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drm/radeon: add radeon_atom_get_clock_dividers helper 

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2013-04-08 12:41:31 +02:00 committed by Alex Deucher
parent 73afc70d11
commit 7062ab67d4
3 changed files with 135 additions and 0 deletions
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5
drivers/gpu/drm/radeon/radeon.h
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@ -206,6 +206,11 @@ void radeon_pm_suspend(struct radeon_device *rdev);
void radeon_pm_resume(struct radeon_device *rdev);
void radeon_combios_get_power_modes(struct radeon_device *rdev);
void radeon_atombios_get_power_modes(struct radeon_device *rdev);
int radeon_atom_get_clock_dividers(struct radeon_device *rdev,
u8 clock_type,
u32 clock,
bool strobe_mode,
struct atom_clock_dividers *dividers);
void radeon_atom_set_voltage(struct radeon_device *rdev, u16 voltage_level, u8 voltage_type);
void rs690_pm_info(struct radeon_device *rdev);
extern int rv6xx_get_temp(struct radeon_device *rdev);

107
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -2654,6 +2654,113 @@ void radeon_atombios_get_power_modes(struct radeon_device *rdev)
rdev->pm.current_vddc = 0;
}
union get_clock_dividers {
struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
};
int radeon_atom_get_clock_dividers(struct radeon_device *rdev,
u8 clock_type,
u32 clock,
bool strobe_mode,
struct atom_clock_dividers *dividers)
{
union get_clock_dividers args;
int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
u8 frev, crev;
memset(&args, 0, sizeof(args));
memset(dividers, 0, sizeof(struct atom_clock_dividers));
if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
return -EINVAL;
switch (crev) {
case 1:
/* r4xx, r5xx */
args.v1.ucAction = clock_type;
args.v1.ulClock = cpu_to_le32(clock); /* 10 khz */
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
dividers->post_div = args.v1.ucPostDiv;
dividers->fb_div = args.v1.ucFbDiv;
dividers->enable_post_div = true;
break;
case 2:
case 3:
/* r6xx, r7xx, evergreen, ni */
if (rdev->family <= CHIP_RV770) {
args.v2.ucAction = clock_type;
args.v2.ulClock = cpu_to_le32(clock); /* 10 khz */
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
dividers->post_div = args.v2.ucPostDiv;
dividers->fb_div = le16_to_cpu(args.v2.usFbDiv);
dividers->ref_div = args.v2.ucAction;
if (rdev->family == CHIP_RV770) {
dividers->enable_post_div = (le32_to_cpu(args.v2.ulClock) & (1 << 24)) ?
true : false;
dividers->vco_mode = (le32_to_cpu(args.v2.ulClock) & (1 << 25)) ? 1 : 0;
} else
dividers->enable_post_div = (dividers->fb_div & 1) ? true : false;
} else {
if (clock_type == COMPUTE_ENGINE_PLL_PARAM) {
args.v3.ulClock.ulComputeClockFlag = clock_type;
args.v3.ulClock.ulClockFreq = cpu_to_le32(clock); /* 10 khz */
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
dividers->post_div = args.v3.ucPostDiv;
dividers->enable_post_div = (args.v3.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
dividers->enable_dithen = (args.v3.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
dividers->fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDiv);
dividers->frac_fb_div = le16_to_cpu(args.v3.ulFbDiv.usFbDivFrac);
dividers->ref_div = args.v3.ucRefDiv;
dividers->vco_mode = (args.v3.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
} else {
args.v5.ulClock.ulComputeClockFlag = clock_type;
args.v5.ulClock.ulClockFreq = cpu_to_le32(clock); /* 10 khz */
if (strobe_mode)
args.v5.ucInputFlag = ATOM_PLL_INPUT_FLAG_PLL_STROBE_MODE_EN;
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
dividers->post_div = args.v5.ucPostDiv;
dividers->enable_post_div = (args.v5.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_PLL_POST_DIV_EN) ? true : false;
dividers->enable_dithen = (args.v5.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_FRACTION_DISABLE) ? false : true;
dividers->whole_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDiv);
dividers->frac_fb_div = le16_to_cpu(args.v5.ulFbDiv.usFbDivFrac);
dividers->ref_div = args.v5.ucRefDiv;
dividers->vco_mode = (args.v5.ucCntlFlag &
ATOM_PLL_CNTL_FLAG_MPLL_VCO_MODE) ? 1 : 0;
}
}
break;
case 4:
/* fusion */
args.v4.ulClock = cpu_to_le32(clock); /* 10 khz */
atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
dividers->post_div = args.v4.ucPostDiv;
dividers->real_clock = le32_to_cpu(args.v4.ulClock);
break;
default:
return -EINVAL;
}
return 0;
}
void radeon_atom_set_clock_gating(struct radeon_device *rdev, int enable)
{
DYNAMIC_CLOCK_GATING_PS_ALLOCATION args;

23
drivers/gpu/drm/radeon/radeon_mode.h
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@ -492,6 +492,29 @@ struct radeon_framebuffer {
#define ENCODER_MODE_IS_DP(em) (((em) == ATOM_ENCODER_MODE_DP) || \
((em) == ATOM_ENCODER_MODE_DP_MST))
struct atom_clock_dividers {
u32 post_div;
union {
struct {
#ifdef __BIG_ENDIAN
u32 reserved : 6;
u32 whole_fb_div : 12;
u32 frac_fb_div : 14;
#else
u32 frac_fb_div : 14;
u32 whole_fb_div : 12;
u32 reserved : 6;
#endif
};
u32 fb_div;
};
u32 ref_div;
bool enable_post_div;
bool enable_dithen;
u32 vco_mode;
u32 real_clock;
};
extern enum radeon_tv_std
radeon_combios_get_tv_info(struct radeon_device *rdev);
extern enum radeon_tv_std