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drm/radeon: parse the acp clock voltage deps table 

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-05-09 17:34:45 -04:00
parent 3cb928ff1e
commit 96d2af2150
1 changed files with 26 additions and 0 deletions
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26
drivers/gpu/drm/radeon/r600_dpm.c
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@ -1106,6 +1106,30 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
rdev->pm.dpm.dyn_state.ppm_table->tj_max =
le32_to_cpu(ppm->ulTjmax);
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) &&
ext_hdr->usACPTableOffset) {
ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits =
(ATOM_PPLIB_ACPClk_Voltage_Limit_Table *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(ext_hdr->usACPTableOffset) + 1);
u32 size = limits->numEntries *
sizeof(struct radeon_clock_voltage_dependency_entry);
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries =
kzalloc(size, GFP_KERNEL);
if (!rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) {
r600_free_extended_power_table(rdev);
return -ENOMEM;
}
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count =
limits->numEntries;
for (i = 0; i < limits->numEntries; i++) {
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk =
le16_to_cpu(limits->entries[i].usACPClockLow) |
(limits->entries[i].ucACPClockHigh << 16);
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v =
le16_to_cpu(limits->entries[i].usVoltage);
}
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) &&
ext_hdr->usPowerTuneTableOffset) {
u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset +
@ -1173,6 +1197,8 @@ void r600_free_extended_power_table(struct radeon_device *rdev)
kfree(rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries);
if (rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries)
kfree(rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries);
if (rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries)
kfree(rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries);
}
enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,