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Kirill Smelkov
linux
Commits
915203c1
Commit
915203c1
authored
May 14, 2013
by
Alex Deucher
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drm/radeon/dpm: add support for setting UVD clock on rs780
Signed-off-by:
Alex Deucher
<
alexander.deucher@amd.com
>
parent
71de795c
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drivers/gpu/drm/radeon/rs780_dpm.c
drivers/gpu/drm/radeon/rs780_dpm.c
+38
-0
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drivers/gpu/drm/radeon/rs780_dpm.c
View file @
915203c1
...
...
@@ -542,6 +542,40 @@ static void rs780_enable_voltage_scaling(struct radeon_device *rdev,
WREG32_P
(
GFX_MACRO_BYPASS_CNTL
,
0
,
~
SPLL_BYPASS_CNTL
);
}
static
void
rs780_set_uvd_clock_before_set_eng_clock
(
struct
radeon_device
*
rdev
,
struct
radeon_ps
*
new_ps
,
struct
radeon_ps
*
old_ps
)
{
struct
igp_ps
*
new_state
=
rs780_get_ps
(
new_ps
);
struct
igp_ps
*
current_state
=
rs780_get_ps
(
old_ps
);
if
((
new_ps
->
vclk
==
old_ps
->
vclk
)
&&
(
new_ps
->
dclk
==
old_ps
->
dclk
))
return
;
if
(
new_state
->
sclk_high
>=
current_state
->
sclk_high
)
return
;
radeon_set_uvd_clocks
(
rdev
,
new_ps
->
vclk
,
new_ps
->
dclk
);
}
static
void
rs780_set_uvd_clock_after_set_eng_clock
(
struct
radeon_device
*
rdev
,
struct
radeon_ps
*
new_ps
,
struct
radeon_ps
*
old_ps
)
{
struct
igp_ps
*
new_state
=
rs780_get_ps
(
new_ps
);
struct
igp_ps
*
current_state
=
rs780_get_ps
(
old_ps
);
if
((
new_ps
->
vclk
==
old_ps
->
vclk
)
&&
(
new_ps
->
dclk
==
old_ps
->
dclk
))
return
;
if
(
new_state
->
sclk_high
<
current_state
->
sclk_high
)
return
;
radeon_set_uvd_clocks
(
rdev
,
new_ps
->
vclk
,
new_ps
->
dclk
);
}
int
rs780_dpm_enable
(
struct
radeon_device
*
rdev
)
{
struct
igp_power_info
*
pi
=
rs780_get_pi
(
rdev
);
...
...
@@ -611,6 +645,8 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev)
rs780_get_pm_mode_parameters
(
rdev
);
rs780_set_uvd_clock_before_set_eng_clock
(
rdev
,
new_ps
,
old_ps
);
if
(
pi
->
voltage_control
)
{
rs780_force_voltage_to_high
(
rdev
);
mdelay
(
5
);
...
...
@@ -626,6 +662,8 @@ int rs780_dpm_set_power_state(struct radeon_device *rdev)
if
(
pi
->
voltage_control
)
rs780_enable_voltage_scaling
(
rdev
,
new_ps
);
rs780_set_uvd_clock_after_set_eng_clock
(
rdev
,
new_ps
,
old_ps
);
return
0
;
}
...
...
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