Remove i915 driver sources from linux-core

Intel developers have stated, that their DRM development continues
elsewhere in some Linux kernel trees. This makes the code in drm.git
just dead weight. This removal allows further cleanup of compatibility
code.

shared-core and bsd-core are left untouched this time.

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Acked-by: Eric Anholt <eric@anholt.net>

1 files changed, 0 insertions, 303 deletions

diff --git a/linux-core/i915_buffer.c b/linux-core/i915_buffer.c
deleted file mode 100644
index 8d991c42..00000000
--- a/linux-core/i915_buffer.c
+++ /dev/null
@@ -1,303 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- *
- **************************************************************************/
-/*
- * Authors: Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#include "drmP.h"
-#include "i915_drm.h"
-#include "i915_drv.h"
-
-struct drm_ttm_backend *i915_create_ttm_backend_entry(struct drm_device *dev)
-{
-	return drm_agp_init_ttm(dev);
-}
-
-int i915_fence_type(struct drm_buffer_object *bo,
-		     uint32_t *fclass,
-		     uint32_t *type)
-{
-	if (bo->mem.proposed_flags & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
-		*type = 3;
-	else
-		*type = 1;
-	return 0;
-}
-
-int i915_invalidate_caches(struct drm_device *dev, uint64_t flags)
-{
-	/*
-	 * FIXME: Only emit once per batchbuffer submission.
-	 */
-
-	uint32_t flush_cmd = MI_NO_WRITE_FLUSH;
-
-	if (flags & DRM_BO_FLAG_READ)
-		flush_cmd |= MI_READ_FLUSH;
-	if (flags & DRM_BO_FLAG_EXE)
-		flush_cmd |= MI_EXE_FLUSH;
-
-	return i915_emit_mi_flush(dev, flush_cmd);
-}
-
-int i915_init_mem_type(struct drm_device *dev, uint32_t type,
-		       struct drm_mem_type_manager *man)
-{
-	switch (type) {
-	case DRM_BO_MEM_LOCAL:
-		man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
-		    _DRM_FLAG_MEMTYPE_CACHED;
-		man->drm_bus_maptype = 0;
-		man->gpu_offset = 0;
-		break;
-	case DRM_BO_MEM_TT:
-		if (!(drm_core_has_AGP(dev) && dev->agp)) {
-			DRM_ERROR("AGP is not enabled for memory type %u\n",
-				  (unsigned)type);
-			return -EINVAL;
-		}
-		man->io_offset = dev->agp->agp_info.aper_base;
-		man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
-		man->io_addr = NULL;
-		man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
-		    _DRM_FLAG_MEMTYPE_CSELECT | _DRM_FLAG_NEEDS_IOREMAP;
-		man->drm_bus_maptype = _DRM_AGP;
-		man->gpu_offset = 0;
-		break;
-	case DRM_BO_MEM_PRIV0:
-		if (!(drm_core_has_AGP(dev) && dev->agp)) {
-			DRM_ERROR("AGP is not enabled for memory type %u\n",
-				  (unsigned)type);
-			return -EINVAL;
-		}
-		man->io_offset = dev->agp->agp_info.aper_base;
-		man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
-		man->io_addr = NULL;
-		man->flags =  _DRM_FLAG_MEMTYPE_MAPPABLE |
-		    _DRM_FLAG_MEMTYPE_FIXED | _DRM_FLAG_NEEDS_IOREMAP;
-		man->drm_bus_maptype = _DRM_AGP;
-		man->gpu_offset = 0;
-		break;
-	default:
-		DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/*
- * i915_evict_flags:
- *
- * @bo: the buffer object to be evicted
- *
- * Return the bo flags for a buffer which is not mapped to the hardware.
- * These will be placed in proposed_flags so that when the move is
- * finished, they'll end up in bo->mem.flags
- */
-uint64_t i915_evict_flags(struct drm_buffer_object *bo)
-{
-	switch (bo->mem.mem_type) {
-	case DRM_BO_MEM_LOCAL:
-	case DRM_BO_MEM_TT:
-		return DRM_BO_FLAG_MEM_LOCAL;
-	default:
-		return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED;
-	}
-}
-
-#if 0 /* See comment below */
-
-static void i915_emit_copy_blit(struct drm_device * dev,
-				uint32_t src_offset,
-				uint32_t dst_offset,
-				uint32_t pages, int direction)
-{
-	uint32_t cur_pages;
-	uint32_t stride = PAGE_SIZE;
-	drm_i915_private_t *dev_priv = dev->dev_private;
-	RING_LOCALS;
-
-	if (!dev_priv)
-		return;
-
-	i915_kernel_lost_context(dev);
-	while (pages > 0) {
-		cur_pages = pages;
-		if (cur_pages > 2048)
-			cur_pages = 2048;
-		pages -= cur_pages;
-
-		BEGIN_LP_RING(6);
-		OUT_RING(SRC_COPY_BLT_CMD | XY_SRC_COPY_BLT_WRITE_ALPHA |
-			 XY_SRC_COPY_BLT_WRITE_RGB);
-		OUT_RING((stride & 0xffff) | (0xcc << 16) | (1 << 24) |
-			 (1 << 25) | (direction ? (1 << 30) : 0));
-		OUT_RING((cur_pages << 16) | PAGE_SIZE);
-		OUT_RING(dst_offset);
-		OUT_RING(stride & 0xffff);
-		OUT_RING(src_offset);
-		ADVANCE_LP_RING();
-	}
-	return;
-}
-
-static int i915_move_blit(struct drm_buffer_object * bo,
-			  int evict, int no_wait, struct drm_bo_mem_reg * new_mem)
-{
-	struct drm_bo_mem_reg *old_mem = &bo->mem;
-	int dir = 0;
-
-	if ((old_mem->mem_type == new_mem->mem_type) &&
-	    (new_mem->mm_node->start <
-	     old_mem->mm_node->start + old_mem->mm_node->size)) {
-		dir = 1;
-	}
-
-	i915_emit_copy_blit(bo->dev,
-			    old_mem->mm_node->start << PAGE_SHIFT,
-			    new_mem->mm_node->start << PAGE_SHIFT,
-			    new_mem->num_pages, dir);
-
-	i915_emit_mi_flush(bo->dev, MI_READ_FLUSH | MI_EXE_FLUSH);
-
-	return drm_bo_move_accel_cleanup(bo, evict, no_wait, 0,
-					 DRM_FENCE_TYPE_EXE |
-					 DRM_I915_FENCE_TYPE_RW,
-					 DRM_I915_FENCE_FLAG_FLUSHED, new_mem);
-}
-
-/*
- * Flip destination ttm into cached-coherent AGP,
- * then blit and subsequently move out again.
- */
-
-static int i915_move_flip(struct drm_buffer_object * bo,
-			  int evict, int no_wait, struct drm_bo_mem_reg * new_mem)
-{
-	struct drm_device *dev = bo->dev;
-	struct drm_bo_mem_reg tmp_mem;
-	int ret;
-
-	tmp_mem = *new_mem;
-	tmp_mem.mm_node = NULL;
-	tmp_mem.mask = DRM_BO_FLAG_MEM_TT |
-	    DRM_BO_FLAG_CACHED | DRM_BO_FLAG_FORCE_CACHING;
-
-	ret = drm_bo_mem_space(bo, &tmp_mem, no_wait);
-	if (ret)
-		return ret;
-
-	ret = drm_bind_ttm(bo->ttm, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-
-	ret = i915_move_blit(bo, 1, no_wait, &tmp_mem);
-	if (ret)
-		goto out_cleanup;
-
-	ret = drm_bo_move_ttm(bo, evict, no_wait, new_mem);
-out_cleanup:
-	if (tmp_mem.mm_node) {
-		mutex_lock(&dev->struct_mutex);
-		if (tmp_mem.mm_node != bo->pinned_node)
-			drm_mm_put_block(tmp_mem.mm_node);
-		tmp_mem.mm_node = NULL;
-		mutex_unlock(&dev->struct_mutex);
-	}
-	return ret;
-}
-
-#endif
-
-/*
- * Disable i915_move_flip for now, since we can't guarantee that the hardware
- * lock is held here. To re-enable we need to make sure either
- * a) The X server is using DRM to submit commands to the ring, or
- * b) DRM can use the HP ring for these blits. This means i915 needs to
- *    implement a new ring submission mechanism and fence class.
- */
-int i915_move(struct drm_buffer_object *bo,
-	      int evict, int no_wait, struct drm_bo_mem_reg *new_mem)
-{
-	struct drm_bo_mem_reg *old_mem = &bo->mem;
-
-	if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
-		return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	} else if (new_mem->mem_type == DRM_BO_MEM_LOCAL) {
-		if (1) /*i915_move_flip(bo, evict, no_wait, new_mem)*/
-			return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	} else {
-		if (1) /*i915_move_blit(bo, evict, no_wait, new_mem)*/
-			return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	}
-	return 0;
-}
-
-#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
-static inline void clflush(volatile void *__p)
-{
-	asm volatile("clflush %0" : "+m" (*(char __force *)__p));
-}
-#endif
-
-static inline void drm_cache_flush_addr(void *virt)
-{
-	int i;
-
-	for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
-		clflush(virt+i);
-}
-
-static inline void drm_cache_flush_page(struct page *p)
-{
-	drm_cache_flush_addr(page_address(p));
-}
-
-void i915_flush_ttm(struct drm_ttm *ttm)
-{
-	int i;
-
-	if (!ttm)
-		return;
-
-	DRM_MEMORYBARRIER();
-
-#ifdef CONFIG_X86_32
-	/* Hopefully nobody has built an x86-64 processor without clflush */
-	if (!cpu_has_clflush) {
-		wbinvd();
-		DRM_MEMORYBARRIER();
-		return;
-	}
-#endif
-
-	for (i = ttm->num_pages - 1; i >= 0; i--)
-		drm_cache_flush_page(drm_ttm_get_page(ttm, i));
-
-	DRM_MEMORYBARRIER();
-}