From 8e41ce17b4ab72f526cc6e9acd75c3fa81a60433 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Mon, 4 Aug 2008 00:34:08 -0700
Subject: Expose pin/unpin/set_tiling/flink APIs

---
 libdrm/intel/intel_bufmgr_gem.c | 131 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)

(limited to 'libdrm/intel/intel_bufmgr_gem.c')

diff --git a/libdrm/intel/intel_bufmgr_gem.c b/libdrm/intel/intel_bufmgr_gem.c
index cdc2a7ac..22f8695d 100644
--- a/libdrm/intel/intel_bufmgr_gem.c
+++ b/libdrm/intel/intel_bufmgr_gem.c
@@ -768,6 +768,81 @@ dri_gem_post_submit(dri_bo *batch_buf)
     bufmgr_gem->exec_count = 0;
 }
 
+static int
+dri_gem_pin(dri_bo *bo, uint32_t alignment)
+{
+    dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)bo->bufmgr;
+    dri_bo_gem *bo_gem = (dri_bo_gem *)bo;
+    struct drm_i915_gem_pin pin;
+    int ret;
+
+    pin.handle = bo_gem->gem_handle;
+    pin.alignment = alignment;
+
+    ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_PIN, &pin);
+    if (ret != 0)
+	return -errno;
+
+    bo->offset = pin.offset;
+    return 0;
+}
+
+static int
+dri_gem_unpin(dri_bo *bo)
+{
+    dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)bo->bufmgr;
+    dri_bo_gem *bo_gem = (dri_bo_gem *)bo;
+    struct drm_i915_gem_unpin unpin;
+    int ret;
+
+    unpin.handle = bo_gem->gem_handle;
+
+    ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_UNPIN, &unpin);
+    if (ret != 0)
+	return -errno;
+
+    return 0;
+}
+
+static int
+dri_gem_set_tiling(dri_bo *bo, uint32_t *tiling_mode)
+{
+    dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)bo->bufmgr;
+    dri_bo_gem *bo_gem = (dri_bo_gem *)bo;
+    struct drm_i915_gem_set_tiling set_tiling;
+    int ret;
+
+    set_tiling.handle = bo_gem->gem_handle;
+    set_tiling.tiling_mode = *tiling_mode;
+
+    ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_I915_GEM_SET_TILING, &set_tiling);
+    if (ret != 0) {
+	*tiling_mode = I915_TILING_NONE;
+	return -errno;
+    }
+
+    *tiling_mode = set_tiling.tiling_mode;
+    return 0;
+}
+
+static int
+dri_gem_flink(dri_bo *bo, uint32_t *name)
+{
+    dri_bufmgr_gem *bufmgr_gem = (dri_bufmgr_gem *)bo->bufmgr;
+    dri_bo_gem *bo_gem = (dri_bo_gem *)bo;
+    struct drm_gem_flink flink;
+    int ret;
+
+    flink.handle = bo_gem->gem_handle;
+
+    ret = ioctl(bufmgr_gem->fd, DRM_IOCTL_GEM_FLINK, &flink);
+    if (ret != 0)
+	return -errno;
+
+    *name = flink.name;
+    return 0;
+}
+
 /**
  * Enables unlimited caching of buffer objects for reuse.
  *
@@ -832,6 +907,10 @@ intel_bufmgr_gem_init(int fd, int batch_size)
     bufmgr_gem->bufmgr.debug = 0;
     bufmgr_gem->bufmgr.check_aperture_space = dri_gem_check_aperture_space;
     bufmgr_gem->intel_bufmgr.emit_reloc = dri_gem_emit_reloc;
+    bufmgr_gem->intel_bufmgr.pin = dri_gem_pin;
+    bufmgr_gem->intel_bufmgr.unpin = dri_gem_unpin;
+    bufmgr_gem->intel_bufmgr.set_tiling = dri_gem_set_tiling;
+    bufmgr_gem->intel_bufmgr.flink = dri_gem_flink;
     /* Initialize the linked lists for BO reuse cache. */
     for (i = 0; i < INTEL_GEM_BO_BUCKETS; i++)
 	bufmgr_gem->cache_bucket[i].tail = &bufmgr_gem->cache_bucket[i].head;
@@ -851,3 +930,55 @@ intel_bo_emit_reloc(dri_bo *reloc_buf,
     return intel_bufmgr->emit_reloc(reloc_buf, read_domains, write_domain,
 				    delta, offset, target_buf);
 }
+
+int
+intel_bo_pin(dri_bo *bo, uint32_t alignment)
+{
+    struct intel_bufmgr *intel_bufmgr;
+
+    intel_bufmgr = (struct intel_bufmgr *)(bo->bufmgr + 1);
+
+    if (intel_bufmgr->pin)
+	return intel_bufmgr->pin(bo, alignment);
+
+    return 0;
+}
+
+int
+intel_bo_unpin(dri_bo *bo)
+{
+    struct intel_bufmgr *intel_bufmgr;
+
+    intel_bufmgr = (struct intel_bufmgr *)(bo->bufmgr + 1);
+
+    if (intel_bufmgr->unpin)
+	return intel_bufmgr->unpin(bo);
+
+    return 0;
+}
+
+int intel_bo_set_tiling(dri_bo *bo, uint32_t *tiling_mode)
+{
+    struct intel_bufmgr *intel_bufmgr;
+
+    intel_bufmgr = (struct intel_bufmgr *)(bo->bufmgr + 1);
+
+    if (intel_bufmgr->set_tiling)
+	return intel_bufmgr->set_tiling (bo, tiling_mode);
+
+    *tiling_mode = I915_TILING_NONE;
+    return 0;
+}
+
+int intel_bo_flink(dri_bo *bo, uint32_t *name)
+{
+    struct intel_bufmgr *intel_bufmgr;
+
+    intel_bufmgr = (struct intel_bufmgr *)(bo->bufmgr + 1);
+
+    if (intel_bufmgr->flink)
+	return intel_bufmgr->flink (bo, name);
+
+    return -ENODEV;
+}
+
-- 
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