diff options
| author | Ofir Bitton <obitton@habana.ai> | 2021-01-05 12:55:06 +0200 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-01-27 21:03:51 +0200 |
| commit | d00697fbe13ccc1dfb7adb82204e1469a7783b07 (patch) | |
| tree | efb59972aab43efc4acac6c88d5f482939ee2eaf /drivers/misc/habanalabs/gaudi | |
| parent | 89473a1fc3607d9ee5a4f859a2684d0abd0c4ded (diff) | |
habanalabs: add new mem ioctl op for mapping hw blocks
For future ASIC support the driver allows user to map certain regions
in the device's configuration space for direct access from userspace.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/gaudi')
| -rw-r--r-- | drivers/misc/habanalabs/gaudi/gaudi.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/misc/habanalabs/gaudi/gaudi.c b/drivers/misc/habanalabs/gaudi/gaudi.c index b49e10394ed4..e1c6072e5fb3 100644 --- a/drivers/misc/habanalabs/gaudi/gaudi.c +++ b/drivers/misc/habanalabs/gaudi/gaudi.c @@ -8471,6 +8471,19 @@ static u64 gaudi_get_device_time(struct hl_device *hdev) return device_time | RREG32(mmPSOC_TIMESTAMP_CNTCVL); } +static int gaudi_get_hw_block_id(struct hl_device *hdev, u64 block_addr, + u32 *block_id) +{ + return -EPERM; +} + +static int gaudi_block_mmap(struct hl_device *hdev, + struct vm_area_struct *vma, + u32 block_id, u32 block_size) +{ + return -EPERM; +} + static const struct hl_asic_funcs gaudi_funcs = { .early_init = gaudi_early_init, .early_fini = gaudi_early_fini, @@ -8550,7 +8563,9 @@ static const struct hl_asic_funcs gaudi_funcs = { .collective_wait_create_jobs = gaudi_collective_wait_create_jobs, .scramble_addr = hl_mmu_scramble_addr, .descramble_addr = hl_mmu_descramble_addr, - .ack_protection_bits_errors = gaudi_ack_protection_bits_errors + .ack_protection_bits_errors = gaudi_ack_protection_bits_errors, + .get_hw_block_id = gaudi_get_hw_block_id, + .hw_block_mmap = gaudi_block_mmap }; /** |