Re: [PATCH 16/16] drm/i915: Drop display.has_fpga_db from device info

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Quoting José Roberto de Souza (2022-05-07 16:28:50)
> No need to have this parameter in intel_device_info struct
> as this feature is supported by Broadwell, Haswell all platforms with
> display version 9 or newer.

This is opposite of the direction we want to move to.

We want to embrace the has_xyz flags, instead of the macro trickery.

> As a side effect of the of removal this flag, it will not be printed
> in dmesg during driver load anymore and developers will have to rely
> on to check the macro and compare with platform being used and IP
> versions of it.

This is not a very good rationale. If the platform has something, but it
becomes disabled in runtime, then we should add an another print after
the runtime sanitization has been done.

Regards, Joonas

> 
> Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
> ---
>  drivers/gpu/drm/i915/i915_drv.h          | 4 +++-
>  drivers/gpu/drm/i915/i915_pci.c          | 3 ---
>  drivers/gpu/drm/i915/intel_device_info.h | 1 -
>  3 files changed, 3 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 4b1025dbaab2a..4a1edf48d37b9 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1306,7 +1306,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>                                           IS_BROADWELL(dev_priv) || \
>                                           IS_HASWELL(dev_priv))
>  #define HAS_DP_MST(dev_priv)            (HAS_DDI(dev_priv))
> -#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (INTEL_INFO(dev_priv)->display.has_fpga_dbg)
> +#define HAS_FPGA_DBG_UNCLAIMED(dev_priv) (DISPLAY_VER(dev_priv) >= 9 || \
> +                                         IS_BROADWELL(dev_priv) || \
> +                                         IS_HASWELL(dev_priv))
>  #define HAS_PSR(dev_priv)               (DISPLAY_VER(dev_priv) >= 9)
>  #define HAS_PSR2_SEL_FETCH(dev_priv)    (DISPLAY_VER(dev_priv) >= 12)
>  #define HAS_TRANSCODER(dev_priv, trans)         ((INTEL_INFO(dev_priv)->display.cpu_transcoder_mask & BIT(trans)) != 0)
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 5a42acb162a15..6a5b70b3ea2d7 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -523,7 +523,6 @@ static const struct intel_device_info vlv_info = {
>         .platform_engine_mask = BIT(RCS0) | BIT(VCS0) | BIT(BCS0) | BIT(VECS0), \
>         .display.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
>                 BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP), \
> -       .display.has_fpga_dbg = 1, \
>         HSW_PIPE_OFFSETS
>  
>  #define HSW_PLATFORM \
> @@ -657,7 +656,6 @@ static const struct intel_device_info skl_gt4_info = {
>         .display.cpu_transcoder_mask = BIT(TRANSCODER_A) | BIT(TRANSCODER_B) | \
>                 BIT(TRANSCODER_C) | BIT(TRANSCODER_EDP) | \
>                 BIT(TRANSCODER_DSI_A) | BIT(TRANSCODER_DSI_C), \
> -       .display.has_fpga_dbg = 1, \
>         .display.fbc_mask = BIT(INTEL_FBC_A), \
>         .display.has_hdcp = 1, \
>         .display.has_dmc = 1, \
> @@ -894,7 +892,6 @@ static const struct intel_device_info adl_s_info = {
>         .display.has_dmc = 1,                                                   \
>         .display.has_dsc = 1,                                                   \
>         .display.fbc_mask = BIT(INTEL_FBC_A),                                   \
> -       .display.has_fpga_dbg = 1,                                              \
>         .display.has_hdcp = 1,                                                  \
>         .display.has_hotplug = 1,                                               \
>         .display.ver = 13,                                                      \
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 7581ef4a68f94..e61a334b611ac 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -157,7 +157,6 @@ enum intel_ppgtt_type {
>         func(has_cdclk_crawl); \
>         func(has_dmc); \
>         func(has_dsc); \
> -       func(has_fpga_dbg); \
>         func(has_gmch); \
>         func(has_hdcp); \
>         func(has_hotplug); \
> -- 
> 2.36.0
> 




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