NGLE¶
This page aims to reveal those pieces needed for hardware acceleration on NGLE family of graphics cards, which vendor decided to keep obscure.
Copy area¶
ngledoblt.S is from X11 support patch for MkLinux on PA-RISC. It comes in assembler form only, so here’s the translation
.import ngleScreenPrivIndex,data
ngleDepth8_CopyAreaFromToScreen
ldo 0x40(sp),sp
stw arg0,-0x64(sp) ;pSrcDraw
stw arg1,-0x68(sp) ;pDstDraw
stw arg2,-0x6c(sp) ;pptSrc->x
stw arg3,-0x70(sp) ;pptSrc->y
ldw -0x68(sp),r1 ;pDstDraw
ldw 0x10(r1),r31 ;->pScreen
ldw 0x19c(r31),t4 ;->devPrivates
ldil L%ngleScreenPrivIndex,t3
ldw R%ngleScreenPrivIndex(t3),t3
ldwx,s t3(t4),t2 ;devPrivates[ngleScreenPrivIndex].ptr => NgleScreenPrivPtr pScreenPriv
stw t2,-0x38(sp)
ldw -0x38(sp),t1 ;pScreenPriv
ldw 0x14(t1),r1 ;->pDregs
stw r1,-0x34(sp)
ldw -0x34(sp),r31
zdepi 1,10,1,t4
add t4,r31,t3 ;pDregs+0x200000 => REG_15b0
stw t3,-0x28(sp)
ldw -0x28(sp),t2
;SETUP_HW()
$ngle2:
ldb 0(t2),t1 ;read1(REG_15b0) => val1
extrs t1,31,8,r1
stb r1,-0x2c(sp)
ldb -0x2c(sp),r31
extrs r31,31,8,t4
comibf,=,n 0,t4,$ngle1 ;if (val1) goto ngle1
ldw -0x28(sp),t3
ldb 0(t3),t2 ;read1(REG_15b0) => val1
extrs t2,31,8,t1
stb t1,-0x2c(sp)
$ngle1:
ldb -0x2c(sp),r1
extrs r1,31,8,r31
comibf,=,n 0,r31,$ngle2 ;if (val1) goto ngle2
;
ldw -0x28(sp),t2
ldw -0x38(sp),t4 ;pScreenPriv
ldw 0x10(t4),t3 ;->deviceID
.word 0x22B88578 /* ldil 0x2bcb0000,t2 */
ldo 0x15a(t2),t1
combf,=,n t3,t1,$ngle3 ;if (deviceID != S9000_ID_HCRX) goto ngle3
ldw -0x34(sp),r1
.word 0x23e10274 /* ldil 0x13a02000,r31 */
.word 0x282c0000 /* addil 0x18000,r1 */
stw r31,0(r1) ;write4(0x13a02000,REG_10)
b $ngle4
ldw -0x78(sp),t2 ;arg5 = alu
$ngle3:
ldw -0x34(sp),t4
.word 0x22802274 /* ldil 0x13a01000,t3 */
.word 0x2a6c0000 /* addil 0x18000,t4 */
stw t3,0(r1) ;write4(0x13a01000,REG_10)
ldw -0x78(sp),t2
$ngle4:
.word 0x23e00460 /* ldil 0x23000000,r31 */
zdep t2,23,4,r1 ;(alu << (31-23)) & 0x00000f00
or r1,r31,t4 ;| 0x23000000 => val2
ldw -0x34(sp),t3
.word 0x2a8c0000 /* addil 0x18000,t3 */
stw t4,0x1c(r1) ;write4(val2,REG_14)
ldw -0x34(sp),t2
ldw -0x7c(sp),t1 ;arg6 = planeMask
.word 0x2aac0000 /* addil 0x18000,t2 */
stw t1,0x18(r1) ;write4(planeMask,REG_13)
ldw -0x6c(sp),r1
sth r1,-0x30(sp) ;x
ldw -0x70(sp),r31
sth r31,-0x2e(sp) ;y
ldw -0x34(sp),t4
ldw -0x30(sp),t3
stw t3,0x808(t4) ;write4((x << 16) | y,REG_24)
ldw -0x74(sp),t2 ;arg4 = pbox
ldh 4(t2),t1 ;->x2
extrs t1,31,16,r1
ldw -0x74(sp),r31 ;pbox
ldh 0(r31),t4 ;->x1
extrs t4,31,16,t3
sub r1,t3,t2
sth t2,-0x30(sp) ;x2 - x1 => w
ldw -0x74(sp),t1 ;pbox
ldh 6(t1),r1 ;->y2
extrs r1,31,16,r31
ldw -0x74(sp),t4 ;pbox
ldh 2(t4),t3 ;->y1
extrs t3,31,16,t2
sub r31,t2,t1
sth t1,-0x2e(sp) ;y2 - y1 => h
ldw -0x34(sp),r1
ldw -0x30(sp),r31
stw r31,0x804(r1) ;write4((w << 16) | h,REG_7)
ldw -0x74(sp),t4 ;pbox
ldh 0(t4),t3 ;->x1
extrs t3,31,16,t2
sth t2,-0x30(sp)
ldw -0x74(sp),t1 ;pbox
ldh 2(t1),r1 ;->y1
extrs r1,31,16,r31
sth r31,-0x2e(sp)
ldw -0x34(sp),t4
ldw -0x30(sp),t3
stw t3,0xb00(t4) ;write4((x1 << 16) | y1,REG_25)
bv r0(rp)
ldo -0x40(sp),sp
ngleDepth24_CopyAreaFromToScreen differs only in reg10 init: write4(-0x445f6000,reg10) which resembles SETUP_FB() routine.
ngledoblt.o.8.07 is an original blob realizing bit blit function provided by vendor to X11 project, which matches ngledoblt.S. 8.07 means max STI ROM revision:
$CODE$:00000000 # Input MD5 : 195E3A8D90B0DFE5D09F3E05E2B4D9B7
$CODE$:00000000
$CODE$:00000000 ngleDepth8_CopyAreaFromToScreen:
$CODE$:00000000
$CODE$:00000000 planeMask = 0x3C
$CODE$:00000000 alu = 0x38
$CODE$:00000000 pbox = 0x34
$CODE$:00000000 REG_15b0 = -0x3C
$CODE$:00000000 val1 = -0x43
$CODE$:00000000 x = -0x44
$CODE$:00000000 y = -0x46
$CODE$:00000000 pDregs = -0x48
$CODE$:00000000 pScreenPriv = -0x4C
$CODE$:00000000
$CODE$:00000000 ldo 0x80(%sp), %sp
$CODE$:00000004 ldw 0x10(%r25), %r1
$CODE$:00000008 ldw 0x19C(%r1), %r31
$CODE$:0000000C addil 0, %dp, %r1
$CODE$:00000010 ldw 0(%r1), %r19
$CODE$:00000014 ldw,s %r19(%r31), %r20
$CODE$:00000018 stw %r20, -(0x80+pScreenPriv)(%sp)
$CODE$:0000001C ldw -(0x80+pScreenPriv)(%sp), %r21
$CODE$:00000020 ldw 0x14(%r21), %r22
$CODE$:00000024 stw %r22, -(0x80+pDregs)(%sp)
$CODE$:00000028 ldw -(0x80+pDregs)(%sp), %r1
$CODE$:0000002C addil 0x200000, %r1, %r1
$CODE$:00000030 stw %r1, -(0x80+REG_15b0)(%sp)
$CODE$:00000034 ldw -(0x80+REG_15b0)(%sp), %r31
$CODE$:00000034
$CODE$:00000038
$CODE$:00000038 ngle2: # CODE XREF: ngleDepth8_CopyAreaFromToScreen+58
$CODE$:00000038 ldb 0(%r31), %r19
$CODE$:0000003C stb %r19, -(0x80+val1)(%sp)
$CODE$:00000040 ldb -(0x80+val1)(%sp), %r20
$CODE$:00000044 cmpib,<>,n 0, %r20, ngle1
$CODE$:00000044
$CODE$:00000048 ldw -(0x80+REG_15b0)(%sp), %r21
$CODE$:0000004C ldb 0(%r21), %r22
$CODE$:00000050 stb %r22, -(0x80+val1)(%sp)
$CODE$:00000050
$CODE$:00000054
$CODE$:00000054 ngle1: # CODE XREF: ngleDepth8_CopyAreaFromToScreen+44
$CODE$:00000054 ldb -(0x80+val1)(%sp), %r1
$CODE$:00000058 cmpib,<>,n 0, %r1, ngle2
$CODE$:00000058
$CODE$:0000005C ldw -(0x80+REG_15b0)(%sp), %r31
$CODE$:00000060 ldw -(0x80+pDregs)(%sp), %r31
$CODE$:00000064 ldil 0x13A01000, %r19
$CODE$:00000068 addil 0x18000, %r31, %r1
$CODE$:0000006C stw %r19, 0(%r1)
$CODE$:00000070 ldw -(0x80+alu)(%sp), %r20
$CODE$:00000074 ldil 0x23000000, %r1
$CODE$:00000078 depw,z %r20, 23, 4, %r22
$CODE$:0000007C or %r22, %r1, %r31
$CODE$:00000080 ldw -(0x80+pDregs)(%sp), %r19
$CODE$:00000084 addil 0x18000, %r19, %r1
$CODE$:00000088 stw %r31, 0x1C(%r1)
$CODE$:0000008C ldw -(0x80+planeMask)(%sp), %r20
$CODE$:00000090 ldw -(0x80+pDregs)(%sp), %r21
$CODE$:00000094 addil 0x18000, %r21, %r1
$CODE$:00000098 stw %r20, 0x18(%r1)
$CODE$:0000009C sth %r24, -(0x80+x)(%sp)
$CODE$:000000A0 sth %r23, -(0x80+y)(%sp)
$CODE$:000000A4 ldo -(0x80+x)(%sp), %r22
$CODE$:000000A8 ldw -(0x80+pDregs)(%sp), %r1
$CODE$:000000AC ldo 0x808(%r1), %r31
$CODE$:000000B0 ldw 0(%r22), %r19
$CODE$:000000B4 stw %r19, 0(%r31)
$CODE$:000000B8 ldw -(0x80+pbox)(%sp), %r20
$CODE$:000000BC ldh 4(%r20), %r21
$CODE$:000000C0 extrw %r21, 31, 16, %r1
$CODE$:000000C4 ldw -(0x80+pbox)(%sp), %r31
$CODE$:000000C8 ldh 0(%r31), %r19
$CODE$:000000CC extrw %r19, 31, 16, %r20
$CODE$:000000D0 sub %r1, %r20, %r21
$CODE$:000000D4 sth %r21, -(0x80+x)(%sp)
$CODE$:000000D8 ldw -(0x80+pbox)(%sp), %r1
$CODE$:000000DC ldh 6(%r1), %r31
$CODE$:000000E0 extrw %r31, 31, 16, %r19
$CODE$:000000E4 ldw -(0x80+pbox)(%sp), %r20
$CODE$:000000E8 ldh 2(%r20), %r21
$CODE$:000000EC extrw %r21, 31, 16, %r1
$CODE$:000000F0 sub %r19, %r1, %r31
$CODE$:000000F4 sth %r31, -(0x80+y)(%sp)
$CODE$:000000F8 ldw -(0x80+pDregs)(%sp), %r19
$CODE$:000000FC ldo 0x804(%r19), %r20
$CODE$:00000100 ldw 0(%r22), %r21
$CODE$:00000104 stw %r21, 0(%r20)
$CODE$:00000108 ldw -(0x80+pbox)(%sp), %r1
$CODE$:0000010C ldh 0(%r1), %r31
$CODE$:00000110 sth %r31, -(0x80+x)(%sp)
$CODE$:00000114 ldw -(0x80+pbox)(%sp), %r19
$CODE$:00000118 ldh 2(%r19), %r20
$CODE$:0000011C sth %r20, -(0x80+y)(%sp)
$CODE$:00000120 ldw -(0x80+pDregs)(%sp), %r21
$CODE$:00000124 ldo 0xB00(%r21), %r1
$CODE$:00000128 ldw 0(%r22), %r31
$CODE$:0000012C stw %r31, 0(%r1)
$CODE$:00000130 bv %r0(%rp)
$CODE$:00000134 ldo -0x80(%sp), %sp
Resurrected and properly working ngledoblt.c to be used under X11R6.3 and vendor cfb X server:
void ngleDepth8_CopyAreaFromToScreen(DrawablePtr pSrcDraw, DrawablePtr pDstDraw,
short srcx, short srcy, BoxPtr pbox, int alu, unsigned long planeMask)
{
NgleScreenPrivPtr pScreenPriv;
NgleHdwPtr pDregs;
pScreenPriv = NGLE_SCREEN_PRIV(pDstDraw->pScreen);
pDregs = (NgleHdwPtr) pScreenPriv->pDregs;
SETUP_HW(pDregs);
if (pScreenPriv->deviceID != S9000_ID_HCRX)
pDregs->reg10 = 0x13a01000;
else
pDregs->reg10 = 0x13a02000;
pDregs->reg14.all = ((alu << 8) & 0x00000f00) | 0x23000000; // raster op
pDregs->reg13 = planeMask;
pDregs->reg24.all = (srcx << 16) | srcy;
pDregs->reg7.all = ((pbox->x2 - pbox->x1) << 16) | (pbox->y2 - pbox->y1);
pDregs->reg25.all = (pbox->x1 << 16) | pbox->y1; // destination
}
Rough x11perf results under MkLinux showing the difference
Type |
scroll10 |
scroll100 |
scroll500 |
copywinwin10 |
copywinwin100 |
copywinwin500 |
|---|---|---|---|---|---|---|
soft |
12300 |
457 |
21 |
15700 |
432 |
20 |
hw |
26700 |
3380 |
157 |
26800 |
3380 |
158 |
copyright and license
Copyright 2015 Artem <dukzcry@ya.ru>
Distributed under the Creative Commons License