| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright (C) 2015 Broadcom |
| */ |
| #ifndef _VC4_DRV_H_ |
| #define _VC4_DRV_H_ |
| |
| #include <linux/delay.h> |
| #include <linux/refcount.h> |
| #include <linux/uaccess.h> |
| |
| #include <drm/drm_atomic.h> |
| #include <drm/drm_debugfs.h> |
| #include <drm/drm_device.h> |
| #include <drm/drm_encoder.h> |
| #include <drm/drm_gem_cma_helper.h> |
| #include <drm/drm_mm.h> |
| #include <drm/drm_modeset_lock.h> |
| |
| #include "uapi/drm/vc4_drm.h" |
| |
| struct drm_device; |
| struct drm_gem_object; |
| |
| /* Don't forget to update vc4_bo.c: bo_type_names[] when adding to |
| * this. |
| */ |
| enum vc4_kernel_bo_type { |
| /* Any kernel allocation (gem_create_object hook) before it |
| * gets another type set. |
| */ |
| VC4_BO_TYPE_KERNEL, |
| VC4_BO_TYPE_V3D, |
| VC4_BO_TYPE_V3D_SHADER, |
| VC4_BO_TYPE_DUMB, |
| VC4_BO_TYPE_BIN, |
| VC4_BO_TYPE_RCL, |
| VC4_BO_TYPE_BCL, |
| VC4_BO_TYPE_KERNEL_CACHE, |
| VC4_BO_TYPE_COUNT |
| }; |
| |
| /* 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 vc4_perfmon { |
| /* Tracks the number of users of the perfmon, when this counter reaches |
| * zero the perfmon is destroyed. |
| */ |
| refcount_t refcnt; |
| |
| /* Number of counters activated in this perfmon instance |
| * (should be less than DRM_VC4_MAX_PERF_COUNTERS). |
| */ |
| u8 ncounters; |
| |
| /* Events counted by the HW perf counters. */ |
| u8 events[DRM_VC4_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 counters[]; |
| }; |
| |
| struct vc4_dev { |
| struct drm_device *dev; |
| |
| struct vc4_hvs *hvs; |
| struct vc4_v3d *v3d; |
| struct vc4_dpi *dpi; |
| struct vc4_dsi *dsi1; |
| struct vc4_vec *vec; |
| struct vc4_txp *txp; |
| |
| struct vc4_hang_state *hang_state; |
| |
| /* The kernel-space BO cache. Tracks buffers that have been |
| * unreferenced by all other users (refcounts of 0!) but not |
| * yet freed, so we can do cheap allocations. |
| */ |
| struct vc4_bo_cache { |
| /* Array of list heads for entries in the BO cache, |
| * based on number of pages, so we can do O(1) lookups |
| * in the cache when allocating. |
| */ |
| struct list_head *size_list; |
| uint32_t size_list_size; |
| |
| /* List of all BOs in the cache, ordered by age, so we |
| * can do O(1) lookups when trying to free old |
| * buffers. |
| */ |
| struct list_head time_list; |
| struct work_struct time_work; |
| struct timer_list time_timer; |
| } bo_cache; |
| |
| u32 num_labels; |
| struct vc4_label { |
| const char *name; |
| u32 num_allocated; |
| u32 size_allocated; |
| } *bo_labels; |
| |
| /* Protects bo_cache and bo_labels. */ |
| struct mutex bo_lock; |
| |
| /* Purgeable BO pool. All BOs in this pool can have their memory |
| * reclaimed if the driver is unable to allocate new BOs. We also |
| * keep stats related to the purge mechanism here. |
| */ |
| struct { |
| struct list_head list; |
| unsigned int num; |
| size_t size; |
| unsigned int purged_num; |
| size_t purged_size; |
| struct mutex lock; |
| } purgeable; |
| |
| uint64_t dma_fence_context; |
| |
| /* Sequence number for the last job queued in bin_job_list. |
| * Starts at 0 (no jobs emitted). |
| */ |
| uint64_t emit_seqno; |
| |
| /* Sequence number for the last completed job on the GPU. |
| * Starts at 0 (no jobs completed). |
| */ |
| uint64_t finished_seqno; |
| |
| /* List of all struct vc4_exec_info for jobs to be executed in |
| * the binner. The first job in the list is the one currently |
| * programmed into ct0ca for execution. |
| */ |
| struct list_head bin_job_list; |
| |
| /* List of all struct vc4_exec_info for jobs that have |
| * completed binning and are ready for rendering. The first |
| * job in the list is the one currently programmed into ct1ca |
| * for execution. |
| */ |
| struct list_head render_job_list; |
| |
| /* List of the finished vc4_exec_infos waiting to be freed by |
| * job_done_work. |
| */ |
| struct list_head job_done_list; |
| /* Spinlock used to synchronize the job_list and seqno |
| * accesses between the IRQ handler and GEM ioctls. |
| */ |
| spinlock_t job_lock; |
| wait_queue_head_t job_wait_queue; |
| struct work_struct job_done_work; |
| |
| /* Used to track the active perfmon if any. Access to this field is |
| * protected by job_lock. |
| */ |
| struct vc4_perfmon *active_perfmon; |
| |
| /* List of struct vc4_seqno_cb for callbacks to be made from a |
| * workqueue when the given seqno is passed. |
| */ |
| struct list_head seqno_cb_list; |
| |
| /* The memory used for storing binner tile alloc, tile state, |
| * and overflow memory allocations. This is freed when V3D |
| * powers down. |
| */ |
| struct vc4_bo *bin_bo; |
| |
| /* Size of blocks allocated within bin_bo. */ |
| uint32_t bin_alloc_size; |
| |
| /* Bitmask of the bin_alloc_size chunks in bin_bo that are |
| * used. |
| */ |
| uint32_t bin_alloc_used; |
| |
| /* Bitmask of the current bin_alloc used for overflow memory. */ |
| uint32_t bin_alloc_overflow; |
| |
| /* Incremented when an underrun error happened after an atomic commit. |
| * This is particularly useful to detect when a specific modeset is too |
| * demanding in term of memory or HVS bandwidth which is hard to guess |
| * at atomic check time. |
| */ |
| atomic_t underrun; |
| |
| struct work_struct overflow_mem_work; |
| |
| int power_refcount; |
| |
| /* Set to true when the load tracker is supported. */ |
| bool load_tracker_available; |
| |
| /* Set to true when the load tracker is active. */ |
| bool load_tracker_enabled; |
| |
| /* Mutex controlling the power refcount. */ |
| struct mutex power_lock; |
| |
| struct { |
| struct timer_list timer; |
| struct work_struct reset_work; |
| } hangcheck; |
| |
| struct semaphore async_modeset; |
| |
| struct drm_modeset_lock ctm_state_lock; |
| struct drm_private_obj ctm_manager; |
| struct drm_private_obj load_tracker; |
| |
| /* List of vc4_debugfs_info_entry for adding to debugfs once |
| * the minor is available (after drm_dev_register()). |
| */ |
| struct list_head debugfs_list; |
| |
| /* Mutex for binner bo allocation. */ |
| struct mutex bin_bo_lock; |
| /* Reference count for our binner bo. */ |
| struct kref bin_bo_kref; |
| }; |
| |
| static inline struct vc4_dev * |
| to_vc4_dev(struct drm_device *dev) |
| { |
| return (struct vc4_dev *)dev->dev_private; |
| } |
| |
| struct vc4_bo { |
| struct drm_gem_cma_object base; |
| |
| /* seqno of the last job to render using this BO. */ |
| uint64_t seqno; |
| |
| /* seqno of the last job to use the RCL to write to this BO. |
| * |
| * Note that this doesn't include binner overflow memory |
| * writes. |
| */ |
| uint64_t write_seqno; |
| |
| bool t_format; |
| |
| /* List entry for the BO's position in either |
| * vc4_exec_info->unref_list or vc4_dev->bo_cache.time_list |
| */ |
| struct list_head unref_head; |
| |
| /* Time in jiffies when the BO was put in vc4->bo_cache. */ |
| unsigned long free_time; |
| |
| /* List entry for the BO's position in vc4_dev->bo_cache.size_list */ |
| struct list_head size_head; |
| |
| /* Struct for shader validation state, if created by |
| * DRM_IOCTL_VC4_CREATE_SHADER_BO. |
| */ |
| struct vc4_validated_shader_info *validated_shader; |
| |
| /* One of enum vc4_kernel_bo_type, or VC4_BO_TYPE_COUNT + i |
| * for user-allocated labels. |
| */ |
| int label; |
| |
| /* Count the number of active users. This is needed to determine |
| * whether we can move the BO to the purgeable list or not (when the BO |
| * is used by the GPU or the display engine we can't purge it). |
| */ |
| refcount_t usecnt; |
| |
| /* Store purgeable/purged state here */ |
| u32 madv; |
| struct mutex madv_lock; |
| }; |
| |
| static inline struct vc4_bo * |
| to_vc4_bo(struct drm_gem_object *bo) |
| { |
| return (struct vc4_bo *)bo; |
| } |
| |
| struct vc4_fence { |
| struct dma_fence base; |
| struct drm_device *dev; |
| /* vc4 seqno for signaled() test */ |
| uint64_t seqno; |
| }; |
| |
| static inline struct vc4_fence * |
| to_vc4_fence(struct dma_fence *fence) |
| { |
| return (struct vc4_fence *)fence; |
| } |
| |
| struct vc4_seqno_cb { |
| struct work_struct work; |
| uint64_t seqno; |
| void (*func)(struct vc4_seqno_cb *cb); |
| }; |
| |
| struct vc4_v3d { |
| struct vc4_dev *vc4; |
| struct platform_device *pdev; |
| void __iomem *regs; |
| struct clk *clk; |
| struct debugfs_regset32 regset; |
| }; |
| |
| struct vc4_hvs { |
| struct platform_device *pdev; |
| void __iomem *regs; |
| u32 __iomem *dlist; |
| |
| struct clk *core_clk; |
| |
| /* Memory manager for CRTCs to allocate space in the display |
| * list. Units are dwords. |
| */ |
| struct drm_mm dlist_mm; |
| /* Memory manager for the LBM memory used by HVS scaling. */ |
| struct drm_mm lbm_mm; |
| spinlock_t mm_lock; |
| |
| struct drm_mm_node mitchell_netravali_filter; |
| |
| struct debugfs_regset32 regset; |
| |
| /* HVS version 5 flag, therefore requires updated dlist structures */ |
| bool hvs5; |
| }; |
| |
| struct vc4_plane { |
| struct drm_plane base; |
| }; |
| |
| static inline struct vc4_plane * |
| to_vc4_plane(struct drm_plane *plane) |
| { |
| return (struct vc4_plane *)plane; |
| } |
| |
| enum vc4_scaling_mode { |
| VC4_SCALING_NONE, |
| VC4_SCALING_TPZ, |
| VC4_SCALING_PPF, |
| }; |
| |
| struct vc4_plane_state { |
| struct drm_plane_state base; |
| /* System memory copy of the display list for this element, computed |
| * at atomic_check time. |
| */ |
| u32 *dlist; |
| u32 dlist_size; /* Number of dwords allocated for the display list */ |
| u32 dlist_count; /* Number of used dwords in the display list. */ |
| |
| /* Offset in the dlist to various words, for pageflip or |
| * cursor updates. |
| */ |
| u32 pos0_offset; |
| u32 pos2_offset; |
| u32 ptr0_offset; |
| u32 lbm_offset; |
| |
| /* Offset where the plane's dlist was last stored in the |
| * hardware at vc4_crtc_atomic_flush() time. |
| */ |
| u32 __iomem *hw_dlist; |
| |
| /* Clipped coordinates of the plane on the display. */ |
| int crtc_x, crtc_y, crtc_w, crtc_h; |
| /* Clipped area being scanned from in the FB. */ |
| u32 src_x, src_y; |
| |
| u32 src_w[2], src_h[2]; |
| |
| /* Scaling selection for the RGB/Y plane and the Cb/Cr planes. */ |
| enum vc4_scaling_mode x_scaling[2], y_scaling[2]; |
| bool is_unity; |
| bool is_yuv; |
| |
| /* Offset to start scanning out from the start of the plane's |
| * BO. |
| */ |
| u32 offsets[3]; |
| |
| /* Our allocation in LBM for temporary storage during scaling. */ |
| struct drm_mm_node lbm; |
| |
| /* Set when the plane has per-pixel alpha content or does not cover |
| * the entire screen. This is a hint to the CRTC that it might need |
| * to enable background color fill. |
| */ |
| bool needs_bg_fill; |
| |
| /* Mark the dlist as initialized. Useful to avoid initializing it twice |
| * when async update is not possible. |
| */ |
| bool dlist_initialized; |
| |
| /* Load of this plane on the HVS block. The load is expressed in HVS |
| * cycles/sec. |
| */ |
| u64 hvs_load; |
| |
| /* Memory bandwidth needed for this plane. This is expressed in |
| * bytes/sec. |
| */ |
| u64 membus_load; |
| }; |
| |
| static inline struct vc4_plane_state * |
| to_vc4_plane_state(struct drm_plane_state *state) |
| { |
| return (struct vc4_plane_state *)state; |
| } |
| |
| enum vc4_encoder_type { |
| VC4_ENCODER_TYPE_NONE, |
| VC4_ENCODER_TYPE_HDMI0, |
| VC4_ENCODER_TYPE_HDMI1, |
| VC4_ENCODER_TYPE_VEC, |
| VC4_ENCODER_TYPE_DSI0, |
| VC4_ENCODER_TYPE_DSI1, |
| VC4_ENCODER_TYPE_SMI, |
| VC4_ENCODER_TYPE_DPI, |
| }; |
| |
| struct vc4_encoder { |
| struct drm_encoder base; |
| enum vc4_encoder_type type; |
| u32 clock_select; |
| |
| void (*pre_crtc_configure)(struct drm_encoder *encoder); |
| void (*pre_crtc_enable)(struct drm_encoder *encoder); |
| void (*post_crtc_enable)(struct drm_encoder *encoder); |
| |
| void (*post_crtc_disable)(struct drm_encoder *encoder); |
| void (*post_crtc_powerdown)(struct drm_encoder *encoder); |
| }; |
| |
| static inline struct vc4_encoder * |
| to_vc4_encoder(struct drm_encoder *encoder) |
| { |
| return container_of(encoder, struct vc4_encoder, base); |
| } |
| |
| struct vc4_crtc_data { |
| /* Which channels of the HVS can the output source from */ |
| unsigned int hvs_available_channels; |
| |
| /* Which output of the HVS this pixelvalve sources from. */ |
| int hvs_output; |
| }; |
| |
| struct vc4_pv_data { |
| struct vc4_crtc_data base; |
| |
| /* Depth of the PixelValve FIFO in bytes */ |
| unsigned int fifo_depth; |
| |
| /* Number of pixels output per clock period */ |
| u8 pixels_per_clock; |
| |
| enum vc4_encoder_type encoder_types[4]; |
| const char *debugfs_name; |
| |
| }; |
| |
| struct vc4_crtc { |
| struct drm_crtc base; |
| struct platform_device *pdev; |
| const struct vc4_crtc_data *data; |
| void __iomem *regs; |
| |
| /* Timestamp at start of vblank irq - unaffected by lock delays. */ |
| ktime_t t_vblank; |
| |
| u8 lut_r[256]; |
| u8 lut_g[256]; |
| u8 lut_b[256]; |
| |
| struct drm_pending_vblank_event *event; |
| |
| struct debugfs_regset32 regset; |
| }; |
| |
| static inline struct vc4_crtc * |
| to_vc4_crtc(struct drm_crtc *crtc) |
| { |
| return (struct vc4_crtc *)crtc; |
| } |
| |
| static inline const struct vc4_crtc_data * |
| vc4_crtc_to_vc4_crtc_data(const struct vc4_crtc *crtc) |
| { |
| return crtc->data; |
| } |
| |
| static inline const struct vc4_pv_data * |
| vc4_crtc_to_vc4_pv_data(const struct vc4_crtc *crtc) |
| { |
| const struct vc4_crtc_data *data = vc4_crtc_to_vc4_crtc_data(crtc); |
| |
| return container_of(data, struct vc4_pv_data, base); |
| } |
| |
| struct vc4_crtc_state { |
| struct drm_crtc_state base; |
| /* Dlist area for this CRTC configuration. */ |
| struct drm_mm_node mm; |
| bool feed_txp; |
| bool txp_armed; |
| unsigned int assigned_channel; |
| |
| struct { |
| unsigned int left; |
| unsigned int right; |
| unsigned int top; |
| unsigned int bottom; |
| } margins; |
| }; |
| |
| static inline struct vc4_crtc_state * |
| to_vc4_crtc_state(struct drm_crtc_state *crtc_state) |
| { |
| return (struct vc4_crtc_state *)crtc_state; |
| } |
| |
| #define V3D_READ(offset) readl(vc4->v3d->regs + offset) |
| #define V3D_WRITE(offset, val) writel(val, vc4->v3d->regs + offset) |
| #define HVS_READ(offset) readl(vc4->hvs->regs + offset) |
| #define HVS_WRITE(offset, val) writel(val, vc4->hvs->regs + offset) |
| |
| #define VC4_REG32(reg) { .name = #reg, .offset = reg } |
| |
| struct vc4_exec_info { |
| /* Sequence number for this bin/render job. */ |
| uint64_t seqno; |
| |
| /* Latest write_seqno of any BO that binning depends on. */ |
| uint64_t bin_dep_seqno; |
| |
| struct dma_fence *fence; |
| |
| /* Last current addresses the hardware was processing when the |
| * hangcheck timer checked on us. |
| */ |
| uint32_t last_ct0ca, last_ct1ca; |
| |
| /* Kernel-space copy of the ioctl arguments */ |
| struct drm_vc4_submit_cl *args; |
| |
| /* This is the array of BOs that were looked up at the start of exec. |
| * Command validation will use indices into this array. |
| */ |
| struct drm_gem_cma_object **bo; |
| uint32_t bo_count; |
| |
| /* List of BOs that are being written by the RCL. Other than |
| * the binner temporary storage, this is all the BOs written |
| * by the job. |
| */ |
| struct drm_gem_cma_object *rcl_write_bo[4]; |
| uint32_t rcl_write_bo_count; |
| |
| /* Pointers for our position in vc4->job_list */ |
| struct list_head head; |
| |
| /* List of other BOs used in the job that need to be released |
| * once the job is complete. |
| */ |
| struct list_head unref_list; |
| |
| /* Current unvalidated indices into @bo loaded by the non-hardware |
| * VC4_PACKET_GEM_HANDLES. |
| */ |
| uint32_t bo_index[2]; |
| |
| /* This is the BO where we store the validated command lists, shader |
| * records, and uniforms. |
| */ |
| struct drm_gem_cma_object *exec_bo; |
| |
| /** |
| * This tracks the per-shader-record state (packet 64) that |
| * determines the length of the shader record and the offset |
| * it's expected to be found at. It gets read in from the |
| * command lists. |
| */ |
| struct vc4_shader_state { |
| uint32_t addr; |
| /* Maximum vertex index referenced by any primitive using this |
| * shader state. |
| */ |
| uint32_t max_index; |
| } *shader_state; |
| |
| /** How many shader states the user declared they were using. */ |
| uint32_t shader_state_size; |
| /** How many shader state records the validator has seen. */ |
| uint32_t shader_state_count; |
| |
| bool found_tile_binning_mode_config_packet; |
| bool found_start_tile_binning_packet; |
| bool found_increment_semaphore_packet; |
| bool found_flush; |
| uint8_t bin_tiles_x, bin_tiles_y; |
| /* Physical address of the start of the tile alloc array |
| * (where each tile's binned CL will start) |
| */ |
| uint32_t tile_alloc_offset; |
| /* Bitmask of which binner slots are freed when this job completes. */ |
| uint32_t bin_slots; |
| |
| /** |
| * Computed addresses pointing into exec_bo where we start the |
| * bin thread (ct0) and render thread (ct1). |
| */ |
| uint32_t ct0ca, ct0ea; |
| uint32_t ct1ca, ct1ea; |
| |
| /* Pointer to the unvalidated bin CL (if present). */ |
| void *bin_u; |
| |
| /* Pointers to the shader recs. These paddr gets incremented as CL |
| * packets are relocated in validate_gl_shader_state, and the vaddrs |
| * (u and v) get incremented and size decremented as the shader recs |
| * themselves are validated. |
| */ |
| void *shader_rec_u; |
| void *shader_rec_v; |
| uint32_t shader_rec_p; |
| uint32_t shader_rec_size; |
| |
| /* Pointers to the uniform data. These pointers are incremented, and |
| * size decremented, as each batch of uniforms is uploaded. |
| */ |
| void *uniforms_u; |
| void *uniforms_v; |
| uint32_t uniforms_p; |
| uint32_t uniforms_size; |
| |
| /* Pointer to a performance monitor object if the user requested it, |
| * NULL otherwise. |
| */ |
| struct vc4_perfmon *perfmon; |
| |
| /* Whether the exec has taken a reference to the binner BO, which should |
| * happen with a VC4_PACKET_TILE_BINNING_MODE_CONFIG packet. |
| */ |
| bool bin_bo_used; |
| }; |
| |
| /* Per-open file private data. Any driver-specific resource that has to be |
| * released when the DRM file is closed should be placed here. |
| */ |
| struct vc4_file { |
| struct { |
| struct idr idr; |
| struct mutex lock; |
| } perfmon; |
| |
| bool bin_bo_used; |
| }; |
| |
| static inline struct vc4_exec_info * |
| vc4_first_bin_job(struct vc4_dev *vc4) |
| { |
| return list_first_entry_or_null(&vc4->bin_job_list, |
| struct vc4_exec_info, head); |
| } |
| |
| static inline struct vc4_exec_info * |
| vc4_first_render_job(struct vc4_dev *vc4) |
| { |
| return list_first_entry_or_null(&vc4->render_job_list, |
| struct vc4_exec_info, head); |
| } |
| |
| static inline struct vc4_exec_info * |
| vc4_last_render_job(struct vc4_dev *vc4) |
| { |
| if (list_empty(&vc4->render_job_list)) |
| return NULL; |
| return list_last_entry(&vc4->render_job_list, |
| struct vc4_exec_info, head); |
| } |
| |
| /** |
| * struct vc4_texture_sample_info - saves the offsets into the UBO for texture |
| * setup parameters. |
| * |
| * This will be used at draw time to relocate the reference to the texture |
| * contents in p0, and validate that the offset combined with |
| * width/height/stride/etc. from p1 and p2/p3 doesn't sample outside the BO. |
| * Note that the hardware treats unprovided config parameters as 0, so not all |
| * of them need to be set up for every texure sample, and we'll store ~0 as |
| * the offset to mark the unused ones. |
| * |
| * See the VC4 3D architecture guide page 41 ("Texture and Memory Lookup Unit |
| * Setup") for definitions of the texture parameters. |
| */ |
| struct vc4_texture_sample_info { |
| bool is_direct; |
| uint32_t p_offset[4]; |
| }; |
| |
| /** |
| * struct vc4_validated_shader_info - information about validated shaders that |
| * needs to be used from command list validation. |
| * |
| * For a given shader, each time a shader state record references it, we need |
| * to verify that the shader doesn't read more uniforms than the shader state |
| * record's uniform BO pointer can provide, and we need to apply relocations |
| * and validate the shader state record's uniforms that define the texture |
| * samples. |
| */ |
| struct vc4_validated_shader_info { |
| uint32_t uniforms_size; |
| uint32_t uniforms_src_size; |
| uint32_t num_texture_samples; |
| struct vc4_texture_sample_info *texture_samples; |
| |
| uint32_t num_uniform_addr_offsets; |
| uint32_t *uniform_addr_offsets; |
| |
| bool is_threaded; |
| }; |
| |
| /** |
| * __wait_for - magic wait macro |
| * |
| * Macro to help avoid open coding check/wait/timeout patterns. Note that it's |
| * important that we check the condition again after having timed out, since the |
| * timeout could be due to preemption or similar and we've never had a chance to |
| * check the condition before the timeout. |
| */ |
| #define __wait_for(OP, COND, US, Wmin, Wmax) ({ \ |
| const ktime_t end__ = ktime_add_ns(ktime_get_raw(), 1000ll * (US)); \ |
| long wait__ = (Wmin); /* recommended min for usleep is 10 us */ \ |
| int ret__; \ |
| might_sleep(); \ |
| for (;;) { \ |
| const bool expired__ = ktime_after(ktime_get_raw(), end__); \ |
| OP; \ |
| /* Guarantee COND check prior to timeout */ \ |
| barrier(); \ |
| if (COND) { \ |
| ret__ = 0; \ |
| break; \ |
| } \ |
| if (expired__) { \ |
| ret__ = -ETIMEDOUT; \ |
| break; \ |
| } \ |
| usleep_range(wait__, wait__ * 2); \ |
| if (wait__ < (Wmax)) \ |
| wait__ <<= 1; \ |
| } \ |
| ret__; \ |
| }) |
| |
| #define _wait_for(COND, US, Wmin, Wmax) __wait_for(, (COND), (US), (Wmin), \ |
| (Wmax)) |
| #define wait_for(COND, MS) _wait_for((COND), (MS) * 1000, 10, 1000) |
| |
| /* vc4_bo.c */ |
| struct drm_gem_object *vc4_create_object(struct drm_device *dev, size_t size); |
| void vc4_free_object(struct drm_gem_object *gem_obj); |
| struct vc4_bo *vc4_bo_create(struct drm_device *dev, size_t size, |
| bool from_cache, enum vc4_kernel_bo_type type); |
| int vc4_dumb_create(struct drm_file *file_priv, |
| struct drm_device *dev, |
| struct drm_mode_create_dumb *args); |
| struct dma_buf *vc4_prime_export(struct drm_gem_object *obj, int flags); |
| int vc4_create_bo_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_create_shader_bo_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_mmap_bo_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_set_tiling_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_get_tiling_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_get_hang_state_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_label_bo_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| vm_fault_t vc4_fault(struct vm_fault *vmf); |
| int vc4_mmap(struct file *filp, struct vm_area_struct *vma); |
| int vc4_prime_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma); |
| struct drm_gem_object *vc4_prime_import_sg_table(struct drm_device *dev, |
| struct dma_buf_attachment *attach, |
| struct sg_table *sgt); |
| void *vc4_prime_vmap(struct drm_gem_object *obj); |
| int vc4_bo_cache_init(struct drm_device *dev); |
| void vc4_bo_cache_destroy(struct drm_device *dev); |
| int vc4_bo_inc_usecnt(struct vc4_bo *bo); |
| void vc4_bo_dec_usecnt(struct vc4_bo *bo); |
| void vc4_bo_add_to_purgeable_pool(struct vc4_bo *bo); |
| void vc4_bo_remove_from_purgeable_pool(struct vc4_bo *bo); |
| |
| /* vc4_crtc.c */ |
| extern struct platform_driver vc4_crtc_driver; |
| int vc4_crtc_disable_at_boot(struct drm_crtc *crtc); |
| int vc4_crtc_init(struct drm_device *drm, struct vc4_crtc *vc4_crtc, |
| const struct drm_crtc_funcs *crtc_funcs, |
| const struct drm_crtc_helper_funcs *crtc_helper_funcs); |
| void vc4_crtc_destroy(struct drm_crtc *crtc); |
| int vc4_page_flip(struct drm_crtc *crtc, |
| struct drm_framebuffer *fb, |
| struct drm_pending_vblank_event *event, |
| uint32_t flags, |
| struct drm_modeset_acquire_ctx *ctx); |
| struct drm_crtc_state *vc4_crtc_duplicate_state(struct drm_crtc *crtc); |
| void vc4_crtc_destroy_state(struct drm_crtc *crtc, |
| struct drm_crtc_state *state); |
| void vc4_crtc_reset(struct drm_crtc *crtc); |
| void vc4_crtc_handle_vblank(struct vc4_crtc *crtc); |
| void vc4_crtc_get_margins(struct drm_crtc_state *state, |
| unsigned int *right, unsigned int *left, |
| unsigned int *top, unsigned int *bottom); |
| |
| /* vc4_debugfs.c */ |
| int vc4_debugfs_init(struct drm_minor *minor); |
| #ifdef CONFIG_DEBUG_FS |
| void vc4_debugfs_add_file(struct drm_device *drm, |
| const char *filename, |
| int (*show)(struct seq_file*, void*), |
| void *data); |
| void vc4_debugfs_add_regset32(struct drm_device *drm, |
| const char *filename, |
| struct debugfs_regset32 *regset); |
| #else |
| static inline void vc4_debugfs_add_file(struct drm_device *drm, |
| const char *filename, |
| int (*show)(struct seq_file*, void*), |
| void *data) |
| { |
| } |
| |
| static inline void vc4_debugfs_add_regset32(struct drm_device *drm, |
| const char *filename, |
| struct debugfs_regset32 *regset) |
| { |
| } |
| #endif |
| |
| /* vc4_drv.c */ |
| void __iomem *vc4_ioremap_regs(struct platform_device *dev, int index); |
| |
| /* vc4_dpi.c */ |
| extern struct platform_driver vc4_dpi_driver; |
| |
| /* vc4_dsi.c */ |
| extern struct platform_driver vc4_dsi_driver; |
| |
| /* vc4_fence.c */ |
| extern const struct dma_fence_ops vc4_fence_ops; |
| |
| /* vc4_gem.c */ |
| void vc4_gem_init(struct drm_device *dev); |
| void vc4_gem_destroy(struct drm_device *dev); |
| int vc4_submit_cl_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_wait_seqno_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_wait_bo_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| void vc4_submit_next_bin_job(struct drm_device *dev); |
| void vc4_submit_next_render_job(struct drm_device *dev); |
| void vc4_move_job_to_render(struct drm_device *dev, struct vc4_exec_info *exec); |
| int vc4_wait_for_seqno(struct drm_device *dev, uint64_t seqno, |
| uint64_t timeout_ns, bool interruptible); |
| void vc4_job_handle_completed(struct vc4_dev *vc4); |
| int vc4_queue_seqno_cb(struct drm_device *dev, |
| struct vc4_seqno_cb *cb, uint64_t seqno, |
| void (*func)(struct vc4_seqno_cb *cb)); |
| int vc4_gem_madvise_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| |
| /* vc4_hdmi.c */ |
| extern struct platform_driver vc4_hdmi_driver; |
| |
| /* vc4_vec.c */ |
| extern struct platform_driver vc4_vec_driver; |
| |
| /* vc4_txp.c */ |
| extern struct platform_driver vc4_txp_driver; |
| |
| /* vc4_irq.c */ |
| irqreturn_t vc4_irq(int irq, void *arg); |
| void vc4_irq_preinstall(struct drm_device *dev); |
| int vc4_irq_postinstall(struct drm_device *dev); |
| void vc4_irq_uninstall(struct drm_device *dev); |
| void vc4_irq_reset(struct drm_device *dev); |
| |
| /* vc4_hvs.c */ |
| extern struct platform_driver vc4_hvs_driver; |
| void vc4_hvs_stop_channel(struct drm_device *dev, unsigned int output); |
| int vc4_hvs_get_fifo_from_output(struct drm_device *dev, unsigned int output); |
| int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state); |
| void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state); |
| void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state); |
| void vc4_hvs_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *state); |
| void vc4_hvs_dump_state(struct drm_device *dev); |
| void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel); |
| void vc4_hvs_mask_underrun(struct drm_device *dev, int channel); |
| |
| /* vc4_kms.c */ |
| int vc4_kms_load(struct drm_device *dev); |
| |
| /* vc4_plane.c */ |
| struct drm_plane *vc4_plane_init(struct drm_device *dev, |
| enum drm_plane_type type); |
| int vc4_plane_create_additional_planes(struct drm_device *dev); |
| u32 vc4_plane_write_dlist(struct drm_plane *plane, u32 __iomem *dlist); |
| u32 vc4_plane_dlist_size(const struct drm_plane_state *state); |
| void vc4_plane_async_set_fb(struct drm_plane *plane, |
| struct drm_framebuffer *fb); |
| |
| /* vc4_v3d.c */ |
| extern struct platform_driver vc4_v3d_driver; |
| extern const struct of_device_id vc4_v3d_dt_match[]; |
| int vc4_v3d_get_bin_slot(struct vc4_dev *vc4); |
| int vc4_v3d_bin_bo_get(struct vc4_dev *vc4, bool *used); |
| void vc4_v3d_bin_bo_put(struct vc4_dev *vc4); |
| int vc4_v3d_pm_get(struct vc4_dev *vc4); |
| void vc4_v3d_pm_put(struct vc4_dev *vc4); |
| |
| /* vc4_validate.c */ |
| int |
| vc4_validate_bin_cl(struct drm_device *dev, |
| void *validated, |
| void *unvalidated, |
| struct vc4_exec_info *exec); |
| |
| int |
| vc4_validate_shader_recs(struct drm_device *dev, struct vc4_exec_info *exec); |
| |
| struct drm_gem_cma_object *vc4_use_bo(struct vc4_exec_info *exec, |
| uint32_t hindex); |
| |
| int vc4_get_rcl(struct drm_device *dev, struct vc4_exec_info *exec); |
| |
| bool vc4_check_tex_size(struct vc4_exec_info *exec, |
| struct drm_gem_cma_object *fbo, |
| uint32_t offset, uint8_t tiling_format, |
| uint32_t width, uint32_t height, uint8_t cpp); |
| |
| /* vc4_validate_shader.c */ |
| struct vc4_validated_shader_info * |
| vc4_validate_shader(struct drm_gem_cma_object *shader_obj); |
| |
| /* vc4_perfmon.c */ |
| void vc4_perfmon_get(struct vc4_perfmon *perfmon); |
| void vc4_perfmon_put(struct vc4_perfmon *perfmon); |
| void vc4_perfmon_start(struct vc4_dev *vc4, struct vc4_perfmon *perfmon); |
| void vc4_perfmon_stop(struct vc4_dev *vc4, struct vc4_perfmon *perfmon, |
| bool capture); |
| struct vc4_perfmon *vc4_perfmon_find(struct vc4_file *vc4file, int id); |
| void vc4_perfmon_open_file(struct vc4_file *vc4file); |
| void vc4_perfmon_close_file(struct vc4_file *vc4file); |
| int vc4_perfmon_create_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_perfmon_destroy_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| int vc4_perfmon_get_values_ioctl(struct drm_device *dev, void *data, |
| struct drm_file *file_priv); |
| |
| #endif /* _VC4_DRV_H_ */ |