1 files changed, 0 insertions, 145 deletions
diff --git a/drivers/gpu/drm/drm_fb_cma_helper.c b/drivers/gpu/drm/drm_fb_cma_helper.c
deleted file mode 100644
index 69c57273b184..000000000000
--- a/drivers/gpu/drm/drm_fb_cma_helper.c
+++ /dev/null
@@ -1,145 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * drm kms/fb cma (contiguous memory allocator) helper functions
- *
- * Copyright (C) 2012 Analog Devices Inc.
- *   Author: Lars-Peter Clausen <lars@metafoo.de>
- *
- * Based on udl_fbdev.c
- *  Copyright (C) 2012 Red Hat
- */
-
-#include <drm/drm_damage_helper.h>
-#include <drm/drm_fb_cma_helper.h>
-#include <drm/drm_fourcc.h>
-#include <drm/drm_framebuffer.h>
-#include <drm/drm_gem_cma_helper.h>
-#include <drm/drm_gem_framebuffer_helper.h>
-#include <drm/drm_plane.h>
-#include <linux/dma-mapping.h>
-#include <linux/module.h>
-
-/**
- * DOC: framebuffer cma helper functions
- *
- * Provides helper functions for creating a cma (contiguous memory allocator)
- * backed framebuffer.
- *
- * drm_gem_fb_create() is used in the &drm_mode_config_funcs.fb_create
- * callback function to create a cma backed framebuffer.
- */
-
-/**
- * drm_fb_cma_get_gem_obj() - Get CMA GEM object for framebuffer
- * @fb: The framebuffer
- * @plane: Which plane
- *
- * Return the CMA GEM object for given framebuffer.
- *
- * This function will usually be called from the CRTC callback functions.
- */
-struct drm_gem_cma_object *drm_fb_cma_get_gem_obj(struct drm_framebuffer *fb,
-						  unsigned int plane)
-{
-	struct drm_gem_object *gem;
-
-	gem = drm_gem_fb_get_obj(fb, plane);
-	if (!gem)
-		return NULL;
-
-	return to_drm_gem_cma_obj(gem);
-}
-EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_obj);
-
-/**
- * drm_fb_cma_get_gem_addr() - Get physical address for framebuffer, for pixel
- * formats where values are grouped in blocks this will get you the beginning of
- * the block
- * @fb: The framebuffer
- * @state: Which state of drm plane
- * @plane: Which plane
- * Return the CMA GEM address for given framebuffer.
- *
- * This function will usually be called from the PLANE callback functions.
- */
-dma_addr_t drm_fb_cma_get_gem_addr(struct drm_framebuffer *fb,
-				   struct drm_plane_state *state,
-				   unsigned int plane)
-{
-	struct drm_gem_cma_object *obj;
-	dma_addr_t paddr;
-	u8 h_div = 1, v_div = 1;
-	u32 block_w = drm_format_info_block_width(fb->format, plane);
-	u32 block_h = drm_format_info_block_height(fb->format, plane);
-	u32 block_size = fb->format->char_per_block[plane];
-	u32 sample_x;
-	u32 sample_y;
-	u32 block_start_y;
-	u32 num_hblocks;
-
-	obj = drm_fb_cma_get_gem_obj(fb, plane);
-	if (!obj)
-		return 0;
-
-	paddr = obj->paddr + fb->offsets[plane];
-
-	if (plane > 0) {
-		h_div = fb->format->hsub;
-		v_div = fb->format->vsub;
-	}
-
-	sample_x = (state->src_x >> 16) / h_div;
-	sample_y = (state->src_y >> 16) / v_div;
-	block_start_y = (sample_y / block_h) * block_h;
-	num_hblocks = sample_x / block_w;
-
-	paddr += fb->pitches[plane] * block_start_y;
-	paddr += block_size * num_hblocks;
-
-	return paddr;
-}
-EXPORT_SYMBOL_GPL(drm_fb_cma_get_gem_addr);
-
-/**
- * drm_fb_cma_sync_non_coherent - Sync GEM object to non-coherent backing
- *	memory
- * @drm: DRM device
- * @old_state: Old plane state
- * @state: New plane state
- *
- * This function can be used by drivers that use damage clips and have
- * CMA GEM objects backed by non-coherent memory. Calling this function
- * in a plane's .atomic_update ensures that all the data in the backing
- * memory have been written to RAM.
- */
-void drm_fb_cma_sync_non_coherent(struct drm_device *drm,
-				  struct drm_plane_state *old_state,
-				  struct drm_plane_state *state)
-{
-	const struct drm_format_info *finfo = state->fb->format;
-	struct drm_atomic_helper_damage_iter iter;
-	const struct drm_gem_cma_object *cma_obj;
-	unsigned int offset, i;
-	struct drm_rect clip;
-	dma_addr_t daddr;
-	size_t nb_bytes;
-
-	for (i = 0; i < finfo->num_planes; i++) {
-		cma_obj = drm_fb_cma_get_gem_obj(state->fb, i);
-		if (!cma_obj->map_noncoherent)
-			continue;
-
-		daddr = drm_fb_cma_get_gem_addr(state->fb, state, i);
-		drm_atomic_helper_damage_iter_init(&iter, old_state, state);
-
-		drm_atomic_for_each_plane_damage(&iter, &clip) {
-			/* Ignore x1/x2 values, invalidate complete lines */
-			offset = clip.y1 * state->fb->pitches[i];
-
-			nb_bytes = (clip.y2 - clip.y1) * state->fb->pitches[i];
-			dma_sync_single_for_device(drm->dev, daddr + offset,
-						   nb_bytes, DMA_TO_DEVICE);
-		}
-	}
-}
-EXPORT_SYMBOL_GPL(drm_fb_cma_sync_non_coherent);