[PATCH i-g-t] tools/intel_gpu_top: Fix intel_gpu_top for pre-snb

[Kamil Konieczny]

Hi Ville,
On 2024-10-09 at 00:49:44 +0300, Ville Syrjala wrote:
> From: Ville Syrjälä <ville.syrjala at linux.intel.com>
> 
> __I915_PMU_REQUESTED_FREQUENCY is not available on pre-snb (*)
> so checking for it breaks intel_gpu_top completely for those
> machines. Check __I915_PMU_INTERRUPTS instead, which I believe
> is available on everything. Another option would be
> __I915_PMU_SOFTWARE_GT_AWAKE_TIME.
> 
> * we do have frequency information on ilk, but we've not
>   reverse engineered the hw unit<->Hz conversion factor so
>   exposing it as is might be a bit confusing...
> 
> Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>

Reviewed-by: Kamil Konieczny <kamil.konieczny at linux.intel.com>

> ---
>  tools/intel_gpu_top.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/tools/intel_gpu_top.c b/tools/intel_gpu_top.c
> index 9b65ae4eb941..a608b894d3de 100644
> --- a/tools/intel_gpu_top.c
> +++ b/tools/intel_gpu_top.c
> @@ -563,7 +563,7 @@ static int get_num_gts(uint64_t type)
>  
>  	errno = 0;
>  	for (cnt = 0; cnt < MAX_GTS; cnt++) {
> -		fd = igt_perf_open(type, __I915_PMU_REQUESTED_FREQUENCY(cnt));
> +		fd = igt_perf_open(type, __I915_PMU_INTERRUPTS(cnt));
>  		if (fd < 0)
>  			break;
>  
> -- 
> 2.45.2
>