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| author | Alex Deucher <alexander.deucher@amd.com> | 2014-01-15 13:41:31 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-01-20 18:20:52 -0500 |
| commit | 18f8f52b9a8c293111c058f9d25bcd5e718b80b2 (patch) | |
| tree | 7884276588256c4ba185f6846a248b1de3fb0140 /drivers/gpu/drm/radeon/radeon_atombios.c | |
| parent | f5f1f897c892cbff6135cd743df9989ca7bc29e4 (diff) | |
| download | lwn-18f8f52b9a8c293111c058f9d25bcd5e718b80b2.tar.gz lwn-18f8f52b9a8c293111c058f9d25bcd5e718b80b2.zip | |
drm/radeon: handle ss percentage divider properly
It's either 100 or 1000 depending on the flags in the
table.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_atombios.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_atombios.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c index 80a56ad40c52..61cff32b4012 100644 --- a/drivers/gpu/drm/radeon/radeon_atombios.c +++ b/drivers/gpu/drm/radeon/radeon_atombios.c @@ -1511,6 +1511,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage); ss->type = ss_assign->v1.ucSpreadSpectrumMode; ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz); + ss->percentage_divider = 100; return true; } ss_assign = (union asic_ss_assignment *) @@ -1528,6 +1529,7 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage); ss->type = ss_assign->v2.ucSpreadSpectrumMode; ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz); + ss->percentage_divider = 100; if ((crev == 2) && ((id == ASIC_INTERNAL_ENGINE_SS) || (id == ASIC_INTERNAL_MEMORY_SS))) @@ -1549,6 +1551,11 @@ bool radeon_atombios_get_asic_ss_info(struct radeon_device *rdev, le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage); ss->type = ss_assign->v3.ucSpreadSpectrumMode; ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz); + if (ss_assign->v3.ucSpreadSpectrumMode & + SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK) + ss->percentage_divider = 1000; + else + ss->percentage_divider = 100; if ((id == ASIC_INTERNAL_ENGINE_SS) || (id == ASIC_INTERNAL_MEMORY_SS)) ss->rate /= 100; |