From: Jie Zhang <quic_ji...@quicinc.com>

Add support for Adreno 612 GPU found in SM6150/QCS615 chipsets.
A612 falls under ADRENO_6XX_GEN1 family and is a cut down version
of A615 GPU.

A612 has a new IP called Reduced Graphics Management Unit or RGMU
which is a small state machine which helps to toggle GX GDSC
(connected to CX rail) to implement IFPC feature. It doesn't support
any other features of a full fledged GMU like clock control, resource
voting to rpmh etc. So we need linux clock driver support like other
gmu-wrapper implementations to control gpu core clock and gpu GX gdsc.
Since there is no benefit with enabling RGMU at the moment, RGMU is
entirely skipped in this patch.

Signed-off-by: Jie Zhang <quic_ji...@quicinc.com>
Signed-off-by: Akhil P Oommen <quic_akhi...@quicinc.com>
Reviewed-by: Konrad Dybcio <konrad.dyb...@oss.qualcomm.com>
---
 drivers/gpu/drm/msm/adreno/a6xx_catalog.c | 15 +++++++++++++
 drivers/gpu/drm/msm/adreno/a6xx_gpu.c     | 35 ++++++++++++++++++++++++-------
 drivers/gpu/drm/msm/adreno/adreno_gpu.h   | 11 +++++++---
 3 files changed, 50 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c 
b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
index 5e389f6b8b8a..633a966a0c39 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_catalog.c
@@ -705,6 +705,21 @@ static const struct adreno_info a6xx_gpus[] = {
                        { 157, 3 },
                        { 127, 4 },
                ),
+       }, {
+               .chip_ids = ADRENO_CHIP_IDS(0x06010200),
+               .family = ADRENO_6XX_GEN1,
+               .fw = {
+                       [ADRENO_FW_SQE] = "a630_sqe.fw",
+               },
+               .gmem = (SZ_128K + SZ_4K),
+               .inactive_period = DRM_MSM_INACTIVE_PERIOD,
+               .init = a6xx_gpu_init,
+               .a6xx = &(const struct a6xx_info) {
+                       .hwcg = a612_hwcg,
+                       .protect = &a630_protect,
+                       .gmu_cgc_mode = 0x00000022,
+                       .prim_fifo_threshold = 0x00080000,
+               },
        }, {
                .chip_ids = ADRENO_CHIP_IDS(0x06010500),
                .family = ADRENO_6XX_GEN1,
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c 
b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
index a8b928d0f320..1af7bbed457a 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
@@ -504,15 +504,26 @@ static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state)
 
        if (adreno_is_a630(adreno_gpu))
                clock_cntl_on = 0x8aa8aa02;
-       else if (adreno_is_a610(adreno_gpu))
+       else if (adreno_is_a610(adreno_gpu) || adreno_is_a612(adreno_gpu))
                clock_cntl_on = 0xaaa8aa82;
        else if (adreno_is_a702(adreno_gpu))
                clock_cntl_on = 0xaaaaaa82;
        else
                clock_cntl_on = 0x8aa8aa82;
 
-       cgc_delay = adreno_is_a615_family(adreno_gpu) ? 0x111 : 0x10111;
-       cgc_hyst = adreno_is_a615_family(adreno_gpu) ? 0x555 : 0x5555;
+       if (adreno_is_a612(adreno_gpu))
+               cgc_delay = 0x11;
+       else if (adreno_is_a615_family(adreno_gpu))
+               cgc_delay = 0x111;
+       else
+               cgc_delay = 0x10111;
+
+       if (adreno_is_a612(adreno_gpu))
+               cgc_hyst = 0x55;
+       else if (adreno_is_a615_family(adreno_gpu))
+               cgc_delay = 0x555;
+       else
+               cgc_delay = 0x5555;
 
        gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
                        state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
@@ -600,6 +611,9 @@ static void a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
                gpu->ubwc_config.ubwc_swizzle = 0x7;
        }
 
+       if (adreno_is_a612(gpu))
+               gpu->ubwc_config.highest_bank_bit = 13;
+
        if (adreno_is_a618(gpu))
                gpu->ubwc_config.highest_bank_bit = 14;
 
@@ -1165,7 +1179,7 @@ static int hw_init(struct msm_gpu *gpu)
                gpu_write(gpu, REG_A6XX_CP_LPAC_PROG_FIFO_SIZE, 0x00000020);
 
        /* Setting the mem pool size */
-       if (adreno_is_a610(adreno_gpu)) {
+       if (adreno_is_a610(adreno_gpu) || adreno_is_a612(adreno_gpu)) {
                gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 48);
                gpu_write(gpu, REG_A6XX_CP_MEM_POOL_DBG_ADDR, 47);
        } else if (adreno_is_a702(adreno_gpu)) {
@@ -1199,7 +1213,7 @@ static int hw_init(struct msm_gpu *gpu)
 
        /* Enable fault detection */
        if (adreno_is_a730(adreno_gpu) ||
-           adreno_is_a740_family(adreno_gpu))
+           adreno_is_a740_family(adreno_gpu) || adreno_is_a612(adreno_gpu))
                gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) 
| 0xcfffff);
        else if (adreno_is_a690(adreno_gpu))
                gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) 
| 0x4fffff);
@@ -2076,6 +2090,9 @@ static int a6xx_pm_resume(struct msm_gpu *gpu)
        if (!ret)
                msm_devfreq_resume(gpu);
 
+       if (!(a6xx_gpu->base.info->quirks & ADRENO_QUIRK_NO_SYSCACHE))
+               a6xx_llc_activate(a6xx_gpu);
+
        return ret;
 }
 
@@ -2115,6 +2132,9 @@ static int a6xx_pm_suspend(struct msm_gpu *gpu)
 
        trace_msm_gpu_suspend(0);
 
+       if (!(a6xx_gpu->base.info->quirks & ADRENO_QUIRK_NO_SYSCACHE))
+               a6xx_llc_deactivate(a6xx_gpu);
+
        msm_devfreq_suspend(gpu);
 
        mutex_lock(&a6xx_gpu->gmu.lock);
@@ -2480,11 +2500,8 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
                  config->info->family == ADRENO_7XX_GEN2 ||
                  config->info->family == ADRENO_7XX_GEN3;
 
-       a6xx_llc_slices_init(pdev, a6xx_gpu, is_a7xx);
-
        ret = a6xx_set_supported_hw(&pdev->dev, config->info);
        if (ret) {
-               a6xx_llc_slices_destroy(a6xx_gpu);
                kfree(a6xx_gpu);
                return ERR_PTR(ret);
        }
@@ -2503,6 +2520,8 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev)
                return ERR_PTR(ret);
        }
 
+       a6xx_llc_slices_init(pdev, a6xx_gpu, is_a7xx);
+
        /*
         * For now only clamp to idle freq for devices where this is known not
         * to cause power supply issues:
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h 
b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
index 398be2218110..a6462a255611 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h
@@ -421,6 +421,11 @@ static inline int adreno_is_a610(const struct adreno_gpu 
*gpu)
        return adreno_is_revn(gpu, 610);
 }
 
+static inline int adreno_is_a612(const struct adreno_gpu *gpu)
+{
+       return gpu->info->chip_ids[0] == 0x06010200;
+}
+
 static inline int adreno_is_a618(const struct adreno_gpu *gpu)
 {
        return adreno_is_revn(gpu, 618);
@@ -490,9 +495,9 @@ static inline int adreno_is_a610_family(const struct 
adreno_gpu *gpu)
 {
        if (WARN_ON_ONCE(!gpu->info))
                return false;
-
-       /* TODO: A612 */
-       return adreno_is_a610(gpu) || adreno_is_a702(gpu);
+       return adreno_is_a610(gpu) ||
+              adreno_is_a612(gpu) ||
+              adreno_is_a702(gpu);
 }
 
 /* TODO: 615/616 */

-- 
2.45.2

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