Den 26.03.2019 21.48, skrev Daniel Vetter:
> On Tue, Mar 26, 2019 at 06:55:33PM +0100, Noralf Trønnes wrote:
>> Prepare for moving drm_fb_helper modesetting code to drm_client.
>> drm_client will be linked to drm.ko, so move
>> __drm_atomic_helper_disable_plane() and __drm_atomic_helper_set_config()
>> out of drm_kms_helper.ko.
>>
>> While at it, fix two checkpatch complaints:
>> - WARNING: Block comments use a trailing */ on a separate line
>> - CHECK: Alignment should match open parenthesis
>>
>> Signed-off-by: Noralf Trønnes <nor...@tronnes.org>
> 
> Triggers a bit my midlayer ocd, but I can't come up with a better idea
> either.
> 
> Reviewed-by: Daniel Vetter <daniel.vet...@ffwll.ch>
> 

The Intel CI informed me that this patch didn't apply.

Turns out there's a patch in drm-next by Sean:

drm: Merge __drm_atomic_helper_disable_all() into
drm_atomic_helper_disable_all()

https://cgit.freedesktop.org/drm/drm/commit?id=37406a60fac7de336dec331a8707a94462ac5a5e

Should I move the whole function with the kerneldoc to drm_atomic.c, or
should I keep the doc and function in drm_atomic_helper.c and just
recreate __drm_atomic_helper_disable_all() and call that ?

Noralf.

>> ---
>>  drivers/gpu/drm/drm_atomic.c        | 168 ++++++++++++++++++++++++++++
>>  drivers/gpu/drm/drm_atomic_helper.c | 164 ---------------------------
>>  drivers/gpu/drm/drm_crtc_internal.h |   5 +
>>  include/drm/drm_atomic_helper.h     |   4 -
>>  4 files changed, 173 insertions(+), 168 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
>> index 5eb40130fafb..c3a9ffbf2310 100644
>> --- a/drivers/gpu/drm/drm_atomic.c
>> +++ b/drivers/gpu/drm/drm_atomic.c
>> @@ -1130,6 +1130,174 @@ int drm_atomic_nonblocking_commit(struct 
>> drm_atomic_state *state)
>>  }
>>  EXPORT_SYMBOL(drm_atomic_nonblocking_commit);
>>  
>> +/* just used from drm-client and atomic-helper: */
>> +int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
>> +                                  struct drm_plane_state *plane_state)
>> +{
>> +    int ret;
>> +
>> +    ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
>> +    if (ret != 0)
>> +            return ret;
>> +
>> +    drm_atomic_set_fb_for_plane(plane_state, NULL);
>> +    plane_state->crtc_x = 0;
>> +    plane_state->crtc_y = 0;
>> +    plane_state->crtc_w = 0;
>> +    plane_state->crtc_h = 0;
>> +    plane_state->src_x = 0;
>> +    plane_state->src_y = 0;
>> +    plane_state->src_w = 0;
>> +    plane_state->src_h = 0;
>> +
>> +    return 0;
>> +}
>> +EXPORT_SYMBOL(__drm_atomic_helper_disable_plane);
>> +
>> +static int update_output_state(struct drm_atomic_state *state,
>> +                           struct drm_mode_set *set)
>> +{
>> +    struct drm_device *dev = set->crtc->dev;
>> +    struct drm_crtc *crtc;
>> +    struct drm_crtc_state *new_crtc_state;
>> +    struct drm_connector *connector;
>> +    struct drm_connector_state *new_conn_state;
>> +    int ret, i;
>> +
>> +    ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
>> +                           state->acquire_ctx);
>> +    if (ret)
>> +            return ret;
>> +
>> +    /* First disable all connectors on the target crtc. */
>> +    ret = drm_atomic_add_affected_connectors(state, set->crtc);
>> +    if (ret)
>> +            return ret;
>> +
>> +    for_each_new_connector_in_state(state, connector, new_conn_state, i) {
>> +            if (new_conn_state->crtc == set->crtc) {
>> +                    ret = drm_atomic_set_crtc_for_connector(new_conn_state,
>> +                                                            NULL);
>> +                    if (ret)
>> +                            return ret;
>> +
>> +                    /* Make sure legacy setCrtc always re-trains */
>> +                    new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
>> +            }
>> +    }
>> +
>> +    /* Then set all connectors from set->connectors on the target crtc */
>> +    for (i = 0; i < set->num_connectors; i++) {
>> +            new_conn_state = drm_atomic_get_connector_state(state,
>> +                                                            
>> set->connectors[i]);
>> +            if (IS_ERR(new_conn_state))
>> +                    return PTR_ERR(new_conn_state);
>> +
>> +            ret = drm_atomic_set_crtc_for_connector(new_conn_state,
>> +                                                    set->crtc);
>> +            if (ret)
>> +                    return ret;
>> +    }
>> +
>> +    for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
>> +            /*
>> +             * Don't update ->enable for the CRTC in the set_config request,
>> +             * since a mismatch would indicate a bug in the upper layers.
>> +             * The actual modeset code later on will catch any
>> +             * inconsistencies here.
>> +             */
>> +            if (crtc == set->crtc)
>> +                    continue;
>> +
>> +            if (!new_crtc_state->connector_mask) {
>> +                    ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
>> +                                                            NULL);
>> +                    if (ret < 0)
>> +                            return ret;
>> +
>> +                    new_crtc_state->active = false;
>> +            }
>> +    }
>> +
>> +    return 0;
>> +}
>> +
>> +/* just used from drm-client and atomic-helper: */
>> +int __drm_atomic_helper_set_config(struct drm_mode_set *set,
>> +                               struct drm_atomic_state *state)
>> +{
>> +    struct drm_crtc_state *crtc_state;
>> +    struct drm_plane_state *primary_state;
>> +    struct drm_crtc *crtc = set->crtc;
>> +    int hdisplay, vdisplay;
>> +    int ret;
>> +
>> +    crtc_state = drm_atomic_get_crtc_state(state, crtc);
>> +    if (IS_ERR(crtc_state))
>> +            return PTR_ERR(crtc_state);
>> +
>> +    primary_state = drm_atomic_get_plane_state(state, crtc->primary);
>> +    if (IS_ERR(primary_state))
>> +            return PTR_ERR(primary_state);
>> +
>> +    if (!set->mode) {
>> +            WARN_ON(set->fb);
>> +            WARN_ON(set->num_connectors);
>> +
>> +            ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
>> +            if (ret != 0)
>> +                    return ret;
>> +
>> +            crtc_state->active = false;
>> +
>> +            ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
>> +            if (ret != 0)
>> +                    return ret;
>> +
>> +            drm_atomic_set_fb_for_plane(primary_state, NULL);
>> +
>> +            goto commit;
>> +    }
>> +
>> +    WARN_ON(!set->fb);
>> +    WARN_ON(!set->num_connectors);
>> +
>> +    ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
>> +    if (ret != 0)
>> +            return ret;
>> +
>> +    crtc_state->active = true;
>> +
>> +    ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
>> +    if (ret != 0)
>> +            return ret;
>> +
>> +    drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
>> +
>> +    drm_atomic_set_fb_for_plane(primary_state, set->fb);
>> +    primary_state->crtc_x = 0;
>> +    primary_state->crtc_y = 0;
>> +    primary_state->crtc_w = hdisplay;
>> +    primary_state->crtc_h = vdisplay;
>> +    primary_state->src_x = set->x << 16;
>> +    primary_state->src_y = set->y << 16;
>> +    if (drm_rotation_90_or_270(primary_state->rotation)) {
>> +            primary_state->src_w = vdisplay << 16;
>> +            primary_state->src_h = hdisplay << 16;
>> +    } else {
>> +            primary_state->src_w = hdisplay << 16;
>> +            primary_state->src_h = vdisplay << 16;
>> +    }
>> +
>> +commit:
>> +    ret = update_output_state(state, set);
>> +    if (ret)
>> +            return ret;
>> +
>> +    return 0;
>> +}
>> +EXPORT_SYMBOL(__drm_atomic_helper_set_config);
>> +
>>  void drm_atomic_print_state(const struct drm_atomic_state *state)
>>  {
>>      struct drm_printer p = drm_info_printer(state->dev->dev);
>> diff --git a/drivers/gpu/drm/drm_atomic_helper.c 
>> b/drivers/gpu/drm/drm_atomic_helper.c
>> index 2453678d1186..b0d960da53cb 100644
>> --- a/drivers/gpu/drm/drm_atomic_helper.c
>> +++ b/drivers/gpu/drm/drm_atomic_helper.c
>> @@ -2831,95 +2831,6 @@ int drm_atomic_helper_disable_plane(struct drm_plane 
>> *plane,
>>  }
>>  EXPORT_SYMBOL(drm_atomic_helper_disable_plane);
>>  
>> -/* just used from fb-helper and atomic-helper: */
>> -int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
>> -            struct drm_plane_state *plane_state)
>> -{
>> -    int ret;
>> -
>> -    ret = drm_atomic_set_crtc_for_plane(plane_state, NULL);
>> -    if (ret != 0)
>> -            return ret;
>> -
>> -    drm_atomic_set_fb_for_plane(plane_state, NULL);
>> -    plane_state->crtc_x = 0;
>> -    plane_state->crtc_y = 0;
>> -    plane_state->crtc_w = 0;
>> -    plane_state->crtc_h = 0;
>> -    plane_state->src_x = 0;
>> -    plane_state->src_y = 0;
>> -    plane_state->src_w = 0;
>> -    plane_state->src_h = 0;
>> -
>> -    return 0;
>> -}
>> -
>> -static int update_output_state(struct drm_atomic_state *state,
>> -                           struct drm_mode_set *set)
>> -{
>> -    struct drm_device *dev = set->crtc->dev;
>> -    struct drm_crtc *crtc;
>> -    struct drm_crtc_state *new_crtc_state;
>> -    struct drm_connector *connector;
>> -    struct drm_connector_state *new_conn_state;
>> -    int ret, i;
>> -
>> -    ret = drm_modeset_lock(&dev->mode_config.connection_mutex,
>> -                           state->acquire_ctx);
>> -    if (ret)
>> -            return ret;
>> -
>> -    /* First disable all connectors on the target crtc. */
>> -    ret = drm_atomic_add_affected_connectors(state, set->crtc);
>> -    if (ret)
>> -            return ret;
>> -
>> -    for_each_new_connector_in_state(state, connector, new_conn_state, i) {
>> -            if (new_conn_state->crtc == set->crtc) {
>> -                    ret = drm_atomic_set_crtc_for_connector(new_conn_state,
>> -                                                            NULL);
>> -                    if (ret)
>> -                            return ret;
>> -
>> -                    /* Make sure legacy setCrtc always re-trains */
>> -                    new_conn_state->link_status = DRM_LINK_STATUS_GOOD;
>> -            }
>> -    }
>> -
>> -    /* Then set all connectors from set->connectors on the target crtc */
>> -    for (i = 0; i < set->num_connectors; i++) {
>> -            new_conn_state = drm_atomic_get_connector_state(state,
>> -                                                        set->connectors[i]);
>> -            if (IS_ERR(new_conn_state))
>> -                    return PTR_ERR(new_conn_state);
>> -
>> -            ret = drm_atomic_set_crtc_for_connector(new_conn_state,
>> -                                                    set->crtc);
>> -            if (ret)
>> -                    return ret;
>> -    }
>> -
>> -    for_each_new_crtc_in_state(state, crtc, new_crtc_state, i) {
>> -            /* Don't update ->enable for the CRTC in the set_config request,
>> -             * since a mismatch would indicate a bug in the upper layers.
>> -             * The actual modeset code later on will catch any
>> -             * inconsistencies here. */
>> -            if (crtc == set->crtc)
>> -                    continue;
>> -
>> -            if (!new_crtc_state->connector_mask) {
>> -                    ret = drm_atomic_set_mode_prop_for_crtc(new_crtc_state,
>> -                                                            NULL);
>> -                    if (ret < 0)
>> -                            return ret;
>> -
>> -                    new_crtc_state->active = false;
>> -            }
>> -    }
>> -
>> -    return 0;
>> -}
>> -
>>  /**
>>   * drm_atomic_helper_set_config - set a new config from userspace
>>   * @set: mode set configuration
>> @@ -2964,81 +2875,6 @@ int drm_atomic_helper_set_config(struct drm_mode_set 
>> *set,
>>  }
>>  EXPORT_SYMBOL(drm_atomic_helper_set_config);
>>  
>> -/* just used from fb-helper and atomic-helper: */
>> -int __drm_atomic_helper_set_config(struct drm_mode_set *set,
>> -            struct drm_atomic_state *state)
>> -{
>> -    struct drm_crtc_state *crtc_state;
>> -    struct drm_plane_state *primary_state;
>> -    struct drm_crtc *crtc = set->crtc;
>> -    int hdisplay, vdisplay;
>> -    int ret;
>> -
>> -    crtc_state = drm_atomic_get_crtc_state(state, crtc);
>> -    if (IS_ERR(crtc_state))
>> -            return PTR_ERR(crtc_state);
>> -
>> -    primary_state = drm_atomic_get_plane_state(state, crtc->primary);
>> -    if (IS_ERR(primary_state))
>> -            return PTR_ERR(primary_state);
>> -
>> -    if (!set->mode) {
>> -            WARN_ON(set->fb);
>> -            WARN_ON(set->num_connectors);
>> -
>> -            ret = drm_atomic_set_mode_for_crtc(crtc_state, NULL);
>> -            if (ret != 0)
>> -                    return ret;
>> -
>> -            crtc_state->active = false;
>> -
>> -            ret = drm_atomic_set_crtc_for_plane(primary_state, NULL);
>> -            if (ret != 0)
>> -                    return ret;
>> -
>> -            drm_atomic_set_fb_for_plane(primary_state, NULL);
>> -
>> -            goto commit;
>> -    }
>> -
>> -    WARN_ON(!set->fb);
>> -    WARN_ON(!set->num_connectors);
>> -
>> -    ret = drm_atomic_set_mode_for_crtc(crtc_state, set->mode);
>> -    if (ret != 0)
>> -            return ret;
>> -
>> -    crtc_state->active = true;
>> -
>> -    ret = drm_atomic_set_crtc_for_plane(primary_state, crtc);
>> -    if (ret != 0)
>> -            return ret;
>> -
>> -    drm_mode_get_hv_timing(set->mode, &hdisplay, &vdisplay);
>> -
>> -    drm_atomic_set_fb_for_plane(primary_state, set->fb);
>> -    primary_state->crtc_x = 0;
>> -    primary_state->crtc_y = 0;
>> -    primary_state->crtc_w = hdisplay;
>> -    primary_state->crtc_h = vdisplay;
>> -    primary_state->src_x = set->x << 16;
>> -    primary_state->src_y = set->y << 16;
>> -    if (drm_rotation_90_or_270(primary_state->rotation)) {
>> -            primary_state->src_w = vdisplay << 16;
>> -            primary_state->src_h = hdisplay << 16;
>> -    } else {
>> -            primary_state->src_w = hdisplay << 16;
>> -            primary_state->src_h = vdisplay << 16;
>> -    }
>> -
>> -commit:
>> -    ret = update_output_state(state, set);
>> -    if (ret)
>> -            return ret;
>> -
>> -    return 0;
>> -}
>> -
>>  static int __drm_atomic_helper_disable_all(struct drm_device *dev,
>>                                         struct drm_modeset_acquire_ctx *ctx,
>>                                         bool clean_old_fbs)
>> diff --git a/drivers/gpu/drm/drm_crtc_internal.h 
>> b/drivers/gpu/drm/drm_crtc_internal.h
>> index 216f2a9ee3d4..22a63a544ec7 100644
>> --- a/drivers/gpu/drm/drm_crtc_internal.h
>> +++ b/drivers/gpu/drm/drm_crtc_internal.h
>> @@ -207,6 +207,11 @@ struct drm_minor;
>>  int drm_atomic_debugfs_init(struct drm_minor *minor);
>>  #endif
>>  
>> +int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
>> +                                  struct drm_plane_state *plane_state);
>> +int __drm_atomic_helper_set_config(struct drm_mode_set *set,
>> +                               struct drm_atomic_state *state);
>> +
>>  void drm_atomic_print_state(const struct drm_atomic_state *state);
>>  
>>  /* drm_atomic_uapi.c */
>> diff --git a/include/drm/drm_atomic_helper.h 
>> b/include/drm/drm_atomic_helper.h
>> index 58214be3bf3d..bf4e07141d81 100644
>> --- a/include/drm/drm_atomic_helper.h
>> +++ b/include/drm/drm_atomic_helper.h
>> @@ -117,12 +117,8 @@ int drm_atomic_helper_update_plane(struct drm_plane 
>> *plane,
>>                                 struct drm_modeset_acquire_ctx *ctx);
>>  int drm_atomic_helper_disable_plane(struct drm_plane *plane,
>>                                  struct drm_modeset_acquire_ctx *ctx);
>> -int __drm_atomic_helper_disable_plane(struct drm_plane *plane,
>> -            struct drm_plane_state *plane_state);
>>  int drm_atomic_helper_set_config(struct drm_mode_set *set,
>>                               struct drm_modeset_acquire_ctx *ctx);
>> -int __drm_atomic_helper_set_config(struct drm_mode_set *set,
>> -            struct drm_atomic_state *state);
>>  
>>  int drm_atomic_helper_disable_all(struct drm_device *dev,
>>                                struct drm_modeset_acquire_ctx *ctx);
>> -- 
>> 2.20.1
>>
>> _______________________________________________
>> Intel-gfx mailing list
>> Intel-gfx@lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
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