diff options
Diffstat (limited to 'drivers/gpu/drm/etnaviv')
| -rw-r--r-- | drivers/gpu/drm/etnaviv/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/Makefile | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c | 15 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.c | 43 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_drv.h | 6 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem.c | 25 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c | 69 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 217 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_gpu.h | 13 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu.c | 197 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu.h | 7 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c | 120 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 106 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_mmu.h | 36 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_perfmon.c | 495 | ||||
| -rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_perfmon.h | 49 |
18 files changed, 1114 insertions, 331 deletions
diff --git a/drivers/gpu/drm/etnaviv/Kconfig b/drivers/gpu/drm/etnaviv/Kconfig index 38b477b5fbf9..a29b8f59eb15 100644 --- a/drivers/gpu/drm/etnaviv/Kconfig +++ b/drivers/gpu/drm/etnaviv/Kconfig @@ -7,8 +7,6 @@ config DRM_ETNAVIV select SHMEM select SYNC_FILE select TMPFS - select IOMMU_API - select IOMMU_SUPPORT select WANT_DEV_COREDUMP select CMA if HAVE_DMA_CONTIGUOUS select DMA_CMA if HAVE_DMA_CONTIGUOUS diff --git a/drivers/gpu/drm/etnaviv/Makefile b/drivers/gpu/drm/etnaviv/Makefile index ab3f551831d7..1281c8d4fae5 100644 --- a/drivers/gpu/drm/etnaviv/Makefile +++ b/drivers/gpu/drm/etnaviv/Makefile @@ -11,6 +11,7 @@ etnaviv-y := \ etnaviv_gpu.o \ etnaviv_iommu_v2.o \ etnaviv_iommu.o \ - etnaviv_mmu.o + etnaviv_mmu.o \ + etnaviv_perfmon.o obj-$(CONFIG_DRM_ETNAVIV) += etnaviv.o diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c index ed9588f36bc9..9e7098e3207f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c @@ -250,6 +250,42 @@ void etnaviv_buffer_end(struct etnaviv_gpu *gpu) } } +/* Append a 'sync point' to the ring buffer. */ +void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event) +{ + struct etnaviv_cmdbuf *buffer = gpu->buffer; + unsigned int waitlink_offset = buffer->user_size - 16; + u32 dwords, target; + + /* + * We need at most 3 dwords in the return target: + * 1 event + 1 end + 1 wait + 1 link. + */ + dwords = 4; + target = etnaviv_buffer_reserve(gpu, buffer, dwords); + + /* Signal sync point event */ + CMD_LOAD_STATE(buffer, VIVS_GL_EVENT, VIVS_GL_EVENT_EVENT_ID(event) | + VIVS_GL_EVENT_FROM_PE); + + /* Stop the FE to 'pause' the GPU */ + CMD_END(buffer); + + /* Append waitlink */ + CMD_WAIT(buffer); + CMD_LINK(buffer, 2, etnaviv_cmdbuf_get_va(buffer) + + buffer->user_size - 4); + + /* + * Kick off the 'sync point' command by replacing the previous + * WAIT with a link to the address in the ring buffer. + */ + etnaviv_buffer_replace_wait(buffer, waitlink_offset, + VIV_FE_LINK_HEADER_OP_LINK | + VIV_FE_LINK_HEADER_PREFETCH(dwords), + target); +} + /* Append a command buffer to the ring buffer. */ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, struct etnaviv_cmdbuf *cmdbuf) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c index 633e0f07cbac..66ac79558bbd 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c @@ -19,6 +19,7 @@ #include "etnaviv_cmdbuf.h" #include "etnaviv_gpu.h" #include "etnaviv_mmu.h" +#include "etnaviv_perfmon.h" #define SUBALLOC_SIZE SZ_256K #define SUBALLOC_GRANULE SZ_4K @@ -87,9 +88,10 @@ void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc) struct etnaviv_cmdbuf * etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size, - size_t nr_bos) + size_t nr_bos, size_t nr_pmrs) { struct etnaviv_cmdbuf *cmdbuf; + struct etnaviv_perfmon_request *pmrs; size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]), sizeof(*cmdbuf)); int granule_offs, order, ret; @@ -98,6 +100,12 @@ etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size, if (!cmdbuf) return NULL; + sz = sizeof(*pmrs) * nr_pmrs; + pmrs = kzalloc(sz, GFP_KERNEL); + if (!pmrs) + goto out_free_cmdbuf; + + cmdbuf->pmrs = pmrs; cmdbuf->suballoc = suballoc; cmdbuf->size = size; @@ -124,6 +132,10 @@ retry: cmdbuf->vaddr = suballoc->vaddr + cmdbuf->suballoc_offset; return cmdbuf; + +out_free_cmdbuf: + kfree(cmdbuf); + return NULL; } void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf) @@ -139,6 +151,7 @@ void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf) suballoc->free_space = 1; mutex_unlock(&suballoc->lock); wake_up_all(&suballoc->free_event); + kfree(cmdbuf->pmrs); kfree(cmdbuf); } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h index 80d78076c679..b6348b9f2a9d 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h @@ -21,6 +21,7 @@ struct etnaviv_gpu; struct etnaviv_cmdbuf_suballoc; +struct etnaviv_perfmon_request; struct etnaviv_cmdbuf { /* suballocator this cmdbuf is allocated from */ @@ -38,6 +39,9 @@ struct etnaviv_cmdbuf { u32 exec_state; /* per GPU in-flight list */ struct list_head node; + /* perfmon requests */ + unsigned int nr_pmrs; + struct etnaviv_perfmon_request *pmrs; /* BOs attached to this command buffer */ unsigned int nr_bos; struct etnaviv_vram_mapping *bo_map[0]; @@ -49,7 +53,7 @@ void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc); struct etnaviv_cmdbuf * etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size, - size_t nr_bos); + size_t nr_bos, size_t nr_pmrs); void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf); u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c index 2cb4773823c2..491eddf9b150 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c @@ -23,6 +23,7 @@ #include "etnaviv_gpu.h" #include "etnaviv_gem.h" #include "etnaviv_mmu.h" +#include "etnaviv_perfmon.h" #ifdef CONFIG_DRM_ETNAVIV_REGISTER_LOGGING static bool reglog; @@ -451,6 +452,46 @@ static int etnaviv_ioctl_gem_wait(struct drm_device *dev, void *data, return ret; } +static int etnaviv_ioctl_pm_query_dom(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct etnaviv_drm_private *priv = dev->dev_private; + struct drm_etnaviv_pm_domain *args = data; + struct etnaviv_gpu *gpu; + + /* reject as long as the feature isn't stable */ + return -EINVAL; + + if (args->pipe >= ETNA_MAX_PIPES) + return -EINVAL; + + gpu = priv->gpu[args->pipe]; + if (!gpu) + return -ENXIO; + + return etnaviv_pm_query_dom(gpu, args); +} + +static int etnaviv_ioctl_pm_query_sig(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct etnaviv_drm_private *priv = dev->dev_private; + struct drm_etnaviv_pm_signal *args = data; + struct etnaviv_gpu *gpu; + + /* reject as long as the feature isn't stable */ + return -EINVAL; + + if (args->pipe >= ETNA_MAX_PIPES) + return -EINVAL; + + gpu = priv->gpu[args->pipe]; + if (!gpu) + return -ENXIO; + + return etnaviv_pm_query_sig(gpu, args); +} + static const struct drm_ioctl_desc etnaviv_ioctls[] = { #define ETNA_IOCTL(n, func, flags) \ DRM_IOCTL_DEF_DRV(ETNAVIV_##n, etnaviv_ioctl_##func, flags) @@ -463,6 +504,8 @@ static const struct drm_ioctl_desc etnaviv_ioctls[] = { ETNA_IOCTL(WAIT_FENCE, wait_fence, DRM_AUTH|DRM_RENDER_ALLOW), ETNA_IOCTL(GEM_USERPTR, gem_userptr, DRM_AUTH|DRM_RENDER_ALLOW), ETNA_IOCTL(GEM_WAIT, gem_wait, DRM_AUTH|DRM_RENDER_ALLOW), + ETNA_IOCTL(PM_QUERY_DOM, pm_query_dom, DRM_AUTH|DRM_RENDER_ALLOW), + ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_AUTH|DRM_RENDER_ALLOW), }; static const struct vm_operations_struct vm_ops = { diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h index 058389f93b69..d249acb6da08 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h @@ -26,7 +26,6 @@ #include <linux/pm_runtime.h> #include <linux/slab.h> #include <linux/list.h> -#include <linux/iommu.h> #include <linux/types.h> #include <linux/sizes.h> @@ -92,15 +91,12 @@ int etnaviv_gem_cpu_fini(struct drm_gem_object *obj); void etnaviv_gem_free_object(struct drm_gem_object *obj); int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, u32 size, u32 flags, u32 *handle); -struct drm_gem_object *etnaviv_gem_new_locked(struct drm_device *dev, - u32 size, u32 flags); -struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev, - u32 size, u32 flags); int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file, uintptr_t ptr, u32 size, u32 flags, u32 *handle); u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu); u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr); void etnaviv_buffer_end(struct etnaviv_gpu *gpu); +void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event); void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, unsigned int event, struct etnaviv_cmdbuf *cmdbuf); void etnaviv_validate_init(void); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem.c b/drivers/gpu/drm/etnaviv/etnaviv_gem.c index 57881167ccd2..daee3f1196df 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem.c @@ -704,25 +704,6 @@ int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file, return ret; } -struct drm_gem_object *etnaviv_gem_new(struct drm_device *dev, - u32 size, u32 flags) -{ - struct drm_gem_object *obj; - int ret; - - obj = __etnaviv_gem_new(dev, size, flags); - if (IS_ERR(obj)) - return obj; - - ret = etnaviv_gem_obj_add(dev, obj); - if (ret < 0) { - drm_gem_object_put_unlocked(obj); - return ERR_PTR(ret); - } - - return obj; -} - int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags, struct reservation_object *robj, const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res) @@ -779,7 +760,7 @@ static struct page **etnaviv_gem_userptr_do_get_pages( up_read(&mm->mmap_sem); if (ret < 0) { - release_pages(pvec, pinned, 0); + release_pages(pvec, pinned); kvfree(pvec); return ERR_PTR(ret); } @@ -852,7 +833,7 @@ static int etnaviv_gem_userptr_get_pages(struct etnaviv_gem_object *etnaviv_obj) } } - release_pages(pvec, pinned, 0); + release_pages(pvec, pinned); kvfree(pvec); work = kmalloc(sizeof(*work), GFP_KERNEL); @@ -886,7 +867,7 @@ static void etnaviv_gem_userptr_release(struct etnaviv_gem_object *etnaviv_obj) if (etnaviv_obj->pages) { int npages = etnaviv_obj->base.size >> PAGE_SHIFT; - release_pages(etnaviv_obj->pages, npages, 0); + release_pages(etnaviv_obj->pages, npages); kvfree(etnaviv_obj->pages); } put_task_struct(etnaviv_obj->userptr.task); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c index 46dfe0737f43..ff911541a190 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_submit.c @@ -21,6 +21,7 @@ #include "etnaviv_drv.h" #include "etnaviv_gpu.h" #include "etnaviv_gem.h" +#include "etnaviv_perfmon.h" /* * Cmdstream submission: @@ -283,6 +284,54 @@ static int submit_reloc(struct etnaviv_gem_submit *submit, void *stream, return 0; } +static int submit_perfmon_validate(struct etnaviv_gem_submit *submit, + struct etnaviv_cmdbuf *cmdbuf, + const struct drm_etnaviv_gem_submit_pmr *pmrs, + u32 nr_pms) +{ + u32 i; + + for (i = 0; i < nr_pms; i++) { + const struct drm_etnaviv_gem_submit_pmr *r = pmrs + i; + struct etnaviv_gem_submit_bo *bo; + int ret; + + ret = submit_bo(submit, r->read_idx, &bo); + if (ret) + return ret; + + /* at offset 0 a sequence number gets stored used for userspace sync */ + if (r->read_offset == 0) { + DRM_ERROR("perfmon request: offset is 0"); + return -EINVAL; + } + + if (r->read_offset >= bo->obj->base.size - sizeof(u32)) { + DRM_ERROR("perfmon request: offset %u outside object", i); + return -EINVAL; + } + + if (r->flags & ~(ETNA_PM_PROCESS_PRE | ETNA_PM_PROCESS_POST)) { + DRM_ERROR("perfmon request: flags are not valid"); + return -EINVAL; + } + + if (etnaviv_pm_req_validate(r, cmdbuf->exec_state)) { + DRM_ERROR("perfmon request: domain or signal not valid"); + return -EINVAL; + } + + cmdbuf->pmrs[i].flags = r->flags; + cmdbuf->pmrs[i].domain = r->domain; + cmdbuf->pmrs[i].signal = r->signal; + cmdbuf->pmrs[i].sequence = r->sequence; + cmdbuf->pmrs[i].offset = r->read_offset; + cmdbuf->pmrs[i].bo_vma = etnaviv_gem_vmap(&bo->obj->base); + } + + return 0; +} + static void submit_cleanup(struct etnaviv_gem_submit *submit) { unsigned i; @@ -306,6 +355,7 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, struct etnaviv_drm_private *priv = dev->dev_private; struct drm_etnaviv_gem_submit *args = data; struct drm_etnaviv_gem_submit_reloc *relocs; + struct drm_etnaviv_gem_submit_pmr *pmrs; struct drm_etnaviv_gem_submit_bo *bos; struct etnaviv_gem_submit *submit; struct etnaviv_cmdbuf *cmdbuf; @@ -347,11 +397,12 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, */ bos = kvmalloc_array(args->nr_bos, sizeof(*bos), GFP_KERNEL); relocs = kvmalloc_array(args->nr_relocs, sizeof(*relocs), GFP_KERNEL); + pmrs = kvmalloc_array(args->nr_pmrs, sizeof(*pmrs), GFP_KERNEL); stream = kvmalloc_array(1, args->stream_size, GFP_KERNEL); cmdbuf = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, ALIGN(args->stream_size, 8) + 8, - args->nr_bos); - if (!bos || !relocs || !stream || !cmdbuf) { + args->nr_bos, args->nr_pmrs); + if (!bos || !relocs || !pmrs || !stream || !cmdbuf) { ret = -ENOMEM; goto err_submit_cmds; } @@ -373,6 +424,14 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, goto err_submit_cmds; } + ret = copy_from_user(pmrs, u64_to_user_ptr(args->pmrs), + args->nr_pmrs * sizeof(*pmrs)); + if (ret) { + ret = -EFAULT; + goto err_submit_cmds; + } + cmdbuf->nr_pmrs = args->nr_pmrs; + ret = copy_from_user(stream, u64_to_user_ptr(args->stream), args->stream_size); if (ret) { @@ -441,6 +500,10 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data, if (ret) goto out; + ret = submit_perfmon_validate(submit, cmdbuf, pmrs, args->nr_pmrs); + if (ret) + goto out; + memcpy(cmdbuf->vaddr, stream, args->stream_size); cmdbuf->user_size = ALIGN(args->stream_size, 8); @@ -496,6 +559,8 @@ err_submit_cmds: kvfree(bos); if (relocs) kvfree(relocs); + if (pmrs) + kvfree(pmrs); return ret; } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c index 4b152e0d31a6..e19cbe05da2a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c @@ -25,6 +25,7 @@ #include "etnaviv_gpu.h" #include "etnaviv_gem.h" #include "etnaviv_mmu.h" +#include "etnaviv_perfmon.h" #include "common.xml.h" #include "state.xml.h" #include "state_hi.xml.h" @@ -420,9 +421,10 @@ static void etnaviv_gpu_update_clock(struct etnaviv_gpu *gpu) gpu->base_rate_shader >> gpu->freq_scale); } else { unsigned int fscale = 1 << (6 - gpu->freq_scale); - u32 clock = VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS | - VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); + u32 clock = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + clock &= ~VIVS_HI_CLOCK_CONTROL_FSCALE_VAL__MASK; + clock |= VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); etnaviv_gpu_load_clock(gpu, clock); } } @@ -433,24 +435,14 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) unsigned long timeout; bool failed = true; - /* TODO - * - * - clock gating - * - puls eater - * - what about VG? - */ - /* We hope that the GPU resets in under one second */ timeout = jiffies + msecs_to_jiffies(1000); while (time_is_after_jiffies(timeout)) { /* enable clock */ - etnaviv_gpu_update_clock(gpu); - - control = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); - - /* Wait for stable clock. Vivante's code waited for 1ms */ - usleep_range(1000, 10000); + unsigned int fscale = 1 << (6 - gpu->freq_scale); + control = VIVS_HI_CLOCK_CONTROL_FSCALE_VAL(fscale); + etnaviv_gpu_load_clock(gpu, control); /* isolate the GPU. */ control |= VIVS_HI_CLOCK_CONTROL_ISOLATE_GPU; @@ -461,7 +453,7 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, control); /* wait for reset. */ - msleep(1); + usleep_range(10, 20); /* reset soft reset bit. */ control &= ~VIVS_HI_CLOCK_CONTROL_SOFT_RESET; @@ -490,6 +482,10 @@ static int etnaviv_hw_reset(struct etnaviv_gpu *gpu) continue; } + /* disable debug registers, as they are not normally needed */ + control |= VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS; + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, control); + failed = false; break; } @@ -721,7 +717,7 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) } /* Create buffer: */ - gpu->buffer = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, PAGE_SIZE, 0); + gpu->buffer = etnaviv_cmdbuf_new(gpu->cmdbuf_suballoc, PAGE_SIZE, 0, 0); if (!gpu->buffer) { ret = -ENOMEM; dev_err(gpu->dev, "could not create command buffer\n"); @@ -739,10 +735,9 @@ int etnaviv_gpu_init(struct etnaviv_gpu *gpu) /* Setup event management */ spin_lock_init(&gpu->event_spinlock); init_completion(&gpu->event_free); - for (i = 0; i < ARRAY_SIZE(gpu->event); i++) { - gpu->event[i].used = false; + bitmap_zero(gpu->event_bitmap, ETNA_NR_EVENTS); + for (i = 0; i < ARRAY_SIZE(gpu->event); i++) complete(&gpu->event_free); - } /* Now program the hardware */ mutex_lock(&gpu->lock); @@ -926,7 +921,7 @@ static void recover_worker(struct work_struct *work) struct etnaviv_gpu *gpu = container_of(work, struct etnaviv_gpu, recover_work); unsigned long flags; - unsigned int i; + unsigned int i = 0; dev_err(gpu->dev, "hangcheck recover!\n"); @@ -945,14 +940,12 @@ static void recover_worker(struct work_struct *work) /* complete all events, the GPU won't do it after the reset */ spin_lock_irqsave(&gpu->event_spinlock, flags); - for (i = 0; i < ARRAY_SIZE(gpu->event); i++) { - if (!gpu->event[i].used) - continue; + for_each_set_bit_from(i, gpu->event_bitmap, ETNA_NR_EVENTS) { dma_fence_signal(gpu->event[i].fence); gpu->event[i].fence = NULL; - gpu->event[i].used = false; complete(&gpu->event_free); } + bitmap_zero(gpu->event_bitmap, ETNA_NR_EVENTS); spin_unlock_irqrestore(&gpu->event_spinlock, flags); gpu->completed_fence = gpu->active_fence; @@ -1140,30 +1133,45 @@ int etnaviv_gpu_fence_sync_obj(struct etnaviv_gem_object *etnaviv_obj, * event management: */ -static unsigned int event_alloc(struct etnaviv_gpu *gpu) +static int event_alloc(struct etnaviv_gpu *gpu, unsigned nr_events, + unsigned int *events) { - unsigned long ret, flags; - unsigned int i, event = ~0U; + unsigned long flags, timeout = msecs_to_jiffies(10 * 10000); + unsigned i, acquired = 0; - ret = wait_for_completion_timeout(&gpu->event_free, - msecs_to_jiffies(10 * 10000)); - if (!ret) - dev_err(gpu->dev, "wait_for_completion_timeout failed"); + for (i = 0; i < nr_events; i++) { + unsigned long ret; - spin_lock_irqsave(&gpu->event_spinlock, flags); + ret = wait_for_completion_timeout(&gpu->event_free, timeout); - /* find first free event */ - for (i = 0; i < ARRAY_SIZE(gpu->event); i++) { - if (gpu->event[i].used == false) { - gpu->event[i].used = true; - event = i; - break; + if (!ret) { + dev_err(gpu->dev, "wait_for_completion_timeout failed"); + goto out; } + + acquired++; + timeout = ret; + } + + spin_lock_irqsave(&gpu->event_spinlock, flags); + + for (i = 0; i < nr_events; i++) { + int event = find_first_zero_bit(gpu->event_bitmap, ETNA_NR_EVENTS); + + events[i] = event; + memset(&gpu->event[event], 0, sizeof(struct etnaviv_event)); + set_bit(event, gpu->event_bitmap); } spin_unlock_irqrestore(&gpu->event_spinlock, flags); - return event; + return 0; + +out: + for (i = 0; i < acquired; i++) + complete(&gpu->event_free); + + return -EBUSY; } static void event_free(struct etnaviv_gpu *gpu, unsigned int event) @@ -1172,12 +1180,12 @@ static void event_free(struct etnaviv_gpu *gpu, unsigned int event) spin_lock_irqsave(&gpu->event_spinlock, flags); - if (gpu->event[event].used == false) { + if (!test_bit(event, gpu->event_bitmap)) { dev_warn(gpu->dev, "event %u is already marked as free", event); spin_unlock_irqrestore(&gpu->event_spinlock, flags); } else { - gpu->event[event].used = false; + clear_bit(event, gpu->event_bitmap); spin_unlock_irqrestore(&gpu->event_spinlock, flags); complete(&gpu->event_free); @@ -1311,12 +1319,71 @@ void etnaviv_gpu_pm_put(struct etnaviv_gpu *gpu) pm_runtime_put_autosuspend(gpu->dev); } +static void sync_point_perfmon_sample(struct etnaviv_gpu *gpu, + struct etnaviv_event *event, unsigned int flags) +{ + const struct etnaviv_cmdbuf *cmdbuf = event->cmdbuf; + unsigned int i; + + for (i = 0; i < cmdbuf->nr_pmrs; i++) { + const struct etnaviv_perfmon_request *pmr = cmdbuf->pmrs + i; + + if (pmr->flags == flags) + etnaviv_perfmon_process(gpu, pmr); + } +} + +static void sync_point_perfmon_sample_pre(struct etnaviv_gpu *gpu, + struct etnaviv_event *event) +{ + u32 val; + + /* disable clock gating */ + val = gpu_read(gpu, VIVS_PM_POWER_CONTROLS); + val &= ~VIVS_PM_POWER_CONTROLS_ENABLE_MODULE_CLOCK_GATING; + gpu_write(gpu, VIVS_PM_POWER_CONTROLS, val); + + /* enable debug register */ + val = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + val &= ~VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS; + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, val); + + sync_point_perfmon_sample(gpu, event, ETNA_PM_PROCESS_PRE); +} + +static void sync_point_perfmon_sample_post(struct etnaviv_gpu *gpu, + struct etnaviv_event *event) +{ + const struct etnaviv_cmdbuf *cmdbuf = event->cmdbuf; + unsigned int i; + u32 val; + + sync_point_perfmon_sample(gpu, event, ETNA_PM_PROCESS_POST); + + for (i = 0; i < cmdbuf->nr_pmrs; i++) { + const struct etnaviv_perfmon_request *pmr = cmdbuf->pmrs + i; + + *pmr->bo_vma = pmr->sequence; + } + + /* disable debug register */ + val = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + val |= VIVS_HI_CLOCK_CONTROL_DISABLE_DEBUG_REGISTERS; + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, val); + + /* enable clock gating */ + val = gpu_read(gpu, VIVS_PM_POWER_CONTROLS); + val |= VIVS_PM_POWER_CONTROLS_ENABLE_MODULE_CLOCK_GATING; + gpu_write(gpu, VIVS_PM_POWER_CONTROLS, val); +} + + /* add bo's to gpu's ring, and kick gpu: */ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, struct etnaviv_gem_submit *submit, struct etnaviv_cmdbuf *cmdbuf) { struct dma_fence *fence; - unsigned int event, i; + unsigned int i, nr_events = 1, event[3]; int ret; ret = etnaviv_gpu_pm_get_sync(gpu); @@ -1332,10 +1399,19 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, * */ - event = event_alloc(gpu); - if (unlikely(event == ~0U)) { - DRM_ERROR("no free event\n"); - ret = -EBUSY; + /* + * if there are performance monitor requests we need to have + * - a sync point to re-configure gpu and process ETNA_PM_PROCESS_PRE + * requests. + * - a sync point to re-configure gpu, process ETNA_PM_PROCESS_POST requests + * and update the sequence number for userspace. + */ + if (cmdbuf->nr_pmrs) + nr_events = 3; + + ret = event_alloc(gpu, nr_events, event); + if (ret) { + DRM_ERROR("no free events\n"); goto out_pm_put; } @@ -1343,12 +1419,14 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, fence = etnaviv_gpu_fence_alloc(gpu); if (!fence) { - event_free(gpu, event); + for (i = 0; i < nr_events; i++) + event_free(gpu, event[i]); + ret = -ENOMEM; goto out_unlock; } - gpu->event[event].fence = fence; + gpu->event[event[0]].fence = fence; submit->fence = dma_fence_get(fence); gpu->active_fence = submit->fence->seqno; @@ -1358,7 +1436,19 @@ int etnaviv_gpu_submit(struct etnaviv_gpu *gpu, gpu->lastctx = cmdbuf->ctx; } - etnaviv_buffer_queue(gpu, event, cmdbuf); + if (cmdbuf->nr_pmrs) { + gpu->event[event[1]].sync_point = &sync_point_perfmon_sample_pre; + gpu->event[event[1]].cmdbuf = cmdbuf; + etnaviv_sync_point_queue(gpu, event[1]); + } + + etnaviv_buffer_queue(gpu, event[0], cmdbuf); + + if (cmdbuf->nr_pmrs) { + gpu->event[event[2]].sync_point = &sync_point_perfmon_sample_post; + gpu->event[event[2]].cmdbuf = cmdbuf; + etnaviv_sync_point_queue(gpu, event[2]); + } cmdbuf->fence = fence; list_add_tail(&cmdbuf->node, &gpu->active_cmd_list); @@ -1394,6 +1484,24 @@ out_pm_put: return ret; } +static void etnaviv_process_sync_point(struct etnaviv_gpu *gpu, + struct etnaviv_event *event) +{ + u32 addr = gpu_read(gpu, VIVS_FE_DMA_ADDRESS); + + event->sync_point(gpu, event); + etnaviv_gpu_start_fe(gpu, addr + 2, 2); +} + +static void sync_point_worker(struct work_struct *work) +{ + struct etnaviv_gpu *gpu = container_of(work, struct etnaviv_gpu, + sync_point_work); + + etnaviv_process_sync_point(gpu, &gpu->event[gpu->sync_point_event]); + event_free(gpu, gpu->sync_point_event); +} + /* * Init/Cleanup: */ @@ -1440,7 +1548,15 @@ static irqreturn_t irq_handler(int irq, void *data) dev_dbg(gpu->dev, "event %u\n", event); + if (gpu->event[event].sync_point) { + gpu->sync_point_event = event; + etnaviv_queue_work(gpu->drm, &gpu->sync_point_work); + } + fence = gpu->event[event].fence; + if (!fence) + continue; + gpu->event[event].fence = NULL; dma_fence_signal(fence); @@ -1645,6 +1761,7 @@ static int etnaviv_gpu_bind(struct device *dev, struct device *master, INIT_LIST_HEAD(&gpu->active_cmd_list); INIT_WORK(&gpu->retire_work, retire_worker); + INIT_WORK(&gpu->sync_point_work, sync_point_worker); INIT_WORK(&gpu->recover_work, recover_worker); init_waitqueue_head(&gpu->fence_event); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h index 689cb8f3680c..4f10f147297a 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.h @@ -88,13 +88,17 @@ struct etnaviv_chip_identity { }; struct etnaviv_event { - bool used; struct dma_fence *fence; + struct etnaviv_cmdbuf *cmdbuf; + + void (*sync_point)(struct etnaviv_gpu *gpu, struct etnaviv_event *event); }; struct etnaviv_cmdbuf_suballoc; struct etnaviv_cmdbuf; +#define ETNA_NR_EVENTS 30 + struct etnaviv_gpu { struct drm_device *drm; struct thermal_cooling_device *cooling; @@ -112,7 +116,8 @@ struct etnaviv_gpu { u32 memory_base; /* event management: */ - struct etnaviv_event event[30]; + DECLARE_BITMAP(event_bitmap, ETNA_NR_EVENTS); + struct etnaviv_event event[ETNA_NR_EVENTS]; struct completion event_free; spinlock_t event_spinlock; @@ -133,6 +138,10 @@ struct etnaviv_gpu { /* worker for handling active-list retiring: */ struct work_struct retire_work; + /* worker for handling 'sync' points: */ + struct work_struct sync_point_work; + int sync_point_event; + void __iomem *mmio; int irq; diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c index 7a7c97f599d7..14e24ac6573f 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.c @@ -14,7 +14,6 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/iommu.h> #include <linux/platform_device.h> #include <linux/sizes.h> #include <linux/slab.h> @@ -31,174 +30,115 @@ #define GPU_MEM_START 0x80000000 -struct etnaviv_iommu_domain_pgtable { - u32 *pgtable; - dma_addr_t paddr; +struct etnaviv_iommuv1_domain { + struct etnaviv_iommu_domain base; + u32 *pgtable_cpu; + dma_addr_t pgtable_dma; }; -struct etnaviv_iommu_domain { - struct iommu_domain domain; - struct device *dev; - void *bad_page_cpu; - dma_addr_t bad_page_dma; - struct etnaviv_iommu_domain_pgtable pgtable; - spinlock_t map_lock; -}; - -static struct etnaviv_iommu_domain *to_etnaviv_domain(struct iommu_domain *domain) -{ - return container_of(domain, struct etnaviv_iommu_domain, domain); -} - -static int pgtable_alloc(struct etnaviv_iommu_domain_pgtable *pgtable, - size_t size) -{ - pgtable->pgtable = dma_alloc_coherent(NULL, size, &pgtable->paddr, GFP_KERNEL); - if (!pgtable->pgtable) - return -ENOMEM; - - return 0; -} - -static void pgtable_free(struct etnaviv_iommu_domain_pgtable *pgtable, - size_t size) +static struct etnaviv_iommuv1_domain * +to_etnaviv_domain(struct etnaviv_iommu_domain *domain) { - dma_free_coherent(NULL, size, pgtable->pgtable, pgtable->paddr); -} - -static u32 pgtable_read(struct etnaviv_iommu_domain_pgtable *pgtable, - unsigned long iova) -{ - /* calcuate index into page table */ - unsigned int index = (iova - GPU_MEM_START) / SZ_4K; - phys_addr_t paddr; - - paddr = pgtable->pgtable[index]; - - return paddr; + return container_of(domain, struct etnaviv_iommuv1_domain, base); } -static void pgtable_write(struct etnaviv_iommu_domain_pgtable *pgtable, - unsigned long iova, phys_addr_t paddr) -{ - /* calcuate index into page table */ - unsigned int index = (iova - GPU_MEM_START) / SZ_4K; - - pgtable->pgtable[index] = paddr; -} - -static int __etnaviv_iommu_init(struct etnaviv_iommu_domain *etnaviv_domain) +static int __etnaviv_iommu_init(struct etnaviv_iommuv1_domain *etnaviv_domain) { u32 *p; - int ret, i; - - etnaviv_domain->bad_page_cpu = dma_alloc_coherent(etnaviv_domain->dev, - SZ_4K, - &etnaviv_domain->bad_page_dma, - GFP_KERNEL); - if (!etnaviv_domain->bad_page_cpu) + int i; + + etnaviv_domain->base.bad_page_cpu = dma_alloc_coherent( + etnaviv_domain->base.dev, + SZ_4K, + &etnaviv_domain->base.bad_page_dma, + GFP_KERNEL); + if (!etnaviv_domain->base.bad_page_cpu) return -ENOMEM; - p = etnaviv_domain->bad_page_cpu; + p = etnaviv_domain->base.bad_page_cpu; for (i = 0; i < SZ_4K / 4; i++) *p++ = 0xdead55aa; - ret = pgtable_alloc(&etnaviv_domain->pgtable, PT_SIZE); - if (ret < 0) { - dma_free_coherent(etnaviv_domain->dev, SZ_4K, - etnaviv_domain->bad_page_cpu, - etnaviv_domain->bad_page_dma); - return ret; + etnaviv_domain->pgtable_cpu = + dma_alloc_coherent(etnaviv_domain->base.dev, PT_SIZE, + &etnaviv_domain->pgtable_dma, + GFP_KERNEL); + if (!etnaviv_domain->pgtable_cpu) { + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, + etnaviv_domain->base.bad_page_cpu, + etnaviv_domain->base.bad_page_dma); + return -ENOMEM; } for (i = 0; i < PT_ENTRIES; i++) - etnaviv_domain->pgtable.pgtable[i] = - etnaviv_domain->bad_page_dma; - - spin_lock_init(&etnaviv_domain->map_lock); + etnaviv_domain->pgtable_cpu[i] = + etnaviv_domain->base.bad_page_dma; return 0; } -static void etnaviv_domain_free(struct iommu_domain *domain) +static void etnaviv_iommuv1_domain_free(struct etnaviv_iommu_domain *domain) { - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); + struct etnaviv_iommuv1_domain *etnaviv_domain = + to_etnaviv_domain(domain); - pgtable_free(&etnaviv_domain->pgtable, PT_SIZE); + dma_free_coherent(etnaviv_domain->base.dev, PT_SIZE, + etnaviv_domain->pgtable_cpu, + etnaviv_domain->pgtable_dma); - dma_free_coherent(etnaviv_domain->dev, SZ_4K, - etnaviv_domain->bad_page_cpu, - etnaviv_domain->bad_page_dma); + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, + etnaviv_domain->base.bad_page_cpu, + etnaviv_domain->base.bad_page_dma); kfree(etnaviv_domain); } -static int etnaviv_iommuv1_map(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot) +static int etnaviv_iommuv1_map(struct etnaviv_iommu_domain *domain, + unsigned long iova, phys_addr_t paddr, + size_t size, int prot) { - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); + struct etnaviv_iommuv1_domain *etnaviv_domain = to_etnaviv_domain(domain); + unsigned int index = (iova - GPU_MEM_START) / SZ_4K; if (size != SZ_4K) return -EINVAL; - spin_lock(&etnaviv_domain->map_lock); - pgtable_write(&etnaviv_domain->pgtable, iova, paddr); - spin_unlock(&etnaviv_domain->map_lock); + etnaviv_domain->pgtable_cpu[index] = paddr; return 0; } -static size_t etnaviv_iommuv1_unmap(struct iommu_domain *domain, +static size_t etnaviv_iommuv1_unmap(struct etnaviv_iommu_domain *domain, unsigned long iova, size_t size) { - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); + struct etnaviv_iommuv1_domain *etnaviv_domain = + to_etnaviv_domain(domain); + unsigned int index = (iova - GPU_MEM_START) / SZ_4K; if (size != SZ_4K) return -EINVAL; - spin_lock(&etnaviv_domain->map_lock); - pgtable_write(&etnaviv_domain->pgtable, iova, - etnaviv_domain->bad_page_dma); - spin_unlock(&etnaviv_domain->map_lock); + etnaviv_domain->pgtable_cpu[index] = etnaviv_domain->base.bad_page_dma; return SZ_4K; } -static phys_addr_t etnaviv_iommu_iova_to_phys(struct iommu_domain *domain, - dma_addr_t iova) -{ - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); - - return pgtable_read(&etnaviv_domain->pgtable, iova); -} - -static size_t etnaviv_iommuv1_dump_size(struct iommu_domain *domain) +static size_t etnaviv_iommuv1_dump_size(struct etnaviv_iommu_domain *domain) { return PT_SIZE; } -static void etnaviv_iommuv1_dump(struct iommu_domain *domain, void *buf) +static void etnaviv_iommuv1_dump(struct etnaviv_iommu_domain *domain, void *buf) { - struct etnaviv_iommu_domain *etnaviv_domain = to_etnaviv_domain(domain); + struct etnaviv_iommuv1_domain *etnaviv_domain = + to_etnaviv_domain(domain); - memcpy(buf, etnaviv_domain->pgtable.pgtable, PT_SIZE); + memcpy(buf, etnaviv_domain->pgtable_cpu, PT_SIZE); } -static const struct etnaviv_iommu_ops etnaviv_iommu_ops = { - .ops = { - .domain_free = etnaviv_domain_free, - .map = etnaviv_iommuv1_map, - .unmap = etnaviv_iommuv1_unmap, - .iova_to_phys = etnaviv_iommu_iova_to_phys, - .pgsize_bitmap = SZ_4K, - }, - .dump_size = etnaviv_iommuv1_dump_size, - .dump = etnaviv_iommuv1_dump, -}; - void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu) { - struct etnaviv_iommu_domain *etnaviv_domain = + struct etnaviv_iommuv1_domain *etnaviv_domain = to_etnaviv_domain(gpu->mmu->domain); u32 pgtable; @@ -210,7 +150,7 @@ void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu) gpu_write(gpu, VIVS_MC_MEMORY_BASE_ADDR_PE, gpu->memory_base); /* set page table address in MC */ - pgtable = (u32)etnaviv_domain->pgtable.paddr; + pgtable = (u32)etnaviv_domain->pgtable_dma; gpu_write(gpu, VIVS_MC_MMU_FE_PAGE_TABLE, pgtable); gpu_write(gpu, VIVS_MC_MMU_TX_PAGE_TABLE, pgtable); @@ -219,28 +159,37 @@ void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu) gpu_write(gpu, VIVS_MC_MMU_RA_PAGE_TABLE, pgtable); } -struct iommu_domain *etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu) +const struct etnaviv_iommu_domain_ops etnaviv_iommuv1_ops = { + .free = etnaviv_iommuv1_domain_free, + .map = etnaviv_iommuv1_map, + .unmap = etnaviv_iommuv1_unmap, + .dump_size = etnaviv_iommuv1_dump_size, + .dump = etnaviv_iommuv1_dump, +}; + +struct etnaviv_iommu_domain * +etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu) { - struct etnaviv_iommu_domain *etnaviv_domain; + struct etnaviv_iommuv1_domain *etnaviv_domain; + struct etnaviv_iommu_domain *domain; int ret; etnaviv_domain = kzalloc(sizeof(*etnaviv_domain), GFP_KERNEL); if (!etnaviv_domain) return NULL; - etnaviv_domain->dev = gpu->dev; + domain = &etnaviv_domain->base; - etnaviv_domain->domain.type = __IOMMU_DOMAIN_PAGING; - etnaviv_domain->domain.ops = &etnaviv_iommu_ops.ops; - etnaviv_domain->domain.pgsize_bitmap = SZ_4K; - etnaviv_domain->domain.geometry.aperture_start = GPU_MEM_START; - etnaviv_domain->domain.geometry.aperture_end = GPU_MEM_START + PT_ENTRIES * SZ_4K - 1; + domain->dev = gpu->dev; + domain->base = GPU_MEM_START; + domain->size = PT_ENTRIES * SZ_4K; + domain->ops = &etnaviv_iommuv1_ops; ret = __etnaviv_iommu_init(etnaviv_domain); if (ret) goto out_free; - return &etnaviv_domain->domain; + return &etnaviv_domain->base; out_free: kfree(etnaviv_domain); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu.h b/drivers/gpu/drm/etnaviv/etnaviv_iommu.h index 8b51e7c16feb..01d59bf70d78 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu.h @@ -18,11 +18,14 @@ #define __ETNAVIV_IOMMU_H__ struct etnaviv_gpu; +struct etnaviv_iommu_domain; -struct iommu_domain *etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu); +struct etnaviv_iommu_domain * +etnaviv_iommuv1_domain_alloc(struct etnaviv_gpu *gpu); void etnaviv_iommuv1_restore(struct etnaviv_gpu *gpu); -struct iommu_domain *etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu); +struct etnaviv_iommu_domain * +etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu); void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu); #endif /* __ETNAVIV_IOMMU_H__ */ diff --git a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c index cbe447ac5974..fc60fc8ddbf0 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c @@ -14,7 +14,6 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/iommu.h> #include <linux/platform_device.h> #include <linux/sizes.h> #include <linux/slab.h> @@ -40,10 +39,7 @@ #define MMUv2_MAX_STLB_ENTRIES 1024 struct etnaviv_iommuv2_domain { - struct iommu_domain domain; - struct device *dev; - void *bad_page_cpu; - dma_addr_t bad_page_dma; + struct etnaviv_iommu_domain base; /* M(aster) TLB aka first level pagetable */ u32 *mtlb_cpu; dma_addr_t mtlb_dma; @@ -52,13 +48,15 @@ struct etnaviv_iommuv2_domain { dma_addr_t stlb_dma[1024]; }; -static struct etnaviv_iommuv2_domain *to_etnaviv_domain(struct iommu_domain *domain) +static struct etnaviv_iommuv2_domain * +to_etnaviv_domain(struct etnaviv_iommu_domain *domain) { - return container_of(domain, struct etnaviv_iommuv2_domain, domain); + return container_of(domain, struct etnaviv_iommuv2_domain, base); } -static int etnaviv_iommuv2_map(struct iommu_domain *domain, unsigned long iova, - phys_addr_t paddr, size_t size, int prot) +static int etnaviv_iommuv2_map(struct etnaviv_iommu_domain *domain, + unsigned long iova, phys_addr_t paddr, + size_t size, int prot) { struct etnaviv_iommuv2_domain *etnaviv_domain = to_etnaviv_domain(domain); @@ -68,7 +66,7 @@ static int etnaviv_iommuv2_map(struct iommu_domain *domain, unsigned long iova, if (size != SZ_4K) return -EINVAL; - if (prot & IOMMU_WRITE) + if (prot & ETNAVIV_PROT_WRITE) entry |= MMUv2_PTE_WRITEABLE; mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT; @@ -79,8 +77,8 @@ static int etnaviv_iommuv2_map(struct iommu_domain *domain, unsigned long iova, return 0; } -static size_t etnaviv_iommuv2_unmap(struct iommu_domain *domain, - unsigned long iova, size_t size) +static size_t etnaviv_iommuv2_unmap(struct etnaviv_iommu_domain *domain, + unsigned long iova, size_t size) { struct etnaviv_iommuv2_domain *etnaviv_domain = to_etnaviv_domain(domain); @@ -97,38 +95,26 @@ static size_t etnaviv_iommuv2_unmap(struct iommu_domain *domain, return SZ_4K; } -static phys_addr_t etnaviv_iommuv2_iova_to_phys(struct iommu_domain *domain, - dma_addr_t iova) -{ - struct etnaviv_iommuv2_domain *etnaviv_domain = - to_etnaviv_domain(domain); - int mtlb_entry, stlb_entry; - - mtlb_entry = (iova & MMUv2_MTLB_MASK) >> MMUv2_MTLB_SHIFT; - stlb_entry = (iova & MMUv2_STLB_MASK) >> MMUv2_STLB_SHIFT; - - return etnaviv_domain->stlb_cpu[mtlb_entry][stlb_entry] & ~(SZ_4K - 1); -} - static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain) { u32 *p; int ret, i, j; /* allocate scratch page */ - etnaviv_domain->bad_page_cpu = dma_alloc_coherent(etnaviv_domain->dev, - SZ_4K, - &etnaviv_domain->bad_page_dma, - GFP_KERNEL); - if (!etnaviv_domain->bad_page_cpu) { + etnaviv_domain->base.bad_page_cpu = dma_alloc_coherent( + etnaviv_domain->base.dev, + SZ_4K, + &etnaviv_domain->base.bad_page_dma, + GFP_KERNEL); + if (!etnaviv_domain->base.bad_page_cpu) { ret = -ENOMEM; goto fail_mem; } - p = etnaviv_domain->bad_page_cpu; + p = etnaviv_domain->base.bad_page_cpu; for (i = 0; i < SZ_4K / 4; i++) *p++ = 0xdead55aa; - etnaviv_domain->mtlb_cpu = dma_alloc_coherent(etnaviv_domain->dev, + etnaviv_domain->mtlb_cpu = dma_alloc_coherent(etnaviv_domain->base.dev, SZ_4K, &etnaviv_domain->mtlb_dma, GFP_KERNEL); @@ -140,7 +126,7 @@ static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain) /* pre-populate STLB pages (may want to switch to on-demand later) */ for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { etnaviv_domain->stlb_cpu[i] = - dma_alloc_coherent(etnaviv_domain->dev, + dma_alloc_coherent(etnaviv_domain->base.dev, SZ_4K, &etnaviv_domain->stlb_dma[i], GFP_KERNEL); @@ -159,19 +145,19 @@ static int etnaviv_iommuv2_init(struct etnaviv_iommuv2_domain *etnaviv_domain) return 0; fail_mem: - if (etnaviv_domain->bad_page_cpu) - dma_free_coherent(etnaviv_domain->dev, SZ_4K, - etnaviv_domain->bad_page_cpu, - etnaviv_domain->bad_page_dma); + if (etnaviv_domain->base.bad_page_cpu) + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, + etnaviv_domain->base.bad_page_cpu, + etnaviv_domain->base.bad_page_dma); if (etnaviv_domain->mtlb_cpu) - dma_free_coherent(etnaviv_domain->dev, SZ_4K, + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, etnaviv_domain->mtlb_cpu, etnaviv_domain->mtlb_dma); for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { if (etnaviv_domain->stlb_cpu[i]) - dma_free_coherent(etnaviv_domain->dev, SZ_4K, + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, etnaviv_domain->stlb_cpu[i], etnaviv_domain->stlb_dma[i]); } @@ -179,23 +165,23 @@ fail_mem: return ret; } -static void etnaviv_iommuv2_domain_free(struct iommu_domain *domain) +static void etnaviv_iommuv2_domain_free(struct etnaviv_iommu_domain *domain) { struct etnaviv_iommuv2_domain *etnaviv_domain = to_etnaviv_domain(domain); int i; - dma_free_coherent(etnaviv_domain->dev, SZ_4K, - etnaviv_domain->bad_page_cpu, - etnaviv_domain->bad_page_dma); + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, + etnaviv_domain->base.bad_page_cpu, + etnaviv_domain->base.bad_page_dma); - dma_free_coherent(etnaviv_domain->dev, SZ_4K, + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, etnaviv_domain->mtlb_cpu, etnaviv_domain->mtlb_dma); for (i = 0; i < MMUv2_MAX_STLB_ENTRIES; i++) { if (etnaviv_domain->stlb_cpu[i]) - dma_free_coherent(etnaviv_domain->dev, SZ_4K, + dma_free_coherent(etnaviv_domain->base.dev, SZ_4K, etnaviv_domain->stlb_cpu[i], etnaviv_domain->stlb_dma[i]); } @@ -203,7 +189,7 @@ static void etnaviv_iommuv2_domain_free(struct iommu_domain *domain) vfree(etnaviv_domain); } -static size_t etnaviv_iommuv2_dump_size(struct iommu_domain *domain) +static size_t etnaviv_iommuv2_dump_size(struct etnaviv_iommu_domain *domain) { struct etnaviv_iommuv2_domain *etnaviv_domain = to_etnaviv_domain(domain); @@ -217,7 +203,7 @@ static size_t etnaviv_iommuv2_dump_size(struct iommu_domain *domain) return dump_size; } -static void etnaviv_iommuv2_dump(struct iommu_domain *domain, void *buf) +static void etnaviv_iommuv2_dump(struct etnaviv_iommu_domain *domain, void *buf) { struct etnaviv_iommuv2_domain *etnaviv_domain = to_etnaviv_domain(domain); @@ -230,18 +216,6 @@ static void etnaviv_iommuv2_dump(struct iommu_domain *domain, void *buf) memcpy(buf, etnaviv_domain->stlb_cpu[i], SZ_4K); } -static const struct etnaviv_iommu_ops etnaviv_iommu_ops = { - .ops = { - .domain_free = etnaviv_iommuv2_domain_free, - .map = etnaviv_iommuv2_map, - .unmap = etnaviv_iommuv2_unmap, - .iova_to_phys = etnaviv_iommuv2_iova_to_phys, - .pgsize_bitmap = SZ_4K, - }, - .dump_size = etnaviv_iommuv2_dump_size, - .dump = etnaviv_iommuv2_dump, -}; - void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu) { struct etnaviv_iommuv2_domain *etnaviv_domain = @@ -254,35 +228,45 @@ void etnaviv_iommuv2_restore(struct etnaviv_gpu *gpu) prefetch = etnaviv_buffer_config_mmuv2(gpu, (u32)etnaviv_domain->mtlb_dma, - (u32)etnaviv_domain->bad_page_dma); + (u32)etnaviv_domain->base.bad_page_dma); etnaviv_gpu_start_fe(gpu, (u32)etnaviv_cmdbuf_get_pa(gpu->buffer), prefetch); etnaviv_gpu_wait_idle(gpu, 100); gpu_write(gpu, VIVS_MMUv2_CONTROL, VIVS_MMUv2_CONTROL_ENABLE); } -struct iommu_domain *etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu) + +const struct etnaviv_iommu_domain_ops etnaviv_iommuv2_ops = { + .free = etnaviv_iommuv2_domain_free, + .map = etnaviv_iommuv2_map, + .unmap = etnaviv_iommuv2_unmap, + .dump_size = etnaviv_iommuv2_dump_size, + .dump = etnaviv_iommuv2_dump, +}; + +struct etnaviv_iommu_domain * +etnaviv_iommuv2_domain_alloc(struct etnaviv_gpu *gpu) { struct etnaviv_iommuv2_domain *etnaviv_domain; + struct etnaviv_iommu_domain *domain; int ret; etnaviv_domain = vzalloc(sizeof(*etnaviv_domain)); if (!etnaviv_domain) return NULL; - etnaviv_domain->dev = gpu->dev; + domain = &etnaviv_domain->base; - etnaviv_domain->domain.type = __IOMMU_DOMAIN_PAGING; - etnaviv_domain->domain.ops = &etnaviv_iommu_ops.ops; - etnaviv_domain->domain.pgsize_bitmap = SZ_4K; - etnaviv_domain->domain.geometry.aperture_start = 0; - etnaviv_domain->domain.geometry.aperture_end = ~0UL & ~(SZ_4K - 1); + domain->dev = gpu->dev; + domain->base = 0; + domain->size = (u64)SZ_1G * 4; + domain->ops = &etnaviv_iommuv2_ops; ret = etnaviv_iommuv2_init(etnaviv_domain); if (ret) goto out_free; - return &etnaviv_domain->domain; + return &etnaviv_domain->base; out_free: vfree(etnaviv_domain); diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index f103e787de94..35074b944778 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -22,17 +22,64 @@ #include "etnaviv_iommu.h" #include "etnaviv_mmu.h" -static int etnaviv_fault_handler(struct iommu_domain *iommu, struct device *dev, - unsigned long iova, int flags, void *arg) +static void etnaviv_domain_unmap(struct etnaviv_iommu_domain *domain, + unsigned long iova, size_t size) { - DBG("*** fault: iova=%08lx, flags=%d", iova, flags); - return 0; + size_t unmapped_page, unmapped = 0; + size_t pgsize = SZ_4K; + + if (!IS_ALIGNED(iova | size, pgsize)) { + pr_err("unaligned: iova 0x%lx size 0x%zx min_pagesz 0x%x\n", + iova, size, pgsize); + return; + } + + while (unmapped < size) { + unmapped_page = domain->ops->unmap(domain, iova, pgsize); + if (!unmapped_page) + break; + + iova += unmapped_page; + unmapped += unmapped_page; + } } -int etnaviv_iommu_map(struct etnaviv_iommu *iommu, u32 iova, - struct sg_table *sgt, unsigned len, int prot) +static int etnaviv_domain_map(struct etnaviv_iommu_domain *domain, + unsigned long iova, phys_addr_t paddr, + size_t size, int prot) { - struct iommu_domain *domain = iommu->domain; + unsigned long orig_iova = iova; + size_t pgsize = SZ_4K; + size_t orig_size = size; + int ret = 0; + + if (!IS_ALIGNED(iova | paddr | size, pgsize)) { + pr_err("unaligned: iova 0x%lx pa %pa size 0x%zx min_pagesz 0x%x\n", + iova, &paddr, size, pgsize); + return -EINVAL; + } + + while (size) { + ret = domain->ops->map(domain, iova, paddr, pgsize, prot); + if (ret) + break; + + iova += pgsize; + paddr += pgsize; + size -= pgsize; + } + + /* unroll mapping in case something went wrong */ + if (ret) + etnaviv_domain_unmap(domain, orig_iova, orig_size - size); + + return ret; +} + +static int etnaviv_iommu_map(struct etnaviv_iommu *iommu, u32 iova, + struct sg_table *sgt, unsigned len, int prot) +{ + struct etnaviv_iommu_domain *domain = iommu->domain; struct scatterlist *sg; unsigned int da = iova; unsigned int i, j; @@ -47,7 +94,7 @@ int etnaviv_iommu_map(struct etnaviv_iommu *iommu, u32 iova, VERB("map[%d]: %08x %08x(%zx)", i, iova, pa, bytes); - ret = iommu_map(domain, da, pa, bytes, prot); + ret = etnaviv_domain_map(domain, da, pa, bytes, prot); if (ret) goto fail; @@ -62,27 +109,24 @@ fail: for_each_sg(sgt->sgl, sg, i, j) { size_t bytes = sg_dma_len(sg) + sg->offset; - iommu_unmap(domain, da, bytes); + etnaviv_domain_unmap(domain, da, bytes); da += bytes; } return ret; } -int etnaviv_iommu_unmap(struct etnaviv_iommu *iommu, u32 iova, - struct sg_table *sgt, unsigned len) +static void etnaviv_iommu_unmap(struct etnaviv_iommu *iommu, u32 iova, + struct sg_table *sgt, unsigned len) { - struct iommu_domain *domain = iommu->domain; + struct etnaviv_iommu_domain *domain = iommu->domain; struct scatterlist *sg; unsigned int da = iova; int i; for_each_sg(sgt->sgl, sg, sgt->nents, i) { size_t bytes = sg_dma_len(sg) + sg->offset; - size_t unmapped; - unmapped = iommu_unmap(domain, da, bytes); - if (unmapped < bytes) - return unmapped; + etnaviv_domain_unmap(domain, da, bytes); VERB("unmap[%d]: %08x(%zx)", i, iova, bytes); @@ -90,8 +134,6 @@ int etnaviv_iommu_unmap(struct etnaviv_iommu *iommu, u32 iova, da += bytes; } - - return 0; } static void etnaviv_iommu_remove_mapping(struct etnaviv_iommu *mmu, @@ -237,7 +279,7 @@ int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, mmu->last_iova = node->start + etnaviv_obj->base.size; mapping->iova = node->start; ret = etnaviv_iommu_map(mmu, node->start, sgt, etnaviv_obj->base.size, - IOMMU_READ | IOMMU_WRITE); + ETNAVIV_PROT_READ | ETNAVIV_PROT_WRITE); if (ret < 0) { drm_mm_remove_node(node); @@ -271,7 +313,7 @@ void etnaviv_iommu_unmap_gem(struct etnaviv_iommu *mmu, void etnaviv_iommu_destroy(struct etnaviv_iommu *mmu) { drm_mm_takedown(&mmu->mm); - iommu_domain_free(mmu->domain); + mmu->domain->ops->free(mmu->domain); kfree(mmu); } @@ -303,11 +345,7 @@ struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu) mutex_init(&mmu->lock); INIT_LIST_HEAD(&mmu->mappings); - drm_mm_init(&mmu->mm, mmu->domain->geometry.aperture_start, - mmu->domain->geometry.aperture_end - - mmu->domain->geometry.aperture_start + 1); - - iommu_set_fault_handler(mmu->domain, etnaviv_fault_handler, gpu->dev); + drm_mm_init(&mmu->mm, mmu->domain->base, mmu->domain->size); return mmu; } @@ -338,8 +376,8 @@ int etnaviv_iommu_get_suballoc_va(struct etnaviv_gpu *gpu, dma_addr_t paddr, mutex_unlock(&mmu->lock); return ret; } - ret = iommu_map(mmu->domain, vram_node->start, paddr, size, - IOMMU_READ); + ret = etnaviv_domain_map(mmu->domain, vram_node->start, paddr, + size, ETNAVIV_PROT_READ); if (ret < 0) { drm_mm_remove_node(vram_node); mutex_unlock(&mmu->lock); @@ -362,25 +400,17 @@ void etnaviv_iommu_put_suballoc_va(struct etnaviv_gpu *gpu, if (mmu->version == ETNAVIV_IOMMU_V2) { mutex_lock(&mmu->lock); - iommu_unmap(mmu->domain,iova, size); + etnaviv_domain_unmap(mmu->domain, iova, size); drm_mm_remove_node(vram_node); mutex_unlock(&mmu->lock); } } size_t etnaviv_iommu_dump_size(struct etnaviv_iommu *iommu) { - struct etnaviv_iommu_ops *ops; - - ops = container_of(iommu->domain->ops, struct etnaviv_iommu_ops, ops); - - return ops->dump_size(iommu->domain); + return iommu->domain->ops->dump_size(iommu->domain); } void etnaviv_iommu_dump(struct etnaviv_iommu *iommu, void *buf) { - struct etnaviv_iommu_ops *ops; - - ops = container_of(iommu->domain->ops, struct etnaviv_iommu_ops, ops); - - ops->dump(iommu->domain, buf); + iommu->domain->ops->dump(iommu->domain, buf); } diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.h b/drivers/gpu/drm/etnaviv/etnaviv_mmu.h index 54be289e5981..ab603f5166b1 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.h +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.h @@ -17,7 +17,8 @@ #ifndef __ETNAVIV_MMU_H__ #define __ETNAVIV_MMU_H__ -#include <linux/iommu.h> +#define ETNAVIV_PROT_READ (1 << 0) +#define ETNAVIV_PROT_WRITE (1 << 1) enum etnaviv_iommu_version { ETNAVIV_IOMMU_V1 = 0, @@ -26,16 +27,31 @@ enum etnaviv_iommu_version { struct etnaviv_gpu; struct etnaviv_vram_mapping; +struct etnaviv_iommu_domain; -struct etnaviv_iommu_ops { - struct iommu_ops ops; - size_t (*dump_size)(struct iommu_domain *); - void (*dump)(struct iommu_domain *, void *); +struct etnaviv_iommu_domain_ops { + void (*free)(struct etnaviv_iommu_domain *); + int (*map)(struct etnaviv_iommu_domain *domain, unsigned long iova, + phys_addr_t paddr, size_t size, int prot); + size_t (*unmap)(struct etnaviv_iommu_domain *domain, unsigned long iova, + size_t size); + size_t (*dump_size)(struct etnaviv_iommu_domain *); + void (*dump)(struct etnaviv_iommu_domain *, void *); +}; + +struct etnaviv_iommu_domain { + struct device *dev; + void *bad_page_cpu; + dma_addr_t bad_page_dma; + u64 base; + u64 size; + + const struct etnaviv_iommu_domain_ops *ops; }; struct etnaviv_iommu { struct etnaviv_gpu *gpu; - struct iommu_domain *domain; + struct etnaviv_iommu_domain *domain; enum etnaviv_iommu_version version; @@ -49,18 +65,11 @@ struct etnaviv_iommu { struct etnaviv_gem_object; -int etnaviv_iommu_attach(struct etnaviv_iommu *iommu, const char **names, - int cnt); -int etnaviv_iommu_map(struct etnaviv_iommu *iommu, u32 iova, - struct sg_table *sgt, unsigned len, int prot); -int etnaviv_iommu_unmap(struct etnaviv_iommu *iommu, u32 iova, - struct sg_table *sgt, unsigned len); int etnaviv_iommu_map_gem(struct etnaviv_iommu *mmu, struct etnaviv_gem_object *etnaviv_obj, u32 memory_base, struct etnaviv_vram_mapping *mapping); void etnaviv_iommu_unmap_gem(struct etnaviv_iommu *mmu, struct etnaviv_vram_mapping *mapping); -void etnaviv_iommu_destroy(struct etnaviv_iommu *iommu); int etnaviv_iommu_get_suballoc_va(struct etnaviv_gpu *gpu, dma_addr_t paddr, struct drm_mm_node *vram_node, size_t size, @@ -73,6 +82,7 @@ size_t etnaviv_iommu_dump_size(struct etnaviv_iommu *iommu); void etnaviv_iommu_dump(struct etnaviv_iommu *iommu, void *buf); struct etnaviv_iommu *etnaviv_iommu_new(struct etnaviv_gpu *gpu); +void etnaviv_iommu_destroy(struct etnaviv_iommu *iommu); void etnaviv_iommu_restore(struct etnaviv_gpu *gpu); #endif /* __ETNAVIV_MMU_H__ */ diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c new file mode 100644 index 000000000000..768f5aafdd18 --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.c @@ -0,0 +1,495 @@ +/* + * Copyright (C) 2017 Etnaviv Project + * Copyright (C) 2017 Zodiac Inflight Innovations + * + * 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 "etnaviv_gpu.h" +#include "etnaviv_perfmon.h" +#include "state_hi.xml.h" + +struct etnaviv_pm_domain; + +struct etnaviv_pm_signal { + char name[64]; + u32 data; + + u32 (*sample)(struct etnaviv_gpu *gpu, + const struct etnaviv_pm_domain *domain, + const struct etnaviv_pm_signal *signal); +}; + +struct etnaviv_pm_domain { + char name[64]; + + /* profile register */ + u32 profile_read; + u32 profile_config; + + u8 nr_signals; + const struct etnaviv_pm_signal *signal; +}; + +struct etnaviv_pm_domain_meta { + const struct etnaviv_pm_domain *domains; + u32 nr_domains; +}; + +static u32 simple_reg_read(struct etnaviv_gpu *gpu, + const struct etnaviv_pm_domain *domain, + const struct etnaviv_pm_signal *signal) +{ + return gpu_read(gpu, signal->data); +} + +static u32 perf_reg_read(struct etnaviv_gpu *gpu, + const struct etnaviv_pm_domain *domain, + const struct etnaviv_pm_signal *signal) +{ + gpu_write(gpu, domain->profile_config, signal->data); + + return gpu_read(gpu, domain->profile_read); +} + +static u32 pipe_reg_read(struct etnaviv_gpu *gpu, + const struct etnaviv_pm_domain *domain, + const struct etnaviv_pm_signal *signal) +{ + u32 clock = gpu_read(gpu, VIVS_HI_CLOCK_CONTROL); + u32 value = 0; + unsigned i; + + for (i = 0; i < gpu->identity.pixel_pipes; i++) { + clock &= ~(VIVS_HI_CLOCK_CONTROL_DEBUG_PIXEL_PIPE__MASK); + clock |= VIVS_HI_CLOCK_CONTROL_DEBUG_PIXEL_PIPE(i); + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, clock); + gpu_write(gpu, domain->profile_config, signal->data); + value += gpu_read(gpu, domain->profile_read); + } + + /* switch back to pixel pipe 0 to prevent GPU hang */ + clock &= ~(VIVS_HI_CLOCK_CONTROL_DEBUG_PIXEL_PIPE__MASK); + clock |= VIVS_HI_CLOCK_CONTROL_DEBUG_PIXEL_PIPE(0); + gpu_write(gpu, VIVS_HI_CLOCK_CONTROL, clock); + + return value; +} + +static const struct etnaviv_pm_domain doms_3d[] = { + { + .name = "HI", + .profile_read = VIVS_MC_PROFILE_HI_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG2, + .nr_signals = 5, + .signal = (const struct etnaviv_pm_signal[]) { + { + "TOTAL_CYCLES", + VIVS_HI_PROFILE_TOTAL_CYCLES, + &simple_reg_read + }, + { + "IDLE_CYCLES", + VIVS_HI_PROFILE_IDLE_CYCLES, + &simple_reg_read + }, + { + "AXI_CYCLES_READ_REQUEST_STALLED", + VIVS_MC_PROFILE_CONFIG2_HI_AXI_CYCLES_READ_REQUEST_STALLED, + &perf_reg_read + }, + { + "AXI_CYCLES_WRITE_REQUEST_STALLED", + VIVS_MC_PROFILE_CONFIG2_HI_AXI_CYCLES_WRITE_REQUEST_STALLED, + &perf_reg_read + }, + { + "AXI_CYCLES_WRITE_DATA_STALLED", + VIVS_MC_PROFILE_CONFIG2_HI_AXI_CYCLES_WRITE_DATA_STALLED, + &perf_reg_read + } + } + }, + { + .name = "PE", + .profile_read = VIVS_MC_PROFILE_PE_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG0, + .nr_signals = 5, + .signal = (const struct etnaviv_pm_signal[]) { + { + "PIXEL_COUNT_KILLED_BY_COLOR_PIPE", + VIVS_MC_PROFILE_CONFIG0_PE_PIXEL_COUNT_KILLED_BY_COLOR_PIPE, + &pipe_reg_read + }, + { + "PIXEL_COUNT_KILLED_BY_DEPTH_PIPE", + VIVS_MC_PROFILE_CONFIG0_PE_PIXEL_COUNT_KILLED_BY_DEPTH_PIPE, + &pipe_reg_read + }, + { + "PIXEL_COUNT_DRAWN_BY_COLOR_PIPE", + VIVS_MC_PROFILE_CONFIG0_PE_PIXEL_COUNT_DRAWN_BY_COLOR_PIPE, + &pipe_reg_read + }, + { + "PIXEL_COUNT_DRAWN_BY_DEPTH_PIPE", + VIVS_MC_PROFILE_CONFIG0_PE_PIXEL_COUNT_DRAWN_BY_DEPTH_PIPE, + &pipe_reg_read + } + } + }, + { + .name = "SH", + .profile_read = VIVS_MC_PROFILE_SH_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG0, + .nr_signals = 9, + .signal = (const struct etnaviv_pm_signal[]) { + { + "SHADER_CYCLES", + VIVS_MC_PROFILE_CONFIG0_SH_SHADER_CYCLES, + &perf_reg_read + }, + { + "PS_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_PS_INST_COUNTER, + &perf_reg_read + }, + { + "RENDERED_PIXEL_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_RENDERED_PIXEL_COUNTER, + &perf_reg_read + }, + { + "VS_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_VS_INST_COUNTER, + &pipe_reg_read + }, + { + "RENDERED_VERTICE_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_RENDERED_VERTICE_COUNTER, + &pipe_reg_read + }, + { + "VTX_BRANCH_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_VTX_BRANCH_INST_COUNTER, + &pipe_reg_read + }, + { + "VTX_TEXLD_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_VTX_TEXLD_INST_COUNTER, + &pipe_reg_read + }, + { + "PXL_BRANCH_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_PXL_BRANCH_INST_COUNTER, + &pipe_reg_read + }, + { + "PXL_TEXLD_INST_COUNTER", + VIVS_MC_PROFILE_CONFIG0_SH_PXL_TEXLD_INST_COUNTER, + &pipe_reg_read + } + } + }, + { + .name = "PA", + .profile_read = VIVS_MC_PROFILE_PA_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG1, + .nr_signals = 6, + .signal = (const struct etnaviv_pm_signal[]) { + { + "INPUT_VTX_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_INPUT_VTX_COUNTER, + &perf_reg_read + }, + { + "INPUT_PRIM_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_INPUT_PRIM_COUNTER, + &perf_reg_read + }, + { + "OUTPUT_PRIM_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_OUTPUT_PRIM_COUNTER, + &perf_reg_read + }, + { + "DEPTH_CLIPPED_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_DEPTH_CLIPPED_COUNTER, + &pipe_reg_read + }, + { + "TRIVIAL_REJECTED_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_TRIVIAL_REJECTED_COUNTER, + &pipe_reg_read + }, + { + "CULLED_COUNTER", + VIVS_MC_PROFILE_CONFIG1_PA_CULLED_COUNTER, + &pipe_reg_read + } + } + }, + { + .name = "SE", + .profile_read = VIVS_MC_PROFILE_SE_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG1, + .nr_signals = 2, + .signal = (const struct etnaviv_pm_signal[]) { + { + "CULLED_TRIANGLE_COUNT", + VIVS_MC_PROFILE_CONFIG1_SE_CULLED_TRIANGLE_COUNT, + &perf_reg_read + }, + { + "CULLED_LINES_COUNT", + VIVS_MC_PROFILE_CONFIG1_SE_CULLED_LINES_COUNT, + &perf_reg_read + } + } + }, + { + .name = "RA", + .profile_read = VIVS_MC_PROFILE_RA_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG1, + .nr_signals = 7, + .signal = (const struct etnaviv_pm_signal[]) { + { + "VALID_PIXEL_COUNT", + VIVS_MC_PROFILE_CONFIG1_RA_VALID_PIXEL_COUNT, + &perf_reg_read + }, + { + "TOTAL_QUAD_COUNT", + VIVS_MC_PROFILE_CONFIG1_RA_TOTAL_QUAD_COUNT, + &perf_reg_read + }, + { + "VALID_QUAD_COUNT_AFTER_EARLY_Z", + VIVS_MC_PROFILE_CONFIG1_RA_VALID_QUAD_COUNT_AFTER_EARLY_Z, + &perf_reg_read + }, + { + "TOTAL_PRIMITIVE_COUNT", + VIVS_MC_PROFILE_CONFIG1_RA_TOTAL_PRIMITIVE_COUNT, + &perf_reg_read + }, + { + "PIPE_CACHE_MISS_COUNTER", + VIVS_MC_PROFILE_CONFIG1_RA_PIPE_CACHE_MISS_COUNTER, + &perf_reg_read + }, + { + "PREFETCH_CACHE_MISS_COUNTER", + VIVS_MC_PROFILE_CONFIG1_RA_PREFETCH_CACHE_MISS_COUNTER, + &perf_reg_read + }, + { + "CULLED_QUAD_COUNT", + VIVS_MC_PROFILE_CONFIG1_RA_CULLED_QUAD_COUNT, + &perf_reg_read + } + } + }, + { + .name = "TX", + .profile_read = VIVS_MC_PROFILE_TX_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG1, + .nr_signals = 9, + .signal = (const struct etnaviv_pm_signal[]) { + { + "TOTAL_BILINEAR_REQUESTS", + VIVS_MC_PROFILE_CONFIG1_TX_TOTAL_BILINEAR_REQUESTS, + &perf_reg_read + }, + { + "TOTAL_TRILINEAR_REQUESTS", + VIVS_MC_PROFILE_CONFIG1_TX_TOTAL_TRILINEAR_REQUESTS, + &perf_reg_read + }, + { + "TOTAL_DISCARDED_TEXTURE_REQUESTS", + VIVS_MC_PROFILE_CONFIG1_TX_TOTAL_DISCARDED_TEXTURE_REQUESTS, + &perf_reg_read + }, + { + "TOTAL_TEXTURE_REQUESTS", + VIVS_MC_PROFILE_CONFIG1_TX_TOTAL_TEXTURE_REQUESTS, + &perf_reg_read + }, + { + "MEM_READ_COUNT", + VIVS_MC_PROFILE_CONFIG1_TX_MEM_READ_COUNT, + &perf_reg_read + }, + { + "MEM_READ_IN_8B_COUNT", + VIVS_MC_PROFILE_CONFIG1_TX_MEM_READ_IN_8B_COUNT, + &perf_reg_read + }, + { + "CACHE_MISS_COUNT", + VIVS_MC_PROFILE_CONFIG1_TX_CACHE_MISS_COUNT, + &perf_reg_read + }, + { + "CACHE_HIT_TEXEL_COUNT", + VIVS_MC_PROFILE_CONFIG1_TX_CACHE_HIT_TEXEL_COUNT, + &perf_reg_read + }, + { + "CACHE_MISS_TEXEL_COUNT", + VIVS_MC_PROFILE_CONFIG1_TX_CACHE_MISS_TEXEL_COUNT, + &perf_reg_read + } + } + }, + { + .name = "MC", + .profile_read = VIVS_MC_PROFILE_MC_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG2, + .nr_signals = 3, + .signal = (const struct etnaviv_pm_signal[]) { + { + "TOTAL_READ_REQ_8B_FROM_PIPELINE", + VIVS_MC_PROFILE_CONFIG2_MC_TOTAL_READ_REQ_8B_FROM_PIPELINE, + &perf_reg_read + }, + { + "TOTAL_READ_REQ_8B_FROM_IP", + VIVS_MC_PROFILE_CONFIG2_MC_TOTAL_READ_REQ_8B_FROM_IP, + &perf_reg_read + }, + { + "TOTAL_WRITE_REQ_8B_FROM_PIPELINE", + VIVS_MC_PROFILE_CONFIG2_MC_TOTAL_WRITE_REQ_8B_FROM_PIPELINE, + &perf_reg_read + } + } + } +}; + +static const struct etnaviv_pm_domain doms_2d[] = { + { + .name = "PE", + .profile_read = VIVS_MC_PROFILE_PE_READ, + .profile_config = VIVS_MC_PROFILE_CONFIG0, + .nr_signals = 1, + .signal = (const struct etnaviv_pm_signal[]) { + { + "PIXELS_RENDERED_2D", + VIVS_MC_PROFILE_CONFIG0_PE_PIXELS_RENDERED_2D, + &pipe_reg_read + } + } + } +}; + +static const struct etnaviv_pm_domain doms_vg[] = { +}; + +static const struct etnaviv_pm_domain_meta doms_meta[] = { + { + .nr_domains = ARRAY_SIZE(doms_3d), + .domains = &doms_3d[0] + }, + { + .nr_domains = ARRAY_SIZE(doms_2d), + .domains = &doms_2d[0] + }, + { + .nr_domains = ARRAY_SIZE(doms_vg), + .domains = &doms_vg[0] + } +}; + +int etnaviv_pm_query_dom(struct etnaviv_gpu *gpu, + struct drm_etnaviv_pm_domain *domain) +{ + const struct etnaviv_pm_domain_meta *meta = &doms_meta[domain->pipe]; + const struct etnaviv_pm_domain *dom; + + if (domain->iter >= meta->nr_domains) + return -EINVAL; + + dom = meta->domains + domain->iter; + + domain->id = domain->iter; + domain->nr_signals = dom->nr_signals; + strncpy(domain->name, dom->name, sizeof(domain->name)); + + domain->iter++; + if (domain->iter == meta->nr_domains) + domain->iter = 0xff; + + return 0; +} + +int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu, + struct drm_etnaviv_pm_signal *signal) +{ + const struct etnaviv_pm_domain_meta *meta = &doms_meta[signal->pipe]; + const struct etnaviv_pm_domain *dom; + const struct etnaviv_pm_signal *sig; + + if (signal->domain >= meta->nr_domains) + return -EINVAL; + + dom = meta->domains + signal->domain; + + if (signal->iter > dom->nr_signals) + return -EINVAL; + + sig = &dom->signal[signal->iter]; + + signal->id = signal->iter; + strncpy(signal->name, sig->name, sizeof(signal->name)); + + signal->iter++; + if (signal->iter == dom->nr_signals) + signal->iter = 0xffff; + + return 0; +} + +int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r, + u32 exec_state) +{ + const struct etnaviv_pm_domain_meta *meta = &doms_meta[exec_state]; + const struct etnaviv_pm_domain *dom; + + if (r->domain >= meta->nr_domains) + return -EINVAL; + + dom = meta->domains + r->domain; + + if (r->signal > dom->nr_signals) + return -EINVAL; + + return 0; +} + +void etnaviv_perfmon_process(struct etnaviv_gpu *gpu, + const struct etnaviv_perfmon_request *pmr) +{ + const struct etnaviv_pm_domain_meta *meta = &doms_meta[gpu->exec_state]; + const struct etnaviv_pm_domain *dom; + const struct etnaviv_pm_signal *sig; + u32 *bo = pmr->bo_vma; + u32 val; + + dom = meta->domains + pmr->domain; + sig = &dom->signal[pmr->signal]; + val = sig->sample(gpu, dom, sig); + + *(bo + pmr->offset) = val; +} diff --git a/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h new file mode 100644 index 000000000000..35dce194cb00 --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_perfmon.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2017 Etnaviv Project + * Copyright (C) 2017 Zodiac Inflight Innovations + * + * 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/>. + */ + +#ifndef __ETNAVIV_PERFMON_H__ +#define __ETNAVIV_PERFMON_H__ + +struct etnaviv_gpu; +struct drm_etnaviv_pm_domain; +struct drm_etnaviv_pm_signal; + +struct etnaviv_perfmon_request +{ + u32 flags; + u8 domain; + u8 signal; + u32 sequence; + + /* bo to store a value */ + u32 *bo_vma; + u32 offset; +}; + +int etnaviv_pm_query_dom(struct etnaviv_gpu *gpu, + struct drm_etnaviv_pm_domain *domain); + +int etnaviv_pm_query_sig(struct etnaviv_gpu *gpu, + struct drm_etnaviv_pm_signal *signal); + +int etnaviv_pm_req_validate(const struct drm_etnaviv_gem_submit_pmr *r, + u32 exec_state); + +void etnaviv_perfmon_process(struct etnaviv_gpu *gpu, + const struct etnaviv_perfmon_request *pmr); + +#endif /* __ETNAVIV_PERFMON_H__ */ |