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27 #include "gen_buffer_alloc.h"
38 * Auxiliary surface mapping implementation
40 * These functions are implemented in common code shared by drivers.
43 struct gen_aux_map_context
;
44 struct gen_device_info
;
46 #define GEN_AUX_MAP_ADDRESS_MASK 0x0000ffffffffff00ull
47 #define GEN_AUX_MAP_FORMAT_BITS_MASK 0xfff0000000000000ull
48 #define GEN_AUX_MAP_ENTRY_VALID_BIT 0x1ull
49 #define GEN_AUX_MAP_GEN12_CCS_SCALE 256
50 #define GEN_AUX_MAP_MAIN_PAGE_SIZE (64 * 1024)
51 #define GEN_AUX_MAP_AUX_PAGE_SIZE \
52 (GEN_AUX_MAP_MAIN_PAGE_SIZE / GEN_AUX_MAP_GEN12_CCS_SCALE)
54 struct gen_aux_map_context
*
55 gen_aux_map_init(void *driver_ctx
,
56 struct gen_mapped_pinned_buffer_alloc
*buffer_alloc
,
57 const struct gen_device_info
*devinfo
);
60 gen_aux_map_finish(struct gen_aux_map_context
*ctx
);
63 gen_aux_map_get_state_num(struct gen_aux_map_context
*ctx
);
65 /** Returns the current number of buffers used by the aux-map tables
67 * When preparing to execute a new batch, use this function to determine how
68 * many buffers will be required. More buffers may be added by concurrent
69 * accesses of the aux-map functions, but they won't be required for since
70 * they involve surfaces not used by this batch.
73 gen_aux_map_get_num_buffers(struct gen_aux_map_context
*ctx
);
75 /** Fill an array of exec_object2 with aux-map buffer handles
77 * The gen_aux_map_get_num_buffers call should be made, then the driver can
78 * make sure the `obj` array is large enough before calling this function.
81 gen_aux_map_fill_bos(struct gen_aux_map_context
*ctx
, void **driver_bos
,
85 gen_aux_map_get_base(struct gen_aux_map_context
*ctx
);
88 gen_aux_map_format_bits_for_isl_surf(const struct isl_surf
*isl_surf
);
91 gen_aux_map_get_entry(struct gen_aux_map_context
*ctx
,
93 uint64_t *entry_address
);
96 gen_aux_map_add_mapping(struct gen_aux_map_context
*ctx
, uint64_t address
,
97 uint64_t aux_address
, uint64_t main_size_B
,
98 uint64_t format_bits
);
101 gen_aux_map_add_image(struct gen_aux_map_context
*ctx
,
102 const struct isl_surf
*isl_surf
, uint64_t address
,
103 uint64_t aux_address
);
106 gen_aux_map_unmap_range(struct gen_aux_map_context
*ctx
, uint64_t address
,
113 #endif /* GEN_AUX_MAP_H */