| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <e0c5b9b3-338a-f589-0883-066db5bcbf21@linaro.org>
Date: Wed, 9 Nov 2022 15:22:40 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Kalyan Thota <quic_kalyant@...cinc.com>,
dri-devel@...ts.freedesktop.org, linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, robdclark@...omium.org,
dianders@...omium.org, swboyd@...omium.org,
quic_vpolimer@...cinc.com, quic_abhinavk@...cinc.com
Subject: Re: [PATCH 2/4] drm/msm/disp/dpu1: populate disp_info if an interface
is external
On 09/11/2022 15:16, Kalyan Thota wrote:
> DRM encoder type is same for eDP and DP (DRM_MODE_ENCODER_TMDS)
> populate is_external information in the disp_info so as to
> differentiate between eDP and DP on the DPU encoder side.
>
> Signed-off-by: Kalyan Thota <quic_kalyant@...cinc.com>
> ---
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 20 +++++++++++++++++---
> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h | 14 +++++++++++---
> drivers/gpu/drm/msm/dp/dp_display.c | 5 +++++
> drivers/gpu/drm/msm/msm_drv.h | 7 ++++++-
> 4 files changed, 39 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> index 9c6817b..5d6ad1f 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c
> @@ -2412,7 +2412,7 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
> struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms);
> struct drm_encoder *drm_enc = NULL;
> struct dpu_encoder_virt *dpu_enc = NULL;
> - int ret = 0;
> + int ret = 0, intf_i;
>
> dpu_enc = to_dpu_encoder_virt(enc);
>
> @@ -2424,13 +2424,16 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
> timer_setup(&dpu_enc->frame_done_timer,
> dpu_encoder_frame_done_timeout, 0);
>
> + intf_i = disp_info->h_tile_instance[0];
> if (disp_info->intf_type == DRM_MODE_ENCODER_DSI)
> timer_setup(&dpu_enc->vsync_event_timer,
> dpu_encoder_vsync_event_handler,
> 0);
> - else if (disp_info->intf_type == DRM_MODE_ENCODER_TMDS)
> + else if (disp_info->intf_type == DRM_MODE_ENCODER_TMDS) {
> dpu_enc->wide_bus_en = msm_dp_wide_bus_available(
> - priv->dp[disp_info->h_tile_instance[0]]);
> + priv->dp[intf_i]);
> + disp_info->is_external = msm_dp_is_external(priv->dp[intf_i]);
> + }
I will quite myself: "And DSI can be pluggable too. Please enumerate
connector types here rather than doing that in DP driver."
Your s/pluggable/external/ doesn't fix the issue.
>
> INIT_DELAYED_WORK(&dpu_enc->delayed_off_work,
> dpu_encoder_off_work);
> @@ -2455,6 +2458,17 @@ int dpu_encoder_setup(struct drm_device *dev, struct drm_encoder *enc,
>
> }
>
> +bool dpu_encoder_is_external(struct drm_encoder *drm_enc)
> +{
> + struct dpu_encoder_virt *dpu_enc;
> +
> + if (!drm_enc)
> + return false;
> +
> + dpu_enc = to_dpu_encoder_virt(drm_enc);
> + return dpu_enc->disp_info.is_external;
> +}
> +
> struct drm_encoder *dpu_encoder_init(struct drm_device *dev,
> int drm_enc_mode)
> {
> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> index 9e7236e..43f0d8b 100644
> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.h
> @@ -25,16 +25,18 @@
> * @num_of_h_tiles: Number of horizontal tiles in case of split interface
> * @h_tile_instance: Controller instance used per tile. Number of elements is
> * based on num_of_h_tiles
> - * @is_cmd_mode Boolean to indicate if the CMD mode is requested
> + * @is_cmd_mode: Boolean to indicate if the CMD mode is requested
> + * @is_external: Boolean to indicate if the intf is external
> * @is_te_using_watchdog_timer: Boolean to indicate watchdog TE is
> - * used instead of panel TE in cmd mode panels
> - * @dsc: DSC configuration data for DSC-enabled displays
> + * used instead of panel TE in cmd mode panels
> + * @dsc: DSC configuration data for DSC-enabled displays
> */
> struct msm_display_info {
> int intf_type;
> uint32_t num_of_h_tiles;
> uint32_t h_tile_instance[MAX_H_TILES_PER_DISPLAY];
> bool is_cmd_mode;
> + bool is_external;
> bool is_te_using_watchdog_timer;
> struct drm_dsc_config *dsc;
> };
> @@ -128,6 +130,12 @@ enum dpu_intf_mode dpu_encoder_get_intf_mode(struct drm_encoder *encoder);
> void dpu_encoder_virt_runtime_resume(struct drm_encoder *encoder);
>
> /**
> + * dpu_encoder_is_external - find if the encoder is of type external
> + * @drm_enc: Pointer to previously created drm encoder structure
> + */
> +bool dpu_encoder_is_external(struct drm_encoder *drm_enc);
> +
> +/**
> * dpu_encoder_init - initialize virtual encoder object
> * @dev: Pointer to drm device structure
> * @disp_info: Pointer to display information structure
> diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
> index bfd0aef..0bbdcca5 100644
> --- a/drivers/gpu/drm/msm/dp/dp_display.c
> +++ b/drivers/gpu/drm/msm/dp/dp_display.c
> @@ -1509,6 +1509,11 @@ bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
> return dp->wide_bus_en;
> }
>
> +bool msm_dp_is_external(const struct msm_dp *dp_display)
> +{
> + return (dp_display->connector_type == DRM_MODE_CONNECTOR_DisplayPort);
> +}
> +
> void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor)
> {
> struct dp_display_private *dp;
> diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
> index ea80846..3b9f8d2 100644
> --- a/drivers/gpu/drm/msm/msm_drv.h
> +++ b/drivers/gpu/drm/msm/msm_drv.h
> @@ -331,7 +331,7 @@ void msm_dp_snapshot(struct msm_disp_state *disp_state, struct msm_dp *dp_displa
>
> void msm_dp_debugfs_init(struct msm_dp *dp_display, struct drm_minor *minor);
> bool msm_dp_wide_bus_available(const struct msm_dp *dp_display);
> -
> +bool msm_dp_is_external(const struct msm_dp *dp_display);
> #else
> static inline int __init msm_dp_register(void)
> {
> @@ -365,6 +365,11 @@ static inline bool msm_dp_wide_bus_available(const struct msm_dp *dp_display)
> return false;
> }
>
> +static inline bool msm_dp_is_external(const struct msm_dp *dp_display)
> +{
> + return false;
> +}
> +
> #endif
>
> #ifdef CONFIG_DRM_MSM_MDP4
--
With best wishes
Dmitry
Powered by blists - more mailing lists