From 360475376c5a597caf4a981c934a6b0d783fa94d Mon Sep 17 00:00:00 2001
From: Gareth Hughes <gareth@users.sourceforge.net>
Date: Thu, 15 Feb 2001 08:12:14 +0000
Subject: Merge mga-1-0-0-branch into trunk.

---
 linux/mga_drm.h | 397 ++++++++++++++++++++++++++++++--------------------------
 1 file changed, 211 insertions(+), 186 deletions(-)

(limited to 'linux/mga_drm.h')

diff --git a/linux/mga_drm.h b/linux/mga_drm.h
index 53813393..c2fe4a18 100644
--- a/linux/mga_drm.h
+++ b/linux/mga_drm.h
@@ -11,197 +11,178 @@
  * 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
+ * VA LINUX SYSTEMS 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.
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
  *
- * Authors: Jeff Hartmann <jhartmann@valinux.com>
- *          Keith Whitwell <keithw@valinux.com>
+ * Authors:
+ *    Jeff Hartmann <jhartmann@valinux.com>
+ *    Keith Whitwell <keithw@valinux.com>
  *
+ * Rewritten by:
+ *    Gareth Hughes <gareth@valinux.com>
  */
 
-#ifndef _MGA_DRM_H_
-#define _MGA_DRM_H_
+#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_CTXREG_STENCIL    10
-#define MGA_CTXREG_STENCILCTL 11
-#define MGA_CTX_SETUP_SIZE    12
-
-/* 2d state
+ * defines in the Xserver file (mga_sarea.h)
  */
-#define MGA_2DREG_PITCH 	0
-#define MGA_2D_SETUP_SIZE 	1
+#ifndef __MGA_SAREA_DEFINES__
+#define __MGA_SAREA_DEFINES__
 
-/* Each texture unit has a state:
+/* WARP pipe flags
  */
-#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
+#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_G200_PIPES	8		/* no multitex */
+#define MGA_MAX_G400_PIPES	16
+#define MGA_MAX_WARP_PIPES	MGA_MAX_G400_PIPES
+#define MGA_WARP_UCODE_SIZE	32768		/* in bytes */
+
+#define MGA_CARD_TYPE_G200	1
+#define MGA_CARD_TYPE_G400	2
+
+
+#define MGA_FRONT		0x1
+#define MGA_BACK		0x2
+#define MGA_DEPTH		0x4
 
 /* 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 */
+#define MGA_UPLOAD_CONTEXT	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 */
+#if 0
+#define MGA_DMA_FLUSH		0x200 /* set when someone gets the lock
+					 quiescent */
+#endif
 
 /* 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
+#define MGA_BUFFER_SIZE		(1 << 16)
+#define MGA_NUM_BUFFERS		32
 
 /* Keep these small for testing.
  */
-#define MGA_NR_SAREA_CLIPRECTS 8
+#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. 
+ * 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. 
+ * 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
+#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
 
-typedef struct _drm_mga_warp_index {
-   	int installed;
-   	unsigned long phys_addr;
-   	int size;
-} drm_mga_warp_index_t;
+#endif /* __MGA_SAREA_DEFINES__ */
 
-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 */
+/* Setup registers for 3D context
+ */
+typedef struct {
+	unsigned int dstorg;
+	unsigned int maccess;
+	unsigned int plnwt;
+	unsigned int dwgctl;
+	unsigned int alphactrl;
+	unsigned int fogcolor;
+	unsigned int wflag;
+	unsigned int tdualstage0;
+	unsigned int tdualstage1;
+	unsigned int fcol;
+	unsigned int stencil;
+	unsigned int stencilctl;
+} drm_mga_context_regs_t;
+
+/* Setup registers for 2D, X server
+ */
+typedef struct {
+	unsigned int pitch;
+} drm_mga_server_regs_t;
 
-typedef struct _drm_mga_tex_region {
-	unsigned char next, prev;	
-	unsigned char in_use;	
-	unsigned int age;			
-} drm_mga_tex_region_t;
+/* Setup registers for each texture unit
+ */
+typedef struct {
+	unsigned int texctl;
+	unsigned int texctl2;
+	unsigned int texfilter;
+	unsigned int texbordercol;
+	unsigned int texorg;
+	unsigned int texwidth;
+	unsigned int texheight;
+	unsigned int texorg1;
+	unsigned int texorg2;
+	unsigned int texorg3;
+	unsigned int texorg4;
+} drm_mga_texture_regs_t;
+
+/* General aging mechanism
+ */
+typedef struct {
+	unsigned int head;		/* Position of head pointer          */
+	unsigned int wrap;		/* Primary DMA wrap count            */
+} drm_mga_age_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;
+   	drm_mga_context_regs_t context_state;
+   	drm_mga_server_regs_t server_state;
+   	drm_mga_texture_regs_t tex_state[2];
+   	unsigned int warp_pipe;
    	unsigned int dirty;
+   	unsigned int vertsize;
 
-   	unsigned int nbox;
+	/* The current cliprects, or a subset thereof.
+	 */
    	drm_clip_rect_t boxes[MGA_NR_SAREA_CLIPRECTS];
-
+   	unsigned int nbox;
 
 	/* Information about the most recently used 3d drawable.  The
-	 * client fills in the req_* fields, the server fills in 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
@@ -210,75 +191,119 @@ typedef struct _drm_mga_sarea {
         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_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_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 status[4];
+	unsigned int last_wrap;
+
+	drm_mga_age_t last_frame;
         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
+	/* 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];
+	drm_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;
-   	int vertexsize;
-} drm_mga_sarea_t;	
+} drm_mga_sarea_t;
 
-/* Device specific ioctls:
+
+/* WARNING: If you change any of these defines, make sure to change the
+ * defines in the Xserver file (xf86drmMga.h)
  */
-typedef struct _drm_mga_clear {
+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 sarea_priv_offset;
+
+	int chipset;
+   	int sgram;
+
+	unsigned int maccess;
+
+   	unsigned int fb_cpp;
+	unsigned int front_offset, front_pitch;
+   	unsigned int back_offset, back_pitch;
+
+   	unsigned int depth_cpp;
+   	unsigned int depth_offset, depth_pitch;
+
+   	unsigned int texture_offset[MGA_NR_TEX_HEAPS];
+   	unsigned int texture_size[MGA_NR_TEX_HEAPS];
+
+	unsigned int fb_offset;
+	unsigned int mmio_offset;
+	unsigned int status_offset;
+	unsigned int warp_offset;
+	unsigned int primary_offset;
+	unsigned int buffers_offset;
+} drm_mga_init_t;
+
+typedef struct drm_mga_fullscreen {
+	enum {
+		MGA_INIT_FULLSCREEN    = 0x01,
+		MGA_CLEANUP_FULLSCREEN = 0x02
+	} func;
+} drm_mga_fullscreen_t;
+
+typedef struct drm_mga_clear {
+	unsigned int flags;
 	unsigned int clear_color;
 	unsigned int clear_depth;
-	unsigned int flags;
-	unsigned int clear_depth_mask;
-	unsigned int clear_color_mask;
+	unsigned int color_mask;
+	unsigned int depth_mask;
 } 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?  */
+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?  */
+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;
 
-typedef struct _drm_mga_blit {
+typedef struct drm_mga_iload {
+	int idx;
+	unsigned int dstorg;
+	unsigned int length;
+} drm_mga_iload_t;
+
+typedef struct drm_mga_blit {
 	unsigned int planemask;
-	unsigned int source;
-	unsigned int dest;
+	unsigned int srcorg;
+	unsigned int dstorg;
+	int src_pitch, dst_pitch;
 	int delta_sx, delta_sy;
 	int delta_dx, delta_dy;
 	int height, ydir;		/* flip image vertically */
-	int source_pitch, dest_pitch;
 } drm_mga_blit_t;
 
 #endif
-- 
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