diff options
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/a5xx_gpu.c')
| -rw-r--r-- | drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 1786 |
1 files changed, 1786 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c new file mode 100644 index 000000000..895a0e9db --- /dev/null +++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c @@ -0,0 +1,1786 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (c) 2016-2017 The Linux Foundation. All rights reserved. + */ + +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/cpumask.h> +#include <linux/qcom_scm.h> +#include <linux/pm_opp.h> +#include <linux/nvmem-consumer.h> +#include <linux/slab.h> +#include "msm_gem.h" +#include "msm_mmu.h" +#include "a5xx_gpu.h" + +extern bool hang_debug; +static void a5xx_dump(struct msm_gpu *gpu); + +#define GPU_PAS_ID 13 + +static void update_shadow_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + + if (a5xx_gpu->has_whereami) { + OUT_PKT7(ring, CP_WHERE_AM_I, 2); + OUT_RING(ring, lower_32_bits(shadowptr(a5xx_gpu, ring))); + OUT_RING(ring, upper_32_bits(shadowptr(a5xx_gpu, ring))); + } +} + +void a5xx_flush(struct msm_gpu *gpu, struct msm_ringbuffer *ring, + bool sync) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + uint32_t wptr; + unsigned long flags; + + /* + * Most flush operations need to issue a WHERE_AM_I opcode to sync up + * the rptr shadow + */ + if (sync) + update_shadow_rptr(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(); + + /* Update HW if this is the current ring and we are not in preempt */ + if (a5xx_gpu->cur_ring == ring && !a5xx_in_preempt(a5xx_gpu)) + gpu_write(gpu, REG_A5XX_CP_RB_WPTR, wptr); +} + +static void a5xx_submit_in_rb(struct msm_gpu *gpu, struct msm_gem_submit *submit) +{ + struct msm_ringbuffer *ring = submit->ring; + struct msm_gem_object *obj; + uint32_t *ptr, dwords; + unsigned int i; + + 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 (gpu->cur_ctx_seqno == submit->queue->ctx->seqno) + break; + fallthrough; + case MSM_SUBMIT_CMD_BUF: + /* copy commands into RB: */ + obj = submit->bos[submit->cmd[i].idx].obj; + dwords = submit->cmd[i].size; + + ptr = msm_gem_get_vaddr(&obj->base); + + /* _get_vaddr() shouldn't fail at this point, + * since we've already mapped it once in + * submit_reloc() + */ + if (WARN_ON(IS_ERR_OR_NULL(ptr))) + return; + + for (i = 0; i < dwords; i++) { + /* normally the OUT_PKTn() would wait + * for space for the packet. But since + * we just OUT_RING() the whole thing, + * need to call adreno_wait_ring() + * ourself: + */ + adreno_wait_ring(ring, 1); + OUT_RING(ring, ptr[i]); + } + + msm_gem_put_vaddr(&obj->base); + + break; + } + } + + a5xx_flush(gpu, ring, true); + a5xx_preempt_trigger(gpu); + + /* we might not necessarily have a cmd from userspace to + * trigger an event to know that submit has completed, so + * do this manually: + */ + a5xx_idle(gpu, ring); + ring->memptrs->fence = submit->seqno; + msm_gpu_retire(gpu); +} + +static void a5xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + struct msm_ringbuffer *ring = submit->ring; + unsigned int i, ibs = 0; + + if (IS_ENABLED(CONFIG_DRM_MSM_GPU_SUDO) && submit->in_rb) { + gpu->cur_ctx_seqno = 0; + a5xx_submit_in_rb(gpu, submit); + return; + } + + OUT_PKT7(ring, CP_PREEMPT_ENABLE_GLOBAL, 1); + OUT_RING(ring, 0x02); + + /* Turn off protected mode to write to special registers */ + OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1); + OUT_RING(ring, 0); + + /* Set the save preemption record for the ring/command */ + OUT_PKT4(ring, REG_A5XX_CP_CONTEXT_SWITCH_SAVE_ADDR_LO, 2); + OUT_RING(ring, lower_32_bits(a5xx_gpu->preempt_iova[submit->ring->id])); + OUT_RING(ring, upper_32_bits(a5xx_gpu->preempt_iova[submit->ring->id])); + + /* Turn back on protected mode */ + OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1); + OUT_RING(ring, 1); + + /* Enable local preemption for finegrain preemption */ + OUT_PKT7(ring, CP_PREEMPT_ENABLE_LOCAL, 1); + OUT_RING(ring, 0x1); + + /* Allow CP_CONTEXT_SWITCH_YIELD packets in the IB2 */ + OUT_PKT7(ring, CP_YIELD_ENABLE, 1); + OUT_RING(ring, 0x02); + + /* 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 (gpu->cur_ctx_seqno == submit->queue->ctx->seqno) + 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); + ibs++; + break; + } + + /* + * Periodically update shadow-wptr if needed, so that we + * can see partial progress of submits with large # of + * cmds.. otherwise we could needlessly stall waiting for + * ringbuffer state, simply due to looking at a shadow + * rptr value that has not been updated + */ + if ((ibs % 32) == 0) + update_shadow_rptr(gpu, ring); + } + + /* + * Write the render mode to NULL (0) to indicate to the CP that the IBs + * are done rendering - otherwise a lucky preemption would start + * replaying from the last checkpoint + */ + OUT_PKT7(ring, CP_SET_RENDER_MODE, 5); + OUT_RING(ring, 0); + OUT_RING(ring, 0); + OUT_RING(ring, 0); + OUT_RING(ring, 0); + OUT_RING(ring, 0); + + /* Turn off IB level preemptions */ + OUT_PKT7(ring, CP_YIELD_ENABLE, 1); + OUT_RING(ring, 0x01); + + /* Write the fence to the scratch register */ + OUT_PKT4(ring, REG_A5XX_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); + + /* Yield the floor on command completion */ + OUT_PKT7(ring, CP_CONTEXT_SWITCH_YIELD, 4); + /* + * If dword[2:1] are non zero, they specify an address for the CP to + * write the value of dword[3] to on preemption complete. Write 0 to + * skip the write + */ + OUT_RING(ring, 0x00); + OUT_RING(ring, 0x00); + /* Data value - not used if the address above is 0 */ + OUT_RING(ring, 0x01); + /* Set bit 0 to trigger an interrupt on preempt complete */ + OUT_RING(ring, 0x01); + + /* A WHERE_AM_I packet is not needed after a YIELD */ + a5xx_flush(gpu, ring, false); + + /* Check to see if we need to start preemption */ + a5xx_preempt_trigger(gpu); +} + +static const struct adreno_five_hwcg_regs { + u32 offset; + u32 value; +} a5xx_hwcg[] = { + {REG_A5XX_RBBM_CLOCK_CNTL_SP0, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_SP1, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_SP2, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_SP3, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP1, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP2, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP3, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_HYST_SP0, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_HYST_SP1, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_HYST_SP2, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_HYST_SP3, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP1, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP2, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP3, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP2, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP3, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP2, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP3, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP0, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP1, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP2, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP3, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST_TP1, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST_TP2, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST_TP3, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP1, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP2, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP3, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP0, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP1, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP2, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP3, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP1, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP2, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP3, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP1, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP2, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP3, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP0, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP1, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP2, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP3, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL4_UCHE, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_HYST_UCHE, 0x00444444}, + {REG_A5XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB2, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB3, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB0, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB1, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB2, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB3, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU0, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU1, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU2, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU3, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_RAC, 0x05522222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RAC, 0x00505555}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU0, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU1, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU2, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU3, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RAC, 0x07444044}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_0, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_1, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_2, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_3, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RAC, 0x00010011}, + {REG_A5XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A5XX_RBBM_CLOCK_MODE_GPC, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A5XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A5XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A5XX_RBBM_CLOCK_DELAY_VFD, 0x00002222} +}, a50x_hwcg[] = { + {REG_A5XX_RBBM_CLOCK_CNTL_SP0, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_HYST_SP0, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP0, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP0, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP0, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_CNTL2_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL4_UCHE, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_HYST_UCHE, 0x00FFFFF4}, + {REG_A5XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB0, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU0, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_RAC, 0x05522222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RAC, 0x00505555}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU0, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RAC, 0x07444044}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_0, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RAC, 0x00010011}, + {REG_A5XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A5XX_RBBM_CLOCK_MODE_GPC, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A5XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A5XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A5XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}, +}, a512_hwcg[] = { + {REG_A5XX_RBBM_CLOCK_CNTL_SP0, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_SP1, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP0, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_CNTL2_SP1, 0x02222220}, + {REG_A5XX_RBBM_CLOCK_HYST_SP0, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_HYST_SP1, 0x0000F3CF}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP0, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_DELAY_SP1, 0x00000080}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_TP1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_TP1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP0, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_TP1, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST_TP1, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP0, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST2_TP1, 0x77777777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP0, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_HYST3_TP1, 0x00007777}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY_TP1, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP0, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY2_TP1, 0x11111111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP0, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_DELAY3_TP1, 0x00001111}, + {REG_A5XX_RBBM_CLOCK_CNTL_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL3_UCHE, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL4_UCHE, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_HYST_UCHE, 0x00444444}, + {REG_A5XX_RBBM_CLOCK_DELAY_UCHE, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB0, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_RB1, 0x22222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB0, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RB1, 0x00222222}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU0, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_CCU1, 0x00022220}, + {REG_A5XX_RBBM_CLOCK_CNTL_RAC, 0x05522222}, + {REG_A5XX_RBBM_CLOCK_CNTL2_RAC, 0x00505555}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU0, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RB_CCU1, 0x04040404}, + {REG_A5XX_RBBM_CLOCK_HYST_RAC, 0x07444044}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_0, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RB_CCU_L1_1, 0x00000002}, + {REG_A5XX_RBBM_CLOCK_DELAY_RAC, 0x00010011}, + {REG_A5XX_RBBM_CLOCK_CNTL_TSE_RAS_RBBM, 0x04222222}, + {REG_A5XX_RBBM_CLOCK_MODE_GPC, 0x02222222}, + {REG_A5XX_RBBM_CLOCK_MODE_VFD, 0x00002222}, + {REG_A5XX_RBBM_CLOCK_HYST_TSE_RAS_RBBM, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_HYST_GPC, 0x04104004}, + {REG_A5XX_RBBM_CLOCK_HYST_VFD, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_HLSQ, 0x00000000}, + {REG_A5XX_RBBM_CLOCK_DELAY_TSE_RAS_RBBM, 0x00004000}, + {REG_A5XX_RBBM_CLOCK_DELAY_GPC, 0x00000200}, + {REG_A5XX_RBBM_CLOCK_DELAY_VFD, 0x00002222}, +}; + +void a5xx_set_hwcg(struct msm_gpu *gpu, bool state) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + const struct adreno_five_hwcg_regs *regs; + unsigned int i, sz; + + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu)) { + regs = a50x_hwcg; + sz = ARRAY_SIZE(a50x_hwcg); + } else if (adreno_is_a509(adreno_gpu) || adreno_is_a512(adreno_gpu)) { + regs = a512_hwcg; + sz = ARRAY_SIZE(a512_hwcg); + } else { + regs = a5xx_hwcg; + sz = ARRAY_SIZE(a5xx_hwcg); + } + + for (i = 0; i < sz; i++) + gpu_write(gpu, regs[i].offset, + state ? regs[i].value : 0); + + if (adreno_is_a540(adreno_gpu)) { + gpu_write(gpu, REG_A5XX_RBBM_CLOCK_DELAY_GPMU, state ? 0x00000770 : 0); + gpu_write(gpu, REG_A5XX_RBBM_CLOCK_HYST_GPMU, state ? 0x00000004 : 0); + } + + gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, state ? 0xAAA8AA00 : 0); + gpu_write(gpu, REG_A5XX_RBBM_ISDB_CNT, state ? 0x182 : 0x180); +} + +static int a5xx_me_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_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); + + /* Specify workarounds for various microcode issues */ + if (adreno_is_a506(adreno_gpu) || adreno_is_a530(adreno_gpu)) { + /* Workaround for token end syncs + * Force a WFI after every direct-render 3D mode draw and every + * 2D mode 3 draw + */ + OUT_RING(ring, 0x0000000B); + } else if (adreno_is_a510(adreno_gpu)) { + /* Workaround for token and syncs */ + OUT_RING(ring, 0x00000001); + } else { + /* No workarounds enabled */ + OUT_RING(ring, 0x00000000); + } + + OUT_RING(ring, 0x00000000); + OUT_RING(ring, 0x00000000); + + a5xx_flush(gpu, ring, true); + return a5xx_idle(gpu, ring) ? 0 : -EINVAL; +} + +static int a5xx_preempt_start(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + struct msm_ringbuffer *ring = gpu->rb[0]; + + if (gpu->nr_rings == 1) + return 0; + + /* Turn off protected mode to write to special registers */ + OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1); + OUT_RING(ring, 0); + + /* Set the save preemption record for the ring/command */ + OUT_PKT4(ring, REG_A5XX_CP_CONTEXT_SWITCH_SAVE_ADDR_LO, 2); + OUT_RING(ring, lower_32_bits(a5xx_gpu->preempt_iova[ring->id])); + OUT_RING(ring, upper_32_bits(a5xx_gpu->preempt_iova[ring->id])); + + /* Turn back on protected mode */ + OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1); + OUT_RING(ring, 1); + + OUT_PKT7(ring, CP_PREEMPT_ENABLE_GLOBAL, 1); + OUT_RING(ring, 0x00); + + OUT_PKT7(ring, CP_PREEMPT_ENABLE_LOCAL, 1); + OUT_RING(ring, 0x01); + + OUT_PKT7(ring, CP_YIELD_ENABLE, 1); + OUT_RING(ring, 0x01); + + /* Yield the floor on command completion */ + OUT_PKT7(ring, CP_CONTEXT_SWITCH_YIELD, 4); + OUT_RING(ring, 0x00); + OUT_RING(ring, 0x00); + OUT_RING(ring, 0x01); + OUT_RING(ring, 0x01); + + /* The WHERE_AMI_I packet is not needed after a YIELD is issued */ + a5xx_flush(gpu, ring, false); + + return a5xx_idle(gpu, ring) ? 0 : -EINVAL; +} + +static void a5xx_ucode_check_version(struct a5xx_gpu *a5xx_gpu, + struct drm_gem_object *obj) +{ + u32 *buf = msm_gem_get_vaddr(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] + */ + if (((buf[0] & 0xf) == 0xa) && (buf[2] & 0xf) >= 1) + a5xx_gpu->has_whereami = true; + + msm_gem_put_vaddr(obj); +} + +static int a5xx_ucode_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + int ret; + + if (!a5xx_gpu->pm4_bo) { + a5xx_gpu->pm4_bo = adreno_fw_create_bo(gpu, + adreno_gpu->fw[ADRENO_FW_PM4], &a5xx_gpu->pm4_iova); + + + if (IS_ERR(a5xx_gpu->pm4_bo)) { + ret = PTR_ERR(a5xx_gpu->pm4_bo); + a5xx_gpu->pm4_bo = NULL; + DRM_DEV_ERROR(gpu->dev->dev, "could not allocate PM4: %d\n", + ret); + return ret; + } + + msm_gem_object_set_name(a5xx_gpu->pm4_bo, "pm4fw"); + } + + if (!a5xx_gpu->pfp_bo) { + a5xx_gpu->pfp_bo = adreno_fw_create_bo(gpu, + adreno_gpu->fw[ADRENO_FW_PFP], &a5xx_gpu->pfp_iova); + + if (IS_ERR(a5xx_gpu->pfp_bo)) { + ret = PTR_ERR(a5xx_gpu->pfp_bo); + a5xx_gpu->pfp_bo = NULL; + DRM_DEV_ERROR(gpu->dev->dev, "could not allocate PFP: %d\n", + ret); + return ret; + } + + msm_gem_object_set_name(a5xx_gpu->pfp_bo, "pfpfw"); + a5xx_ucode_check_version(a5xx_gpu, a5xx_gpu->pfp_bo); + } + + gpu_write64(gpu, REG_A5XX_CP_ME_INSTR_BASE_LO, a5xx_gpu->pm4_iova); + + gpu_write64(gpu, REG_A5XX_CP_PFP_INSTR_BASE_LO, a5xx_gpu->pfp_iova); + + return 0; +} + +#define SCM_GPU_ZAP_SHADER_RESUME 0 + +static int a5xx_zap_shader_resume(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + int ret; + + /* + * Adreno 506 have CPZ Retention feature and doesn't require + * to resume zap shader + */ + if (adreno_is_a506(adreno_gpu)) + return 0; + + ret = qcom_scm_set_remote_state(SCM_GPU_ZAP_SHADER_RESUME, GPU_PAS_ID); + if (ret) + DRM_ERROR("%s: zap-shader resume failed: %d\n", + gpu->name, ret); + + return ret; +} + +static int a5xx_zap_shader_init(struct msm_gpu *gpu) +{ + static bool loaded; + int ret; + + /* + * If the zap shader is already loaded into memory we just need to kick + * the remote processor to reinitialize it + */ + if (loaded) + return a5xx_zap_shader_resume(gpu); + + ret = adreno_zap_shader_load(gpu, GPU_PAS_ID); + + loaded = !ret; + return ret; +} + +#define A5XX_INT_MASK (A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR | \ + A5XX_RBBM_INT_0_MASK_RBBM_TRANSFER_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ME_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_PFP_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ETS_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNC_OVERFLOW | \ + A5XX_RBBM_INT_0_MASK_CP_HW_ERROR | \ + A5XX_RBBM_INT_0_MASK_MISC_HANG_DETECT | \ + A5XX_RBBM_INT_0_MASK_CP_SW | \ + A5XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS | \ + A5XX_RBBM_INT_0_MASK_UCHE_OOB_ACCESS | \ + A5XX_RBBM_INT_0_MASK_GPMU_VOLTAGE_DROOP) + +static int a5xx_hw_init(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + u32 regbit; + int ret; + + gpu_write(gpu, REG_A5XX_VBIF_ROUND_ROBIN_QOS_ARB, 0x00000003); + + if (adreno_is_a509(adreno_gpu) || adreno_is_a512(adreno_gpu) || + adreno_is_a540(adreno_gpu)) + gpu_write(gpu, REG_A5XX_VBIF_GATE_OFF_WRREQ_EN, 0x00000009); + + /* Make all blocks contribute to the GPU BUSY perf counter */ + gpu_write(gpu, REG_A5XX_RBBM_PERFCTR_GPU_BUSY_MASKED, 0xFFFFFFFF); + + /* Enable RBBM error reporting bits */ + gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL0, 0x00000001); + + if (adreno_gpu->info->quirks & ADRENO_QUIRK_FAULT_DETECT_MASK) { + /* + * Mask out the activity signals from RB1-3 to avoid false + * positives + */ + + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL11, + 0xF0000000); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL12, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL13, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL14, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL15, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL16, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL17, + 0xFFFFFFFF); + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_MASK_CNTL18, + 0xFFFFFFFF); + } + + /* Enable fault detection */ + gpu_write(gpu, REG_A5XX_RBBM_INTERFACE_HANG_INT_CNTL, + (1 << 30) | 0xFFFF); + + /* Turn on performance counters */ + gpu_write(gpu, REG_A5XX_RBBM_PERFCTR_CNTL, 0x01); + + /* Select CP0 to always count cycles */ + gpu_write(gpu, REG_A5XX_CP_PERFCTR_CP_SEL_0, PERF_CP_ALWAYS_COUNT); + + /* Select RBBM0 to countable 6 to get the busy status for devfreq */ + gpu_write(gpu, REG_A5XX_RBBM_PERFCTR_RBBM_SEL_0, 6); + + /* Increase VFD cache access so LRZ and other data gets evicted less */ + gpu_write(gpu, REG_A5XX_UCHE_CACHE_WAYS, 0x02); + + /* Disable L2 bypass in the UCHE */ + gpu_write(gpu, REG_A5XX_UCHE_TRAP_BASE_LO, 0xFFFF0000); + gpu_write(gpu, REG_A5XX_UCHE_TRAP_BASE_HI, 0x0001FFFF); + gpu_write(gpu, REG_A5XX_UCHE_WRITE_THRU_BASE_LO, 0xFFFF0000); + gpu_write(gpu, REG_A5XX_UCHE_WRITE_THRU_BASE_HI, 0x0001FFFF); + + /* Set the GMEM VA range (0 to gpu->gmem) */ + gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MIN_LO, 0x00100000); + gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MIN_HI, 0x00000000); + gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_LO, + 0x00100000 + adreno_gpu->gmem - 1); + gpu_write(gpu, REG_A5XX_UCHE_GMEM_RANGE_MAX_HI, 0x00000000); + + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu) || + adreno_is_a510(adreno_gpu)) { + gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x20); + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu)) + gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400); + else + gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x20); + gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x40000030); + gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x20100D0A); + } else { + gpu_write(gpu, REG_A5XX_CP_MEQ_THRESHOLDS, 0x40); + if (adreno_is_a530(adreno_gpu)) + gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x40); + else + gpu_write(gpu, REG_A5XX_CP_MERCIU_SIZE, 0x400); + gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_2, 0x80000060); + gpu_write(gpu, REG_A5XX_CP_ROQ_THRESHOLDS_1, 0x40201B16); + } + + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu)) + gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL, + (0x100 << 11 | 0x100 << 22)); + else if (adreno_is_a509(adreno_gpu) || adreno_is_a510(adreno_gpu) || + adreno_is_a512(adreno_gpu)) + gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL, + (0x200 << 11 | 0x200 << 22)); + else + gpu_write(gpu, REG_A5XX_PC_DBG_ECO_CNTL, + (0x400 << 11 | 0x300 << 22)); + + if (adreno_gpu->info->quirks & ADRENO_QUIRK_TWO_PASS_USE_WFI) + gpu_rmw(gpu, REG_A5XX_PC_DBG_ECO_CNTL, 0, (1 << 8)); + + /* + * Disable the RB sampler datapath DP2 clock gating optimization + * for 1-SP GPUs, as it is enabled by default. + */ + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu) || + adreno_is_a509(adreno_gpu) || adreno_is_a512(adreno_gpu)) + gpu_rmw(gpu, REG_A5XX_RB_DBG_ECO_CNTL, 0, (1 << 9)); + + /* Disable UCHE global filter as SP can invalidate/flush independently */ + gpu_write(gpu, REG_A5XX_UCHE_MODE_CNTL, BIT(29)); + + /* Enable USE_RETENTION_FLOPS */ + gpu_write(gpu, REG_A5XX_CP_CHICKEN_DBG, 0x02000000); + + /* Enable ME/PFP split notification */ + gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL1, 0xA6FFFFFF); + + /* + * In A5x, CCU can send context_done event of a particular context to + * UCHE which ultimately reaches CP even when there is valid + * transaction of that context inside CCU. This can let CP to program + * config registers, which will make the "valid transaction" inside + * CCU to be interpreted differently. This can cause gpu fault. This + * bug is fixed in latest A510 revision. To enable this bug fix - + * bit[11] of RB_DBG_ECO_CNTL need to be set to 0, default is 1 + * (disable). For older A510 version this bit is unused. + */ + if (adreno_is_a510(adreno_gpu)) + gpu_rmw(gpu, REG_A5XX_RB_DBG_ECO_CNTL, (1 << 11), 0); + + /* Enable HWCG */ + a5xx_set_hwcg(gpu, true); + + gpu_write(gpu, REG_A5XX_RBBM_AHB_CNTL2, 0x0000003F); + + /* Set the highest bank bit */ + if (adreno_is_a540(adreno_gpu) || adreno_is_a530(adreno_gpu)) + regbit = 2; + else + regbit = 1; + + gpu_write(gpu, REG_A5XX_TPL1_MODE_CNTL, regbit << 7); + gpu_write(gpu, REG_A5XX_RB_MODE_CNTL, regbit << 1); + + if (adreno_is_a509(adreno_gpu) || adreno_is_a512(adreno_gpu) || + adreno_is_a540(adreno_gpu)) + gpu_write(gpu, REG_A5XX_UCHE_DBG_ECO_CNTL_2, regbit); + + /* Disable All flat shading optimization (ALLFLATOPTDIS) */ + gpu_rmw(gpu, REG_A5XX_VPC_DBG_ECO_CNTL, 0, (1 << 10)); + + /* Protect registers from the CP */ + gpu_write(gpu, REG_A5XX_CP_PROTECT_CNTL, 0x00000007); + + /* RBBM */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(0), ADRENO_PROTECT_RW(0x04, 4)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(1), ADRENO_PROTECT_RW(0x08, 8)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(2), ADRENO_PROTECT_RW(0x10, 16)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(3), ADRENO_PROTECT_RW(0x20, 32)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(4), ADRENO_PROTECT_RW(0x40, 64)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(5), ADRENO_PROTECT_RW(0x80, 64)); + + /* Content protect */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(6), + ADRENO_PROTECT_RW(REG_A5XX_RBBM_SECVID_TSB_TRUSTED_BASE_LO, + 16)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(7), + ADRENO_PROTECT_RW(REG_A5XX_RBBM_SECVID_TRUST_CNTL, 2)); + + /* CP */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(8), ADRENO_PROTECT_RW(0x800, 64)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(9), ADRENO_PROTECT_RW(0x840, 8)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(10), ADRENO_PROTECT_RW(0x880, 32)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(11), ADRENO_PROTECT_RW(0xAA0, 1)); + + /* RB */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(12), ADRENO_PROTECT_RW(0xCC0, 1)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(13), ADRENO_PROTECT_RW(0xCF0, 2)); + + /* VPC */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(14), ADRENO_PROTECT_RW(0xE68, 8)); + gpu_write(gpu, REG_A5XX_CP_PROTECT(15), ADRENO_PROTECT_RW(0xE70, 16)); + + /* UCHE */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(16), ADRENO_PROTECT_RW(0xE80, 16)); + + /* SMMU */ + gpu_write(gpu, REG_A5XX_CP_PROTECT(17), + ADRENO_PROTECT_RW(0x10000, 0x8000)); + + gpu_write(gpu, REG_A5XX_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_A5XX_RBBM_SECVID_TSB_TRUSTED_BASE_LO, 0x00000000); + gpu_write(gpu, REG_A5XX_RBBM_SECVID_TSB_TRUSTED_SIZE, 0x00000000); + + /* Put the GPU into 64 bit by default */ + gpu_write(gpu, REG_A5XX_CP_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_VSC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_GRAS_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_RB_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_PC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_HLSQ_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_VFD_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_VPC_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_UCHE_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_SP_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_TPL1_ADDR_MODE_CNTL, 0x1); + gpu_write(gpu, REG_A5XX_RBBM_SECVID_TSB_ADDR_MODE_CNTL, 0x1); + + /* + * VPC corner case with local memory load kill leads to corrupt + * internal state. Normal Disable does not work for all a5x chips. + * So do the following setting to disable it. + */ + if (adreno_gpu->info->quirks & ADRENO_QUIRK_LMLOADKILL_DISABLE) { + gpu_rmw(gpu, REG_A5XX_VPC_DBG_ECO_CNTL, 0, BIT(23)); + gpu_rmw(gpu, REG_A5XX_HLSQ_DBG_ECO_CNTL, BIT(18), 0); + } + + ret = adreno_hw_init(gpu); + if (ret) + return ret; + + if (adreno_is_a530(adreno_gpu) || adreno_is_a540(adreno_gpu)) + a5xx_gpmu_ucode_init(gpu); + + ret = a5xx_ucode_init(gpu); + if (ret) + return ret; + + /* Set the ringbuffer address */ + gpu_write64(gpu, REG_A5XX_CP_RB_BASE, gpu->rb[0]->iova); + + /* + * If the microcode supports the WHERE_AM_I opcode then we can use that + * in lieu of the RPTR shadow and enable preemption. Otherwise, we + * can't safely use the RPTR shadow or preemption. In either case, the + * RPTR shadow should be disabled in hardware. + */ + gpu_write(gpu, REG_A5XX_CP_RB_CNTL, + MSM_GPU_RB_CNTL_DEFAULT | AXXX_CP_RB_CNTL_NO_UPDATE); + + /* Create a privileged buffer for the RPTR shadow */ + if (a5xx_gpu->has_whereami) { + if (!a5xx_gpu->shadow_bo) { + a5xx_gpu->shadow = msm_gem_kernel_new(gpu->dev, + sizeof(u32) * gpu->nr_rings, + MSM_BO_WC | MSM_BO_MAP_PRIV, + gpu->aspace, &a5xx_gpu->shadow_bo, + &a5xx_gpu->shadow_iova); + + if (IS_ERR(a5xx_gpu->shadow)) + return PTR_ERR(a5xx_gpu->shadow); + + msm_gem_object_set_name(a5xx_gpu->shadow_bo, "shadow"); + } + + gpu_write64(gpu, REG_A5XX_CP_RB_RPTR_ADDR, + shadowptr(a5xx_gpu, gpu->rb[0])); + } else if (gpu->nr_rings > 1) { + /* Disable preemption if WHERE_AM_I isn't available */ + a5xx_preempt_fini(gpu); + gpu->nr_rings = 1; + } + + a5xx_preempt_hw_init(gpu); + + /* Disable the interrupts through the initial bringup stage */ + gpu_write(gpu, REG_A5XX_RBBM_INT_0_MASK, A5XX_INT_MASK); + + /* Clear ME_HALT to start the micro engine */ + gpu_write(gpu, REG_A5XX_CP_PFP_ME_CNTL, 0); + ret = a5xx_me_init(gpu); + if (ret) + return ret; + + ret = a5xx_power_init(gpu); + if (ret) + return ret; + + /* + * Send a pipeline event stat to get misbehaving counters to start + * ticking correctly + */ + if (adreno_is_a530(adreno_gpu)) { + OUT_PKT7(gpu->rb[0], CP_EVENT_WRITE, 1); + OUT_RING(gpu->rb[0], CP_EVENT_WRITE_0_EVENT(STAT_EVENT)); + + a5xx_flush(gpu, gpu->rb[0], true); + if (!a5xx_idle(gpu, gpu->rb[0])) + return -EINVAL; + } + + /* + * If the chip that we are using does support loading one, then + * 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 = a5xx_zap_shader_init(gpu); + if (!ret) { + OUT_PKT7(gpu->rb[0], CP_SET_SECURE_MODE, 1); + OUT_RING(gpu->rb[0], 0x00000000); + + a5xx_flush(gpu, gpu->rb[0], true); + if (!a5xx_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_A5XX_RBBM_SECVID_TRUST_CNTL, 0x0); + } else { + return ret; + } + + /* Last step - yield the ringbuffer */ + a5xx_preempt_start(gpu); + + return 0; +} + +static void a5xx_recover(struct msm_gpu *gpu) +{ + int i; + + adreno_dump_info(gpu); + + for (i = 0; i < 8; i++) { + printk("CP_SCRATCH_REG%d: %u\n", i, + gpu_read(gpu, REG_A5XX_CP_SCRATCH_REG(i))); + } + + if (hang_debug) + a5xx_dump(gpu); + + gpu_write(gpu, REG_A5XX_RBBM_SW_RESET_CMD, 1); + gpu_read(gpu, REG_A5XX_RBBM_SW_RESET_CMD); + gpu_write(gpu, REG_A5XX_RBBM_SW_RESET_CMD, 0); + adreno_recover(gpu); +} + +static void a5xx_destroy(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + + DBG("%s", gpu->name); + + a5xx_preempt_fini(gpu); + + if (a5xx_gpu->pm4_bo) { + msm_gem_unpin_iova(a5xx_gpu->pm4_bo, gpu->aspace); + drm_gem_object_put(a5xx_gpu->pm4_bo); + } + + if (a5xx_gpu->pfp_bo) { + msm_gem_unpin_iova(a5xx_gpu->pfp_bo, gpu->aspace); + drm_gem_object_put(a5xx_gpu->pfp_bo); + } + + if (a5xx_gpu->gpmu_bo) { + msm_gem_unpin_iova(a5xx_gpu->gpmu_bo, gpu->aspace); + drm_gem_object_put(a5xx_gpu->gpmu_bo); + } + + if (a5xx_gpu->shadow_bo) { + msm_gem_unpin_iova(a5xx_gpu->shadow_bo, gpu->aspace); + drm_gem_object_put(a5xx_gpu->shadow_bo); + } + + adreno_gpu_cleanup(adreno_gpu); + kfree(a5xx_gpu); +} + +static inline bool _a5xx_check_idle(struct msm_gpu *gpu) +{ + if (gpu_read(gpu, REG_A5XX_RBBM_STATUS) & ~A5XX_RBBM_STATUS_HI_BUSY) + return false; + + /* + * Nearly every abnormality ends up pausing the GPU and triggering a + * fault so we can safely just watch for this one interrupt to fire + */ + return !(gpu_read(gpu, REG_A5XX_RBBM_INT_0_STATUS) & + A5XX_RBBM_INT_0_MASK_MISC_HANG_DETECT); +} + +bool a5xx_idle(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + + if (ring != a5xx_gpu->cur_ring) { + WARN(1, "Tried to idle a non-current ringbuffer\n"); + return false; + } + + /* wait for CP to drain ringbuffer: */ + if (!adreno_idle(gpu, ring)) + return false; + + if (spin_until(_a5xx_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_A5XX_RBBM_STATUS), + gpu_read(gpu, REG_A5XX_RBBM_INT_0_STATUS), + gpu_read(gpu, REG_A5XX_CP_RB_RPTR), + gpu_read(gpu, REG_A5XX_CP_RB_WPTR)); + return false; + } + + return true; +} + +static int a5xx_fault_handler(void *arg, unsigned long iova, int flags, void *data) +{ + 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_A5XX_CP_SCRATCH_REG(4)), + gpu_read(gpu, REG_A5XX_CP_SCRATCH_REG(5)), + gpu_read(gpu, REG_A5XX_CP_SCRATCH_REG(6)), + gpu_read(gpu, REG_A5XX_CP_SCRATCH_REG(7))); + + return 0; +} + +static void a5xx_cp_err_irq(struct msm_gpu *gpu) +{ + u32 status = gpu_read(gpu, REG_A5XX_CP_INTERRUPT_STATUS); + + if (status & A5XX_CP_INT_CP_OPCODE_ERROR) { + u32 val; + + gpu_write(gpu, REG_A5XX_CP_PFP_STAT_ADDR, 0); + + /* + * REG_A5XX_CP_PFP_STAT_DATA is indexed, and we want index 1 so + * read it twice + */ + + gpu_read(gpu, REG_A5XX_CP_PFP_STAT_DATA); + val = gpu_read(gpu, REG_A5XX_CP_PFP_STAT_DATA); + + dev_err_ratelimited(gpu->dev->dev, "CP | opcode error | possible opcode=0x%8.8X\n", + val); + } + + if (status & A5XX_CP_INT_CP_HW_FAULT_ERROR) + dev_err_ratelimited(gpu->dev->dev, "CP | HW fault | status=0x%8.8X\n", + gpu_read(gpu, REG_A5XX_CP_HW_FAULT)); + + if (status & A5XX_CP_INT_CP_DMA_ERROR) + dev_err_ratelimited(gpu->dev->dev, "CP | DMA error\n"); + + if (status & A5XX_CP_INT_CP_REGISTER_PROTECTION_ERROR) { + u32 val = gpu_read(gpu, REG_A5XX_CP_PROTECT_STATUS); + + dev_err_ratelimited(gpu->dev->dev, + "CP | protected mode error | %s | addr=0x%8.8X | status=0x%8.8X\n", + val & (1 << 24) ? "WRITE" : "READ", + (val & 0xFFFFF) >> 2, val); + } + + if (status & A5XX_CP_INT_CP_AHB_ERROR) { + u32 status = gpu_read(gpu, REG_A5XX_CP_AHB_FAULT); + const char *access[16] = { "reserved", "reserved", + "timestamp lo", "timestamp hi", "pfp read", "pfp write", + "", "", "me read", "me write", "", "", "crashdump read", + "crashdump write" }; + + dev_err_ratelimited(gpu->dev->dev, + "CP | AHB error | addr=%X access=%s error=%d | status=0x%8.8X\n", + status & 0xFFFFF, access[(status >> 24) & 0xF], + (status & (1 << 31)), status); + } +} + +static void a5xx_rbbm_err_irq(struct msm_gpu *gpu, u32 status) +{ + if (status & A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR) { + u32 val = gpu_read(gpu, REG_A5XX_RBBM_AHB_ERROR_STATUS); + + dev_err_ratelimited(gpu->dev->dev, + "RBBM | AHB bus error | %s | addr=0x%X | ports=0x%X:0x%X\n", + val & (1 << 28) ? "WRITE" : "READ", + (val & 0xFFFFF) >> 2, (val >> 20) & 0x3, + (val >> 24) & 0xF); + + /* Clear the error */ + gpu_write(gpu, REG_A5XX_RBBM_AHB_CMD, (1 << 4)); + + /* Clear the interrupt */ + gpu_write(gpu, REG_A5XX_RBBM_INT_CLEAR_CMD, + A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR); + } + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_TRANSFER_TIMEOUT) + dev_err_ratelimited(gpu->dev->dev, "RBBM | AHB transfer timeout\n"); + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_ME_MS_TIMEOUT) + dev_err_ratelimited(gpu->dev->dev, "RBBM | ME master split | status=0x%X\n", + gpu_read(gpu, REG_A5XX_RBBM_AHB_ME_SPLIT_STATUS)); + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_PFP_MS_TIMEOUT) + dev_err_ratelimited(gpu->dev->dev, "RBBM | PFP master split | status=0x%X\n", + gpu_read(gpu, REG_A5XX_RBBM_AHB_PFP_SPLIT_STATUS)); + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_ETS_MS_TIMEOUT) + dev_err_ratelimited(gpu->dev->dev, "RBBM | ETS master split | status=0x%X\n", + gpu_read(gpu, REG_A5XX_RBBM_AHB_ETS_SPLIT_STATUS)); + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNC_OVERFLOW) + dev_err_ratelimited(gpu->dev->dev, "RBBM | ATB ASYNC overflow\n"); + + if (status & A5XX_RBBM_INT_0_MASK_RBBM_ATB_BUS_OVERFLOW) + dev_err_ratelimited(gpu->dev->dev, "RBBM | ATB bus overflow\n"); +} + +static void a5xx_uche_err_irq(struct msm_gpu *gpu) +{ + uint64_t addr = (uint64_t) gpu_read(gpu, REG_A5XX_UCHE_TRAP_LOG_HI); + + addr |= gpu_read(gpu, REG_A5XX_UCHE_TRAP_LOG_LO); + + dev_err_ratelimited(gpu->dev->dev, "UCHE | Out of bounds access | addr=0x%llX\n", + addr); +} + +static void a5xx_gpmu_err_irq(struct msm_gpu *gpu) +{ + dev_err_ratelimited(gpu->dev->dev, "GPMU | voltage droop\n"); +} + +static void a5xx_fault_detect_irq(struct msm_gpu *gpu) +{ + struct drm_device *dev = gpu->dev; + struct msm_ringbuffer *ring = gpu->funcs->active_ring(gpu); + + /* + * If stalled on SMMU fault, we could trip the GPU's hang detection, + * but the fault handler will trigger the devcore dump, and we want + * to otherwise resume normally rather than killing the submit, so + * just bail. + */ + if (gpu_read(gpu, REG_A5XX_RBBM_STATUS3) & BIT(24)) + return; + + DRM_DEV_ERROR(dev->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->fctx->last_fence : 0, + gpu_read(gpu, REG_A5XX_RBBM_STATUS), + gpu_read(gpu, REG_A5XX_CP_RB_RPTR), + gpu_read(gpu, REG_A5XX_CP_RB_WPTR), + gpu_read64(gpu, REG_A5XX_CP_IB1_BASE), + gpu_read(gpu, REG_A5XX_CP_IB1_BUFSZ), + gpu_read64(gpu, REG_A5XX_CP_IB2_BASE), + gpu_read(gpu, REG_A5XX_CP_IB2_BUFSZ)); + + /* Turn off the hangcheck timer to keep it from bothering us */ + del_timer(&gpu->hangcheck_timer); + + kthread_queue_work(gpu->worker, &gpu->recover_work); +} + +#define RBBM_ERROR_MASK \ + (A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR | \ + A5XX_RBBM_INT_0_MASK_RBBM_TRANSFER_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ME_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_PFP_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ETS_MS_TIMEOUT | \ + A5XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNC_OVERFLOW) + +static irqreturn_t a5xx_irq(struct msm_gpu *gpu) +{ + struct msm_drm_private *priv = gpu->dev->dev_private; + u32 status = gpu_read(gpu, REG_A5XX_RBBM_INT_0_STATUS); + + /* + * Clear all the interrupts except RBBM_AHB_ERROR - if we clear it + * before the source is cleared the interrupt will storm. + */ + gpu_write(gpu, REG_A5XX_RBBM_INT_CLEAR_CMD, + status & ~A5XX_RBBM_INT_0_MASK_RBBM_AHB_ERROR); + + if (priv->disable_err_irq) { + status &= A5XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS | + A5XX_RBBM_INT_0_MASK_CP_SW; + } + + /* Pass status to a5xx_rbbm_err_irq because we've already cleared it */ + if (status & RBBM_ERROR_MASK) + a5xx_rbbm_err_irq(gpu, status); + + if (status & A5XX_RBBM_INT_0_MASK_CP_HW_ERROR) + a5xx_cp_err_irq(gpu); + + if (status & A5XX_RBBM_INT_0_MASK_MISC_HANG_DETECT) + a5xx_fault_detect_irq(gpu); + + if (status & A5XX_RBBM_INT_0_MASK_UCHE_OOB_ACCESS) + a5xx_uche_err_irq(gpu); + + if (status & A5XX_RBBM_INT_0_MASK_GPMU_VOLTAGE_DROOP) + a5xx_gpmu_err_irq(gpu); + + if (status & A5XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS) { + a5xx_preempt_trigger(gpu); + msm_gpu_retire(gpu); + } + + if (status & A5XX_RBBM_INT_0_MASK_CP_SW) + a5xx_preempt_irq(gpu); + + return IRQ_HANDLED; +} + +static const u32 a5xx_registers[] = { + 0x0000, 0x0002, 0x0004, 0x0020, 0x0022, 0x0026, 0x0029, 0x002B, + 0x002E, 0x0035, 0x0038, 0x0042, 0x0044, 0x0044, 0x0047, 0x0095, + 0x0097, 0x00BB, 0x03A0, 0x0464, 0x0469, 0x046F, 0x04D2, 0x04D3, + 0x04E0, 0x0533, 0x0540, 0x0555, 0x0800, 0x081A, 0x081F, 0x0841, + 0x0860, 0x0860, 0x0880, 0x08A0, 0x0B00, 0x0B12, 0x0B15, 0x0B28, + 0x0B78, 0x0B7F, 0x0BB0, 0x0BBD, 0x0BC0, 0x0BC6, 0x0BD0, 0x0C53, + 0x0C60, 0x0C61, 0x0C80, 0x0C82, 0x0C84, 0x0C85, 0x0C90, 0x0C98, + 0x0CA0, 0x0CA0, 0x0CB0, 0x0CB2, 0x2180, 0x2185, 0x2580, 0x2585, + 0x0CC1, 0x0CC1, 0x0CC4, 0x0CC7, 0x0CCC, 0x0CCC, 0x0CD0, 0x0CD8, + 0x0CE0, 0x0CE5, 0x0CE8, 0x0CE8, 0x0CEC, 0x0CF1, 0x0CFB, 0x0D0E, + 0x2100, 0x211E, 0x2140, 0x2145, 0x2500, 0x251E, 0x2540, 0x2545, + 0x0D10, 0x0D17, 0x0D20, 0x0D23, 0x0D30, 0x0D30, 0x20C0, 0x20C0, + 0x24C0, 0x24C0, 0x0E40, 0x0E43, 0x0E4A, 0x0E4A, 0x0E50, 0x0E57, + 0x0E60, 0x0E7C, 0x0E80, 0x0E8E, 0x0E90, 0x0E96, 0x0EA0, 0x0EA8, + 0x0EB0, 0x0EB2, 0xE140, 0xE147, 0xE150, 0xE187, 0xE1A0, 0xE1A9, + 0xE1B0, 0xE1B6, 0xE1C0, 0xE1C7, 0xE1D0, 0xE1D1, 0xE200, 0xE201, + 0xE210, 0xE21C, 0xE240, 0xE268, 0xE000, 0xE006, 0xE010, 0xE09A, + 0xE0A0, 0xE0A4, 0xE0AA, 0xE0EB, 0xE100, 0xE105, 0xE380, 0xE38F, + 0xE3B0, 0xE3B0, 0xE400, 0xE405, 0xE408, 0xE4E9, 0xE4F0, 0xE4F0, + 0xE280, 0xE280, 0xE282, 0xE2A3, 0xE2A5, 0xE2C2, 0xE940, 0xE947, + 0xE950, 0xE987, 0xE9A0, 0xE9A9, 0xE9B0, 0xE9B6, 0xE9C0, 0xE9C7, + 0xE9D0, 0xE9D1, 0xEA00, 0xEA01, 0xEA10, 0xEA1C, 0xEA40, 0xEA68, + 0xE800, 0xE806, 0xE810, 0xE89A, 0xE8A0, 0xE8A4, 0xE8AA, 0xE8EB, + 0xE900, 0xE905, 0xEB80, 0xEB8F, 0xEBB0, 0xEBB0, 0xEC00, 0xEC05, + 0xEC08, 0xECE9, 0xECF0, 0xECF0, 0xEA80, 0xEA80, 0xEA82, 0xEAA3, + 0xEAA5, 0xEAC2, 0xA800, 0xA800, 0xA820, 0xA828, 0xA840, 0xA87D, + 0XA880, 0xA88D, 0xA890, 0xA8A3, 0xA8D0, 0xA8D8, 0xA8E0, 0xA8F5, + 0xAC60, 0xAC60, ~0, +}; + +static void a5xx_dump(struct msm_gpu *gpu) +{ + DRM_DEV_INFO(gpu->dev->dev, "status: %08x\n", + gpu_read(gpu, REG_A5XX_RBBM_STATUS)); + adreno_dump(gpu); +} + +static int a5xx_pm_resume(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + int ret; + + /* Turn on the core power */ + ret = msm_gpu_pm_resume(gpu); + if (ret) + return ret; + + /* Adreno 506, 508, 509, 510, 512 needs manual RBBM sus/res control */ + if (!(adreno_is_a530(adreno_gpu) || adreno_is_a540(adreno_gpu))) { + /* Halt the sp_input_clk at HM level */ + gpu_write(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0x00000055); + a5xx_set_hwcg(gpu, true); + /* Turn on sp_input_clk at HM level */ + gpu_rmw(gpu, REG_A5XX_RBBM_CLOCK_CNTL, 0xff, 0); + return 0; + } + + /* Turn the RBCCU domain first to limit the chances of voltage droop */ + gpu_write(gpu, REG_A5XX_GPMU_RBCCU_POWER_CNTL, 0x778000); + + /* Wait 3 usecs before polling */ + udelay(3); + + ret = spin_usecs(gpu, 20, REG_A5XX_GPMU_RBCCU_PWR_CLK_STATUS, + (1 << 20), (1 << 20)); + if (ret) { + DRM_ERROR("%s: timeout waiting for RBCCU GDSC enable: %X\n", + gpu->name, + gpu_read(gpu, REG_A5XX_GPMU_RBCCU_PWR_CLK_STATUS)); + return ret; + } + + /* Turn on the SP domain */ + gpu_write(gpu, REG_A5XX_GPMU_SP_POWER_CNTL, 0x778000); + ret = spin_usecs(gpu, 20, REG_A5XX_GPMU_SP_PWR_CLK_STATUS, + (1 << 20), (1 << 20)); + if (ret) + DRM_ERROR("%s: timeout waiting for SP GDSC enable\n", + gpu->name); + + return ret; +} + +static int a5xx_pm_suspend(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + u32 mask = 0xf; + int i, ret; + + /* A506, A508, A510 have 3 XIN ports in VBIF */ + if (adreno_is_a506(adreno_gpu) || adreno_is_a508(adreno_gpu) || + adreno_is_a510(adreno_gpu)) + mask = 0x7; + + /* Clear the VBIF pipe before shutting down */ + gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, mask); + spin_until((gpu_read(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL1) & + mask) == mask); + + gpu_write(gpu, REG_A5XX_VBIF_XIN_HALT_CTRL0, 0); + + /* + * Reset the VBIF before power collapse to avoid issue with FIFO + * entries on Adreno A510 and A530 (the others will tend to lock up) + */ + if (adreno_is_a510(adreno_gpu) || adreno_is_a530(adreno_gpu)) { + gpu_write(gpu, REG_A5XX_RBBM_BLOCK_SW_RESET_CMD, 0x003C0000); + gpu_write(gpu, REG_A5XX_RBBM_BLOCK_SW_RESET_CMD, 0x00000000); + } + + ret = msm_gpu_pm_suspend(gpu); + if (ret) + return ret; + + if (a5xx_gpu->has_whereami) + for (i = 0; i < gpu->nr_rings; i++) + a5xx_gpu->shadow[i] = 0; + + return 0; +} + +static int a5xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value) +{ + *value = gpu_read64(gpu, REG_A5XX_RBBM_ALWAYSON_COUNTER_LO); + + return 0; +} + +struct a5xx_crashdumper { + void *ptr; + struct drm_gem_object *bo; + u64 iova; +}; + +struct a5xx_gpu_state { + struct msm_gpu_state base; + u32 *hlsqregs; +}; + +static int a5xx_crashdumper_init(struct msm_gpu *gpu, + struct a5xx_crashdumper *dumper) +{ + dumper->ptr = msm_gem_kernel_new(gpu->dev, + SZ_1M, MSM_BO_WC, gpu->aspace, + &dumper->bo, &dumper->iova); + + if (!IS_ERR(dumper->ptr)) + msm_gem_object_set_name(dumper->bo, "crashdump"); + + return PTR_ERR_OR_ZERO(dumper->ptr); +} + +static int a5xx_crashdumper_run(struct msm_gpu *gpu, + struct a5xx_crashdumper *dumper) +{ + u32 val; + + if (IS_ERR_OR_NULL(dumper->ptr)) + return -EINVAL; + + gpu_write64(gpu, REG_A5XX_CP_CRASH_SCRIPT_BASE_LO, dumper->iova); + + gpu_write(gpu, REG_A5XX_CP_CRASH_DUMP_CNTL, 1); + + return gpu_poll_timeout(gpu, REG_A5XX_CP_CRASH_DUMP_CNTL, val, + val & 0x04, 100, 10000); +} + +/* + * These are a list of the registers that need to be read through the HLSQ + * aperture through the crashdumper. These are not nominally accessible from + * the CPU on a secure platform. + */ +static const struct { + u32 type; + u32 regoffset; + u32 count; +} a5xx_hlsq_aperture_regs[] = { + { 0x35, 0xe00, 0x32 }, /* HSLQ non-context */ + { 0x31, 0x2080, 0x1 }, /* HLSQ 2D context 0 */ + { 0x33, 0x2480, 0x1 }, /* HLSQ 2D context 1 */ + { 0x32, 0xe780, 0x62 }, /* HLSQ 3D context 0 */ + { 0x34, 0xef80, 0x62 }, /* HLSQ 3D context 1 */ + { 0x3f, 0x0ec0, 0x40 }, /* SP non-context */ + { 0x3d, 0x2040, 0x1 }, /* SP 2D context 0 */ + { 0x3b, 0x2440, 0x1 }, /* SP 2D context 1 */ + { 0x3e, 0xe580, 0x170 }, /* SP 3D context 0 */ + { 0x3c, 0xed80, 0x170 }, /* SP 3D context 1 */ + { 0x3a, 0x0f00, 0x1c }, /* TP non-context */ + { 0x38, 0x2000, 0xa }, /* TP 2D context 0 */ + { 0x36, 0x2400, 0xa }, /* TP 2D context 1 */ + { 0x39, 0xe700, 0x80 }, /* TP 3D context 0 */ + { 0x37, 0xef00, 0x80 }, /* TP 3D context 1 */ +}; + +static void a5xx_gpu_state_get_hlsq_regs(struct msm_gpu *gpu, + struct a5xx_gpu_state *a5xx_state) +{ + struct a5xx_crashdumper dumper = { 0 }; + u32 offset, count = 0; + u64 *ptr; + int i; + + if (a5xx_crashdumper_init(gpu, &dumper)) + return; + + /* The script will be written at offset 0 */ + ptr = dumper.ptr; + + /* Start writing the data at offset 256k */ + offset = dumper.iova + (256 * SZ_1K); + + /* Count how many additional registers to get from the HLSQ aperture */ + for (i = 0; i < ARRAY_SIZE(a5xx_hlsq_aperture_regs); i++) + count += a5xx_hlsq_aperture_regs[i].count; + + a5xx_state->hlsqregs = kcalloc(count, sizeof(u32), GFP_KERNEL); + if (!a5xx_state->hlsqregs) + return; + + /* Build the crashdump script */ + for (i = 0; i < ARRAY_SIZE(a5xx_hlsq_aperture_regs); i++) { + u32 type = a5xx_hlsq_aperture_regs[i].type; + u32 c = a5xx_hlsq_aperture_regs[i].count; + + /* Write the register to select the desired bank */ + *ptr++ = ((u64) type << 8); + *ptr++ = (((u64) REG_A5XX_HLSQ_DBG_READ_SEL) << 44) | + (1 << 21) | 1; + + *ptr++ = offset; + *ptr++ = (((u64) REG_A5XX_HLSQ_DBG_AHB_READ_APERTURE) << 44) + | c; + + offset += c * sizeof(u32); + } + + /* Write two zeros to close off the script */ + *ptr++ = 0; + *ptr++ = 0; + + if (a5xx_crashdumper_run(gpu, &dumper)) { + kfree(a5xx_state->hlsqregs); + msm_gem_kernel_put(dumper.bo, gpu->aspace); + return; + } + + /* Copy the data from the crashdumper to the state */ + memcpy(a5xx_state->hlsqregs, dumper.ptr + (256 * SZ_1K), + count * sizeof(u32)); + + msm_gem_kernel_put(dumper.bo, gpu->aspace); +} + +static struct msm_gpu_state *a5xx_gpu_state_get(struct msm_gpu *gpu) +{ + struct a5xx_gpu_state *a5xx_state = kzalloc(sizeof(*a5xx_state), + GFP_KERNEL); + bool stalled = !!(gpu_read(gpu, REG_A5XX_RBBM_STATUS3) & BIT(24)); + + if (!a5xx_state) + return ERR_PTR(-ENOMEM); + + /* Temporarily disable hardware clock gating before reading the hw */ + a5xx_set_hwcg(gpu, false); + + /* First get the generic state from the adreno core */ + adreno_gpu_state_get(gpu, &(a5xx_state->base)); + + a5xx_state->base.rbbm_status = gpu_read(gpu, REG_A5XX_RBBM_STATUS); + + /* + * Get the HLSQ regs with the help of the crashdumper, but only if + * we are not stalled in an iommu fault (in which case the crashdumper + * would not have access to memory) + */ + if (!stalled) + a5xx_gpu_state_get_hlsq_regs(gpu, a5xx_state); + + a5xx_set_hwcg(gpu, true); + + return &a5xx_state->base; +} + +static void a5xx_gpu_state_destroy(struct kref *kref) +{ + struct msm_gpu_state *state = container_of(kref, + struct msm_gpu_state, ref); + struct a5xx_gpu_state *a5xx_state = container_of(state, + struct a5xx_gpu_state, base); + + kfree(a5xx_state->hlsqregs); + + adreno_gpu_state_destroy(state); + kfree(a5xx_state); +} + +static int a5xx_gpu_state_put(struct msm_gpu_state *state) +{ + if (IS_ERR_OR_NULL(state)) + return 1; + + return kref_put(&state->ref, a5xx_gpu_state_destroy); +} + + +#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP) +static void a5xx_show(struct msm_gpu *gpu, struct msm_gpu_state *state, + struct drm_printer *p) +{ + int i, j; + u32 pos = 0; + struct a5xx_gpu_state *a5xx_state = container_of(state, + struct a5xx_gpu_state, base); + + if (IS_ERR_OR_NULL(state)) + return; + + adreno_show(gpu, state, p); + + /* Dump the additional a5xx HLSQ registers */ + if (!a5xx_state->hlsqregs) + return; + + drm_printf(p, "registers-hlsq:\n"); + + for (i = 0; i < ARRAY_SIZE(a5xx_hlsq_aperture_regs); i++) { + u32 o = a5xx_hlsq_aperture_regs[i].regoffset; + u32 c = a5xx_hlsq_aperture_regs[i].count; + + for (j = 0; j < c; j++, pos++, o++) { + /* + * To keep the crashdump simple we pull the entire range + * for each register type but not all of the registers + * in the range are valid. Fortunately invalid registers + * stick out like a sore thumb with a value of + * 0xdeadbeef + */ + if (a5xx_state->hlsqregs[pos] == 0xdeadbeef) + continue; + + drm_printf(p, " - { offset: 0x%04x, value: 0x%08x }\n", + o << 2, a5xx_state->hlsqregs[pos]); + } + } +} +#endif + +static struct msm_ringbuffer *a5xx_active_ring(struct msm_gpu *gpu) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + + return a5xx_gpu->cur_ring; +} + +static u64 a5xx_gpu_busy(struct msm_gpu *gpu, unsigned long *out_sample_rate) +{ + u64 busy_cycles; + + busy_cycles = gpu_read64(gpu, REG_A5XX_RBBM_PERFCTR_RBBM_0_LO); + *out_sample_rate = clk_get_rate(gpu->core_clk); + + return busy_cycles; +} + +static uint32_t a5xx_get_rptr(struct msm_gpu *gpu, struct msm_ringbuffer *ring) +{ + struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu); + struct a5xx_gpu *a5xx_gpu = to_a5xx_gpu(adreno_gpu); + + if (a5xx_gpu->has_whereami) + return a5xx_gpu->shadow[ring->id]; + + return ring->memptrs->rptr = gpu_read(gpu, REG_A5XX_CP_RB_RPTR); +} + +static const struct adreno_gpu_funcs funcs = { + .base = { + .get_param = adreno_get_param, + .set_param = adreno_set_param, + .hw_init = a5xx_hw_init, + .pm_suspend = a5xx_pm_suspend, + .pm_resume = a5xx_pm_resume, + .recover = a5xx_recover, + .submit = a5xx_submit, + .active_ring = a5xx_active_ring, + .irq = a5xx_irq, + .destroy = a5xx_destroy, +#if defined(CONFIG_DEBUG_FS) || defined(CONFIG_DEV_COREDUMP) + .show = a5xx_show, +#endif +#if defined(CONFIG_DEBUG_FS) + .debugfs_init = a5xx_debugfs_init, +#endif + .gpu_busy = a5xx_gpu_busy, + .gpu_state_get = a5xx_gpu_state_get, + .gpu_state_put = a5xx_gpu_state_put, + .create_address_space = adreno_iommu_create_address_space, + .get_rptr = a5xx_get_rptr, + }, + .get_timestamp = a5xx_get_timestamp, +}; + +static void check_speed_bin(struct device *dev) +{ + struct nvmem_cell *cell; + u32 val; + + /* + * If the OPP table specifies a opp-supported-hw property then we have + * to set something with dev_pm_opp_set_supported_hw() or the table + * doesn't get populated so pick an arbitrary value that should + * ensure the default frequencies are selected but not conflict with any + * actual bins + */ + val = 0x80; + + cell = nvmem_cell_get(dev, "speed_bin"); + + if (!IS_ERR(cell)) { + void *buf = nvmem_cell_read(cell, NULL); + + if (!IS_ERR(buf)) { + u8 bin = *((u8 *) buf); + + val = (1 << bin); + kfree(buf); + } + + nvmem_cell_put(cell); + } + + devm_pm_opp_set_supported_hw(dev, &val, 1); +} + +struct msm_gpu *a5xx_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; + struct a5xx_gpu *a5xx_gpu = NULL; + struct adreno_gpu *adreno_gpu; + struct msm_gpu *gpu; + unsigned int nr_rings; + int ret; + + if (!pdev) { + DRM_DEV_ERROR(dev->dev, "No A5XX device is defined\n"); + return ERR_PTR(-ENXIO); + } + + a5xx_gpu = kzalloc(sizeof(*a5xx_gpu), GFP_KERNEL); + if (!a5xx_gpu) + return ERR_PTR(-ENOMEM); + + adreno_gpu = &a5xx_gpu->base; + gpu = &adreno_gpu->base; + + adreno_gpu->registers = a5xx_registers; + + a5xx_gpu->lm_leakage = 0x4E001A; + + check_speed_bin(&pdev->dev); + + nr_rings = 4; + + if (adreno_cmp_rev(ADRENO_REV(5, 1, 0, ANY_ID), config->rev)) + nr_rings = 1; + + ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, nr_rings); + if (ret) { + a5xx_destroy(&(a5xx_gpu->base.base)); + return ERR_PTR(ret); + } + + if (gpu->aspace) + msm_mmu_set_fault_handler(gpu->aspace->mmu, gpu, a5xx_fault_handler); + + /* Set up the preemption specific bits and pieces for each ringbuffer */ + a5xx_preempt_init(gpu); + + return gpu; +} |