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+/* mga_drm.h -- Public header for the Matrox g200/g400 driver
+ * Created: Tue Jan 25 01:50:01 1999 by jhartmann@precisioninsight.com
+ *
+ * Copyright 1999 Precision Insight, 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: Jeff Hartmann <jhartmann@precisioninsight.com>
+ * Keith Whitwell <keithw@precisioninsight.com>
+ *
+ * $XFree86$
+ */
+
+#ifndef _MGA_DRM_H_
+#define _MGA_DRM_H_
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmMga.h)
+ */
+#ifndef _MGA_DEFINES_
+#define _MGA_DEFINES_
+
+#define MGA_F 0x1 /* fog */
+#define MGA_A 0x2 /* alpha */
+#define MGA_S 0x4 /* specular */
+#define MGA_T2 0x8 /* multitexture */
+
+#define MGA_WARP_TGZ 0
+#define MGA_WARP_TGZF (MGA_F)
+#define MGA_WARP_TGZA (MGA_A)
+#define MGA_WARP_TGZAF (MGA_F|MGA_A)
+#define MGA_WARP_TGZS (MGA_S)
+#define MGA_WARP_TGZSF (MGA_S|MGA_F)
+#define MGA_WARP_TGZSA (MGA_S|MGA_A)
+#define MGA_WARP_TGZSAF (MGA_S|MGA_F|MGA_A)
+#define MGA_WARP_T2GZ (MGA_T2)
+#define MGA_WARP_T2GZF (MGA_T2|MGA_F)
+#define MGA_WARP_T2GZA (MGA_T2|MGA_A)
+#define MGA_WARP_T2GZAF (MGA_T2|MGA_A|MGA_F)
+#define MGA_WARP_T2GZS (MGA_T2|MGA_S)
+#define MGA_WARP_T2GZSF (MGA_T2|MGA_S|MGA_F)
+#define MGA_WARP_T2GZSA (MGA_T2|MGA_S|MGA_A)
+#define MGA_WARP_T2GZSAF (MGA_T2|MGA_S|MGA_F|MGA_A)
+
+#define MGA_MAX_G400_PIPES 16
+#define MGA_MAX_G200_PIPES 8 /* no multitex */
+#define MGA_MAX_WARP_PIPES MGA_MAX_G400_PIPES
+
+#define MGA_CARD_TYPE_G200 1
+#define MGA_CARD_TYPE_G400 2
+
+#define MGA_FRONT 0x1
+#define MGA_BACK 0x2
+#define MGA_DEPTH 0x4
+
+/* 3d state excluding texture units:
+ */
+#define MGA_CTXREG_DSTORG 0 /* validated */
+#define MGA_CTXREG_MACCESS 1
+#define MGA_CTXREG_PLNWT 2
+#define MGA_CTXREG_DWGCTL 3
+#define MGA_CTXREG_ALPHACTRL 4
+#define MGA_CTXREG_FOGCOLOR 5
+#define MGA_CTXREG_WFLAG 6
+#define MGA_CTXREG_TDUAL0 7
+#define MGA_CTXREG_TDUAL1 8
+#define MGA_CTXREG_FCOL 9
+#define MGA_CTX_SETUP_SIZE 10
+
+/* 2d state
+ */
+#define MGA_2DREG_PITCH 0
+#define MGA_2D_SETUP_SIZE 1
+
+/* Each texture unit has a state:
+ */
+#define MGA_TEXREG_CTL 0
+#define MGA_TEXREG_CTL2 1
+#define MGA_TEXREG_FILTER 2
+#define MGA_TEXREG_BORDERCOL 3
+#define MGA_TEXREG_ORG 4 /* validated */
+#define MGA_TEXREG_ORG1 5
+#define MGA_TEXREG_ORG2 6
+#define MGA_TEXREG_ORG3 7
+#define MGA_TEXREG_ORG4 8
+#define MGA_TEXREG_WIDTH 9
+#define MGA_TEXREG_HEIGHT 10
+#define MGA_TEX_SETUP_SIZE 11
+
+/* What needs to be changed for the current vertex dma buffer?
+ */
+#define MGA_UPLOAD_CTX 0x1
+#define MGA_UPLOAD_TEX0 0x2
+#define MGA_UPLOAD_TEX1 0x4
+#define MGA_UPLOAD_PIPE 0x8
+#define MGA_UPLOAD_TEX0IMAGE 0x10 /* handled client-side */
+#define MGA_UPLOAD_TEX1IMAGE 0x20 /* handled client-side */
+#define MGA_UPLOAD_2D 0x40
+#define MGA_WAIT_AGE 0x80 /* handled client-side */
+#define MGA_UPLOAD_CLIPRECTS 0x100 /* handled client-side */
+#define MGA_DMA_FLUSH 0x200 /* set when someone gets the lock
+ quiescent */
+
+/* 32 buffers of 64k each, total 2 meg.
+ */
+#define MGA_DMA_BUF_ORDER 16
+#define MGA_DMA_BUF_SZ (1<<MGA_DMA_BUF_ORDER)
+#define MGA_DMA_BUF_NR 31
+
+/* Keep these small for testing.
+ */
+#define MGA_NR_SAREA_CLIPRECTS 8
+
+/* 2 heaps (1 for card, 1 for agp), each divided into upto 128
+ * regions, subject to a minimum region size of (1<<16) == 64k.
+ *
+ * Clients may subdivide regions internally, but when sharing between
+ * clients, the region size is the minimum granularity.
+ */
+
+#define MGA_CARD_HEAP 0
+#define MGA_AGP_HEAP 1
+#define MGA_NR_TEX_HEAPS 2
+#define MGA_NR_TEX_REGIONS 16
+#define MGA_LOG_MIN_TEX_REGION_SIZE 16
+#endif
+
+typedef struct _drm_mga_warp_index {
+ int installed;
+ unsigned long phys_addr;
+ int size;
+} drm_mga_warp_index_t;
+
+typedef struct drm_mga_init {
+ enum {
+ MGA_INIT_DMA = 0x01,
+ MGA_CLEANUP_DMA = 0x02
+ } func;
+ int reserved_map_agpstart;
+ int reserved_map_idx;
+ int buffer_map_idx;
+ int sarea_priv_offset;
+ int primary_size;
+ int warp_ucode_size;
+ unsigned int frontOffset;
+ unsigned int backOffset;
+ unsigned int depthOffset;
+ unsigned int textureOffset;
+ unsigned int textureSize;
+ unsigned int agpTextureOffset;
+ unsigned int agpTextureSize;
+ unsigned int cpp;
+ unsigned int stride;
+ int sgram;
+ int chipset;
+ drm_mga_warp_index_t WarpIndex[MGA_MAX_WARP_PIPES];
+ unsigned int mAccess;
+} drm_mga_init_t;
+
+/* Warning: if you change the sarea structure, you must change the Xserver
+ * structures as well */
+
+typedef struct _drm_mga_tex_region {
+ unsigned char next, prev;
+ unsigned char in_use;
+ unsigned int age;
+} drm_mga_tex_region_t;
+
+typedef struct _drm_mga_sarea {
+ /* The channel for communication of state information to the kernel
+ * on firing a vertex dma buffer.
+ */
+ unsigned int ContextState[MGA_CTX_SETUP_SIZE];
+ unsigned int ServerState[MGA_2D_SETUP_SIZE];
+ unsigned int TexState[2][MGA_TEX_SETUP_SIZE];
+ unsigned int WarpPipe;
+ unsigned int dirty;
+
+ unsigned int nbox;
+ drm_clip_rect_t boxes[MGA_NR_SAREA_CLIPRECTS];
+
+
+ /* Information about the most recently used 3d drawable. The
+ * client fills in the req_* fields, the server fills in the
+ * exported_ fields and puts the cliprects into boxes, above.
+ *
+ * The client clears the exported_drawable field before
+ * clobbering the boxes data.
+ */
+ unsigned int req_drawable; /* the X drawable id */
+ unsigned int req_draw_buffer; /* MGA_FRONT or MGA_BACK */
+
+ unsigned int exported_drawable;
+ unsigned int exported_index;
+ unsigned int exported_stamp;
+ unsigned int exported_buffers;
+ unsigned int exported_nfront;
+ unsigned int exported_nback;
+ int exported_back_x, exported_front_x, exported_w;
+ int exported_back_y, exported_front_y, exported_h;
+ drm_clip_rect_t exported_boxes[MGA_NR_SAREA_CLIPRECTS];
+
+ /* Counters for aging textures and for client-side throttling.
+ */
+ unsigned int last_enqueue; /* last time a buffer was enqueued */
+ unsigned int last_dispatch; /* age of the most recently dispatched buffer */
+ unsigned int last_quiescent; /* */
+
+
+ /* LRU lists for texture memory in agp space and on the card
+ */
+ drm_mga_tex_region_t texList[MGA_NR_TEX_HEAPS][MGA_NR_TEX_REGIONS+1];
+ unsigned int texAge[MGA_NR_TEX_HEAPS];
+
+ /* Mechanism to validate card state.
+ */
+ int ctxOwner;
+} drm_mga_sarea_t;
+
+/* Device specific ioctls:
+ */
+typedef struct _drm_mga_clear {
+ unsigned int clear_color;
+ unsigned int clear_depth;
+ unsigned int flags;
+} drm_mga_clear_t;
+
+typedef struct _drm_mga_swap {
+ int dummy;
+} drm_mga_swap_t;
+
+typedef struct _drm_mga_iload {
+ int idx;
+ int length;
+ unsigned int destOrg;
+} drm_mga_iload_t;
+
+typedef struct _drm_mga_vertex {
+ int idx; /* buffer to queue */
+ int used; /* bytes in use */
+ int discard; /* client finished with buffer? */
+} drm_mga_vertex_t;
+
+typedef struct _drm_mga_indices {
+ int idx; /* buffer to queue */
+ unsigned int start;
+ unsigned int end;
+ int discard; /* client finished with buffer? */
+} drm_mga_indices_t;
+
+#endif