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Revert "drm: cleanup: drm_modeset_lock_all() --> DRM_MODESET_LOCK_ALL…
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…_BEGIN()"

This reverts commit 7c5f2ee.

This patchset breaks on intel platforms and was previously NACK'd by
Ville.

Cc: Ville Syrjälä <[email protected]>
Cc: Fernando Ramos <[email protected]>
Acked-by: Ville Syrjälä <[email protected]>
Signed-off-by: Sean Paul <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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atseanpaul committed Oct 4, 2021
1 parent e7b4818 commit 76fd2c3
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Showing 4 changed files with 14 additions and 25 deletions.
5 changes: 2 additions & 3 deletions drivers/gpu/drm/drm_client_modeset.c
Original file line number Diff line number Diff line change
Expand Up @@ -1062,10 +1062,9 @@ static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
struct drm_device *dev = client->dev;
struct drm_mode_set *mode_set;
struct drm_plane *plane;
struct drm_modeset_acquire_ctx ctx;
int ret = 0;

DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_modeset_lock_all(dev);
drm_for_each_plane(plane, dev) {
if (plane->type != DRM_PLANE_TYPE_PRIMARY)
drm_plane_force_disable(plane);
Expand Down Expand Up @@ -1094,7 +1093,7 @@ static int drm_client_modeset_commit_legacy(struct drm_client_dev *client)
goto out;
}
out:
DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
drm_modeset_unlock_all(dev);

return ret;
}
Expand Down
18 changes: 6 additions & 12 deletions drivers/gpu/drm/drm_crtc_helper.c
Original file line number Diff line number Diff line change
Expand Up @@ -218,14 +218,11 @@ static void __drm_helper_disable_unused_functions(struct drm_device *dev)
*/
void drm_helper_disable_unused_functions(struct drm_device *dev)
{
struct drm_modeset_acquire_ctx ctx;
int ret;

WARN_ON(drm_drv_uses_atomic_modeset(dev));

DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_modeset_lock_all(dev);
__drm_helper_disable_unused_functions(dev);
DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
drm_modeset_unlock_all(dev);
}
EXPORT_SYMBOL(drm_helper_disable_unused_functions);

Expand Down Expand Up @@ -945,14 +942,12 @@ void drm_helper_resume_force_mode(struct drm_device *dev)
struct drm_crtc *crtc;
struct drm_encoder *encoder;
const struct drm_crtc_helper_funcs *crtc_funcs;
struct drm_modeset_acquire_ctx ctx;
int encoder_dpms;
bool ret;
int err;

WARN_ON(drm_drv_uses_atomic_modeset(dev));

DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, err);
drm_modeset_lock_all(dev);
drm_for_each_crtc(crtc, dev) {

if (!crtc->enabled)
Expand Down Expand Up @@ -987,7 +982,7 @@ void drm_helper_resume_force_mode(struct drm_device *dev)

/* disable the unused connectors while restoring the modesetting */
__drm_helper_disable_unused_functions(dev);
DRM_MODESET_LOCK_ALL_END(dev, ctx, err);
drm_modeset_unlock_all(dev);
}
EXPORT_SYMBOL(drm_helper_resume_force_mode);

Expand All @@ -1007,10 +1002,9 @@ EXPORT_SYMBOL(drm_helper_resume_force_mode);
int drm_helper_force_disable_all(struct drm_device *dev)
{
struct drm_crtc *crtc;
struct drm_modeset_acquire_ctx ctx;
int ret = 0;

DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_modeset_lock_all(dev);
drm_for_each_crtc(crtc, dev)
if (crtc->enabled) {
struct drm_mode_set set = {
Expand All @@ -1022,7 +1016,7 @@ int drm_helper_force_disable_all(struct drm_device *dev)
goto out;
}
out:
DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
drm_modeset_unlock_all(dev);
return ret;
}
EXPORT_SYMBOL(drm_helper_force_disable_all);
10 changes: 4 additions & 6 deletions drivers/gpu/drm/drm_fb_helper.c
Original file line number Diff line number Diff line change
Expand Up @@ -940,11 +940,10 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info)
struct drm_fb_helper *fb_helper = info->par;
struct drm_mode_set *modeset;
struct drm_crtc *crtc;
struct drm_modeset_acquire_ctx ctx;
u16 *r, *g, *b;
int ret = 0;

DRM_MODESET_LOCK_ALL_BEGIN(fb_helper->dev, ctx, 0, ret);
drm_modeset_lock_all(fb_helper->dev);
drm_client_for_each_modeset(modeset, &fb_helper->client) {
crtc = modeset->crtc;
if (!crtc->funcs->gamma_set || !crtc->gamma_size) {
Expand All @@ -971,7 +970,7 @@ static int setcmap_legacy(struct fb_cmap *cmap, struct fb_info *info)
goto out;
}
out:
DRM_MODESET_LOCK_ALL_END(fb_helper->dev, ctx, ret);
drm_modeset_unlock_all(fb_helper->dev);

return ret;
}
Expand Down Expand Up @@ -1442,11 +1441,10 @@ static int pan_display_legacy(struct fb_var_screeninfo *var,
struct drm_fb_helper *fb_helper = info->par;
struct drm_client_dev *client = &fb_helper->client;
struct drm_mode_set *modeset;
struct drm_modeset_acquire_ctx ctx;
int ret = 0;

mutex_lock(&client->modeset_mutex);
DRM_MODESET_LOCK_ALL_BEGIN(fb_helper->dev, ctx, 0, ret);
drm_modeset_lock_all(fb_helper->dev);
drm_client_for_each_modeset(modeset, client) {
modeset->x = var->xoffset;
modeset->y = var->yoffset;
Expand All @@ -1459,7 +1457,7 @@ static int pan_display_legacy(struct fb_var_screeninfo *var,
}
}
}
DRM_MODESET_LOCK_ALL_END(fb_helper->dev, ctx, ret);
drm_modeset_unlock_all(fb_helper->dev);
mutex_unlock(&client->modeset_mutex);

return ret;
Expand Down
6 changes: 2 additions & 4 deletions drivers/gpu/drm/drm_framebuffer.c
Original file line number Diff line number Diff line change
Expand Up @@ -1059,10 +1059,8 @@ static void legacy_remove_fb(struct drm_framebuffer *fb)
struct drm_device *dev = fb->dev;
struct drm_crtc *crtc;
struct drm_plane *plane;
struct drm_modeset_acquire_ctx ctx;
int ret;

DRM_MODESET_LOCK_ALL_BEGIN(dev, ctx, 0, ret);
drm_modeset_lock_all(dev);
/* remove from any CRTC */
drm_for_each_crtc(crtc, dev) {
if (crtc->primary->fb == fb) {
Expand All @@ -1084,7 +1082,7 @@ static void legacy_remove_fb(struct drm_framebuffer *fb)
drm_plane_force_disable(plane);
}
}
DRM_MODESET_LOCK_ALL_END(dev, ctx, ret);
drm_modeset_unlock_all(dev);
}

/**
Expand Down

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