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/*
* Copyright © 2011 Intel Corporation
*
* 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.
*
* Authors:
* Ben Widawsky <ben@bwidawsk.net>
*
*/
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <sys/types.h>
#include "intel_io.h"
#include "intel_chipset.h"
static struct intel_register_range gen_bwcl_register_map[] = {
{0x00000000, 0x00000fff, INTEL_RANGE_RW},
{0x00001000, 0x00000fff, INTEL_RANGE_RSVD},
{0x00002000, 0x00000fff, INTEL_RANGE_RW},
{0x00003000, 0x000001ff, INTEL_RANGE_RW},
{0x00003200, 0x00000dff, INTEL_RANGE_RW},
{0x00004000, 0x000003ff, INTEL_RANGE_RSVD},
{0x00004400, 0x00000bff, INTEL_RANGE_RSVD},
{0x00005000, 0x00000fff, INTEL_RANGE_RW},
{0x00006000, 0x00000fff, INTEL_RANGE_RW},
{0x00007000, 0x000003ff, INTEL_RANGE_RW},
{0x00007400, 0x000014ff, INTEL_RANGE_RW},
{0x00008900, 0x000006ff, INTEL_RANGE_RSVD},
{0x00009000, 0x00000fff, INTEL_RANGE_RSVD},
{0x0000a000, 0x00000fff, INTEL_RANGE_RW},
{0x0000b000, 0x00004fff, INTEL_RANGE_RSVD},
{0x00010000, 0x00003fff, INTEL_RANGE_RW},
{0x00014000, 0x0001bfff, INTEL_RANGE_RSVD},
{0x00030000, 0x0000ffff, INTEL_RANGE_RW},
{0x00040000, 0x0001ffff, INTEL_RANGE_RSVD},
{0x00060000, 0x0000ffff, INTEL_RANGE_RW},
{0x00070000, 0x00002fff, INTEL_RANGE_RW},
{0x00073000, 0x00000fff, INTEL_RANGE_RW},
{0x00074000, 0x0000bfff, INTEL_RANGE_RSVD},
{0x00000000, 0x00000000, INTEL_RANGE_END}
};
static struct intel_register_range gen4_register_map[] = {
{0x00000000, 0x00000fff, INTEL_RANGE_RW},
{0x00001000, 0x00000fff, INTEL_RANGE_RSVD},
{0x00002000, 0x00000fff, INTEL_RANGE_RW},
{0x00003000, 0x000001ff, INTEL_RANGE_RW},
{0x00003200, 0x00000dff, INTEL_RANGE_RW},
{0x00004000, 0x000003ff, INTEL_RANGE_RW},
{0x00004400, 0x00000bff, INTEL_RANGE_RW},
{0x00005000, 0x00000fff, INTEL_RANGE_RW},
{0x00006000, 0x00000fff, INTEL_RANGE_RW},
{0x00007000, 0x000003ff, INTEL_RANGE_RW},
{0x00007400, 0x000014ff, INTEL_RANGE_RW},
{0x00008900, 0x000006ff, INTEL_RANGE_RSVD},
{0x00009000, 0x00000fff, INTEL_RANGE_RSVD},
{0x0000a000, 0x00000fff, INTEL_RANGE_RW},
{0x0000b000, 0x00004fff, INTEL_RANGE_RSVD},
{0x00010000, 0x00003fff, INTEL_RANGE_RW},
{0x00014000, 0x0001bfff, INTEL_RANGE_RSVD},
{0x00030000, 0x0000ffff, INTEL_RANGE_RW},
{0x00040000, 0x0001ffff, INTEL_RANGE_RSVD},
{0x00060000, 0x0000ffff, INTEL_RANGE_RW},
{0x00070000, 0x00002fff, INTEL_RANGE_RW},
{0x00073000, 0x00000fff, INTEL_RANGE_RW},
{0x00074000, 0x0000bfff, INTEL_RANGE_RSVD},
{0x00000000, 0x00000000, INTEL_RANGE_END}
};
/* The documentation is a little sketchy on these register ranges. */
static struct intel_register_range gen6_gt_register_map[] = {
{0x00000000, 0x00000fff, INTEL_RANGE_RW},
{0x00001000, 0x00000fff, INTEL_RANGE_RSVD},
{0x00002000, 0x00000fff, INTEL_RANGE_RW},
{0x00003000, 0x000001ff, INTEL_RANGE_RW},
{0x00003200, 0x00000dff, INTEL_RANGE_RW},
{0x00004000, 0x00000fff, INTEL_RANGE_RW},
{0x00005000, 0x0000017f, INTEL_RANGE_RW},
{0x00005180, 0x00000e7f, INTEL_RANGE_RW},
{0x00006000, 0x00001fff, INTEL_RANGE_RW},
{0x00008000, 0x000007ff, INTEL_RANGE_RW},
{0x00008800, 0x000000ff, INTEL_RANGE_RSVD},
{0x00008900, 0x000006ff, INTEL_RANGE_RW},
{0x00009000, 0x00000fff, INTEL_RANGE_RSVD},
{0x0000a000, 0x00000fff, INTEL_RANGE_RW},
{0x0000b000, 0x00004fff, INTEL_RANGE_RSVD},
{0x00010000, 0x00001fff, INTEL_RANGE_RW},
{0x00012000, 0x000003ff, INTEL_RANGE_RW},
{0x00012400, 0x00000bff, INTEL_RANGE_RW},
{0x00013000, 0x00000fff, INTEL_RANGE_RW},
{0x00014000, 0x00000fff, INTEL_RANGE_RW},
{0x00015000, 0x0000cfff, INTEL_RANGE_RW},
{0x00022000, 0x00000fff, INTEL_RANGE_RW},
{0x00023000, 0x00000fff, INTEL_RANGE_RSVD},
{0x00024000, 0x00000fff, INTEL_RANGE_RW},
{0x00025000, 0x0000afff, INTEL_RANGE_RSVD},
{0x00030000, 0x0000ffff, INTEL_RANGE_RW},
{0x00040000, 0x0000ffff, INTEL_RANGE_RW},
{0x00050000, 0x0000ffff, INTEL_RANGE_RW},
{0x00060000, 0x0000ffff, INTEL_RANGE_RW},
{0x00070000, 0x00003fff, INTEL_RANGE_RW},
{0x00074000, 0x0008bfff, INTEL_RANGE_RSVD},
{0x00100000, 0x00007fff, INTEL_RANGE_RW},
{0x00108000, 0x00037fff, INTEL_RANGE_RSVD},
{0x00140000, 0x0003ffff, INTEL_RANGE_RW},
{0x00000000, 0x00000000, INTEL_RANGE_END}
};
struct intel_register_map
intel_get_register_map(uint32_t devid)
{
struct intel_register_map map;
const int gen = intel_gen(devid);
if (gen >= 6) {
map.map = gen6_gt_register_map;
map.top = 0x180000;
} else if (IS_BROADWATER(devid) || IS_CRESTLINE(devid)) {
map.map = gen_bwcl_register_map;
map.top = 0x80000;
} else if (gen >= 4) {
map.map = gen4_register_map;
map.top = 0x80000;
} else {
fprintf(stderr, "Gen2/3 Ranges are not supported. Please use "
"unsafe access.");
abort();
}
map.alignment_mask = 0x3;
return map;
}
struct intel_register_range *
intel_get_register_range(struct intel_register_map map, uint32_t offset, uint32_t mode)
{
struct intel_register_range *range = map.map;
uint32_t align = map.alignment_mask;
if (offset & map.alignment_mask)
return NULL;
if (offset >= map.top)
return NULL;
while (!(range->flags & INTEL_RANGE_END)) {
/* list is assumed to be in order */
if (offset < range->base)
break;
if ( (offset >= range->base) &&
(offset + align) <= (range->base + range->size)) {
if ((mode & range->flags) == mode)
return range;
}
range++;
}
return NULL;
}
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