gpu: nvgpu: Add per-GPU total to DMA memory prints

Track the total amount of DMA memory currently outstanding for each
GPU. Print this total in the DMA debugging/logging prints.

Bug 1956137

Change-Id: I929598e5aa388ee84db0badb4eb9f7c6cbe030c7
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1559518
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.h b/drivers/gpu/nvgpu/gk20a/gk20a.h
index 8ac82428..48b34db7 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.h
@@ -1269,6 +1269,8 @@ struct gk20a {
         /* memory training sequence and mclk switch scripts */
         u32 mem_config_idx;
 
+        u64 dma_memory_used;
+
 #if defined(CONFIG_TEGRA_GK20A_NVHOST) && defined(CONFIG_TEGRA_19x_GPU)
         phys_addr_t     syncpt_unit_base;
         size_t          syncpt_unit_size;