Initial revision

1 files changed, 163 insertions, 0 deletions

diff --git a/src/mach64_sarea.h b/src/mach64_sarea.h
new file mode 100644
index 0000000..47a4bf9
--- /dev/null
+++ b/src/mach64_sarea.h
@@ -0,0 +1,163 @@
+/* $XFree86$ */ /* -*- mode: c; c-basic-offset: 3 -*- */
+/*
+ * Copyright 2000 Gareth Hughes
+ * 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
+ * GARETH HUGHES 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:
+ *   Gareth Hughes <gareth@valinux.com>
+ *   Leif Delgass <ldelgass@retinalburn.net>
+ */
+
+#ifndef __MACH64_SAREA_H__
+#define __MACH64_SAREA_H__ 1
+
+#include "Xmd.h"
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the kernel file (mach64_drm.h)
+ */
+#ifndef __MACH64_SAREA_DEFINES__
+#define __MACH64_SAREA_DEFINES__ 1
+
+/* What needs to be changed for the current vertex buffer?
+ * GH: We're going to be pedantic about this.  We want the card to do as
+ * little as possible, so let's avoid having it fetch a whole bunch of
+ * register values that don't change all that often, if at all.
+ */
+#define MACH64_UPLOAD_DST_OFF_PITCH	0x0001
+#define MACH64_UPLOAD_Z_OFF_PITCH	0x0002
+#define MACH64_UPLOAD_Z_ALPHA_CNTL	0x0004
+#define MACH64_UPLOAD_SCALE_3D_CNTL	0x0008
+#define MACH64_UPLOAD_DP_FOG_CLR	0x0010
+#define MACH64_UPLOAD_DP_WRITE_MASK	0x0020
+#define MACH64_UPLOAD_DP_PIX_WIDTH	0x0040
+#define MACH64_UPLOAD_SETUP_CNTL	0x0080
+#define MACH64_UPLOAD_MISC		0x0100
+#define MACH64_UPLOAD_TEXTURE		0x0200
+#define MACH64_UPLOAD_TEX0IMAGE		0x0400
+#define MACH64_UPLOAD_TEX1IMAGE		0x0800
+#define MACH64_UPLOAD_CLIPRECTS		0x1000 /* handled client-side */
+#define MACH64_UPLOAD_CONTEXT		0x00ff
+#define MACH64_UPLOAD_ALL		0x1fff
+
+/* DMA buffer size
+ */
+#define MACH64_BUFFER_SIZE		16384
+
+/* Max number of swaps allowed on the ring
+ * before the client must wait
+ */
+#define MACH64_MAX_QUEUED_FRAMES        3
+
+/* Byte offsets for host blit buffer data
+ */
+#define MACH64_HOSTDATA_BLIT_OFFSET	104
+
+/* Keep these small for testing.
+ */
+#define MACH64_NR_SAREA_CLIPRECTS	8
+
+
+#define MACH64_CARD_HEAP		0
+#define MACH64_AGP_HEAP			1
+#define MACH64_NR_TEX_HEAPS		2
+#define MACH64_NR_TEX_REGIONS		64
+#define MACH64_LOG_TEX_GRANULARITY	16
+
+#define MACH64_TEX_MAXLEVELS		1
+
+#define MACH64_NR_CONTEXT_REGS		15
+#define MACH64_NR_TEXTURE_REGS		4
+
+#endif /* __MACH64_SAREA_DEFINES__ */
+
+typedef struct {
+   /* Context state */
+   unsigned int dst_off_pitch;		/* 0x500 */
+
+   unsigned int z_off_pitch;		/* 0x548 */ /* ****** */
+   unsigned int z_cntl;			/* 0x54c */
+   unsigned int alpha_tst_cntl;		/* 0x550 */
+
+   unsigned int scale_3d_cntl;		/* 0x5fc */
+
+   unsigned int sc_left_right;		/* 0x6a8 */
+   unsigned int sc_top_bottom;		/* 0x6b4 */
+
+   unsigned int dp_fog_clr;		/* 0x6c4 */
+   unsigned int dp_write_mask;		/* 0x6c8 */
+   unsigned int dp_pix_width;		/* 0x6d0 */
+   unsigned int dp_mix;			/* 0x6d4 */ /* ****** */
+   unsigned int dp_src;			/* 0x6d8 */ /* ****** */
+
+   unsigned int clr_cmp_cntl;		/* 0x708 */ /* ****** */
+   unsigned int gui_traj_cntl;		/* 0x730 */ /* ****** */
+
+   unsigned int setup_cntl;		/* 0x304 */
+
+   /* Texture state */
+   unsigned int tex_size_pitch;		/* 0x770 */
+   unsigned int tex_cntl;		/* 0x774 */
+   unsigned int secondary_tex_off;	/* 0x778 */
+   unsigned int tex_offset;		/* 0x5c0 */
+} mach64_context_regs_t;
+
+typedef struct {
+   /* The channel for communication of state information to the kernel
+    * on firing a vertex buffer.
+    */
+   mach64_context_regs_t ContextState;
+   unsigned int dirty;
+   unsigned int vertsize;
+
+#ifdef XF86DRI
+   /* The current cliprects, or a subset thereof.
+    */
+   drm_clip_rect_t boxes[MACH64_NR_SAREA_CLIPRECTS];
+   unsigned int nbox;
+#endif
+   /* Counter for throttling of rendering clients.
+    */
+   unsigned int frames_queued;
+
+   /* Maintain an LRU of contiguous regions of texture space.  If you
+    * think you own a region of texture memory, and it has an age
+    * different to the one you set, then you are mistaken and it has
+    * been stolen by another client.  If global texAge hasn't changed,
+    * there is no need to walk the list.
+    *
+    * These regions can be used as a proxy for the fine-grained texture
+    * information of other clients - by maintaining them in the same
+    * lru which is used to age their own textures, clients have an
+    * approximate lru for the whole of global texture space, and can
+    * make informed decisions as to which areas to kick out.  There is
+    * no need to choose whether to kick out your own texture or someone
+    * else's - simply eject them all in LRU order.
+    */
+   drmTextureRegion texList[MACH64_NR_TEX_HEAPS][MACH64_NR_TEX_REGIONS+1];
+   unsigned int texAge[MACH64_NR_TEX_HEAPS];
+
+   int ctxOwner;     /* last context to upload state */
+} ATISAREAPrivRec, *ATISAREAPrivPtr;
+
+#endif /* __MACH64_SAREA_H__ */