diff options
| author | Dafna Hirschfeld <dhirschfeld@habana.ai> | 2022-04-11 17:11:23 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-22 22:01:20 +0300 |
| commit | 0688474eda80ba8a87c38c138aa00b4fea90d8cc (patch) | |
| tree | b2fbff500ba941c085c169e6bff0d281f7ac7830 /drivers/misc/habanalabs/goya | |
| parent | 829ec038c967d04032d6922b34abff0713660638 (diff) | |
| download | linux-0688474eda80ba8a87c38c138aa00b4fea90d8cc.tar.xz | |
habanalabs: add device memory scrub ability through debugfs
Add the ability to scrub the device memory with a given value.
Add file 'dram_mem_scrub_val' to set the value
and a file 'dram_mem_scrub' to scrub the dram.
This is very important to help during automated tests, when you want
the CI system to randomize the memory before training certain
DL topologies.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/habanalabs/goya')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goya.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/goya/goya.c b/drivers/misc/habanalabs/goya/goya.c index f8fb6dc04269..f2d4362f6a46 100644 --- a/drivers/misc/habanalabs/goya/goya.c +++ b/drivers/misc/habanalabs/goya/goya.c @@ -5434,6 +5434,11 @@ static int goya_mmu_prefetch_cache_range(struct hl_device *hdev, u32 flags, u32 return 0; } +static int goya_scrub_device_dram(struct hl_device *hdev, u64 val) +{ + return -EOPNOTSUPP; +} + static const struct hl_asic_funcs goya_funcs = { .early_init = goya_early_init, .early_fini = goya_early_fini, @@ -5452,6 +5457,7 @@ static const struct hl_asic_funcs goya_funcs = { .asic_dma_alloc_coherent = goya_dma_alloc_coherent, .asic_dma_free_coherent = goya_dma_free_coherent, .scrub_device_mem = goya_scrub_device_mem, + .scrub_device_dram = goya_scrub_device_dram, .get_int_queue_base = goya_get_int_queue_base, .test_queues = goya_test_queues, .asic_dma_pool_zalloc = goya_dma_pool_zalloc, |