Laurent Morichetti
160 regels
6.7 KiB
C++
160 regels
6.7 KiB
C++
/* Copyright (c) 2015-present Advanced Micro Devices, 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
|
|
AUTHORS OR COPYRIGHT HOLDERS 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. */
|
|
|
|
/*******************************************************************************
|
|
* The source of the runtime trap handler, "runtimetraphandler.sp3".
|
|
* The binary is created by the SP3 tool with the following command:
|
|
*
|
|
* sp3.exe runtimetraphandler.sp3 -hex runtimeTrapCode.hex
|
|
*
|
|
*******************************************************************************
|
|
|
|
shader main
|
|
asic(TAHITI) // for SI/CI or asic(VI) for VI
|
|
type(CS)
|
|
|
|
// clear wave exception state
|
|
v_clrexcp
|
|
s_waitcnt 0
|
|
//==========================================================================
|
|
// Handle the workaround for HW bug that causes the incorrect TMA value.
|
|
// Retrieve the TMA values, which are stored at TBA buffer at location
|
|
// 256 (0x100).
|
|
|
|
// Construct the memory descriptor with TBA as the start address
|
|
// we are using the registers ttmp[8:11] for that.
|
|
s_mov_b32 ttmp8, tba_lo
|
|
s_and_b32 ttmp9, tba_hi, 0xffff
|
|
|
|
// 0x100=256 bytes, which is the size of the buffer to
|
|
// store all the level 2 trap handler info
|
|
s_or_b32 ttmp9, ttmp9, 0x01000000
|
|
s_mov_b32 ttmp10, 0x00002000
|
|
s_mov_b32 ttmp11, 0x00024fac
|
|
|
|
// TMA is stored 256 (0x100) bytes before the TBA value
|
|
s_sub_u32 ttmp8, ttmp8, 0x100
|
|
|
|
// Backup the s0 since ttmp registers cannot be target of
|
|
// buffer read instruction
|
|
s_mov_b32 ttmp7, s0
|
|
s_buffer_load_dword s0, ttmp8, 0x0 // VI: offset=0x0 (bytes)
|
|
s_waitcnt 0
|
|
s_mov_b32 tma_lo, s0
|
|
s_buffer_load_dword s0, ttmp8, 0x1 // VI: offset=0x4 (bytes)
|
|
s_waitcnt 0
|
|
s_mov_b32 tma_hi, s0
|
|
s_mov_b32 s0, ttmp7
|
|
|
|
//===================================================
|
|
// setup the mmeory descriptor for TMA
|
|
s_mov_b32 ttmp6, 0x18
|
|
s_add_u32 ttmp8, tma_lo, ttmp6
|
|
s_and_b32 ttmp9, tma_hi, 0xffff
|
|
//0x68=104 bytes, which is the size of the buffer to
|
|
//store all the level2 trap handler info
|
|
s_or_b32 ttmp9, ttmp9, 0x00680000
|
|
s_mov_b32 ttmp10, 0x00002000
|
|
s_mov_b32 ttmp11, 0x00024fac
|
|
|
|
//===================================================
|
|
// backup the TMA values to be restored later
|
|
// level-one TMA saved in the ttmp6,ttmp7
|
|
s_mov_b32 ttmp6, tma_lo
|
|
s_mov_b32 ttmp7, tma_hi
|
|
|
|
//===================================================
|
|
// setup the TMA for the level-two trap handler
|
|
// level-two TMA saved in tma_hi, tma_lo
|
|
s_mov_b32 ttmp3, s0
|
|
s_buffer_load_dword s0, ttmp8, 0x2 // VI: offset=0x8 (bytes)
|
|
s_waitcnt 0x0000
|
|
s_mov_b32 tma_lo, s0
|
|
|
|
s_buffer_load_dword s0, ttmp8, 0x3 // VI: offset=0xc (bytes)
|
|
s_waitcnt 0x0000
|
|
s_mov_b32 tma_hi, s0
|
|
|
|
//===================================================
|
|
// setup the TBA for the level-two trap handler
|
|
// level-two TBA saved in ttmp9, ttmp8
|
|
s_buffer_load_dword s0, ttmp8, 0x0 // VI: offset=0x0 (bytes)
|
|
s_waitcnt 0x0000
|
|
s_mov_b32 ttmp2, s0
|
|
|
|
s_buffer_load_dword s0, ttmp8, 0x1 // VI: offset=0x4 (bytes)
|
|
s_waitcnt 0x0000
|
|
|
|
//swap the values of s0 and ttmp3 without using other registers
|
|
s_xor_b32 ttmp3, s0, ttmp3
|
|
s_xor_b32 s0, s0, ttmp3
|
|
s_xor_b32 ttmp3, s0, ttmp3
|
|
|
|
//store the debug trap handler start address in ttmp8,9
|
|
s_mov_b32 ttmp8, ttmp2
|
|
s_mov_b32 ttmp9, ttmp3
|
|
|
|
//===================================================
|
|
// get the pc value to resume execution
|
|
s_getpc_b64 [ttmp2, ttmp3]
|
|
s_add_u32 ttmp2, ttmp2, 0x8
|
|
|
|
//===================================================
|
|
//set the pc value to jump to the debug trap handler
|
|
s_setpc_b64 [ttmp8, ttmp9]
|
|
|
|
//===================================================
|
|
// restore the tamp values
|
|
s_mov_b32 tma_hi, ttmp7
|
|
s_mov_b32 tma_lo, ttmp6
|
|
|
|
label_return:
|
|
//===================================================
|
|
// return from the trap handler to the saved PC
|
|
s_and_b32 ttmp1, ttmp1, 0xffff
|
|
s_rfe_b64 [ttmp0,ttmp1]
|
|
|
|
end
|
|
|
|
*******************************************************************************/
|
|
|
|
/// shader codes with "asic(TAHITI)" instruction
|
|
static const uint32_t RuntimeTrapCode[] = {
|
|
0x7e008200, 0xbf8c0000, 0xbef8036c, 0x8779ff6d, 0x0000ffff, 0x8879ff79, 0x01000000, 0xbefa03ff,
|
|
0x00002000, 0xbefb03ff, 0x00024fac, 0x80f8ff78, 0x00000100, 0xbef70300, 0xc2007900, 0xbf8c0000,
|
|
0xbeee0300, 0xc2007901, 0xbf8c0000, 0xbeef0300, 0xbe800377, 0xbef60398, 0x8078766e, 0x8779ff6f,
|
|
0x0000ffff, 0x8879ff79, 0x00680000, 0xbefa03ff, 0x00002000, 0xbefb03ff, 0x00024fac, 0xbef6036e,
|
|
0xbef7036f, 0xbef30300, 0xc2007902, 0xbf8c0000, 0xbeee0300, 0xc2007903, 0xbf8c0000, 0xbeef0300,
|
|
0xc2007900, 0xbf8c0000, 0xbef20300, 0xc2007901, 0xbf8c0000, 0x89737300, 0x89007300, 0x89737300,
|
|
0xbef80372, 0xbef90373, 0xbef21f00, 0x80728872, 0xbe802078, 0xbeef0377, 0xbeee0376, 0x8771ff71,
|
|
0x0000ffff, 0xbe802270};
|
|
|
|
|
|
/// shader codes with "asic(VI)" instruction
|
|
static const uint32_t RuntimeTrapCodeVi[] = {
|
|
0x7e006a00, 0xbf8c0000, 0xbef8006c, 0x8679ff6d, 0x0000ffff, 0x8779ff79, 0x01000000, 0xbefa00ff,
|
|
0x00002000, 0xbefb00ff, 0x00024fac, 0x80f8ff78, 0x00000100, 0xbef70000, 0xc022003c, 0x00000000,
|
|
0xbf8c0000, 0xbeee0000, 0xc022003c, 0x00000004, 0xbf8c0000, 0xbeef0000, 0xbe800077, 0xbef60098,
|
|
0x8078766e, 0x8679ff6f, 0x0000ffff, 0x8779ff79, 0x00680000, 0xbefa00ff, 0x00002000, 0xbefb00ff,
|
|
0x00024fac, 0xbef6006e, 0xbef7006f, 0xbef30000, 0xc022003c, 0x00000008, 0xbf8c0000, 0xbeee0000,
|
|
0xc022003c, 0x0000000c, 0xbf8c0000, 0xbeef0000, 0xc022003c, 0x00000000, 0xbf8c0000, 0xbef20000,
|
|
0xc022003c, 0x00000004, 0xbf8c0000, 0x88737300, 0x88007300, 0x88737300, 0xbef80072, 0xbef90073,
|
|
0xbef21c00, 0x80728872, 0xbe801d78, 0xbeef0077, 0xbeee0076, 0x8671ff71, 0x0000ffff, 0xbe801f70};
|