From 2a2c16af5f9f1ccfc93a13e820d5381e5c881e92 Mon Sep 17 00:00:00 2001 From: Terje Bergstrom Date: Wed, 18 Apr 2018 12:59:00 -0700 Subject: gpu: nvgpu: Move Linux files away from common Move all Linux source code files to drivers/gpu/nvgpu/os/linux from drivers/gpu/nvgpu/common/linux. This changes the meaning of common to be OS independent. JIRA NVGPU-598 JIRA NVGPU-601 Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9 Signed-off-by: Terje Bergstrom Reviewed-on: https://git-master.nvidia.com/r/1747714 Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c | 475 ----------------------- 1 file changed, 475 deletions(-) delete mode 100644 drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c (limited to 'drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c') diff --git a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c b/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c deleted file mode 100644 index 0d224eb9..00000000 --- a/drivers/gpu/nvgpu/common/linux/vgpu/vgpu_linux.c +++ /dev/null @@ -1,475 +0,0 @@ -/* - * Virtualized GPU for Linux - * - * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include -#include -#include -#include -#include - -#include "vgpu_linux.h" -#include "vgpu/fecs_trace_vgpu.h" -#include "clk_vgpu.h" -#include "gk20a/tsg_gk20a.h" -#include "gk20a/channel_gk20a.h" -#include "gk20a/regops_gk20a.h" -#include "gm20b/hal_gm20b.h" - -#include "common/linux/module.h" -#include "common/linux/os_linux.h" -#include "common/linux/ioctl.h" -#include "common/linux/scale.h" -#include "common/linux/driver_common.h" -#include "common/linux/platform_gk20a.h" - -#include - -struct vgpu_priv_data *vgpu_get_priv_data(struct gk20a *g) -{ - struct gk20a_platform *plat = gk20a_get_platform(dev_from_gk20a(g)); - - return (struct vgpu_priv_data *)plat->vgpu_priv; -} - -static void vgpu_remove_support(struct gk20a *g) -{ - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - - vgpu_remove_support_common(g); - - /* free mappings to registers, etc*/ - - if (l->bar1) { - iounmap(l->bar1); - l->bar1 = NULL; - } -} - -static void vgpu_init_vars(struct gk20a *g, struct gk20a_platform *platform) -{ - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - - nvgpu_mutex_init(&g->poweron_lock); - nvgpu_mutex_init(&g->poweroff_lock); - nvgpu_mutex_init(&g->ctxsw_disable_lock); - l->regs_saved = l->regs; - l->bar1_saved = l->bar1; - - g->aggressive_sync_destroy = platform->aggressive_sync_destroy; - g->aggressive_sync_destroy_thresh = platform->aggressive_sync_destroy_thresh; - g->has_syncpoints = platform->has_syncpoints; - g->ptimer_src_freq = platform->ptimer_src_freq; - g->can_railgate = platform->can_railgate_init; - g->railgate_delay = platform->railgate_delay_init; - - __nvgpu_set_enabled(g, NVGPU_MM_UNIFY_ADDRESS_SPACES, - platform->unify_address_spaces); -} - -static int vgpu_init_support(struct platform_device *pdev) -{ - struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - struct gk20a *g = get_gk20a(&pdev->dev); - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - void __iomem *regs; - int err = 0; - - if (!r) { - nvgpu_err(g, "failed to get gk20a bar1"); - err = -ENXIO; - goto fail; - } - - if (r->name && !strcmp(r->name, "/vgpu")) { - regs = devm_ioremap_resource(&pdev->dev, r); - if (IS_ERR(regs)) { - nvgpu_err(g, "failed to remap gk20a bar1"); - err = PTR_ERR(regs); - goto fail; - } - l->bar1 = regs; - l->bar1_mem = r; - } - - nvgpu_mutex_init(&g->dbg_sessions_lock); - nvgpu_mutex_init(&g->client_lock); - - nvgpu_init_list_node(&g->profiler_objects); - - g->dbg_regops_tmp_buf = nvgpu_kzalloc(g, SZ_4K); - if (!g->dbg_regops_tmp_buf) { - nvgpu_err(g, "couldn't allocate regops tmp buf"); - return -ENOMEM; - } - g->dbg_regops_tmp_buf_ops = - SZ_4K / sizeof(g->dbg_regops_tmp_buf[0]); - - g->remove_support = vgpu_remove_support; - return 0; - - fail: - vgpu_remove_support(g); - return err; -} - -int vgpu_pm_prepare_poweroff(struct device *dev) -{ - struct gk20a *g = get_gk20a(dev); - int ret = 0; - - nvgpu_log_fn(g, " "); - - if (!g->power_on) - return 0; - - ret = gk20a_channel_suspend(g); - if (ret) - return ret; - - g->power_on = false; - - return ret; -} - -int vgpu_pm_finalize_poweron(struct device *dev) -{ - struct gk20a *g = get_gk20a(dev); - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - int err; - - nvgpu_log_fn(g, " "); - - if (g->power_on) - return 0; - - g->power_on = true; - - vgpu_detect_chip(g); - err = vgpu_init_hal(g); - if (err) - goto done; - - if (g->ops.ltc.init_fs_state) - g->ops.ltc.init_fs_state(g); - - err = nvgpu_init_ltc_support(g); - if (err) { - nvgpu_err(g, "failed to init ltc"); - goto done; - } - - err = vgpu_init_mm_support(g); - if (err) { - nvgpu_err(g, "failed to init gk20a mm"); - goto done; - } - - err = vgpu_init_fifo_support(g); - if (err) { - nvgpu_err(g, "failed to init gk20a fifo"); - goto done; - } - - err = vgpu_init_gr_support(g); - if (err) { - nvgpu_err(g, "failed to init gk20a gr"); - goto done; - } - - err = g->ops.chip_init_gpu_characteristics(g); - if (err) { - nvgpu_err(g, "failed to init gk20a gpu characteristics"); - goto done; - } - - err = nvgpu_finalize_poweron_linux(l); - if (err) - goto done; - -#ifdef CONFIG_GK20A_CTXSW_TRACE - gk20a_ctxsw_trace_init(g); -#endif - gk20a_sched_ctrl_init(g); - gk20a_channel_resume(g); - - g->sw_ready = true; - -done: - return err; -} - -static int vgpu_qos_notify(struct notifier_block *nb, - unsigned long n, void *data) -{ - struct gk20a_scale_profile *profile = - container_of(nb, struct gk20a_scale_profile, - qos_notify_block); - struct gk20a *g = get_gk20a(profile->dev); - u32 max_freq; - int err; - - nvgpu_log_fn(g, " "); - - max_freq = (u32)pm_qos_read_max_bound(PM_QOS_GPU_FREQ_BOUNDS); - err = vgpu_clk_cap_rate(profile->dev, max_freq); - if (err) - nvgpu_err(g, "%s failed, err=%d", __func__, err); - - return NOTIFY_OK; /* need notify call further */ -} - -static int vgpu_pm_qos_init(struct device *dev) -{ - struct gk20a *g = get_gk20a(dev); - struct gk20a_scale_profile *profile = g->scale_profile; - - if (IS_ENABLED(CONFIG_GK20A_DEVFREQ)) { - if (!profile) - return -EINVAL; - } else { - profile = nvgpu_kzalloc(g, sizeof(*profile)); - if (!profile) - return -ENOMEM; - g->scale_profile = profile; - } - - profile->dev = dev; - profile->qos_notify_block.notifier_call = vgpu_qos_notify; - pm_qos_add_max_notifier(PM_QOS_GPU_FREQ_BOUNDS, - &profile->qos_notify_block); - return 0; -} - -static void vgpu_pm_qos_remove(struct device *dev) -{ - struct gk20a *g = get_gk20a(dev); - - pm_qos_remove_max_notifier(PM_QOS_GPU_FREQ_BOUNDS, - &g->scale_profile->qos_notify_block); - nvgpu_kfree(g, g->scale_profile); - g->scale_profile = NULL; -} - -static int vgpu_pm_init(struct device *dev) -{ - struct gk20a *g = get_gk20a(dev); - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - unsigned long *freqs; - int num_freqs; - int err = 0; - - nvgpu_log_fn(g, " "); - - if (nvgpu_platform_is_simulation(g)) - return 0; - - __pm_runtime_disable(dev, false); - - if (IS_ENABLED(CONFIG_GK20A_DEVFREQ)) - gk20a_scale_init(dev); - - if (l->devfreq) { - /* set min/max frequency based on frequency table */ - err = vgpu_clk_get_freqs(dev, &freqs, &num_freqs); - if (err) - return err; - - if (num_freqs < 1) - return -EINVAL; - - l->devfreq->min_freq = freqs[0]; - l->devfreq->max_freq = freqs[num_freqs - 1]; - } - - err = vgpu_pm_qos_init(dev); - if (err) - return err; - - return err; -} - -int vgpu_probe(struct platform_device *pdev) -{ - struct nvgpu_os_linux *l; - struct gk20a *gk20a; - int err; - struct device *dev = &pdev->dev; - struct gk20a_platform *platform = gk20a_get_platform(dev); - struct vgpu_priv_data *priv; - - if (!platform) { - dev_err(dev, "no platform data\n"); - return -ENODATA; - } - - l = kzalloc(sizeof(*l), GFP_KERNEL); - if (!l) { - dev_err(dev, "couldn't allocate gk20a support"); - return -ENOMEM; - } - gk20a = &l->g; - - nvgpu_log_fn(gk20a, " "); - - nvgpu_init_gk20a(gk20a); - - nvgpu_kmem_init(gk20a); - - err = nvgpu_init_enabled_flags(gk20a); - if (err) { - kfree(gk20a); - return err; - } - - l->dev = dev; - if (tegra_platform_is_vdk()) - __nvgpu_set_enabled(gk20a, NVGPU_IS_FMODEL, true); - - gk20a->is_virtual = true; - - priv = nvgpu_kzalloc(gk20a, sizeof(*priv)); - if (!priv) { - kfree(gk20a); - return -ENOMEM; - } - - platform->g = gk20a; - platform->vgpu_priv = priv; - - err = gk20a_user_init(dev, INTERFACE_NAME, &nvgpu_class); - if (err) - return err; - - vgpu_init_support(pdev); - - vgpu_init_vars(gk20a, platform); - - init_rwsem(&l->busy_lock); - - nvgpu_spinlock_init(&gk20a->mc_enable_lock); - - gk20a->ch_wdt_timeout_ms = platform->ch_wdt_timeout_ms; - - /* Initialize the platform interface. */ - err = platform->probe(dev); - if (err) { - if (err == -EPROBE_DEFER) - nvgpu_info(gk20a, "platform probe failed"); - else - nvgpu_err(gk20a, "platform probe failed"); - return err; - } - - if (platform->late_probe) { - err = platform->late_probe(dev); - if (err) { - nvgpu_err(gk20a, "late probe failed"); - return err; - } - } - - err = vgpu_comm_init(gk20a); - if (err) { - nvgpu_err(gk20a, "failed to init comm interface"); - return -ENOSYS; - } - - priv->virt_handle = vgpu_connect(); - if (!priv->virt_handle) { - nvgpu_err(gk20a, "failed to connect to server node"); - vgpu_comm_deinit(); - return -ENOSYS; - } - - err = vgpu_get_constants(gk20a); - if (err) { - vgpu_comm_deinit(); - return err; - } - - err = vgpu_pm_init(dev); - if (err) { - nvgpu_err(gk20a, "pm init failed"); - return err; - } - - err = nvgpu_thread_create(&priv->intr_handler, gk20a, - vgpu_intr_thread, "gk20a"); - if (err) - return err; - - gk20a_debug_init(gk20a, "gpu.0"); - - /* Set DMA parameters to allow larger sgt lists */ - dev->dma_parms = &l->dma_parms; - dma_set_max_seg_size(dev, UINT_MAX); - - gk20a->gr_idle_timeout_default = NVGPU_DEFAULT_GR_IDLE_TIMEOUT; - gk20a->timeouts_disabled_by_user = false; - nvgpu_atomic_set(&gk20a->timeouts_disabled_refcount, 0); - - vgpu_create_sysfs(dev); - gk20a_init_gr(gk20a); - - nvgpu_log_info(gk20a, "total ram pages : %lu", totalram_pages); - gk20a->gr.max_comptag_mem = totalram_pages - >> (10 - (PAGE_SHIFT - 10)); - - nvgpu_ref_init(&gk20a->refcount); - - return 0; -} - -int vgpu_remove(struct platform_device *pdev) -{ - struct device *dev = &pdev->dev; - struct gk20a *g = get_gk20a(dev); - - nvgpu_log_fn(g, " "); - - vgpu_pm_qos_remove(dev); - if (g->remove_support) - g->remove_support(g); - - vgpu_comm_deinit(); - gk20a_sched_ctrl_cleanup(g); - gk20a_user_deinit(dev, &nvgpu_class); - vgpu_remove_sysfs(dev); - gk20a_get_platform(dev)->g = NULL; - gk20a_put(g); - - return 0; -} - -bool vgpu_is_reduced_bar1(struct gk20a *g) -{ - struct fifo_gk20a *f = &g->fifo; - struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); - - return resource_size(l->bar1_mem) == (resource_size_t)f->userd.size; -} -- cgit v1.2.2