[CI] drm/xe: Invalidate media_gt TLBs in PT code
Matthew Brost
matthew.brost at intel.com
Wed Aug 21 15:58:34 UTC 2024
Testing on LNL has shown media GT's TLBs need to be invalidated via the
GuC, update PT code appropriately.
v2:
- Do dma_fence_get before first call of invalidation_fence_init (Himal)
- No need to check for valid chain fence (Himal)
Fixes: 3330361543fc ("drm/xe/lnl: Add LNL platform definition")
Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
drivers/gpu/drm/xe/xe_pt.c | 99 ++++++++++++++++++++++++++++++--------
1 file changed, 80 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/xe/xe_pt.c b/drivers/gpu/drm/xe/xe_pt.c
index 579ed31b46db..6c6714af3d5d 100644
--- a/drivers/gpu/drm/xe/xe_pt.c
+++ b/drivers/gpu/drm/xe/xe_pt.c
@@ -3,6 +3,8 @@
* Copyright © 2022 Intel Corporation
*/
+#include <linux/dma-fence-chain.h>
+
#include "xe_pt.h"
#include "regs/xe_gtt_defs.h"
@@ -1849,13 +1851,20 @@ int xe_pt_update_ops_prepare(struct xe_tile *tile, struct xe_vma_ops *vops)
static void bind_op_commit(struct xe_vm *vm, struct xe_tile *tile,
struct xe_vm_pgtable_update_ops *pt_update_ops,
- struct xe_vma *vma, struct dma_fence *fence)
+ struct xe_vma *vma, struct dma_fence *fence,
+ struct dma_fence *fence2)
{
- if (!xe_vma_has_no_bo(vma) && !xe_vma_bo(vma)->vm)
+ if (!xe_vma_has_no_bo(vma) && !xe_vma_bo(vma)->vm) {
dma_resv_add_fence(xe_vma_bo(vma)->ttm.base.resv, fence,
pt_update_ops->wait_vm_bookkeep ?
DMA_RESV_USAGE_KERNEL :
DMA_RESV_USAGE_BOOKKEEP);
+ if (fence2)
+ dma_resv_add_fence(xe_vma_bo(vma)->ttm.base.resv, fence2,
+ pt_update_ops->wait_vm_bookkeep ?
+ DMA_RESV_USAGE_KERNEL :
+ DMA_RESV_USAGE_BOOKKEEP);
+ }
vma->tile_present |= BIT(tile->id);
vma->tile_staged &= ~BIT(tile->id);
if (xe_vma_is_userptr(vma)) {
@@ -1875,13 +1884,20 @@ static void bind_op_commit(struct xe_vm *vm, struct xe_tile *tile,
static void unbind_op_commit(struct xe_vm *vm, struct xe_tile *tile,
struct xe_vm_pgtable_update_ops *pt_update_ops,
- struct xe_vma *vma, struct dma_fence *fence)
+ struct xe_vma *vma, struct dma_fence *fence,
+ struct dma_fence *fence2)
{
- if (!xe_vma_has_no_bo(vma) && !xe_vma_bo(vma)->vm)
+ if (!xe_vma_has_no_bo(vma) && !xe_vma_bo(vma)->vm) {
dma_resv_add_fence(xe_vma_bo(vma)->ttm.base.resv, fence,
pt_update_ops->wait_vm_bookkeep ?
DMA_RESV_USAGE_KERNEL :
DMA_RESV_USAGE_BOOKKEEP);
+ if (fence2)
+ dma_resv_add_fence(xe_vma_bo(vma)->ttm.base.resv, fence2,
+ pt_update_ops->wait_vm_bookkeep ?
+ DMA_RESV_USAGE_KERNEL :
+ DMA_RESV_USAGE_BOOKKEEP);
+ }
vma->tile_present &= ~BIT(tile->id);
if (!vma->tile_present) {
list_del_init(&vma->combined_links.rebind);
@@ -1898,7 +1914,8 @@ static void unbind_op_commit(struct xe_vm *vm, struct xe_tile *tile,
static void op_commit(struct xe_vm *vm,
struct xe_tile *tile,
struct xe_vm_pgtable_update_ops *pt_update_ops,
- struct xe_vma_op *op, struct dma_fence *fence)
+ struct xe_vma_op *op, struct dma_fence *fence,
+ struct dma_fence *fence2)
{
xe_vm_assert_held(vm);
@@ -1907,26 +1924,28 @@ static void op_commit(struct xe_vm *vm,
if (!op->map.immediate && xe_vm_in_fault_mode(vm))
break;
- bind_op_commit(vm, tile, pt_update_ops, op->map.vma, fence);
+ bind_op_commit(vm, tile, pt_update_ops, op->map.vma, fence,
+ fence2);
break;
case DRM_GPUVA_OP_REMAP:
unbind_op_commit(vm, tile, pt_update_ops,
- gpuva_to_vma(op->base.remap.unmap->va), fence);
+ gpuva_to_vma(op->base.remap.unmap->va), fence,
+ fence2);
if (op->remap.prev)
bind_op_commit(vm, tile, pt_update_ops, op->remap.prev,
- fence);
+ fence, fence2);
if (op->remap.next)
bind_op_commit(vm, tile, pt_update_ops, op->remap.next,
- fence);
+ fence, fence2);
break;
case DRM_GPUVA_OP_UNMAP:
unbind_op_commit(vm, tile, pt_update_ops,
- gpuva_to_vma(op->base.unmap.va), fence);
+ gpuva_to_vma(op->base.unmap.va), fence, fence2);
break;
case DRM_GPUVA_OP_PREFETCH:
bind_op_commit(vm, tile, pt_update_ops,
- gpuva_to_vma(op->base.prefetch.va), fence);
+ gpuva_to_vma(op->base.prefetch.va), fence, fence2);
break;
default:
drm_warn(&vm->xe->drm, "NOT POSSIBLE");
@@ -1963,7 +1982,8 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops)
struct xe_vm_pgtable_update_ops *pt_update_ops =
&vops->pt_update_ops[tile->id];
struct dma_fence *fence;
- struct invalidation_fence *ifence = NULL;
+ struct invalidation_fence *ifence = NULL, *mfence = NULL;
+ struct dma_fence_chain *chain_fence = NULL;
struct xe_range_fence *rfence;
struct xe_vma_op *op;
int err = 0, i;
@@ -1996,6 +2016,18 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops)
err = -ENOMEM;
goto kill_vm_tile1;
}
+ if (tile->media_gt) {
+ mfence = kzalloc(sizeof(*ifence), GFP_KERNEL);
+ if (!mfence) {
+ err = -ENOMEM;
+ goto free_ifence;
+ }
+ chain_fence = dma_fence_chain_alloc();
+ if (!chain_fence) {
+ err = -ENOMEM;
+ goto free_ifence;
+ }
+ }
}
rfence = kzalloc(sizeof(*rfence), GFP_KERNEL);
@@ -2027,19 +2059,46 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops)
/* tlb invalidation must be done before signaling rebind */
if (ifence) {
+ if (mfence)
+ dma_fence_get(fence);
invalidation_fence_init(tile->primary_gt, ifence, fence,
pt_update_ops->start,
pt_update_ops->last, vm->usm.asid);
- fence = &ifence->base.base;
+ if (mfence) {
+ invalidation_fence_init(tile->media_gt, mfence, fence,
+ pt_update_ops->start,
+ pt_update_ops->last, vm->usm.asid);
+ dma_fence_chain_init(chain_fence, &ifence->base.base,
+ &mfence->base.base, 0);
+ fence = &chain_fence->base;
+ } else {
+ fence = &ifence->base.base;
+ }
}
- dma_resv_add_fence(xe_vm_resv(vm), fence,
- pt_update_ops->wait_vm_bookkeep ?
- DMA_RESV_USAGE_KERNEL :
- DMA_RESV_USAGE_BOOKKEEP);
+ if (!mfence) {
+ dma_resv_add_fence(xe_vm_resv(vm), fence,
+ pt_update_ops->wait_vm_bookkeep ?
+ DMA_RESV_USAGE_KERNEL :
+ DMA_RESV_USAGE_BOOKKEEP);
+
+ list_for_each_entry(op, &vops->list, link)
+ op_commit(vops->vm, tile, pt_update_ops, op, fence, NULL);
+ } else {
+ dma_resv_add_fence(xe_vm_resv(vm), &ifence->base.base,
+ pt_update_ops->wait_vm_bookkeep ?
+ DMA_RESV_USAGE_KERNEL :
+ DMA_RESV_USAGE_BOOKKEEP);
+
+ dma_resv_add_fence(xe_vm_resv(vm), &mfence->base.base,
+ pt_update_ops->wait_vm_bookkeep ?
+ DMA_RESV_USAGE_KERNEL :
+ DMA_RESV_USAGE_BOOKKEEP);
- list_for_each_entry(op, &vops->list, link)
- op_commit(vops->vm, tile, pt_update_ops, op, fence);
+ list_for_each_entry(op, &vops->list, link)
+ op_commit(vops->vm, tile, pt_update_ops, op,
+ &ifence->base.base, &mfence->base.base);
+ }
if (pt_update_ops->needs_userptr_lock)
up_read(&vm->userptr.notifier_lock);
@@ -2049,6 +2108,8 @@ xe_pt_update_ops_run(struct xe_tile *tile, struct xe_vma_ops *vops)
free_rfence:
kfree(rfence);
free_ifence:
+ dma_fence_chain_free(chain_fence);
+ kfree(mfence);
kfree(ifence);
kill_vm_tile1:
if (err != -EAGAIN && tile->id)
--
2.34.1
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