From b97bcb3c689426a1b099e88ceef4d55584e2362b Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Mon, 2 Jul 2018 14:30:26 -0700 Subject: gpu: nvgpu: Move FB to common Move all FB HAL implementations to common/fb. JIRA NVGPU-596 Change-Id: Id4ea09d608f5d6d1b245bddac09ecf1444b8ab30 Signed-off-by: Terje Bergstrom Reviewed-on: https://git-master.nvidia.com/r/1769724 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/common/fb/fb_gk20a.c | 123 +++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 drivers/gpu/nvgpu/common/fb/fb_gk20a.c (limited to 'drivers/gpu/nvgpu/common/fb/fb_gk20a.c') diff --git a/drivers/gpu/nvgpu/common/fb/fb_gk20a.c b/drivers/gpu/nvgpu/common/fb/fb_gk20a.c new file mode 100644 index 00000000..d27ac9d0 --- /dev/null +++ b/drivers/gpu/nvgpu/common/fb/fb_gk20a.c @@ -0,0 +1,123 @@ +/* + * GK20A memory interface + * + * Copyright (c) 2014-2018, 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 + +#include "gk20a/gk20a.h" + +#include "fb_gk20a.h" + +#include + +#include +#include + +void fb_gk20a_reset(struct gk20a *g) +{ + u32 val; + + nvgpu_log_info(g, "reset gk20a fb"); + + g->ops.mc.reset(g, mc_enable_pfb_enabled_f() | + mc_enable_l2_enabled_f() | + mc_enable_xbar_enabled_f() | + mc_enable_hub_enabled_f()); + + val = gk20a_readl(g, mc_elpg_enable_r()); + val |= mc_elpg_enable_xbar_enabled_f() + | mc_elpg_enable_pfb_enabled_f() + | mc_elpg_enable_hub_enabled_f(); + gk20a_writel(g, mc_elpg_enable_r(), val); +} + +void gk20a_fb_init_hw(struct gk20a *g) +{ + u32 addr = nvgpu_mem_get_addr(g, &g->mm.sysmem_flush) >> 8; + + gk20a_writel(g, fb_niso_flush_sysmem_addr_r(), addr); +} + +void gk20a_fb_tlb_invalidate(struct gk20a *g, struct nvgpu_mem *pdb) +{ + struct nvgpu_timeout timeout; + u32 addr_lo; + u32 data; + + nvgpu_log_fn(g, " "); + + /* pagetables are considered sw states which are preserved after + prepare_poweroff. When gk20a deinit releases those pagetables, + common code in vm unmap path calls tlb invalidate that touches + hw. Use the power_on flag to skip tlb invalidation when gpu + power is turned off */ + + if (!g->power_on) + return; + + addr_lo = u64_lo32(nvgpu_mem_get_addr(g, pdb) >> 12); + + nvgpu_mutex_acquire(&g->mm.tlb_lock); + + trace_gk20a_mm_tlb_invalidate(g->name); + + nvgpu_timeout_init(g, &timeout, 1000, NVGPU_TIMER_RETRY_TIMER); + + do { + data = gk20a_readl(g, fb_mmu_ctrl_r()); + if (fb_mmu_ctrl_pri_fifo_space_v(data) != 0) + break; + nvgpu_udelay(2); + } while (!nvgpu_timeout_expired_msg(&timeout, + "wait mmu fifo space")); + + if (nvgpu_timeout_peek_expired(&timeout)) + goto out; + + nvgpu_timeout_init(g, &timeout, 1000, NVGPU_TIMER_RETRY_TIMER); + + gk20a_writel(g, fb_mmu_invalidate_pdb_r(), + fb_mmu_invalidate_pdb_addr_f(addr_lo) | + nvgpu_aperture_mask(g, pdb, + fb_mmu_invalidate_pdb_aperture_sys_mem_f(), + fb_mmu_invalidate_pdb_aperture_sys_mem_f(), + fb_mmu_invalidate_pdb_aperture_vid_mem_f())); + + gk20a_writel(g, fb_mmu_invalidate_r(), + fb_mmu_invalidate_all_va_true_f() | + fb_mmu_invalidate_trigger_true_f()); + + do { + data = gk20a_readl(g, fb_mmu_ctrl_r()); + if (fb_mmu_ctrl_pri_fifo_empty_v(data) != + fb_mmu_ctrl_pri_fifo_empty_false_f()) + break; + nvgpu_udelay(2); + } while (!nvgpu_timeout_expired_msg(&timeout, + "wait mmu invalidate")); + + trace_gk20a_mm_tlb_invalidate_done(g->name); + +out: + nvgpu_mutex_release(&g->mm.tlb_lock); +} -- cgit v1.2.2