Start to define ioctls

This is the beginnings of the definition of our GEM interface

Signed-off-by: Thomas White <taw@bitwiz.org.uk>

2 files changed, 141 insertions, 0 deletions

diff --git a/include/drm/Kbuild b/include/drm/Kbuild
index b940fdfa3b2..48b7b5533f1 100644
--- a/include/drm/Kbuild
+++ b/include/drm/Kbuild
@@ -8,3 +8,4 @@ unifdef-y += radeon_drm.h
 unifdef-y += sis_drm.h
 unifdef-y += savage_drm.h
 unifdef-y += via_drm.h
+unifdef-y += glamo_drm.h
diff --git a/include/drm/glamo_drm.h b/include/drm/glamo_drm.h
new file mode 100644
index 00000000000..1f128b68d2b
--- /dev/null
+++ b/include/drm/glamo_drm.h
@@ -0,0 +1,140 @@
+/* glamo_drm.h -- Public header for the Glamo driver
+ *
+ * Copyright 2009 Thomas White
+ * Copyright 2000 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Fremont, California.
+ * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * 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, 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
+ * PRECISION INSIGHT 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.
+ *
+ * Authors:
+ *    Thomas White <taw@bitwiz.org.uk>
+ *    Kevin E. Martin <martin@valinux.com>
+ *    Gareth Hughes <gareth@valinux.com>
+ *    Keith Whitwell <keith@tungstengraphics.com>
+ */
+
+#ifndef __GLAMO_DRM_H__
+#define __GLAMO_DRM_H__
+
+#include "drm.h"
+
+#define GLAMO_GEM_DOMAIN_VRAM (0x1)
+
+/* Glamo specific ioctls */
+#define DRM_GLAMO_CMDBUF     0x01
+#define DRM_GLAMO_SWAP       0x02
+
+#define DRM_GLAMO_GEM_INFO     0x1c
+#define DRM_GLAMO_GEM_CREATE   0x1d
+#define DRM_GLAMO_GEM_MMAP     0x1e
+#define DRM_GLAMO_GEM_PIN      0x1f
+#define DRM_GLAMO_GEM_UNPIN    0x20
+#define DRM_GLAMO_GEM_PREAD    0x21
+#define DRM_GLAMO_GEM_PWRITE   0x22
+#define DRM_GLAMO_GEM_WAIT_RENDERING 0x24
+
+#define DRM_IOCTL_GLAMO_CMDBUF     DRM_IOW( DRM_COMMAND_BASE + DRM_GLAMO_CMDBUF, drm_glamo_cmd_buffer_t)
+#define DRM_IOCTL_GLAMO_SWAP       DRM_IO(  DRM_COMMAND_BASE + DRM_GLAMO_SWAP)
+
+#define DRM_IOCTL_GLAMO_GEM_INFO   DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_INFO, struct drm_glamo_gem_info)
+#define DRM_IOCTL_GLAMO_GEM_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_CREATE, struct drm_glamo_gem_create)
+#define DRM_IOCTL_GLAMO_GEM_MMAP   DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_MMAP, struct drm_glamo_gem_mmap)
+#define DRM_IOCTL_GLAMO_GEM_PIN    DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PIN, struct drm_glamo_gem_pin)
+#define DRM_IOCTL_GLAMO_GEM_UNPIN  DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_UNPIN, struct drm_glamo_gem_unpin)
+#define DRM_IOCTL_GLAMO_GEM_PREAD  DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PREAD, struct drm_glamo_gem_pread)
+#define DRM_IOCTL_GLAMO_GEM_PWRITE DRM_IOWR(DRM_COMMAND_BASE + DRM_GLAMO_GEM_PWRITE, struct drm_glamo_gem_pwrite)
+#define DRM_IOCTL_GLAMO_GEM_WAIT_RENDERING DRM_IOW(DRM_COMMAND_BASE + DRM_GLAMO_GEM_WAIT_RENDERING, struct drm_glamo_gem_wait_rendering)
+
+typedef struct drm_glamo_cmd_buffer {
+	int bufsz;
+	char __user *buf;
+	int nbox;
+	struct drm_clip_rect __user *boxes;
+} drm_glamo_cmd_buffer_t;
+
+/* return to userspace start/size of gtt and vram apertures */
+struct drm_glamo_gem_info {
+	uint64_t gart_start;
+	uint64_t gart_size;
+	uint64_t vram_start;
+	uint64_t vram_size;
+	uint64_t vram_visible;
+};
+
+struct drm_glamo_gem_create {
+	uint64_t size;
+	uint64_t alignment;
+	uint32_t handle;
+	uint32_t initial_domain; // to allow VRAM to be created
+	uint32_t no_backing_store; // for VRAM objects - select whether they need backing store
+	// pretty much front/back/depth don't need it - other things do
+};
+
+struct drm_glamo_gem_mmap {
+	uint32_t handle;
+	uint32_t pad;
+	uint64_t offset;
+	uint64_t size;
+	uint64_t addr_ptr;
+};
+
+struct drm_glamo_gem_wait_rendering {
+	uint32_t handle;
+};
+
+struct drm_glamo_gem_pin {
+	uint32_t handle;
+	uint32_t pin_domain;
+	uint64_t alignment;
+	uint64_t offset;
+};
+
+struct drm_glamo_gem_unpin {
+	uint32_t handle;
+	uint32_t pad;
+};
+
+struct drm_glamo_gem_pread {
+	/** Handle for the object being read. */
+	uint32_t handle;
+	uint32_t pad;
+	/** Offset into the object to read from */
+	uint64_t offset;
+	/** Length of data to read */
+	uint64_t size;
+	/** Pointer to write the data into. */
+	uint64_t data_ptr;	/* void *, but pointers are not 32/64 compatible */
+};
+
+struct drm_glamo_gem_pwrite {
+	/** Handle for the object being written to. */
+	uint32_t handle;
+	uint32_t pad;
+	/** Offset into the object to write to */
+	uint64_t offset;
+	/** Length of data to write */
+	uint64_t size;
+	/** Pointer to read the data from. */
+	uint64_t data_ptr;	/* void *, but pointers are not 32/64 compatible */
+};
+
+#endif