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/*
* Copyright (C) 2017 Etnaviv Project
* Copyright (C) 2017 Zodiac Inflight Innovations
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "etnaviv_gpu.h"
struct etnaviv_pm_domain;
struct etnaviv_pm_signal {
char name[64];
u32 data;
u32 (*sample)(struct etnaviv_gpu *gpu,
const struct etnaviv_pm_domain *domain,
const struct etnaviv_pm_signal *signal);
};
struct etnaviv_pm_domain {
char name[64];
u8 nr_signals;
const struct etnaviv_pm_signal *signal;
};
struct etnaviv_pm_domain_meta {
const struct etnaviv_pm_domain *domains;
u32 nr_domains;
};
static const struct etnaviv_pm_domain doms_3d[] = {
};
static const struct etnaviv_pm_domain doms_2d[] = {
};
static const struct etnaviv_pm_domain doms_vg[] = {
};
static const struct etnaviv_pm_domain_meta doms_meta[] = {
{
.nr_domains = ARRAY_SIZE(doms_3d),
.domains = &doms_3d[0]
},
{
.nr_domains = ARRAY_SIZE(doms_2d),
.domains = &doms_2d[0]
},
{
.nr_domains = ARRAY_SIZE(doms_vg),
.domains = &doms_vg[0]
}
};
int etnaviv_pm_query_dom(struct etnaviv_gpu *gpu,
struct drm_etnaviv_pm_domain *domain)
{
const struct etnaviv_pm_domain_meta *meta = &doms_meta[domain->pipe];
const struct etnaviv_pm_domain *dom;
if (domain->iter >= meta->nr_domains)
return -EINVAL;
dom = meta->domains + domain->iter;
domain->id = domain->iter;
domain->nr_signals = dom->nr_signals;
strncpy(domain->name, dom->name, sizeof(domain->name));
domain->iter++;
if (domain->iter == meta->nr_domains)
domain->iter = 0xff;
return 0;
}
int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu,
struct drm_etnaviv_pm_signal *signal)
{
const struct etnaviv_pm_domain_meta *meta = &doms_meta[signal->pipe];
const struct etnaviv_pm_domain *dom;
const struct etnaviv_pm_signal *sig;
if (signal->domain >= meta->nr_domains)
return -EINVAL;
dom = meta->domains + signal->domain;
if (signal->iter > dom->nr_signals)
return -EINVAL;
sig = &dom->signal[signal->iter];
signal->id = signal->iter;
strncpy(signal->name, sig->name, sizeof(signal->name));
signal->iter++;
if (signal->iter == dom->nr_signals)
signal->iter = 0xffff;
return 0;
}
int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r,
u32 exec_state)
{
const struct etnaviv_pm_domain_meta *meta = &doms_meta[exec_state];
const struct etnaviv_pm_domain *dom;
if (r->domain >= meta->nr_domains)
return -EINVAL;
dom = meta->domains + r->domain;
if (r->signal > dom->nr_signals)
return -EINVAL;
return 0;
}
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