| /* |
| * Copyright (C) 2013 Red Hat |
| * Author: Rob Clark <robdclark@gmail.com> |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 as published by |
| * the Free Software Foundation. |
| * |
| * This program is distributed in the hope that 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 <http://www.gnu.org/licenses/>. |
| */ |
| |
| #include "msm_gpu.h" |
| #include "msm_gem.h" |
| #include "msm_mmu.h" |
| #include "msm_fence.h" |
| |
| |
| /* |
| * Power Management: |
| */ |
| |
| #ifdef DOWNSTREAM_CONFIG_MSM_BUS_SCALING |
| #include <mach/board.h> |
| static void bs_init(struct msm_gpu *gpu) |
| { |
| if (gpu->bus_scale_table) { |
| gpu->bsc = msm_bus_scale_register_client(gpu->bus_scale_table); |
| DBG("bus scale client: %08x", gpu->bsc); |
| } |
| } |
| |
| static void bs_fini(struct msm_gpu *gpu) |
| { |
| if (gpu->bsc) { |
| msm_bus_scale_unregister_client(gpu->bsc); |
| gpu->bsc = 0; |
| } |
| } |
| |
| static void bs_set(struct msm_gpu *gpu, int idx) |
| { |
| if (gpu->bsc) { |
| DBG("set bus scaling: %d", idx); |
| msm_bus_scale_client_update_request(gpu->bsc, idx); |
| } |
| } |
| #else |
| static void bs_init(struct msm_gpu *gpu) {} |
| static void bs_fini(struct msm_gpu *gpu) {} |
| static void bs_set(struct msm_gpu *gpu, int idx) {} |
| #endif |
| |
| static int enable_pwrrail(struct msm_gpu *gpu) |
| { |
| struct drm_device *dev = gpu->dev; |
| int ret = 0; |
| |
| if (gpu->gpu_reg) { |
| ret = regulator_enable(gpu->gpu_reg); |
| if (ret) { |
| dev_err(dev->dev, "failed to enable 'gpu_reg': %d\n", ret); |
| return ret; |
| } |
| } |
| |
| if (gpu->gpu_cx) { |
| ret = regulator_enable(gpu->gpu_cx); |
| if (ret) { |
| dev_err(dev->dev, "failed to enable 'gpu_cx': %d\n", ret); |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int disable_pwrrail(struct msm_gpu *gpu) |
| { |
| if (gpu->gpu_cx) |
| regulator_disable(gpu->gpu_cx); |
| if (gpu->gpu_reg) |
| regulator_disable(gpu->gpu_reg); |
| return 0; |
| } |
| |
| static int enable_clk(struct msm_gpu *gpu) |
| { |
| struct clk *rate_clk = NULL; |
| int i; |
| |
| /* NOTE: kgsl_pwrctrl_clk() ignores grp_clks[0].. */ |
| for (i = ARRAY_SIZE(gpu->grp_clks) - 1; i > 0; i--) { |
| if (gpu->grp_clks[i]) { |
| clk_prepare(gpu->grp_clks[i]); |
| rate_clk = gpu->grp_clks[i]; |
| } |
| } |
| |
| if (rate_clk && gpu->fast_rate) |
| clk_set_rate(rate_clk, gpu->fast_rate); |
| |
| for (i = ARRAY_SIZE(gpu->grp_clks) - 1; i > 0; i--) |
| if (gpu->grp_clks[i]) |
| clk_enable(gpu->grp_clks[i]); |
| |
| return 0; |
| } |
| |
| static int disable_clk(struct msm_gpu *gpu) |
| { |
| struct clk *rate_clk = NULL; |
| int i; |
| |
| /* NOTE: kgsl_pwrctrl_clk() ignores grp_clks[0].. */ |
| for (i = ARRAY_SIZE(gpu->grp_clks) - 1; i > 0; i--) { |
| if (gpu->grp_clks[i]) { |
| clk_disable(gpu->grp_clks[i]); |
| rate_clk = gpu->grp_clks[i]; |
| } |
| } |
| |
| if (rate_clk && gpu->slow_rate) |
| clk_set_rate(rate_clk, gpu->slow_rate); |
| |
| for (i = ARRAY_SIZE(gpu->grp_clks) - 1; i > 0; i--) |
| if (gpu->grp_clks[i]) |
| clk_unprepare(gpu->grp_clks[i]); |
| |
| return 0; |
| } |
| |
| static int enable_axi(struct msm_gpu *gpu) |
| { |
| if (gpu->ebi1_clk) |
| clk_prepare_enable(gpu->ebi1_clk); |
| if (gpu->bus_freq) |
| bs_set(gpu, gpu->bus_freq); |
| return 0; |
| } |
| |
| static int disable_axi(struct msm_gpu *gpu) |
| { |
| if (gpu->ebi1_clk) |
| clk_disable_unprepare(gpu->ebi1_clk); |
| if (gpu->bus_freq) |
| bs_set(gpu, 0); |
| return 0; |
| } |
| |
| int msm_gpu_pm_resume(struct msm_gpu *gpu) |
| { |
| struct drm_device *dev = gpu->dev; |
| int ret; |
| |
| DBG("%s: active_cnt=%d", gpu->name, gpu->active_cnt); |
| |
| WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
| |
| if (gpu->active_cnt++ > 0) |
| return 0; |
| |
| if (WARN_ON(gpu->active_cnt <= 0)) |
| return -EINVAL; |
| |
| ret = enable_pwrrail(gpu); |
| if (ret) |
| return ret; |
| |
| ret = enable_clk(gpu); |
| if (ret) |
| return ret; |
| |
| ret = enable_axi(gpu); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |
| |
| int msm_gpu_pm_suspend(struct msm_gpu *gpu) |
| { |
| struct drm_device *dev = gpu->dev; |
| int ret; |
| |
| DBG("%s: active_cnt=%d", gpu->name, gpu->active_cnt); |
| |
| WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
| |
| if (--gpu->active_cnt > 0) |
| return 0; |
| |
| if (WARN_ON(gpu->active_cnt < 0)) |
| return -EINVAL; |
| |
| ret = disable_axi(gpu); |
| if (ret) |
| return ret; |
| |
| ret = disable_clk(gpu); |
| if (ret) |
| return ret; |
| |
| ret = disable_pwrrail(gpu); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |
| |
| /* |
| * Inactivity detection (for suspend): |
| */ |
| |
| static void inactive_worker(struct work_struct *work) |
| { |
| struct msm_gpu *gpu = container_of(work, struct msm_gpu, inactive_work); |
| struct drm_device *dev = gpu->dev; |
| |
| if (gpu->inactive) |
| return; |
| |
| DBG("%s: inactive!\n", gpu->name); |
| mutex_lock(&dev->struct_mutex); |
| if (!(msm_gpu_active(gpu) || gpu->inactive)) { |
| disable_axi(gpu); |
| disable_clk(gpu); |
| gpu->inactive = true; |
| } |
| mutex_unlock(&dev->struct_mutex); |
| } |
| |
| static void inactive_handler(unsigned long data) |
| { |
| struct msm_gpu *gpu = (struct msm_gpu *)data; |
| struct msm_drm_private *priv = gpu->dev->dev_private; |
| |
| queue_work(priv->wq, &gpu->inactive_work); |
| } |
| |
| /* cancel inactive timer and make sure we are awake: */ |
| static void inactive_cancel(struct msm_gpu *gpu) |
| { |
| DBG("%s", gpu->name); |
| del_timer(&gpu->inactive_timer); |
| if (gpu->inactive) { |
| enable_clk(gpu); |
| enable_axi(gpu); |
| gpu->inactive = false; |
| } |
| } |
| |
| static void inactive_start(struct msm_gpu *gpu) |
| { |
| DBG("%s", gpu->name); |
| mod_timer(&gpu->inactive_timer, |
| round_jiffies_up(jiffies + DRM_MSM_INACTIVE_JIFFIES)); |
| } |
| |
| /* |
| * Hangcheck detection for locked gpu: |
| */ |
| |
| static void retire_submits(struct msm_gpu *gpu); |
| |
| static void recover_worker(struct work_struct *work) |
| { |
| struct msm_gpu *gpu = container_of(work, struct msm_gpu, recover_work); |
| struct drm_device *dev = gpu->dev; |
| struct msm_gem_submit *submit; |
| uint32_t fence = gpu->funcs->last_fence(gpu); |
| |
| msm_update_fence(gpu->fctx, fence + 1); |
| |
| mutex_lock(&dev->struct_mutex); |
| |
| dev_err(dev->dev, "%s: hangcheck recover!\n", gpu->name); |
| list_for_each_entry(submit, &gpu->submit_list, node) { |
| if (submit->fence->seqno == (fence + 1)) { |
| struct task_struct *task; |
| |
| rcu_read_lock(); |
| task = pid_task(submit->pid, PIDTYPE_PID); |
| if (task) { |
| dev_err(dev->dev, "%s: offending task: %s\n", |
| gpu->name, task->comm); |
| } |
| rcu_read_unlock(); |
| break; |
| } |
| } |
| |
| if (msm_gpu_active(gpu)) { |
| /* retire completed submits, plus the one that hung: */ |
| retire_submits(gpu); |
| |
| inactive_cancel(gpu); |
| gpu->funcs->recover(gpu); |
| |
| /* replay the remaining submits after the one that hung: */ |
| list_for_each_entry(submit, &gpu->submit_list, node) { |
| gpu->funcs->submit(gpu, submit, NULL); |
| } |
| } |
| |
| mutex_unlock(&dev->struct_mutex); |
| |
| msm_gpu_retire(gpu); |
| } |
| |
| static void hangcheck_timer_reset(struct msm_gpu *gpu) |
| { |
| DBG("%s", gpu->name); |
| mod_timer(&gpu->hangcheck_timer, |
| round_jiffies_up(jiffies + DRM_MSM_HANGCHECK_JIFFIES)); |
| } |
| |
| static void hangcheck_handler(unsigned long data) |
| { |
| struct msm_gpu *gpu = (struct msm_gpu *)data; |
| struct drm_device *dev = gpu->dev; |
| struct msm_drm_private *priv = dev->dev_private; |
| uint32_t fence = gpu->funcs->last_fence(gpu); |
| |
| if (fence != gpu->hangcheck_fence) { |
| /* some progress has been made.. ya! */ |
| gpu->hangcheck_fence = fence; |
| } else if (fence < gpu->fctx->last_fence) { |
| /* no progress and not done.. hung! */ |
| gpu->hangcheck_fence = fence; |
| dev_err(dev->dev, "%s: hangcheck detected gpu lockup!\n", |
| gpu->name); |
| dev_err(dev->dev, "%s: completed fence: %u\n", |
| gpu->name, fence); |
| dev_err(dev->dev, "%s: submitted fence: %u\n", |
| gpu->name, gpu->fctx->last_fence); |
| queue_work(priv->wq, &gpu->recover_work); |
| } |
| |
| /* if still more pending work, reset the hangcheck timer: */ |
| if (gpu->fctx->last_fence > gpu->hangcheck_fence) |
| hangcheck_timer_reset(gpu); |
| |
| /* workaround for missing irq: */ |
| queue_work(priv->wq, &gpu->retire_work); |
| } |
| |
| /* |
| * Performance Counters: |
| */ |
| |
| /* called under perf_lock */ |
| static int update_hw_cntrs(struct msm_gpu *gpu, uint32_t ncntrs, uint32_t *cntrs) |
| { |
| uint32_t current_cntrs[ARRAY_SIZE(gpu->last_cntrs)]; |
| int i, n = min(ncntrs, gpu->num_perfcntrs); |
| |
| /* read current values: */ |
| for (i = 0; i < gpu->num_perfcntrs; i++) |
| current_cntrs[i] = gpu_read(gpu, gpu->perfcntrs[i].sample_reg); |
| |
| /* update cntrs: */ |
| for (i = 0; i < n; i++) |
| cntrs[i] = current_cntrs[i] - gpu->last_cntrs[i]; |
| |
| /* save current values: */ |
| for (i = 0; i < gpu->num_perfcntrs; i++) |
| gpu->last_cntrs[i] = current_cntrs[i]; |
| |
| return n; |
| } |
| |
| static void update_sw_cntrs(struct msm_gpu *gpu) |
| { |
| ktime_t time; |
| uint32_t elapsed; |
| unsigned long flags; |
| |
| spin_lock_irqsave(&gpu->perf_lock, flags); |
| if (!gpu->perfcntr_active) |
| goto out; |
| |
| time = ktime_get(); |
| elapsed = ktime_to_us(ktime_sub(time, gpu->last_sample.time)); |
| |
| gpu->totaltime += elapsed; |
| if (gpu->last_sample.active) |
| gpu->activetime += elapsed; |
| |
| gpu->last_sample.active = msm_gpu_active(gpu); |
| gpu->last_sample.time = time; |
| |
| out: |
| spin_unlock_irqrestore(&gpu->perf_lock, flags); |
| } |
| |
| void msm_gpu_perfcntr_start(struct msm_gpu *gpu) |
| { |
| unsigned long flags; |
| |
| spin_lock_irqsave(&gpu->perf_lock, flags); |
| /* we could dynamically enable/disable perfcntr registers too.. */ |
| gpu->last_sample.active = msm_gpu_active(gpu); |
| gpu->last_sample.time = ktime_get(); |
| gpu->activetime = gpu->totaltime = 0; |
| gpu->perfcntr_active = true; |
| update_hw_cntrs(gpu, 0, NULL); |
| spin_unlock_irqrestore(&gpu->perf_lock, flags); |
| } |
| |
| void msm_gpu_perfcntr_stop(struct msm_gpu *gpu) |
| { |
| gpu->perfcntr_active = false; |
| } |
| |
| /* returns -errno or # of cntrs sampled */ |
| int msm_gpu_perfcntr_sample(struct msm_gpu *gpu, uint32_t *activetime, |
| uint32_t *totaltime, uint32_t ncntrs, uint32_t *cntrs) |
| { |
| unsigned long flags; |
| int ret; |
| |
| spin_lock_irqsave(&gpu->perf_lock, flags); |
| |
| if (!gpu->perfcntr_active) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| *activetime = gpu->activetime; |
| *totaltime = gpu->totaltime; |
| |
| gpu->activetime = gpu->totaltime = 0; |
| |
| ret = update_hw_cntrs(gpu, ncntrs, cntrs); |
| |
| out: |
| spin_unlock_irqrestore(&gpu->perf_lock, flags); |
| |
| return ret; |
| } |
| |
| /* |
| * Cmdstream submission/retirement: |
| */ |
| |
| static void retire_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit) |
| { |
| int i; |
| |
| for (i = 0; i < submit->nr_bos; i++) { |
| struct msm_gem_object *msm_obj = submit->bos[i].obj; |
| /* move to inactive: */ |
| msm_gem_move_to_inactive(&msm_obj->base); |
| msm_gem_put_iova(&msm_obj->base, gpu->id); |
| drm_gem_object_unreference(&msm_obj->base); |
| } |
| |
| msm_gem_submit_free(submit); |
| } |
| |
| static void retire_submits(struct msm_gpu *gpu) |
| { |
| struct drm_device *dev = gpu->dev; |
| |
| WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
| |
| while (!list_empty(&gpu->submit_list)) { |
| struct msm_gem_submit *submit; |
| |
| submit = list_first_entry(&gpu->submit_list, |
| struct msm_gem_submit, node); |
| |
| if (dma_fence_is_signaled(submit->fence)) { |
| retire_submit(gpu, submit); |
| } else { |
| break; |
| } |
| } |
| } |
| |
| static void retire_worker(struct work_struct *work) |
| { |
| struct msm_gpu *gpu = container_of(work, struct msm_gpu, retire_work); |
| struct drm_device *dev = gpu->dev; |
| uint32_t fence = gpu->funcs->last_fence(gpu); |
| |
| msm_update_fence(gpu->fctx, fence); |
| |
| mutex_lock(&dev->struct_mutex); |
| retire_submits(gpu); |
| mutex_unlock(&dev->struct_mutex); |
| |
| if (!msm_gpu_active(gpu)) |
| inactive_start(gpu); |
| } |
| |
| /* call from irq handler to schedule work to retire bo's */ |
| void msm_gpu_retire(struct msm_gpu *gpu) |
| { |
| struct msm_drm_private *priv = gpu->dev->dev_private; |
| queue_work(priv->wq, &gpu->retire_work); |
| update_sw_cntrs(gpu); |
| } |
| |
| /* add bo's to gpu's ring, and kick gpu: */ |
| void msm_gpu_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit, |
| struct msm_file_private *ctx) |
| { |
| struct drm_device *dev = gpu->dev; |
| struct msm_drm_private *priv = dev->dev_private; |
| int i; |
| |
| WARN_ON(!mutex_is_locked(&dev->struct_mutex)); |
| |
| inactive_cancel(gpu); |
| |
| list_add_tail(&submit->node, &gpu->submit_list); |
| |
| msm_rd_dump_submit(submit); |
| |
| update_sw_cntrs(gpu); |
| |
| for (i = 0; i < submit->nr_bos; i++) { |
| struct msm_gem_object *msm_obj = submit->bos[i].obj; |
| uint32_t iova; |
| |
| /* can't happen yet.. but when we add 2d support we'll have |
| * to deal w/ cross-ring synchronization: |
| */ |
| WARN_ON(is_active(msm_obj) && (msm_obj->gpu != gpu)); |
| |
| /* submit takes a reference to the bo and iova until retired: */ |
| drm_gem_object_reference(&msm_obj->base); |
| msm_gem_get_iova_locked(&msm_obj->base, |
| submit->gpu->id, &iova); |
| |
| if (submit->bos[i].flags & MSM_SUBMIT_BO_WRITE) |
| msm_gem_move_to_active(&msm_obj->base, gpu, true, submit->fence); |
| else if (submit->bos[i].flags & MSM_SUBMIT_BO_READ) |
| msm_gem_move_to_active(&msm_obj->base, gpu, false, submit->fence); |
| } |
| |
| gpu->funcs->submit(gpu, submit, ctx); |
| priv->lastctx = ctx; |
| |
| hangcheck_timer_reset(gpu); |
| } |
| |
| /* |
| * Init/Cleanup: |
| */ |
| |
| static irqreturn_t irq_handler(int irq, void *data) |
| { |
| struct msm_gpu *gpu = data; |
| return gpu->funcs->irq(gpu); |
| } |
| |
| static const char *clk_names[] = { |
| "src_clk", "core_clk", "iface_clk", "mem_clk", "mem_iface_clk", |
| "alt_mem_iface_clk", |
| }; |
| |
| int msm_gpu_init(struct drm_device *drm, struct platform_device *pdev, |
| struct msm_gpu *gpu, const struct msm_gpu_funcs *funcs, |
| const char *name, const char *ioname, const char *irqname, int ringsz) |
| { |
| struct iommu_domain *iommu; |
| int i, ret; |
| |
| if (WARN_ON(gpu->num_perfcntrs > ARRAY_SIZE(gpu->last_cntrs))) |
| gpu->num_perfcntrs = ARRAY_SIZE(gpu->last_cntrs); |
| |
| gpu->dev = drm; |
| gpu->funcs = funcs; |
| gpu->name = name; |
| gpu->inactive = true; |
| gpu->fctx = msm_fence_context_alloc(drm, name); |
| if (IS_ERR(gpu->fctx)) { |
| ret = PTR_ERR(gpu->fctx); |
| gpu->fctx = NULL; |
| goto fail; |
| } |
| |
| INIT_LIST_HEAD(&gpu->active_list); |
| INIT_WORK(&gpu->retire_work, retire_worker); |
| INIT_WORK(&gpu->inactive_work, inactive_worker); |
| INIT_WORK(&gpu->recover_work, recover_worker); |
| |
| INIT_LIST_HEAD(&gpu->submit_list); |
| |
| setup_timer(&gpu->inactive_timer, inactive_handler, |
| (unsigned long)gpu); |
| setup_timer(&gpu->hangcheck_timer, hangcheck_handler, |
| (unsigned long)gpu); |
| |
| spin_lock_init(&gpu->perf_lock); |
| |
| BUG_ON(ARRAY_SIZE(clk_names) != ARRAY_SIZE(gpu->grp_clks)); |
| |
| /* Map registers: */ |
| gpu->mmio = msm_ioremap(pdev, ioname, name); |
| if (IS_ERR(gpu->mmio)) { |
| ret = PTR_ERR(gpu->mmio); |
| goto fail; |
| } |
| |
| /* Get Interrupt: */ |
| gpu->irq = platform_get_irq_byname(pdev, irqname); |
| if (gpu->irq < 0) { |
| ret = gpu->irq; |
| dev_err(drm->dev, "failed to get irq: %d\n", ret); |
| goto fail; |
| } |
| |
| ret = devm_request_irq(&pdev->dev, gpu->irq, irq_handler, |
| IRQF_TRIGGER_HIGH, gpu->name, gpu); |
| if (ret) { |
| dev_err(drm->dev, "failed to request IRQ%u: %d\n", gpu->irq, ret); |
| goto fail; |
| } |
| |
| /* Acquire clocks: */ |
| for (i = 0; i < ARRAY_SIZE(clk_names); i++) { |
| gpu->grp_clks[i] = devm_clk_get(&pdev->dev, clk_names[i]); |
| DBG("grp_clks[%s]: %p", clk_names[i], gpu->grp_clks[i]); |
| if (IS_ERR(gpu->grp_clks[i])) |
| gpu->grp_clks[i] = NULL; |
| } |
| |
| gpu->ebi1_clk = devm_clk_get(&pdev->dev, "bus_clk"); |
| DBG("ebi1_clk: %p", gpu->ebi1_clk); |
| if (IS_ERR(gpu->ebi1_clk)) |
| gpu->ebi1_clk = NULL; |
| |
| /* Acquire regulators: */ |
| gpu->gpu_reg = devm_regulator_get(&pdev->dev, "vdd"); |
| DBG("gpu_reg: %p", gpu->gpu_reg); |
| if (IS_ERR(gpu->gpu_reg)) |
| gpu->gpu_reg = NULL; |
| |
| gpu->gpu_cx = devm_regulator_get(&pdev->dev, "vddcx"); |
| DBG("gpu_cx: %p", gpu->gpu_cx); |
| if (IS_ERR(gpu->gpu_cx)) |
| gpu->gpu_cx = NULL; |
| |
| /* Setup IOMMU.. eventually we will (I think) do this once per context |
| * and have separate page tables per context. For now, to keep things |
| * simple and to get something working, just use a single address space: |
| */ |
| iommu = iommu_domain_alloc(&platform_bus_type); |
| if (iommu) { |
| dev_info(drm->dev, "%s: using IOMMU\n", name); |
| gpu->mmu = msm_iommu_new(&pdev->dev, iommu); |
| if (IS_ERR(gpu->mmu)) { |
| ret = PTR_ERR(gpu->mmu); |
| dev_err(drm->dev, "failed to init iommu: %d\n", ret); |
| gpu->mmu = NULL; |
| iommu_domain_free(iommu); |
| goto fail; |
| } |
| |
| } else { |
| dev_info(drm->dev, "%s: no IOMMU, fallback to VRAM carveout!\n", name); |
| } |
| gpu->id = msm_register_mmu(drm, gpu->mmu); |
| |
| |
| /* Create ringbuffer: */ |
| mutex_lock(&drm->struct_mutex); |
| gpu->rb = msm_ringbuffer_new(gpu, ringsz); |
| mutex_unlock(&drm->struct_mutex); |
| if (IS_ERR(gpu->rb)) { |
| ret = PTR_ERR(gpu->rb); |
| gpu->rb = NULL; |
| dev_err(drm->dev, "could not create ringbuffer: %d\n", ret); |
| goto fail; |
| } |
| |
| bs_init(gpu); |
| |
| return 0; |
| |
| fail: |
| return ret; |
| } |
| |
| void msm_gpu_cleanup(struct msm_gpu *gpu) |
| { |
| DBG("%s", gpu->name); |
| |
| WARN_ON(!list_empty(&gpu->active_list)); |
| |
| bs_fini(gpu); |
| |
| if (gpu->rb) { |
| if (gpu->rb_iova) |
| msm_gem_put_iova(gpu->rb->bo, gpu->id); |
| msm_ringbuffer_destroy(gpu->rb); |
| } |
| |
| if (gpu->mmu) |
| gpu->mmu->funcs->destroy(gpu->mmu); |
| |
| if (gpu->fctx) |
| msm_fence_context_free(gpu->fctx); |
| } |