Files
linux-nvgpu/drivers/gpu/nvgpu/common/vgpu/ltc/ltc_vgpu.c
Richard Zhao a884bd3537 gpu: nvgpu: vgpu: add L2 sector promotion support
- added new IVC command for setting L2 sector promotion policy.
- init according HAL for ga10b VGPU.

Jira GVSCI-10901

Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: Ibd206d26cbe72dd37f541eb0a8fb177c195567ab
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2560575
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
2021-07-19 16:13:34 -07:00

126 lines
3.5 KiB
C

/*
* Virtualized GPU L2
*
* Copyright (c) 2014-2021 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 <nvgpu/gk20a.h>
#include <nvgpu/vgpu/vgpu.h>
#include <nvgpu/vgpu/tegra_vgpu.h>
#include "common/vgpu/ivc/comm_vgpu.h"
#include "ltc_vgpu.h"
u64 vgpu_determine_L2_size_bytes(struct gk20a *g)
{
struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
nvgpu_log_fn(g, " ");
return priv->constants.l2_size;
}
void vgpu_ltc_init_fs_state(struct gk20a *g)
{
struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
struct nvgpu_ltc *ltc = g->ltc;
nvgpu_log_fn(g, " ");
ltc->ltc_count = priv->constants.ltc_count;
ltc->cacheline_size = priv->constants.cacheline_size;
ltc->slices_per_ltc = priv->constants.slices_per_ltc;
}
#ifdef CONFIG_NVGPU_DEBUGGER
int vgpu_ltc_get_max_ways_evict_last(struct gk20a *g, struct nvgpu_tsg *tsg,
u32 *num_ways)
{
struct tegra_vgpu_cmd_msg msg = {};
struct tegra_vgpu_l2_max_ways_evict_last_params *p =
&msg.params.l2_max_ways_evict_last;
int err;
msg.cmd = TEGRA_VGPU_CMD_TSG_GET_L2_MAX_WAYS_EVICT_LAST;
msg.handle = vgpu_get_handle(g);
p->tsg_id = tsg->tsgid;
err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
err = err ? err : msg.ret;
if (unlikely(err)) {
nvgpu_err(g, "failed to get L2 max ways evict last, err %d",
err);
} else {
*num_ways = p->num_ways;
}
return err;
}
int vgpu_ltc_set_max_ways_evict_last(struct gk20a *g, struct nvgpu_tsg *tsg,
u32 num_ways)
{
struct tegra_vgpu_cmd_msg msg = {};
struct tegra_vgpu_l2_max_ways_evict_last_params *p =
&msg.params.l2_max_ways_evict_last;
int err;
msg.cmd = TEGRA_VGPU_CMD_TSG_SET_L2_MAX_WAYS_EVICT_LAST;
msg.handle = vgpu_get_handle(g);
p->tsg_id = tsg->tsgid;
p->num_ways = num_ways;
err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
err = err ? err : msg.ret;
if (unlikely(err)) {
nvgpu_err(g, "failed to set L2 max ways evict last, err %d",
err);
}
return err;
}
int vgpu_ltc_set_sector_promotion(struct gk20a *g, struct nvgpu_tsg *tsg,
u32 policy)
{
struct tegra_vgpu_cmd_msg msg = {};
struct tegra_vgpu_l2_sector_promotion_params *p =
&msg.params.l2_promotion;
int err;
msg.cmd = TEGRA_VGPU_CMD_L2_SECTOR_PROMOTION;
msg.handle = vgpu_get_handle(g);
p->tsg_id = tsg->tsgid;
p->policy = policy;
err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
err = err ? err : msg.ret;
if (unlikely(err)) {
nvgpu_err(g, "failed to set L2 sector promotion, err %d",
err);
}
return err;
}
#endif