Re: [PATCH v2 2/3] drm/msm/a6xx: Use rev to identify SKU

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On 7/29/2021 8:57 PM, Rob Clark wrote:
On Thu, Jul 29, 2021 at 7:33 AM Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx> wrote:

Use rev instead of revn to identify the SKU. This is in
preparation to the introduction of 7c3 gpu which won't have a
revn.

Signed-off-by: Akhil P Oommen <akhilpo@xxxxxxxxxxxxxx>
---

(no changes since v1)

  drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 11 +++++------
  1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index 183b9f9..0da1a66 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -1675,11 +1675,11 @@ static u32 a618_get_speed_bin(u32 fuse)
         return UINT_MAX;
  }

-static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
+static u32 fuse_to_supp_hw(struct device *dev, struct adreno_rev rev, u32 fuse)
  {
         u32 val = UINT_MAX;

-       if (revn == 618)
+       if (adreno_cmp_rev(ADRENO_REV(6, 1, 8, ANY_ID), rev))

Looks like adreno_cmp_rev() ended up in patch 3/3 when it should have
been in this patch..

But I guess we could also move this into adreno_is_a618() and use that here

BR,
-R
Ahh! I reordered the patches. This is too early in the probe sequence to call adreno_is_axxx(), right?

-Akhil.

                 val = a618_get_speed_bin(fuse);

         if (val == UINT_MAX) {
@@ -1692,8 +1692,7 @@ static u32 fuse_to_supp_hw(struct device *dev, u32 revn, u32 fuse)
         return (1 << val);
  }

-static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
-               u32 revn)
+static int a6xx_set_supported_hw(struct device *dev, struct adreno_rev rev)
  {
         u32 supp_hw = UINT_MAX;
         u16 speedbin;
@@ -1714,7 +1713,7 @@ static int a6xx_set_supported_hw(struct device *dev, struct a6xx_gpu *a6xx_gpu,
         }
         speedbin = le16_to_cpu(speedbin);

-       supp_hw = fuse_to_supp_hw(dev, revn, speedbin);
+       supp_hw = fuse_to_supp_hw(dev, rev, speedbin);

  done:
         ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
@@ -1785,7 +1784,7 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)

         a6xx_llc_slices_init(pdev, a6xx_gpu);

-       ret = a6xx_set_supported_hw(&pdev->dev, a6xx_gpu, info->revn);
+       ret = a6xx_set_supported_hw(&pdev->dev, config->rev);
         if (ret) {
                 a6xx_destroy(&(a6xx_gpu->base.base));
                 return ERR_PTR(ret);
--
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