diff options
| author |   Yuri Nudelman <ynudelman@habana.ai> | 2021-07-27 17:39:42 +0300 |
|---|---|---|
| committer |   Oded Gabbay <ogabbay@kernel.org> | 2021-09-01 18:38:24 +0300 |
| commit | 714fccbf48245482b9d5ed356a9ef23f2eb68612 (patch) | |
| tree | ccf8820d32316c16028ecdbe7891475e5b7fba3a /drivers/misc | |
| parent | habanalabs/gaudi: move scrubbing to late init (diff) | |
| download | linux-dev-714fccbf48245482b9d5ed356a9ef23f2eb68612.tar.xz linux-dev-714fccbf48245482b9d5ed356a9ef23f2eb68612.zip | |
habanalabs: save pid per userptr
Currently userptr endpoint in debugfs prints out virtual addresses
in the user process memory space, without specifying their owner process
ID. User space virtual address is meaningless without knowing the owner
process.
Signed-off-by: Yuri Nudelman <ynudelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/habanalabs/common/debugfs.c | 8 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 2 | ||||
| -rw-r--r-- | drivers/misc/habanalabs/common/memory.c | 1 |
3 files changed, 7 insertions, 4 deletions
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c index 2c587af28f9b..264424c96959 100644 --- a/drivers/misc/habanalabs/common/debugfs.c +++ b/drivers/misc/habanalabs/common/debugfs.c @@ -209,12 +209,12 @@ static int userptr_show(struct seq_file *s, void *data) if (first) { first = false; seq_puts(s, "\n"); - seq_puts(s, " user virtual address size dma dir\n"); + seq_puts(s, " pid user virtual address size dma dir\n"); seq_puts(s, "----------------------------------------------------------\n"); } - seq_printf(s, - " 0x%-14llx %-10llu %-30s\n", - userptr->addr, userptr->size, dma_dir[userptr->dir]); + seq_printf(s, " %-7d 0x%-14llx %-10llu %-30s\n", + userptr->pid, userptr->addr, userptr->size, + dma_dir[userptr->dir]); } spin_unlock(&dev_entry->userptr_spinlock); diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index 7cee08d406ae..5c7f26ea3140 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -1434,6 +1434,7 @@ struct hl_ctx_mgr { * @sgt: pointer to the scatter-gather table that holds the pages. * @dir: for DMA unmapping, the direction must be supplied, so save it. * @debugfs_list: node in debugfs list of command submissions. + * @pid: the pid of the user process owning the memory * @addr: user-space virtual address of the start of the memory area. * @size: size of the memory area to pin & map. * @dma_mapped: true if the SG was mapped to DMA addresses, false otherwise. @@ -1446,6 +1447,7 @@ struct hl_userptr { struct sg_table *sgt; enum dma_data_direction dir; struct list_head debugfs_list; + pid_t pid; u64 addr; u64 size; u8 dma_mapped; diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index efc460e9db5d..908a3277abaa 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -1762,6 +1762,7 @@ int hl_pin_host_memory(struct hl_device *hdev, u64 addr, u64 size, return -EINVAL; } + userptr->pid = current->pid; userptr->sgt = kzalloc(sizeof(*userptr->sgt), GFP_KERNEL); if (!userptr->sgt) return -ENOMEM; |