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drm/nouveau/bios: add support for parsing table at BIT 'M' v2 + 0x05

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-09-01 15:33:14 +10:00
parent 299dea4e0e
commit 7500bb7eb4
3 changed files with 170 additions and 1 deletions
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3
drivers/gpu/drm/nouveau/Makefile
View file

@ -38,6 +38,7 @@ nouveau-y += core/subdev/bios/dcb.o
nouveau-y += core/subdev/bios/disp.o
nouveau-y += core/subdev/bios/dp.o
nouveau-y += core/subdev/bios/extdev.o
nouveau-y += core/subdev/bios/fan.o
nouveau-y += core/subdev/bios/gpio.o
nouveau-y += core/subdev/bios/i2c.o
nouveau-y += core/subdev/bios/init.o
@ -51,8 +52,8 @@ nouveau-y += core/subdev/bios/therm.o
nouveau-y += core/subdev/bios/vmap.o
nouveau-y += core/subdev/bios/volt.o
nouveau-y += core/subdev/bios/xpio.o
nouveau-y += core/subdev/bios/M0205.o
nouveau-y += core/subdev/bios/P0260.o
nouveau-y += core/subdev/bios/fan.o
nouveau-y += core/subdev/bus/hwsq.o
nouveau-y += core/subdev/bus/nv04.o
nouveau-y += core/subdev/bus/nv31.o

32
drivers/gpu/drm/nouveau/core/include/subdev/bios/M0205.h Normal file
View file

@ -0,0 +1,32 @@
#ifndef __NVBIOS_M0205_H__
#define __NVBIOS_M0205_H__
struct nvbios_M0205T {
u16 freq;
};
u32 nvbios_M0205Te(struct nouveau_bios *,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz);
u32 nvbios_M0205Tp(struct nouveau_bios *,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz,
struct nvbios_M0205T *);
struct nvbios_M0205E {
u8 type;
};
u32 nvbios_M0205Ee(struct nouveau_bios *, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len);
u32 nvbios_M0205Ep(struct nouveau_bios *, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
struct nvbios_M0205E *);
struct nvbios_M0205S {
u8 data;
};
u32 nvbios_M0205Se(struct nouveau_bios *, int ent, int idx, u8 *ver, u8 *hdr);
u32 nvbios_M0205Sp(struct nouveau_bios *, int ent, int idx, u8 *ver, u8 *hdr,
struct nvbios_M0205S *);
#endif

136
drivers/gpu/drm/nouveau/core/subdev/bios/M0205.c Normal file
View file

@ -0,0 +1,136 @@
/*
* 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/M0205.h>
u32
nvbios_M0205Te(struct nouveau_bios *bios,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz)
{
struct bit_entry bit_M;
u32 data = 0x00000000;
if (!bit_entry(bios, 'M', &bit_M)) {
if (bit_M.version == 2 && bit_M.length > 0x08)
data = nv_ro32(bios, bit_M.offset + 0x05);
if (data) {
*ver = nv_ro08(bios, data + 0x00);
switch (*ver) {
case 0x10:
*hdr = nv_ro08(bios, data + 0x01);
*len = nv_ro08(bios, data + 0x02);
*ssz = nv_ro08(bios, data + 0x03);
*snr = nv_ro08(bios, data + 0x04);
*cnt = nv_ro08(bios, data + 0x05);
return data;
default:
break;
}
}
}
return 0x00000000;
}
u32
nvbios_M0205Tp(struct nouveau_bios *bios,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *snr, u8 *ssz,
struct nvbios_M0205T *info)
{
u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, snr, ssz);
memset(info, 0x00, sizeof(*info));
switch (!!data * *ver) {
case 0x10:
info->freq = nv_ro16(bios, data + 0x06);
break;
default:
break;
}
return data;
}
u32
nvbios_M0205Ee(struct nouveau_bios *bios, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len)
{
u8 snr, ssz;
u32 data = nvbios_M0205Te(bios, ver, hdr, cnt, len, &snr, &ssz);
if (data && idx < *cnt) {
data = data + *hdr + idx * (*len + (snr * ssz));
*hdr = *len;
*cnt = snr;
*len = ssz;
return data;
}
return 0x00000000;
}
u32
nvbios_M0205Ep(struct nouveau_bios *bios, int idx,
u8 *ver, u8 *hdr, u8 *cnt, u8 *len,
struct nvbios_M0205E *info)
{
u32 data = nvbios_M0205Ee(bios, idx, ver, hdr, cnt, len);
memset(info, 0x00, sizeof(*info));
switch (!!data * *ver) {
case 0x10:
info->type = nv_ro08(bios, data + 0x00) & 0x0f;
return data;
default:
break;
}
return 0x00000000;
}
u32
nvbios_M0205Se(struct nouveau_bios *bios, int ent, int idx, u8 *ver, u8 *hdr)
{
u8 cnt, len;
u32 data = nvbios_M0205Ee(bios, ent, ver, hdr, &cnt, &len);
if (data && idx < cnt) {
data = data + *hdr + idx * len;
*hdr = len;
return data;
}
return 0x00000000;
}
u32
nvbios_M0205Sp(struct nouveau_bios *bios, int ent, int idx, u8 *ver, u8 *hdr,
struct nvbios_M0205S *info)
{
u32 data = nvbios_M0205Se(bios, ent, idx, ver, hdr);
memset(info, 0x00, sizeof(*info));
switch (!!data * *ver) {
case 0x10:
info->data = nv_ro08(bios, data + 0x00);
return data;
default:
break;
}
return 0x00000000;
}