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linux-pinenote/drivers/gpu/drm/nouveau/nvkm/subdev/bios/timing.c
Ben Skeggs d390b48027 drm/nouveau/bios: namespace + nvidia gpu names (no binary change) 
The namespace of NVKM is being changed to nvkm_ instead of nouveau_,
which will be used for the DRM part of the driver.  This is being
done in order to make it very clear as to what part of the driver a
given symbol belongs to, and as a minor step towards splitting the
DRM driver out to be able to stand on its own (for virt).

Because there's already a large amount of churn here anyway, this is
as good a time as any to also switch to NVIDIA's device and chipset
naming to ease collaboration with them.

A comparison of objdump disassemblies proves no code changes.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-01-22 12:17:50 +10:00

166 lines
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/*
* Copyright 2013 Red Hat Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 Skeggs
*/
#include <subdev/bios.h>
#include <subdev/bios/bit.h>
#include <subdev/bios/timing.h>
u16
nvbios_timingTe(struct nvkm_bios *bios,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
{
struct bit_entry bit_P;
u16 timing = 0x0000;
if (!bit_entry(bios, 'P', &bit_P)) {
if (bit_P.version == 1)
timing = nv_ro16(bios, bit_P.offset + 4);
else
if (bit_P.version == 2)
timing = nv_ro16(bios, bit_P.offset + 8);
if (timing) {
*ver = nv_ro08(bios, timing + 0);
switch (*ver) {
case 0x10:
*hdr = nv_ro08(bios, timing + 1);
*cnt = nv_ro08(bios, timing + 2);
*len = nv_ro08(bios, timing + 3);
*snr = 0;
*ssz = 0;
return timing;
case 0x20:
*hdr = nv_ro08(bios, timing + 1);
*cnt = nv_ro08(bios, timing + 5);
*len = nv_ro08(bios, timing + 2);
*snr = nv_ro08(bios, timing + 4);
*ssz = nv_ro08(bios, timing + 3);
return timing;
default:
break;
}
}
}
return 0x0000;
}
u16
nvbios_timingEe(struct nvkm_bios *bios, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
{
u8 snr, ssz;
u16 timing = nvbios_timingTe(bios, ver, hdr, cnt, len, &snr, &ssz);
if (timing && idx < *cnt) {
timing += *hdr + idx * (*len + (snr * ssz));
*hdr = *len;
*cnt = snr;
*len = ssz;
return timing;
}
return 0x0000;
}
u16
nvbios_timingEp(struct nvkm_bios *bios, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_ramcfg *p)
{
u16 data = nvbios_timingEe(bios, idx, ver, hdr, cnt, len), temp;
p->timing_ver = *ver;
p->timing_hdr = *hdr;
switch (!!data * *ver) {
case 0x10:
p->timing_10_WR = nv_ro08(bios, data + 0x00);
p->timing_10_WTR = nv_ro08(bios, data + 0x01);
p->timing_10_CL = nv_ro08(bios, data + 0x02);
p->timing_10_RC = nv_ro08(bios, data + 0x03);
p->timing_10_RFC = nv_ro08(bios, data + 0x05);
p->timing_10_RAS = nv_ro08(bios, data + 0x07);
p->timing_10_RP = nv_ro08(bios, data + 0x09);
p->timing_10_RCDRD = nv_ro08(bios, data + 0x0a);
p->timing_10_RCDWR = nv_ro08(bios, data + 0x0b);
p->timing_10_RRD = nv_ro08(bios, data + 0x0c);
p->timing_10_13 = nv_ro08(bios, data + 0x0d);
p->timing_10_ODT = nv_ro08(bios, data + 0x0e) & 0x07;
p->timing_10_24 = 0xff;
p->timing_10_21 = 0;
p->timing_10_20 = 0;
p->timing_10_CWL = 0;
p->timing_10_18 = 0;
p->timing_10_16 = 0;
switch (min_t(u8, *hdr, 25)) {
case 25:
p->timing_10_24 = nv_ro08(bios, data + 0x18);
case 24:
case 23:
case 22:
p->timing_10_21 = nv_ro08(bios, data + 0x15);
case 21:
p->timing_10_20 = nv_ro08(bios, data + 0x14);
case 20:
p->timing_10_CWL = nv_ro08(bios, data + 0x13);
case 19:
p->timing_10_18 = nv_ro08(bios, data + 0x12);
case 18:
case 17:
p->timing_10_16 = nv_ro08(bios, data + 0x10);
}
break;
case 0x20:
p->timing[0] = nv_ro32(bios, data + 0x00);
p->timing[1] = nv_ro32(bios, data + 0x04);
p->timing[2] = nv_ro32(bios, data + 0x08);
p->timing[3] = nv_ro32(bios, data + 0x0c);
p->timing[4] = nv_ro32(bios, data + 0x10);
p->timing[5] = nv_ro32(bios, data + 0x14);
p->timing[6] = nv_ro32(bios, data + 0x18);
p->timing[7] = nv_ro32(bios, data + 0x1c);
p->timing[8] = nv_ro32(bios, data + 0x20);
p->timing[9] = nv_ro32(bios, data + 0x24);
p->timing[10] = nv_ro32(bios, data + 0x28);
p->timing_20_2e_03 = (nv_ro08(bios, data + 0x2e) & 0x03) >> 0;
p->timing_20_2e_30 = (nv_ro08(bios, data + 0x2e) & 0x30) >> 4;
p->timing_20_2e_c0 = (nv_ro08(bios, data + 0x2e) & 0xc0) >> 6;
p->timing_20_2f_03 = (nv_ro08(bios, data + 0x2f) & 0x03) >> 0;
temp = nv_ro16(bios, data + 0x2c);
p->timing_20_2c_003f = (temp & 0x003f) >> 0;
p->timing_20_2c_1fc0 = (temp & 0x1fc0) >> 6;
p->timing_20_30_07 = (nv_ro08(bios, data + 0x30) & 0x07) >> 0;
p->timing_20_30_f8 = (nv_ro08(bios, data + 0x30) & 0xf8) >> 3;
temp = nv_ro16(bios, data + 0x31);
p->timing_20_31_0007 = (temp & 0x0007) >> 0;
p->timing_20_31_0078 = (temp & 0x0078) >> 3;
p->timing_20_31_0780 = (temp & 0x0780) >> 7;
p->timing_20_31_0800 = (temp & 0x0800) >> 11;
p->timing_20_31_7000 = (temp & 0x7000) >> 12;
p->timing_20_31_8000 = (temp & 0x8000) >> 15;
break;
default:
data = 0;
break;
}
return data;
}
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