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vc4_drm.h
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/* * Copyright © 2014-2015 Broadcom * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including the next * paragraph) shall be included in all copies or substantial portions of the * Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ #ifndef _VC4_DRM_H_ #define _VC4_DRM_H_ #include "drm.h" #if defined(__cplusplus) extern "C" { #endif #define DRM_VC4_SUBMIT_CL 0x00 #define DRM_VC4_WAIT_SEQNO 0x01 #define DRM_VC4_WAIT_BO 0x02 #define DRM_VC4_CREATE_BO 0x03 #define DRM_VC4_MMAP_BO 0x04 #define DRM_VC4_CREATE_SHADER_BO 0x05 #define DRM_VC4_GET_HANG_STATE 0x06 #define DRM_VC4_GET_PARAM 0x07 #define DRM_VC4_SET_TILING 0x08 #define DRM_VC4_GET_TILING 0x09 #define DRM_VC4_LABEL_BO 0x0a #define DRM_VC4_GEM_MADVISE 0x0b #define DRM_VC4_PERFMON_CREATE 0x0c #define DRM_VC4_PERFMON_DESTROY 0x0d #define DRM_VC4_PERFMON_GET_VALUES 0x0e #define DRM_IOCTL_VC4_SUBMIT_CL DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_SUBMIT_CL, struct drm_vc4_submit_cl) #define DRM_IOCTL_VC4_WAIT_SEQNO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_WAIT_SEQNO, struct drm_vc4_wait_seqno) #define DRM_IOCTL_VC4_WAIT_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_WAIT_BO, struct drm_vc4_wait_bo) #define DRM_IOCTL_VC4_CREATE_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_CREATE_BO, struct drm_vc4_create_bo) #define DRM_IOCTL_VC4_MMAP_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_MMAP_BO, struct drm_vc4_mmap_bo) #define DRM_IOCTL_VC4_CREATE_SHADER_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_CREATE_SHADER_BO, struct drm_vc4_create_shader_bo) #define DRM_IOCTL_VC4_GET_HANG_STATE DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_GET_HANG_STATE, struct drm_vc4_get_hang_state) #define DRM_IOCTL_VC4_GET_PARAM DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_GET_PARAM, struct drm_vc4_get_param) #define DRM_IOCTL_VC4_SET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_SET_TILING, struct drm_vc4_set_tiling) #define DRM_IOCTL_VC4_GET_TILING DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_GET_TILING, struct drm_vc4_get_tiling) #define DRM_IOCTL_VC4_LABEL_BO DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_LABEL_BO, struct drm_vc4_label_bo) #define DRM_IOCTL_VC4_GEM_MADVISE DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_GEM_MADVISE, struct drm_vc4_gem_madvise) #define DRM_IOCTL_VC4_PERFMON_CREATE DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_PERFMON_CREATE, struct drm_vc4_perfmon_create) #define DRM_IOCTL_VC4_PERFMON_DESTROY DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_PERFMON_DESTROY, struct drm_vc4_perfmon_destroy) #define DRM_IOCTL_VC4_PERFMON_GET_VALUES DRM_IOWR(DRM_COMMAND_BASE + DRM_VC4_PERFMON_GET_VALUES, struct drm_vc4_perfmon_get_values) struct drm_vc4_submit_rcl_surface { __u32 hindex; /* Handle index, or ~0 if not present. */ __u32 offset; /* Offset to start of buffer. */ /* * Bits for either render config (color_write) or load/store packet. * Bits should all be 0 for MSAA load/stores. */ __u16 bits; #define VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES (1 << 0) __u16 flags; }; /** * struct drm_vc4_submit_cl - ioctl argument for submitting commands to the 3D * engine. * * Drivers typically use GPU BOs to store batchbuffers / command lists and * their associated state. However, because the VC4 lacks an MMU, we have to * do validation of memory accesses by the GPU commands. If we were to store * our commands in BOs, we'd need to do uncached readback from them to do the * validation process, which is too expensive. Instead, userspace accumulates * commands and associated state in plain memory, then the kernel copies the * data to its own address space, and then validates and stores it in a GPU * BO. */ struct drm_vc4_submit_cl { /* Pointer to the binner command list. * * This is the first set of commands executed, which runs the * coordinate shader to determine where primitives land on the screen, * then writes out the state updates and draw calls necessary per tile * to the tile allocation BO. */ __u64 bin_cl; /* Pointer to the shader records. * * Shader records are the structures read by the hardware that contain * pointers to uniforms, shaders, and vertex attributes. The * reference to the shader record has enough information to determine * how many pointers are necessary (fixed number for shaders/uniforms, * and an attribute count), so those BO indices into bo_handles are * just stored as __u32s before each shader record passed in. */ __u64 shader_rec; /* Pointer to uniform data and texture handles for the textures * referenced by the shader. * * For each shader state record, there is a set of uniform data in the * order referenced by the record (FS, VS, then CS). Each set of * uniform data has a __u32 index into bo_handles per texture * sample operation, in the order the QPU_W_TMUn_S writes appear in * the program. Following the texture BO handle indices is the actual * uniform data. * * The individual uniform state blocks don't have sizes passed in, * because the kernel has to determine the sizes anyway during shader * code validation. */ __u64 uniforms; __u64 bo_handles; /* Size in bytes of the binner command list. */ __u32 bin_cl_size; /* Size in bytes of the set of shader records. */ __u32 shader_rec_size; /* Number of shader records. * * This could just be computed from the contents of shader_records and * the address bits of references to them from the bin CL, but it * keeps the kernel from having to resize some allocations it makes. */ __u32 shader_rec_count; /* Size in bytes of the uniform state. */ __u32 uniforms_size; /* Number of BO handles passed in (size is that times 4). */ __u32 bo_handle_count; /* RCL setup: */ __u16 width; __u16 height; __u8 min_x_tile; __u8 min_y_tile; __u8 max_x_tile; __u8 max_y_tile; struct drm_vc4_submit_rcl_surface color_read; struct drm_vc4_submit_rcl_surface color_write; struct drm_vc4_submit_rcl_surface zs_read; struct drm_vc4_submit_rcl_surface zs_write; struct drm_vc4_submit_rcl_surface msaa_color_write; struct drm_vc4_submit_rcl_surface msaa_zs_write; __u32 clear_color[2]; __u32 clear_z; __u8 clear_s; __u32 pad:24; #define VC4_SUBMIT_CL_USE_CLEAR_COLOR (1 << 0) /* By default, the kernel gets to choose the order that the tiles are * rendered in. If this is set, then the tiles will be rendered in a * raster order, with the right-to-left vs left-to-right and * top-to-bottom vs bottom-to-top dictated by * VC4_SUBMIT_CL_RCL_ORDER_INCREASING_*. This allows overlapping * blits to be implemented using the 3D engine. */ #define VC4_SUBMIT_CL_FIXED_RCL_ORDER (1 << 1) #define VC4_SUBMIT_CL_RCL_ORDER_INCREASING_X (1 << 2) #define VC4_SUBMIT_CL_RCL_ORDER_INCREASING_Y (1 << 3) __u32 flags; /* Returned value of the seqno of this render job (for the * wait ioctl). */ __u64 seqno; /* ID of the perfmon to attach to this job. 0 means no perfmon. */ __u32 perfmonid; /* Syncobj handle to wait on. If set, processing of this render job * will not start until the syncobj is signaled. 0 means ignore. */ __u32 in_sync; /* Syncobj handle to export fence to. If set, the fence in the syncobj * will be replaced with a fence that signals upon completion of this * render job. 0 means ignore. */ __u32 out_sync; __u32 pad2; }; /** * struct drm_vc4_wait_seqno - ioctl argument for waiting for * DRM_VC4_SUBMIT_CL completion using its returned seqno. * * timeout_ns is the timeout in nanoseconds, where "0" means "don't * block, just return the status." */ struct drm_vc4_wait_seqno { __u64 seqno; __u64 timeout_ns; }; /** * struct drm_vc4_wait_bo - ioctl argument for waiting for * completion of the last DRM_VC4_SUBMIT_CL on a BO. * * This is useful for cases where multiple processes might be * rendering to a BO and you want to wait for all rendering to be * completed. */ struct drm_vc4_wait_bo { __u32 handle; __u32 pad; __u64 timeout_ns; }; /** * struct drm_vc4_create_bo - ioctl argument for creating VC4 BOs. * * There are currently no values for the flags argument, but it may be * used in a future extension. */ struct drm_vc4_create_bo { __u32 size; __u32 flags; /** Returned GEM handle for the BO. */ __u32 handle; __u32 pad; }; /** * struct drm_vc4_mmap_bo - ioctl argument for mapping VC4 BOs. * * This doesn't actually perform an mmap. Instead, it returns the * offset you need to use in an mmap on the DRM device node. This * means that tools like valgrind end up knowing about the mapped * memory. * * There are currently no values for the flags argument, but it may be * used in a future extension. */ struct drm_vc4_mmap_bo { /** Handle for the object being mapped. */ __u32 handle; __u32 flags; /** offset into the drm node to use for subsequent mmap call. */ __u64 offset; }; /** * struct drm_vc4_create_shader_bo - ioctl argument for creating VC4 * shader BOs. * * Since allowing a shader to be overwritten while it's also being * executed from would allow privlege escalation, shaders must be * created using this ioctl, and they can't be mmapped later. */ struct drm_vc4_create_shader_bo { /* Size of the data argument. */ __u32 size; /* Flags, currently must be 0. */ __u32 flags; /* Pointer to the data. */ __u64 data; /** Returned GEM handle for the BO. */ __u32 handle; /* Pad, must be 0. */ __u32 pad; }; struct drm_vc4_get_hang_state_bo { __u32 handle; __u32 paddr; __u32 size; __u32 pad; }; /** * struct drm_vc4_hang_state - ioctl argument for collecting state * from a GPU hang for analysis. */ struct drm_vc4_get_hang_state { /** Pointer to array of struct drm_vc4_get_hang_state_bo. */ __u64 bo; /** * On input, the size of the bo array. Output is the number * of bos to be returned. */ __u32 bo_count; __u32 start_bin, start_render; __u32 ct0ca, ct0ea; __u32 ct1ca, ct1ea; __u32 ct0cs, ct1cs; __u32 ct0ra0, ct1ra0; __u32 bpca, bpcs; __u32 bpoa, bpos; __u32 vpmbase; __u32 dbge; __u32 fdbgo; __u32 fdbgb; __u32 fdbgr; __u32 fdbgs; __u32 errstat; /* Pad that we may save more registers into in the future. */ __u32 pad[16]; }; #define DRM_VC4_PARAM_V3D_IDENT0 0 #define DRM_VC4_PARAM_V3D_IDENT1 1 #define DRM_VC4_PARAM_V3D_IDENT2 2 #define DRM_VC4_PARAM_SUPPORTS_BRANCHES 3 #define DRM_VC4_PARAM_SUPPORTS_ETC1 4 #define DRM_VC4_PARAM_SUPPORTS_THREADED_FS 5 #define DRM_VC4_PARAM_SUPPORTS_FIXED_RCL_ORDER 6 #define DRM_VC4_PARAM_SUPPORTS_MADVISE 7 #define DRM_VC4_PARAM_SUPPORTS_PERFMON 8 struct drm_vc4_get_param { __u32 param; __u32 pad; __u64 value; }; struct drm_vc4_get_tiling { __u32 handle; __u32 flags; __u64 modifier; }; struct drm_vc4_set_tiling { __u32 handle; __u32 flags; __u64 modifier; }; /** * struct drm_vc4_label_bo - Attach a name to a BO for debug purposes. */ struct drm_vc4_label_bo { __u32 handle; __u32 len; __u64 name; }; /* * States prefixed with '__' are internal states and cannot be passed to the * DRM_IOCTL_VC4_GEM_MADVISE ioctl. */ #define VC4_MADV_WILLNEED 0 #define VC4_MADV_DONTNEED 1 #define __VC4_MADV_PURGED 2 #define __VC4_MADV_NOTSUPP 3 struct drm_vc4_gem_madvise { __u32 handle; __u32 madv; __u32 retained; __u32 pad; }; enum { VC4_PERFCNT_FEP_VALID_PRIMS_NO_RENDER, VC4_PERFCNT_FEP_VALID_PRIMS_RENDER, VC4_PERFCNT_FEP_CLIPPED_QUADS, VC4_PERFCNT_FEP_VALID_QUADS, VC4_PERFCNT_TLB_QUADS_NOT_PASSING_STENCIL, VC4_PERFCNT_TLB_QUADS_NOT_PASSING_Z_AND_STENCIL, VC4_PERFCNT_TLB_QUADS_PASSING_Z_AND_STENCIL, VC4_PERFCNT_TLB_QUADS_ZERO_COVERAGE, VC4_PERFCNT_TLB_QUADS_NON_ZERO_COVERAGE, VC4_PERFCNT_TLB_QUADS_WRITTEN_TO_COLOR_BUF, VC4_PERFCNT_PLB_PRIMS_OUTSIDE_VIEWPORT, VC4_PERFCNT_PLB_PRIMS_NEED_CLIPPING, VC4_PERFCNT_PSE_PRIMS_REVERSED, VC4_PERFCNT_QPU_TOTAL_IDLE_CYCLES, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_VERTEX_COORD_SHADING, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_FRAGMENT_SHADING, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_EXEC_VALID_INST, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_WAITING_TMUS, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_WAITING_SCOREBOARD, VC4_PERFCNT_QPU_TOTAL_CLK_CYCLES_WAITING_VARYINGS, VC4_PERFCNT_QPU_TOTAL_INST_CACHE_HIT, VC4_PERFCNT_QPU_TOTAL_INST_CACHE_MISS, VC4_PERFCNT_QPU_TOTAL_UNIFORM_CACHE_HIT, VC4_PERFCNT_QPU_TOTAL_UNIFORM_CACHE_MISS, VC4_PERFCNT_TMU_TOTAL_TEXT_QUADS_PROCESSED, VC4_PERFCNT_TMU_TOTAL_TEXT_CACHE_MISS, VC4_PERFCNT_VPM_TOTAL_CLK_CYCLES_VDW_STALLED, VC4_PERFCNT_VPM_TOTAL_CLK_CYCLES_VCD_STALLED, VC4_PERFCNT_L2C_TOTAL_L2_CACHE_HIT, VC4_PERFCNT_L2C_TOTAL_L2_CACHE_MISS, VC4_PERFCNT_NUM_EVENTS, }; #define DRM_VC4_MAX_PERF_COUNTERS 16 struct drm_vc4_perfmon_create { __u32 id; __u32 ncounters; __u8 events[DRM_VC4_MAX_PERF_COUNTERS]; }; struct drm_vc4_perfmon_destroy { __u32 id; }; /* * Returns the values of the performance counters tracked by this * perfmon (as an array of ncounters u64 values). * * No implicit synchronization is performed, so the user has to * guarantee that any jobs using this perfmon have already been * completed (probably by blocking on the seqno returned by the * last exec that used the perfmon). */ struct drm_vc4_perfmon_get_values { __u32 id; __u64 values_ptr; }; #if defined(__cplusplus) } #endif #endif /* _VC4_DRM_H_ */