From 9f191555ba4ba8fc82e589670e46a7f79b72a157 Mon Sep 17 00:00:00 2001 From: Robin Murphy Date: Mon, 10 Dec 2018 14:00:28 +0000 Subject: dma-debug: Expose nr_total_entries in debugfs Expose nr_total_entries in debugfs, so that {num,min}_free_entries become even more meaningful to users interested in current/maximum utilisation. This becomes even more relevant once nr_total_entries may change at runtime beyond just the existing AMD GART debug code. Suggested-by: John Garry Signed-off-by: Robin Murphy Tested-by: Qian Cai Signed-off-by: Christoph Hellwig --- Documentation/DMA-API.txt | 3 +++ 1 file changed, 3 insertions(+) (limited to 'Documentation/DMA-API.txt') diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt index ac66ae2509a9..6bdb095393b0 100644 --- a/Documentation/DMA-API.txt +++ b/Documentation/DMA-API.txt @@ -723,6 +723,9 @@ dma-api/min_free_entries This read-only file can be read to get the dma-api/num_free_entries The current number of free dma_debug_entries in the allocator. +dma-api/nr_total_entries The total number of dma_debug_entries in the + allocator, both free and used. + dma-api/driver-filter You can write a name of a driver into this file to limit the debug output to requests from that particular driver. Write an empty string to -- cgit v1.2.3