diff options
| author | Ofir Bitton <obitton@habana.ai> | 2020-07-13 13:36:55 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2020-07-24 20:31:37 +0300 |
| commit | a04b7cd97eef13a489ca44c979cf91e24cfa7b55 (patch) | |
| tree | 5e887df646106fcb7d155cec600b76b8dc5f5903 /drivers/misc/habanalabs/common/command_submission.c | |
| parent | eb8b293e794bbbafa9d615ea939982a19bf92867 (diff) | |
habanalabs: create internal CB pool
Create a device MMU-mapped internal command buffer pool, in order to allow
the driver to allocate CBs for the signal/wait operations
that are fetched by the queues when they are configured with the user's
address space ID.
We must pre-map this internal pool due to performance issues.
This pool is needed for future ASIC support and it is currently unused in
GOYA and GAUDI.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/common/command_submission.c')
| -rw-r--r-- | drivers/misc/habanalabs/common/command_submission.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c index c605be89f764..e096532c0e48 100644 --- a/drivers/misc/habanalabs/common/command_submission.c +++ b/drivers/misc/habanalabs/common/command_submission.c @@ -919,7 +919,13 @@ static int cs_ioctl_signal_wait(struct hl_fpriv *hpriv, enum hl_cs_type cs_type, goto put_cs; } - cb = hl_cb_kernel_create(hdev, PAGE_SIZE); + if (cs->type == CS_TYPE_WAIT) + cb_size = hdev->asic_funcs->get_wait_cb_size(hdev); + else + cb_size = hdev->asic_funcs->get_signal_cb_size(hdev); + + cb = hl_cb_kernel_create(hdev, cb_size, + q_type == QUEUE_TYPE_HW && hdev->mmu_enable); if (!cb) { ctx->cs_counters.out_of_mem_drop_cnt++; kfree(job); @@ -927,11 +933,6 @@ static int cs_ioctl_signal_wait(struct hl_fpriv *hpriv, enum hl_cs_type cs_type, goto put_cs; } - if (cs->type == CS_TYPE_WAIT) - cb_size = hdev->asic_funcs->get_wait_cb_size(hdev); - else - cb_size = hdev->asic_funcs->get_signal_cb_size(hdev); - job->id = 0; job->cs = cs; job->user_cb = cb; |