drm: Extract drm_color_mgmt.[hc]

For both the new degamm/lut/gamma atomic combo, and the old legacy
gamma tables.

Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1474448370-32227-5-git-send-email-daniel.vetter@ffwll.ch

1 files changed, 0 insertions, 220 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 3ac81019ae6f..2d7bedf28647 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -904,181 +904,6 @@ int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj,
 }
 
 /**
- * drm_mode_crtc_set_gamma_size - set the gamma table size
- * @crtc: CRTC to set the gamma table size for
- * @gamma_size: size of the gamma table
- *
- * Drivers which support gamma tables should set this to the supported gamma
- * table size when initializing the CRTC. Currently the drm core only supports a
- * fixed gamma table size.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc,
-				 int gamma_size)
-{
-	uint16_t *r_base, *g_base, *b_base;
-	int i;
-
-	crtc->gamma_size = gamma_size;
-
-	crtc->gamma_store = kcalloc(gamma_size, sizeof(uint16_t) * 3,
-				    GFP_KERNEL);
-	if (!crtc->gamma_store) {
-		crtc->gamma_size = 0;
-		return -ENOMEM;
-	}
-
-	r_base = crtc->gamma_store;
-	g_base = r_base + gamma_size;
-	b_base = g_base + gamma_size;
-	for (i = 0; i < gamma_size; i++) {
-		r_base[i] = i << 8;
-		g_base[i] = i << 8;
-		b_base[i] = i << 8;
-	}
-
-
-	return 0;
-}
-EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size);
-
-/**
- * drm_mode_gamma_set_ioctl - set the gamma table
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Set the gamma table of a CRTC to the one passed in by the user. Userspace can
- * inquire the required gamma table size through drm_mode_gamma_get_ioctl.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_gamma_set_ioctl(struct drm_device *dev,
-			     void *data, struct drm_file *file_priv)
-{
-	struct drm_mode_crtc_lut *crtc_lut = data;
-	struct drm_crtc *crtc;
-	void *r_base, *g_base, *b_base;
-	int size;
-	int ret = 0;
-
-	if (!drm_core_check_feature(dev, DRIVER_MODESET))
-		return -EINVAL;
-
-	drm_modeset_lock_all(dev);
-	crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
-	if (!crtc) {
-		ret = -ENOENT;
-		goto out;
-	}
-
-	if (crtc->funcs->gamma_set == NULL) {
-		ret = -ENOSYS;
-		goto out;
-	}
-
-	/* memcpy into gamma store */
-	if (crtc_lut->gamma_size != crtc->gamma_size) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	size = crtc_lut->gamma_size * (sizeof(uint16_t));
-	r_base = crtc->gamma_store;
-	if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	g_base = r_base + size;
-	if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	b_base = g_base + size;
-	if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	ret = crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size);
-
-out:
-	drm_modeset_unlock_all(dev);
-	return ret;
-
-}
-
-/**
- * drm_mode_gamma_get_ioctl - get the gamma table
- * @dev: DRM device
- * @data: ioctl data
- * @file_priv: DRM file info
- *
- * Copy the current gamma table into the storage provided. This also provides
- * the gamma table size the driver expects, which can be used to size the
- * allocated storage.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, negative errno on failure.
- */
-int drm_mode_gamma_get_ioctl(struct drm_device *dev,
-			     void *data, struct drm_file *file_priv)
-{
-	struct drm_mode_crtc_lut *crtc_lut = data;
-	struct drm_crtc *crtc;
-	void *r_base, *g_base, *b_base;
-	int size;
-	int ret = 0;
-
-	if (!drm_core_check_feature(dev, DRIVER_MODESET))
-		return -EINVAL;
-
-	drm_modeset_lock_all(dev);
-	crtc = drm_crtc_find(dev, crtc_lut->crtc_id);
-	if (!crtc) {
-		ret = -ENOENT;
-		goto out;
-	}
-
-	/* memcpy into gamma store */
-	if (crtc_lut->gamma_size != crtc->gamma_size) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	size = crtc_lut->gamma_size * (sizeof(uint16_t));
-	r_base = crtc->gamma_store;
-	if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	g_base = r_base + size;
-	if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-
-	b_base = g_base + size;
-	if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) {
-		ret = -EFAULT;
-		goto out;
-	}
-out:
-	drm_modeset_unlock_all(dev);
-	return ret;
-}
-
-/**
  * drm_mode_config_reset - call ->reset callbacks
  * @dev: drm device
  *
@@ -1436,48 +1261,3 @@ struct drm_tile_group *drm_mode_create_tile_group(struct drm_device *dev,
 	return tg;
 }
 EXPORT_SYMBOL(drm_mode_create_tile_group);
-
-/**
- * drm_crtc_enable_color_mgmt - enable color management properties
- * @crtc: DRM CRTC
- * @degamma_lut_size: the size of the degamma lut (before CSC)
- * @has_ctm: whether to attach ctm_property for CSC matrix
- * @gamma_lut_size: the size of the gamma lut (after CSC)
- *
- * This function lets the driver enable the color correction
- * properties on a CRTC. This includes 3 degamma, csc and gamma
- * properties that userspace can set and 2 size properties to inform
- * the userspace of the lut sizes. Each of the properties are
- * optional. The gamma and degamma properties are only attached if
- * their size is not 0 and ctm_property is only attached if has_ctm is
- * true.
- */
-void drm_crtc_enable_color_mgmt(struct drm_crtc *crtc,
-				uint degamma_lut_size,
-				bool has_ctm,
-				uint gamma_lut_size)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_mode_config *config = &dev->mode_config;
-
-	if (degamma_lut_size) {
-		drm_object_attach_property(&crtc->base,
-					   config->degamma_lut_property, 0);
-		drm_object_attach_property(&crtc->base,
-					   config->degamma_lut_size_property,
-					   degamma_lut_size);
-	}
-
-	if (has_ctm)
-		drm_object_attach_property(&crtc->base,
-					   config->ctm_property, 0);
-
-	if (gamma_lut_size) {
-		drm_object_attach_property(&crtc->base,
-					   config->gamma_lut_property, 0);
-		drm_object_attach_property(&crtc->base,
-					   config->gamma_lut_size_property,
-					   gamma_lut_size);
-	}
-}
-EXPORT_SYMBOL(drm_crtc_enable_color_mgmt);