Files
linux-nvgpu/drivers/gpu/nvgpu/gp10b/gp10b.c
Deepak Nibade df2100018d gpu: nvgpu: allocate separate client managed syncpoint for User
We right now allocate a nvgpu managed syncpoint in c->sync and share
that with user space

But to avoid conflicts between user space and kernel space increments
allocate a separate "client managed" syncpoint for User space in c->user_sync

Add new API nvgpu_nvhost_get_syncpt_client_managed() to request a client managed
syncpoint from nvhost.
Note that nvhost/nvgpu do not keep track of MAX/threshold value of this syncpoint

Update gk20a_channel_syncpt_create() to receive a flag to indicate whether a
User space syncpoint is required or not

Unset NVGPU_SUPPORT_USER_SYNCPOINT for gp10b since we don't want to allocate
double syncpoints per channel on that platform

For gv11b, once we move to use user space submits, support for c->sync will be
dropped so we keep using only one syncpoint per channel

Bug 200326065
Jira NVGPU-179

Change-Id: I78d94de4276db1c897ea2a4fe4c2db8b2a179722
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1665828
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2018-03-01 13:53:28 -08:00

121 lines
3.5 KiB
C

/*
* GP10B Graphics
*
* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
*
* 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.
*/
#include "gk20a/gk20a.h"
#include <nvgpu/enabled.h>
#include "gp10b.h"
#include <nvgpu/hw/gp10b/hw_fuse_gp10b.h>
#include <nvgpu/hw/gp10b/hw_gr_gp10b.h>
static void gp10b_detect_ecc_enabled_units(struct gk20a *g)
{
u32 opt_ecc_en = gk20a_readl(g, fuse_opt_ecc_en_r());
u32 opt_feature_fuses_override_disable =
gk20a_readl(g,
fuse_opt_feature_fuses_override_disable_r());
u32 fecs_feature_override_ecc =
gk20a_readl(g,
gr_fecs_feature_override_ecc_r());
if (opt_feature_fuses_override_disable) {
if (opt_ecc_en) {
__nvgpu_set_enabled(g, NVGPU_ECC_ENABLED_SM_LRF, true);
__nvgpu_set_enabled(g, NVGPU_ECC_ENABLED_SM_SHM, true);
__nvgpu_set_enabled(g, NVGPU_ECC_ENABLED_TEX, true);
__nvgpu_set_enabled(g, NVGPU_ECC_ENABLED_LTC, true);
}
} else {
/* SM LRF */
if (gr_fecs_feature_override_ecc_sm_lrf_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_sm_lrf_v(
fecs_feature_override_ecc)) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_SM_LRF, true);
}
} else {
if (opt_ecc_en) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_SM_LRF, true);
}
}
/* SM SHM */
if (gr_fecs_feature_override_ecc_sm_shm_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_sm_shm_v(
fecs_feature_override_ecc)) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_SM_SHM, true);
}
} else {
if (opt_ecc_en) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_SM_SHM, true);
}
}
/* TEX */
if (gr_fecs_feature_override_ecc_tex_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_tex_v(
fecs_feature_override_ecc)) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_TEX, true);
}
} else {
if (opt_ecc_en) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_TEX, true);
}
}
/* LTC */
if (gr_fecs_feature_override_ecc_ltc_override_v(
fecs_feature_override_ecc)) {
if (gr_fecs_feature_override_ecc_ltc_v(
fecs_feature_override_ecc)) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_LTC, true);
}
} else {
if (opt_ecc_en) {
__nvgpu_set_enabled(g,
NVGPU_ECC_ENABLED_LTC, true);
}
}
}
}
int gp10b_init_gpu_characteristics(struct gk20a *g)
{
gk20a_init_gpu_characteristics(g);
gp10b_detect_ecc_enabled_units(g);
__nvgpu_set_enabled(g, NVGPU_SUPPORT_RESCHEDULE_RUNLIST, true);
return 0;
}