Re: [PATCH 3/8] drm/msm/a6xx: Add Adreno 722 support
From: Konrad Dybcio <hidden>
Date: 2026-07-06 08:59:26
Also in:
dri-devel, linux-arm-msm, linux-devicetree, linux-iommu, lkml
On 7/5/26 10:14 AM, Akhil P Oommen wrote:
From: Puranam V G Tejaswi <redacted> Add support for Adreno A722, a member of the GEN1 A7xx family. It is derived from A730 and shares the same IP-level configurations: HWCG registers, protected registers, GBIF CX registers and gmu_cgc_mode. Major differences include lower cache/core counts, 1MB GMEM, no Concurrent Binning & LPAC support. Some of the peripheral blocks like RSCC are from A740 that resulted in updates to RSC layout. Add a new entry to the catalog to describe the usual configuration and few additional fixup mainly due to missing CB/LPAC features and updated RSC layout. Signed-off-by: Puranam V G Tejaswi <redacted> Signed-off-by: Akhil P Oommen <akhilpo@oss.qualcomm.com> ---
[...]
quoted hunk ↗ jump to hunk
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c@@ -710,7 +710,8 @@ static void a6xx_gmu_rpmh_init(struct a6xx_gmu *gmu) gmu_write_rscc(gmu, REG_A6XX_RSCC_HIDDEN_TCS_CMD0_DATA + 2, 0); gmu_write_rscc(gmu, REG_A6XX_RSCC_HIDDEN_TCS_CMD0_ADDR + 2, 0); gmu_write_rscc(gmu, REG_A6XX_RSCC_HIDDEN_TCS_CMD0_DATA + 4, - adreno_is_a740_family(adreno_gpu) ? 0x80000021 : 0x80000000); + (adreno_is_a740_family(adreno_gpu) || + adreno_is_a722(adreno_gpu)) ? 0x80000021 : 0x80000000);
This is a discrepancy vs kgsl (did you look at gen7_14 instead of gen7_17? did you test this on device?) [...]
/* The second spin of A7xx GPUs messed with some register offsets.. */ - if (adreno_is_a740_family(adreno_gpu)) + if (adreno_is_a740_family(adreno_gpu) || adreno_is_a722(adreno_gpu)) seqmem0_drv0_reg = REG_A7XX_RSCC_SEQ_MEM_0_DRV0_A740;
Likewise [...]
/* The second spin of A7xx GPUs messed with some register offsets.. */ - if (adreno_is_a740_family(adreno_gpu) || adreno_is_a8xx(adreno_gpu)) + if (adreno_is_a740_family(adreno_gpu) || adreno_is_a722(adreno_gpu) || + adreno_is_a8xx(adreno_gpu)) seqmem_off = 4;
Likewise
quoted hunk ↗ jump to hunk
/* Make sure there are no outstanding RPMh votes */@@ -1100,7 +1104,8 @@ static void a6xx_gmu_rpmh_off(struct a6xx_gmu *gmu) gmu_poll_timeout_rscc(gmu, REG_A6XX_RSCC_TCS3_DRV0_STATUS + seqmem_off, val, (val & 1), 100, 1000); - if (!adreno_is_a740_family(adreno_gpu) && !adreno_is_a8xx(adreno_gpu)) + if (!adreno_is_a740_family(adreno_gpu) && !adreno_is_a722(adreno_gpu) && + !adreno_is_a8xx(adreno_gpu)) return;
Likewise You also need to if-out concurrent binning for this SKU Konrad