From 96d2af2150c1e3326ea1163db1210ba4139f190a Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 9 May 2013 17:34:45 -0400
Subject: [PATCH] drm/radeon: parse the acp clock voltage deps table
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/radeon/r600_dpm.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/radeon/r600_dpm.c b/drivers/gpu/drm/radeon/r600_dpm.c
index 314886ab011b..bf851ac5491a 100644
--- a/drivers/gpu/drm/radeon/r600_dpm.c
+++ b/drivers/gpu/drm/radeon/r600_dpm.c
@@ -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,
--
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