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| author | Oded Gabbay <oded.gabbay@gmail.com> | 2019-02-15 23:39:21 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-18 09:46:45 +0100 |
| commit | eff6f4a0e70b7bcf4674f471a768860a74e638a6 (patch) | |
| tree | e39e2436c9022aa993d935e37507dece50a5e8e4 /drivers/misc/habanalabs/habanalabs_ioctl.c | |
| parent | habanalabs: add device reset support (diff) | |
| download | linux-eff6f4a0e70b7bcf4674f471a768860a74e638a6.tar.xz linux-eff6f4a0e70b7bcf4674f471a768860a74e638a6.zip | |
habanalabs: add command submission module
This patch adds the main flow for the user to submit work to the device.
Each work is described by a command submission object (CS). The CS contains
3 arrays of command buffers: One for execution, and two for context-switch
(store and restore).
For each CB, the user specifies on which queue to put that CB. In case of
an internal queue, the entry doesn't contain a pointer to the CB but the
address in the on-chip memory that the CB resides at.
The driver parses some of the CBs to enforce security restrictions.
The user receives a sequence number that represents the CS object. The user
can then query the driver regarding the status of the CS, using that
sequence number.
In case the CS doesn't finish before the timeout expires, the driver will
perform a soft-reset of the device.
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/habanalabs/habanalabs_ioctl.c')
| -rw-r--r-- | drivers/misc/habanalabs/habanalabs_ioctl.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/habanalabs_ioctl.c b/drivers/misc/habanalabs/habanalabs_ioctl.c index e56a51f6bab6..481db1a5e97e 100644 --- a/drivers/misc/habanalabs/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/habanalabs_ioctl.c @@ -16,7 +16,9 @@ [_IOC_NR(ioctl)] = {.cmd = ioctl, .func = _func} static const struct hl_ioctl_desc hl_ioctls[] = { - HL_IOCTL_DEF(HL_IOCTL_CB, hl_cb_ioctl) + HL_IOCTL_DEF(HL_IOCTL_CB, hl_cb_ioctl), + HL_IOCTL_DEF(HL_IOCTL_CS, hl_cs_ioctl), + HL_IOCTL_DEF(HL_IOCTL_WAIT_CS, hl_cs_wait_ioctl) }; #define HL_CORE_IOCTL_COUNT ARRAY_SIZE(hl_ioctls) |