diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 77 |
1 files changed, 14 insertions, 63 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 58038f5cab38..8c9b2ef32c68 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -226,6 +226,11 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev) { int i; + /* no need to take locks, etc. if nothing's going to change */ + if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) && + (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index)) + return; + mutex_lock(&rdev->ddev->struct_mutex); mutex_lock(&rdev->vram_mutex); mutex_lock(&rdev->cp.mutex); @@ -632,8 +637,6 @@ void radeon_pm_fini(struct radeon_device *rdev) } radeon_hwmon_fini(rdev); - if (rdev->pm.i2c_bus) - radeon_i2c_destroy(rdev->pm.i2c_bus); } void radeon_pm_compute_clocks(struct radeon_device *rdev) @@ -709,73 +712,21 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev) static bool radeon_pm_in_vbl(struct radeon_device *rdev) { - u32 stat_crtc = 0, vbl = 0, position = 0; + int crtc, vpos, hpos, vbl_status; bool in_vbl = true; - if (ASIC_IS_DCE4(rdev)) { - if (rdev->pm.active_crtcs & (1 << 0)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC0_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC0_REGISTER_OFFSET) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 1)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC1_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC1_REGISTER_OFFSET) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 2)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC2_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC2_REGISTER_OFFSET) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 3)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC3_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC3_REGISTER_OFFSET) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 4)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC4_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC4_REGISTER_OFFSET) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 5)) { - vbl = RREG32(EVERGREEN_CRTC_V_BLANK_START_END + - EVERGREEN_CRTC5_REGISTER_OFFSET) & 0xfff; - position = RREG32(EVERGREEN_CRTC_STATUS_POSITION + - EVERGREEN_CRTC5_REGISTER_OFFSET) & 0xfff; - } - } else if (ASIC_IS_AVIVO(rdev)) { - if (rdev->pm.active_crtcs & (1 << 0)) { - vbl = RREG32(AVIVO_D1CRTC_V_BLANK_START_END) & 0xfff; - position = RREG32(AVIVO_D1CRTC_STATUS_POSITION) & 0xfff; - } - if (rdev->pm.active_crtcs & (1 << 1)) { - vbl = RREG32(AVIVO_D2CRTC_V_BLANK_START_END) & 0xfff; - position = RREG32(AVIVO_D2CRTC_STATUS_POSITION) & 0xfff; - } - if (position < vbl && position > 1) - in_vbl = false; - } else { - if (rdev->pm.active_crtcs & (1 << 0)) { - stat_crtc = RREG32(RADEON_CRTC_STATUS); - if (!(stat_crtc & 1)) - in_vbl = false; - } - if (rdev->pm.active_crtcs & (1 << 1)) { - stat_crtc = RREG32(RADEON_CRTC2_STATUS); - if (!(stat_crtc & 1)) + /* Iterate over all active crtc's. All crtc's must be in vblank, + * otherwise return in_vbl == false. + */ + for (crtc = 0; (crtc < rdev->num_crtc) && in_vbl; crtc++) { + if (rdev->pm.active_crtcs & (1 << crtc)) { + vbl_status = radeon_get_crtc_scanoutpos(rdev, crtc, &vpos, &hpos); + if ((vbl_status & RADEON_SCANOUTPOS_VALID) && + !(vbl_status & RADEON_SCANOUTPOS_INVBL)) in_vbl = false; } } - if (position < vbl && position > 1) - in_vbl = false; - return in_vbl; } |