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-rw-r--r--Documentation/fb/cyblafb/bugs1
-rw-r--r--Documentation/fb/cyblafb/fb.modes57
-rw-r--r--Documentation/fb/cyblafb/performance1
-rw-r--r--Documentation/fb/cyblafb/todo5
-rw-r--r--Documentation/fb/cyblafb/usage33
-rw-r--r--Documentation/fb/cyblafb/whatsnew29
-rw-r--r--drivers/video/Kconfig2
-rw-r--r--drivers/video/cyblafb.c1523
-rw-r--r--include/video/cyblafb.h4
9 files changed, 960 insertions, 695 deletions
diff --git a/Documentation/fb/cyblafb/bugs b/Documentation/fb/cyblafb/bugs
index f90cc66ea91..9443a6d72cd 100644
--- a/Documentation/fb/cyblafb/bugs
+++ b/Documentation/fb/cyblafb/bugs
@@ -11,4 +11,3 @@ Untested features
All LCD stuff is untested. If it worked in tridentfb, it should work in
cyblafb. Please test and report the results to Knut_Petersen@t-online.de.
-
diff --git a/Documentation/fb/cyblafb/fb.modes b/Documentation/fb/cyblafb/fb.modes
index cf4351fc32f..fe0e5223ba8 100644
--- a/Documentation/fb/cyblafb/fb.modes
+++ b/Documentation/fb/cyblafb/fb.modes
@@ -14,142 +14,141 @@
#
mode "640x480-50"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 47619 4294967256 24 17 0 216 3
endmode
mode "640x480-60"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 39682 4294967256 24 17 0 216 3
endmode
mode "640x480-70"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 34013 4294967256 24 17 0 216 3
endmode
mode "640x480-72"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 33068 4294967256 24 17 0 216 3
endmode
mode "640x480-75"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 31746 4294967256 24 17 0 216 3
endmode
mode "640x480-80"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 29761 4294967256 24 17 0 216 3
endmode
mode "640x480-85"
- geometry 640 480 640 3756 8
+ geometry 640 480 2048 4096 8
timings 28011 4294967256 24 17 0 216 3
endmode
mode "800x600-50"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 30303 96 24 14 0 136 11
endmode
mode "800x600-60"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 25252 96 24 14 0 136 11
endmode
mode "800x600-70"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 21645 96 24 14 0 136 11
endmode
mode "800x600-72"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 21043 96 24 14 0 136 11
endmode
mode "800x600-75"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 20202 96 24 14 0 136 11
endmode
mode "800x600-80"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 18939 96 24 14 0 136 11
endmode
mode "800x600-85"
- geometry 800 600 800 3221 8
+ geometry 800 600 2048 4096 8
timings 17825 96 24 14 0 136 11
endmode
mode "1024x768-50"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 19054 144 24 29 0 120 3
endmode
mode "1024x768-60"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 15880 144 24 29 0 120 3
endmode
mode "1024x768-70"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 13610 144 24 29 0 120 3
endmode
mode "1024x768-72"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 13232 144 24 29 0 120 3
endmode
mode "1024x768-75"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 12703 144 24 29 0 120 3
endmode
mode "1024x768-80"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 11910 144 24 29 0 120 3
endmode
mode "1024x768-85"
- geometry 1024 768 1024 2815 8
+ geometry 1024 768 2048 4096 8
timings 11209 144 24 29 0 120 3
endmode
mode "1280x1024-50"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 11114 232 16 39 0 160 3
endmode
mode "1280x1024-60"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 9262 232 16 39 0 160 3
endmode
mode "1280x1024-70"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 7939 232 16 39 0 160 3
endmode
mode "1280x1024-72"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 7719 232 16 39 0 160 3
endmode
mode "1280x1024-75"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 7410 232 16 39 0 160 3
endmode
mode "1280x1024-80"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 6946 232 16 39 0 160 3
endmode
mode "1280x1024-85"
- geometry 1280 1024 1280 2662 8
+ geometry 1280 1024 2048 4096 8
timings 6538 232 16 39 0 160 3
endmode
-
diff --git a/Documentation/fb/cyblafb/performance b/Documentation/fb/cyblafb/performance
index eb4e47a9cea..8d15d5dfc6b 100644
--- a/Documentation/fb/cyblafb/performance
+++ b/Documentation/fb/cyblafb/performance
@@ -77,4 +77,3 @@ patch that speeds up kernel bitblitting a lot ( > 20%).
| | | | |
| | | | |
+-----------+-----------------+-----------------+-----------------+
-
diff --git a/Documentation/fb/cyblafb/todo b/Documentation/fb/cyblafb/todo
index 80fb2f89b6c..c5f6d0eae54 100644
--- a/Documentation/fb/cyblafb/todo
+++ b/Documentation/fb/cyblafb/todo
@@ -22,11 +22,10 @@ accelerated color blitting Who needs it? The console driver does use color
everything else is done using color expanding
blitting of 1bpp character bitmaps.
-xpanning Who needs it?
-
ioctls Who needs it?
-TV-out Will be done later
+TV-out Will be done later. Use "vga= " at boot time
+ to set a suitable video mode.
??? Feel free to contact me if you have any
feature requests
diff --git a/Documentation/fb/cyblafb/usage b/Documentation/fb/cyblafb/usage
index e627c8f5421..a39bb3d402a 100644
--- a/Documentation/fb/cyblafb/usage
+++ b/Documentation/fb/cyblafb/usage
@@ -40,6 +40,16 @@ Selecting Modes
None of the modes possible to select as startup modes are affected by
the problems described at the end of the next subsection.
+ For all startup modes cyblafb chooses a virtual x resolution of 2048,
+ the only exception is mode 1280x1024 in combination with 32 bpp. This
+ allows ywrap scrolling for all those modes if rotation is 0 or 2, and
+ also fast scrolling if rotation is 1 or 3. The default virtual y reso-
+ lution is 4096 for bpp == 8, 2048 for bpp==16 and 1024 for bpp == 32,
+ again with the only exception of 1280x1024 at 32 bpp.
+
+ Please do set your video memory size to 8 Mb in the Bios setup. Other
+ values will work, but performace is decreased for a lot of modes.
+
Mode changes using fbset
========================
@@ -54,20 +64,26 @@ Selecting Modes
- if a flat panel is found, cyblafb does not allow you
to program a resolution higher than the physical
resolution of the flat panel monitor
- - cyblafb does not allow xres to differ from xres_virtual
- cyblafb does not allow vclk to exceed 230 MHz. As 32 bpp
and (currently) 24 bit modes use a doubled vclk internally,
the dotclock limit as seen by fbset is 115 MHz for those
modes and 230 MHz for 8 and 16 bpp modes.
+ - cyblafb will allow you to select very high resolutions as
+ long as the hardware can be programmed to these modes. The
+ documented limit 1600x1200 is not enforced, but don't expect
+ perfect signal quality.
- Any request that violates the rules given above will be ignored and
- fbset will return an error.
+ Any request that violates the rules given above will be either changed
+ to something the hardware supports or an error value will be returned.
If you program a virtual y resolution higher than the hardware limit,
cyblafb will silently decrease that value to the highest possible
- value.
+ value. The same is true for a virtual x resolution that is not
+ supported by the hardware. Cyblafb tries to adapt vyres first because
+ vxres decides if ywrap scrolling is possible or not.
- Attempts to disable acceleration are ignored.
+ Attempts to disable acceleration are ignored, I believe that this is
+ safe.
Some video modes that should work do not work as expected. If you use
the standard fb.modes, fbset 640x480-60 will program that mode, but
@@ -129,10 +145,6 @@ mode 640x480 or 800x600 or 1024x768 or 1280x1024
verbosity 0 is the default, increase to at least 2 for every
bug report!
-vesafb allows cyblafb to be loaded after vesafb has been
- loaded. See sections "Module unloading ...".
-
-
Development hints
=================
@@ -195,7 +207,7 @@ a graphics mode.
After booting, load cyblafb without any mode and bpp parameter and assign
cyblafb to individual ttys using con2fb, e.g.:
- modprobe cyblafb vesafb=1
+ modprobe cyblafb
con2fb /dev/fb1 /dev/tty1
Unloading cyblafb works without problems after you assign vesafb to all
@@ -203,4 +215,3 @@ ttys again, e.g.:
con2fb /dev/fb0 /dev/tty1
rmmod cyblafb
-
diff --git a/Documentation/fb/cyblafb/whatsnew b/Documentation/fb/cyblafb/whatsnew
new file mode 100644
index 00000000000..76c07a26e04
--- /dev/null
+++ b/Documentation/fb/cyblafb/whatsnew
@@ -0,0 +1,29 @@
+0.62
+====
+
+ - the vesafb parameter has been removed as I decided to allow the
+ feature without any special parameter.
+
+ - Cyblafb does not use the vga style of panning any longer, now the
+ "right view" register in the graphics engine IO space is used. Without
+ that change it was impossible to use all available memory, and without
+ access to all available memory it is impossible to ywrap.
+
+ - The imageblit function now uses hardware acceleration for all font
+ widths. Hardware blitting across pixel column 2048 is broken in the
+ cyberblade/i1 graphics core, but we work around that hardware bug.
+
+ - modes with vxres != xres are supported now.
+
+ - ywrap scrolling is supported now and the default. This is a big
+ performance gain.
+
+ - default video modes use vyres > yres and vxres > xres to allow
+ almost optimal scrolling speed for normal and rotated screens
+
+ - some features mainly usefull for debugging the upper layers of the
+ framebuffer system have been added, have a look at the code
+
+ - fixed: Oops after unloading cyblafb when reading /proc/io*
+
+ - we work around some bugs of the higher framebuffer layers.
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index cc8e3bf5001..3f04427c902 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -1151,7 +1151,7 @@ config FB_VOODOO1
config FB_CYBLA
tristate "Cyberblade/i1 support"
- depends on FB && PCI
+ depends on FB && PCI && X86_32 && !64BIT
select FB_CFB_IMAGEBLIT
select VIDEO_SELECT
---help---
diff --git a/drivers/video/cyblafb.c b/drivers/video/cyblafb.c
index 03fbe83d71a..e9f5dee67e3 100644
--- a/drivers/video/cyblafb.c
+++ b/drivers/video/cyblafb.c
@@ -7,11 +7,12 @@
* tridentfb.c by Jani Monoses
* see files above for further credits
*
- * TODO:
- *
*/
#define CYBLAFB_DEBUG 0
+#define CYBLAFB_KD_GRAPHICS_QUIRK 1
+
+#define CYBLAFB_PIXMAPSIZE 8192
#include <linux/config.h>
#include <linux/module.h>
@@ -22,7 +23,7 @@
#include <asm/types.h>
#include <video/cyblafb.h>
-#define VERSION "0.54"
+#define VERSION "0.62"
struct cyblafb_par {
u32 pseudo_pal[16];
@@ -32,7 +33,9 @@ struct cyblafb_par {
static struct fb_fix_screeninfo cyblafb_fix __devinitdata = {
.id = "CyBla",
.type = FB_TYPE_PACKED_PIXELS,
+ .xpanstep = 1,
.ypanstep = 1,
+ .ywrapstep = 1,
.visual = FB_VISUAL_PSEUDOCOLOR,
.accel = FB_ACCEL_NONE,
};
@@ -43,8 +46,9 @@ static int ref __devinitdata = 75;
static int fp __devinitdata;
static int crt __devinitdata;
static int memsize __devinitdata;
-static int vesafb __devinitdata;
+static int basestride;
+static int vesafb;
static int nativex;
static int center;
static int stretch;
@@ -52,26 +56,50 @@ static int pciwb = 1;
static int pcirb = 1;
static int pciwr = 1;
static int pcirr = 1;
+static int disabled;
static int verbosity;
static int displaytype;
-static void __iomem * io_virt; // iospace virtual memory address
-
-module_param(mode,charp,0);
-module_param(bpp,int,0);
-module_param(ref,int,0);
-module_param(fp,int,0);
-module_param(crt,int,0);
-module_param(nativex,int,0);
-module_param(center,int,0);
-module_param(stretch,int,0);
-module_param(pciwb,int,0);
-module_param(pcirb,int,0);
-module_param(pciwr,int,0);
-module_param(pcirr,int,0);
-module_param(memsize,int,0);
-module_param(verbosity,int,0);
-module_param(vesafb,int,0);
+static void __iomem *io_virt; // iospace virtual memory address
+
+module_param(mode, charp, 0);
+module_param(bpp, int, 0);
+module_param(ref, int, 0);
+module_param(fp, int, 0);
+module_param(crt, int, 0);
+module_param(nativex, int, 0);
+module_param(center, int, 0);
+module_param(stretch, int, 0);
+module_param(pciwb, int, 0);
+module_param(pcirb, int, 0);
+module_param(pciwr, int, 0);
+module_param(pcirr, int, 0);
+module_param(memsize, int, 0);
+module_param(verbosity, int, 0);
+
+//=========================================
+//
+// Well, we have to fix the upper layers.
+// Until this has been done, we work around
+// the bugs.
+//
+//=========================================
+
+#if (CYBLAFB_KD_GRAPHICS_QUIRK && CYBLAFB_DEBUG)
+ if (disabled) { \
+ printk("********\n");\
+ dump_stack();\
+ return val;\
+ }
+
+#elif CYBLAFB_KD_GRAPHICS_QUIRK
+#define KD_GRAPHICS_RETURN(val)\
+ if (disabled) {\
+ return val;\
+ }
+#else
+#define KD_GRAPHICS_RETURN(val)
+#endif
//=========================================
//
@@ -79,10 +107,10 @@ module_param(vesafb,int,0);
//
//=========================================
-#define out8(r,v) writeb(v,io_virt+r)
-#define out32(r,v) writel(v,io_virt+r)
-#define in8(r) readb(io_virt+r)
-#define in32(r) readl(io_virt+r)
+#define out8(r, v) writeb(v, io_virt + r)
+#define out32(r, v) writel(v, io_virt + r)
+#define in8(r) readb(io_virt + r)
+#define in32(r) readl(io_virt + r)
//======================================
//
@@ -90,47 +118,47 @@ module_param(vesafb,int,0);
//
//======================================
-static inline unsigned char read3X4(int reg)
+static inline u8 read3X4(u32 reg)
{
- out8(0x3D4,reg);
+ out8(0x3D4, reg);
return in8(0x3D5);
}
-static inline unsigned char read3C4(int reg)
+static inline u8 read3C4(u32 reg)
{
- out8(0x3C4,reg);
+ out8(0x3C4, reg);
return in8(0x3C5);
}
-static inline unsigned char read3CE(int reg)
+static inline u8 read3CE(u32 reg)
{
- out8(0x3CE,reg);
+ out8(0x3CE, reg);
return in8(0x3CF);
}
-static inline void write3X4(int reg,unsigned char val)
+static inline void write3X4(u32 reg, u8 val)
{
- out8(0x3D4,reg);
- out8(0x3D5,val);
+ out8(0x3D4, reg);
+ out8(0x3D5, val);
}
-static inline void write3C4(int reg,unsigned char val)
+static inline void write3C4(u32 reg, u8 val)
{
- out8(0x3C4,reg);
- out8(0x3C5,val);
+ out8(0x3C4, reg);
+ out8(0x3C5, val);
}
-static inline void write3CE(int reg,unsigned char val)
+static inline void write3CE(u32 reg, u8 val)
{
- out8(0x3CE,reg);
- out8(0x3CF,val);
+ out8(0x3CE, reg);
+ out8(0x3CF, val);
}
-static inline void write3C0(int reg,unsigned char val)
+static inline void write3C0(u32 reg, u8 val)
{
- in8(0x3DA); // read to reset index
- out8(0x3C0,reg);
- out8(0x3C0,val);
+ in8(0x3DA); // read to reset index
+ out8(0x3C0, reg);
+ out8(0x3C0, val);
}
//=================================================
@@ -139,58 +167,62 @@ static inline void write3C0(int reg,unsigned char val)
//
//=================================================
-static inline void enable_mmio(void)
+static void enable_mmio(void)
{
- int tmp;
+ u8 tmp;
- outb(0x0B,0x3C4);
+ outb(0x0B, 0x3C4);
inb(0x3C5); // Set NEW mode
- outb(SR0E,0x3C4); // write enable a lot of extended ports
- outb(0x80,0x3C5);
+ outb(SR0E, 0x3C4); // write enable a lot of extended ports
+ outb(0x80, 0x3C5);
- outb(SR11,0x3C4); // write enable those extended ports that
- outb(0x87,0x3C5); // are not affected by SR0E_New
+ outb(SR11, 0x3C4); // write enable those extended ports that
+ outb(0x87, 0x3C5); // are not affected by SR0E_New
- outb(CR1E,0x3d4); // clear write protect bit for port 0x3c2
- tmp=inb(0x3d5) & 0xBF;
- outb(CR1E,0x3d4);
- outb(tmp,0x3d5);
+ outb(CR1E, 0x3d4); // clear write protect bit for port 0x3c2
+ tmp = inb(0x3d5) & 0xBF;
+ outb(CR1E, 0x3d4);
+ outb(tmp, 0x3d5);
- outb(CR39,0x3D4);
- outb(inb(0x3D5)|0x01,0x3D5); // Enable mmio, everything else untouched
+ outb(CR39, 0x3D4);
+ outb(inb(0x3D5) | 0x01, 0x3D5); // Enable mmio
}
//=================================================
//
// Set pixel clock VCLK1
-// - multipliers set elswhere
-// - freq in units of 0.01 MHz
+// - multipliers set elswhere
+// - freq in units of 0.01 MHz
+//
+// Hardware bug: SR18 >= 250 is broken for the
+// cyberblade/i1
//
//=================================================
static void set_vclk(struct cyblafb_par *par, int freq)
{
- u32 m,n,k;
- int f,fi,d,di;
- u8 lo=0,hi=0;
+ u32 m, n, k;
+ int f, fi, d, di;
+ u8 lo = 0, hi = 0;
d = 2000;
k = freq >= 10000 ? 0 : freq >= 5000 ? 1 : freq >= 2500 ? 2 : 3;
- for(m = 0;m<64;m++)
- for(n = 0;n<250;n++) { // max 249 is a hardware limit for cybla/i1 !
- fi = (int)(((5864727*(n+8))/((m+2)*(1<<k)))>>12);
- if ((di = abs(fi - freq)) < d) {
- d = di;
- f = fi;
- lo = (u8) n;
- hi = (u8) ((k<<6) | m);
+ for (m = 0; m < 64; m++)
+ for (n = 0; n < 250; n++) {
+ fi = (int)(((5864727 * (n + 8)) /
+ ((m + 2) * (1 << k))) >> 12);
+ if ((di = abs(fi - freq)) < d) {
+ d = di;
+ f = fi;
+ lo = (u8) n;
+ hi = (u8) ((k << 6) | m);
+ }
}
- }
- write3C4(SR19,hi);
- write3C4(SR18,lo);
- if(verbosity > 1)
+ write3C4(SR19, hi);
+ write3C4(SR18, lo);
+ if (verbosity > 0)
output("pixclock = %d.%02d MHz, k/m/n %x %x %x\n",
- freq/100,freq%100,(hi&0xc0)>>6,hi&0x3f,lo);
+ freq / 100, freq % 100, (hi & 0xc0) >> 6, hi & 0x3f, lo);
}
//================================================
@@ -199,83 +231,83 @@ static void set_vclk(struct cyblafb_par *par, int freq)
//
//================================================
-static void cyblafb_setup_GE(int pitch,int bpp)
+static void cyblafb_setup_GE(int pitch, int bpp)
{
- int base = (pitch>>3)<<20;
+ KD_GRAPHICS_RETURN();
switch (bpp) {
- case 8: base |= (0<<29); break;
- case 15: base |= (5<<29); break;
- case 16: base |= (1<<29); break;
- case 24:
- case 32: base |= (2<<29); break;
+ case 8:
+ basestride = ((pitch >> 3) << 20) | (0 << 29);
+ break;
+ case 15:
+ basestride = ((pitch >> 3) << 20) | (5 << 29);
+ break;
+ case 16:
+ basestride = ((pitch >> 3) << 20) | (1 << 29);
+ break;
+ case 24:
+ case 32:
+ basestride = ((pitch >> 3) << 20) | (2 << 29);
+ break;
}
- write3X4(CR36,0x90); // reset GE
- write3X4(CR36,0x80); // enable GE
-
- out32(GE24,1<<7); // reset all GE pointers
- out32(GE24,0);
-
- write3X4(CR2D,0x00); // GE Timinigs, no delays
-
- out32(GEB8,base); // Destination Stride / Buffer Base 0, p 133
- out32(GEBC,base); // Destination Stride / Buffer Base 1, p 133
- out32(GEC0,base); // Destination Stride / Buffer Base 2, p 133
- out32(GEC4,base); // Destination Stride / Buffer Base 3, p 133
- out32(GEC8,base); // Source Stride / Buffer Base 0, p 133
- out32(GECC,base); // Source Stride / Buffer Base 1, p 133
- out32(GED0,base); // Source Stride / Buffer Base 2, p 133
- out32(GED4,base); // Source Stride / Buffer Base 3, p 133
- out32(GE6C,0); // Pattern and Style, p 129, ok
+ write3X4(CR36, 0x90); // reset GE
+ write3X4(CR36, 0x80); // enable GE
+ out32(GE24, 1 << 7); // reset all GE pointers by toggling
+ out32(GE24, 0); // d7 of GE24
+ write3X4(CR2D, 0x00); // GE Timinigs, no delays
+ out32(GE6C, 0); // Pattern and Style, p 129, ok
}
//=====================================================================
//
-// Although this is a .fb_sync function that could be enabled in
-// cyblafb_ops, we do not include it there. We sync immediately before
-// new GE operations to improve performance.
+// Cyberblade specific syncing
+//
+// A timeout might be caused by disabled mmio.
+// Cause:
+// - bit CR39 & 1 == 0 upon return, X trident driver bug
+// - kdm bug (KD_GRAPHICS not set on first switch)
+// - kernel design flaw (it believes in the correctness
+// of kdm/X
+// First we try to sync ignoring that problem, as most of the
+// time that will succeed immediately and the enable_mmio()
+// would only degrade performance.
//
//=====================================================================
static int cyblafb_sync(struct fb_info *info)
{
- int status, i=100000;
- while( ((status=in32(GE20)) & 0xFA800000) && i != 0)
+ u32 status, i = 100000;
+
+ KD_GRAPHICS_RETURN(0);
+
+ while (((status = in32(GE20)) & 0xFe800000) && i != 0)
i--;
if (i == 0) {
- // The timeout might be caused by disabled mmio.
- // Cause:
- // - bit CR39 & 1 == 0 upon return, X trident driver bug
- // - kdm bug (KD_GRAPHICS not set on first switch)
- // - kernel design flaw (it believes in the correctness
- // of kdm/X
- // So we make sure that mmio is enabled first ...
enable_mmio();
-// show_trace(NULL,&status);
- i=1000000;
- while( ((status=in32(GE20)) & 0xFA800000) && i != 0)
+ i = 1000000;
+ while (((status = in32(GE20)) & 0xFA800000) && i != 0)
i--;
if (i == 0) {
- output("GE Timeout, status: %x\n",status);
- if(status & 0x80000000)
+ output("GE Timeout, status: %x\n", status);
+ if (status & 0x80000000)
output("Bresenham Engine : Busy\n");
- if(status & 0x40000000)
+ if (status & 0x40000000)
output("Setup Engine : Busy\n");
- if(status & 0x20000000)
+ if (status & 0x20000000)
output("SP / DPE : Busy\n");
- if(status & 0x10000000)
+ if (status & 0x10000000)
output("Memory Interface : Busy\n");
- if(status & 0x08000000)
+ if (status & 0x08000000)
output("Com Lst Proc : Busy\n");
- if(status & 0x04000000)
+ if (status & 0x04000000)
output("Block Write : Busy\n");
- if(status & 0x02000000)
+ if (status & 0x02000000)
output("Command Buffer : Full\n");
- if(status & 0x01000000)
+ if (status & 0x01000000)
output("RESERVED : Busy\n");
- if(status & 0x00800000)
+ if (status & 0x00800000)
output("PCI Write Buffer : Busy\n");
cyblafb_setup_GE(info->var.xres,
info->var.bits_per_pixel);
@@ -291,142 +323,193 @@ static int cyblafb_sync(struct fb_info *info)
//
//==============================
-static void cyblafb_fillrect(struct fb_info * info,
- const struct fb_fillrect *fr)
+static void cyblafb_fillrect(struct fb_info *info, const struct fb_fillrect *fr)
{
- int bpp = info->var.bits_per_pixel;
- int col;
+ u32 bpp = info->var.bits_per_pixel, col, desty, height;
+
+ KD_GRAPHICS_RETURN();
switch (bpp) {
- default:
- case 8: col = fr->color;
- col |= col <<8;
- col |= col <<16;
- break;
- case 16: col = ((u32 *)(info->pseudo_palette))[fr->color];
- col |= col <<16;
- break;
- case 32: col = ((u32 *)(info->pseudo_palette))[fr->color];
- break;
+ default:
+ case 8:
+ col = fr->color;
+ col |= col << 8;
+ col |= col << 16;
+ break;
+ case 16:
+ col = ((u32 *) (info->pseudo_palette))[fr->color];
+ col |= col << 16;
+ break;
+ case 32:
+ col = ((u32 *) (info->pseudo_palette))[fr->color];
+ break;
}
- cyblafb_sync(info);
-
- out32(GE60,col);
- out32(GE48,fr->rop ? 0x66:ROP_S);
- out32(GE44,0x20000000|1<<19|1<<4|2<<2);
- out32(GE08,point(fr->dx,fr->dy));
- out32(GE0C,point(fr->dx+fr->width-1,fr->dy+fr->height-1));
-
+ desty = fr->dy;
+ height = fr->height;
+ while (height) {
+ out32(GEB8, basestride | ((desty * info->var.xres_virtual *
+ bpp) >> 6));
+ out32(GE60, col);
+ out32(GE48, fr->rop ? 0x66 : ROP_S);
+ out32(GE44, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2);
+ out32(GE08, point(fr->dx, 0));
+ out32(GE0C, point(fr->dx + fr->width - 1,
+ height > 4096 ? 4095 : height - 1));
+ if (likely(height <= 4096))
+ return;
+ desty += 4096;
+ height -= 4096;
+ }
}
-//==============================
+//================================================
//
// Cyberblade specific copyarea
//
-//==============================
+// This function silently assumes that it never
+// will be called with width or height exceeding
+// 4096.
+//
+//================================================
-static void cyblafb_copyarea(struct fb_info *info,
- const struct fb_copyarea *ca)
+static void cyblafb_copyarea(struct fb_info *info, const struct fb_copyarea *ca)
{
- __u32 s1,s2,d1,d2;
- int direction;
+ u32 s1, s2, d1, d2, direction;
+
+ KD_GRAPHICS_RETURN();
+
+ s1 = point(ca->sx, 0);
+ s2 = point(ca->sx + ca->width - 1, ca->height - 1);
+ d1 = point(ca->dx, 0);
+ d2 = point(ca->dx + ca->width - 1, ca->height - 1);
- s1 = point(ca->sx,ca->sy);
- s2 = point(ca->sx+ca->width-1,ca->sy+ca->height-1);
- d1 = point(ca->dx,ca->dy);
- d2 = point(ca->dx+ca->width-1,ca->dy+ca->height-1);
if ((ca->sy > ca->dy) || ((ca->sy == ca->dy) && (ca->sx > ca->dx)))
direction = 0;
else
direction = 2;
- cyblafb_sync(info);
-
- out32(GE44,0xa0000000|1<<19|1<<2|direction);
- out32(GE00,direction?s2:s1);
- out32(GE04,direction?s1:s2);
- out32(GE08,direction?d2:d1);
- out32(GE0C,direction?d1:d2);
-
+ out32(GEB8, basestride | ((ca->dy * info->var.xres_virtual *
+ info->var.bits_per_pixel) >> 6));
+ out32(GEC8, basestride | ((ca->sy * info->var.xres_virtual *
+ info->var.bits_per_pixel) >> 6));
+ out32(GE44, 0xa0000000 | 1 << 19 | 1 << 2 | direction);
+ out32(GE00, direction ? s2 : s1);
+ out32(GE04, direction ? s1 : s2);
+ out32(GE08, direction ? d2 : d1);
+ out32(GE0C, direction ? d1 : d2);
}
//=======================================================================
//
// Cyberblade specific imageblit
//
-// Accelerated for the most usual case, blitting 1-bit deep character
-// character images. Everything else is passed to the generic imageblit.
+// Accelerated for the most usual case, blitting 1 - bit deep
+// character images. Everything else is passed to the generic imageblit
+// unless it is so insane that it is better to printk an alert.
+//
+// Hardware bug: _Never_ blit across pixel column 2048, that will lock
+// the system. We split those blit requests into three blitting
+// operations.
//
//=======================================================================
static void cyblafb_imageblit(struct fb_info *info,
const struct fb_image *image)
{
-
u32 fgcol, bgcol;
+ u32 *pd = (u32 *) image->data;
+ u32 bpp = info->var.bits_per_pixel;
- int i;
- int bpp = info->var.bits_per_pixel;
- int index = 0;
- int index_end=image->height * image->width / 8;
- int width_dds=image->width / 32;
- int width_dbs=image->width % 32;
-
- if (image->depth != 1 || bpp < 8 || bpp > 32 || bpp % 8 != 0 ||
- image->width % 8 != 0 || image->width == 0 || image->height == 0) {
- cfb_imageblit(info,image);
+ KD_GRAPHICS_RETURN();
+
+ // Used only for drawing the penguine (image->depth > 1)
+ if (image->depth != 1) {
+ cfb_imageblit(info, image);
+ return;
+ }
+ // That should never happen, but it would be fatal
+ if (image->width == 0 || image->height == 0) {
+ output("imageblit: width/height 0 detected\n");
return;
}
if (info->fix.visual == FB_VISUAL_TRUECOLOR ||
info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
- fgcol = ((u32*)(info->pseudo_palette))[image->fg_color];
- bgcol = ((u32*)(info->pseudo_palette))[image->bg_color];
+ fgcol = ((u32 *) (info->pseudo_palette))[image->fg_color];
+ bgcol = ((u32 *) (info->pseudo_palette))[image->bg_color];
} else {
fgcol = image->fg_color;
bgcol = image->bg_color;
}
switch (bpp) {
- case 8:
- fgcol |= fgcol <<8; fgcol |= fgcol <<16;
- bgcol |= bgcol <<8; bgcol |= bgcol <<16;
- break;
- case 16:
- fgcol |= fgcol <<16;
- bgcol |= bgcol <<16;
- break;
- default:
- break;
+ case 8:
+ fgcol |= fgcol << 8;
+ bgcol |= bgcol << 8;
+ case 16:
+ fgcol |= fgcol << 16;
+ bgcol |= bgcol << 16;
+ default:
+ break;
}
- cyblafb_sync(info);
-
- out32(GE60,fgcol);
- out32(GE64,bgcol);
- out32(GE44,0xa0000000 | 1<<20 | 1<<19);
- out32(GE08,point(image->dx,image->dy));
- out32(GE0C,point(image->dx+image->width-1,image->dy+image->height-1));
+ out32(GEB8, basestride | ((image->dy * info->var.xres_virtual *
+ bpp) >> 6));
+ out32(GE60, fgcol);
+ out32(GE64, bgcol);
+
+ if (!(image->dx < 2048 && (image->dx + image->width - 1) >= 2048)) {
+ u32 dds = ((image->width + 31) >> 5) * image->height;
+ out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
+ out32(GE08, point(image->dx, 0));
+ out32(GE0C, point(image->dx + image->width - 1,
+ image->height - 1));
+ while (dds--)
+ out32(GE9C, *pd++);
+ } else {
+ int i, j;
+ u32 ddstotal = (image->width + 31) >> 5;
+ u32 ddsleft = (2048 - image->dx + 31) >> 5;
+ u32 skipleft = ddstotal - ddsleft;
+
+ out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
+ out32(GE08, point(image->dx, 0));
+ out32(GE0C, point(2048 - 1, image->height - 1));
+ for (i = 0; i < image->height; i++) {
+ for (j = 0; j < ddsleft; j++)
+ out32(GE9C, *pd++);
+ pd += skipleft;
+ }
- while(index < index_end) {
- const char *p = image->data + index;
- for(i=0;i<width_dds;i++) {
- out32(GE9C,*(u32*)p);
- p+=4;
- index+=4;
+ if (image->dx % 32) {
+ out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
+ out32(GE08, point(2048, 0));
+ if (image->width > ddsleft << 5)
+ out32(GE0C, point(image->dx + (ddsleft << 5) -
+ 1, image->height - 1));
+ else
+ out32(GE0C, point(image->dx + image->width - 1,
+ image->height - 1));
+ pd = ((u32 *) image->data) + ddstotal - skipleft - 1;
+ for (i = 0; i < image->height; i++) {
+ out32(GE9C, swab32(swab32(*pd) << ((32 -
+ (image->dx & 31)) & 31)));
+ pd += ddstotal;
+ }
}
- switch(width_dbs) {
- case 0: break;
- case 8: out32(GE9C,*(u8*)p);
- index+=1;
- break;
- case 16: out32(GE9C,*(u16*)p);
- index+=2;
- break;
- case 24: out32(GE9C,*(u16*)p | *(u8*)(p+2)<<16);
- index+=3;
- break;
+
+ if (skipleft) {
+ out32(GE44, 0xa0000000 | 1 << 20 | 1 << 19);
+ out32(GE08, point(image->dx + (ddsleft << 5), 0));
+ out32(GE0C, point(image->dx + image->width - 1,
+ image->height - 1));
+ pd = (u32 *) image->data;
+ for (i = 0; i < image->height; i++) {
+ pd += ddsleft;
+ for (j = 0; j < skipleft; j++)
+ out32(GE9C, *pd++);
+ }
}
}
}
@@ -443,7 +526,6 @@ static int cyblafb_check_var(struct fb_var_screeninfo *var,
struct fb_info *info)
{
int bpp = var->bits_per_pixel;
- int s,t,maxvyres;
//
// we try to support 8, 16, 24 and 32 bpp modes,
@@ -453,9 +535,9 @@ static int cyblafb_check_var(struct fb_var_screeninfo *var,
// (This is what tridentfb does ... will be changed in the future)
//
//
- if ( bpp % 8 != 0 || bpp < 8 || bpp >32)
+ if (bpp % 8 != 0 || bpp < 8 || bpp > 32)
bpp = 8;
- if (bpp == 24 )
+ if (bpp == 24)
bpp = var->bits_per_pixel = 32;
//
@@ -472,65 +554,93 @@ static int cyblafb_check_var(struct fb_var_screeninfo *var,
return -EINVAL;
//
- // xres != xres_virtual is broken, fail if such an
- // unusual mode is requested
+ // we do not allow vclk to exceed 230 MHz. If the requested
+ // vclk is too high, we default to 200 MHz
//
- if (var->xres != var->xres_virtua