Re: [PATCH v4 3/7] drm: msm: a6xx: set gpu freq through hfi

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On 7/11/2020 2:43 AM, Akhil P Oommen wrote:

On 7/10/2020 1:34 AM, Jonathan Marek wrote:
On 7/9/20 4:00 PM, Akhil P Oommen wrote:
Newer targets support changing gpu frequency through HFI. So
use that wherever supported instead of the legacy method.


It was already using HFI on newer targets. Don't break it in one commit then fix it in the next.

Oops. I somehow got confused. Will fix and resend.

-Akhil

I broke the pm_runtime_get_if_in_use() check too. Other than that, just squashing this patch with the previous one should be enough.

-Akhil.



Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
---
  drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 11 +++++++----
  1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
index 233afea..b547339 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c
@@ -121,6 +121,12 @@ void a6xx_gmu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp)
          if (gpu_freq == gmu->gpu_freqs[perf_index])
              break;
  +    if (!gmu->legacy) {
+        a6xx_hfi_set_freq(gmu, gmu->current_perf_index);
+        icc_set_bw(gpu->icc_path, 0, MBps_to_icc(7216));
+        return;
+    }
+
      gmu->current_perf_index = perf_index;
      gmu->freq = gmu->gpu_freqs[perf_index];
  @@ -893,10 +899,7 @@ int a6xx_gmu_resume(struct a6xx_gpu *a6xx_gpu)
      enable_irq(gmu->hfi_irq);
        /* Set the GPU to the current freq */
-    if (gmu->legacy)
-        a6xx_gmu_set_initial_freq(gpu, gmu);
-    else
-        a6xx_hfi_set_freq(gmu, gmu->current_perf_index);
+    a6xx_gmu_set_initial_freq(gpu, gmu);
        /*
       * "enable" the GX power domain which won't actually do anything but it

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