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drm/nouveau: restore perflvl on resume, and restore boot perflvl on unload 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-09-17 13:35:25 +10:00
parent 6f876986be
commit 64f1c11a47
3 changed files with 49 additions and 19 deletions
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3
drivers/gpu/drm/nouveau/nouveau_drv.c
View File

@ -31,6 +31,7 @@
#include "nouveau_hw.h"
#include "nouveau_fb.h"
#include "nouveau_fbcon.h"
#include "nouveau_pm.h"
#include "nv50_display.h"
#include "drm_pciids.h"
@ -279,6 +280,8 @@ nouveau_pci_resume(struct pci_dev *pdev)
if (ret)
return ret;
nouveau_pm_resume(dev);
if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
ret = nouveau_mem_init_agp(dev);
if (ret) {

64
drivers/gpu/drm/nouveau/nouveau_pm.c
View File

@ -46,13 +46,39 @@ nouveau_pm_clock_set(struct drm_device *dev, u8 id, u32 khz)
return 0;
}
static int
nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
int ret;
if (perflvl == pm->cur)
return 0;
if (pm->voltage.supported && pm->voltage_set && perflvl->voltage) {
ret = pm->voltage_set(dev, perflvl->voltage);
if (ret) {
NV_ERROR(dev, "voltage_set %d failed: %d\n",
perflvl->voltage, ret);
}
}
nouveau_pm_clock_set(dev, PLL_CORE, perflvl->core);
nouveau_pm_clock_set(dev, PLL_SHADER, perflvl->shader);
nouveau_pm_clock_set(dev, PLL_MEMORY, perflvl->memory);
nouveau_pm_clock_set(dev, PLL_UNK05, perflvl->unk05);
pm->cur = perflvl;
return 0;
}
static int
nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_level *perflvl = NULL;
int ret;
/* safety precaution, for now */
if (nouveau_perflvl_wr != 7777)
@ -78,25 +104,8 @@ nouveau_pm_profile_set(struct drm_device *dev, const char *profile)
return -EINVAL;
}
if (perflvl == pm->cur)
return 0;
NV_INFO(dev, "setting performance level: %s\n", profile);
if (pm->voltage.supported && pm->voltage_set && perflvl->voltage) {
ret = pm->voltage_set(dev, perflvl->voltage);
if (ret) {
NV_ERROR(dev, "voltage_set %d failed: %d\n",
perflvl->voltage, ret);
}
}
nouveau_pm_clock_set(dev, PLL_CORE, perflvl->core);
nouveau_pm_clock_set(dev, PLL_SHADER, perflvl->shader);
nouveau_pm_clock_set(dev, PLL_MEMORY, perflvl->memory);
nouveau_pm_clock_set(dev, PLL_UNK05, perflvl->unk05);
pm->cur = perflvl;
return 0;
return nouveau_pm_perflvl_set(dev, perflvl);
}
static int
@ -285,6 +294,9 @@ nouveau_pm_fini(struct drm_device *dev)
struct device *d = &dev->pdev->dev;
int i;
if (pm->cur != &pm->boot)
nouveau_pm_perflvl_set(dev, &pm->boot);
device_remove_file(d, &dev_attr_performance_level);
for (i = 0; i < pm->nr_perflvl; i++) {
struct nouveau_pm_level *pl = &pm->perflvl[i];
@ -299,3 +311,17 @@ nouveau_pm_fini(struct drm_device *dev)
nouveau_volt_fini(dev);
}
void
nouveau_pm_resume(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
struct nouveau_pm_level *perflvl;
if (pm->cur == &pm->boot)
return;
perflvl = pm->cur;
pm->cur = &pm->boot;
nouveau_pm_perflvl_set(dev, perflvl);
}

1
drivers/gpu/drm/nouveau/nouveau_pm.h
View File

@ -28,6 +28,7 @@
/* nouveau_pm.c */
int nouveau_pm_init(struct drm_device *dev);
void nouveau_pm_fini(struct drm_device *dev);
void nouveau_pm_resume(struct drm_device *dev);
/* nouveau_volt.c */
void nouveau_volt_init(struct drm_device *);