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/*
* Copyright 2017 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 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: Tom St Denis <tom.stdenis@amd.com>
*
*/
#include "umrapp.h"
#include <inttypes.h>
/* set a register based on regpath e.g.
*
* stoney.uvd6.mmFOO
*/
int umr_set_register(struct umr_asic *asic, char *regpath, char *regvalue)
{
char rpath[512];
int i, j, fd;
uint32_t value;
uint64_t addr, scale;
/* scan until we compare with regpath... */
for (i = 0; i < asic->no_blocks; i++) {
if (!memcmp(regpath, "*.", 2))
snprintf(rpath, sizeof(rpath)-1, "*.%s.", asic->blocks[i]->ipname);
else
snprintf(rpath, sizeof(rpath)-1, "%s.%s.", asic->asicname, asic->blocks[i]->ipname);
if (memcmp(regpath, rpath, strlen(rpath)) == 0) {
for (j = 0; j < asic->blocks[i]->no_regs; j++) {
if (!memcmp(regpath, "*.", 2))
snprintf(rpath, sizeof(rpath)-1, "*.%s.%s", asic->blocks[i]->ipname, asic->blocks[i]->regs[j].regname);
else
snprintf(rpath, sizeof(rpath)-1, "%s.%s.%s", asic->asicname, asic->blocks[i]->ipname, asic->blocks[i]->regs[j].regname);
if (!strcmp(regpath, rpath)) {
sscanf(regvalue, "%"SCNx32, &value);
if (asic->pci.mem == NULL) {
// set this register
switch (asic->blocks[i]->regs[j].type){
case REG_MMIO: fd = asic->fd.mmio; scale = 4; break;
case REG_DIDT: fd = asic->fd.didt; scale = 1; break;
case REG_PCIE: fd = asic->fd.pcie; scale = 1; break;
case REG_SMC: fd = asic->fd.smc; scale = 4; break;
default: return -1;
}
if (asic->blocks[i]->grant) {
if (asic->blocks[i]->grant(asic)) {
fprintf(stderr, "[ERROR] Must specify at least one 'risky' before writing to this block.\n");
return -1;
}
}
if (options.use_bank && asic->blocks[i]->regs[j].type == REG_MMIO)
addr =
(1ULL << 62) |
(((uint64_t)options.se_bank) << 24) |
(((uint64_t)options.sh_bank) << 34) |
(((uint64_t)options.instance_bank) << 44);
else
addr = 0;
lseek(fd, addr | (asic->blocks[i]->regs[j].addr*scale), SEEK_SET);
write(fd, &value, 4);
if (asic->blocks[i]->release) {
if (asic->blocks[i]->release(asic)) {
return -1;
}
}
} else if (asic->blocks[i]->regs[j].type == REG_MMIO) {
asic->pci.mem[asic->blocks[i]->regs[j].addr] = value;
}
return 0;
}
}
}
}
fprintf(stderr, "Path <%s> not found on this ASIC\n", regpath);
return -1;
}
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