1 files changed, 382 insertions, 0 deletions
diff --git a/intel/intel_bufmgr.c b/intel/intel_bufmgr.c
new file mode 100644
index 0000000..68d97c0
--- /dev/null
+++ b/intel/intel_bufmgr.c
@@ -0,0 +1,382 @@
+/*
+ * Copyright © 2007 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <assert.h>
+#include <errno.h>
+#include <drm.h>
+#include <i915_drm.h>
+#ifndef __ANDROID__
+#include <pciaccess.h>
+#endif
+#include "libdrm_macros.h"
+#include "intel_bufmgr.h"
+#include "intel_bufmgr_priv.h"
+#include "xf86drm.h"
+
+/** @file intel_bufmgr.c
+ *
+ * Convenience functions for buffer management methods.
+ */
+
+drm_public drm_intel_bo *
+drm_intel_bo_alloc(drm_intel_bufmgr *bufmgr, const char *name,
+		   unsigned long size, unsigned int alignment)
+{
+	return bufmgr->bo_alloc(bufmgr, name, size, alignment);
+}
+
+drm_public drm_intel_bo *
+drm_intel_bo_alloc_for_render(drm_intel_bufmgr *bufmgr, const char *name,
+			      unsigned long size, unsigned int alignment)
+{
+	return bufmgr->bo_alloc_for_render(bufmgr, name, size, alignment);
+}
+
+drm_public drm_intel_bo *
+drm_intel_bo_alloc_userptr(drm_intel_bufmgr *bufmgr,
+			   const char *name, void *addr,
+			   uint32_t tiling_mode,
+			   uint32_t stride,
+			   unsigned long size,
+			   unsigned long flags)
+{
+	if (bufmgr->bo_alloc_userptr)
+		return bufmgr->bo_alloc_userptr(bufmgr, name, addr, tiling_mode,
+						stride, size, flags);
+	return NULL;
+}
+
+drm_public drm_intel_bo *
+drm_intel_bo_alloc_tiled(drm_intel_bufmgr *bufmgr, const char *name,
+                        int x, int y, int cpp, uint32_t *tiling_mode,
+                        unsigned long *pitch, unsigned long flags)
+{
+	return bufmgr->bo_alloc_tiled(bufmgr, name, x, y, cpp,
+				      tiling_mode, pitch, flags);
+}
+
+drm_public void
+drm_intel_bo_reference(drm_intel_bo *bo)
+{
+	bo->bufmgr->bo_reference(bo);
+}
+
+drm_public void
+drm_intel_bo_unreference(drm_intel_bo *bo)
+{
+	if (bo == NULL)
+		return;
+
+	bo->bufmgr->bo_unreference(bo);
+}
+
+drm_public int
+drm_intel_bo_map(drm_intel_bo *buf, int write_enable)
+{
+	return buf->bufmgr->bo_map(buf, write_enable);
+}
+
+drm_public int
+drm_intel_bo_unmap(drm_intel_bo *buf)
+{
+	return buf->bufmgr->bo_unmap(buf);
+}
+
+drm_public int
+drm_intel_bo_subdata(drm_intel_bo *bo, unsigned long offset,
+		     unsigned long size, const void *data)
+{
+	return bo->bufmgr->bo_subdata(bo, offset, size, data);
+}
+
+drm_public int
+drm_intel_bo_get_subdata(drm_intel_bo *bo, unsigned long offset,
+			 unsigned long size, void *data)
+{
+	int ret;
+	if (bo->bufmgr->bo_get_subdata)
+		return bo->bufmgr->bo_get_subdata(bo, offset, size, data);
+
+	if (size == 0 || data == NULL)
+		return 0;
+
+	ret = drm_intel_bo_map(bo, 0);
+	if (ret)
+		return ret;
+	memcpy(data, (unsigned char *)bo->virtual + offset, size);
+	drm_intel_bo_unmap(bo);
+	return 0;
+}
+
+drm_public void
+drm_intel_bo_wait_rendering(drm_intel_bo *bo)
+{
+	bo->bufmgr->bo_wait_rendering(bo);
+}
+
+drm_public void
+drm_intel_bufmgr_destroy(drm_intel_bufmgr *bufmgr)
+{
+	bufmgr->destroy(bufmgr);
+}
+
+drm_public int
+drm_intel_bo_exec(drm_intel_bo *bo, int used,
+		  drm_clip_rect_t * cliprects, int num_cliprects, int DR4)
+{
+	return bo->bufmgr->bo_exec(bo, used, cliprects, num_cliprects, DR4);
+}
+
+drm_public int
+drm_intel_bo_mrb_exec(drm_intel_bo *bo, int used,
+		drm_clip_rect_t *cliprects, int num_cliprects, int DR4,
+		unsigned int rings)
+{
+	if (bo->bufmgr->bo_mrb_exec)
+		return bo->bufmgr->bo_mrb_exec(bo, used,
+					cliprects, num_cliprects, DR4,
+					rings);
+
+	switch (rings) {
+	case I915_EXEC_DEFAULT:
+	case I915_EXEC_RENDER:
+		return bo->bufmgr->bo_exec(bo, used,
+					   cliprects, num_cliprects, DR4);
+	default:
+		return -ENODEV;
+	}
+}
+
+drm_public void
+drm_intel_bufmgr_set_debug(drm_intel_bufmgr *bufmgr, int enable_debug)
+{
+	bufmgr->debug = enable_debug;
+}
+
+drm_public int
+drm_intel_bufmgr_check_aperture_space(drm_intel_bo ** bo_array, int count)
+{
+	return bo_array[0]->bufmgr->check_aperture_space(bo_array, count);
+}
+
+drm_public int
+drm_intel_bo_flink(drm_intel_bo *bo, uint32_t * name)
+{
+	if (bo->bufmgr->bo_flink)
+		return bo->bufmgr->bo_flink(bo, name);
+
+	return -ENODEV;
+}
+
+drm_public int
+drm_intel_bo_emit_reloc(drm_intel_bo *bo, uint32_t offset,
+			drm_intel_bo *target_bo, uint32_t target_offset,
+			uint32_t read_domains, uint32_t write_domain)
+{
+	return bo->bufmgr->bo_emit_reloc(bo, offset,
+					 target_bo, target_offset,
+					 read_domains, write_domain);
+}
+
+/* For fence registers, not GL fences */
+drm_public int
+drm_intel_bo_emit_reloc_fence(drm_intel_bo *bo, uint32_t offset,
+			      drm_intel_bo *target_bo, uint32_t target_offset,
+			      uint32_t read_domains, uint32_t write_domain)
+{
+	return bo->bufmgr->bo_emit_reloc_fence(bo, offset,
+					       target_bo, target_offset,
+					       read_domains, write_domain);
+}
+
+
+drm_public int
+drm_intel_bo_pin(drm_intel_bo *bo, uint32_t alignment)
+{
+	if (bo->bufmgr->bo_pin)
+		return bo->bufmgr->bo_pin(bo, alignment);
+
+	return -ENODEV;
+}
+
+drm_public int
+drm_intel_bo_unpin(drm_intel_bo *bo)
+{
+	if (bo->bufmgr->bo_unpin)
+		return bo->bufmgr->bo_unpin(bo);
+
+	return -ENODEV;
+}
+
+drm_public int
+drm_intel_bo_set_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
+			uint32_t stride)
+{
+	if (bo->bufmgr->bo_set_tiling)
+		return bo->bufmgr->bo_set_tiling(bo, tiling_mode, stride);
+
+	*tiling_mode = I915_TILING_NONE;
+	return 0;
+}
+
+drm_public int
+drm_intel_bo_get_tiling(drm_intel_bo *bo, uint32_t * tiling_mode,
+			uint32_t * swizzle_mode)
+{
+	if (bo->bufmgr->bo_get_tiling)
+		return bo->bufmgr->bo_get_tiling(bo, tiling_mode, swizzle_mode);
+
+	*tiling_mode = I915_TILING_NONE;
+	*swizzle_mode = I915_BIT_6_SWIZZLE_NONE;
+	return 0;
+}
+
+drm_public int
+drm_intel_bo_set_softpin_offset(drm_intel_bo *bo, uint64_t offset)
+{
+	if (bo->bufmgr->bo_set_softpin_offset)
+		return bo->bufmgr->bo_set_softpin_offset(bo, offset);
+
+	return -ENODEV;
+}
+
+drm_public int
+drm_intel_bo_disable_reuse(drm_intel_bo *bo)
+{
+	if (bo->bufmgr->bo_disable_reuse)
+		return bo->bufmgr->bo_disable_reuse(bo);
+	return 0;
+}
+
+drm_public int
+drm_intel_bo_is_reusable(drm_intel_bo *bo)
+{
+	if (bo->bufmgr->bo_is_reusable)
+		return bo->bufmgr->bo_is_reusable(bo);
+	return 0;
+}
+
+drm_public int
+drm_intel_bo_busy(drm_intel_bo *bo)
+{
+	if (bo->bufmgr->bo_busy)
+		return bo->bufmgr->bo_busy(bo);
+	return 0;
+}
+
+drm_public int
+drm_intel_bo_madvise(drm_intel_bo *bo, int madv)
+{
+	if (bo->bufmgr->bo_madvise)
+		return bo->bufmgr->bo_madvise(bo, madv);
+	return -1;
+}
+
+drm_public int
+drm_intel_bo_use_48b_address_range(drm_intel_bo *bo, uint32_t enable)
+{
+	if (bo->bufmgr->bo_use_48b_address_range) {
+		bo->bufmgr->bo_use_48b_address_range(bo, enable);
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+drm_public int
+drm_intel_bo_references(drm_intel_bo *bo, drm_intel_bo *target_bo)
+{
+	return bo->bufmgr->bo_references(bo, target_bo);
+}
+
+drm_public int
+drm_intel_get_pipe_from_crtc_id(drm_intel_bufmgr *bufmgr, int crtc_id)
+{
+	if (bufmgr->get_pipe_from_crtc_id)
+		return bufmgr->get_pipe_from_crtc_id(bufmgr, crtc_id);
+	return -1;
+}
+
+#ifndef __ANDROID__
+static size_t
+drm_intel_probe_agp_aperture_size(int fd)
+{
+	struct pci_device *pci_dev;
+	size_t size = 0;
+	int ret;
+
+	ret = pci_system_init();
+	if (ret)
+		goto err;
+
+	/* XXX handle multiple adaptors? */
+	pci_dev = pci_device_find_by_slot(0, 0, 2, 0);
+	if (pci_dev == NULL)
+		goto err;
+
+	ret = pci_device_probe(pci_dev);
+	if (ret)
+		goto err;
+
+	size = pci_dev->regions[2].size;
+err:
+	pci_system_cleanup ();
+	return size;
+}
+#else
+static size_t
+drm_intel_probe_agp_aperture_size(int fd)
+{
+	/* Nothing seems to rely on this value on Android anyway... */
+	fprintf(stderr, "%s: Mappable aperture size hardcoded to 64MiB\n", __func__);
+	return 64 * 1024 * 1024;
+}
+#endif
+
+drm_public int
+drm_intel_get_aperture_sizes(int fd, size_t *mappable, size_t *total)
+{
+
+	struct drm_i915_gem_get_aperture aperture;
+	int ret;
+
+	ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_GET_APERTURE, &aperture);
+	if (ret)
+		return ret;
+
+	*mappable = 0;
+	/* XXX add a query for the kernel value? */
+	if (*mappable == 0)
+		*mappable = drm_intel_probe_agp_aperture_size(fd);
+	if (*mappable == 0)
+		*mappable = 64 * 1024 * 1024; /* minimum possible value */
+	*total = aperture.aper_size;
+	return 0;
+}