/*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <linux/delay.h> /* for udelay */
#include "gk20a/gk20a.h"
#include "gk20a/pmu_gk20a.h"
#include "gk20a/pmu_gk20a.h"
#include "gm20b/acr_gm20b.h"
#include "gm206/acr_gm206.h"
#include "gm20b/pmu_gm20b.h"
#include "gm206/pmu_gm206.h"
#include "hw_gr_gm206.h"
#include "hw_pwr_gm206.h"
#define gm206_dbg_pmu(fmt, arg...) \
gk20a_dbg(gpu_dbg_pmu, fmt, ##arg)
bool gm206_is_lazy_bootstrap(u32 falcon_id)
{
bool enable_status = false;
switch (falcon_id) {
case LSF_FALCON_ID_FECS:
enable_status = true;
break;
case LSF_FALCON_ID_GPCCS:
enable_status = true;
break;
default:
break;
}
return enable_status;
}
bool gm206_is_priv_load(u32 falcon_id)
{
bool enable_status = false;
switch (falcon_id) {
case LSF_FALCON_ID_FECS:
enable_status = true;
break;
case LSF_FALCON_ID_GPCCS:
enable_status = true;
break;
default:
break;
}
return enable_status;
}
static void gm206_pmu_load_multiple_falcons(struct gk20a *g, u32 falconidmask,
u32 flags)
{
struct pmu_gk20a *pmu = &g->pmu;
struct pmu_cmd cmd;
u32 seq;
gk20a_dbg_fn("");
gm206_dbg_pmu("wprinit status = %x\n", g->ops.pmu.lspmuwprinitdone);
if (g->ops.pmu.lspmuwprinitdone) {
/* send message to load FECS falcon */
memset(&cmd, 0, sizeof(struct pmu_cmd));
cmd.hdr.unit_id = PMU_UNIT_ACR;
cmd.hdr.size = PMU_CMD_HDR_SIZE +
sizeof(struct pmu_acr_cmd_bootstrap_multiple_falcons);
cmd.cmd.acr.boot_falcons.cmd_type =
PMU_ACR_CMD_ID_BOOTSTRAP_MULTIPLE_FALCONS;
cmd.cmd.acr.boot_falcons.flags = flags;
cmd.cmd.acr.boot_falcons.falconidmask =
falconidmask;
cmd.cmd.acr.boot_falcons.usevamask = 0;
cmd.cmd.acr.boot_falcons.wprvirtualbase.lo = 0;
cmd.cmd.acr.boot_falcons.wprvirtualbase.hi = 0;
gm206_dbg_pmu("PMU_ACR_CMD_ID_BOOTSTRAP_MULTIPLE_FALCONS:%x\n",
falconidmask);
gk20a_pmu_cmd_post(g, &cmd, NULL, NULL, PMU_COMMAND_QUEUE_HPQ,
pmu_handle_fecs_boot_acr_msg, pmu, &seq, ~0);
}
gk20a_dbg_fn("done");
}
int gm206_load_falcon_ucode(struct gk20a *g, u32 falconidmask)
{
u32 flags = PMU_ACR_CMD_BOOTSTRAP_FALCON_FLAGS_RESET_YES;
/* GM20B PMU supports loading FECS and GPCCS only */
if (falconidmask == 0)
return -EINVAL;
if (falconidmask & ~((1 << LSF_FALCON_ID_FECS) |
(1 << LSF_FALCON_ID_GPCCS)))
return -EINVAL;
g->ops.pmu.lsfloadedfalconid = 0;
/* check whether pmu is ready to bootstrap lsf if not wait for it */
if (!g->ops.pmu.lspmuwprinitdone) {
pmu_wait_message_cond(&g->pmu,
gk20a_get_gr_idle_timeout(g),
&g->ops.pmu.lspmuwprinitdone, 1);
/* check again if it still not ready indicate an error */
if (!g->ops.pmu.lspmuwprinitdone) {
gk20a_err(dev_from_gk20a(g),
"PMU not ready to load LSF");
return -ETIMEDOUT;
}
}
/* load falcon(s) */
gm206_pmu_load_multiple_falcons(g, falconidmask, flags);
pmu_wait_message_cond(&g->pmu,
gk20a_get_gr_idle_timeout(g),
&g->ops.pmu.lsfloadedfalconid, falconidmask);
if (g->ops.pmu.lsfloadedfalconid != falconidmask)
return -ETIMEDOUT;
return 0;
}
void gm206_init_pmu_ops(struct gpu_ops *gops)
{
if (gops->privsecurity) {
gm206_init_secure_pmu(gops);
gops->pmu.init_wpr_region = gm20b_pmu_init_acr;
gops->pmu.load_lsfalcon_ucode = gm206_load_falcon_ucode;
gops->pmu.is_lazy_bootstrap = gm206_is_lazy_bootstrap;
gops->pmu.is_priv_load = gm206_is_priv_load;
} else {
gk20a_init_pmu_ops(gops);
gops->pmu.pmu_setup_hw_and_bootstrap =
gm20b_init_nspmu_setup_hw1;
gops->pmu.load_lsfalcon_ucode = NULL;
gops->pmu.init_wpr_region = NULL;
}
gops->pmu.pmu_setup_elpg = NULL;
gops->pmu.lspmuwprinitdone = 0;
gops->pmu.fecsbootstrapdone = false;
gops->pmu.write_dmatrfbase = gm20b_write_dmatrfbase;
gops->pmu.pmu_elpg_statistics = NULL;
gops->pmu.pmu_pg_grinit_param = NULL;
gops->pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd = NULL;
gops->pmu.dump_secure_fuses = NULL;
gops->pmu.reset = gk20a_pmu_reset;
}
