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habanalabs: show the process context dram usage

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When the user query the dram usage of a context, show it the dram usage of
its context, not the user context that is currently running on the device.

This has no effect right now as we only have a single process and a single
context, but this makes the code more ready for multiple process support.

Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Oded Gabbay 2019-07-30 11:48:02 +03:00
parent 4aecb05e52
commit 02e921e42b
1 changed files with 7 additions and 4 deletions
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11
drivers/misc/habanalabs/habanalabs_ioctl.c
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@ -89,8 +89,9 @@ static int hw_events_info(struct hl_device *hdev, struct hl_info_args *args)
return copy_to_user(out, arr, min(max_size, size)) ? -EFAULT : 0;
}
static int dram_usage_info(struct hl_device *hdev, struct hl_info_args *args)
static int dram_usage_info(struct hl_fpriv *hpriv, struct hl_info_args *args)
{
struct hl_device *hdev = hpriv->hdev;
struct hl_info_dram_usage dram_usage = {0};
u32 max_size = args->return_size;
void __user *out = (void __user *) (uintptr_t) args->return_pointer;
@ -104,7 +105,9 @@ static int dram_usage_info(struct hl_device *hdev, struct hl_info_args *args)
prop->dram_base_address);
dram_usage.dram_free_mem = (prop->dram_size - dram_kmd_size) -
atomic64_read(&hdev->dram_used_mem);
dram_usage.ctx_dram_mem = atomic64_read(&hdev->user_ctx->dram_phys_mem);
if (hpriv->ctx)
dram_usage.ctx_dram_mem =
atomic64_read(&hpriv->ctx->dram_phys_mem);
return copy_to_user(out, &dram_usage,
min((size_t) max_size, sizeof(dram_usage))) ? -EFAULT : 0;
@ -218,7 +221,7 @@ static int hl_info_ioctl(struct hl_fpriv *hpriv, void *data)
break;
case HL_INFO_DRAM_USAGE:
rc = dram_usage_info(hdev, args);
rc = dram_usage_info(hpriv, args);
break;
case HL_INFO_HW_IDLE:
@ -321,7 +324,7 @@ long hl_ioctl(struct file *filep, unsigned int cmd, unsigned long arg)
cmd = ioctl->cmd;
} else {
dev_err(hdev->dev, "invalid ioctl: pid=%d, nr=0x%02x\n",
task_pid_nr(current), nr);
task_pid_nr(current), nr);
return -ENOTTY;
}