1e0ee84841
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37805>
63 lines
1.5 KiB
Lua
63 lines
1.5 KiB
Lua
-- Copyright © 2025 Intel Corporation
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-- SPDX-License-Identifier: MIT
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local M = {}
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local GRF_SLOTS = devinfo.ver >= 20 and 16 or 8
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local mov_ub = function(grf, values)
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local s = ""
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for i = 1, #values, 4 do
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local b0 = values[i] or 0
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local b1 = values[i+1] or 0
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local b2 = values[i+2] or 0
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local b3 = values[i+3] or 0
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local packed = b0 + (b1 * 2^8) + (b2 * 2^16) + (b3 * 2^24)
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local dword_idx = (i-1) // 4
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local nr = dword_idx // GRF_SLOTS
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local off = dword_idx % GRF_SLOTS
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s = s .. string.format("mov(1) r%d.%d<1>UD 0x%xUD {A@1};\n", grf + nr, off, packed)
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end
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return s
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end
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M.mov_grf = function(fmt, grf, values)
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if fmt == "UB" then
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return mov_ub(grf, values)
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end
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local packing = 0
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local dst_type = fmt
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local imm_type = fmt
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if fmt == "HF" then packing = 2
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elseif fmt == "BF" then packing = 2; dst_type = "UW"; imm_type = "UW"
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elseif fmt == "F" then packing = 1
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elseif fmt == "UD" then packing = 1
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else
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error("unsupported format")
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end
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local s = ""
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for i, v in ipairs(values) do
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nr = (i-1) // (GRF_SLOTS * packing)
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off = (i-1) % (GRF_SLOTS * packing)
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s = s .. string.format("mov(1) r%d.%d<1>%s 0x%x%s {A@1};\n", grf + nr, off, dst_type, v, imm_type)
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end
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return s
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end
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M.write_grfs = function(grf, count)
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s = "@id r126\n"
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for i = 1, count do
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s = s .. string.format([[
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@write r126 r%d
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add(16) r126<1>UD r126<1,1,0>UD %dUD {A@1};
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]], grf + i - 1, GRF_SLOTS)
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end
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return s
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end
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return M
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