fade7ad56d
This will end up quite different, it makes sense for it to be completely separate. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
132 lines
3.4 KiB
C
132 lines
3.4 KiB
C
/*
|
|
* Copyright 2010 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 "drmP.h"
|
|
#include "nouveau_drv.h"
|
|
#include "nouveau_bios.h"
|
|
#include "nouveau_pm.h"
|
|
|
|
struct nv50_pm_state {
|
|
struct nouveau_pm_level *perflvl;
|
|
struct pll_lims pll;
|
|
enum pll_types type;
|
|
int N, M, P;
|
|
};
|
|
|
|
int
|
|
nv50_pm_clock_get(struct drm_device *dev, u32 id)
|
|
{
|
|
struct pll_lims pll;
|
|
int P, N, M, ret;
|
|
u32 reg0, reg1;
|
|
|
|
ret = get_pll_limits(dev, id, &pll);
|
|
if (ret)
|
|
return ret;
|
|
|
|
reg0 = nv_rd32(dev, pll.reg + 0);
|
|
reg1 = nv_rd32(dev, pll.reg + 4);
|
|
P = (reg0 & 0x00070000) >> 16;
|
|
N = (reg1 & 0x0000ff00) >> 8;
|
|
M = (reg1 & 0x000000ff);
|
|
|
|
return ((pll.refclk * N / M) >> P);
|
|
}
|
|
|
|
void *
|
|
nv50_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
|
|
u32 id, int khz)
|
|
{
|
|
struct nv50_pm_state *state;
|
|
int dummy, ret;
|
|
|
|
state = kzalloc(sizeof(*state), GFP_KERNEL);
|
|
if (!state)
|
|
return ERR_PTR(-ENOMEM);
|
|
state->type = id;
|
|
state->perflvl = perflvl;
|
|
|
|
ret = get_pll_limits(dev, id, &state->pll);
|
|
if (ret < 0) {
|
|
kfree(state);
|
|
return (ret == -ENOENT) ? NULL : ERR_PTR(ret);
|
|
}
|
|
|
|
ret = nv50_calc_pll(dev, &state->pll, khz, &state->N, &state->M,
|
|
&dummy, &dummy, &state->P);
|
|
if (ret < 0) {
|
|
kfree(state);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
return state;
|
|
}
|
|
|
|
void
|
|
nv50_pm_clock_set(struct drm_device *dev, void *pre_state)
|
|
{
|
|
struct nv50_pm_state *state = pre_state;
|
|
struct nouveau_pm_level *perflvl = state->perflvl;
|
|
u32 reg = state->pll.reg, tmp;
|
|
struct bit_entry BIT_M;
|
|
u16 script;
|
|
int N = state->N;
|
|
int M = state->M;
|
|
int P = state->P;
|
|
|
|
if (state->type == PLL_MEMORY && perflvl->memscript &&
|
|
bit_table(dev, 'M', &BIT_M) == 0 &&
|
|
BIT_M.version == 1 && BIT_M.length >= 0x0b) {
|
|
script = ROM16(BIT_M.data[0x05]);
|
|
if (script)
|
|
nouveau_bios_run_init_table(dev, script, NULL);
|
|
script = ROM16(BIT_M.data[0x07]);
|
|
if (script)
|
|
nouveau_bios_run_init_table(dev, script, NULL);
|
|
script = ROM16(BIT_M.data[0x09]);
|
|
if (script)
|
|
nouveau_bios_run_init_table(dev, script, NULL);
|
|
|
|
nouveau_bios_run_init_table(dev, perflvl->memscript, NULL);
|
|
}
|
|
|
|
if (state->type == PLL_MEMORY) {
|
|
nv_wr32(dev, 0x100210, 0);
|
|
nv_wr32(dev, 0x1002dc, 1);
|
|
}
|
|
|
|
tmp = nv_rd32(dev, reg + 0) & 0xfff8ffff;
|
|
tmp |= 0x80000000 | (P << 16);
|
|
nv_wr32(dev, reg + 0, tmp);
|
|
nv_wr32(dev, reg + 4, (N << 8) | M);
|
|
|
|
if (state->type == PLL_MEMORY) {
|
|
nv_wr32(dev, 0x1002dc, 0);
|
|
nv_wr32(dev, 0x100210, 0x80000000);
|
|
}
|
|
|
|
kfree(state);
|
|
}
|
|
|