habanalabs: fix mmu node address resolution in debugfs

yuranu · ogabbay · commit 09ae43043c74 · 2021-09-01T18:38:24.000+03:00
The address resolution via debugfs was not taking into consideration the
page offset, resulting in a wrong address.

Signed-off-by: Yuri Nudelman &lt;ynudelman@habana.ai&gt;
Reviewed-by: Oded Gabbay &lt;ogabbay@kernel.org&gt;
Signed-off-by: Oded Gabbay &lt;ogabbay@kernel.org&gt;
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c
@@ -349,7 +349,7 @@ static int mmu_show(struct seq_file *s, void *data)
 		return 0;
 	}
 
-	phys_addr = hops_info.hop_info[hops_info.used_hops - 1].hop_pte_val;
+	hl_mmu_va_to_pa(ctx, virt_addr, &phys_addr);
 
 	if (hops_info.scrambled_vaddr &&
 		(dev_entry->mmu_addr != hops_info.scrambled_vaddr))

Original file line number	Diff line number	Diff line change
`@@ -349,7 +349,7 @@ static int mmu_show(struct seq_file s, void data)`
`349`	`349`	`return 0;`
`350`	`350`	`}`
`351`	`351`
`352`		`- phys_addr = hops_info.hop_info[hops_info.used_hops - 1].hop_pte_val;`
	`352`	`+ hl_mmu_va_to_pa(ctx, virt_addr, &phys_addr);`
`353`	`353`
`354`	`354`	`if (hops_info.scrambled_vaddr &&`
`355`	`355`	`(dev_entry->mmu_addr != hops_info.scrambled_vaddr))`