diff options
Diffstat (limited to 'src/gallium/drivers/vc4/kernel/vc4_drv.h')
| -rw-r--r-- | src/gallium/drivers/vc4/kernel/vc4_drv.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc4/kernel/vc4_drv.h b/src/gallium/drivers/vc4/kernel/vc4_drv.h new file mode 100644 index 00000000000..45d9c40f97f --- /dev/null +++ b/src/gallium/drivers/vc4/kernel/vc4_drv.h @@ -0,0 +1,168 @@ +/* + * Copyright © 2014 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_DRV_H +#define VC4_DRV_H + +#include "vc4_simulator_validate.h" + +enum vc4_bo_mode { + VC4_MODE_UNDECIDED, + VC4_MODE_TILE_ALLOC, + VC4_MODE_TSDA, + VC4_MODE_RENDER, + VC4_MODE_SHADER, +}; + +struct vc4_bo_exec_state { + struct drm_gem_cma_object *bo; + enum vc4_bo_mode mode; +}; + +struct exec_info { + /* 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 vc4_bo_exec_state *bo; + uint32_t bo_count; + + /* 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 { + uint8_t packet; + 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_tile_rendering_mode_config_packet; + bool found_start_tile_binning_packet; + uint8_t bin_tiles_x, bin_tiles_y; + uint32_t fb_width, fb_height; + uint32_t tile_alloc_init_block_size; + struct drm_gem_cma_object *tile_alloc_bo; + + /** + * 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; + + /* 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; +}; + +/** + * 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 { + 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; +}; + +/* vc4_validate.c */ +int +vc4_validate_cl(struct drm_device *dev, + void *validated, + void *unvalidated, + uint32_t len, + bool is_bin, + struct exec_info *exec); + +int +vc4_validate_shader_recs(struct drm_device *dev, struct exec_info *exec); + +struct vc4_validated_shader_info * +vc4_validate_shader(struct drm_gem_cma_object *shader_obj, + uint32_t start_offset); + +#endif /* VC4_DRV_H */ |