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472f49ef43
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/26797>
60 lines
1.4 KiB
C
60 lines
1.4 KiB
C
/* Copyright © 2023 Intel Corporation
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* SPDX-License-Identifier: MIT
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*/
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#ifndef __GENX_HELPERS_H__
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#define __GENX_HELPERS_H__
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#ifndef __gen_validate_value
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#define __gen_validate_value(x)
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#endif
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#ifndef __intel_field_functions
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#define __intel_field_functions
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#endif
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#ifndef __gen_address_type
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#error #define __gen_address_type before including this file
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#endif
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#ifndef __gen_user_data
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#error #define __gen_combine_address before including this file
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#endif
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static inline __attribute__((always_inline)) uint64_t
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__gen_offset(uint64_t v, ASSERTED uint32_t start, ASSERTED uint32_t end)
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{
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__gen_validate_value(v);
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#ifndef NDEBUG
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uint64_t mask = (~0ull >> (64 - (end - start + 1))) << start;
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assert((v & ~mask) == 0);
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#endif
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return v;
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}
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static inline __attribute__((always_inline)) uint64_t
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__gen_offset_nonzero(uint64_t v, uint32_t start, uint32_t end)
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{
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assert(v != 0ull);
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return __gen_offset(v, start, end);
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}
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static inline __attribute__((always_inline)) uint64_t
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__gen_address(__gen_user_data *data, void *location,
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__gen_address_type address, uint32_t delta,
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__attribute__((unused)) uint32_t start, uint32_t end)
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{
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uint64_t addr_u64 = __gen_combine_address(data, location, address, delta);
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if (end == 31) {
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return addr_u64;
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} else if (end < 63) {
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const unsigned shift = 63 - end;
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return (addr_u64 << shift) >> shift;
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} else {
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return addr_u64;
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}
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}
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#endif /* __GENX_HELPERS_H__ */
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