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habanalabs: remove unnecessary checks

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Now that the VA block free list is not updated on context close in order
to optimize this flow, no need in the sanity checks of the list contents
as these will fail for sure.
In addition, remove the "context closing with VA in use" print during hard
reset as this situation is a side effect of the failure that caused the
hard reset.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
This commit is contained in:
Omer Shpigelman 2019-11-14 18:23:59 +00:00 committed by Oded Gabbay
parent bea84c4d67
commit e604f551cd
1 changed files with 9 additions and 31 deletions
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40
drivers/misc/habanalabs/memory.c
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@ -544,7 +544,6 @@ static u64 get_va_block(struct hl_device *hdev,
/* calc the first possible aligned addr */
valid_start = va_block->start;
if (valid_start & (page_size - 1)) {
valid_start &= page_mask;
valid_start += page_size;
@ -1588,43 +1587,16 @@ int hl_vm_ctx_init(struct hl_ctx *ctx)
* @hdev : pointer to the habanalabs structure
* va_range : pointer to virtual addresses range
*
* This function initializes the following:
* - Checks that the given range contains the whole initial range
* This function does the following:
* - Frees the virtual addresses block list and its lock
*/
static void hl_va_range_fini(struct hl_device *hdev,
struct hl_va_range *va_range)
{
struct hl_vm_va_block *va_block;
if (list_empty(&va_range->list)) {
dev_warn(hdev->dev,
"va list should not be empty on cleanup!\n");
goto out;
}
if (!list_is_singular(&va_range->list)) {
dev_warn(hdev->dev,
"va list should not contain multiple blocks on cleanup!\n");
goto free_va_list;
}
va_block = list_first_entry(&va_range->list, typeof(*va_block), node);
if (va_block->start != va_range->start_addr ||
va_block->end != va_range->end_addr) {
dev_warn(hdev->dev,
"wrong va block on cleanup, from 0x%llx to 0x%llx\n",
va_block->start, va_block->end);
goto free_va_list;
}
free_va_list:
mutex_lock(&va_range->lock);
clear_va_list_locked(hdev, &va_range->list);
mutex_unlock(&va_range->lock);
out:
mutex_destroy(&va_range->lock);
}
@ -1659,8 +1631,14 @@ void hl_vm_ctx_fini(struct hl_ctx *ctx)
hl_debugfs_remove_ctx_mem_hash(hdev, ctx);
if (!hash_empty(ctx->mem_hash))
dev_notice(hdev->dev, "ctx is freed while it has va in use\n");
/*
* Clearly something went wrong on hard reset so no point in printing
* another side effect error
*/
if (!hdev->hard_reset_pending && !hash_empty(ctx->mem_hash))
dev_notice(hdev->dev,
"ctx %d is freed while it has va in use\n",
ctx->asid);
hash_for_each_safe(ctx->mem_hash, i, tmp_node, hnode, node) {
dev_dbg(hdev->dev,