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a0fa2b0258
Add wrapper header file nvgpu/bug.h. It #includes <linux/bug.h> in Linux. JIRA NVGPU-13 Change-Id: I7bf02ba554333f7cbd79d72bd1cb423c81ebcb49 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1461545 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
73 lines
2.2 KiB
C
73 lines
2.2 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <nvgpu/page_allocator.h>
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#include <nvgpu/bug.h>
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#include "gk20a/gk20a.h"
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#include "gk20a/mm_gk20a.h"
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#include "gk20a/pramin_gk20a.h"
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#include <nvgpu/hw/gk20a/hw_bus_gk20a.h>
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#include <nvgpu/hw/gk20a/hw_pram_gk20a.h>
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/* WARNING: returns pramin_window_lock taken, complement with pramin_exit() */
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static u32 gk20a_pramin_enter(struct gk20a *g, struct nvgpu_mem *mem,
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struct page_alloc_chunk *chunk, u32 w)
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{
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u64 bufbase = chunk->base;
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u64 addr = bufbase + w * sizeof(u32);
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u32 hi = (u32)((addr & ~(u64)0xfffff)
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>> bus_bar0_window_target_bar0_window_base_shift_v());
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u32 lo = (u32)(addr & 0xfffff);
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u32 win = nvgpu_aperture_mask(g, mem,
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bus_bar0_window_target_sys_mem_noncoherent_f(),
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bus_bar0_window_target_vid_mem_f()) |
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bus_bar0_window_base_f(hi);
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gk20a_dbg(gpu_dbg_mem,
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"0x%08x:%08x begin for %p,%p at [%llx,%llx] (sz %llx)",
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hi, lo, mem, chunk, bufbase,
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bufbase + chunk->length, chunk->length);
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WARN_ON(!bufbase);
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nvgpu_spinlock_acquire(&g->mm.pramin_window_lock);
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if (g->mm.pramin_window != win) {
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gk20a_writel(g, bus_bar0_window_r(), win);
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gk20a_readl(g, bus_bar0_window_r());
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g->mm.pramin_window = win;
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}
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return lo;
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}
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static void gk20a_pramin_exit(struct gk20a *g, struct nvgpu_mem *mem,
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struct page_alloc_chunk *chunk)
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{
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gk20a_dbg(gpu_dbg_mem, "end for %p,%p", mem, chunk);
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nvgpu_spinlock_release(&g->mm.pramin_window_lock);
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}
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void gk20a_init_pramin_ops(struct gpu_ops *gops)
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{
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gops->pramin.enter = gk20a_pramin_enter;
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gops->pramin.exit = gk20a_pramin_exit;
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gops->pramin.data032_r = pram_data032_r;
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}
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