diff options
| author | Rob Clark <robdclark@chromium.org> | 2023-07-27 14:20:18 -0700 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2023-08-07 14:22:36 -0700 |
| commit | 90b593ce1c9e979e64f6dd3dccec11ed3654077f (patch) | |
| tree | 08b174e0d4c27326318d2127cfff108347fb6376 /drivers/gpu/drm/msm/adreno/a6xx_gmu.c | |
| parent | b42ab8545eb3529ff80534148e2ddb5c998d14c3 (diff) | |
drm/msm/adreno: Switch to chip-id for identifying GPU
Since the revision becomes an opaque identifier with future GPUs, move
away from treating different ranges of bits as having a given meaning.
This means that we need to explicitly list different patch revisions in
the device table.
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/549782/
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gmu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index f1bb20574018..bf7f855f4a34 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -790,10 +790,16 @@ static int a6xx_gmu_fw_start(struct a6xx_gmu *gmu, unsigned int state) gmu_write(gmu, REG_A6XX_GMU_AHB_FENCE_RANGE_0, (1 << 31) | (0xa << 18) | (0xa0)); - chipid = adreno_gpu->rev.core << 24; - chipid |= adreno_gpu->rev.major << 16; - chipid |= adreno_gpu->rev.minor << 12; - chipid |= adreno_gpu->rev.patchid << 8; + /* + * Note that the GMU has a slightly different layout for + * chip_id, for whatever reason, so a bit of massaging + * is needed. The upper 16b are the same, but minor and + * patchid are packed in four bits each with the lower + * 8b unused: + */ + chipid = adreno_gpu->chip_id & 0xffff0000; + chipid |= (adreno_gpu->chip_id << 4) & 0xf000; /* minor */ + chipid |= (adreno_gpu->chip_id << 8) & 0x0f00; /* patchid */ gmu_write(gmu, REG_A6XX_GMU_HFI_SFR_ADDR, chipid); |