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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-03-19 01:03:01 +0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-06-28 03:16:33 +0400 |
| commit | 32ce4652dc9074385e00f3a5e6fa995e612aa113 (patch) | |
| tree | 822e0c3f72c16b65704aa95752349a3d33b315b2 /drivers | |
| parent | f8f84ac5d48c2377131a3c6b8c14e3bdcbf9349e (diff) | |
| download | linux-32ce4652dc9074385e00f3a5e6fa995e612aa113.tar.xz | |
drm/radeon/dpm: add an enum for pcie gen selection
This makes it easier the understand what the code is
doing.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/radeon/cypress_dpm.c | 22 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 7 |
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 */ |