert_vma(vm, op->map.vma);
+ if (!err)
+ op->flags |= XE_VMA_OP_COMMITTED;
break;
case DRM_GPUVA_OP_REMAP:
+ {
+ u8 tile_present =
+ gpuva_to_vma(op->base.remap.unmap->va)->tile_present;
+
prep_vma_destroy(vm, gpuva_to_vma(op->base.remap.unmap->va),
true);
+ op->flags |= XE_VMA_OP_COMMITTED;
if (op->remap.prev) {
err |= xe_vm_insert_vma(vm, op->remap.prev);
- if (!err && op->remap.skip_prev)
+ if (!err)
+ op->flags |= XE_VMA_OP_PREV_COMMITTED;
+ if (!err && op->remap.skip_prev) {
+ op->remap.prev->tile_present =
+ tile_present;
op->remap.prev = NULL;
+ }
}
if (op->remap.next) {
err |= xe_vm_insert_vma(vm, op->remap.next);
- if (!err && op->remap.skip_next)
+ if (!err)
+ op->flags |= XE_VMA_OP_NEXT_COMMITTED;
+ if (!err && op->remap.skip_next) {
+ op->remap.next->tile_present =
+ tile_present;
op->remap.next = NULL;
+ }
}
/* Adjust for partial unbind after removin VMA from VM */
op->base.remap.unmap->va->va.range = op->remap.range;
}
break;
+ }
case DRM_GPUVA_OP_UNMAP:
prep_vma_destroy(vm, gpuva_to_vma(op->base.unmap.va), true);
+ op->flags |= XE_VMA_OP_COMMITTED;
break;
case DRM_GPUVA_OP_PREFETCH:
- /* Nothing to do */
+ op->flags |= XE_VMA_OP_COMMITTED;
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
}
- op->flags |= XE_VMA_OP_COMMITTED;
return err;
}
-static int __xe_vma_op_execute(struct xe_vm *vm, struct xe_vma *vma,
- struct xe_vma_op *op)
+
+static int vm_bind_ioctl_ops_parse(struct xe_vm *vm, struct xe_exec_queue *q,
+ struct drm_gpuva_ops *ops,
+ struct xe_sync_entry *syncs, u32 num_syncs,
+ struct list_head *ops_list, bool last,
+ bool async)
{
- LIST_HEAD(objs);
- LIST_HEAD(dups);
- struct ttm_validate_buffer tv_bo, tv_vm;
- struct ww_acquire_ctx ww;
- struct xe_bo *vbo;
- int err;
+ struct xe_vma_op *last_op = NULL;
+ struct drm_gpuva_op *__op;
+ int err = 0;
lockdep_assert_held_write(&vm->lock);
- xe_vm_tv_populate(vm, &tv_vm);
- list_add_tail(&tv_vm.head, &objs);
- vbo = xe_vma_bo(vma);
- if (vbo) {
- /*
- * An unbind can drop the last reference to the BO and
- * the BO is needed for ttm_eu_backoff_reservation so
- * take a reference here.
- */
- xe_bo_get(vbo);
+ drm_gpuva_for_each_op(__op, ops) {
+ struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
+ bool first = list_empty(ops_list);
+
+ INIT_LIST_HEAD(&op->link);
+ list_add_tail(&op->link, ops_list);
+
+ if (first) {
+ op->flags |= XE_VMA_OP_FIRST;
+ op->num_syncs = num_syncs;
+ op->syncs = syncs;
+ }
+
+ op->q = q;
+
+ switch (op->base.op) {
+ case DRM_GPUVA_OP_MAP:
+ {
+ struct xe_vma *vma;
+
+ vma = new_vma(vm, &op->base.map,
+ op->tile_mask, op->map.read_only,
+ op->map.is_null);
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
+
+ op->map.vma = vma;
+ break;
+ }
+ case DRM_GPUVA_OP_REMAP:
+ {
+ struct xe_vma *old =
+ gpuva_to_vma(op->base.remap.unmap->va);
+
+ op->remap.start = xe_vma_start(old);
+ op->remap.range = xe_vma_size(old);
+
+ if (op->base.remap.prev) {
+ struct xe_vma *vma;
+ bool read_only =
+ op->base.remap.unmap->va->flags &
+ XE_VMA_READ_ONLY;
+ bool is_null =
+ op->base.remap.unmap->va->flags &
+ DRM_GPUVA_SPARSE;
+
+ vma = new_vma(vm, op->base.remap.prev,
+ op->tile_mask, read_only,
+ is_null);
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
+
+ op->remap.prev = vma;
+
+ /*
+ * Userptr creates a new SG mapping so
+ * we must also rebind.
+ */
+ op->remap.skip_prev = !xe_vma_is_userptr(old) &&
+ IS_ALIGNED(xe_vma_end(vma),
+ xe_vma_max_pte_size(old));
+ if (op->remap.skip_prev) {
+ xe_vma_set_pte_size(vma, xe_vma_max_pte_size(old));
+ op->remap.range -=
+ xe_vma_end(vma) -
+ xe_vma_start(old);
+ op->remap.start = xe_vma_end(vma);
+ }
+ }
- if (!vbo->vm) {
- tv_bo.bo = &vbo->ttm;
- tv_bo.num_shared = 1;
- list_add(&tv_bo.head, &objs);
+ if (op->base.remap.next) {
+ struct xe_vma *vma;
+ bool read_only =
+ op->base.remap.unmap->va->flags &
+ XE_VMA_READ_ONLY;
+
+ bool is_null =
+ op->base.remap.unmap->va->flags &
+ DRM_GPUVA_SPARSE;
+
+ vma = new_vma(vm, op->base.remap.next,
+ op->tile_mask, read_only,
+ is_null);
+ if (IS_ERR(vma))
+ return PTR_ERR(vma);
+
+ op->remap.next = vma;
+
+ /*
+ * Userptr creates a new SG mapping so
+ * we must also rebind.
+ */
+ op->remap.skip_next = !xe_vma_is_userptr(old) &&
+ IS_ALIGNED(xe_vma_start(vma),
+ xe_vma_max_pte_size(old));
+ if (op->remap.skip_next) {
+ xe_vma_set_pte_size(vma, xe_vma_max_pte_size(old));
+ op->remap.range -=
+ xe_vma_end(old) -
+ xe_vma_start(vma);
+ }
+ }
+ break;
}
+ case DRM_GPUVA_OP_UNMAP:
+ case DRM_GPUVA_OP_PREFETCH:
+ /* Nothing to do */
+ break;
+ default:
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
+ }
+
+ last_op = op;
+
+ err = xe_vma_op_commit(vm, op);
+ if (err)
+ return err;
}
-again:
- err = ttm_eu_reserve_buffers(&ww, &objs, true, &dups);
- if (err) {
- xe_bo_put(vbo);
- return err;
+ /* FIXME: Unhandled corner case */
+ XE_WARN_ON(!last_op && last && !list_empty(ops_list));
+
+ if (!last_op)
+ return 0;
+
+ last_op->ops = ops;
+ if (last) {
+ last_op->flags |= XE_VMA_OP_LAST;
+ last_op->num_syncs = num_syncs;
+ last_op->syncs = syncs;
}
+ return 0;
+}
+
+static int op_execute(struct drm_exec *exec, struct xe_vm *vm,
+ struct xe_vma *vma, struct xe_vma_op *op)
+{
+ int err;
+
+ lockdep_assert_held_write(&vm->lock);
+
+ err = xe_vm_prepare_vma(exec, vma, 1);
+ if (err)
+ return err;
+
xe_vm_assert_held(vm);
xe_bo_assert_held(xe_vma_bo(vma));
switch (op->base.op) {
case DRM_GPUVA_OP_MAP:
- err = xe_vm_bind(vm, vma, op->engine, xe_vma_bo(vma),
- op->syncs, op->num_syncs, op->fence,
+ err = xe_vm_bind(vm, vma, op->q, xe_vma_bo(vma),
+ op->syncs, op->num_syncs,
op->map.immediate || !xe_vm_in_fault_mode(vm),
op->flags & XE_VMA_OP_FIRST,
op->flags & XE_VMA_OP_LAST);
bool next = !!op->remap.next;
if (!op->remap.unmap_done) {
- if (prev || next) {
- vm->async_ops.munmap_rebind_inflight = true;
+ if (prev || next)
vma->gpuva.flags |= XE_VMA_FIRST_REBIND;
- }
- err = xe_vm_unbind(vm, vma, op->engine, op->syncs,
+ err = xe_vm_unbind(vm, vma, op->q, op->syncs,
op->num_syncs,
- !prev && !next ? op->fence : NULL,
op->flags & XE_VMA_OP_FIRST,
- op->flags & XE_VMA_OP_LAST && !prev &&
- !next);
+ op->flags & XE_VMA_OP_LAST &&
+ !prev && !next);
if (err)
break;
op->remap.unmap_done = true;
if (prev) {
op->remap.prev->gpuva.flags |= XE_VMA_LAST_REBIND;
- err = xe_vm_bind(vm, op->remap.prev, op->engine,
+ err = xe_vm_bind(vm, op->remap.prev, op->q,
xe_vma_bo(op->remap.prev), op->syncs,
- op->num_syncs,
- !next ? op->fence : NULL, true, false,
+ op->num_syncs, true, false,
op->flags & XE_VMA_OP_LAST && !next);
op->remap.prev->gpuva.flags &= ~XE_VMA_LAST_REBIND;
if (err)
if (next) {
op->remap.next->gpuva.flags |= XE_VMA_LAST_REBIND;
- err = xe_vm_bind(vm, op->remap.next, op->engine,
+ err = xe_vm_bind(vm, op->remap.next, op->q,
xe_vma_bo(op->remap.next),
op->syncs, op->num_syncs,
- op->fence, true, false,
+ true, false,
op->flags & XE_VMA_OP_LAST);
op->remap.next->gpuva.flags &= ~XE_VMA_LAST_REBIND;
if (err)
break;
op->remap.next = NULL;
}
- vm->async_ops.munmap_rebind_inflight = false;
break;
}
case DRM_GPUVA_OP_UNMAP:
- err = xe_vm_unbind(vm, vma, op->engine, op->syncs,
- op->num_syncs, op->fence,
- op->flags & XE_VMA_OP_FIRST,
+ err = xe_vm_unbind(vm, vma, op->q, op->syncs,
+ op->num_syncs, op->flags & XE_VMA_OP_FIRST,
op->flags & XE_VMA_OP_LAST);
break;
case DRM_GPUVA_OP_PREFETCH:
- err = xe_vm_prefetch(vm, vma, op->engine, op->prefetch.region,
- op->syncs, op->num_syncs, op->fence,
+ err = xe_vm_prefetch(vm, vma, op->q, op->prefetch.region,
+ op->syncs, op->num_syncs,
op->flags & XE_VMA_OP_FIRST,
op->flags & XE_VMA_OP_LAST);
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
+ }
+
+ if (err)
+ trace_xe_vma_fail(vma);
+
+ return err;
+}
+
+static int __xe_vma_op_execute(struct xe_vm *vm, struct xe_vma *vma,
+ struct xe_vma_op *op)
+{
+ struct drm_exec exec;
+ int err;
+
+retry_userptr:
+ drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT);
+ drm_exec_until_all_locked(&exec) {
+ err = op_execute(&exec, vm, vma, op);
+ drm_exec_retry_on_contention(&exec);
+ if (err)
+ break;
}
+ drm_exec_fini(&exec);
- ttm_eu_backoff_reservation(&ww, &objs);
if (err == -EAGAIN && xe_vma_is_userptr(vma)) {
lockdep_assert_held_write(&vm->lock);
err = xe_vma_userptr_pin_pages(vma);
if (!err)
- goto again;
- }
- xe_bo_put(vbo);
+ goto retry_userptr;
- if (err)
trace_xe_vma_fail(vma);
+ }
return err;
}
op);
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
}
return ret;
while (op->num_syncs--)
xe_sync_entry_cleanup(&op->syncs[op->num_syncs]);
kfree(op->syncs);
- if (op->engine)
- xe_engine_put(op->engine);
- if (op->fence)
- dma_fence_put(&op->fence->fence);
+ if (op->q)
+ xe_exec_queue_put(op->q);
}
- if (!list_empty(&op->link)) {
- spin_lock_irq(&vm->async_ops.lock);
+ if (!list_empty(&op->link))
list_del(&op->link);
- spin_unlock_irq(&vm->async_ops.lock);
- }
if (op->ops)
drm_gpuva_ops_free(&vm->gpuvm, op->ops);
if (last)
}
static void xe_vma_op_unwind(struct xe_vm *vm, struct xe_vma_op *op,
- bool post_commit)
+ bool post_commit, bool prev_post_commit,
+ bool next_post_commit)
{
lockdep_assert_held_write(&vm->lock);
{
struct xe_vma *vma = gpuva_to_vma(op->base.unmap.va);
- down_read(&vm->userptr.notifier_lock);
- vma->gpuva.flags &= ~XE_VMA_DESTROYED;
- up_read(&vm->userptr.notifier_lock);
- if (post_commit)
- xe_vm_insert_vma(vm, vma);
+ if (vma) {
+ down_read(&vm->userptr.notifier_lock);
+ vma->gpuva.flags &= ~XE_VMA_DESTROYED;
+ up_read(&vm->userptr.notifier_lock);
+ if (post_commit)
+ xe_vm_insert_vma(vm, vma);
+ }
break;
}
case DRM_GPUVA_OP_REMAP:
struct xe_vma *vma = gpuva_to_vma(op->base.remap.unmap->va);
if (op->remap.prev) {
- prep_vma_destroy(vm, op->remap.prev, post_commit);
+ prep_vma_destroy(vm, op->remap.prev, prev_post_commit);
xe_vma_destroy_unlocked(op->remap.prev);
}
if (op->remap.next) {
- prep_vma_destroy(vm, op->remap.next, post_commit);
+ prep_vma_destroy(vm, op->remap.next, next_post_commit);
xe_vma_destroy_unlocked(op->remap.next);
}
- down_read(&vm->userptr.notifier_lock);
- vma->gpuva.flags &= ~XE_VMA_DESTROYED;
- up_read(&vm->userptr.notifier_lock);
- if (post_commit)
- xe_vm_insert_vma(vm, vma);
+ if (vma) {
+ down_read(&vm->userptr.notifier_lock);
+ vma->gpuva.flags &= ~XE_VMA_DESTROYED;
+ up_read(&vm->userptr.notifier_lock);
+ if (post_commit)
+ xe_vm_insert_vma(vm, vma);
+ }
break;
}
case DRM_GPUVA_OP_PREFETCH:
/* Nothing to do */
break;
default:
- XE_WARN_ON("NOT POSSIBLE");
+ drm_warn(&vm->xe->drm, "NOT POSSIBLE");
}
}
-static struct xe_vma_op *next_vma_op(struct xe_vm *vm)
-{
- return list_first_entry_or_null(&vm->async_ops.pending,
- struct xe_vma_op, link);
-}
-
-static void xe_vma_op_work_func(struct work_struct *w)
+static void vm_bind_ioctl_ops_unwind(struct xe_vm *vm,
+ struct drm_gpuva_ops **ops,
+ int num_ops_list)
{
- struct xe_vm *vm = container_of(w, struct xe_vm, async_ops.work);
-
- for (;;) {
- struct xe_vma_op *op;
- int err;
-
- if (vm->async_ops.error && !xe_vm_is_closed(vm))
- break;
-
- spin_lock_irq(&vm->async_ops.lock);
- op = next_vma_op(vm);
- spin_unlock_irq(&vm->async_ops.lock);
-
- if (!op)
- break;
-
- if (!xe_vm_is_closed(vm)) {
- down_write(&vm->lock);
- err = xe_vma_op_execute(vm, op);
- if (err) {
- drm_warn(&vm->xe->drm,
- "Async VM op(%d) failed with %d",
- op->base.op, err);
- vm_set_async_error(vm, err);
- up_write(&vm->lock);
-
- if (vm->async_ops.error_capture.addr)
- vm_error_capture(vm, err, 0, 0, 0);
- break;
- }
- up_write(&vm->lock);
- } else {
- struct xe_vma *vma;
+ int i;
- switch (op->base.op) {
- case DRM_GPUVA_OP_REMAP:
- vma = gpuva_to_vma(op->base.remap.unmap->va);
- trace_xe_vma_flush(vma);
+ for (i = num_ops_list - 1; i; ++i) {
+ struct drm_gpuva_ops *__ops = ops[i];
+ struct drm_gpuva_op *__op;
- down_write(&vm->lock);
- xe_vma_destroy_unlocked(vma);
- up_write(&vm->lock);
- break;
- case DRM_GPUVA_OP_UNMAP:
- vma = gpuva_to_vma(op->base.unmap.va);
- trace_xe_vma_flush(vma);
+ if (!__ops)
+ continue;
- down_write(&vm->lock);
- xe_vma_destroy_unlocked(vma);
- up_write(&vm->lock);
- break;
- default:
- /* Nothing to do */
- break;
- }
+ drm_gpuva_for_each_op_reverse(__op, __ops) {
+ struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
- if (op->fence && !test_bit(DMA_FENCE_FLAG_SIGNALED_BIT,
- &op->fence->fence.flags)) {
- if (!xe_vm_no_dma_fences(vm)) {
- op->fence->started = true;
- wake_up_all(&op->fence->wq);
- }
- dma_fence_signal(&op->fence->fence);
- }
+ xe_vma_op_unwind(vm, op,
+ op->flags & XE_VMA_OP_COMMITTED,
+ op->flags & XE_VMA_OP_PREV_COMMITTED,
+ op->flags & XE_VMA_OP_NEXT_COMMITTED);
}
- xe_vma_op_cleanup(vm, op);
+ drm_gpuva_ops_free(&vm->gpuvm, __ops);
}
}
-static int vm_bind_ioctl_ops_commit(struct xe_vm *vm,
- struct list_head *ops_list, bool async)
+static int vm_bind_ioctl_ops_execute(struct xe_vm *vm,
+ struct list_head *ops_list)
{
- struct xe_vma_op *op, *last_op, *next;
+ struct xe_vma_op *op, *next;
int err;
lockdep_assert_held_write(&vm->lock);
- list_for_each_entry(op, ops_list, link) {
- last_op = op;
- err = xe_vma_op_commit(vm, op);
- if (err)
- goto unwind;
- }
-
- if (!async) {
- err = xe_vma_op_execute(vm, last_op);
- if (err)
- goto unwind;
- xe_vma_op_cleanup(vm, last_op);
- } else {
- int i;
- bool installed = false;
-
- for (i = 0; i < last_op->num_syncs; i++)
- installed |= xe_sync_entry_signal(&last_op->syncs[i],
- NULL,
- &last_op->fence->fence);
- if (!installed && last_op->fence)
- dma_fence_signal(&last_op->fence->fence);
-
- spin_lock_irq(&vm->async_ops.lock);
- list_splice_tail(ops_list, &vm->async_ops.pending);
- spin_unlock_irq(&vm->async_ops.lock);
-
- if (!vm->async_ops.error)
- queue_work(system_unbound_wq, &vm->async_ops.work);
+ list_for_each_entry_safe(op, next, ops_list, link) {
+ err = xe_vma_op_execute(vm, op);
+ if (err) {
+ drm_warn(&vm->xe->drm, "VM op(%d) failed with %d",
+ op->base.op, err);
+ /*
+ * FIXME: Killing VM rather than proper error handling
+ */
+ xe_vm_kill(vm);
+ return -ENOSPC;
+ }
+ xe_vma_op_cleanup(vm, op);
}
return 0;
-
-unwind:
- list_for_each_entry_reverse(op, ops_list, link)
- xe_vma_op_unwind(vm, op, op->flags & XE_VMA_OP_COMMITTED);
- list_for_each_entry_safe(op, next, ops_list, link)
- xe_vma_op_cleanup(vm, op);
-
- return err;
-}
-
-/*
- * Unwind operations list, called after a failure of vm_bind_ioctl_ops_create or
- * vm_bind_ioctl_ops_parse.
- */
-static void vm_bind_ioctl_ops_unwind(struct xe_vm *vm,
- struct drm_gpuva_ops **ops,
- int num_ops_list)
-{
- int i;
-
- for (i = 0; i < num_ops_list; ++i) {
- struct drm_gpuva_ops *__ops = ops[i];
- struct drm_gpuva_op *__op;
-
- if (!__ops)
- continue;
-
- drm_gpuva_for_each_op(__op, __ops) {
- struct xe_vma_op *op = gpuva_op_to_vma_op(__op);
-
- xe_vma_op_unwind(vm, op, false);
- }
- }
}
#ifdef TEST_VM_ASYNC_OPS_ERROR
#define SUPPORTED_FLAGS \
- (FORCE_ASYNC_OP_ERROR | XE_VM_BIND_FLAG_ASYNC | \
- XE_VM_BIND_FLAG_READONLY | XE_VM_BIND_FLAG_IMMEDIATE | \
- XE_VM_BIND_FLAG_NULL | 0xffff)
+ (FORCE_ASYNC_OP_ERROR | DRM_XE_VM_BIND_FLAG_ASYNC | \
+ DRM_XE_VM_BIND_FLAG_READONLY | DRM_XE_VM_BIND_FLAG_IMMEDIATE | \
+ DRM_XE_VM_BIND_FLAG_NULL | 0xffff)
#else
#define SUPPORTED_FLAGS \
- (XE_VM_BIND_FLAG_ASYNC | XE_VM_BIND_FLAG_READONLY | \
- XE_VM_BIND_FLAG_IMMEDIATE | XE_VM_BIND_FLAG_NULL | 0xffff)
+ (DRM_XE_VM_BIND_FLAG_ASYNC | DRM_XE_VM_BIND_FLAG_READONLY | \
+ DRM_XE_VM_BIND_FLAG_IMMEDIATE | DRM_XE_VM_BIND_FLAG_NULL | \
+ 0xffff)
#endif
#define XE_64K_PAGE_MASK 0xffffull
u64 range = (*bind_ops)[i].range;
u64 addr = (*bind_ops)[i].addr;
u32 op = (*bind_ops)[i].op;
+ u32 flags = (*bind_ops)[i].flags;
u32 obj = (*bind_ops)[i].obj;
u64 obj_offset = (*bind_ops)[i].obj_offset;
- u32 region = (*bind_ops)[i].region;
- bool is_null = op & XE_VM_BIND_FLAG_NULL;
+ u32 prefetch_region = (*bind_ops)[i].prefetch_mem_region_instance;
+ bool is_null = flags & DRM_XE_VM_BIND_FLAG_NULL;
if (i == 0) {
- *async = !!(op & XE_VM_BIND_FLAG_ASYNC);
- } else if (XE_IOCTL_DBG(xe, !*async) ||
- XE_IOCTL_DBG(xe, !(op & XE_VM_BIND_FLAG_ASYNC)) ||
- XE_IOCTL_DBG(xe, VM_BIND_OP(op) ==
- XE_VM_BIND_OP_RESTART)) {
- err = -EINVAL;
- goto free_bind_ops;
- }
-
- if (XE_IOCTL_DBG(xe, !*async &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_UNMAP_ALL)) {
- err = -EINVAL;
- goto free_bind_ops;
- }
-
- if (XE_IOCTL_DBG(xe, !*async &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_PREFETCH)) {
+ *async = !!(flags & DRM_XE_VM_BIND_FLAG_ASYNC);
+ if (XE_IOCTL_DBG(xe, !*async && args->num_syncs)) {
+ err = -EINVAL;
+ goto free_bind_ops;
+ }
+ } else if (XE_IOCTL_DBG(xe, *async !=
+ !!(flags & DRM_XE_VM_BIND_FLAG_ASYNC))) {
err = -EINVAL;
goto free_bind_ops;
}
- if (XE_IOCTL_DBG(xe, VM_BIND_OP(op) >
- XE_VM_BIND_OP_PREFETCH) ||
- XE_IOCTL_DBG(xe, op & ~SUPPORTED_FLAGS) ||
+ if (XE_IOCTL_DBG(xe, op > DRM_XE_VM_BIND_OP_PREFETCH) ||
+ XE_IOCTL_DBG(xe, flags & ~SUPPORTED_FLAGS) ||
XE_IOCTL_DBG(xe, obj && is_null) ||
XE_IOCTL_DBG(xe, obj_offset && is_null) ||
- XE_IOCTL_DBG(xe, VM_BIND_OP(op) != XE_VM_BIND_OP_MAP &&
+ XE_IOCTL_DBG(xe, op != DRM_XE_VM_BIND_OP_MAP &&
is_null) ||
XE_IOCTL_DBG(xe, !obj &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_MAP &&
+ op == DRM_XE_VM_BIND_OP_MAP &&
!is_null) ||
XE_IOCTL_DBG(xe, !obj &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_UNMAP_ALL) ||
+ op == DRM_XE_VM_BIND_OP_UNMAP_ALL) ||
XE_IOCTL_DBG(xe, addr &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_UNMAP_ALL) ||
+ op == DRM_XE_VM_BIND_OP_UNMAP_ALL) ||
XE_IOCTL_DBG(xe, range &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_UNMAP_ALL) ||
+ op == DRM_XE_VM_BIND_OP_UNMAP_ALL) ||
XE_IOCTL_DBG(xe, obj &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_MAP_USERPTR) ||
+ op == DRM_XE_VM_BIND_OP_MAP_USERPTR) ||
XE_IOCTL_DBG(xe, obj &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_PREFETCH) ||
- XE_IOCTL_DBG(xe, region &&
- VM_BIND_OP(op) != XE_VM_BIND_OP_PREFETCH) ||
- XE_IOCTL_DBG(xe, !(BIT(region) &
+ op == DRM_XE_VM_BIND_OP_PREFETCH) ||
+ XE_IOCTL_DBG(xe, prefetch_region &&
+ op != DRM_XE_VM_BIND_OP_PREFETCH) ||
+ XE_IOCTL_DBG(xe, !(BIT(prefetch_region) &
xe->info.mem_region_mask)) ||
XE_IOCTL_DBG(xe, obj &&
- VM_BIND_OP(op) == XE_VM_BIND_OP_UNMAP)) {
+ op == DRM_XE_VM_BIND_OP_UNMAP)) {
err = -EINVAL;
goto free_bind_ops;
}
if (XE_IOCTL_DBG(xe, obj_offset & ~PAGE_MASK) ||
XE_IOCTL_DBG(xe, addr & ~PAGE_MASK) ||
XE_IOCTL_DBG(xe, range & ~PAGE_MASK) ||
- XE_IOCTL_DBG(xe, !range && VM_BIND_OP(op) !=
- XE_VM_BIND_OP_RESTART &&
- VM_BIND_OP(op) != XE_VM_BIND_OP_UNMAP_ALL)) {
+ XE_IOCTL_DBG(xe, !range &&
+ op != DRM_XE_VM_BIND_OP_UNMAP_ALL)) {
err = -EINVAL;
goto free_bind_ops;
}
struct xe_bo **bos = NULL;
struct drm_gpuva_ops **ops = NULL;
struct xe_vm *vm;
- struct xe_engine *e = NULL;
+ struct xe_exec_queue *q = NULL;
u32 num_syncs;
struct xe_sync_entry *syncs = NULL;
struct drm_xe_vm_bind_op *bind_ops;
if (err)
return err;
- if (args->engine_id) {
- e = xe_engine_lookup(xef, args->engine_id);
- if (XE_IOCTL_DBG(xe, !e)) {
+ if (args->exec_queue_id) {
+ q = xe_exec_queue_lookup(xef, args->exec_queue_id);
+ if (XE_IOCTL_DBG(xe, !q)) {
err = -ENOENT;
goto free_objs;
}
- if (XE_IOCTL_DBG(xe, !(e->flags & ENGINE_FLAG_VM))) {
+ if (XE_IOCTL_DBG(xe, !(q->flags & EXEC_QUEUE_FLAG_VM))) {
err = -EINVAL;
- goto put_engine;
+ goto put_exec_queue;
+ }
+
+ if (XE_IOCTL_DBG(xe, async !=
+ !!(q->flags & EXEC_QUEUE_FLAG_VM_ASYNC))) {
+ err = -EINVAL;
+ goto put_exec_queue;
}
}
vm = xe_vm_lookup(xef, args->vm_id);
if (XE_IOCTL_DBG(xe, !vm)) {
err = -EINVAL;
- goto put_engine;
+ goto put_exec_queue;
+ }
+
+ if (!args->exec_queue_id) {
+ if (XE_IOCTL_DBG(xe, async !=
+ !!(vm->flags & XE_VM_FLAG_ASYNC_DEFAULT))) {
+ err = -EINVAL;
+ goto put_vm;
+ }
}
err = down_write_killable(&vm->lock);
goto release_vm_lock;
}
- if (VM_BIND_OP(bind_ops[0].op) == XE_VM_BIND_OP_RESTART) {
- if (XE_IOCTL_DBG(xe, !(vm->flags & XE_VM_FLAG_ASYNC_BIND_OPS)))
- err = -EOPNOTSUPP;
- if (XE_IOCTL_DBG(xe, !err && args->num_syncs))
- err = EINVAL;
- if (XE_IOCTL_DBG(xe, !err && !vm->async_ops.error))
- err = -EPROTO;
-
- if (!err) {
- trace_xe_vm_restart(vm);
- vm_set_async_error(vm, 0);
-
- queue_work(system_unbound_wq, &vm->async_ops.work);
-
- /* Rebinds may have been blocked, give worker a kick */
- if (xe_vm_in_compute_mode(vm))
- xe_vm_queue_rebind_worker(vm);
- }
-
- goto release_vm_lock;
- }
-
- if (XE_IOCTL_DBG(xe, !vm->async_ops.error &&
- async != !!(vm->flags & XE_VM_FLAG_ASYNC_BIND_OPS))) {
- err = -EOPNOTSUPP;
- goto release_vm_lock;
- }
-
for (i = 0; i < args->num_binds; ++i) {
u64 range = bind_ops[i].range;
u64 addr = bind_ops[i].addr;
goto free_syncs;
}
- /* Do some error checking first to make the unwind easier */
- for (i = 0; i < args->num_binds; ++i) {
- u64 range = bind_ops[i].range;
- u64 addr = bind_ops[i].addr;
- u32 op = bind_ops[i].op;
-
- err = vm_bind_ioctl_lookup_vma(vm, bos[i], addr, range, op);
- if (err)
- goto free_syncs;
- }
-
for (i = 0; i < args->num_binds; ++i) {
u64 range = bind_ops[i].range;
u64 addr = bind_ops[i].addr;
u32 op = bind_ops[i].op;
+ u32 flags = bind_ops[i].flags;
u64 obj_offset = bind_ops[i].obj_offset;
u8 tile_mask = bind_ops[i].tile_mask;
- u32 region = bind_ops[i].region;
+ u32 prefetch_region = bind_ops[i].prefetch_mem_region_instance;
ops[i] = vm_bind_ioctl_ops_create(vm, bos[i], obj_offset,
- addr, range, op, tile_mask,
- region);
+ addr, range, op, flags,
+ tile_mask, prefetch_region);
if (IS_ERR(ops[i])) {
err = PTR_ERR(ops[i]);
ops[i] = NULL;
goto unwind_ops;
}
+
+ err = vm_bind_ioctl_ops_parse(vm, q, ops[i], syncs, num_syncs,
+ &ops_list,
+ i == args->num_binds - 1,
+ async);
+ if (err)
+ goto unwind_ops;
}
- err = vm_bind_ioctl_ops_parse(vm, e, ops, args->num_binds,
- syncs, num_syncs, &ops_list, async);
- if (err)
+ /* Nothing to do */
+ if (list_empty(&ops_list)) {
+ err = -ENODATA;
goto unwind_ops;
+ }
+
+ xe_vm_get(vm);
+ if (q)
+ xe_exec_queue_get(q);
+
+ err = vm_bind_ioctl_ops_execute(vm, &ops_list);
- err = vm_bind_ioctl_ops_commit(vm, &ops_list, async);
up_write(&vm->lock);
- for (i = 0; i < args->num_binds; ++i)
+ if (q)
+ xe_exec_queue_put(q);
+ xe_vm_put(vm);
+
+ for (i = 0; bos && i < args->num_binds; ++i)
xe_bo_put(bos[i]);
kfree(bos);
unwind_ops:
vm_bind_ioctl_ops_unwind(vm, ops, args->num_binds);
free_syncs:
- for (i = 0; err == -ENODATA && i < num_syncs; i++)
- xe_sync_entry_signal(&syncs[i], NULL, dma_fence_get_stub());
+ for (i = 0; err == -ENODATA && i < num_syncs; i++) {
+ struct dma_fence *fence =
+ xe_exec_queue_last_fence_get(to_wait_exec_queue(vm, q), vm);
+
+ xe_sync_entry_signal(&syncs[i], NULL, fence);
+ }
while (num_syncs--)
xe_sync_entry_cleanup(&syncs[num_syncs]);
up_write(&vm->lock);
put_vm:
xe_vm_put(vm);
-put_engine:
- if (e)
- xe_engine_put(e);
+put_exec_queue:
+ if (q)
+ xe_exec_queue_put(q);
free_objs:
kfree(bos);
kfree(ops);
return err == -ENODATA ? 0 : err;
}
-/*
- * XXX: Using the TTM wrappers for now, likely can call into dma-resv code
- * directly to optimize. Also this likely should be an inline function.
+/**
+ * xe_vm_lock() - Lock the vm's dma_resv object
+ * @vm: The struct xe_vm whose lock is to be locked
+ * @intr: Whether to perform any wait interruptible
+ *
+ * Return: 0 on success, -EINTR if @intr is true and the wait for a
+ * contended lock was interrupted. If @intr is false, the function
+ * always returns 0.
*/
-int xe_vm_lock(struct xe_vm *vm, struct ww_acquire_ctx *ww,
- int num_resv, bool intr)
+int xe_vm_lock(struct xe_vm *vm, bool intr)
{
- struct ttm_validate_buffer tv_vm;
- LIST_HEAD(objs);
- LIST_HEAD(dups);
-
- XE_WARN_ON(!ww);
-
- tv_vm.num_shared = num_resv;
- tv_vm.bo = xe_vm_ttm_bo(vm);
- list_add_tail(&tv_vm.head, &objs);
+ if (intr)
+ return dma_resv_lock_interruptible(xe_vm_resv(vm), NULL);
- return ttm_eu_reserve_buffers(ww, &objs, intr, &dups);
+ return dma_resv_lock(xe_vm_resv(vm), NULL);
}
-void xe_vm_unlock(struct xe_vm *vm, struct ww_acquire_ctx *ww)
+/**
+ * xe_vm_unlock() - Unlock the vm's dma_resv object
+ * @vm: The struct xe_vm whose lock is to be released.
+ *
+ * Unlock a buffer object lock that was locked by xe_vm_lock().
+ */
+void xe_vm_unlock(struct xe_vm *vm)
{
dma_resv_unlock(xe_vm_resv(vm));
- ww_acquire_fini(ww);
}
/**
u8 id;
int ret;
- XE_WARN_ON(!xe_vm_in_fault_mode(xe_vma_vm(vma)));
- XE_WARN_ON(xe_vma_is_null(vma));
+ xe_assert(xe, xe_vm_in_fault_mode(xe_vma_vm(vma)));
+ xe_assert(xe, !xe_vma_is_null(vma));
trace_xe_vma_usm_invalidate(vma);
/* Check that we don't race with page-table updates */
projects / linux-2.6-microblaze.git / blobdiff