diff options
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 91 | ||||
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/adreno_gpu.h | 2 |
2 files changed, 92 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index 8e4087361157..07c2cd2d5098 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -10,6 +10,7 @@ #include <linux/bitfield.h> #include <linux/devfreq.h> +#include <linux/firmware/qcom/qcom_scm.h> #include <linux/pm_domain.h> #include <linux/soc/qcom/llcc-qcom.h> @@ -824,7 +825,8 @@ static int a6xx_zap_shader_init(struct msm_gpu *gpu) A6XX_RBBM_INT_0_MASK_RBBM_HANG_DETECT | \ A6XX_RBBM_INT_0_MASK_UCHE_OOB_ACCESS | \ A6XX_RBBM_INT_0_MASK_UCHE_TRAP_INTR | \ - A6XX_RBBM_INT_0_MASK_TSBWRITEERROR) + A6XX_RBBM_INT_0_MASK_TSBWRITEERROR | \ + A6XX_RBBM_INT_0_MASK_SWFUSEVIOLATION) #define A7XX_APRIV_MASK (A6XX_CP_APRIV_CNTL_ICACHE | \ A6XX_CP_APRIV_CNTL_RBFETCH | \ @@ -1494,6 +1496,27 @@ static void a6xx_fault_detect_irq(struct msm_gpu *gpu) kthread_queue_work(gpu->worker, &gpu->recover_work); } +static void a7xx_sw_fuse_violation_irq(struct msm_gpu *gpu) +{ + u32 status; + + status = gpu_read(gpu, REG_A7XX_RBBM_SW_FUSE_INT_STATUS); + gpu_write(gpu, REG_A7XX_RBBM_SW_FUSE_INT_MASK, 0); + + dev_err_ratelimited(&gpu->pdev->dev, "SW fuse violation status=%8.8x\n", status); + + /* + * Ignore FASTBLEND violations, because the HW will silently fall back + * to legacy blending. + */ + if (status & (A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING | + A7XX_CX_MISC_SW_FUSE_VALUE_LPAC)) { + del_timer(&gpu->hangcheck_timer); + + kthread_queue_work(gpu->worker, &gpu->recover_work); + } +} + static irqreturn_t a6xx_irq(struct msm_gpu *gpu) { struct msm_drm_private *priv = gpu->dev->dev_private; @@ -1522,6 +1545,9 @@ static irqreturn_t a6xx_irq(struct msm_gpu *gpu) if (status & A6XX_RBBM_INT_0_MASK_UCHE_OOB_ACCESS) dev_err_ratelimited(&gpu->pdev->dev, "UCHE | Out of bounds access\n"); + if (status & A6XX_RBBM_INT_0_MASK_SWFUSEVIOLATION) + a7xx_sw_fuse_violation_irq(gpu); + if (status & A6XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS) msm_gpu_retire(gpu); @@ -1663,6 +1689,61 @@ static void a6xx_llc_slices_init(struct platform_device *pdev, a6xx_gpu->llc_mmio = ERR_PTR(-EINVAL); } +static int a7xx_cx_mem_init(struct a6xx_gpu *a6xx_gpu) +{ + struct adreno_gpu *adreno_gpu = &a6xx_gpu->base; + struct msm_gpu *gpu = &adreno_gpu->base; + u32 fuse_val; + int ret; + + if (adreno_is_a750(adreno_gpu)) { + /* + * Assume that if qcom scm isn't available, that whatever + * replacement allows writing the fuse register ourselves. + * Users of alternative firmware need to make sure this + * register is writeable or indicate that it's not somehow. + * Print a warning because if you mess this up you're about to + * crash horribly. + */ + if (!qcom_scm_is_available()) { + dev_warn_once(gpu->dev->dev, + "SCM is not available, poking fuse register\n"); + a6xx_llc_write(a6xx_gpu, REG_A7XX_CX_MISC_SW_FUSE_VALUE, + A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING | + A7XX_CX_MISC_SW_FUSE_VALUE_FASTBLEND | + A7XX_CX_MISC_SW_FUSE_VALUE_LPAC); + adreno_gpu->has_ray_tracing = true; + return 0; + } + + ret = qcom_scm_gpu_init_regs(QCOM_SCM_GPU_ALWAYS_EN_REQ | + QCOM_SCM_GPU_TSENSE_EN_REQ); + if (ret) + return ret; + + /* + * On a750 raytracing may be disabled by the firmware, find out + * whether that's the case. The scm call above sets the fuse + * register. + */ + fuse_val = a6xx_llc_read(a6xx_gpu, + REG_A7XX_CX_MISC_SW_FUSE_VALUE); + adreno_gpu->has_ray_tracing = + !!(fuse_val & A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING); + } else { + if (adreno_is_a740(adreno_gpu)) { + /* Raytracing is always enabled on a740 */ + adreno_gpu->has_ray_tracing = true; + } + + if (qcom_scm_is_available()) + return qcom_scm_gpu_init_regs(QCOM_SCM_GPU_ALWAYS_EN_REQ); + } + + return 0; +} + + #define GBIF_CLIENT_HALT_MASK BIT(0) #define GBIF_ARB_HALT_MASK BIT(1) #define VBIF_XIN_HALT_CTRL0_MASK GENMASK(3, 0) @@ -2233,6 +2314,14 @@ struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) return ERR_PTR(ret); } + if (adreno_is_a7xx(adreno_gpu)) { + ret = a7xx_cx_mem_init(a6xx_gpu); + if (ret) { + a6xx_destroy(&(a6xx_gpu->base.base)); + return ERR_PTR(ret); + } + } + if (gpu->aspace) msm_mmu_set_fault_handler(gpu->aspace->mmu, gpu, a6xx_fault_handler); diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.h b/drivers/gpu/drm/msm/adreno/adreno_gpu.h index b8ee9320a315..cff8ce541d2c 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.h +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.h @@ -206,6 +206,8 @@ struct adreno_gpu { */ const unsigned int *reg_offsets; bool gmu_is_wrapper; + + bool has_ray_tracing; }; #define to_adreno_gpu(x) container_of(x, struct adreno_gpu, base) |