[PATCH i-g-t 1/2] lib/igt_kms: Added library functions for aux-less ALPM status

[B, Jeevan]

++Mitul	

> -----Original Message-----
> From: B, Jeevan <jeevan.b at intel.com>
> Sent: Friday, September 20, 2024 3:15 PM
> To: igt-dev at lists.freedesktop.org
> Cc: Naladala, Ramanaidu <ramanaidu.naladala at intel.com>; Reddy Guddati,
> Santhosh <santhosh.reddy.guddati at intel.com>; B, Jeevan <jeevan.b at intel.com>
> Subject: [PATCH i-g-t 1/2] lib/igt_kms: Added library functions for aux-less ALPM
> status
> 
> Added helper functions to check aux-less alpm status to check weather it is
> enabled or disabled.
> 
> Signed-off-by: Jeevan B <jeevan.b at intel.com>
> ---
>  lib/igt_kms.c | 23 +++++++++++++++++++++++  lib/igt_kms.h |  1 +
>  2 files changed, 24 insertions(+)
> 
> diff --git a/lib/igt_kms.c b/lib/igt_kms.c index b40470c02..be6d6536a 100644
> --- a/lib/igt_kms.c
> +++ b/lib/igt_kms.c
> @@ -6094,6 +6094,29 @@ bool igt_get_i915_edp_lobf_status(int drmfd, char
> *connector_name)
>  	return strstr(buf, "LOBF status: enabled");  }
> 
> +/**
> + * igt_get_aux_less_alpm_status
> + * @drmfd: A drm file descriptor
> + * @connector_name: Name of the libdrm connector we're going to use
> + *
> + * Return: True if its enabled.
> + */
> +bool igt_get_aux_less_alpm_status(int drmfd, char *connector_name) {
> +	char buf[24];
> +	int fd, res;
> +
> +	fd = igt_debugfs_connector_dir(drmfd, connector_name, O_RDONLY);
> +	igt_assert(fd >= 0);
> +
> +	res = igt_debugfs_simple_read(fd, "i915_edp_lobf_info", buf, sizeof(buf));
> +	igt_require(res > 0);
> +
> +	close(fd);
> +
> +	return strstr(buf, "Aux-less alpm status: enabled"); }
> +
>  /**
>   * igt_get_output_max_bpc:
>   * @drmfd: A drm file descriptor
> diff --git a/lib/igt_kms.h b/lib/igt_kms.h index 25ba50916..8bbb6225b 100644
> --- a/lib/igt_kms.h
> +++ b/lib/igt_kms.h
> @@ -1196,6 +1196,7 @@ void igt_dump_connectors_fd(int drmfd);  void
> igt_dump_crtcs_fd(int drmfd);  bool
> igt_override_all_active_output_modes_to_fit_bw(igt_display_t *display);  bool
> igt_get_i915_edp_lobf_status(int drmfd, char *connector_name);
> +bool igt_get_aux_less_alpm_status(int drmfd, char *connector_name);
>  unsigned int igt_get_output_max_bpc(int drmfd, char *connector_name);
> unsigned int igt_get_pipe_current_bpc(int drmfd, enum pipe pipe);  void
> igt_assert_output_bpc_equal(int drmfd, enum pipe pipe,
> --
> 2.25.1