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drm/radeon: fix endian handling in radeon_atom_init_mc_reg_table 

Need to swap the data for big endian.
Notcied by sylware in IRC.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-01-16 10:53:50 -05:00
parent aa34dba8fb
commit d526fbdd0f
1 changed files with 7 additions and 5 deletions
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12
drivers/gpu/drm/radeon/radeon_atombios.c
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@ -3874,16 +3874,18 @@ int radeon_atom_init_mc_reg_table(struct radeon_device *rdev,
((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
}
reg_table->last = i;
while ((*(u32 *)reg_data != END_OF_REG_DATA_BLOCK) &&
while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
(num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
t_mem_id = (u8)((*(u32 *)reg_data & MEM_ID_MASK) >> MEM_ID_SHIFT);
t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
>> MEM_ID_SHIFT);
if (module_index == t_mem_id) {
reg_table->mc_reg_table_entry[num_ranges].mclk_max =
(u32)((*(u32 *)reg_data & CLOCK_RANGE_MASK) >> CLOCK_RANGE_SHIFT);
(u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
>> CLOCK_RANGE_SHIFT);
for (i = 0, j = 1; i < reg_table->last; i++) {
if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
(u32)*((u32 *)reg_data + j);
(u32)le32_to_cpu(*((u32 *)reg_data + j));
j++;
} else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
@ -3895,7 +3897,7 @@ int radeon_atom_init_mc_reg_table(struct radeon_device *rdev,
reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
}
if (*(u32 *)reg_data != END_OF_REG_DATA_BLOCK)
if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
return -EINVAL;
reg_table->num_entries = num_ranges;
} else