Hi,
On Tue, Feb 13, 2018 at 02:00:39PM +0200, Laurent Pinchart wrote:
> The dss_mgr_ops operations implemented by the omapdrm side have to look
> up the omap_crtc objects from global variables as they are only passed a
> channel number. In order to remove global variables in the omapdrm
> driver pass the omap_drm_private pointer to the dss_mgr_ops. This
> requires storing a pointer to the omap_drm_private in a global variable
> on the DSS side as a temporary measure until the omapdrm and omapdss
> drivers get merged.
>
> Signed-off-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
> ---
Reviewed-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxxxx>
-- Sebastian
> drivers/gpu/drm/omapdrm/dss/omapdss.h | 41 ++++++++++++++++++++++-------------
> drivers/gpu/drm/omapdrm/dss/output.c | 28 +++++++++++++++---------
> drivers/gpu/drm/omapdrm/omap_crtc.c | 31 +++++++++++++++-----------
> drivers/gpu/drm/omapdrm/omap_crtc.h | 2 +-
> drivers/gpu/drm/omapdrm/omap_drv.c | 2 +-
> 5 files changed, 64 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> index aeaa337b29c7..318641f5bc24 100644
> --- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
> +++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
> @@ -59,6 +59,7 @@
> #define DISPC_IRQ_ACBIAS_COUNT_STAT3 (1 << 29)
> #define DISPC_IRQ_FRAMEDONE3 (1 << 30)
>
> +struct omap_drm_private;
> struct omap_dss_device;
> struct dss_lcd_mgr_config;
> struct snd_aes_iec958;
> @@ -635,25 +636,35 @@ struct device_node *dss_of_port_get_parent_device(struct device_node *port);
> u32 dss_of_port_get_port_number(struct device_node *port);
>
> struct dss_mgr_ops {
> - int (*connect)(enum omap_channel channel,
> - struct omap_dss_device *dst);
> - void (*disconnect)(enum omap_channel channel,
> - struct omap_dss_device *dst);
> -
> - void (*start_update)(enum omap_channel channel);
> - int (*enable)(enum omap_channel channel);
> - void (*disable)(enum omap_channel channel);
> - void (*set_timings)(enum omap_channel channel,
> - const struct videomode *vm);
> - void (*set_lcd_config)(enum omap_channel channel,
> - const struct dss_lcd_mgr_config *config);
> - int (*register_framedone_handler)(enum omap_channel channel,
> + int (*connect)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + struct omap_dss_device *dst);
> + void (*disconnect)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + struct omap_dss_device *dst);
> +
> + void (*start_update)(struct omap_drm_private *priv,
> + enum omap_channel channel);
> + int (*enable)(struct omap_drm_private *priv,
> + enum omap_channel channel);
> + void (*disable)(struct omap_drm_private *priv,
> + enum omap_channel channel);
> + void (*set_timings)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + const struct videomode *vm);
> + void (*set_lcd_config)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> + const struct dss_lcd_mgr_config *config);
> + int (*register_framedone_handler)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> void (*handler)(void *), void *data);
> - void (*unregister_framedone_handler)(enum omap_channel channel,
> + void (*unregister_framedone_handler)(struct omap_drm_private *priv,
> + enum omap_channel channel,
> void (*handler)(void *), void *data);
> };
>
> -int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops);
> +int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops,
> + struct omap_drm_private *priv);
> void dss_uninstall_mgr_ops(void);
>
> int dss_mgr_connect(struct omap_dss_device *dssdev,
> diff --git a/drivers/gpu/drm/omapdrm/dss/output.c b/drivers/gpu/drm/omapdrm/dss/output.c
> index 9ff29dea28ce..96b9d4cd505f 100644
> --- a/drivers/gpu/drm/omapdrm/dss/output.c
> +++ b/drivers/gpu/drm/omapdrm/dss/output.c
> @@ -170,13 +170,16 @@ struct omap_dss_device *omapdss_find_output_from_display(struct omap_dss_device
> EXPORT_SYMBOL(omapdss_find_output_from_display);
>
> static const struct dss_mgr_ops *dss_mgr_ops;
> +static struct omap_drm_private *dss_mgr_ops_priv;
>
> -int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops)
> +int dss_install_mgr_ops(const struct dss_mgr_ops *mgr_ops,
> + struct omap_drm_private *priv)
> {
> if (dss_mgr_ops)
> return -EBUSY;
>
> dss_mgr_ops = mgr_ops;
> + dss_mgr_ops_priv = priv;
>
> return 0;
> }
> @@ -185,58 +188,62 @@ EXPORT_SYMBOL(dss_install_mgr_ops);
> void dss_uninstall_mgr_ops(void)
> {
> dss_mgr_ops = NULL;
> + dss_mgr_ops_priv = NULL;
> }
> EXPORT_SYMBOL(dss_uninstall_mgr_ops);
>
> int dss_mgr_connect(struct omap_dss_device *dssdev, struct omap_dss_device *dst)
> {
> - return dss_mgr_ops->connect(dssdev->dispc_channel, dst);
> + return dss_mgr_ops->connect(dss_mgr_ops_priv,
> + dssdev->dispc_channel, dst);
> }
> EXPORT_SYMBOL(dss_mgr_connect);
>
> void dss_mgr_disconnect(struct omap_dss_device *dssdev,
> struct omap_dss_device *dst)
> {
> - dss_mgr_ops->disconnect(dssdev->dispc_channel, dst);
> + dss_mgr_ops->disconnect(dss_mgr_ops_priv, dssdev->dispc_channel, dst);
> }
> EXPORT_SYMBOL(dss_mgr_disconnect);
>
> void dss_mgr_set_timings(struct omap_dss_device *dssdev,
> const struct videomode *vm)
> {
> - dss_mgr_ops->set_timings(dssdev->dispc_channel, vm);
> + dss_mgr_ops->set_timings(dss_mgr_ops_priv, dssdev->dispc_channel, vm);
> }
> EXPORT_SYMBOL(dss_mgr_set_timings);
>
> void dss_mgr_set_lcd_config(struct omap_dss_device *dssdev,
> const struct dss_lcd_mgr_config *config)
> {
> - dss_mgr_ops->set_lcd_config(dssdev->dispc_channel, config);
> + dss_mgr_ops->set_lcd_config(dss_mgr_ops_priv,
> + dssdev->dispc_channel, config);
> }
> EXPORT_SYMBOL(dss_mgr_set_lcd_config);
>
> int dss_mgr_enable(struct omap_dss_device *dssdev)
> {
> - return dss_mgr_ops->enable(dssdev->dispc_channel);
> + return dss_mgr_ops->enable(dss_mgr_ops_priv, dssdev->dispc_channel);
> }
> EXPORT_SYMBOL(dss_mgr_enable);
>
> void dss_mgr_disable(struct omap_dss_device *dssdev)
> {
> - dss_mgr_ops->disable(dssdev->dispc_channel);
> + dss_mgr_ops->disable(dss_mgr_ops_priv, dssdev->dispc_channel);
> }
> EXPORT_SYMBOL(dss_mgr_disable);
>
> void dss_mgr_start_update(struct omap_dss_device *dssdev)
> {
> - dss_mgr_ops->start_update(dssdev->dispc_channel);
> + dss_mgr_ops->start_update(dss_mgr_ops_priv, dssdev->dispc_channel);
> }
> EXPORT_SYMBOL(dss_mgr_start_update);
>
> int dss_mgr_register_framedone_handler(struct omap_dss_device *dssdev,
> void (*handler)(void *), void *data)
> {
> - return dss_mgr_ops->register_framedone_handler(dssdev->dispc_channel,
> + return dss_mgr_ops->register_framedone_handler(dss_mgr_ops_priv,
> + dssdev->dispc_channel,
> handler, data);
> }
> EXPORT_SYMBOL(dss_mgr_register_framedone_handler);
> @@ -244,7 +251,8 @@ EXPORT_SYMBOL(dss_mgr_register_framedone_handler);
> void dss_mgr_unregister_framedone_handler(struct omap_dss_device *dssdev,
> void (*handler)(void *), void *data)
> {
> - dss_mgr_ops->unregister_framedone_handler(dssdev->dispc_channel,
> + dss_mgr_ops->unregister_framedone_handler(dss_mgr_ops_priv,
> + dssdev->dispc_channel,
> handler, data);
> }
> EXPORT_SYMBOL(dss_mgr_unregister_framedone_handler);
> diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.c b/drivers/gpu/drm/omapdrm/omap_crtc.c
> index 95615a86e9f7..61d8d17a4243 100644
> --- a/drivers/gpu/drm/omapdrm/omap_crtc.c
> +++ b/drivers/gpu/drm/omapdrm/omap_crtc.c
> @@ -113,7 +113,8 @@ static struct omap_crtc *omap_crtcs[8];
> static struct omap_dss_device *omap_crtc_output[8];
>
> /* we can probably ignore these until we support command-mode panels: */
> -static int omap_crtc_dss_connect(enum omap_channel channel,
> +static int omap_crtc_dss_connect(struct omap_drm_private *priv,
> + enum omap_channel channel,
> struct omap_dss_device *dst)
> {
> const struct dispc_ops *dispc_ops = dispc_get_ops();
> @@ -130,14 +131,16 @@ static int omap_crtc_dss_connect(enum omap_channel channel,
> return 0;
> }
>
> -static void omap_crtc_dss_disconnect(enum omap_channel channel,
> +static void omap_crtc_dss_disconnect(struct omap_drm_private *priv,
> + enum omap_channel channel,
> struct omap_dss_device *dst)
> {
> omap_crtc_output[channel] = NULL;
> dst->dispc_channel_connected = false;
> }
>
> -static void omap_crtc_dss_start_update(enum omap_channel channel)
> +static void omap_crtc_dss_start_update(struct omap_drm_private *priv,
> + enum omap_channel channel)
> {
> }
>
> @@ -207,10 +210,10 @@ static void omap_crtc_set_enabled(struct drm_crtc *crtc, bool enable)
> }
>
>
> -static int omap_crtc_dss_enable(enum omap_channel channel)
> +static int omap_crtc_dss_enable(struct omap_drm_private *priv,
> + enum omap_channel channel)
> {
> struct omap_crtc *omap_crtc = omap_crtcs[channel];
> - struct omap_drm_private *priv = omap_crtc->base.dev->dev_private;
>
> priv->dispc_ops->mgr_set_timings(omap_crtc->channel, &omap_crtc->vm);
> omap_crtc_set_enabled(&omap_crtc->base, true);
> @@ -218,14 +221,16 @@ static int omap_crtc_dss_enable(enum omap_channel channel)
> return 0;
> }
>
> -static void omap_crtc_dss_disable(enum omap_channel channel)
> +static void omap_crtc_dss_disable(struct omap_drm_private *priv,
> + enum omap_channel channel)
> {
> struct omap_crtc *omap_crtc = omap_crtcs[channel];
>
> omap_crtc_set_enabled(&omap_crtc->base, false);
> }
>
> -static void omap_crtc_dss_set_timings(enum omap_channel channel,
> +static void omap_crtc_dss_set_timings(struct omap_drm_private *priv,
> + enum omap_channel channel,
> const struct videomode *vm)
> {
> struct omap_crtc *omap_crtc = omap_crtcs[channel];
> @@ -233,25 +238,25 @@ static void omap_crtc_dss_set_timings(enum omap_channel channel,
> omap_crtc->vm = *vm;
> }
>
> -static void omap_crtc_dss_set_lcd_config(enum omap_channel channel,
> +static void omap_crtc_dss_set_lcd_config(struct omap_drm_private *priv,
> + enum omap_channel channel,
> const struct dss_lcd_mgr_config *config)
> {
> struct omap_crtc *omap_crtc = omap_crtcs[channel];
> - struct omap_drm_private *priv = omap_crtc->base.dev->dev_private;
>
> DBG("%s", omap_crtc->name);
> priv->dispc_ops->mgr_set_lcd_config(omap_crtc->channel, config);
> }
>
> static int omap_crtc_dss_register_framedone(
> - enum omap_channel channel,
> + struct omap_drm_private *priv, enum omap_channel channel,
> void (*handler)(void *), void *data)
> {
> return 0;
> }
>
> static void omap_crtc_dss_unregister_framedone(
> - enum omap_channel channel,
> + struct omap_drm_private *priv, enum omap_channel channel,
> void (*handler)(void *), void *data)
> {
> }
> @@ -669,11 +674,11 @@ static const char *channel_names[] = {
> [OMAP_DSS_CHANNEL_LCD3] = "lcd3",
> };
>
> -void omap_crtc_pre_init(void)
> +void omap_crtc_pre_init(struct omap_drm_private *priv)
> {
> memset(omap_crtcs, 0, sizeof(omap_crtcs));
>
> - dss_install_mgr_ops(&mgr_ops);
> + dss_install_mgr_ops(&mgr_ops, priv);
> }
>
> void omap_crtc_pre_uninit(void)
> diff --git a/drivers/gpu/drm/omapdrm/omap_crtc.h b/drivers/gpu/drm/omapdrm/omap_crtc.h
> index 7f01e730a050..eaab2d7f0324 100644
> --- a/drivers/gpu/drm/omapdrm/omap_crtc.h
> +++ b/drivers/gpu/drm/omapdrm/omap_crtc.h
> @@ -32,7 +32,7 @@ struct videomode;
>
> struct videomode *omap_crtc_timings(struct drm_crtc *crtc);
> enum omap_channel omap_crtc_channel(struct drm_crtc *crtc);
> -void omap_crtc_pre_init(void);
> +void omap_crtc_pre_init(struct omap_drm_private *priv);
> void omap_crtc_pre_uninit(void);
> struct drm_crtc *omap_crtc_init(struct drm_device *dev,
> struct drm_plane *plane, struct omap_dss_device *dssdev);
> diff --git a/drivers/gpu/drm/omapdrm/omap_drv.c b/drivers/gpu/drm/omapdrm/omap_drv.c
> index b571cc04e08d..39e78f765f7e 100644
> --- a/drivers/gpu/drm/omapdrm/omap_drv.c
> +++ b/drivers/gpu/drm/omapdrm/omap_drv.c
> @@ -521,7 +521,7 @@ static int omapdrm_init(struct omap_drm_private *priv, struct device *dev)
>
> priv->dev = dev;
>
> - omap_crtc_pre_init();
> + omap_crtc_pre_init(priv);
>
> ret = omap_connect_dssdevs();
> if (ret)
> --
> Regards,
>
> Laurent Pinchart
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
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