patch-2.4.20 linux-2.4.20/drivers/video/sis/sis_accel.h

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diff -urN linux-2.4.19/drivers/video/sis/sis_accel.h linux-2.4.20/drivers/video/sis/sis_accel.h
@@ -0,0 +1,508 @@
+/*
+ * SiS 300/630/730/540/315/550/650/740 frame buffer driver
+ * for Linux kernels 2.4.x and 2.5.x
+ *
+ * 2D acceleration part
+ *
+ * Based on the X driver's sis300_accel.h which is
+ *     Copyright Xavier Ducoin <x.ducoin@lectra.com>
+ *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ * and sis310_accel.h which is
+ *     Copyright 2002 by Thomas Winischhofer, Vienna, Austria
+ *
+ * Author:   Thomas Winischhofer <thomas@winischhofer.net>:
+ *			(see http://www.winischhofer.net/
+ *			for more information and updates)
+ */
+
+#ifndef _SISFB_ACCEL_H
+#define _SISFB_ACCEL_H
+
+/* Guard accelerator accesses with spin_lock_irqsave? Works well without. */
+#undef SISFB_USE_SPINLOCKS
+
+#ifdef SISFB_USE_SPINLOCKS
+#include <linux/spinlock.h>
+#define CRITBEGIN  spin_lock_irqsave(&ivideo.lockaccel), critflags);
+#define CRITEND	   spin_unlock_irqrestore(&ivideo.lockaccel), critflags);
+#define CRITFLAGS  unsigned long critflags;
+#else
+#define CRITBEGIN
+#define CRITEND
+#define CRITFLAGS
+#endif
+
+/* Definitions for the SIS engine communication. */
+
+#define PATREGSIZE      384  /* Pattern register size. 384 bytes @ 0x8300 */
+#define BR(x)   (0x8200 | (x) << 2)
+#define PBR(x)  (0x8300 | (x) << 2)
+
+/* SiS300 engine commands */
+#define BITBLT                  0x00000000  /* Blit */
+#define COLOREXP                0x00000001  /* Color expand */
+#define ENCOLOREXP              0x00000002  /* Enhanced color expand */
+#define MULTIPLE_SCANLINE       0x00000003  /* ? */
+#define LINE                    0x00000004  /* Draw line */
+#define TRAPAZOID_FILL          0x00000005  /* Fill trapezoid */
+#define TRANSPARENT_BITBLT      0x00000006  /* Transparent Blit */
+
+/* Additional engine commands for 310/325 */
+#define ALPHA_BLEND		0x00000007  /* Alpha blend ? */
+#define A3D_FUNCTION		0x00000008  /* 3D command ? */
+#define	CLEAR_Z_BUFFER		0x00000009  /* ? */
+#define GRADIENT_FILL		0x0000000A  /* Gradient fill */
+#define STRETCH_BITBLT		0x0000000B  /* Stretched Blit */
+
+/* source select */
+#define SRCVIDEO                0x00000000  /* source is video RAM */
+#define SRCSYSTEM               0x00000010  /* source is system memory */
+#define SRCCPUBLITBUF           SRCSYSTEM   /* source is CPU-driven BitBuffer (for color expand) */
+#define SRCAGP                  0x00000020  /* source is AGP memory (?) */
+
+/* Pattern flags */
+#define PATFG                   0x00000000  /* foreground color */
+#define PATPATREG               0x00000040  /* pattern in pattern buffer (0x8300) */
+#define PATMONO                 0x00000080  /* mono pattern */
+
+/* blitting direction (300 series only) */
+#define X_INC                   0x00010000
+#define X_DEC                   0x00000000
+#define Y_INC                   0x00020000
+#define Y_DEC                   0x00000000
+
+/* Clipping flags */
+#define NOCLIP                  0x00000000
+#define NOMERGECLIP             0x04000000
+#define CLIPENABLE              0x00040000
+#define CLIPWITHOUTMERGE        0x04040000
+
+/* Transparency */
+#define OPAQUE                  0x00000000
+#define TRANSPARENT             0x00100000
+
+/* ? */
+#define DSTAGP                  0x02000000
+#define DSTVIDEO                0x02000000
+
+/* Line */
+#define LINE_STYLE              0x00800000
+#define NO_RESET_COUNTER        0x00400000
+#define NO_LAST_PIXEL           0x00200000
+
+/* Subfunctions for Color/Enhanced Color Expansion (310/325 only) */
+#define COLOR_TO_MONO		0x00100000
+#define AA_TEXT			0x00200000
+
+/* Some general registers for 310/325 series */
+#define SRC_ADDR		0x8200
+#define SRC_PITCH		0x8204
+#define AGP_BASE		0x8206 /* color-depth dependent value */
+#define SRC_Y			0x8208
+#define SRC_X			0x820A
+#define DST_Y			0x820C
+#define DST_X			0x820E
+#define DST_ADDR		0x8210
+#define DST_PITCH		0x8214
+#define DST_HEIGHT		0x8216
+#define RECT_WIDTH		0x8218
+#define RECT_HEIGHT		0x821A
+#define PAT_FGCOLOR		0x821C
+#define PAT_BGCOLOR		0x8220
+#define SRC_FGCOLOR		0x8224
+#define SRC_BGCOLOR		0x8228
+#define MONO_MASK		0x822C
+#define LEFT_CLIP		0x8234
+#define TOP_CLIP		0x8236
+#define RIGHT_CLIP		0x8238
+#define BOTTOM_CLIP		0x823A
+#define COMMAND_READY		0x823C
+#define FIRE_TRIGGER      	0x8240
+
+#define PATTERN_REG		0x8300  /* 384 bytes pattern buffer */
+
+/* Line registers */
+#define LINE_X0			SRC_Y
+#define LINE_X1			DST_Y
+#define LINE_Y0			SRC_X
+#define LINE_Y1			DST_X
+#define LINE_COUNT		RECT_WIDTH
+#define LINE_STYLE_PERIOD	RECT_HEIGHT
+#define LINE_STYLE_0		MONO_MASK
+#define LINE_STYLE_1		0x8230
+#define LINE_XN			PATTERN_REG
+#define LINE_YN			PATTERN_REG+2
+
+/* Transparent bitblit registers */
+#define TRANS_DST_KEY_HIGH	PAT_FGCOLOR
+#define TRANS_DST_KEY_LOW	PAT_BGCOLOR
+#define TRANS_SRC_KEY_HIGH	SRC_FGCOLOR
+#define TRANS_SRC_KEY_LOW	SRC_BGCOLOR
+
+/* Queue */
+#define Q_BASE_ADDR		0x85C0  /* Base address of software queue (?) */
+#define Q_WRITE_PTR		0x85C4  /* Current write pointer (?) */
+#define Q_READ_PTR		0x85C8  /* Current read pointer (?) */
+#define Q_STATUS		0x85CC  /* queue status */
+
+
+#define MMIO_IN8(base, offset) \
+	*(volatile u8 *)(((u8*)(base)) + (offset))
+#define MMIO_IN16(base, offset) \
+	*(volatile u16 *)(void *)(((u8*)(base)) + (offset))
+#define MMIO_IN32(base, offset) \
+	*(volatile u32 *)(void *)(((u8*)(base)) + (offset))
+#define MMIO_OUT8(base, offset, val) \
+	*(volatile u8 *)(((u8*)(base)) + (offset)) = (val)
+#define MMIO_OUT16(base, offset, val) \
+	*(volatile u16 *)(void *)(((u8*)(base)) + (offset)) = (val)
+#define MMIO_OUT32(base, offset, val) \
+	*(volatile u32 *)(void *)(((u8*)(base)) + (offset)) = (val)
+
+/* ------------- SiS 300 series -------------- */
+
+/* Macros to do useful things with the SIS BitBLT engine */
+
+/* BR(16) (0x8420):
+
+   bit 31 2D engine: 1 is idle,
+   bit 30 3D engine: 1 is idle,
+   bit 29 Command queue: 1 is empty
+
+   bits 28:24: Current CPU driven BitBlt buffer stage bit[4:0]
+
+   bits 15:0:  Current command queue length
+
+*/
+
+/* TW: BR(16)+2 = 0x8242 */
+
+int     CmdQueLen;
+
+#define SiS300Idle \
+  { \
+  while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+  while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+  while( (MMIO_IN16(ivideo.mmio_vbase, BR(16)+2) & 0xE000) != 0xE000){}; \
+  CmdQueLen=MMIO_IN16(ivideo.mmio_vbase, 0x8240); \
+  }
+/* TW: (do three times, because 2D engine seems quite unsure about whether or not it's idle) */
+
+#define SiS300SetupSRCBase(base) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(0), base);\
+                CmdQueLen --;
+
+#define SiS300SetupSRCPitch(pitch) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT16(ivideo.mmio_vbase, BR(1), pitch);\
+                CmdQueLen --;
+
+#define SiS300SetupSRCXY(x,y) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(2), (x)<<16 | (y) );\
+                CmdQueLen --;
+
+#define SiS300SetupDSTBase(base) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(4), base);\
+                CmdQueLen --;
+
+#define SiS300SetupDSTXY(x,y) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(3), (x)<<16 | (y) );\
+                CmdQueLen --;
+
+#define SiS300SetupDSTRect(x,y) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(5), (y)<<16 | (x) );\
+                CmdQueLen --;
+
+#define SiS300SetupDSTColorDepth(bpp) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT16(ivideo.mmio_vbase, BR(1)+2, bpp);\
+                CmdQueLen --;
+
+#define SiS300SetupRect(w,h) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(6), (h)<<16 | (w) );\
+                CmdQueLen --;
+
+#define SiS300SetupPATFG(color) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(7), color);\
+                CmdQueLen --;
+
+#define SiS300SetupPATBG(color) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(8), color);\
+                CmdQueLen --;
+
+#define SiS300SetupSRCFG(color) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(9), color);\
+                CmdQueLen --;
+
+#define SiS300SetupSRCBG(color) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(10), color);\
+                CmdQueLen --;
+
+/* 0x8224 src colorkey high */
+/* 0x8228 src colorkey low */
+/* 0x821c dest colorkey high */
+/* 0x8220 dest colorkey low */
+#define SiS300SetupSRCTrans(color) \
+                if (CmdQueLen <= 1)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, 0x8224, color);\
+		MMIO_OUT32(ivideo.mmio_vbase, 0x8228, color);\
+		CmdQueLen -= 2;
+
+#define SiS300SetupDSTTrans(color) \
+		if (CmdQueLen <= 1)  SiS300Idle;\
+		MMIO_OUT32(ivideo.mmio_vbase, 0x821C, color); \
+		MMIO_OUT32(ivideo.mmio_vbase, 0x8220, color); \
+                CmdQueLen -= 2;
+
+#define SiS300SetupMONOPAT(p0,p1) \
+                if (CmdQueLen <= 1)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(11), p0);\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(12), p1);\
+                CmdQueLen -= 2;
+
+#define SiS300SetupClipLT(left,top) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(13), ((left) & 0xFFFF) | (top)<<16 );\
+                CmdQueLen--;
+
+#define SiS300SetupClipRB(right,bottom) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(14), ((right) & 0xFFFF) | (bottom)<<16 );\
+                CmdQueLen--;
+
+/* General */
+#define SiS300SetupROP(rop) \
+                ivideo.CommandReg = (rop) << 8;
+
+#define SiS300SetupCMDFlag(flags) \
+                ivideo.CommandReg |= (flags);
+
+#define SiS300DoCMD \
+                if (CmdQueLen <= 1)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(15), ivideo.CommandReg); \
+                MMIO_OUT32(ivideo.mmio_vbase, BR(16), 0);\
+                CmdQueLen -= 2;
+
+/* Line */
+#define SiS300SetupX0Y0(x,y) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(2), (y)<<16 | (x) );\
+                CmdQueLen--;
+
+#define SiS300SetupX1Y1(x,y) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(3), (y)<<16 | (x) );\
+                CmdQueLen--;
+
+#define SiS300SetupLineCount(c) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT16(ivideo.mmio_vbase, BR(6), c);\
+                CmdQueLen--;
+
+#define SiS300SetupStylePeriod(p) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT16(ivideo.mmio_vbase, BR(6)+2, p);\
+                CmdQueLen--;
+
+#define SiS300SetupStyleLow(ls) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(11), ls);\
+                CmdQueLen--;
+
+#define SiS300SetupStyleHigh(ls) \
+                if (CmdQueLen <= 0)  SiS300Idle;\
+                MMIO_OUT32(ivideo.mmio_vbase, BR(12), ls);\
+                CmdQueLen--;
+
+
+
+/* ----------- SiS 310/325 series --------------- */
+
+/* Q_STATUS:
+   bit 31 = 1: All engines idle and all queues empty
+   bit 30 = 1: Hardware Queue (=HW CQ, 2D queue, 3D queue) empty
+   bit 29 = 1: 2D engine is idle
+   bit 28 = 1: 3D engine is idle
+   bit 27 = 1: HW command queue empty
+   bit 26 = 1: 2D queue empty
+   bit 25 = 1: 3D queue empty
+   bit 24 = 1: SW command queue empty
+   bits 23:16: 2D counter 3
+   bits 15:8:  2D counter 2
+   bits 7:0:   2D counter 1
+
+   Where is the command queue length (current amount of commands the queue
+   can accept) on the 310/325 series? (The current implementation is taken
+   from 300 series and certainly wrong...)
+*/
+
+/* TW: FIXME: CmdQueLen is... where....? */
+#define SiS310Idle \
+  { \
+  while( (MMIO_IN16(ivideo.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
+  while( (MMIO_IN16(ivideo.mmio_vbase, Q_STATUS+2) & 0x8000) != 0x8000){}; \
+  CmdQueLen=MMIO_IN16(ivideo.mmio_vbase, Q_STATUS); \
+  }
+
+#define SiS310SetupSRCBase(base) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, SRC_ADDR, base);\
+      CmdQueLen--;
+
+#define SiS310SetupSRCPitch(pitch) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT16(ivideo.mmio_vbase, SRC_PITCH, pitch);\
+      CmdQueLen--;
+
+#define SiS310SetupSRCXY(x,y) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, SRC_Y, (x)<<16 | (y) );\
+      CmdQueLen--;
+
+#define SiS310SetupDSTBase(base) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, DST_ADDR, base);\
+      CmdQueLen--;
+
+#define SiS310SetupDSTXY(x,y) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, DST_Y, (x)<<16 | (y) );\
+      CmdQueLen--;
+
+#define SiS310SetupDSTRect(x,y) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, DST_PITCH, (y)<<16 | (x) );\
+      CmdQueLen--;
+
+#define SiS310SetupDSTColorDepth(bpp) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT16(ivideo.mmio_vbase, AGP_BASE, bpp);\
+      CmdQueLen--;
+
+#define SiS310SetupRect(w,h) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, RECT_WIDTH, (h)<<16 | (w) );\
+      CmdQueLen--;
+
+#define SiS310SetupPATFG(color) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, PAT_FGCOLOR, color);\
+      CmdQueLen--;
+
+#define SiS310SetupPATBG(color) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, PAT_BGCOLOR, color);\
+      CmdQueLen--;
+
+#define SiS310SetupSRCFG(color) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, SRC_FGCOLOR, color);\
+      CmdQueLen--;
+
+#define SiS310SetupSRCBG(color) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, SRC_BGCOLOR, color);\
+      CmdQueLen--;
+
+#define SiS310SetupSRCTrans(color) \
+      if (CmdQueLen <= 1)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, TRANS_SRC_KEY_HIGH, color);\
+      MMIO_OUT32(ivideo.mmio_vbase, TRANS_SRC_KEY_LOW, color);\
+      CmdQueLen -= 2;
+
+#define SiS310SetupDSTTrans(color) \
+      if (CmdQueLen <= 1)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, TRANS_DST_KEY_HIGH, color); \
+      MMIO_OUT32(ivideo.mmio_vbase, TRANS_DST_KEY_LOW, color); \
+      CmdQueLen -= 2;
+
+#define SiS310SetupMONOPAT(p0,p1) \
+      if (CmdQueLen <= 1)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, MONO_MASK, p0);\
+      MMIO_OUT32(ivideo.mmio_vbase, MONO_MASK+4, p1);\
+      CmdQueLen -= 2;
+
+#define SiS310SetupClipLT(left,top) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, LEFT_CLIP, ((left) & 0xFFFF) | (top)<<16 );\
+      CmdQueLen--;
+
+#define SiS310SetupClipRB(right,bottom) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, RIGHT_CLIP, ((right) & 0xFFFF) | (bottom)<<16 );\
+      CmdQueLen--;
+
+#define SiS310SetupROP(rop) \
+      ivideo.CommandReg = (rop) << 8;
+
+#define SiS310SetupCMDFlag(flags) \
+      ivideo.CommandReg |= (flags);
+
+#define SiS310DoCMD \
+      if (CmdQueLen <= 1)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, COMMAND_READY, ivideo.CommandReg); \
+      MMIO_OUT32(ivideo.mmio_vbase, FIRE_TRIGGER, 0); \
+      CmdQueLen -= 2;
+
+#define SiS310SetupX0Y0(x,y) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, LINE_X0, (y)<<16 | (x) );\
+      CmdQueLen--;
+
+#define SiS310SetupX1Y1(x,y) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, LINE_X1, (y)<<16 | (x) );\
+      CmdQueLen--;
+
+#define SiS310SetupLineCount(c) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT16(ivideo.mmio_vbase, LINE_COUNT, c);\
+      CmdQueLen--;
+
+#define SiS310SetupStylePeriod(p) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT16(ivideo.mmio_vbase, LINE_STYLE_PERIOD, p);\
+      CmdQueLen--;
+
+#define SiS310SetupStyleLow(ls) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, LINE_STYLE_0, ls);\
+      CmdQueLen--;
+
+#define SiS310SetupStyleHigh(ls) \
+      if (CmdQueLen <= 0)  SiS310Idle;\
+      MMIO_OUT32(ivideo.mmio_vbase, LINE_STYLE_1, ls);\
+      CmdQueLen--;
+
+int  sisfb_initaccel(void);
+
+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,33)
+void fbcon_sis_bmove(struct display *p, int srcy, int srcx, int dsty,
+                     int dstx, int height, int width);
+void fbcon_sis_revc(struct display *p, int srcy, int srcx);
+void fbcon_sis_clear8(struct vc_data *conp, struct display *p, int srcy,
+                      int srcx, int height, int width);
+void fbcon_sis_clear16(struct vc_data *conp, struct display *p, int srcy,
+                       int srcx, int height, int width);
+void fbcon_sis_clear32(struct vc_data *conp, struct display *p, int srcy,
+                       int srcx, int height, int width);
+#endif
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,34)
+extern int sisfb_accel;
+void fbcon_sis_fillrect(struct fb_info *info, struct fb_fillrect *rect);
+void fbcon_sis_copyarea(struct fb_info *info, struct fb_copyarea *area);
+extern void cfb_fillrect(struct fb_info *info, struct fb_fillrect *rect);
+extern void cfb_copyarea(struct fb_info *info, struct fb_copyarea *area);
+#endif
+
+#endif

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