On Wed, Apr 03, 2024 at 04:52:41PM +0530, Balasubramani Vivekanandan wrote:
> From: Lucas De Marchi <[email protected]>
>
> Add initial display info for xe2hpd. It is similar to xelpd, but with no
> PORT_B.
>
> Bspec: 67066
> Signed-off-by: Lucas De Marchi <[email protected]>
> Signed-off-by: Balasubramani Vivekanandan
> <[email protected]>
> ---
> .../gpu/drm/i915/display/intel_display_device.c | 16 ++++++++++++++++
> 1 file changed, 16 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_display_device.c
> b/drivers/gpu/drm/i915/display/intel_display_device.c
> index b8903bd0e82a..0a26012041e9 100644
> --- a/drivers/gpu/drm/i915/display/intel_display_device.c
> +++ b/drivers/gpu/drm/i915/display/intel_display_device.c
> @@ -771,6 +771,21 @@ static const struct intel_display_device_info
> xe2_lpd_display = {
> BIT(INTEL_FBC_C) | BIT(INTEL_FBC_D),
> };
>
> +static const struct intel_display_device_info xe2_hpd_display = {
> + XE_LPD_FEATURES,
Don't we want to derive from XE_LPDP_FEATURES rather than
XE_LPD_FEATURES? If so, that takes care of initializing most of this
structure, aside from port_mask.
> + .has_cdclk_crawl = 1,
> + .has_cdclk_squash = 1,
> +
> + .__runtime_defaults.ip.ver = 14,
> + .__runtime_defaults.ip.rel = 1,
We're not supposed to have version numbers in these structures for
platforms that have GMD_ID (there might not even be just one version
number associated with the IP). The gmdid_display_map[] is the only
place where we need to map one or more version numbers to an info
structure.
Matt
> + .__runtime_defaults.fbc_mask = BIT(INTEL_FBC_A) | BIT(INTEL_FBC_B),
> + .__runtime_defaults.cpu_transcoder_mask =
> + BIT(TRANSCODER_A) | BIT(TRANSCODER_B) |
> + BIT(TRANSCODER_C) | BIT(TRANSCODER_D),
> + .__runtime_defaults.port_mask = BIT(PORT_A) |
> + BIT(PORT_TC1) | BIT(PORT_TC2) | BIT(PORT_TC3) | BIT(PORT_TC4),
> +};
> +
> __diag_pop();
>
> /*
> @@ -852,6 +867,7 @@ static const struct {
> const struct intel_display_device_info *display;
> } gmdid_display_map[] = {
> { 14, 0, &xe_lpdp_display },
> + { 14, 1, &xe2_hpd_display },
> { 20, 0, &xe2_lpd_display },
> };
>
> --
> 2.25.1
>
--
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation
