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Message-Id: <20251114-kaana-gpu-support-v3-17-92300c7ec8ff@oss.qualcomm.com>
Date: Fri, 14 Nov 2025 04:59:14 +0530
From: Akhil P Oommen <akhilpo@....qualcomm.com>
To: Rob Clark <robin.clark@....qualcomm.com>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konradybcio@...nel.org>, Sean Paul <sean@...rly.run>,
Dmitry Baryshkov <lumag@...nel.org>,
Abhinav Kumar <abhinav.kumar@...ux.dev>,
Jessica Zhang <jesszhan0024@...il.com>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Jonathan Marek <jonathan@...ek.ca>,
Jordan Crouse <jordan@...micpenguin.net>,
Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>,
Joerg Roedel <joro@...tes.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>,
Thomas Zimmermann <tzimmermann@...e.de>,
Connor Abbott <cwabbott0@...il.com>
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
linux-arm-kernel@...ts.infradead.org, iommu@...ts.linux.dev,
devicetree@...r.kernel.org, Akhil P Oommen <akhilpo@....qualcomm.com>
Subject: [PATCH v3 17/20] drm/msm/a8xx: Add support for Adreno X2-85 GPU
Adreno X2-85 GPU is found in the next generation of Qualcomm's compute
series chipset called Snapdragon X2 Elite (a.k.a Glymur). It is based
on the new A8x slice architecture and features up to 4 slices. Due to
the wider 12 channel DDR support, there is higher DDR bandwidth available
than previous generation to improve performance.
Add a new entry in the catalog along with the necessary register
configurations to enable support for it.
Signed-off-by: Akhil P Oommen <akhilpo@....qualcomm.com>
---
drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 132 ++++++++++++++++++++++++++++++
drivers/gpu/drm/msm/adreno/a8xx_gpu.c | 3 +
drivers/gpu/drm/msm/adreno/adreno_gpu.h | 5 ++
3 files changed, 140 insertions(+)
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
index f064ef6b8be1..abd573381b7e 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
@@ -1634,6 +1634,108 @@ static const struct adreno_info a7xx_gpus[] = {
};
DECLARE_ADRENO_GPULIST(a7xx);
+static const struct adreno_reglist_pipe x285_nonctxt_regs[] = {
+ { REG_A8XX_CP_SMMU_STREAM_ID_LPAC, 0x00000101, BIT(PIPE_NONE) },
+ { REG_A8XX_GRAS_DBG_ECO_CNTL, 0x00000800, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_GRAS_TSEFE_DBG_ECO_CNTL, 0x00200000, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A6XX_PC_AUTO_VERTEX_STRIDE, 0x00000001, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_VIS_STREAM_CNTL, 0x10010000, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_CONTEXT_SWITCH_STABILIZE_CNTL_1, 0x00000002, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_CHICKEN_BITS_1, 0x00000003, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_CHICKEN_BITS_2, 0x00000200, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_CHICKEN_BITS_3, 0x00500000, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_PC_CHICKEN_BITS_4, 0x00500050, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_RB_GC_GMEM_PROTECT, 0x15000000, BIT(PIPE_BR) },
+ { REG_A8XX_RB_RESOLVE_PREFETCH_CNTL, 0x00000007, BIT(PIPE_BR) },
+ { REG_A8XX_RB_CMP_DBG_ECO_CNTL, 0x00004000, BIT(PIPE_BR) },
+ { REG_A8XX_RBBM_NC_MODE_CNTL, 0x00000001, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_SLICE_NC_MODE_CNTL, 0x00000001, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_WAIT_IDLE_CLOCKS_CNTL, 0x00000030, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_WAIT_IDLE_CLOCKS_CNTL2, 0x00000030, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_INTERFACE_HANG_INT_CNTL, 0x0fffffff, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_GBIF_CLIENT_QOS_CNTL, 0x22122212, BIT(PIPE_NONE) },
+ { REG_A8XX_RBBM_CGC_P2S_CNTL, 0x00000040, BIT(PIPE_NONE) },
+ { REG_A7XX_SP_CHICKEN_BITS_2, 0x00820800, BIT(PIPE_NONE) },
+ { REG_A7XX_SP_CHICKEN_BITS_3, 0x00300000, BIT(PIPE_NONE) },
+ { REG_A6XX_SP_PERFCTR_SHADER_MASK, 0x0000003f, BIT(PIPE_NONE) },
+ /* Disable CS dead batch merge */
+ { REG_A7XX_SP_HLSQ_DBG_ECO_CNTL_2, BIT(31), BIT(PIPE_NONE) },
+ { REG_A7XX_SP_HLSQ_TIMEOUT_THRESHOLD_DP, 0x00000080, BIT(PIPE_NONE) },
+ { REG_A7XX_SP_READ_SEL, 0x0001ff00, BIT(PIPE_NONE) },
+ { REG_A6XX_TPL1_DBG_ECO_CNTL, 0x10000000, BIT(PIPE_NONE) },
+ /* BIT(26): Disable final clamp for bicubic filtering */
+ { REG_A6XX_TPL1_DBG_ECO_CNTL1, 0x00000720, BIT(PIPE_NONE) },
+ { REG_A6XX_UCHE_MODE_CNTL, 0x80080000, BIT(PIPE_NONE) },
+ { REG_A8XX_UCHE_CCHE_MODE_CNTL, 0x00001000, BIT(PIPE_NONE) },
+ { REG_A8XX_UCHE_CCHE_CACHE_WAYS, 0x00000800, BIT(PIPE_NONE) },
+ { REG_A8XX_UCHE_GBIF_GX_CONFIG, 0x010240e0, BIT(PIPE_NONE) },
+ { REG_A8XX_UCHE_VARB_IDLE_TIMEOUT, 0x00000020, BIT(PIPE_NONE) },
+ { REG_A7XX_VFD_DBG_ECO_CNTL, 0x00008000, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_VFD_CB_BV_THRESHOLD, 0x00500050, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_VFD_CB_BR_THRESHOLD, 0x00600060, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_VFD_CB_BUSY_REQ_CNT, 0x00200020, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_VFD_CB_LP_REQ_CNT, 0x00000020, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { REG_A8XX_VPC_FLATSHADE_MODE_CNTL, 0x00000001, BIT(PIPE_BV) | BIT(PIPE_BR) },
+ { },
+};
+
+static const u32 x285_protect_regs[] = {
+ A6XX_PROTECT_RDONLY(0x00008, 0x039b),
+ A6XX_PROTECT_RDONLY(0x003b4, 0x008b),
+ A6XX_PROTECT_NORDWR(0x00440, 0x001f),
+ A6XX_PROTECT_RDONLY(0x00580, 0x005f),
+ A6XX_PROTECT_NORDWR(0x005e0, 0x011f),
+ A6XX_PROTECT_RDONLY(0x0074a, 0x0005),
+ A6XX_PROTECT_RDONLY(0x00759, 0x0026),
+ A6XX_PROTECT_RDONLY(0x00789, 0x0000),
+ A6XX_PROTECT_RDONLY(0x0078c, 0x0013),
+ A6XX_PROTECT_NORDWR(0x00800, 0x0029),
+ A6XX_PROTECT_NORDWR(0x0082c, 0x0000),
+ A6XX_PROTECT_NORDWR(0x00837, 0x00af),
+ A6XX_PROTECT_RDONLY(0x008e7, 0x00c9),
+ A6XX_PROTECT_NORDWR(0x008ec, 0x00c3),
+ A6XX_PROTECT_NORDWR(0x009b1, 0x0250),
+ A6XX_PROTECT_RDONLY(0x00ce0, 0x0001),
+ A6XX_PROTECT_RDONLY(0x00df0, 0x0000),
+ A6XX_PROTECT_NORDWR(0x00df1, 0x0000),
+ A6XX_PROTECT_NORDWR(0x00e01, 0x0000),
+ A6XX_PROTECT_NORDWR(0x00e03, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x03c00, 0x00c5),
+ A6XX_PROTECT_RDONLY(0x03cc6, 0x0039),
+ A6XX_PROTECT_NORDWR(0x03d00, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x08600, 0x01ff),
+ A6XX_PROTECT_NORDWR(0x08e00, 0x00ff),
+ A6XX_PROTECT_RDONLY(0x08f00, 0x0000),
+ A6XX_PROTECT_NORDWR(0x08f01, 0x01be),
+ A6XX_PROTECT_NORDWR(0x09600, 0x01ff),
+ A6XX_PROTECT_RDONLY(0x0981a, 0x02e5),
+ A6XX_PROTECT_NORDWR(0x09e00, 0x01ff),
+ A6XX_PROTECT_NORDWR(0x0a600, 0x01ff),
+ A6XX_PROTECT_NORDWR(0x0a82e, 0x0000),
+ A6XX_PROTECT_NORDWR(0x0ae00, 0x0006),
+ A6XX_PROTECT_NORDWR(0x0ae08, 0x0006),
+ A6XX_PROTECT_NORDWR(0x0ae10, 0x00bf),
+ A6XX_PROTECT_RDONLY(0x0aed0, 0x002f),
+ A6XX_PROTECT_NORDWR(0x0af00, 0x027f),
+ A6XX_PROTECT_NORDWR(0x0b600, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x0dc00, 0x1fff),
+ A6XX_PROTECT_RDONLY(0x0fc00, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x18400, 0x003f),
+ A6XX_PROTECT_RDONLY(0x18440, 0x013f),
+ A6XX_PROTECT_NORDWR(0x18580, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x1b400, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x1f400, 0x0477),
+ A6XX_PROTECT_RDONLY(0x1f878, 0x0507),
+ A6XX_PROTECT_NORDWR(0x1f930, 0x0329),
+ A6XX_PROTECT_NORDWR(0x1fd80, 0x1fff),
+ A6XX_PROTECT_NORDWR(0x27800, 0x007f),
+ A6XX_PROTECT_RDONLY(0x27880, 0x0385),
+ A6XX_PROTECT_NORDWR(0x27882, 0x000a),
+ A6XX_PROTECT_NORDWR(0x27c06, 0x0000),
+};
+
+DECLARE_ADRENO_PROTECT(x285_protect, 64);
+
static const struct adreno_reglist_pipe a840_nonctxt_regs[] = {
{ REG_A8XX_CP_SMMU_STREAM_ID_LPAC, 0x00000101, BIT(PIPE_NONE) },
{ REG_A8XX_GRAS_DBG_ECO_CNTL, 0x00000800, BIT(PIPE_BV) | BIT(PIPE_BR) },
@@ -1766,6 +1868,36 @@ static const struct adreno_reglist a840_gbif[] = {
static const struct adreno_info a8xx_gpus[] = {
{
+ .chip_ids = ADRENO_CHIP_IDS(0x44070001),
+ .family = ADRENO_8XX_GEN2,
+ .fw = {
+ [ADRENO_FW_SQE] = "gen80100_sqe.fw",
+ [ADRENO_FW_GMU] = "gen80100_gmu.bin",
+ },
+ .gmem = 21 * SZ_1M,
+ .inactive_period = DRM_MSM_INACTIVE_PERIOD,
+ .quirks = ADRENO_QUIRK_HAS_CACHED_COHERENT |
+ ADRENO_QUIRK_HAS_HW_APRIV,
+ .funcs = &a8xx_gpu_funcs,
+ .a6xx = &(const struct a6xx_info) {
+ .protect = &x285_protect,
+ .nonctxt_reglist = x285_nonctxt_regs,
+ .gbif_cx = a840_gbif,
+ .max_slices = 4,
+ .gmu_chipid = 0x8010100,
+ .bcms = (const struct a6xx_bcm[]) {
+ { .name = "SH0", .buswidth = 16 },
+ { .name = "MC0", .buswidth = 4 },
+ {
+ .name = "ACV",
+ .fixed = true,
+ .perfmode = BIT(2),
+ .perfmode_bw = 16500000,
+ },
+ { /* sentinel */ },
+ },
+ },
+ }, {
.chip_ids = ADRENO_CHIP_IDS(0x44050a01),
.family = ADRENO_8XX_GEN2,
.fw = {
diff --git a/drivers/gpu/drm/msm/adreno/a8xx_gpu.c b/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
index 386ee1207622..5a320f5bde41 100644
--- a/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a8xx_gpu.c
@@ -190,6 +190,9 @@ static void a8xx_set_hwcg(struct msm_gpu *gpu, bool state)
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
u32 val;
+ if (adreno_is_x285(adreno_gpu) && state)
+ gpu_write(gpu, REG_A8XX_RBBM_CGC_0_PC, 0x00000702);
+
gmu_write(gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
gmu_write(gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL,
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 450e655f59a4..a44331dc0003 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -568,6 +568,11 @@ static inline int adreno_is_a8xx(struct adreno_gpu *gpu)
return gpu->info->family >= ADRENO_8XX_GEN1;
}
+static inline int adreno_is_x285(struct adreno_gpu *gpu)
+{
+ return gpu->info->chip_ids[0] == 0x44070001;
+}
+
static inline int adreno_is_a840(struct adreno_gpu *gpu)
{
return gpu->info->chip_ids[0] == 0x44050a01;
--
2.51.0
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