redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

drm/radeon/kms: add a power state type based on power state flags

Browse source 
The idea is to flag a power state with a certain type and use
that type to decide on what state to select.  On r6xx+, we
select a state and then transition between clock modes in that
state.  On pre-r6xx, we transition between states directly.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2009-12-23 13:21:58 -05:00 committed by Dave Airlie
parent 845db70da0
commit 0ec0e74f78
4 changed files with 102 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
drivers/gpu/drm/radeon/radeon.h
View file

@ -593,6 +593,14 @@ enum radeon_voltage_type {
VOLTAGE_SW
};
enum radeon_pm_state_type {
POWER_STATE_TYPE_DEFAULT,
POWER_STATE_TYPE_POWERSAVE,
POWER_STATE_TYPE_BATTERY,
POWER_STATE_TYPE_BALANCED,
POWER_STATE_TYPE_PERFORMANCE,
};
struct radeon_voltage {
enum radeon_voltage_type type;
/* gpio voltage */
@ -626,6 +634,7 @@ struct radeon_pm_clock_info {
};
struct radeon_power_state {
enum radeon_pm_state_type type;
/* XXX: use a define for num clock modes */
struct radeon_pm_clock_info clock_info[8];
/* number of valid clock modes in this power state */

78
drivers/gpu/drm/radeon/radeon_atombios.c
View file

@ -1465,7 +1465,25 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.power_state[state_index].clock_info[0].voltage.vddc_id =
power_info->info.asPowerPlayInfo[i].ucVoltageDropIndex;
}
/* order matters! */
if (misc & ATOM_PM_MISCINFO_POWER_SAVING_MODE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_POWERSAVE;
if (misc & ATOM_PM_MISCINFO_DEFAULT_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_DEFAULT_LOW_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_LOAD_BALANCE_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
if (misc & ATOM_PM_MISCINFO_3D_ACCELERATION_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_PERFORMANCE;
if (misc & ATOM_PM_MISCINFO_DRIVER_DEFAULT_MODE) {
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
rdev->pm.current_power_state = &rdev->pm.power_state[state_index];
rdev->pm.power_state[state_index].default_clock_mode =
@ -1513,7 +1531,28 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.power_state[state_index].clock_info[0].voltage.vddc_id =
power_info->info_2.asPowerPlayInfo[i].ucVoltageDropIndex;
}
/* order matters! */
if (misc & ATOM_PM_MISCINFO_POWER_SAVING_MODE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_POWERSAVE;
if (misc & ATOM_PM_MISCINFO_DEFAULT_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_DEFAULT_LOW_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_LOAD_BALANCE_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
if (misc & ATOM_PM_MISCINFO_3D_ACCELERATION_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_PERFORMANCE;
if (misc2 & ATOM_PM_MISCINFO2_SYSTEM_AC_LITE_MODE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
if (misc & ATOM_PM_MISCINFO_DRIVER_DEFAULT_MODE) {
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
rdev->pm.current_power_state = &rdev->pm.power_state[state_index];
rdev->pm.power_state[state_index].default_clock_mode =
@ -1567,7 +1606,28 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
power_info->info_3.asPowerPlayInfo[i].ucVDDCI_VoltageDropIndex;
}
}
/* order matters! */
if (misc & ATOM_PM_MISCINFO_POWER_SAVING_MODE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_POWERSAVE;
if (misc & ATOM_PM_MISCINFO_DEFAULT_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_DEFAULT_LOW_DC_STATE_ENTRY_TRUE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
if (misc & ATOM_PM_MISCINFO_LOAD_BALANCE_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
if (misc & ATOM_PM_MISCINFO_3D_ACCELERATION_EN)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_PERFORMANCE;
if (misc2 & ATOM_PM_MISCINFO2_SYSTEM_AC_LITE_MODE)
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
if (misc & ATOM_PM_MISCINFO_DRIVER_DEFAULT_MODE) {
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
rdev->pm.current_power_state = &rdev->pm.power_state[state_index];
rdev->pm.power_state[state_index].default_clock_mode =
@ -1655,7 +1715,23 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.power_state[state_index].non_clock_info.pcie_lanes =
((misc & ATOM_PPLIB_PCIE_LINK_WIDTH_MASK) >>
ATOM_PPLIB_PCIE_LINK_WIDTH_SHIFT) + 1;
switch (misc2 & ATOM_PPLIB_CLASSIFICATION_UI_MASK) {
case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY:
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
break;
case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED:
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BALANCED;
break;
case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE:
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_PERFORMANCE;
break;
}
if (misc2 & ATOM_PPLIB_CLASSIFICATION_BOOT) {
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.default_power_state = &rdev->pm.power_state[state_index];
rdev->pm.current_power_state = &rdev->pm.power_state[state_index];
rdev->pm.power_state[state_index].default_clock_mode =
@ -1673,6 +1749,8 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
if (rdev->pm.default_power_state == NULL) {
/* add the default mode */
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.power_state[state_index].num_clock_modes = 1;
rdev->pm.power_state[state_index].clock_info[0].mclk = rdev->clock.default_mclk;
rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;

4
drivers/gpu/drm/radeon/radeon_combios.c
View file

@ -2406,6 +2406,8 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
(rdev->pm.power_state[state_index].clock_info[0].sclk >
rdev->clock.default_sclk))
goto default_mode;
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_BATTERY;
misc = RBIOS16(offset + 0x5 + 0x0);
if (rev > 4)
misc2 = RBIOS16(offset + 0x5 + 0xe);
@ -2467,6 +2469,8 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
default_mode:
/* add the default mode */
rdev->pm.power_state[state_index].type =
POWER_STATE_TYPE_DEFAULT;
rdev->pm.power_state[state_index].num_clock_modes = 1;
rdev->pm.power_state[state_index].clock_info[0].mclk = rdev->clock.default_mclk;
rdev->pm.power_state[state_index].clock_info[0].sclk = rdev->clock.default_sclk;

12
drivers/gpu/drm/radeon/radeon_pm.c
View file

@ -40,6 +40,14 @@ static const char *pm_state_names[4] = {
"PM_STATE_ACTIVE"
};
static const char *pm_state_types[5] = {
"Default",
"Powersave",
"Battery",
"Balanced",
"Performance",
};
static void radeon_print_power_mode_info(struct radeon_device *rdev)
{
int i, j;
@ -51,7 +59,9 @@ static void radeon_print_power_mode_info(struct radeon_device *rdev)
is_default = true;
else
is_default = false;
DRM_INFO("State %d %s\n", i, is_default ? "(default)" : "");
DRM_INFO("State %d %s %s\n", i,
pm_state_types[rdev->pm.power_state[i].type],
is_default ? "(default)" : "");
if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
DRM_INFO("\t%d PCIE Lanes\n", rdev->pm.power_state[i].non_clock_info.pcie_lanes);
DRM_INFO("\t%d Clock Mode(s)\n", rdev->pm.power_state[i].num_clock_modes);