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drm/nva3: split pm backend out from nv50

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This will end up quite different, it makes sense for it to be completely
separate.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-09-27 11:18:14 +10:00
parent aee582de80
commit fade7ad56d
5 changed files with 135 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/nouveau/Makefile
View File

@ -10,7 +10,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
nouveau_hw.o nouveau_calc.o nouveau_bios.o nouveau_i2c.o \
nouveau_display.o nouveau_connector.o nouveau_fbcon.o \
nouveau_dp.o nouveau_ramht.o \
nouveau_pm.o nouveau_volt.o nouveau_perf.o \
nouveau_pm.o nouveau_volt.o nouveau_perf.o nouveau_temp.o \
nv04_timer.o \
nv04_mc.o nv40_mc.o nv50_mc.o \
nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o nvc0_fb.o \
@ -25,7 +25,7 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
nv04_crtc.o nv04_display.o nv04_cursor.o nv04_fbcon.o \
nv10_gpio.o nv50_gpio.o \
nv50_calc.o \
nv04_pm.o nv50_pm.o nouveau_temp.o
nv04_pm.o nv50_pm.o nva3_pm.o
nouveau-$(CONFIG_DRM_NOUVEAU_DEBUG) += nouveau_debugfs.o
nouveau-$(CONFIG_COMPAT) += nouveau_ioc32.o

6
drivers/gpu/drm/nouveau/nouveau_pm.h
View File

@ -58,6 +58,12 @@ void *nv50_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
u32 id, int khz);
void nv50_pm_clock_set(struct drm_device *, void *);
/* nva3_pm.c */
int nva3_pm_clock_get(struct drm_device *, u32 id);
void *nva3_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
u32 id, int khz);
void nva3_pm_clock_set(struct drm_device *, void *);
/* nouveau_temp.c */
void nouveau_temp_init(struct drm_device *dev);
void nouveau_temp_fini(struct drm_device *dev);

18
drivers/gpu/drm/nouveau/nouveau_state.c
View File

@ -375,9 +375,21 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
engine->gpio.get = nv50_gpio_get;
engine->gpio.set = nv50_gpio_set;
engine->gpio.irq_enable = nv50_gpio_irq_enable;
engine->pm.clock_get = nv50_pm_clock_get;
engine->pm.clock_pre = nv50_pm_clock_pre;
engine->pm.clock_set = nv50_pm_clock_set;
switch (dev_priv->chipset) {
case 0xa3:
case 0xa5:
case 0xa8:
case 0xaf:
engine->pm.clock_get = nva3_pm_clock_get;
engine->pm.clock_pre = nva3_pm_clock_pre;
engine->pm.clock_set = nva3_pm_clock_set;
break;
default:
engine->pm.clock_get = nv50_pm_clock_get;
engine->pm.clock_pre = nv50_pm_clock_pre;
engine->pm.clock_set = nv50_pm_clock_set;
break;
}
engine->pm.voltage_get = nouveau_voltage_gpio_get;
engine->pm.voltage_set = nouveau_voltage_gpio_set;
if (dev_priv->chipset >= 0x84)

52
drivers/gpu/drm/nouveau/nv50_pm.c
View File

@ -27,12 +27,6 @@
#include "nouveau_bios.h"
#include "nouveau_pm.h"
/*XXX: boards using limits 0x40 need fixing, the register layout
* is correct here, but, there's some other funny magic
* that modifies things, so it's not likely we'll set/read
* the correct timings yet.. working on it...
*/
struct nv50_pm_state {
struct nouveau_pm_level *perflvl;
struct pll_lims pll;
@ -51,21 +45,13 @@ nv50_pm_clock_get(struct drm_device *dev, u32 id)
if (ret)
return ret;
if (pll.vco2.maxfreq) {
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);
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);
}
reg0 = nv_rd32(dev, pll.reg + 4);
P = (reg0 & 0x003f0000) >> 16;
N = (reg0 & 0x0000ff00) >> 8;
M = (reg0 & 0x000000ff);
return pll.refclk * N / M / P;
return ((pll.refclk * N / M) >> P);
}
void *
@ -125,23 +111,19 @@ nv50_pm_clock_set(struct drm_device *dev, void *pre_state)
nouveau_bios_run_init_table(dev, perflvl->memscript, NULL);
}
if (state->pll.vco2.maxfreq) {
if (state->type == PLL_MEMORY) {
nv_wr32(dev, 0x100210, 0);
nv_wr32(dev, 0x1002dc, 1);
}
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);
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);
}
} else {
nv_wr32(dev, reg + 4, (P << 16) | (N << 8) | M);
if (state->type == PLL_MEMORY) {
nv_wr32(dev, 0x1002dc, 0);
nv_wr32(dev, 0x100210, 0x80000000);
}
kfree(state);

95
drivers/gpu/drm/nouveau/nva3_pm.c Normal file
View File

@ -0,0 +1,95 @@
/*
* 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"
/*XXX: boards using limits 0x40 need fixing, the register layout
* is correct here, but, there's some other funny magic
* that modifies things, so it's not likely we'll set/read
* the correct timings yet.. working on it...
*/
struct nva3_pm_state {
struct pll_lims pll;
int N, M, P;
};
int
nva3_pm_clock_get(struct drm_device *dev, u32 id)
{
struct pll_lims pll;
int P, N, M, ret;
u32 reg;
ret = get_pll_limits(dev, id, &pll);
if (ret)
return ret;
reg = nv_rd32(dev, pll.reg + 4);
P = (reg & 0x003f0000) >> 16;
N = (reg & 0x0000ff00) >> 8;
M = (reg & 0x000000ff);
return pll.refclk * N / M / P;
}
void *
nva3_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
u32 id, int khz)
{
struct nva3_pm_state *state;
int dummy, ret;
state = kzalloc(sizeof(*state), GFP_KERNEL);
if (!state)
return ERR_PTR(-ENOMEM);
ret = get_pll_limits(dev, id, &state->pll);
if (ret < 0) {
kfree(state);
return (ret == -ENOENT) ? NULL : ERR_PTR(ret);
}
ret = nv50_calc_pll2(dev, &state->pll, khz, &state->N, &dummy,
&state->M, &state->P);
if (ret < 0) {
kfree(state);
return ERR_PTR(ret);
}
return state;
}
void
nva3_pm_clock_set(struct drm_device *dev, void *pre_state)
{
struct nva3_pm_state *state = pre_state;
u32 reg = state->pll.reg;
nv_wr32(dev, reg + 4, (state->P << 16) | (state->N << 8) | state->M);
kfree(state);
}