mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-23 18:16:01 +03:00
60073d2156
Moved following ltc related data to struct nvgpu_ltc and has a reference to it from struct gk20a: struct nvgpu_spinlock ltc_enabled_lock; u32 max_ltc_count; u32 ltc_count; u32 slices_per_ltc; u32 cacheline_size; Added function remove_support for ltc and it is called during nvgpu remove sequence. Added following helper functions in ltc.h: u32 nvgpu_ltc_get_ltc_count(struct gk20a *g); u32 nvgpu_ltc_get_slices_per_ltc(struct gk20a *g); u32 nvgpu_ltc_get_cacheline_size(struct gk20a *g); Removed redudnant ltc.init_fs_state call from vgpu init sequence since it is getting called from nvgpu_init_ltc_support. NVGPU-2044 Change-Id: I3c256dc3866f894c38715aa2609e85bd2e5cfe5a Signed-off-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2073417 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/*
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* Copyright (c) 2017-2019, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/ltc.h>
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#include <nvgpu/dma.h>
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#include <nvgpu/nvgpu_mem.h>
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#include <nvgpu/gk20a.h>
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#include "gk20a/gr_gk20a.h"
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void nvgpu_ltc_remove_support(struct gk20a *g)
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{
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struct nvgpu_ltc *ltc = g->ltc;
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nvgpu_log_fn(g, " ");
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if (ltc == NULL) {
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return;
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}
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nvgpu_kfree(g, ltc);
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g->ltc = NULL;
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}
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int nvgpu_init_ltc_support(struct gk20a *g)
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{
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struct nvgpu_ltc *ltc = g->ltc;
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nvgpu_log_fn(g, " ");
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g->mm.ltc_enabled_current = true;
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g->mm.ltc_enabled_target = true;
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if (ltc == NULL) {
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ltc = nvgpu_kzalloc(g, sizeof(*ltc));
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if (ltc == NULL) {
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return -ENOMEM;
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}
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g->ltc = ltc;
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nvgpu_spinlock_init(&g->ltc->ltc_enabled_lock);
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}
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if (g->ops.ltc.init_fs_state != NULL) {
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g->ops.ltc.init_fs_state(g);
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}
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return 0;
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}
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void nvgpu_ltc_sync_enabled(struct gk20a *g)
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{
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if (g->ops.ltc.set_enabled == NULL) {
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return;
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}
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nvgpu_spinlock_acquire(&g->ltc->ltc_enabled_lock);
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if (g->mm.ltc_enabled_current != g->mm.ltc_enabled_target) {
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g->ops.ltc.set_enabled(g, g->mm.ltc_enabled_target);
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g->mm.ltc_enabled_current = g->mm.ltc_enabled_target;
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}
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nvgpu_spinlock_release(&g->ltc->ltc_enabled_lock);
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}
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u32 nvgpu_ltc_get_ltc_count(struct gk20a *g)
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{
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return g->ltc->ltc_count;
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}
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u32 nvgpu_ltc_get_slices_per_ltc(struct gk20a *g)
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{
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return g->ltc->slices_per_ltc;
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}
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u32 nvgpu_ltc_get_cacheline_size(struct gk20a *g)
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{
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return g->ltc->cacheline_size;
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}
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