mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-24 02:22:34 +03:00
961925be02
This reverts commit c1ea9e3955.
Reason for revert: ap_vulkan, ap_opengles, ap_mods tests failures
Bug 3661058
Bug 3661080
Bug 3659004
Change-Id: I929b5675a4fb0ddc8cbf3eeefc982b4ba04ddc59
Signed-off-by: Krishna Reddy <vdumpa@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2718996
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
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* GA100 FB
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*
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* Copyright (c) 2020, 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/io.h>
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#include <nvgpu/nvgpu_init.h>
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#include <nvgpu/timers.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/sizes.h>
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#include "hal/fb/fb_ga100.h"
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#include <nvgpu/hw/ga100/hw_fb_ga100.h>
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#define SIZE_256K (SZ_1K << 8U)
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#define HW_SCRUB_TIMEOUT_DEFAULT 100 /* usec */
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#define HW_SCRUB_TIMEOUT_MAX 2000000 /* usec */
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void ga100_fb_init_fs_state(struct gk20a *g)
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{
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u32 retries = HW_SCRUB_TIMEOUT_MAX / HW_SCRUB_TIMEOUT_DEFAULT;
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/* wait for memory to be accessible */
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do {
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u32 w = nvgpu_readl(g, fb_niso_scrub_status_r());
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if (fb_niso_scrub_status_flag_v(w) != 0U) {
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nvgpu_log_fn(g, "done");
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break;
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}
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nvgpu_udelay(HW_SCRUB_TIMEOUT_DEFAULT);
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--retries;
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} while (retries != 0);
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}
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#ifdef CONFIG_NVGPU_COMPRESSION
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u64 ga100_fb_compression_page_size(struct gk20a *g)
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{
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return SIZE_256K;
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}
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bool ga100_fb_is_comptagline_mode_enabled(struct gk20a *g)
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{
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u32 reg = 0U;
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bool result = true;
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gk20a_busy_noresume(g);
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if (nvgpu_is_powered_off(g)) {
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goto done;
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}
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reg = nvgpu_readl(g, fb_mmu_hypervisor_ctl_r());
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result = (fb_mmu_hypervisor_ctl_force_cbc_raw_mode_v(reg) ==
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fb_mmu_hypervisor_ctl_force_cbc_raw_mode_disable_v());
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done:
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gk20a_idle_nosuspend(g);
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return result;
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}
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#endif
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