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-rw-r--r--drivers/gpu/drm/radeon/cypress_dpm.c22
-rw-r--r--drivers/gpu/drm/radeon/radeon.h7
2 files changed, 20 insertions, 9 deletions
diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c
index c7cb19e8fdbe..1c6c3a3c5c32 100644
--- a/drivers/gpu/drm/radeon/cypress_dpm.c
+++ b/drivers/gpu/drm/radeon/cypress_dpm.c
@@ -344,7 +344,7 @@ void cypress_advertise_gen2_capability(struct radeon_device *rdev)
}
-static u32 cypress_get_maximum_link_speed(struct radeon_ps *radeon_state)
+static enum radeon_pcie_gen cypress_get_maximum_link_speed(struct radeon_ps *radeon_state)
{
struct rv7xx_ps *state = rv770_get_ps(radeon_state);
@@ -357,14 +357,16 @@ void cypress_notify_link_speed_change_after_state_change(struct radeon_device *r
struct radeon_ps *radeon_new_state,
struct radeon_ps *radeon_current_state)
{
- u32 pcie_link_speed_target = cypress_get_maximum_link_speed(radeon_new_state);
- u32 pcie_link_speed_current = cypress_get_maximum_link_speed(radeon_current_state);
+ enum radeon_pcie_gen pcie_link_speed_target =
+ cypress_get_maximum_link_speed(radeon_new_state);
+ enum radeon_pcie_gen pcie_link_speed_current =
+ cypress_get_maximum_link_speed(radeon_current_state);
u8 request;
if (pcie_link_speed_target < pcie_link_speed_current) {
- if (pcie_link_speed_target == 0)
+ if (pcie_link_speed_target == RADEON_PCIE_GEN1)
request = PCIE_PERF_REQ_PECI_GEN1;
- else if (pcie_link_speed_target == 1)
+ else if (pcie_link_speed_target == RADEON_PCIE_GEN2)
request = PCIE_PERF_REQ_PECI_GEN2;
else
request = PCIE_PERF_REQ_PECI_GEN3;
@@ -377,14 +379,16 @@ void cypress_notify_link_speed_change_before_state_change(struct radeon_device *
struct radeon_ps *radeon_new_state,
struct radeon_ps *radeon_current_state)
{
- u32 pcie_link_speed_target = cypress_get_maximum_link_speed(radeon_new_state);
- u32 pcie_link_speed_current = cypress_get_maximum_link_speed(radeon_current_state);
+ enum radeon_pcie_gen pcie_link_speed_target =
+ cypress_get_maximum_link_speed(radeon_new_state);
+ enum radeon_pcie_gen pcie_link_speed_current =
+ cypress_get_maximum_link_speed(radeon_current_state);
u8 request;
if (pcie_link_speed_target > pcie_link_speed_current) {
- if (pcie_link_speed_target == 0)
+ if (pcie_link_speed_target == RADEON_PCIE_GEN1)
request = PCIE_PERF_REQ_PECI_GEN1;
- else if (pcie_link_speed_target == 1)
+ else if (pcie_link_speed_target == RADEON_PCIE_GEN2)
request = PCIE_PERF_REQ_PECI_GEN2;
else
request = PCIE_PERF_REQ_PECI_GEN3;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 4ea447d52b62..fbf9e1359d19 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1298,6 +1298,13 @@ struct radeon_dpm_fan {
bool ucode_fan_control;
};
+enum radeon_pcie_gen {
+ RADEON_PCIE_GEN1 = 0,
+ RADEON_PCIE_GEN2 = 1,
+ RADEON_PCIE_GEN3 = 2,
+ RADEON_PCIE_GEN_INVALID = 0xffff
+};
+
struct radeon_dpm {
struct radeon_ps *ps;
/* number of valid power states */