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_gp106.c | 51 ++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 drivers/gpu/nvgpu/common/fb/fb_gp106.c (limited to 'drivers/gpu/nvgpu/common/fb/fb_gp106.c') diff --git a/drivers/gpu/nvgpu/common/fb/fb_gp106.c b/drivers/gpu/nvgpu/common/fb/fb_gp106.c new file mode 100644 index 00000000..6f257db4 --- /dev/null +++ b/drivers/gpu/nvgpu/common/fb/fb_gp106.c @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2016-2018, 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 "gk20a/gk20a.h" + +#include "fb_gp10b.h" +#include "fb_gp106.h" + +#include + +#define HW_SCRUB_TIMEOUT_DEFAULT 100 /* usec */ +#define HW_SCRUB_TIMEOUT_MAX 2000000 /* usec */ + +void gp106_fb_reset(struct gk20a *g) +{ + u32 val; + + int retries = HW_SCRUB_TIMEOUT_MAX / HW_SCRUB_TIMEOUT_DEFAULT; + /* wait for memory to be accessible */ + do { + u32 w = gk20a_readl(g, fb_niso_scrub_status_r()); + if (fb_niso_scrub_status_flag_v(w)) { + nvgpu_log_fn(g, "done"); + break; + } + nvgpu_udelay(HW_SCRUB_TIMEOUT_DEFAULT); + } while (--retries); + + val = gk20a_readl(g, fb_mmu_priv_level_mask_r()); + val &= ~fb_mmu_priv_level_mask_write_violation_m(); + gk20a_writel(g, fb_mmu_priv_level_mask_r(), val); +} -- cgit v1.2.2