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path: root/drivers/gpu/drm/radeon/kv_dpm.c
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* drm/radeon: disable bapm on KBAlex Deucher2013-10-231-1/+1
| | | | | | May cause stability problems on some boards. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: rework auto performance level enableAlex Deucher2013-09-151-1/+0
| | | | | | | | | | | | | Calling force_performance_level() from set_power_state() doesn't work on some asics because the current power state pointer has not been properly updated at that point. Move the calls to force_performance_level() out of the asic specific set_power_state() functions and into the main power state sequence. Fixes dpm resume on SI. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: add bapm callback for kb/kvAlex Deucher2013-09-111-0/+20
| | | | | | This adds the enable_bapm callback for kb/kv. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: handle bapm on kb/kvAlex Deucher2013-09-111-0/+8
| | | | | | | | | | | bapm is a power management feature for handling the power budget between the CPU and GPU on APUs. This patch adds support for enabling or disabling it. For now disable it by default. Enabling it properly requires quite a bit more work and will be addressed in a separate patch. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon: dpm updates for KVAlex Deucher2013-09-111-15/+88
| | | | | | | | This updates dpm support for KV asics. Notably there are some changes in acp handling and forcing performance levels. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon: signedness bug in kv_dpm.cDan Carpenter2013-09-111-19/+13
| | | | | | | | | | | | | | | | | | | The problem here is that "unsigned i" is always greater than or equal to zero. These loops mostly have a second check for "(i == 0)" so only the last two are actually buggy. The rest is just cleanup. Bug 1: kv_force_dpm_highest() doesn't have an "(i == 0)" check so it's a potential forever loop. Bug 2: In kv_get_sleep_divider_id_from_clock() there is a typo and the test is reversed "<=" vs ">" so we never enter the loop. That means normally we return KV_MAX_DEEPSLEEP_DIVIDER_ID (5). The return value from here is saved in ->DeepSleepDivId and I wasn't able to determine how that is used. This is a static checker fix and I have not tested it. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon: gcc fixes for kb/kv dpmAlex Deucher2013-08-301-2/+5
| | | | | | | | | | | | | | Newer versions of gcc seem to wander off into the weeds when dealing with variable sizes arrays in structs. Rather than indexing the arrays, use pointer arithmetic. See bugs: https://bugs.freedesktop.org/show_bug.cgi?id=66932 https://bugs.freedesktop.org/show_bug.cgi?id=66972 https://bugs.freedesktop.org/show_bug.cgi?id=66945 Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: only need to reprogram uvd if uvd pg is enabledAlex Deucher2013-08-301-6/+9
| | | | | | | Avoid needless uvd reprogramming if uvd powergating is disabled. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com>
* drm/radeon/dpm: ungate blocks in dpm disable for kb/kvAlex Deucher2013-08-301-0/+6
| | | | | | | | These blocks need to be ungated for the other parts of the driver properly initialize them (e.g., after a gpu reset, etc.). Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon: handle cg in KB/KV dpm codeAlex Deucher2013-08-301-0/+26
| | | | | | | | Clockgating needs to be disabled around certain parts of dpm setup otherwise the smc gets into a bad state and dpm doesn't work properly. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon: separate UVD code v3Christian König2013-08-301-7/+4
| | | | | | | | | | | | | | Our different hardware blocks are actually completely separated, so it doesn't make much sense any more to structure the code by pure chipset generations. Start restructuring the code by separating our the UVD block. v2: updated commit message v3: rebased and restructurized start/stop functions for kv dpm. Signed-off-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: implement UVD powergating for KB/KVAlex Deucher2013-08-301-7/+15
| | | | | | Powergate the UVD block when not in use to save power. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: implement force performance level for KB/KVAlex Deucher2013-08-301-0/+43
| | | | | | Allows you to force the selected performance level via sysfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/dpm: add debugfs support for KB/KVAlex Deucher2013-08-301-0/+23
| | | | | | | This allows you to look at the current DPM state via debugfs. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* drm/radeon/kms: add dpm support for KB/KVAlex Deucher2013-08-301-0/+2536
This adds dpm support for KB/KV asics. This includes: - dynamic engine clock scaling - dynamic voltage scaling - power containment - shader power scaling Set radeon.dpm=1 to enable. Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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