[igt-dev] [i-g-t 2/6] lib: Cache xe_device at driver open/close level

[Modem, Bhanuprakash]

On Thu-04-05-2023 10:27 am, Bhanuprakash Modem wrote:
> Instead of caching the xe_device struct at subtest level, cache
> just after opening the driver. And remove from the cache just
> before closing the driver.
> 
> Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem at intel.com>
Cc: Janga Rahul Kumar <janga.rahul.kumar at intel.com>
> ---
>   lib/drmtest.c | 9 +++++++++
>   1 file changed, 9 insertions(+)
> 
> diff --git a/lib/drmtest.c b/lib/drmtest.c
> index 03b5239b2..f6cd8e500 100644
> --- a/lib/drmtest.c
> +++ b/lib/drmtest.c
> @@ -63,6 +63,7 @@
>   #include "intel_reg.h"
>   #include "ioctl_wrappers.h"
>   #include "igt_dummyload.h"
> +#include "xe/xe_query.h"
>   
>   /**
>    * SECTION:drmtest
> @@ -601,6 +602,10 @@ int drm_open_driver(int chipset)
>   		}
>   	}
>   
> +	/* Cache xe_device struct. */
> +	if (is_xe_device(fd))
> +		xe_device_get(fd);
> +
>   	return fd;
>   }
>   
> @@ -618,6 +623,10 @@ int drm_close_driver(int fd)
>   	if (fd < 3)
>   		return -1;
>   
> +	/* Remove xe_device from cache. */
> +	if (is_xe_device(fd))
> +		xe_device_put(fd);
> +
>   	return close(fd);
>   }
>