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drm/msm/gpu: Add a comment in a6xx_gmu_init() 

If you don't realize is_a650_family() also encompasses a660 family,
you'd think that the debug buffer is double allocated.  Add a comment
to make this more clear.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20211124214151.1427022-11-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Rob Clark 2021-11-24 13:41:35 -08:00
parent b859f9b009
commit f4f6dfdec2
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/msm/adreno/a6xx_gmu.c
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@ -1527,6 +1527,7 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
if (ret)
goto err_memory;
/* Note that a650 family also includes a660 family: */
if (adreno_is_a650_family(adreno_gpu)) {
ret = a6xx_gmu_memory_alloc(gmu, &gmu->icache,
SZ_16M - SZ_16K, 0x04000);
@ -1543,6 +1544,8 @@ int a6xx_gmu_init(struct a6xx_gpu *a6xx_gpu, struct device_node *node)
if (ret)
goto err_memory;
} else {
BUG_ON(adreno_is_a660_family(adreno_gpu));
/* HFI v1, has sptprac */
gmu->legacy = true;