--- /dev/null
+/* fuc microcode for copy engine on gt215- chipsets
+ *
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * 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 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
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#ifdef GT215
+.section #gt215_pce_data
+#else
+.section #gf100_pce_data
+#endif
+
+ctx_object: .b32 0
+#ifdef GT215
+ctx_dma:
+ctx_dma_query: .b32 0
+ctx_dma_src: .b32 0
+ctx_dma_dst: .b32 0
+#endif
+.equ #ctx_dma_count 3
+ctx_query_address_high: .b32 0
+ctx_query_address_low: .b32 0
+ctx_query_counter: .b32 0
+ctx_src_address_high: .b32 0
+ctx_src_address_low: .b32 0
+ctx_src_pitch: .b32 0
+ctx_src_tile_mode: .b32 0
+ctx_src_xsize: .b32 0
+ctx_src_ysize: .b32 0
+ctx_src_zsize: .b32 0
+ctx_src_zoff: .b32 0
+ctx_src_xoff: .b32 0
+ctx_src_yoff: .b32 0
+ctx_src_cpp: .b32 0
+ctx_dst_address_high: .b32 0
+ctx_dst_address_low: .b32 0
+ctx_dst_pitch: .b32 0
+ctx_dst_tile_mode: .b32 0
+ctx_dst_xsize: .b32 0
+ctx_dst_ysize: .b32 0
+ctx_dst_zsize: .b32 0
+ctx_dst_zoff: .b32 0
+ctx_dst_xoff: .b32 0
+ctx_dst_yoff: .b32 0
+ctx_dst_cpp: .b32 0
+ctx_format: .b32 0
+ctx_swz_const0: .b32 0
+ctx_swz_const1: .b32 0
+ctx_xcnt: .b32 0
+ctx_ycnt: .b32 0
+.align 256
+
+dispatch_table:
+// mthd 0x0000, NAME
+.b16 0x000 1
+.b32 #ctx_object ~0xffffffff
+// mthd 0x0100, NOP
+.b16 0x040 1
+.b32 0x00010000 + #cmd_nop ~0xffffffff
+// mthd 0x0140, PM_TRIGGER
+.b16 0x050 1
+.b32 0x00010000 + #cmd_pm_trigger ~0xffffffff
+#ifdef GT215
+// mthd 0x0180-0x018c, DMA_
+.b16 0x060 #ctx_dma_count
+dispatch_dma:
+.b32 0x00010000 + #cmd_dma ~0xffffffff
+.b32 0x00010000 + #cmd_dma ~0xffffffff
+.b32 0x00010000 + #cmd_dma ~0xffffffff
+#endif
+// mthd 0x0200-0x0218, SRC_TILE
+.b16 0x80 7
+.b32 #ctx_src_tile_mode ~0x00000fff
+.b32 #ctx_src_xsize ~0x0007ffff
+.b32 #ctx_src_ysize ~0x00001fff
+.b32 #ctx_src_zsize ~0x000007ff
+.b32 #ctx_src_zoff ~0x00000fff
+.b32 #ctx_src_xoff ~0x0007ffff
+.b32 #ctx_src_yoff ~0x00001fff
+// mthd 0x0220-0x0238, DST_TILE
+.b16 0x88 7
+.b32 #ctx_dst_tile_mode ~0x00000fff
+.b32 #ctx_dst_xsize ~0x0007ffff
+.b32 #ctx_dst_ysize ~0x00001fff
+.b32 #ctx_dst_zsize ~0x000007ff
+.b32 #ctx_dst_zoff ~0x00000fff
+.b32 #ctx_dst_xoff ~0x0007ffff
+.b32 #ctx_dst_yoff ~0x00001fff
+// mthd 0x0300-0x0304, EXEC, WRCACHE_FLUSH
+.b16 0xc0 2
+.b32 0x00010000 + #cmd_exec ~0xffffffff
+.b32 0x00010000 + #cmd_wrcache_flush ~0xffffffff
+// mthd 0x030c-0x0340, various stuff
+.b16 0xc3 14
+.b32 #ctx_src_address_high ~0x000000ff
+.b32 #ctx_src_address_low ~0xffffffff
+.b32 #ctx_dst_address_high ~0x000000ff
+.b32 #ctx_dst_address_low ~0xffffffff
+.b32 #ctx_src_pitch ~0x0007ffff
+.b32 #ctx_dst_pitch ~0x0007ffff
+.b32 #ctx_xcnt ~0x0000ffff
+.b32 #ctx_ycnt ~0x00001fff
+.b32 #ctx_format ~0x0333ffff
+.b32 #ctx_swz_const0 ~0xffffffff
+.b32 #ctx_swz_const1 ~0xffffffff
+.b32 #ctx_query_address_high ~0x000000ff
+.b32 #ctx_query_address_low ~0xffffffff
+.b32 #ctx_query_counter ~0xffffffff
+.b16 0x800 0
+
+#ifdef GT215
+.section #gt215_pce_code
+#else
+.section #gf100_pce_code
+#endif
+
+main:
+ clear b32 $r0
+ mov $sp $r0
+
+ // setup i0 handler and route fifo and ctxswitch to it
+ mov $r1 #ih
+ mov $iv0 $r1
+ mov $r1 0x400
+ movw $r2 0xfff3
+ sethi $r2 0
+ iowr I[$r1 + 0x300] $r2
+
+ // enable interrupts
+ or $r2 0xc
+ iowr I[$r1] $r2
+ bset $flags ie0
+
+ // enable fifo access and context switching
+ mov $r1 0x1200
+ mov $r2 3
+ iowr I[$r1] $r2
+
+ // sleep forever, waking for interrupts
+ bset $flags $p0
+ spin:
+ sleep $p0
+ bra #spin
+
+// i0 handler
+ih:
+ iord $r1 I[$r0 + 0x200]
+
+ and $r2 $r1 0x00000008
+ bra e #ih_no_chsw
+ call #chsw
+ ih_no_chsw:
+ and $r2 $r1 0x00000004
+ bra e #ih_no_cmd
+ call #dispatch
+
+ ih_no_cmd:
+ and $r1 $r1 0x0000000c
+ iowr I[$r0 + 0x100] $r1
+ iret
+
+// $p1 direction (0 = unload, 1 = load)
+// $r3 channel
+swctx:
+ mov $r4 0x7700
+ mov $xtargets $r4
+#ifdef GT215
+ // target 7 hardcoded to ctx dma object
+ mov $xdbase $r0
+#else
+ // read SCRATCH3 to decide if we are PCOPY0 or PCOPY1
+ mov $r4 0x2100
+ iord $r4 I[$r4 + 0]
+ and $r4 1
+ shl b32 $r4 4
+ add b32 $r4 0x30
+
+ // channel is in vram
+ mov $r15 0x61c
+ shl b32 $r15 6
+ mov $r5 0x114
+ iowrs I[$r15] $r5
+
+ // read 16-byte PCOPYn info, containing context pointer, from channel
+ shl b32 $r5 $r3 4
+ add b32 $r5 2
+ mov $xdbase $r5
+ mov $r5 $sp
+ // get a chunk of stack space, aligned to 256 byte boundary
+ sub b32 $r5 0x100
+ mov $r6 0xff
+ not b32 $r6
+ and $r5 $r6
+ sethi $r5 0x00020000
+ xdld $r4 $r5
+ xdwait
+ sethi $r5 0
+
+ // set context pointer, from within channel VM
+ mov $r14 0
+ iowrs I[$r15] $r14
+ ld b32 $r4 D[$r5 + 0]
+ shr b32 $r4 8
+ ld b32 $r6 D[$r5 + 4]
+ shl b32 $r6 24
+ or $r4 $r6
+ mov $xdbase $r4
+#endif
+ // 256-byte context, at start of data segment
+ mov b32 $r4 $r0
+ sethi $r4 0x60000
+
+ // swap!
+ bra $p1 #swctx_load
+ xdst $r0 $r4
+ bra #swctx_done
+ swctx_load:
+ xdld $r0 $r4
+ swctx_done:
+ xdwait
+ ret
+
+chsw:
+ // read current channel
+ mov $r2 0x1400
+ iord $r3 I[$r2]
+
+ // if it's active, unload it and return
+ xbit $r15 $r3 0x1e
+ bra e #chsw_no_unload
+ bclr $flags $p1
+ call #swctx
+ bclr $r3 0x1e
+ iowr I[$r2] $r3
+ mov $r4 1
+ iowr I[$r2 + 0x200] $r4
+ ret
+
+ // read next channel
+ chsw_no_unload:
+ iord $r3 I[$r2 + 0x100]
+
+ // is there a channel waiting to be loaded?
+ xbit $r13 $r3 0x1e
+ bra e #chsw_finish_load
+ bset $flags $p1
+ call #swctx
+#ifdef GT215
+ // load dma objects back into TARGET regs
+ mov $r5 #ctx_dma
+ mov $r6 #ctx_dma_count
+ chsw_load_ctx_dma:
+ ld b32 $r7 D[$r5 + $r6 * 4]
+ add b32 $r8 $r6 0x180
+ shl b32 $r8 8
+ iowr I[$r8] $r7
+ sub b32 $r6 1
+ bra nc #chsw_load_ctx_dma
+#endif
+ chsw_finish_load:
+ mov $r3 2
+ iowr I[$r2 + 0x200] $r3
+ ret
+
+dispatch:
+ // read incoming fifo command
+ mov $r3 0x1900
+ iord $r2 I[$r3 + 0x100]
+ iord $r3 I[$r3 + 0x000]
+ and $r4 $r2 0x7ff
+ // $r2 will be used to store exception data
+ shl b32 $r2 0x10
+
+ // lookup method in the dispatch table, ILLEGAL_MTHD if not found
+ mov $r5 #dispatch_table
+ clear b32 $r6
+ clear b32 $r7
+ dispatch_loop:
+ ld b16 $r6 D[$r5 + 0]
+ ld b16 $r7 D[$r5 + 2]
+ add b32 $r5 4
+ cmpu b32 $r4 $r6
+ bra c #dispatch_illegal_mthd
+ add b32 $r7 $r6
+ cmpu b32 $r4 $r7
+ bra c #dispatch_valid_mthd
+ sub b32 $r7 $r6
+ shl b32 $r7 3
+ add b32 $r5 $r7
+ bra #dispatch_loop
+
+ // ensure no bits set in reserved fields, INVALID_BITFIELD
+ dispatch_valid_mthd:
+ sub b32 $r4 $r6
+ shl b32 $r4 3
+ add b32 $r4 $r5
+ ld b32 $r5 D[$r4 + 4]
+ and $r5 $r3
+ cmpu b32 $r5 0
+ bra ne #dispatch_invalid_bitfield
+
+ // depending on dispatch flags: execute method, or save data as state
+ ld b16 $r5 D[$r4 + 0]
+ ld b16 $r6 D[$r4 + 2]
+ cmpu b32 $r6 0
+ bra ne #dispatch_cmd
+ st b32 D[$r5] $r3
+ bra #dispatch_done
+ dispatch_cmd:
+ bclr $flags $p1
+ call $r5
+ bra $p1 #dispatch_error
+ bra #dispatch_done
+
+ dispatch_invalid_bitfield:
+ or $r2 2
+ dispatch_illegal_mthd:
+ or $r2 1
+
+ // store exception data in SCRATCH0/SCRATCH1, signal hostirq
+ dispatch_error:
+ mov $r4 0x1000
+ iowr I[$r4 + 0x000] $r2
+ iowr I[$r4 + 0x100] $r3
+ mov $r2 0x40
+ iowr I[$r0] $r2
+ hostirq_wait:
+ iord $r2 I[$r0 + 0x200]
+ and $r2 0x40
+ cmpu b32 $r2 0
+ bra ne #hostirq_wait
+
+ dispatch_done:
+ mov $r2 0x1d00
+ mov $r3 1
+ iowr I[$r2] $r3
+ ret
+
+// No-operation
+//
+// Inputs:
+// $r1: irqh state
+// $r2: hostirq state
+// $r3: data
+// $r4: dispatch table entry
+// Outputs:
+// $r1: irqh state
+// $p1: set on error
+// $r2: hostirq state
+// $r3: data
+cmd_nop:
+ ret
+
+// PM_TRIGGER
+//
+// Inputs:
+// $r1: irqh state
+// $r2: hostirq state
+// $r3: data
+// $r4: dispatch table entry
+// Outputs:
+// $r1: irqh state
+// $p1: set on error
+// $r2: hostirq state
+// $r3: data
+cmd_pm_trigger:
+ mov $r2 0x2200
+ clear b32 $r3
+ sethi $r3 0x20000
+ iowr I[$r2] $r3
+ ret
+
+#ifdef GT215
+// SET_DMA_* method handler
+//
+// Inputs:
+// $r1: irqh state
+// $r2: hostirq state
+// $r3: data
+// $r4: dispatch table entry
+// Outputs:
+// $r1: irqh state
+// $p1: set on error
+// $r2: hostirq state
+// $r3: data
+cmd_dma:
+ sub b32 $r4 #dispatch_dma
+ shr b32 $r4 1
+ bset $r3 0x1e
+ st b32 D[$r4 + #ctx_dma] $r3
+ add b32 $r4 0x600
+ shl b32 $r4 6
+ iowr I[$r4] $r3
+ ret
+#endif
+
+// Calculates the hw swizzle mask and adjusts the surface's xcnt to match
+//
+cmd_exec_set_format:
+ // zero out a chunk of the stack to store the swizzle into
+ add $sp -0x10
+ st b32 D[$sp + 0x00] $r0
+ st b32 D[$sp + 0x04] $r0
+ st b32 D[$sp + 0x08] $r0
+ st b32 D[$sp + 0x0c] $r0
+
+ // extract cpp, src_ncomp and dst_ncomp from FORMAT
+ ld b32 $r4 D[$r0 + #ctx_format]
+ extr $r5 $r4 16:17
+ add b32 $r5 1
+ extr $r6 $r4 20:21
+ add b32 $r6 1
+ extr $r7 $r4 24:25
+ add b32 $r7 1
+
+ // convert FORMAT swizzle mask to hw swizzle mask
+ bclr $flags $p2
+ clear b32 $r8
+ clear b32 $r9
+ ncomp_loop:
+ and $r10 $r4 0xf
+ shr b32 $r4 4
+ clear b32 $r11
+ bpc_loop:
+ cmpu b8 $r10 4
+ bra nc #cmp_c0
+ mulu $r12 $r10 $r5
+ add b32 $r12 $r11
+ bset $flags $p2
+ bra #bpc_next
+ cmp_c0:
+ bra ne #cmp_c1
+ mov $r12 0x10
+ add b32 $r12 $r11
+ bra #bpc_next
+ cmp_c1:
+ cmpu b8 $r10 6
+ bra nc #cmp_zero
+ mov $r12 0x14
+ add b32 $r12 $r11
+ bra #bpc_next
+ cmp_zero:
+ mov $r12 0x80
+ bpc_next:
+ st b8 D[$sp + $r8] $r12
+ add b32 $r8 1
+ add b32 $r11 1
+ cmpu b32 $r11 $r5
+ bra c #bpc_loop
+ add b32 $r9 1
+ cmpu b32 $r9 $r7
+ bra c #ncomp_loop
+
+ // SRC_XCNT = (xcnt * src_cpp), or 0 if no src ref in swz (hw will hang)
+ mulu $r6 $r5
+ st b32 D[$r0 + #ctx_src_cpp] $r6
+ ld b32 $r8 D[$r0 + #ctx_xcnt]
+ mulu $r6 $r8
+ bra $p2 #dst_xcnt
+ clear b32 $r6
+
+ dst_xcnt:
+ mulu $r7 $r5
+ st b32 D[$r0 + #ctx_dst_cpp] $r7
+ mulu $r7 $r8
+
+ mov $r5 0x810
+ shl b32 $r5 6
+ iowr I[$r5 + 0x000] $r6
+ iowr I[$r5 + 0x100] $r7
+ add b32 $r5 0x800
+ ld b32 $r6 D[$r0 + #ctx_dst_cpp]
+ sub b32 $r6 1
+ shl b32 $r6 8
+ ld b32 $r7 D[$r0 + #ctx_src_cpp]
+ sub b32 $r7 1
+ or $r6 $r7
+ iowr I[$r5 + 0x000] $r6
+ add b32 $r5 0x100
+ ld b32 $r6 D[$sp + 0x00]
+ iowr I[$r5 + 0x000] $r6
+ ld b32 $r6 D[$sp + 0x04]
+ iowr I[$r5 + 0x100] $r6
+ ld b32 $r6 D[$sp + 0x08]
+ iowr I[$r5 + 0x200] $r6
+ ld b32 $r6 D[$sp + 0x0c]
+ iowr I[$r5 + 0x300] $r6
+ add b32 $r5 0x400
+ ld b32 $r6 D[$r0 + #ctx_swz_const0]
+ iowr I[$r5 + 0x000] $r6
+ ld b32 $r6 D[$r0 + #ctx_swz_const1]
+ iowr I[$r5 + 0x100] $r6
+ add $sp 0x10
+ ret
+
+// Setup to handle a tiled surface
+//
+// Calculates a number of parameters the hardware requires in order
+// to correctly handle tiling.
+//
+// Offset calculation is performed as follows (Tp/Th/Td from TILE_MODE):
+// nTx = round_up(w * cpp, 1 << Tp) >> Tp
+// nTy = round_up(h, 1 << Th) >> Th
+// Txo = (x * cpp) & ((1 << Tp) - 1)
+// Tx = (x * cpp) >> Tp
+// Tyo = y & ((1 << Th) - 1)
+// Ty = y >> Th
+// Tzo = z & ((1 << Td) - 1)
+// Tz = z >> Td
+//
+// off = (Tzo << Tp << Th) + (Tyo << Tp) + Txo
+// off += ((Tz * nTy * nTx)) + (Ty * nTx) + Tx) << Td << Th << Tp;
+//
+// Inputs:
+// $r4: hw command (0x104800)
+// $r5: ctx offset adjustment for src/dst selection
+// $p2: set if dst surface
+//
+cmd_exec_set_surface_tiled:
+ // translate TILE_MODE into Tp, Th, Td shift values
+ ld b32 $r7 D[$r5 + #ctx_src_tile_mode]
+ extr $r9 $r7 8:11
+ extr $r8 $r7 4:7
+#ifdef GT215
+ add b32 $r8 2
+#else
+ add b32 $r8 3
+#endif
+ extr $r7 $r7 0:3
+ cmp b32 $r7 0xe
+ bra ne #xtile64
+ mov $r7 4
+ bra #xtileok
+ xtile64:
+ xbit $r7 $flags $p2
+ add b32 $r7 17
+ bset $r4 $r7
+ mov $r7 6
+ xtileok:
+
+ // Op = (x * cpp) & ((1 << Tp) - 1)
+ // Tx = (x * cpp) >> Tp
+ ld b32 $r10 D[$r5 + #ctx_src_xoff]
+ ld b32 $r11 D[$r5 + #ctx_src_cpp]
+ mulu $r10 $r11
+ mov $r11 1
+ shl b32 $r11 $r7
+ sub b32 $r11 1
+ and $r12 $r10 $r11
+ shr b32 $r10 $r7
+
+ // Tyo = y & ((1 << Th) - 1)
+ // Ty = y >> Th
+ ld b32 $r13 D[$r5 + #ctx_src_yoff]
+ mov $r14 1
+ shl b32 $r14 $r8
+ sub b32 $r14 1
+ and $r11 $r13 $r14
+ shr b32 $r13 $r8
+
+ // YTILE = ((1 << Th) << 12) | ((1 << Th) - Tyo)
+ add b32 $r14 1
+ shl b32 $r15 $r14 12
+ sub b32 $r14 $r11
+ or $r15 $r14
+ xbit $r6 $flags $p2
+ add b32 $r6 0x208
+ shl b32 $r6 8
+ iowr I[$r6 + 0x000] $r15
+
+ // Op += Tyo << Tp
+ shl b32 $r11 $r7
+ add b32 $r12 $r11
+
+ // nTx = ((w * cpp) + ((1 << Tp) - 1) >> Tp)
+ ld b32 $r15 D[$r5 + #ctx_src_xsize]
+ ld b32 $r11 D[$r5 + #ctx_src_cpp]
+ mulu $r15 $r11
+ mov $r11 1
+ shl b32 $r11 $r7
+ sub b32 $r11 1
+ add b32 $r15 $r11
+ shr b32 $r15 $r7
+ push $r15
+
+ // nTy = (h + ((1 << Th) - 1)) >> Th
+ ld b32 $r15 D[$r5 + #ctx_src_ysize]
+ mov $r11 1
+ shl b32 $r11 $r8
+ sub b32 $r11 1
+ add b32 $r15 $r11
+ shr b32 $r15 $r8
+ push $r15
+
+ // Tys = Tp + Th
+ // CFG_YZ_TILE_SIZE = ((1 << Th) >> 2) << Td
+ add b32 $r7 $r8
+ sub b32 $r8 2
+ mov $r11 1
+ shl b32 $r11 $r8
+ shl b32 $r11 $r9
+
+ // Tzo = z & ((1 << Td) - 1)
+ // Tz = z >> Td
+ // Op += Tzo << Tys
+ // Ts = Tys + Td
+ ld b32 $r8 D[$r5 + #ctx_src_zoff]
+ mov $r14 1
+ shl b32 $r14 $r9
+ sub b32 $r14 1
+ and $r15 $r8 $r14
+ shl b32 $r15 $r7
+ add b32 $r12 $r15
+ add b32 $r7 $r9
+ shr b32 $r8 $r9
+
+ // Ot = ((Tz * nTy * nTx) + (Ty * nTx) + Tx) << Ts
+ pop $r15
+ pop $r9
+ mulu $r13 $r9
+ add b32 $r10 $r13
+ mulu $r8 $r9
+ mulu $r8 $r15
+ add b32 $r10 $r8
+ shl b32 $r10 $r7
+
+ // PITCH = (nTx - 1) << Ts
+ sub b32 $r9 1
+ shl b32 $r9 $r7
+ iowr I[$r6 + 0x200] $r9
+
+ // SRC_ADDRESS_LOW = (Ot + Op) & 0xffffffff
+ // CFG_ADDRESS_HIGH |= ((Ot + Op) >> 32) << 16
+ ld b32 $r7 D[$r5 + #ctx_src_address_low]
+ ld b32 $r8 D[$r5 + #ctx_src_address_high]
+ add b32 $r10 $r12
+ add b32 $r7 $r10
+ adc b32 $r8 0
+ shl b32 $r8 16
+ or $r8 $r11
+ sub b32 $r6 0x600
+ iowr I[$r6 + 0x000] $r7
+ add b32 $r6 0x400
+ iowr I[$r6 + 0x000] $r8
+ ret
+
+// Setup to handle a linear surface
+//
+// Nothing to see here.. Sets ADDRESS and PITCH, pretty non-exciting
+//
+cmd_exec_set_surface_linear:
+ xbit $r6 $flags $p2
+ add b32 $r6 0x202
+ shl b32 $r6 8
+ ld b32 $r7 D[$r5 + #ctx_src_address_low]
+ iowr I[$r6 + 0x000] $r7
+ add b32 $r6 0x400
+ ld b32 $r7 D[$r5 + #ctx_src_address_high]
+ shl b32 $r7 16
+ iowr I[$r6 + 0x000] $r7
+ add b32 $r6 0x400
+ ld b32 $r7 D[$r5 + #ctx_src_pitch]
+ iowr I[$r6 + 0x000] $r7
+ ret
+
+// wait for regs to be available for use
+cmd_exec_wait:
+ push $r0
+ push $r1
+ mov $r0 0x800
+ shl b32 $r0 6
+ loop:
+ iord $r1 I[$r0]
+ and $r1 1
+ bra ne #loop
+ pop $r1
+ pop $r0
+ ret
+
+cmd_exec_query:
+ // if QUERY_SHORT not set, write out { -, 0, TIME_LO, TIME_HI }
+ xbit $r4 $r3 13
+ bra ne #query_counter
+ call #cmd_exec_wait
+ mov $r4 0x80c
+ shl b32 $r4 6
+ ld b32 $r5 D[$r0 + #ctx_query_address_low]
+ add b32 $r5 4
+ iowr I[$r4 + 0x000] $r5
+ iowr I[$r4 + 0x100] $r0
+ mov $r5 0xc
+ iowr I[$r4 + 0x200] $r5
+ add b32 $r4 0x400
+ ld b32 $r5 D[$r0 + #ctx_query_address_high]
+ shl b32 $r5 16
+ iowr I[$r4 + 0x000] $r5
+ add b32 $r4 0x500
+ mov $r5 0x00000b00
+ sethi $r5 0x00010000
+ iowr I[$r4 + 0x000] $r5
+ mov $r5 0x00004040
+ shl b32 $r5 1
+ sethi $r5 0x80800000
+ iowr I[$r4 + 0x100] $r5
+ mov $r5 0x00001110
+ sethi $r5 0x13120000
+ iowr I[$r4 + 0x200] $r5
+ mov $r5 0x00001514
+ sethi $r5 0x17160000
+ iowr I[$r4 + 0x300] $r5
+ mov $r5 0x00002601
+ sethi $r5 0x00010000
+ mov $r4 0x800
+ shl b32 $r4 6
+ iowr I[$r4 + 0x000] $r5
+
+ // write COUNTER
+ query_counter:
+ call #cmd_exec_wait
+ mov $r4 0x80c
+ shl b32 $r4 6
+ ld b32 $r5 D[$r0 + #ctx_query_address_low]
+ iowr I[$r4 + 0x000] $r5
+ iowr I[$r4 + 0x100] $r0
+ mov $r5 0x4
+ iowr I[$r4 + 0x200] $r5
+ add b32 $r4 0x400
+ ld b32 $r5 D[$r0 + #ctx_query_address_high]
+ shl b32 $r5 16
+ iowr I[$r4 + 0x000] $r5
+ add b32 $r4 0x500
+ mov $r5 0x00000300
+ iowr I[$r4 + 0x000] $r5
+ mov $r5 0x00001110
+ sethi $r5 0x13120000
+ iowr I[$r4 + 0x100] $r5
+ ld b32 $r5 D[$r0 + #ctx_query_counter]
+ add b32 $r4 0x500
+ iowr I[$r4 + 0x000] $r5
+ mov $r5 0x00002601
+ sethi $r5 0x00010000
+ mov $r4 0x800
+ shl b32 $r4 6
+ iowr I[$r4 + 0x000] $r5
+ ret
+
+// Execute a copy operation
+//
+// Inputs:
+// $r1: irqh state
+// $r2: hostirq state
+// $r3: data
+// 000002000 QUERY_SHORT
+// 000001000 QUERY
+// 000000100 DST_LINEAR
+// 000000010 SRC_LINEAR
+// 000000001 FORMAT
+// $r4: dispatch table entry
+// Outputs:
+// $r1: irqh state
+// $p1: set on error
+// $r2: hostirq state
+// $r3: data
+cmd_exec:
+ call #cmd_exec_wait
+
+ // if format requested, call function to calculate it, otherwise
+ // fill in cpp/xcnt for both surfaces as if (cpp == 1)
+ xbit $r15 $r3 0
+ bra e #cmd_exec_no_format
+ call #cmd_exec_set_format
+ mov $r4 0x200
+ bra #cmd_exec_init_src_surface
+ cmd_exec_no_format:
+ mov $r6 0x810
+ shl b32 $r6 6
+ mov $r7 1
+ st b32 D[$r0 + #ctx_src_cpp] $r7
+ st b32 D[$r0 + #ctx_dst_cpp] $r7
+ ld b32 $r7 D[$r0 + #ctx_xcnt]
+ iowr I[$r6 + 0x000] $r7
+ iowr I[$r6 + 0x100] $r7
+ clear b32 $r4
+
+ cmd_exec_init_src_surface:
+ bclr $flags $p2
+ clear b32 $r5
+ xbit $r15 $r3 4
+ bra e #src_tiled
+ call #cmd_exec_set_surface_linear
+ bra #cmd_exec_init_dst_surface
+ src_tiled:
+ call #cmd_exec_set_surface_tiled
+ bset $r4 7
+
+ cmd_exec_init_dst_surface:
+ bset $flags $p2
+ mov $r5 #ctx_dst_address_high - #ctx_src_address_high
+ xbit $r15 $r3 8
+ bra e #dst_tiled
+ call #cmd_exec_set_surface_linear
+ bra #cmd_exec_kick
+ dst_tiled:
+ call #cmd_exec_set_surface_tiled
+ bset $r4 8
+
+ cmd_exec_kick:
+ mov $r5 0x800
+ shl b32 $r5 6
+ ld b32 $r6 D[$r0 + #ctx_ycnt]
+ iowr I[$r5 + 0x100] $r6
+ mov $r6 0x0041
+ // SRC_TARGET = 1, DST_TARGET = 2
+ sethi $r6 0x44000000
+ or $r4 $r6
+ iowr I[$r5] $r4
+
+ // if requested, queue up a QUERY write after the copy has completed
+ xbit $r15 $r3 12
+ bra e #cmd_exec_done
+ call #cmd_exec_query
+
+ cmd_exec_done:
+ ret
+
+// Flush write cache
+//
+// Inputs:
+// $r1: irqh state
+// $r2: hostirq state
+// $r3: data
+// $r4: dispatch table entry
+// Outputs:
+// $r1: irqh state
+// $p1: set on error
+// $r2: hostirq state
+// $r3: data
+cmd_wrcache_flush:
+ mov $r2 0x2200
+ clear b32 $r3
+ sethi $r3 0x10000
+ iowr I[$r2] $r3
+ ret
+
+.align 0x100
Code Review / kvmfornfv.git / blobdiff