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/*
* GP10B PMU
*
* Copyright (c) 2015, 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 "gm20b/acr_gm20b.h"
#include "gm20b/pmu_gm20b.h"
#include "pmu_gp10b.h"
#define gp10b_dbg_pmu(fmt, arg...) \
gk20a_dbg(gpu_dbg_pmu, fmt, ##arg)
/*!
* Structure/object which single register write need to be done during PG init
* sequence to set PROD values.
*/
struct pg_init_sequence_list {
u32 regaddr;
u32 writeval;
};
/* PROD settings for ELPG sequencing registers*/
static struct pg_init_sequence_list _pginitseq_gp10b[] = {
{0x0010ab10, 0x0000868B} ,
{0x0010e118, 0x8590848F} ,
{0x0010e000, 0} ,
{0x0010e06c, 0x000000A3} ,
{0x0010e06c, 0x000000A0} ,
{0x0010e06c, 0x00000095} ,
{0x0010e06c, 0x000000A6} ,
{0x0010e06c, 0x0000008C} ,
{0x0010e06c, 0x00000080} ,
{0x0010e06c, 0x00000081} ,
{0x0010e06c, 0x00000087} ,
{0x0010e06c, 0x00000088} ,
{0x0010e06c, 0x0000008D} ,
{0x0010e06c, 0x000000A00} ,
{0x0010e06c, 0x000000A01} ,
{0x0010e06c, 0x000000A02} ,
{0x0010e06c, 0x000000A03} ,
{0x0010e06c, 0x000000A04} ,
{0x0010e06c, 0x000000A05} ,
{0x0010e06c, 0x000000A06} ,
{0x0010e06c, 0x000000A07} ,
{0x0010e06c, 0x000000A08} ,
{0x0010e06c, 0x000000A09} ,
{0x0010e06c, 0x000000950} ,
{0x0010e06c, 0x000000951} ,
{0x0010e06c, 0x000000952} ,
{0x0010e06c, 0x000000953} ,
{0x0010e06c, 0x000000954} ,
{0x0010e06c, 0x000000955} ,
{0x0010e06c, 0x000000956} ,
{0x0010e06c, 0x000000957} ,
{0x0010ab14, 0x00000000} ,
{0x0010e024, 0x00000000} ,
{0x0010e028, 0x00000000} ,
{0x0010e11c, 0x00000000} ,
{0x0010ab1c, 0x140B0B55} ,
{0x0010e020, 0x0E262655} ,
{0x0010e124, 0x25101055} ,
{0x0010ab20, 0x89abcdef} ,
{0x0010ab24, 0x00000000} ,
{0x0010e02c, 0x89abcdef} ,
{0x0010e030, 0x00000000} ,
{0x0010e128, 0x89abcdef} ,
{0x0010e12c, 0x00000000} ,
{0x0010ab28, 0x75555555} ,
{0x0010ab2c, 0x70000000} ,
{0x0010e034, 0x75555555} ,
{0x0010e038, 0x70000000} ,
{0x0010e130, 0x75555555} ,
{0x0010e134, 0x70000000} ,
{0x0010ab30, 0x00000000} ,
{0x0010ab34, 0x00000001} ,
{0x00020004, 0x00000000} ,
{0x0010e138, 0x00000000} ,
{0x0010e040, 0x00000000} ,
{0x0010e168, 0x00000000} ,
{0x0010e114, 0x0000A5A4} ,
{0x0010e110, 0x00000000} ,
{0x0010e10c, 0x8590848F} ,
{0x0010e05c, 0x00000000} ,
{0x0010e044, 0x00000000} ,
{0x0010a644, 0x0000868B} ,
{0x0010a648, 0x00000000 } ,
{0x0010a64c, 0x00829493 } ,
{0x0010a650, 0x00000000} ,
{0x0010e000, 0} ,
{0x0010e068, 0x000000A3} ,
{0x0010e068, 0x000000A0} ,
{0x0010e068, 0x00000095} ,
{0x0010e068, 0x000000A6} ,
{0x0010e068, 0x0000008C} ,
{0x0010e068, 0x00000080} ,
{0x0010e068, 0x00000081} ,
{0x0010e068, 0x00000087} ,
{0x0010e068, 0x00000088} ,
{0x0010e068, 0x0000008D} ,
{0x0010e068, 0x000000A00} ,
{0x0010e068, 0x000000A01} ,
{0x0010e068, 0x000000A02} ,
{0x0010e068, 0x000000A03} ,
{0x0010e068, 0x000000A04} ,
{0x0010e068, 0x000000A05} ,
{0x0010e068, 0x000000A06} ,
{0x0010e068, 0x000000A07} ,
{0x0010e068, 0x000000A08} ,
{0x0010e068, 0x000000A09} ,
{0x0010e068, 0x000000950} ,
{0x0010e068, 0x000000951} ,
{0x0010e068, 0x000000952} ,
{0x0010e068, 0x000000953} ,
{0x0010e068, 0x000000954} ,
{0x0010e068, 0x000000955} ,
{0x0010e068, 0x000000956} ,
{0x0010e068, 0x000000957} ,
{0x0010e000, 0} ,
{0x0010e004, 0x0000008E},
};
static void gp10b_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("");
gp10b_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 =
1 << LSF_FALCON_ID_GPCCS;
cmd.cmd.acr.boot_falcons.wprvirtualbase.lo =
u64_lo32(g->pmu.wpr_buf.gpu_va);
cmd.cmd.acr.boot_falcons.wprvirtualbase.hi =
u64_hi32(g->pmu.wpr_buf.gpu_va);
gp10b_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");
return;
}
static int gp10b_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) */
gp10b_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;
}
static int gp10b_pmu_setup_elpg(struct gk20a *g)
{
int ret = 0;
u32 reg_writes;
u32 index;
gk20a_dbg_fn("");
if (g->elpg_enabled) {
reg_writes = ((sizeof(_pginitseq_gp10b) /
sizeof((_pginitseq_gp10b)[0])));
/* Initialize registers with production values*/
for (index = 0; index < reg_writes; index++) {
gk20a_writel(g, _pginitseq_gp10b[index].regaddr,
_pginitseq_gp10b[index].writeval);
}
}
gk20a_dbg_fn("done");
return ret;
}
void gp10b_init_pmu_ops(struct gpu_ops *gops)
{
if (gops->privsecurity) {
gm20b_init_secure_pmu(gops);
gops->pmu.init_wpr_region = gm20b_pmu_init_acr;
gops->pmu.load_lsfalcon_ucode = gp10b_load_falcon_ucode;
} else {
gk20a_init_pmu_ops(gops);
gops->pmu.load_lsfalcon_ucode = NULL;
gops->pmu.init_wpr_region = NULL;
}
gops->pmu.pmu_setup_elpg = gp10b_pmu_setup_elpg;
gops->pmu.lspmuwprinitdone = false;
gops->pmu.fecsbootstrapdone = false;
}
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