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Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/console/Kconfig20
-rw-r--r--drivers/video/fbdev/core/fbcon.c39
-rw-r--r--drivers/video/fbdev/core/fbcon.h15
-rw-r--r--drivers/video/fbdev/core/fbcon_ccw.c10
-rw-r--r--drivers/video/fbdev/core/fbcon_cw.c10
-rw-r--r--drivers/video/fbdev/core/fbcon_rotate.h4
-rw-r--r--drivers/video/fbdev/core/fbcon_ud.c20
7 files changed, 84 insertions, 34 deletions
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 840d9813b0bc..fcc46380e7c9 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -78,6 +78,26 @@ config FRAMEBUFFER_CONSOLE
 	help
 	  Low-level framebuffer-based console driver.
 
+config FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+	bool "Enable legacy fbcon hardware acceleration code"
+	depends on FRAMEBUFFER_CONSOLE
+	default y if PARISC
+	default n
+	help
+	  This option enables the fbcon (framebuffer text-based) hardware
+	  acceleration for graphics drivers which were written for the fbdev
+	  graphics interface.
+
+	  On modern machines, on mainstream machines (like x86-64) or when
+	  using a modern Linux distribution those fbdev drivers usually aren't used.
+	  So enabling this option wouldn't have any effect, which is why you want
+	  to disable this option on such newer machines.
+
+	  If you compile this kernel for older machines which still require the
+	  fbdev drivers, you may want to say Y.
+
+	  If unsure, select n.
+
 config FRAMEBUFFER_CONSOLE_DETECT_PRIMARY
        bool "Map the console to the primary display device"
        depends on FRAMEBUFFER_CONSOLE
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 0cc2a36b674a..f36829eeb5a9 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -1136,11 +1136,13 @@ static void fbcon_init(struct vc_data *vc, int init)
 
 	ops->graphics = 0;
 
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
 	if ((cap & FBINFO_HWACCEL_COPYAREA) &&
 	    !(cap & FBINFO_HWACCEL_DISABLED))
 		p->scrollmode = SCROLL_MOVE;
 	else /* default to something safe */
 		p->scrollmode = SCROLL_REDRAW;
+#endif
 
 	/*
 	 *  ++guenther: console.c:vc_allocate() relies on initializing
@@ -1705,7 +1707,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
 			count = vc->vc_rows;
 		if (logo_shown >= 0)
 			goto redraw_up;
-		switch (p->scrollmode) {
+		switch (fb_scrollmode(p)) {
 		case SCROLL_MOVE:
 			fbcon_redraw_blit(vc, info, p, t, b - t - count,
 				     count);
@@ -1795,7 +1797,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
 			count = vc->vc_rows;
 		if (logo_shown >= 0)
 			goto redraw_down;
-		switch (p->scrollmode) {
+		switch (fb_scrollmode(p)) {
 		case SCROLL_MOVE:
 			fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
 				     -count);
@@ -1946,12 +1948,12 @@ static void fbcon_bmove_rec(struct vc_data *vc, struct fbcon_display *p, int sy,
 		   height, width);
 }
 
-static void updatescrollmode(struct fbcon_display *p,
+static void updatescrollmode_accel(struct fbcon_display *p,
 					struct fb_info *info,
 					struct vc_data *vc)
 {
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
 	struct fbcon_ops *ops = info->fbcon_par;
-	int fh = vc->vc_font.height;
 	int cap = info->flags;
 	u16 t = 0;
 	int ypan = FBCON_SWAP(ops->rotate, info->fix.ypanstep,
@@ -1972,12 +1974,6 @@ static void updatescrollmode(struct fbcon_display *p,
 	int fast_imageblit = (cap & FBINFO_HWACCEL_IMAGEBLIT) &&
 		!(cap & FBINFO_HWACCEL_DISABLED);
 
-	p->vrows = vyres/fh;
-	if (yres > (fh * (vc->vc_rows + 1)))
-		p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
-	if ((yres % fh) && (vyres % fh < yres % fh))
-		p->vrows--;
-
 	if (good_wrap || good_pan) {
 		if (reading_fast || fast_copyarea)
 			p->scrollmode = good_wrap ?
@@ -1991,6 +1987,27 @@ static void updatescrollmode(struct fbcon_display *p,
 		else
 			p->scrollmode = SCROLL_REDRAW;
 	}
+#endif
+}
+
+static void updatescrollmode(struct fbcon_display *p,
+					struct fb_info *info,
+					struct vc_data *vc)
+{
+	struct fbcon_ops *ops = info->fbcon_par;
+	int fh = vc->vc_font.height;
+	int yres = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
+	int vyres = FBCON_SWAP(ops->rotate, info->var.yres_virtual,
+				   info->var.xres_virtual);
+
+	p->vrows = vyres/fh;
+	if (yres > (fh * (vc->vc_rows + 1)))
+		p->vrows -= (yres - (fh * vc->vc_rows)) / fh;
+	if ((yres % fh) && (vyres % fh < yres % fh))
+		p->vrows--;
+
+	/* update scrollmode in case hardware acceleration is used */
+	updatescrollmode_accel(p, info, vc);
 }
 
 #define PITCH(w) (((w) + 7) >> 3)
@@ -2148,7 +2165,7 @@ static int fbcon_switch(struct vc_data *vc)
 
 	updatescrollmode(p, info, vc);
 
-	switch (p->scrollmode) {
+	switch (fb_scrollmode(p)) {
 	case SCROLL_WRAP_MOVE:
 		scrollback_phys_max = p->vrows - vc->vc_rows;
 		break;
diff --git a/drivers/video/fbdev/core/fbcon.h b/drivers/video/fbdev/core/fbcon.h
index 5246d0f2574b..969d41ecede5 100644
--- a/drivers/video/fbdev/core/fbcon.h
+++ b/drivers/video/fbdev/core/fbcon.h
@@ -29,7 +29,9 @@ struct fbcon_display {
     /* Filled in by the low-level console driver */
     const u_char *fontdata;
     int userfont;                   /* != 0 if fontdata kmalloc()ed */
-    u_short scrollmode;             /* Scroll Method */
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+    u_short scrollmode;             /* Scroll Method, use fb_scrollmode() */
+#endif
     u_short inverse;                /* != 0 text black on white as default */
     short yscroll;                  /* Hardware scrolling */
     int vrows;                      /* number of virtual rows */
@@ -208,6 +210,17 @@ static inline int attr_col_ec(int shift, struct vc_data *vc,
 #define SCROLL_REDRAW	   0x004
 #define SCROLL_PAN_REDRAW  0x005
 
+static inline u_short fb_scrollmode(struct fbcon_display *fb)
+{
+#ifdef CONFIG_FRAMEBUFFER_CONSOLE_LEGACY_ACCELERATION
+	return fb->scrollmode;
+#else
+	/* hardcoded to SCROLL_REDRAW if acceleration was disabled. */
+	return SCROLL_REDRAW;
+#endif
+}
+
+
 #ifdef CONFIG_FB_TILEBLITTING
 extern void fbcon_set_tileops(struct vc_data *vc, struct fb_info *info);
 #endif
diff --git a/drivers/video/fbdev/core/fbcon_ccw.c b/drivers/video/fbdev/core/fbcon_ccw.c
index 9cd2c4b05c32..2789ace79634 100644
--- a/drivers/video/fbdev/core/fbcon_ccw.c
+++ b/drivers/video/fbdev/core/fbcon_ccw.c
@@ -65,7 +65,7 @@ static void ccw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	area.sx = sy * vc->vc_font.height;
 	area.sy = vyres - ((sx + width) * vc->vc_font.width);
@@ -83,7 +83,7 @@ static void ccw_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dx = sy * vc->vc_font.height;
@@ -140,7 +140,7 @@ static void ccw_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -229,7 +229,7 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -387,7 +387,7 @@ static int ccw_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	u32 yoffset;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
 	int err;
 
 	yoffset = (vyres - info->var.yres) - ops->var.xoffset;
diff --git a/drivers/video/fbdev/core/fbcon_cw.c b/drivers/video/fbdev/core/fbcon_cw.c
index 88d89fad3f05..86a254c1b2b7 100644
--- a/drivers/video/fbdev/core/fbcon_cw.c
+++ b/drivers/video/fbdev/core/fbcon_cw.c
@@ -50,7 +50,7 @@ static void cw_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	area.sx = vxres - ((sy + height) * vc->vc_font.height);
 	area.sy = sx * vc->vc_font.width;
@@ -68,7 +68,7 @@ static void cw_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dx = vxres - ((sy + height) * vc->vc_font.height);
@@ -125,7 +125,7 @@ static void cw_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -212,7 +212,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -369,7 +369,7 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 static int cw_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vxres = GETVXRES(ops->p, info);
 	u32 xoffset;
 	int err;
 
diff --git a/drivers/video/fbdev/core/fbcon_rotate.h b/drivers/video/fbdev/core/fbcon_rotate.h
index e233444cda66..01cbe303b8a2 100644
--- a/drivers/video/fbdev/core/fbcon_rotate.h
+++ b/drivers/video/fbdev/core/fbcon_rotate.h
@@ -12,11 +12,11 @@
 #define _FBCON_ROTATE_H
 
 #define GETVYRES(s,i) ({                           \
-        (s == SCROLL_REDRAW || s == SCROLL_MOVE) ? \
+        (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE) ? \
         (i)->var.yres : (i)->var.yres_virtual; })
 
 #define GETVXRES(s,i) ({                           \
-        (s == SCROLL_REDRAW || s == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
+        (fb_scrollmode(s) == SCROLL_REDRAW || fb_scrollmode(s) == SCROLL_MOVE || !(i)->fix.xpanstep) ? \
         (i)->var.xres : (i)->var.xres_virtual; })
 
 
diff --git a/drivers/video/fbdev/core/fbcon_ud.c b/drivers/video/fbdev/core/fbcon_ud.c
index 8d5e66b1bdfb..23bc045769d0 100644
--- a/drivers/video/fbdev/core/fbcon_ud.c
+++ b/drivers/video/fbdev/core/fbcon_ud.c
@@ -50,8 +50,8 @@ static void ud_bmove(struct vc_data *vc, struct fb_info *info, int sy,
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_copyarea area;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	area.sy = vyres - ((sy + height) * vc->vc_font.height);
 	area.sx = vxres - ((sx + width) * vc->vc_font.width);
@@ -69,8 +69,8 @@ static void ud_clear(struct vc_data *vc, struct fb_info *info, int sy,
 	struct fbcon_ops *ops = info->fbcon_par;
 	struct fb_fillrect region;
 	int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	region.color = attr_bgcol_ec(bgshift,vc,info);
 	region.dy = vyres - ((sy + height) * vc->vc_font.height);
@@ -162,8 +162,8 @@ static void ud_putcs(struct vc_data *vc, struct fb_info *info,
 	u32 mod = vc->vc_font.width % 8, cnt, pitch, size;
 	u32 attribute = get_attribute(info, scr_readw(s));
 	u8 *dst, *buf = NULL;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -259,8 +259,8 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
 	int attribute, use_sw = vc->vc_cursor_type & CUR_SW;
 	int err = 1, dx, dy;
 	char *src;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 
 	if (!ops->fontbuffer)
 		return;
@@ -410,8 +410,8 @@ static int ud_update_start(struct fb_info *info)
 {
 	struct fbcon_ops *ops = info->fbcon_par;
 	int xoffset, yoffset;
-	u32 vyres = GETVYRES(ops->p->scrollmode, info);
-	u32 vxres = GETVXRES(ops->p->scrollmode, info);
+	u32 vyres = GETVYRES(ops->p, info);
+	u32 vxres = GETVXRES(ops->p, info);
 	int err;
 
 	xoffset = vxres - info->var.xres - ops->var.xoffset;
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-09-29 17:37:15 +0000