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49981891f7
Signed-off-by: Jason Ekstrand <jason@jlekstrand.net> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
90 lines
2.9 KiB
C
90 lines
2.9 KiB
C
/*
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* Copyright (c) 2015 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <stdio.h>
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#include "gen_device_info.h"
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/**
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* Chunk of L3 cache reserved for some specific purpose.
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*/
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enum gen_l3_partition {
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/** Shared local memory. */
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GEN_L3P_SLM = 0,
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/** Unified return buffer. */
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GEN_L3P_URB,
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/** Union of DC and RO. */
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GEN_L3P_ALL,
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/** Data cluster RW partition. */
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GEN_L3P_DC,
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/** Union of IS, C and T. */
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GEN_L3P_RO,
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/** Instruction and state cache. */
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GEN_L3P_IS,
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/** Constant cache. */
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GEN_L3P_C,
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/** Texture cache. */
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GEN_L3P_T,
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/** Number of supported L3 partitions. */
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GEN_NUM_L3P
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};
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/**
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* L3 configuration represented as the number of ways allocated for each
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* partition. \sa get_l3_way_size().
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*/
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struct gen_l3_config {
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unsigned n[GEN_NUM_L3P];
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};
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/**
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* L3 configuration represented as a vector of weights giving the desired
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* relative size of each partition. The scale is arbitrary, only the ratios
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* between weights will have an influence on the selection of the closest L3
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* configuration.
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*/
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struct gen_l3_weights {
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float w[GEN_NUM_L3P];
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};
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float gen_diff_l3_weights(struct gen_l3_weights w0, struct gen_l3_weights w1);
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struct gen_l3_weights
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gen_get_default_l3_weights(const struct gen_device_info *devinfo,
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bool needs_dc, bool needs_slm);
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struct gen_l3_weights
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gen_get_l3_config_weights(const struct gen_l3_config *cfg);
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const struct gen_l3_config *
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gen_get_default_l3_config(const struct gen_device_info *devinfo);
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const struct gen_l3_config *
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gen_get_l3_config(const struct gen_device_info *devinfo,
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struct gen_l3_weights w0);
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unsigned
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gen_get_l3_config_urb_size(const struct gen_device_info *devinfo,
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const struct gen_l3_config *cfg);
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void gen_dump_l3_config(const struct gen_l3_config *cfg, FILE *fp);
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