diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a6xx_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 1322 |
1 files changed, 1322 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c new file mode 100644 index 000000000..29b40aced --- /dev/null +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -0,0 +1,1322 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2017-2019 The Linux Foundation. All rights reserved. */ + + +#include "msm_gem.h" +#include "msm_mmu.h" +#include "msm_gpu_trace.h" +#include "a6xx_gpu.h" +#include "a6xx_gmu.xml.h" + +#include <linux/devfreq.h> + +#define GPU_PAS_ID 13 + +static inline bool _a6xx_check_idle(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + /* Check that the GMU is idle */ + if (!a6xx_gmu_isidle(&a6xx_gpu->gmu)) + return false; + + /* Check tha the CX master is idle */ + if (gpu_read(gpu, REG_A6XX_RBBM_STATUS) & + ~A6XX_RBBM_STATUS_CP_AHB_BUSY_CX_MASTER) + return false; + + return !(gpu_read(gpu, REG_A6XX_RBBM_INT_0_STATUS) & + A6XX_RBBM_INT_0_MASK_RBBM_HANG_DETECT); +} + +bool a6xx_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + /* wait for CP to drain ringbuffer: */ + if (!adreno_idle(gpu, ring)) + return false; + + if (spin_until(_a6xx_check_idle(gpu))) { + DRM_ERROR("%s: %ps: timeout waiting for GPU to idle: status %8.8X irq %8.8X rptr/wptr %d/%d\n", + gpu->name, __builtin_return_address(0), + gpu_read(gpu, REG_A6XX_RBBM_STATUS), + gpu_read(gpu, REG_A6XX_RBBM_INT_0_STATUS), + gpu_read(gpu, REG_A6XX_CP_RB_RPTR), + gpu_read(gpu, REG_A6XX_CP_RB_WPTR)); + return false; + } + + return true; +} + +static void a6xx_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + uint32_t wptr; + unsigned long flags; + + /* Expanded APRIV doesn't need to issue the WHERE_AM_I opcode */ + if (a6xx_gpu->has_whereami && !adreno_gpu->base.hw_apriv) { + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + OUT_PKT7(ring, CP_WHERE_AM_I, 2); + OUT_RING(ring, lower_32_bits(shadowptr(a6xx_gpu, ring))); + OUT_RING(ring, upper_32_bits(shadowptr(a6xx_gpu, ring))); + } + + spin_lock_irqsave(&ring->preempt_lock, flags); + + /* Copy the shadow to the actual register */ + ring->cur = ring->next; + + /* Make sure to wrap wptr if we need to */ + wptr = get_wptr(ring); + + spin_unlock_irqrestore(&ring->preempt_lock, flags); + + /* Make sure everything is posted before making a decision */ + mb(); + + gpu_write(gpu, REG_A6XX_CP_RB_WPTR, wptr); +} + +static void get_stats_counter(struct msm_ringbuffer *ring, u32 counter, + u64 iova) +{ + OUT_PKT7(ring, CP_REG_TO_MEM, 3); + OUT_RING(ring, CP_REG_TO_MEM_0_REG(counter) | + CP_REG_TO_MEM_0_CNT(2) | + CP_REG_TO_MEM_0_64B); + OUT_RING(ring, lower_32_bits(iova)); + OUT_RING(ring, upper_32_bits(iova)); +} + +static void a6xx_set_pagetable(struct a6xx_gpu *a6xx_gpu, + struct msm_ringbuffer *ring, struct msm_file_private *ctx) +{ + phys_addr_t ttbr; + u32 asid; + u64 memptr = rbmemptr(ring, ttbr0); + + if (ctx->seqno == a6xx_gpu->cur_ctx_seqno) + return; + + if (msm_iommu_pagetable_params(ctx->aspace->mmu, &ttbr, &asid)) + return; + + /* Execute the table update */ + OUT_PKT7(ring, CP_SMMU_TABLE_UPDATE, 4); + OUT_RING(ring, CP_SMMU_TABLE_UPDATE_0_TTBR0_LO(lower_32_bits(ttbr))); + + OUT_RING(ring, + CP_SMMU_TABLE_UPDATE_1_TTBR0_HI(upper_32_bits(ttbr)) | + CP_SMMU_TABLE_UPDATE_1_ASID(asid)); + OUT_RING(ring, CP_SMMU_TABLE_UPDATE_2_CONTEXTIDR(0)); + OUT_RING(ring, CP_SMMU_TABLE_UPDATE_3_CONTEXTBANK(0)); + + /* + * Write the new TTBR0 to the memstore. This is good for debugging. + */ + OUT_PKT7(ring, CP_MEM_WRITE, 4); + OUT_RING(ring, CP_MEM_WRITE_0_ADDR_LO(lower_32_bits(memptr))); + OUT_RING(ring, CP_MEM_WRITE_1_ADDR_HI(upper_32_bits(memptr))); + OUT_RING(ring, lower_32_bits(ttbr)); + OUT_RING(ring, (asid << 16) | upper_32_bits(ttbr)); + + /* + * And finally, trigger a uche flush to be sure there isn't anything + * lingering in that part of the GPU + */ + + OUT_PKT7(ring, CP_EVENT_WRITE, 1); + OUT_RING(ring, 0x31); + + a6xx_gpu->cur_ctx_seqno = ctx->seqno; +} + +static void a6xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit) +{ + unsigned int index = submit->seqno % MSM_GPU_SUBMIT_STATS_COUNT; + struct msm_drm_private *priv = gpu->dev->dev_private; + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct msm_ringbuffer *ring = submit->ring; + unsigned int i; + + a6xx_set_pagetable(a6xx_gpu, ring, submit->queue->ctx); + + get_stats_counter(ring, REG_A6XX_RBBM_PERFCTR_CP_0_LO, + rbmemptr_stats(ring, index, cpcycles_start)); + + /* + * For PM4 the GMU register offsets are calculated from the base of the + * GPU registers so we need to add 0x1a800 to the register value on A630 + * to get the right value from PM4. + */ + get_stats_counter(ring, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO, + rbmemptr_stats(ring, index, alwayson_start)); + + /* Invalidate CCU depth and color */ + OUT_PKT7(ring, CP_EVENT_WRITE, 1); + OUT_RING(ring, CP_EVENT_WRITE_0_EVENT(PC_CCU_INVALIDATE_DEPTH)); + + OUT_PKT7(ring, CP_EVENT_WRITE, 1); + OUT_RING(ring, CP_EVENT_WRITE_0_EVENT(PC_CCU_INVALIDATE_COLOR)); + + /* Submit the commands */ + for (i = 0; i < submit->nr_cmds; i++) { + switch (submit->cmd[i].type) { + case MSM_SUBMIT_CMD_IB_TARGET_BUF: + break; + case MSM_SUBMIT_CMD_CTX_RESTORE_BUF: + if (priv->lastctx == submit->queue->ctx) + break; + fallthrough; + case MSM_SUBMIT_CMD_BUF: + OUT_PKT7(ring, CP_INDIRECT_BUFFER_PFE, 3); + OUT_RING(ring, lower_32_bits(submit->cmd[i].iova)); + OUT_RING(ring, upper_32_bits(submit->cmd[i].iova)); + OUT_RING(ring, submit->cmd[i].size); + break; + } + } + + get_stats_counter(ring, REG_A6XX_RBBM_PERFCTR_CP_0_LO, + rbmemptr_stats(ring, index, cpcycles_end)); + get_stats_counter(ring, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO, + rbmemptr_stats(ring, index, alwayson_end)); + + /* Write the fence to the scratch register */ + OUT_PKT4(ring, REG_A6XX_CP_SCRATCH_REG(2), 1); + OUT_RING(ring, submit->seqno); + + /* + * Execute a CACHE_FLUSH_TS event. This will ensure that the + * timestamp is written to the memory and then triggers the interrupt + */ + OUT_PKT7(ring, CP_EVENT_WRITE, 4); + OUT_RING(ring, CP_EVENT_WRITE_0_EVENT(CACHE_FLUSH_TS) | + CP_EVENT_WRITE_0_IRQ); + OUT_RING(ring, lower_32_bits(rbmemptr(ring, fence))); + OUT_RING(ring, upper_32_bits(rbmemptr(ring, fence))); + OUT_RING(ring, submit->seqno); + + trace_msm_gpu_submit_flush(submit, + gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO, + REG_A6XX_CP_ALWAYS_ON_COUNTER_HI)); + + a6xx_flush(gpu, ring); +} + +const struct adreno_reglist a630_hwcg[] = { + {REG_A6XX_RBBM_CLOCK_CNTL_SP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_SP1, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_SP2, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_SP3, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP0, 0x02022220}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP1, 0x02022220}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP2, 0x02022220}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP3, 0x02022220}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP1, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP2, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP3, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_HYST_SP0, 0x0000f3cf}, + {REG_A6XX_RBBM_CLOCK_HYST_SP1, 0x0000f3cf}, + {REG_A6XX_RBBM_CLOCK_HYST_SP2, 0x0000f3cf}, + {REG_A6XX_RBBM_CLOCK_HYST_SP3, 0x0000f3cf}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP1, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP2, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP3, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP1, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP2, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP3, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP1, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP2, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP3, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP0, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP1, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP2, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP3, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST_TP1, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST_TP2, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST_TP3, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP1, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP2, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP3, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP1, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP2, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP3, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP0, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP1, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP2, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP3, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP1, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP2, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP3, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP1, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP2, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP3, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP1, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP2, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP3, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP0, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP1, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP2, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP3, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_UCHE, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_UCHE, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_UCHE, 0x00222222}, + {REG_A6XX_RBBM_CLOCK_HYST_UCHE, 0x00000004}, + {REG_A6XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB1, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB2, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB3, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB0, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB1, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB2, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB3, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU0, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU1, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU2, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU3, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU0, 0x00040f00}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU1, 0x00040f00}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU2, 0x00040f00}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU3, 0x00040f00}, + {REG_A6XX_RBBM_CLOCK_CNTL_RAC, 0x05022022}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RAC, 0x00005555}, + {REG_A6XX_RBBM_CLOCK_DELAY_RAC, 0x00000011}, + {REG_A6XX_RBBM_CLOCK_HYST_RAC, 0x00445044}, + {REG_A6XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A6XX_RBBM_CLOCK_MODE_GPC, 0x00222222}, + {REG_A6XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A6XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A6XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A6XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ_2, 0x00000002}, + {REG_A6XX_RBBM_CLOCK_MODE_HLSQ, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222}, + {REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111}, + {REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555}, + {}, +}; + +const struct adreno_reglist a640_hwcg[] = { + {REG_A6XX_RBBM_CLOCK_CNTL_SP0, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_HYST_SP0, 0x0000F3CF}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP0, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP0, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP0, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB0, 0x01002222}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU0, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU0, 0x00040F00}, + {REG_A6XX_RBBM_CLOCK_CNTL_RAC, 0x05222022}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RAC, 0x00005555}, + {REG_A6XX_RBBM_CLOCK_DELAY_RAC, 0x00000011}, + {REG_A6XX_RBBM_CLOCK_HYST_RAC, 0x00445044}, + {REG_A6XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A6XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_MODE_GPC, 0x00222222}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ_2, 0x00000002}, + {REG_A6XX_RBBM_CLOCK_MODE_HLSQ, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A6XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A6XX_RBBM_CLOCK_HYST_HLSQ, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_CNTL_TEX_FCHE, 0x00000222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TEX_FCHE, 0x00000111}, + {REG_A6XX_RBBM_CLOCK_HYST_TEX_FCHE, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_HYST_UCHE, 0x00000004}, + {REG_A6XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A6XX_RBBM_ISDB_CNT, 0x00000182}, + {REG_A6XX_RBBM_RAC_THRESHOLD_CNT, 0x00000000}, + {REG_A6XX_RBBM_SP_HYST_CNT, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222}, + {REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111}, + {REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555}, + {}, +}; + +const struct adreno_reglist a650_hwcg[] = { + {REG_A6XX_RBBM_CLOCK_CNTL_SP0, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220}, + {REG_A6XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A6XX_RBBM_CLOCK_HYST_SP0, 0x0000F3CF}, + {REG_A6XX_RBBM_CLOCK_CNTL_TP0, 0x02222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL3_TP0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL4_TP0, 0x00022222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY3_TP0, 0x11111111}, + {REG_A6XX_RBBM_CLOCK_DELAY4_TP0, 0x00011111}, + {REG_A6XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST3_TP0, 0x77777777}, + {REG_A6XX_RBBM_CLOCK_HYST4_TP0, 0x00077777}, + {REG_A6XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RB0, 0x01002222}, + {REG_A6XX_RBBM_CLOCK_CNTL_CCU0, 0x00002220}, + {REG_A6XX_RBBM_CLOCK_HYST_RB_CCU0, 0x00040F00}, + {REG_A6XX_RBBM_CLOCK_CNTL_RAC, 0x25222022}, + {REG_A6XX_RBBM_CLOCK_CNTL2_RAC, 0x00005555}, + {REG_A6XX_RBBM_CLOCK_DELAY_RAC, 0x00000011}, + {REG_A6XX_RBBM_CLOCK_HYST_RAC, 0x00445044}, + {REG_A6XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A6XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_MODE_GPC, 0x00222222}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ_2, 0x00000002}, + {REG_A6XX_RBBM_CLOCK_MODE_HLSQ, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A6XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}, + {REG_A6XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A6XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A6XX_RBBM_CLOCK_HYST_HLSQ, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_CNTL_TEX_FCHE, 0x00000222}, + {REG_A6XX_RBBM_CLOCK_DELAY_TEX_FCHE, 0x00000111}, + {REG_A6XX_RBBM_CLOCK_HYST_TEX_FCHE, 0x00000777}, + {REG_A6XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A6XX_RBBM_CLOCK_HYST_UCHE, 0x00000004}, + {REG_A6XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A6XX_RBBM_ISDB_CNT, 0x00000182}, + {REG_A6XX_RBBM_RAC_THRESHOLD_CNT, 0x00000000}, + {REG_A6XX_RBBM_SP_HYST_CNT, 0x00000000}, + {REG_A6XX_RBBM_CLOCK_CNTL_GMU_GX, 0x00000222}, + {REG_A6XX_RBBM_CLOCK_DELAY_GMU_GX, 0x00000111}, + {REG_A6XX_RBBM_CLOCK_HYST_GMU_GX, 0x00000555}, + {}, +}; + +static void a6xx_set_hwcg(struct msm_gpu *gpu, bool state) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct a6xx_gmu *gmu = &a6xx_gpu->gmu; + const struct adreno_reglist *reg; + unsigned int i; + u32 val, clock_cntl_on; + + if (!adreno_gpu->info->hwcg) + return; + + if (adreno_is_a630(adreno_gpu)) + clock_cntl_on = 0x8aa8aa02; + else + clock_cntl_on = 0x8aa8aa82; + + val = gpu_read(gpu, REG_A6XX_RBBM_CLOCK_CNTL); + + /* Don't re-program the registers if they are already correct */ + if ((!state && !val) || (state && (val == clock_cntl_on))) + return; + + /* Disable SP clock before programming HWCG registers */ + gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 1, 0); + + for (i = 0; (reg = &adreno_gpu->info->hwcg[i], reg->offset); i++) + gpu_write(gpu, reg->offset, state ? reg->value : 0); + + /* Enable SP clock */ + gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 0, 1); + + gpu_write(gpu, REG_A6XX_RBBM_CLOCK_CNTL, state ? clock_cntl_on : 0); +} + +/* For a615, a616, a618, A619, a630, a640 and a680 */ +static const u32 a6xx_protect[] = { + A6XX_PROTECT_RDONLY(0x00000, 0x04ff), + A6XX_PROTECT_RDONLY(0x00501, 0x0005), + A6XX_PROTECT_RDONLY(0x0050b, 0x02f4), + A6XX_PROTECT_NORDWR(0x0050e, 0x0000), + A6XX_PROTECT_NORDWR(0x00510, 0x0000), + A6XX_PROTECT_NORDWR(0x00534, 0x0000), + A6XX_PROTECT_NORDWR(0x00800, 0x0082), + A6XX_PROTECT_NORDWR(0x008a0, 0x0008), + A6XX_PROTECT_NORDWR(0x008ab, 0x0024), + A6XX_PROTECT_RDONLY(0x008de, 0x00ae), + A6XX_PROTECT_NORDWR(0x00900, 0x004d), + A6XX_PROTECT_NORDWR(0x0098d, 0x0272), + A6XX_PROTECT_NORDWR(0x00e00, 0x0001), + A6XX_PROTECT_NORDWR(0x00e03, 0x000c), + A6XX_PROTECT_NORDWR(0x03c00, 0x00c3), + A6XX_PROTECT_RDONLY(0x03cc4, 0x1fff), + A6XX_PROTECT_NORDWR(0x08630, 0x01cf), + A6XX_PROTECT_NORDWR(0x08e00, 0x0000), + A6XX_PROTECT_NORDWR(0x08e08, 0x0000), + A6XX_PROTECT_NORDWR(0x08e50, 0x001f), + A6XX_PROTECT_NORDWR(0x09624, 0x01db), + A6XX_PROTECT_NORDWR(0x09e70, 0x0001), + A6XX_PROTECT_NORDWR(0x09e78, 0x0187), + A6XX_PROTECT_NORDWR(0x0a630, 0x01cf), + A6XX_PROTECT_NORDWR(0x0ae02, 0x0000), + A6XX_PROTECT_NORDWR(0x0ae50, 0x032f), + A6XX_PROTECT_NORDWR(0x0b604, 0x0000), + A6XX_PROTECT_NORDWR(0x0be02, 0x0001), + A6XX_PROTECT_NORDWR(0x0be20, 0x17df), + A6XX_PROTECT_NORDWR(0x0f000, 0x0bff), + A6XX_PROTECT_RDONLY(0x0fc00, 0x1fff), + A6XX_PROTECT_NORDWR(0x11c00, 0x0000), /* note: infinite range */ +}; + +/* These are for a620 and a650 */ +static const u32 a650_protect[] = { + A6XX_PROTECT_RDONLY(0x00000, 0x04ff), + A6XX_PROTECT_RDONLY(0x00501, 0x0005), + A6XX_PROTECT_RDONLY(0x0050b, 0x02f4), + A6XX_PROTECT_NORDWR(0x0050e, 0x0000), + A6XX_PROTECT_NORDWR(0x00510, 0x0000), + A6XX_PROTECT_NORDWR(0x00534, 0x0000), + A6XX_PROTECT_NORDWR(0x00800, 0x0082), + A6XX_PROTECT_NORDWR(0x008a0, 0x0008), + A6XX_PROTECT_NORDWR(0x008ab, 0x0024), + A6XX_PROTECT_RDONLY(0x008de, 0x00ae), + A6XX_PROTECT_NORDWR(0x00900, 0x004d), + A6XX_PROTECT_NORDWR(0x0098d, 0x0272), + A6XX_PROTECT_NORDWR(0x00e00, 0x0001), + A6XX_PROTECT_NORDWR(0x00e03, 0x000c), + A6XX_PROTECT_NORDWR(0x03c00, 0x00c3), + A6XX_PROTECT_RDONLY(0x03cc4, 0x1fff), + A6XX_PROTECT_NORDWR(0x08630, 0x01cf), + A6XX_PROTECT_NORDWR(0x08e00, 0x0000), + A6XX_PROTECT_NORDWR(0x08e08, 0x0000), + A6XX_PROTECT_NORDWR(0x08e50, 0x001f), + A6XX_PROTECT_NORDWR(0x08e80, 0x027f), + A6XX_PROTECT_NORDWR(0x09624, 0x01db), + A6XX_PROTECT_NORDWR(0x09e60, 0x0011), + A6XX_PROTECT_NORDWR(0x09e78, 0x0187), + A6XX_PROTECT_NORDWR(0x0a630, 0x01cf), + A6XX_PROTECT_NORDWR(0x0ae02, 0x0000), + A6XX_PROTECT_NORDWR(0x0ae50, 0x032f), + A6XX_PROTECT_NORDWR(0x0b604, 0x0000), + A6XX_PROTECT_NORDWR(0x0b608, 0x0007), + A6XX_PROTECT_NORDWR(0x0be02, 0x0001), + A6XX_PROTECT_NORDWR(0x0be20, 0x17df), + A6XX_PROTECT_NORDWR(0x0f000, 0x0bff), + A6XX_PROTECT_RDONLY(0x0fc00, 0x1fff), + A6XX_PROTECT_NORDWR(0x18400, 0x1fff), + A6XX_PROTECT_NORDWR(0x1a800, 0x1fff), + A6XX_PROTECT_NORDWR(0x1f400, 0x0443), + A6XX_PROTECT_RDONLY(0x1f844, 0x007b), + A6XX_PROTECT_NORDWR(0x1f887, 0x001b), + A6XX_PROTECT_NORDWR(0x1f8c0, 0x0000), /* note: infinite range */ +}; + +static void a6xx_set_cp_protect(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + const u32 *regs = a6xx_protect; + unsigned i, count = ARRAY_SIZE(a6xx_protect), count_max = 32; + + BUILD_BUG_ON(ARRAY_SIZE(a6xx_protect) > 32); + BUILD_BUG_ON(ARRAY_SIZE(a650_protect) > 48); + + if (adreno_is_a650(adreno_gpu)) { + regs = a650_protect; + count = ARRAY_SIZE(a650_protect); + count_max = 48; + } + + /* + * Enable access protection to privileged registers, fault on an access + * protect violation and select the last span to protect from the start + * address all the way to the end of the register address space + */ + gpu_write(gpu, REG_A6XX_CP_PROTECT_CNTL, BIT(0) | BIT(1) | BIT(3)); + + for (i = 0; i < count - 1; i++) + gpu_write(gpu, REG_A6XX_CP_PROTECT(i), regs[i]); + /* last CP_PROTECT to have "infinite" length on the last entry */ + gpu_write(gpu, REG_A6XX_CP_PROTECT(count_max - 1), regs[i]); +} + +static void a6xx_set_ubwc_config(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + u32 lower_bit = 2; + u32 amsbc = 0; + u32 rgb565_predicator = 0; + u32 uavflagprd_inv = 0; + + /* a618 is using the hw default values */ + if (adreno_is_a618(adreno_gpu)) + return; + + if (adreno_is_a640(adreno_gpu)) + amsbc = 1; + + if (adreno_is_a650(adreno_gpu)) { + /* TODO: get ddr type from bootloader and use 2 for LPDDR4 */ + lower_bit = 3; + amsbc = 1; + rgb565_predicator = 1; + uavflagprd_inv = 2; + } + + gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL, + rgb565_predicator << 11 | amsbc << 4 | lower_bit << 1); + gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL, lower_bit << 1); + gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL, + uavflagprd_inv << 4 | lower_bit << 1); + gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL, lower_bit << 21); +} + +static int a6xx_cp_init(struct msm_gpu *gpu) +{ + struct msm_ringbuffer *ring = gpu->rb[0]; + + OUT_PKT7(ring, CP_ME_INIT, 8); + + OUT_RING(ring, 0x0000002f); + + /* Enable multiple hardware contexts */ + OUT_RING(ring, 0x00000003); + + /* Enable error detection */ + OUT_RING(ring, 0x20000000); + + /* Don't enable header dump */ + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + + /* No workarounds enabled */ + OUT_RING(ring, 0x00000000); + + /* Pad rest of the cmds with 0's */ + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + + a6xx_flush(gpu, ring); + return a6xx_idle(gpu, ring) ? 0 : -EINVAL; +} + +static void a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu, + struct drm_gem_object *obj) +{ + u32 *buf = msm_gem_get_vaddr_active(obj); + + if (IS_ERR(buf)) + return; + + /* + * If the lowest nibble is 0xa that is an indication that this microcode + * has been patched. The actual version is in dword [3] but we only care + * about the patchlevel which is the lowest nibble of dword [3] + * + * Otherwise check that the firmware is greater than or equal to 1.90 + * which was the first version that had this fix built in + */ + if (((buf[0] & 0xf) == 0xa) && (buf[2] & 0xf) >= 1) + a6xx_gpu->has_whereami = true; + else if ((buf[0] & 0xfff) > 0x190) + a6xx_gpu->has_whereami = true; + + msm_gem_put_vaddr(obj); +} + +static int a6xx_ucode_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + if (!a6xx_gpu->sqe_bo) { + a6xx_gpu->sqe_bo = adreno_fw_create_bo(gpu, + adreno_gpu->fw[ADRENO_FW_SQE], &a6xx_gpu->sqe_iova); + + if (IS_ERR(a6xx_gpu->sqe_bo)) { + int ret = PTR_ERR(a6xx_gpu->sqe_bo); + + a6xx_gpu->sqe_bo = NULL; + DRM_DEV_ERROR(&gpu->pdev->dev, + "Could not allocate SQE ucode: %d\n", ret); + + return ret; + } + + msm_gem_object_set_name(a6xx_gpu->sqe_bo, "sqefw"); + a6xx_ucode_check_version(a6xx_gpu, a6xx_gpu->sqe_bo); + } + + gpu_write64(gpu, REG_A6XX_CP_SQE_INSTR_BASE_LO, + REG_A6XX_CP_SQE_INSTR_BASE_HI, a6xx_gpu->sqe_iova); + + return 0; +} + +static int a6xx_zap_shader_init(struct msm_gpu *gpu) +{ + static bool loaded; + int ret; + + if (loaded) + return 0; + + ret = adreno_zap_shader_load(gpu, GPU_PAS_ID); + + loaded = !ret; + return ret; +} + +#define A6XX_INT_MASK (A6XX_RBBM_INT_0_MASK_CP_AHB_ERROR | \ + A6XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNCFIFO_OVERFLOW | \ + A6XX_RBBM_INT_0_MASK_CP_HW_ERROR | \ + A6XX_RBBM_INT_0_MASK_CP_IB2 | \ + A6XX_RBBM_INT_0_MASK_CP_IB1 | \ + A6XX_RBBM_INT_0_MASK_CP_RB | \ + A6XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS | \ + A6XX_RBBM_INT_0_MASK_RBBM_ATB_BUS_OVERFLOW | \ + A6XX_RBBM_INT_0_MASK_RBBM_HANG_DETECT | \ + A6XX_RBBM_INT_0_MASK_UCHE_OOB_ACCESS | \ + A6XX_RBBM_INT_0_MASK_UCHE_TRAP_INTR) + +static int a6xx_hw_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + int ret; + + /* Make sure the GMU keeps the GPU on while we set it up */ + a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); + + gpu_write(gpu, REG_A6XX_RBBM_SECVID_TSB_CNTL, 0); + + /* + * Disable the trusted memory range - we don't actually supported secure + * memory rendering at this point in time and we don't want to block off + * part of the virtual memory space. + */ + gpu_write64(gpu, REG_A6XX_RBBM_SECVID_TSB_TRUSTED_BASE_LO, + REG_A6XX_RBBM_SECVID_TSB_TRUSTED_BASE_HI, 0x00000000); + gpu_write(gpu, REG_A6XX_RBBM_SECVID_TSB_TRUSTED_SIZE, 0x00000000); + + /* Turn on 64 bit addressing for all blocks */ + gpu_write(gpu, REG_A6XX_CP_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_VSC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_GRAS_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_RB_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_PC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_HLSQ_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_VFD_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_VPC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_UCHE_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_SP_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_TPL1_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A6XX_RBBM_SECVID_TSB_ADDR_MODE_CNTL, 0x1); + + /* enable hardware clockgating */ + a6xx_set_hwcg(gpu, true); + + /* VBIF/GBIF start*/ + if (adreno_is_a640(adreno_gpu) || adreno_is_a650(adreno_gpu)) { + gpu_write(gpu, REG_A6XX_GBIF_QSB_SIDE0, 0x00071620); + gpu_write(gpu, REG_A6XX_GBIF_QSB_SIDE1, 0x00071620); + gpu_write(gpu, REG_A6XX_GBIF_QSB_SIDE2, 0x00071620); + gpu_write(gpu, REG_A6XX_GBIF_QSB_SIDE3, 0x00071620); + gpu_write(gpu, REG_A6XX_GBIF_QSB_SIDE3, 0x00071620); + gpu_write(gpu, REG_A6XX_RBBM_GBIF_CLIENT_QOS_CNTL, 0x3); + } else { + gpu_write(gpu, REG_A6XX_RBBM_VBIF_CLIENT_QOS_CNTL, 0x3); + } + + if (adreno_is_a630(adreno_gpu)) + gpu_write(gpu, REG_A6XX_VBIF_GATE_OFF_WRREQ_EN, 0x00000009); + + /* Make all blocks contribute to the GPU BUSY perf counter */ + gpu_write(gpu, REG_A6XX_RBBM_PERFCTR_GPU_BUSY_MASKED, 0xffffffff); + + /* Disable L2 bypass in the UCHE */ + gpu_write(gpu, REG_A6XX_UCHE_WRITE_RANGE_MAX_LO, 0xffffffc0); + gpu_write(gpu, REG_A6XX_UCHE_WRITE_RANGE_MAX_HI, 0x0001ffff); + gpu_write(gpu, REG_A6XX_UCHE_TRAP_BASE_LO, 0xfffff000); + gpu_write(gpu, REG_A6XX_UCHE_TRAP_BASE_HI, 0x0001ffff); + gpu_write(gpu, REG_A6XX_UCHE_WRITE_THRU_BASE_LO, 0xfffff000); + gpu_write(gpu, REG_A6XX_UCHE_WRITE_THRU_BASE_HI, 0x0001ffff); + + if (!adreno_is_a650(adreno_gpu)) { + /* Set the GMEM VA range [0x100000:0x100000 + gpu->gmem - 1] */ + gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MIN_LO, + REG_A6XX_UCHE_GMEM_RANGE_MIN_HI, 0x00100000); + + gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MAX_LO, + REG_A6XX_UCHE_GMEM_RANGE_MAX_HI, + 0x00100000 + adreno_gpu->gmem - 1); + } + + gpu_write(gpu, REG_A6XX_UCHE_FILTER_CNTL, 0x804); + gpu_write(gpu, REG_A6XX_UCHE_CACHE_WAYS, 0x4); + + if (adreno_is_a640(adreno_gpu) || adreno_is_a650(adreno_gpu)) + gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x02000140); + else + gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x010000c0); + gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x8040362c); + + /* Setting the mem pool size */ + gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 128); + + /* Setting the primFifo thresholds default values */ + if (adreno_is_a650(adreno_gpu)) + gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00300000); + else if (adreno_is_a640(adreno_gpu)) + gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, 0x00200000); + else + gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL, (0x300 << 11)); + + /* Set the AHB default slave response to "ERROR" */ + gpu_write(gpu, REG_A6XX_CP_AHB_CNTL, 0x1); + + /* Turn on performance counters */ + gpu_write(gpu, REG_A6XX_RBBM_PERFCTR_CNTL, 0x1); + + /* Select CP0 to always count cycles */ + gpu_write(gpu, REG_A6XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT); + + a6xx_set_ubwc_config(gpu); + + /* Enable fault detection */ + gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, + (1 << 30) | 0x1fffff); + + gpu_write(gpu, REG_A6XX_UCHE_CLIENT_PF, 1); + + /* Set weights for bicubic filtering */ + if (adreno_is_a650(adreno_gpu)) { + gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_0, 0); + gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_1, + 0x3fe05ff4); + gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_2, + 0x3fa0ebee); + gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_3, + 0x3f5193ed); + gpu_write(gpu, REG_A6XX_TPL1_BICUBIC_WEIGHTS_TABLE_4, + 0x3f0243f0); + } + + /* Protect registers from the CP */ + a6xx_set_cp_protect(gpu); + + /* Enable expanded apriv for targets that support it */ + if (gpu->hw_apriv) { + gpu_write(gpu, REG_A6XX_CP_APRIV_CNTL, + (1 << 6) | (1 << 5) | (1 << 3) | (1 << 2) | (1 << 1)); + } + + /* Enable interrupts */ + gpu_write(gpu, REG_A6XX_RBBM_INT_0_MASK, A6XX_INT_MASK); + + ret = adreno_hw_init(gpu); + if (ret) + goto out; + + ret = a6xx_ucode_init(gpu); + if (ret) + goto out; + + /* Set the ringbuffer address */ + gpu_write64(gpu, REG_A6XX_CP_RB_BASE, REG_A6XX_CP_RB_BASE_HI, + gpu->rb[0]->iova); + + /* Targets that support extended APRIV can use the RPTR shadow from + * hardware but all the other ones need to disable the feature. Targets + * that support the WHERE_AM_I opcode can use that instead + */ + if (adreno_gpu->base.hw_apriv) + gpu_write(gpu, REG_A6XX_CP_RB_CNTL, MSM_GPU_RB_CNTL_DEFAULT); + else + gpu_write(gpu, REG_A6XX_CP_RB_CNTL, + MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE); + + /* + * Expanded APRIV and targets that support WHERE_AM_I both need a + * privileged buffer to store the RPTR shadow + */ + + if (adreno_gpu->base.hw_apriv || a6xx_gpu->has_whereami) { + if (!a6xx_gpu->shadow_bo) { + a6xx_gpu->shadow = msm_gem_kernel_new_locked(gpu->dev, + sizeof(u32) * gpu->nr_rings, + MSM_BO_UNCACHED | MSM_BO_MAP_PRIV, + gpu->aspace, &a6xx_gpu->shadow_bo, + &a6xx_gpu->shadow_iova); + + if (IS_ERR(a6xx_gpu->shadow)) + return PTR_ERR(a6xx_gpu->shadow); + } + + gpu_write64(gpu, REG_A6XX_CP_RB_RPTR_ADDR_LO, + REG_A6XX_CP_RB_RPTR_ADDR_HI, + shadowptr(a6xx_gpu, gpu->rb[0])); + } + + /* Always come up on rb 0 */ + a6xx_gpu->cur_ring = gpu->rb[0]; + + a6xx_gpu->cur_ctx_seqno = 0; + + /* Enable the SQE_to start the CP engine */ + gpu_write(gpu, REG_A6XX_CP_SQE_CNTL, 1); + + ret = a6xx_cp_init(gpu); + if (ret) + goto out; + + /* + * Try to load a zap shader into the secure world. If successful + * we can use the CP to switch out of secure mode. If not then we + * have no resource but to try to switch ourselves out manually. If we + * guessed wrong then access to the RBBM_SECVID_TRUST_CNTL register will + * be blocked and a permissions violation will soon follow. + */ + ret = a6xx_zap_shader_init(gpu); + if (!ret) { + OUT_PKT7(gpu->rb[0], CP_SET_SECURE_MODE, 1); + OUT_RING(gpu->rb[0], 0x00000000); + + a6xx_flush(gpu, gpu->rb[0]); + if (!a6xx_idle(gpu, gpu->rb[0])) + return -EINVAL; + } else if (ret == -ENODEV) { + /* + * This device does not use zap shader (but print a warning + * just in case someone got their dt wrong.. hopefully they + * have a debug UART to realize the error of their ways... + * if you mess this up you are about to crash horribly) + */ + dev_warn_once(gpu->dev->dev, + "Zap shader not enabled - using SECVID_TRUST_CNTL instead\n"); + gpu_write(gpu, REG_A6XX_RBBM_SECVID_TRUST_CNTL, 0x0); + ret = 0; + } else { + return ret; + } + +out: + /* + * Tell the GMU that we are done touching the GPU and it can start power + * management + */ + a6xx_gmu_clear_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET); + + if (a6xx_gpu->gmu.legacy) { + /* Take the GMU out of its special boot mode */ + a6xx_gmu_clear_oob(&a6xx_gpu->gmu, GMU_OOB_BOOT_SLUMBER); + } + + return ret; +} + +static void a6xx_dump(struct msm_gpu *gpu) +{ + DRM_DEV_INFO(&gpu->pdev->dev, "status: %08x\n", + gpu_read(gpu, REG_A6XX_RBBM_STATUS)); + adreno_dump(gpu); +} + +#define VBIF_RESET_ACK_TIMEOUT 100 +#define VBIF_RESET_ACK_MASK 0x00f0 + +static void a6xx_recover(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + int i; + + adreno_dump_info(gpu); + + for (i = 0; i < 8; i++) + DRM_DEV_INFO(&gpu->pdev->dev, "CP_SCRATCH_REG%d: %u\n", i, + gpu_read(gpu, REG_A6XX_CP_SCRATCH_REG(i))); + + if (hang_debug) + a6xx_dump(gpu); + + /* + * Turn off keep alive that might have been enabled by the hang + * interrupt + */ + gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 0); + + gpu->funcs->pm_suspend(gpu); + gpu->funcs->pm_resume(gpu); + + msm_gpu_hw_init(gpu); +} + +static int a6xx_fault_handler(void *arg, unsigned long iova, int flags) +{ + struct msm_gpu *gpu = arg; + + pr_warn_ratelimited("*** gpu fault: iova=%08lx, flags=%d (%u,%u,%u,%u)\n", + iova, flags, + gpu_read(gpu, REG_A6XX_CP_SCRATCH_REG(4)), + gpu_read(gpu, REG_A6XX_CP_SCRATCH_REG(5)), + gpu_read(gpu, REG_A6XX_CP_SCRATCH_REG(6)), + gpu_read(gpu, REG_A6XX_CP_SCRATCH_REG(7))); + + return -EFAULT; +} + +static void a6xx_cp_hw_err_irq(struct msm_gpu *gpu) +{ + u32 status = gpu_read(gpu, REG_A6XX_CP_INTERRUPT_STATUS); + + if (status & A6XX_CP_INT_CP_OPCODE_ERROR) { + u32 val; + + gpu_write(gpu, REG_A6XX_CP_SQE_STAT_ADDR, 1); + val = gpu_read(gpu, REG_A6XX_CP_SQE_STAT_DATA); + dev_err_ratelimited(&gpu->pdev->dev, + "CP | opcode error | possible opcode=0x%8.8X\n", + val); + } + + if (status & A6XX_CP_INT_CP_UCODE_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, + "CP ucode error interrupt\n"); + + if (status & A6XX_CP_INT_CP_HW_FAULT_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, "CP | HW fault | status=0x%8.8X\n", + gpu_read(gpu, REG_A6XX_CP_HW_FAULT)); + + if (status & A6XX_CP_INT_CP_REGISTER_PROTECTION_ERROR) { + u32 val = gpu_read(gpu, REG_A6XX_CP_PROTECT_STATUS); + + dev_err_ratelimited(&gpu->pdev->dev, + "CP | protected mode error | %s | addr=0x%8.8X | status=0x%8.8X\n", + val & (1 << 20) ? "READ" : "WRITE", + (val & 0x3ffff), val); + } + + if (status & A6XX_CP_INT_CP_AHB_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, "CP AHB error interrupt\n"); + + if (status & A6XX_CP_INT_CP_VSD_PARITY_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, "CP VSD decoder parity error\n"); + + if (status & A6XX_CP_INT_CP_ILLEGAL_INSTR_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, "CP illegal instruction error\n"); + +} + +static void a6xx_fault_detect_irq(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + struct drm_device *dev = gpu->dev; + struct msm_drm_private *priv = dev->dev_private; + struct msm_ringbuffer *ring = gpu->funcs->active_ring(gpu); + + /* + * Force the GPU to stay on until after we finish + * collecting information + */ + gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_GMU_PWR_COL_KEEPALIVE, 1); + + DRM_DEV_ERROR(&gpu->pdev->dev, + "gpu fault ring %d fence %x status %8.8X rb %4.4x/%4.4x ib1 %16.16llX/%4.4x ib2 %16.16llX/%4.4x\n", + ring ? ring->id : -1, ring ? ring->seqno : 0, + gpu_read(gpu, REG_A6XX_RBBM_STATUS), + gpu_read(gpu, REG_A6XX_CP_RB_RPTR), + gpu_read(gpu, REG_A6XX_CP_RB_WPTR), + gpu_read64(gpu, REG_A6XX_CP_IB1_BASE, REG_A6XX_CP_IB1_BASE_HI), + gpu_read(gpu, REG_A6XX_CP_IB1_REM_SIZE), + gpu_read64(gpu, REG_A6XX_CP_IB2_BASE, REG_A6XX_CP_IB2_BASE_HI), + gpu_read(gpu, REG_A6XX_CP_IB2_REM_SIZE)); + + /* Turn off the hangcheck timer to keep it from bothering us */ + del_timer(&gpu->hangcheck_timer); + + queue_work(priv->wq, &gpu->recover_work); +} + +static irqreturn_t a6xx_irq(struct msm_gpu *gpu) +{ + u32 status = gpu_read(gpu, REG_A6XX_RBBM_INT_0_STATUS); + + gpu_write(gpu, REG_A6XX_RBBM_INT_CLEAR_CMD, status); + + if (status & A6XX_RBBM_INT_0_MASK_RBBM_HANG_DETECT) + a6xx_fault_detect_irq(gpu); + + if (status & A6XX_RBBM_INT_0_MASK_CP_AHB_ERROR) + dev_err_ratelimited(&gpu->pdev->dev, "CP | AHB bus error\n"); + + if (status & A6XX_RBBM_INT_0_MASK_CP_HW_ERROR) + a6xx_cp_hw_err_irq(gpu); + + if (status & A6XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNCFIFO_OVERFLOW) + dev_err_ratelimited(&gpu->pdev->dev, "RBBM | ATB ASYNC overflow\n"); + + if (status & A6XX_RBBM_INT_0_MASK_RBBM_ATB_BUS_OVERFLOW) + dev_err_ratelimited(&gpu->pdev->dev, "RBBM | ATB bus overflow\n"); + + 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_CP_CACHE_FLUSH_TS) + msm_gpu_retire(gpu); + + return IRQ_HANDLED; +} + +static int a6xx_pm_resume(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + int ret; + + gpu->needs_hw_init = true; + + trace_msm_gpu_resume(0); + + ret = a6xx_gmu_resume(a6xx_gpu); + if (ret) + return ret; + + msm_gpu_resume_devfreq(gpu); + + return 0; +} + +static int a6xx_pm_suspend(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + int i, ret; + + trace_msm_gpu_suspend(0); + + devfreq_suspend_device(gpu->devfreq.devfreq); + + ret = a6xx_gmu_stop(a6xx_gpu); + if (ret) + return ret; + + if (a6xx_gpu->shadow_bo) + for (i = 0; i < gpu->nr_rings; i++) + a6xx_gpu->shadow[i] = 0; + + return 0; +} + +static int a6xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + static DEFINE_MUTEX(perfcounter_oob); + + mutex_lock(&perfcounter_oob); + + /* Force the GPU power on so we can read this register */ + a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_PERFCOUNTER_SET); + + *value = gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER_LO, + REG_A6XX_CP_ALWAYS_ON_COUNTER_HI); + + a6xx_gmu_clear_oob(&a6xx_gpu->gmu, GMU_OOB_PERFCOUNTER_SET); + mutex_unlock(&perfcounter_oob); + return 0; +} + +static struct msm_ringbuffer *a6xx_active_ring(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + return a6xx_gpu->cur_ring; +} + +static void a6xx_destroy(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + if (a6xx_gpu->sqe_bo) { + msm_gem_unpin_iova(a6xx_gpu->sqe_bo, gpu->aspace); + drm_gem_object_put(a6xx_gpu->sqe_bo); + } + + if (a6xx_gpu->shadow_bo) { + msm_gem_unpin_iova(a6xx_gpu->shadow_bo, gpu->aspace); + drm_gem_object_put(a6xx_gpu->shadow_bo); + } + + a6xx_gmu_remove(a6xx_gpu); + + adreno_gpu_cleanup(adreno_gpu); + kfree(a6xx_gpu); +} + +static unsigned long a6xx_gpu_busy(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + u64 busy_cycles, busy_time; + + + /* Only read the gpu busy if the hardware is already active */ + if (pm_runtime_get_if_in_use(a6xx_gpu->gmu.dev) == 0) + return 0; + + busy_cycles = gmu_read64(&a6xx_gpu->gmu, + REG_A6XX_GMU_CX_GMU_POWER_COUNTER_XOCLK_0_L, + REG_A6XX_GMU_CX_GMU_POWER_COUNTER_XOCLK_0_H); + + busy_time = (busy_cycles - gpu->devfreq.busy_cycles) * 10; + do_div(busy_time, 192); + + gpu->devfreq.busy_cycles = busy_cycles; + + pm_runtime_put(a6xx_gpu->gmu.dev); + + if (WARN_ON(busy_time > ~0LU)) + return ~0LU; + + return (unsigned long)busy_time; +} + +static struct msm_gem_address_space * +a6xx_create_private_address_space(struct msm_gpu *gpu) +{ + struct msm_mmu *mmu; + + mmu = msm_iommu_pagetable_create(gpu->aspace->mmu); + + if (IS_ERR(mmu)) + return ERR_CAST(mmu); + + return msm_gem_address_space_create(mmu, + "gpu", 0x100000000ULL, SZ_4G); +} + +static uint32_t a6xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu); + + if (adreno_gpu->base.hw_apriv || a6xx_gpu->has_whereami) + return a6xx_gpu->shadow[ring->id]; + + return ring->memptrs->rptr = gpu_read(gpu, REG_A6XX_CP_RB_RPTR); +} + +static const struct adreno_gpu_funcs funcs = { + .base = { + .get_param = adreno_get_param, + .hw_init = a6xx_hw_init, + .pm_suspend = a6xx_pm_suspend, + .pm_resume = a6xx_pm_resume, + .recover = a6xx_recover, + .submit = a6xx_submit, + .active_ring = a6xx_active_ring, + .irq = a6xx_irq, + .destroy = a6xx_destroy, +#if defined(CONFIG_DRM_MSM_GPU_STATE) + .show = a6xx_show, +#endif + .gpu_busy = a6xx_gpu_busy, + .gpu_get_freq = a6xx_gmu_get_freq, + .gpu_set_freq = a6xx_gmu_set_freq, +#if defined(CONFIG_DRM_MSM_GPU_STATE) + .gpu_state_get = a6xx_gpu_state_get, + .gpu_state_put = a6xx_gpu_state_put, +#endif + .create_address_space = adreno_iommu_create_address_space, + .create_private_address_space = a6xx_create_private_address_space, + .get_rptr = a6xx_get_rptr, + }, + .get_timestamp = a6xx_get_timestamp, +}; + +struct msm_gpu *a6xx_gpu_init(struct drm_device *dev) +{ + struct msm_drm_private *priv = dev->dev_private; + struct platform_device *pdev = priv->gpu_pdev; + struct adreno_platform_config *config = pdev->dev.platform_data; + const struct adreno_info *info; + struct device_node *node; + struct a6xx_gpu *a6xx_gpu; + struct adreno_gpu *adreno_gpu; + struct msm_gpu *gpu; + int ret; + + a6xx_gpu = kzalloc(sizeof(*a6xx_gpu), GFP_KERNEL); + if (!a6xx_gpu) + return ERR_PTR(-ENOMEM); + + adreno_gpu = &a6xx_gpu->base; + gpu = &adreno_gpu->base; + + adreno_gpu->registers = NULL; + + /* + * We need to know the platform type before calling into adreno_gpu_init + * so that the hw_apriv flag can be correctly set. Snoop into the info + * and grab the revision number + */ + info = adreno_info(config->rev); + + if (info && info->revn == 650) + adreno_gpu->base.hw_apriv = true; + + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1); + if (ret) { + a6xx_destroy(&(a6xx_gpu->base.base)); + return ERR_PTR(ret); + } + + /* Check if there is a GMU phandle and set it up */ + node = of_parse_phandle(pdev->dev.of_node, "qcom,gmu", 0); + + /* FIXME: How do we gracefully handle this? */ + BUG_ON(!node); + + ret = a6xx_gmu_init(a6xx_gpu, node); + of_node_put(node); + 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); + + return gpu; +} |