diff options
Diffstat (limited to 'drivers/gpu/drm/v3d/v3d_drv.h')
| -rw-r--r-- | drivers/gpu/drm/v3d/v3d_drv.h | 363 |
1 files changed, 324 insertions, 39 deletions
diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h index 8a390738d65b..1884686985b8 100644 --- a/drivers/gpu/drm/v3d/v3d_drv.h +++ b/drivers/gpu/drm/v3d/v3d_drv.h @@ -11,45 +11,128 @@ #include <drm/drm_gem_shmem_helper.h> #include <drm/gpu_scheduler.h> +#include "v3d_performance_counters.h" + #include "uapi/drm/v3d_drm.h" struct clk; struct platform_device; struct reset_control; -#define GMP_GRANULARITY (128 * 1024) +#define V3D_MMU_PAGE_SHIFT 12 +#define V3D_PAGE_FACTOR (PAGE_SIZE >> V3D_MMU_PAGE_SHIFT) -/* Enum for each of the V3D queues. */ -enum v3d_queue { - V3D_BIN, - V3D_RENDER, - V3D_TFU, - V3D_CSD, - V3D_CACHE_CLEAN, -}; +#define V3D_MAX_QUEUES (V3D_CPU + 1) -#define V3D_MAX_QUEUES (V3D_CACHE_CLEAN + 1) +static inline char *v3d_queue_to_string(enum v3d_queue queue) +{ + switch (queue) { + case V3D_BIN: return "bin"; + case V3D_RENDER: return "render"; + case V3D_TFU: return "tfu"; + case V3D_CSD: return "csd"; + case V3D_CACHE_CLEAN: return "cache_clean"; + case V3D_CPU: return "cpu"; + } + return "UNKNOWN"; +} + +struct v3d_stats { + u64 start_ns; + u64 enabled_ns; + u64 jobs_completed; + + /* + * This seqcount is used to protect the access to the GPU stats + * variables. It must be used as, while we are reading the stats, + * IRQs can happen and the stats can be updated. + */ + seqcount_t lock; +}; struct v3d_queue_state { struct drm_gpu_scheduler sched; u64 fence_context; u64 emit_seqno; + + /* Stores the GPU stats for this queue in the global context. */ + struct v3d_stats stats; + + /* Currently active job for this queue */ + struct v3d_job *active_job; + spinlock_t queue_lock; + /* Protect dma fence for signalling job completion */ + spinlock_t fence_lock; +}; + +/* Performance monitor object. The perform lifetime is controlled by userspace + * using perfmon related ioctls. A perfmon can be attached to a submit_cl + * request, and when this is the case, HW perf counters will be activated just + * before the submit_cl is submitted to the GPU and disabled when the job is + * done. This way, only events related to a specific job will be counted. + */ +struct v3d_perfmon { + /* Tracks the number of users of the perfmon, when this counter reaches + * zero the perfmon is destroyed. + */ + refcount_t refcnt; + + /* Protects perfmon stop, as it can be invoked from multiple places. */ + struct mutex lock; + + /* Number of counters activated in this perfmon instance + * (should be less than DRM_V3D_MAX_PERF_COUNTERS). + */ + u8 ncounters; + + /* Events counted by the HW perf counters. */ + u8 counters[DRM_V3D_MAX_PERF_COUNTERS]; + + /* Storage for counter values. Counters are incremented by the + * HW perf counter values every time the perfmon is attached + * to a GPU job. This way, perfmon users don't have to + * retrieve the results after each job if they want to track + * events covering several submissions. Note that counter + * values can't be reset, but you can fake a reset by + * destroying the perfmon and creating a new one. + */ + u64 values[] __counted_by(ncounters); +}; + +enum v3d_gen { + V3D_GEN_33 = 33, + V3D_GEN_41 = 41, + V3D_GEN_42 = 42, + V3D_GEN_71 = 71, +}; + +enum v3d_irq { + V3D_CORE_IRQ, + V3D_HUB_IRQ, + V3D_MAX_IRQS, }; struct v3d_dev { struct drm_device drm; - /* Short representation (e.g. 33, 41) of the V3D tech version - * and revision. - */ - int ver; + /* Short representation (e.g. 33, 41) of the V3D tech version */ + enum v3d_gen ver; + + /* Short representation (e.g. 5, 6) of the V3D tech revision */ + int rev; + bool single_irq_line; + int irq[V3D_MAX_IRQS]; + + struct v3d_perfmon_info perfmon_info; + void __iomem *hub_regs; void __iomem *core_regs[3]; void __iomem *bridge_regs; void __iomem *gca_regs; + void __iomem *sms_regs; struct clk *clk; struct reset_control *reset; @@ -75,19 +158,17 @@ struct v3d_dev { struct drm_mm mm; spinlock_t mm_lock; - struct work_struct overflow_mem_work; + /* + * tmpfs instance used for shmem backed objects + */ + struct vfsmount *gemfs; - struct v3d_bin_job *bin_job; - struct v3d_render_job *render_job; - struct v3d_tfu_job *tfu_job; - struct v3d_csd_job *csd_job; + struct work_struct overflow_mem_work; struct v3d_queue_state queue[V3D_MAX_QUEUES]; - /* Spinlock used to synchronize the overflow memory - * management against bin job submission. - */ - spinlock_t job_lock; + /* Used to track the active perfmon if any. */ + struct v3d_perfmon *active_perfmon; /* Protects bo_stats */ struct mutex bo_lock; @@ -113,6 +194,17 @@ struct v3d_dev { u32 num_allocated; u32 pages_allocated; } bo_stats; + + /* To support a performance analysis tool in user space, we require + * a single, globally configured performance monitor (perfmon) for + * all jobs. + */ + struct v3d_perfmon *global_perfmon; + + /* Global reset counter. The counter must be incremented when + * a GPU reset happens. It must be protected by @reset_lock. + */ + unsigned int reset_counter; }; static inline struct v3d_dev * @@ -124,7 +216,7 @@ to_v3d_dev(struct drm_device *dev) static inline bool v3d_has_csd(struct v3d_dev *v3d) { - return v3d->ver >= 41; + return v3d->ver >= V3D_GEN_41; } #define v3d_to_pdev(v3d) to_platform_device((v3d)->drm.dev) @@ -133,7 +225,21 @@ v3d_has_csd(struct v3d_dev *v3d) struct v3d_file_priv { struct v3d_dev *v3d; + struct { + struct idr idr; + struct mutex lock; + } perfmon; + struct drm_sched_entity sched_entity[V3D_MAX_QUEUES]; + + /* Stores the GPU stats for a specific queue for this fd. */ + struct v3d_stats stats[V3D_MAX_QUEUES]; + + /* Per-fd reset counter, must be incremented when a job submitted + * by this fd causes a GPU reset. It must be protected by + * &struct v3d_dev->reset_lock. + */ + unsigned int reset_counter; }; struct v3d_bo { @@ -145,6 +251,8 @@ struct v3d_bo { * v3d_render_job->unref_list */ struct list_head unref_head; + + void *vaddr; }; static inline struct v3d_bo * @@ -176,6 +284,15 @@ to_v3d_fence(struct dma_fence *fence) #define V3D_GCA_READ(offset) readl(v3d->gca_regs + offset) #define V3D_GCA_WRITE(offset, val) writel(val, v3d->gca_regs + offset) +#define V3D_SMS_IDLE 0x0 +#define V3D_SMS_ISOLATING_FOR_RESET 0xa +#define V3D_SMS_RESETTING 0xb +#define V3D_SMS_ISOLATING_FOR_POWER_OFF 0xc +#define V3D_SMS_POWER_OFF_STATE 0xd + +#define V3D_SMS_READ(offset) readl(v3d->sms_regs + (offset)) +#define V3D_SMS_WRITE(offset, val) writel(val, v3d->sms_regs + (offset)) + #define V3D_CORE_READ(core, offset) readl(v3d->core_regs[core] + offset) #define V3D_CORE_WRITE(core, offset, val) writel(val, v3d->core_regs[core] + offset) @@ -192,11 +309,6 @@ struct v3d_job { struct drm_gem_object **bo; u32 bo_count; - /* Array of struct dma_fence * to block on before submitting this job. - */ - struct xarray deps; - unsigned long last_dep; - /* v3d fence to be signaled by IRQ handler when the job is complete. */ struct dma_fence *irq_fence; @@ -205,6 +317,16 @@ struct v3d_job { */ struct dma_fence *done_fence; + /* Pointer to a performance monitor object if the user requested it, + * NULL otherwise. + */ + struct v3d_perfmon *perfmon; + + /* File descriptor of the process that submitted the job that could be used + * to collect per-process information about the GPU. + */ + struct v3d_file_priv *file_priv; + /* Callback for the freeing of the job on refcount going to 0. */ void (*free)(struct kref *ref); }; @@ -252,6 +374,123 @@ struct v3d_csd_job { struct drm_v3d_submit_csd args; }; +enum v3d_cpu_job_type { + V3D_CPU_JOB_TYPE_INDIRECT_CSD = 1, + V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY, + V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY, + V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY, + V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY, + V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY, +}; + +struct v3d_timestamp_query { + /* Offset of this query in the timestamp BO for its value. */ + u32 offset; + + /* Syncobj that indicates the timestamp availability */ + struct drm_syncobj *syncobj; +}; + +struct v3d_performance_query { + /* Performance monitor IDs for this query */ + u32 *kperfmon_ids; + + /* Syncobj that indicates the query availability */ + struct drm_syncobj *syncobj; +}; + +struct v3d_indirect_csd_info { + /* Indirect CSD */ + struct v3d_csd_job *job; + + /* Clean cache job associated to the Indirect CSD job */ + struct v3d_job *clean_job; + + /* Offset within the BO where the workgroup counts are stored */ + u32 offset; + + /* Workgroups size */ + u32 wg_size; + + /* Indices of the uniforms with the workgroup dispatch counts + * in the uniform stream. + */ + u32 wg_uniform_offsets[3]; + + /* Indirect BO */ + struct drm_gem_object *indirect; + + /* Context of the Indirect CSD job */ + struct ww_acquire_ctx acquire_ctx; +}; + +struct v3d_timestamp_query_info { + struct v3d_timestamp_query *queries; + + u32 count; +}; + +struct v3d_performance_query_info { + struct v3d_performance_query *queries; + + /* Number of performance queries */ + u32 count; + + /* Number of performance monitors related to that query pool */ + u32 nperfmons; + + /* Number of performance counters related to that query pool */ + u32 ncounters; +}; + +struct v3d_copy_query_results_info { + /* Define if should write to buffer using 64 or 32 bits */ + bool do_64bit; + + /* Define if it can write to buffer even if the query is not available */ + bool do_partial; + + /* Define if it should write availability bit to buffer */ + bool availability_bit; + + /* Offset of the copy buffer in the BO */ + u32 offset; + + /* Stride of the copy buffer in the BO */ + u32 stride; +}; + +struct v3d_cpu_job { + struct v3d_job base; + + enum v3d_cpu_job_type job_type; + + struct v3d_indirect_csd_info indirect_csd; + + struct v3d_timestamp_query_info timestamp_query; + + struct v3d_copy_query_results_info copy; + + struct v3d_performance_query_info performance_query; +}; + +typedef void (*v3d_cpu_job_fn)(struct v3d_cpu_job *); + +struct v3d_submit_outsync { + struct drm_syncobj *syncobj; +}; + +struct v3d_submit_ext { + u32 flags; + u32 wait_stage; + + u32 in_sync_count; + u64 in_syncs; + + u32 out_sync_count; + struct v3d_submit_outsync *out_syncs; +}; + /** * __wait_for - magic wait macro * @@ -292,7 +531,7 @@ struct v3d_csd_job { static inline unsigned long nsecs_to_jiffies_timeout(const u64 n) { /* nsecs_to_jiffies64() does not guard against overflow */ - if (NSEC_PER_SEC % HZ && + if ((NSEC_PER_SEC % HZ) != 0 && div_u64(n, NSEC_PER_SEC) >= MAX_JIFFY_OFFSET / HZ) return MAX_JIFFY_OFFSET; @@ -304,12 +543,16 @@ struct drm_gem_object *v3d_create_object(struct drm_device *dev, size_t size); void v3d_free_object(struct drm_gem_object *gem_obj); struct v3d_bo *v3d_bo_create(struct drm_device *dev, struct drm_file *file_priv, size_t size); +void v3d_get_bo_vaddr(struct v3d_bo *bo); +void v3d_put_bo_vaddr(struct v3d_bo *bo); int v3d_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_mmap_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_get_bo_offset_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); +int v3d_wait_bo_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); struct drm_gem_object *v3d_prime_import_sg_table(struct drm_device *dev, struct dma_buf_attachment *attach, struct sg_table *sgt); @@ -317,25 +560,38 @@ struct drm_gem_object *v3d_prime_import_sg_table(struct drm_device *dev, /* v3d_debugfs.c */ void v3d_debugfs_init(struct drm_minor *minor); +/* v3d_drv.c */ +void v3d_get_stats(const struct v3d_stats *stats, u64 timestamp, + u64 *active_runtime, u64 *jobs_completed); + /* v3d_fence.c */ extern const struct dma_fence_ops v3d_fence_ops; -struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue queue); +struct dma_fence *v3d_fence_create(struct v3d_dev *v3d, enum v3d_queue q); /* v3d_gem.c */ int v3d_gem_init(struct drm_device *dev); void v3d_gem_destroy(struct drm_device *dev); +void v3d_reset_sms(struct v3d_dev *v3d); +void v3d_reset(struct v3d_dev *v3d); +void v3d_invalidate_caches(struct v3d_dev *v3d); +void v3d_clean_caches(struct v3d_dev *v3d); + +/* v3d_gemfs.c */ +extern bool super_pages; +void v3d_gemfs_init(struct v3d_dev *v3d); +void v3d_gemfs_fini(struct v3d_dev *v3d); + +/* v3d_submit.c */ +void v3d_job_cleanup(struct v3d_job *job); +void v3d_job_put(struct v3d_job *job); int v3d_submit_cl_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_submit_tfu_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); int v3d_submit_csd_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv); -int v3d_wait_bo_ioctl(struct drm_device *dev, void *data, - struct drm_file *file_priv); -void v3d_job_put(struct v3d_job *job); -void v3d_reset(struct v3d_dev *v3d); -void v3d_invalidate_caches(struct v3d_dev *v3d); -void v3d_clean_caches(struct v3d_dev *v3d); +int v3d_submit_cpu_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); /* v3d_irq.c */ int v3d_irq_init(struct v3d_dev *v3d); @@ -344,12 +600,41 @@ void v3d_irq_disable(struct v3d_dev *v3d); void v3d_irq_reset(struct v3d_dev *v3d); /* v3d_mmu.c */ -int v3d_mmu_get_offset(struct drm_file *file_priv, struct v3d_bo *bo, - u32 *offset); +int v3d_mmu_flush_all(struct v3d_dev *v3d); int v3d_mmu_set_page_table(struct v3d_dev *v3d); void v3d_mmu_insert_ptes(struct v3d_bo *bo); void v3d_mmu_remove_ptes(struct v3d_bo *bo); /* v3d_sched.c */ +void v3d_timestamp_query_info_free(struct v3d_timestamp_query_info *query_info, + unsigned int count); +void v3d_performance_query_info_free(struct v3d_performance_query_info *query_info, + unsigned int count); +void v3d_job_update_stats(struct v3d_job *job, enum v3d_queue q); int v3d_sched_init(struct v3d_dev *v3d); void v3d_sched_fini(struct v3d_dev *v3d); + +/* v3d_perfmon.c */ +void v3d_perfmon_init(struct v3d_dev *v3d); +void v3d_perfmon_get(struct v3d_perfmon *perfmon); +void v3d_perfmon_put(struct v3d_perfmon *perfmon); +void v3d_perfmon_start(struct v3d_dev *v3d, struct v3d_perfmon *perfmon); +void v3d_perfmon_stop(struct v3d_dev *v3d, struct v3d_perfmon *perfmon, + bool capture); +struct v3d_perfmon *v3d_perfmon_find(struct v3d_file_priv *v3d_priv, int id); +void v3d_perfmon_open_file(struct v3d_file_priv *v3d_priv); +void v3d_perfmon_close_file(struct v3d_file_priv *v3d_priv); +int v3d_perfmon_create_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_destroy_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_get_values_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_get_counter_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); +int v3d_perfmon_set_global_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv); + +/* v3d_sysfs.c */ +int v3d_sysfs_init(struct device *dev); +void v3d_sysfs_destroy(struct device *dev); |