/*
* Set dependency control HW scoreboard kernel
* Copyright © <2010>, Intel Corporation.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
*
* This file was originally licensed under the following license
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Kernel name: SetHWScoreboard.asm
//
// Set dependency control HW scoreboard kernel
//
// ----------------------------------------------------
// Main: SetHWScoreboard
// ----------------------------------------------------
.kernel SetHWScoreboard
SETHWSCOREBOARD:
#ifdef _DEBUG
// WA for FULSIM so we'll know which kernel is being debugged
mov (1) acc0:ud 0xf0aa55a5:ud
#endif
#include "header.inc"
#include "SetHWScoreboard_header.inc"
//
// Now, begin source code....
//
.code
// Separate the TotalMB so TotalMB will be multiple of 8
// and RemainderMB will hold the TotalMB%8
//
and.z.f0.1 (1) RemainderMB<1>:uw TotalMB<0;1,0>:uw 0x0007:uw // number of %8 commands
and.z.f0.0 (1) TotalMB<1>:uw TotalMB<0;1,0>:uw 0xfff8:uw // Number of 8-command blocks
mov (1) MB_SHIFT_MASK_W<1>:uw 0x100*16+12:w // Set up shift values (12, 16)
// Initialize common DAP read header
//
mov (8) MRF_READ_HEADER_SRC<1>:ud r0.0<8;8,1>:ud
shl (1) MRF_READ_HEADER_SRC.2<1>:ud StartingMB<0;1,0>:uw 6:uw // Byte-aligned offset being read
// Initialize Inter DAP write header
mov (8) MRF_INTER_WRITE_HEADER<1>:ud r0.0<8;8,1>:ud
(f0.0) jmpi (1) SetHWScoreboard_Remainder // Jump if TotalMB < 8
//------------------------------------------------------------------------
// Command buffer parsing loop
// Each loop will handle 8 commands
//------------------------------------------------------------------------
//
SetHWScoreboard_Loop:
// Load block 0 (Commands 0/1)
mov (8) MRF_READ_HEADER0.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
send (16) CMD_BUFFER_W(0)<1> MRF_READ_HEADER0 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 1 (Commands 2/3)
mov (8) MRF_READ_HEADER1.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER1.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 128:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(4)<1> MRF_READ_HEADER1 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 2 (Commands 4/5)
mov (8) MRF_READ_HEADER2.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER2.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 256:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(8)<1> MRF_READ_HEADER2 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 3 (Commands 6/7)
mov (8) MRF_READ_HEADER3.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER3.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 384:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(12)<1> MRF_READ_HEADER3 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Start parsing commands
$for(0; <16; 2) {
and.nz.f0.1 (8) NULLREG CMD_BUFFER_D(%1,4)<0;1,0> IS_INTRA_MB:ud // Is it an "Intra" MB?
or (1) CMD_BUFFER_D(%1,2)<1> CMD_BUFFER_D(%1,2)<0;1,0> BIT21:ud // Set "Use Scoreboard" for every MB
shl (2) CMD_BUFFER_W(%1,2)<1> CMD_BUFFER_W(%1,14)<0;1,0> MB_SHIFT_MASK_B<2;2,1>:b // Set HW SB masks
mov (2) CMD_BUFFER_B(%1,4)<2> CMD_BUFFER_B(%1,20)<2;2,1> // Set scoreboard (X,Y) for intra MB
(-f0.1) mov (2) CMD_BUFFER_W(%1,2)<1> CMD_BUFFER_B(%1,20)<2;2,1> // Set scoreboard (X,Y) for inter MB
(f0.1) jmpi (1) Parse_8_Loop_%1
// Inter Macroblock
// Output MEDIA_OBJECT command in raster scan order
mul (16) acc0<1>:uw CMD_BUFFER_B(%1,21)<0;1,0> PicWidthMB<0;1,0>:uw // MB offset = Y*W
add (16) acc0<1>:uw acc0<8;8,1>:uw CMD_BUFFER_B(%1,20)<0;1,0> // MB offset = Y*W+X
shl (1) MRF_INTER_WRITE_HEADER.2<1>:ud acc0.2<0;1,0>:uw 6:uw // Byte-aligned MB offset
mov (16) MRF_INTER_WRITE_DATA0<1>:ud CMD_BUFFER_D(%1)<8;8,1> {Compr} // Copy entire command to inter buffer
mov (16) CMD_BUFFER_D(%1)<1> 0:ud {Compr} // Clear original command
send (16) NULLREGW MRF_INTER_WRITE_HEADER null:uw DAPWRITE MSG_LEN(2)+OWBWMSGDSC+OWORD_4+BI_CMD_BUFFER
Parse_8_Loop_%1:
}
add.z.f0.0 (1) TotalMB<1>:w TotalMB<0;1,0>:w -8:w // Update remaining number of 8-command blocks
// Output modified intra commands
// Write block 0
mov (8) MRF_INTRA_WRITE_HEADER.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
$for(0; <4; 2) {
mov (16) MRF_CMD_BUF_D(%1)<1> CMD_BUFFER_D(%1)<8;8,1> {Compr}
}
send (16) NULLREGW MRF_INTRA_WRITE_HEADER null:uw DAPWRITE MSG_LEN(4)+OWBWMSGDSC+OWORD_8+BI_CMD_BUFFER
// Write block 1
mov (8) m1.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) m1.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 128:ud // Point to next 2-command block
mov (16) m2<1>:ud CMD_BUFFER_D(4)<8;8,1> {Compr}
mov (16) m4<1>:ud CMD_BUFFER_D(6)<8;8,1> {Compr}
send (16) NULLREGW m1 null:uw DAPWRITE MSG_LEN(4)+OWBWMSGDSC+OWORD_8+BI_CMD_BUFFER
// Write block 2
add (1) MRF_INTRA_WRITE_HEADER.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 256:ud // Point to next 2-command block
$for(0; <4; 2) {
mov (16) MRF_CMD_BUF_D(%1)<1> CMD_BUFFER_D(%1+8)<8;8,1> {Compr}
}
send (16) NULLREGW MRF_INTRA_WRITE_HEADER null:uw DAPWRITE MSG_LEN(4)+OWBWMSGDSC+OWORD_8+BI_CMD_BUFFER
// Write block 3
add (1) m1.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 384:ud // Point to next 2-command block
mov (16) m2<1>:ud CMD_BUFFER_D(12)<8;8,1> {Compr}
mov (16) m4<1>:ud CMD_BUFFER_D(14)<8;8,1> {Compr}
send (16) NULLREGW m1 null:uw DAPWRITE MSG_LEN(4)+OWBWMSGDSC+OWORD_8+BI_CMD_BUFFER
// Update message header for next DAP read
add (1) MRF_READ_HEADER_SRC.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 512:ud // Point to next block of 8-commands
cmp.z.f0.1 (1) NULLREG RemainderMB<0;1,0>:w 0:uw // Check if remainder MB = 0
(-f0.0) jmpi (1) SetHWScoreboard_Loop // Continue if more command blocks remain
SetHWScoreboard_Remainder:
// f0.1 should have been set to indicate if RemainderMB = 0
//
(f0.1) jmpi (1) SetHWScoreboard_Done // Stop if all commands have been updated
// Blindly load next 8 commands anyway
//
// Load block 0 (Commands 0/1)
mov (8) MRF_READ_HEADER0.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
send (16) CMD_BUFFER_W(0)<1> MRF_READ_HEADER0 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 1 (Commands 2/3)
mov (8) MRF_READ_HEADER1.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER1.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 128:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(4)<1> MRF_READ_HEADER1 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 2 (Commands 4/5)
mov (8) MRF_READ_HEADER2.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER2.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 256:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(8)<1> MRF_READ_HEADER2 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Load block 3 (Commands 6/7)
mov (8) MRF_READ_HEADER3.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
add (1) MRF_READ_HEADER3.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 384:ud // Point to next 2-command block
send (16) CMD_BUFFER_W(12)<1> MRF_READ_HEADER3 null:uw DAPREAD RESP_LEN(4)+OWBRMSGDSC_SC+OWORD_8+BI_CMD_BUFFER
// Initialize necessary pointers
mov (1) a0.1<1>:ud ((CMD_BUFFER_REG_OFF+1)*0x10000+CMD_BUFFER_REG_OFF)*32 // a0.2:w points to command buffer (first half)
// a0.3:w points to command buffer (second half)
// Initialize Inter DAP write header
mov (8) MRF_INTER_WRITE_HEADER<1>:ud r0.0<8;8,1>:ud
SetHWScoreboard_Remainder_Loop:
and.nz.f0.1 (8) NULLREG r[a0.2,4*4]<0;1,0>:ud IS_INTRA_MB:ud // Is it an "Intra" MB?
add.z.f0.0 (1) RemainderMB<1>:w RemainderMB<0;1,0>:w -1:w // Decrement MB #
or (1) r[a0.2,2*4]<1>:ud r[a0.2,2*4]<0;1,0>:ud BIT21:ud // Set "Use Scoreboard" for every MB
shl (2) r[a0.2,2*2]<1>:uw r[a0.2,14*2]<0;1,0>:uw MB_SHIFT_MASK_B<2;2,1>:b // Set HW SB masks
mov (2) r[a0.2,4*1]<2>:ub r[a0.2,5*4]<2;2,1>:ub // Set scoreboard (X,Y) for intra MB
(-f0.1) mov (2) r[a0.2,4*1]<1>:uw r[a0.2,5*4]<2;2,1>:ub // Set scoreboard (X,Y) for inter MB
(f0.1) jmpi (1) Output_Remainder_Intra
// Inter Macroblock
// Output MEDIA_OBJECT command in raster scan order
mul (16) acc0<1>:uw r[a0.2,21]<0;1,0>:ub PicWidthMB<0;1,0>:uw // MB offset = Y*W
add (16) acc0<1>:uw acc0<8;8,1>:uw r[a0.2,20]<0;1,0>:ub // MB offset = Y*W+X
shl (1) MRF_INTER_WRITE_HEADER.2<1>:ud acc0.2<0;1,0>:uw 6:uw // Byte-aligned MB offset
mov (16) MRF_INTER_WRITE_DATA0<1>:ud r[a0.2]<8;8,1>:ud {Compr} // Copy entire command to inter buffer
mov (16) r[a0.2]<1>:ud 0:ud {Compr} // Clear original command
send (16) NULLREGW MRF_INTER_WRITE_HEADER null:uw DAPWRITE MSG_LEN(2)+OWBWMSGDSC+OWORD_4+BI_CMD_BUFFER
Output_Remainder_Intra:
// Intra MB command always output
mov (8) MRF_INTRA_WRITE_HEADER.0<1>:ud MRF_READ_HEADER_SRC.0<8;8,1>:ud
mov (16) MRF_CMD_BUF_D(0)<1> r[a0.2]<8;8,1>:ud {Compr} // Copy entire command to intra buffer
send (16) NULLREGW MRF_INTRA_WRITE_HEADER null:uw DAPWRITE MSG_LEN(2)+OWBWMSGDSC+OWORD_4+BI_CMD_BUFFER
add (1) MRF_READ_HEADER_SRC.2<1>:ud MRF_READ_HEADER_SRC.2<0;1,0>:ud 64:ud // Point to next command
add (1) a0.1<1>:ud a0.1<0;1,0>:ud 0x00400040:ud // Update pointers
(-f0.0) jmpi (1) SetHWScoreboard_Remainder_Loop
// All MBs have been decoded. Terminate the thread now
//
SetHWScoreboard_Done:
END_THREAD
#if !defined(COMBINED_KERNEL) // For standalone kernel only
.end_code
.end_kernel
#endif
// End of SetHWScoreboard