From ba3aca31f91ceef072970c1688bff40afc2ea275 Mon Sep 17 00:00:00 2001 From: Yuri Nudelman Date: Thu, 14 Oct 2021 12:10:31 +0300 Subject: [PATCH] habanalabs: print va_range in vm node debugfs VA range info could assist in debugging VA allocation bugs. Signed-off-by: Yuri Nudelman Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/common/debugfs.c | 25 ++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c index 1f2a3dc6c4e2f..a239c5679f952 100644 --- a/drivers/misc/habanalabs/common/debugfs.c +++ b/drivers/misc/habanalabs/common/debugfs.c @@ -235,6 +235,8 @@ static int vm_show(struct seq_file *s, void *data) struct hl_vm_hash_node *hnode; struct hl_userptr *userptr; struct hl_vm_phys_pg_pack *phys_pg_pack = NULL; + struct hl_va_range *va_range; + struct hl_vm_va_block *va_block; enum vm_type *vm_type; bool once = true; u64 j; @@ -314,6 +316,29 @@ static int vm_show(struct seq_file *s, void *data) spin_unlock(&dev_entry->ctx_mem_hash_spinlock); + mutex_lock(&dev_entry->hdev->fpriv_list_lock); + ctx = dev_entry->hdev->compute_ctx; + if (ctx) + hl_ctx_get(dev_entry->hdev, ctx); + mutex_unlock(&dev_entry->hdev->fpriv_list_lock); + if (ctx) { + seq_puts(s, "\nVA ranges:\n\n"); + for (i = HL_VA_RANGE_TYPE_HOST ; i < HL_VA_RANGE_TYPE_MAX ; ++i) { + va_range = ctx->va_range[i]; + seq_printf(s, " va_range %d\n", i); + seq_puts(s, "---------------------\n"); + mutex_lock(&va_range->lock); + list_for_each_entry(va_block, &va_range->list, node) { + seq_printf(s, "%#16llx - %#16llx (%#llx)\n", + va_block->start, va_block->end, + va_block->size); + } + mutex_unlock(&va_range->lock); + seq_puts(s, "\n"); + } + hl_ctx_put(ctx); + } + if (!once) seq_puts(s, "\n"); -- 2.30.2