diff options
author | Sachit Kadle <skadle@nvidia.com> | 2017-01-09 20:34:14 -0500 |
---|---|---|
committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2017-06-19 19:36:26 -0400 |
commit | 4d8895276003edf0183c94f3e2f5de378bf9d345 (patch) | |
tree | 8093dd0531718b05f8796a226c0d3f747d2289c3 /drivers/gpu/nvgpu/vgpu/vgpu.c | |
parent | b3a7c2b305ec6f895dc236f0c5f163bd4cbeb248 (diff) |
gpu: nvgpu: vgpu: add freq capping support
Currently callbacks from the PM_QOS framework (for
thermal events), result in a RPC call to set GPU frequency.
Since the governor will now be responsible for setting desired
rate, the max PM_QOS callback will now cap the possible
GPU frequency w/ a new RPC call to the server. The server
is responsible for setting the ultimate frequency
based on the cap & desired rates.
Jira VFND-3699
Change-Id: I806e309c40abc2f1381b6a23f2d898cfe26f9794
Signed-off-by: Sachit Kadle <skadle@nvidia.com>
Reviewed-on: http://git-master/r/1295543
(cherry picked from commit e81693c6e087f8f10a985be83715042fc590d6db)
Reviewed-on: http://git-master/r/1282467
(cherry picked from commit 7b4e0db647572e82a8d53e823c36b465781f4942)
Reviewed-on: http://git-master/r/1321836
(cherry picked from commit 57dafc08a57ea768eb302bf1adb901425ce2f835)
Reviewed-on: http://git-master/r/1313469
Tested-by: Aparna Das <aparnad@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Richard Zhao <rizhao@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Diffstat (limited to 'drivers/gpu/nvgpu/vgpu/vgpu.c')
-rw-r--r-- | drivers/gpu/nvgpu/vgpu/vgpu.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/gpu/nvgpu/vgpu/vgpu.c b/drivers/gpu/nvgpu/vgpu/vgpu.c index e8a778f5..52f375f9 100644 --- a/drivers/gpu/nvgpu/vgpu/vgpu.c +++ b/drivers/gpu/nvgpu/vgpu/vgpu.c | |||
@@ -516,20 +516,13 @@ static int vgpu_qos_notify(struct notifier_block *nb, | |||
516 | container_of(nb, struct gk20a_scale_profile, | 516 | container_of(nb, struct gk20a_scale_profile, |
517 | qos_notify_block); | 517 | qos_notify_block); |
518 | struct gk20a *g = get_gk20a(profile->dev); | 518 | struct gk20a *g = get_gk20a(profile->dev); |
519 | struct tegra_vgpu_cmd_msg msg = {}; | ||
520 | struct tegra_vgpu_gpu_clk_rate_params *p = &msg.params.gpu_clk_rate; | ||
521 | u32 max_freq; | 519 | u32 max_freq; |
522 | int err; | 520 | int err; |
523 | 521 | ||
524 | gk20a_dbg_fn(""); | 522 | gk20a_dbg_fn(""); |
525 | 523 | ||
526 | max_freq = (u32)pm_qos_read_max_bound(PM_QOS_GPU_FREQ_BOUNDS); | 524 | max_freq = (u32)pm_qos_read_max_bound(PM_QOS_GPU_FREQ_BOUNDS); |
527 | 525 | err = vgpu_clk_cap_rate(profile->dev, max_freq); | |
528 | msg.cmd = TEGRA_VGPU_CMD_SET_GPU_CLK_RATE; | ||
529 | msg.handle = vgpu_get_handle_from_dev(profile->dev); | ||
530 | p->rate = max_freq; | ||
531 | err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); | ||
532 | err = err ? err : msg.ret; | ||
533 | if (err) | 526 | if (err) |
534 | nvgpu_err(g, "%s failed, err=%d", __func__, err); | 527 | nvgpu_err(g, "%s failed, err=%d", __func__, err); |
535 | 528 | ||