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Commit 5b7d2450 authored by Alex Deucher's avatar Alex Deucher
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drm/radeon: gcc fixes for extended dpm tables 

Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs.  Rather than indexing the arrays, use
pointer arithmetic.

See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 9af37a7d
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Showing with 50 additions and 24 deletions
drivers/gpu/drm/radeon/r600_dpm.c
View file @ 5b7d2450
......@@ -799,15 +799,19 @@ static int r600_parse_clk_voltage_dep_table(struct radeon_clock_voltage_dependen
u32 size = atom_table->ucNumEntries *
sizeof(struct radeon_clock_voltage_dependency_entry);
int i;
ATOM_PPLIB_Clock_Voltage_Dependency_Record *entry;
radeon_table->entries = kzalloc(size, GFP_KERNEL);
if (!radeon_table->entries)
return -ENOMEM;
entry = &atom_table->entries[0];
for (i = 0; i < atom_table->ucNumEntries; i++) {
radeon_table->entries[i].clk = le16_to_cpu(atom_table->entries[i].usClockLow) |
(atom_table->entries[i].ucClockHigh << 16);
radeon_table->entries[i].v = le16_to_cpu(atom_table->entries[i].usVoltage);
radeon_table->entries[i].clk = le16_to_cpu(entry->usClockLow) |
(entry->ucClockHigh << 16);
radeon_table->entries[i].v = le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_Clock_Voltage_Dependency_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_Clock_Voltage_Dependency_Record));
}
radeon_table->count = atom_table->ucNumEntries;
......@@ -931,6 +935,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(ATOM_PPLIB_PhaseSheddingLimits_Table *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(power_info->pplib4.usVddcPhaseShedLimitsTableOffset));
ATOM_PPLIB_PhaseSheddingLimits_Record *entry;
rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries =
kzalloc(psl->ucNumEntries *
......@@ -941,15 +946,16 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
return -ENOMEM;
}
entry = &psl->entries[0];
for (i = 0; i < psl->ucNumEntries; i++) {
rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].sclk =
le16_to_cpu(psl->entries[i].usSclkLow) |
(psl->entries[i].ucSclkHigh << 16);
le16_to_cpu(entry->usSclkLow) | (entry->ucSclkHigh << 16);
rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].mclk =
le16_to_cpu(psl->entries[i].usMclkLow) |
(psl->entries[i].ucMclkHigh << 16);
le16_to_cpu(entry->usMclkLow) | (entry->ucMclkHigh << 16);
rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].voltage =
le16_to_cpu(psl->entries[i].usVoltage);
le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_PhaseSheddingLimits_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_PhaseSheddingLimits_Record));
}
rdev->pm.dpm.dyn_state.phase_shedding_limits_table.count =
psl->ucNumEntries;
......@@ -976,26 +982,30 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(ATOM_PPLIB_CAC_Leakage_Table *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(power_info->pplib5.usCACLeakageTableOffset));
ATOM_PPLIB_CAC_Leakage_Record *entry;
u32 size = cac_table->ucNumEntries * sizeof(struct radeon_cac_leakage_table);
rdev->pm.dpm.dyn_state.cac_leakage_table.entries = kzalloc(size, GFP_KERNEL);
if (!rdev->pm.dpm.dyn_state.cac_leakage_table.entries) {
r600_free_extended_power_table(rdev);
return -ENOMEM;
}
entry = &cac_table->entries[0];
for (i = 0; i < cac_table->ucNumEntries; i++) {
if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) {
rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc1 =
le16_to_cpu(cac_table->entries[i].usVddc1);
le16_to_cpu(entry->usVddc1);
rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc2 =
le16_to_cpu(cac_table->entries[i].usVddc2);
le16_to_cpu(entry->usVddc2);
rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc3 =
le16_to_cpu(cac_table->entries[i].usVddc3);
le16_to_cpu(entry->usVddc3);
} else {
rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc =
le16_to_cpu(cac_table->entries[i].usVddc);
le16_to_cpu(entry->usVddc);
rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].leakage =
le32_to_cpu(cac_table->entries[i].ulLeakageValue);
le32_to_cpu(entry->ulLeakageValue);
}
entry = (ATOM_PPLIB_CAC_Leakage_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_CAC_Leakage_Record));
}
rdev->pm.dpm.dyn_state.cac_leakage_table.count = cac_table->ucNumEntries;
}
......@@ -1017,6 +1027,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
1 + array->ucNumEntries * sizeof(VCEClockInfo));
ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *entry;
u32 size = limits->numEntries *
sizeof(struct radeon_vce_clock_voltage_dependency_entry);
rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries =
......@@ -1027,15 +1038,19 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
}
rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count =
limits->numEntries;
entry = &limits->entries[0];
for (i = 0; i < limits->numEntries; i++) {
VCEClockInfo *vce_clk =
&array->entries[limits->entries[i].ucVCEClockInfoIndex];
VCEClockInfo *vce_clk = (VCEClockInfo *)
((u8 *)&array->entries[0] +
(entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo)));
rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk =
le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk =
le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v =
le16_to_cpu(limits->entries[i].usVoltage);
le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record));
}
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3) &&
......@@ -1048,6 +1063,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(ext_hdr->usUVDTableOffset) + 1 +
1 + (array->ucNumEntries * sizeof (UVDClockInfo)));
ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *entry;
u32 size = limits->numEntries *
sizeof(struct radeon_uvd_clock_voltage_dependency_entry);
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries =
......@@ -1058,15 +1074,19 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
}
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count =
limits->numEntries;
entry = &limits->entries[0];
for (i = 0; i < limits->numEntries; i++) {
UVDClockInfo *uvd_clk =
&array->entries[limits->entries[i].ucUVDClockInfoIndex];
UVDClockInfo *uvd_clk = (UVDClockInfo *)
((u8 *)&array->entries[0] +
(entry->ucUVDClockInfoIndex * sizeof(UVDClockInfo)));
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].vclk =
le16_to_cpu(uvd_clk->usVClkLow) | (uvd_clk->ucVClkHigh << 16);
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk =
le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16);
rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v =
le16_to_cpu(limits->entries[i].usVoltage);
entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record));
}
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) &&
......@@ -1075,6 +1095,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(ATOM_PPLIB_SAMClk_Voltage_Limit_Table *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1);
ATOM_PPLIB_SAMClk_Voltage_Limit_Record *entry;
u32 size = limits->numEntries *
sizeof(struct radeon_clock_voltage_dependency_entry);
rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries =
......@@ -1085,12 +1106,14 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
}
rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count =
limits->numEntries;
entry = &limits->entries[0];
for (i = 0; i < limits->numEntries; i++) {
rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk =
le16_to_cpu(limits->entries[i].usSAMClockLow) |
(limits->entries[i].ucSAMClockHigh << 16);
le16_to_cpu(entry->usSAMClockLow) | (entry->ucSAMClockHigh << 16);
rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v =
le16_to_cpu(limits->entries[i].usVoltage);
le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_SAMClk_Voltage_Limit_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_SAMClk_Voltage_Limit_Record));
}
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) &&
......@@ -1130,6 +1153,7 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
(ATOM_PPLIB_ACPClk_Voltage_Limit_Table *)
(mode_info->atom_context->bios + data_offset +
le16_to_cpu(ext_hdr->usACPTableOffset) + 1);
ATOM_PPLIB_ACPClk_Voltage_Limit_Record *entry;
u32 size = limits->numEntries *
sizeof(struct radeon_clock_voltage_dependency_entry);
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries =
......@@ -1140,12 +1164,14 @@ int r600_parse_extended_power_table(struct radeon_device *rdev)
}
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count =
limits->numEntries;
entry = &limits->entries[0];
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);
le16_to_cpu(entry->usACPClockLow) | (entry->ucACPClockHigh << 16);
rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v =
le16_to_cpu(limits->entries[i].usVoltage);
le16_to_cpu(entry->usVoltage);
entry = (ATOM_PPLIB_ACPClk_Voltage_Limit_Record *)
((u8 *)entry + sizeof(ATOM_PPLIB_ACPClk_Voltage_Limit_Record));
}
}
if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) &&
......
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