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| author | Dani Liberman <dliberman@habana.ai> | 2021-10-14 22:38:41 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-12-26 08:59:05 +0200 |
| commit | 48f31169830f589e4c7ac475ccc7414951ded3f0 (patch) | |
| tree | 24b1f015f44e7fce5dd100d3e9418043240c7737 /drivers/misc/habanalabs/common | |
| parent | 234caa52736b8d413892fb1b2471066dc4b46629 (diff) | |
| download | linux-48f31169830f589e4c7ac475ccc7414951ded3f0.tar.gz linux-48f31169830f589e4c7ac475ccc7414951ded3f0.tar.bz2 linux-48f31169830f589e4c7ac475ccc7414951ded3f0.zip | |
habanalabs: change wait for interrupt timeout to 64 bit
In order to increase maximum wait-for-interrupt timeout, change it
to 64 bit variable. This wait is used only by newer ASICs, so no
problem in changing this interface at this time.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/common')
| -rw-r--r-- | drivers/misc/habanalabs/common/command_submission.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/drivers/misc/habanalabs/common/command_submission.c b/drivers/misc/habanalabs/common/command_submission.c index 9ebcd9894d83..54a5425a77a0 100644 --- a/drivers/misc/habanalabs/common/command_submission.c +++ b/drivers/misc/habanalabs/common/command_submission.c @@ -2765,8 +2765,23 @@ static int hl_cs_wait_ioctl(struct hl_fpriv *hpriv, void *data) return 0; } +static inline unsigned long hl_usecs64_to_jiffies(const u64 usecs) +{ + if (usecs <= U32_MAX) + return usecs_to_jiffies(usecs); + + /* + * If the value in nanoseconds is larger than 64 bit, use the largest + * 64 bit value. + */ + if (usecs >= ((u64)(U64_MAX / NSEC_PER_USEC))) + return nsecs_to_jiffies(U64_MAX); + + return nsecs_to_jiffies(usecs * NSEC_PER_USEC); +} + static int _hl_interrupt_wait_ioctl(struct hl_device *hdev, struct hl_ctx *ctx, - u32 timeout_us, u64 user_address, + u64 timeout_us, u64 user_address, u64 target_value, u16 interrupt_offset, u32 *status, u64 *timestamp) @@ -2778,10 +2793,7 @@ static int _hl_interrupt_wait_ioctl(struct hl_device *hdev, struct hl_ctx *ctx, long completion_rc; int rc = 0; - if (timeout_us == U32_MAX) - timeout = timeout_us; - else - timeout = usecs_to_jiffies(timeout_us); + timeout = hl_usecs64_to_jiffies(timeout_us); hl_ctx_get(hdev, ctx); |