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authorAlex Deucher <alexdeucher@gmail.com>2011-02-02 18:42:03 -0500
committerDave Airlie <airlied@redhat.com>2011-02-04 09:46:35 +1000
commit0975b16274bad1f0bd5c5fd6ab759c5a9ee11949 (patch)
tree522e6af52e285c3616976709f868aa07e38c8cbe /drivers/gpu/drm/radeon/radeon_combios.c
parent87364760de5d631390c478fcbac8db1b926e0adf (diff)
downloadop-kernel-dev-0975b16274bad1f0bd5c5fd6ab759c5a9ee11949.zip
op-kernel-dev-0975b16274bad1f0bd5c5fd6ab759c5a9ee11949.tar.gz
drm/radeon/kms: dynamically allocate power state space
We previously used a static array, but some new systems had more states then we had array space, so dynamically allocate space based on the number of states in the vbios. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=33851 Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Cc: stable@kernel.org Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_combios.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index 591fcae..d27ef74 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -2442,6 +2442,17 @@ void radeon_combios_get_power_modes(struct radeon_device *rdev)
rdev->pm.default_power_state_index = -1;
+ /* allocate 2 power states */
+ rdev->pm.power_state = kzalloc(sizeof(struct radeon_power_state) * 2, GFP_KERNEL);
+ if (!rdev->pm.power_state) {
+ rdev->pm.default_power_state_index = state_index;
+ rdev->pm.num_power_states = 0;
+
+ rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
+ rdev->pm.current_clock_mode_index = 0;
+ return;
+ }
+
if (rdev->flags & RADEON_IS_MOBILITY) {
offset = combios_get_table_offset(dev, COMBIOS_POWERPLAY_INFO_TABLE);
if (offset) {
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