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linux/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
Konrad Dybcio a452510aad drm/msm/adreno: Switch to the common UBWC config struct 
Now that Adreno specifics are out of the way, use the common config
(but leave the HBB hardcoding in place until that is wired up on the
other side).

Acked-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Patchwork: https://patchwork.freedesktop.org/patch/660985/
Signed-off-by: Rob Clark <robin.clark@oss.qualcomm.com>
2025-07-04 17:48:41 -07:00

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// 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/bitfield.h>
#include <linux/devfreq.h>
#include <linux/firmware/qcom/qcom_scm.h>
#include <linux/pm_domain.h>
#include <linux/soc/qcom/llcc-qcom.h>
#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 (!adreno_has_gmu_wrapper(adreno_gpu) && !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);
}
static 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 update_shadow_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);
/* Expanded APRIV doesn't need to issue the WHERE_AM_I opcode */
if (a6xx_gpu->has_whereami && !adreno_gpu->base.hw_apriv) {
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)));
}
}
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;
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);
/* Update HW if this is the current ring and we are not in preempt*/
if (!a6xx_in_preempt(a6xx_gpu)) {
if (a6xx_gpu->cur_ring == ring)
gpu_write(gpu, REG_A6XX_CP_RB_WPTR, wptr);
else
ring->restore_wptr = true;
} else {
ring->restore_wptr = true;
}
spin_unlock_irqrestore(&ring->preempt_lock, flags);
}
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_gem_submit *submit)
{
bool sysprof = refcount_read(&a6xx_gpu->base.base.sysprof_active) > 1;
struct msm_context *ctx = submit->queue->ctx;
struct drm_gpuvm *vm = msm_context_vm(submit->dev, ctx);
struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
phys_addr_t ttbr;
u32 asid;
u64 memptr = rbmemptr(ring, ttbr0);
if (ctx->seqno == ring->cur_ctx_seqno)
return;
if (msm_iommu_pagetable_params(to_msm_vm(vm)->mmu, &ttbr, &asid))
return;
if (adreno_gpu->info->family >= ADRENO_7XX_GEN1) {
/* Wait for previous submit to complete before continuing: */
OUT_PKT7(ring, CP_WAIT_TIMESTAMP, 4);
OUT_RING(ring, 0);
OUT_RING(ring, lower_32_bits(rbmemptr(ring, fence)));
OUT_RING(ring, upper_32_bits(rbmemptr(ring, fence)));
OUT_RING(ring, submit->seqno - 1);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BOTH);
/* Reset state used to synchronize BR and BV */
OUT_PKT7(ring, CP_RESET_CONTEXT_STATE, 1);
OUT_RING(ring,
CP_RESET_CONTEXT_STATE_0_CLEAR_ON_CHIP_TS |
CP_RESET_CONTEXT_STATE_0_CLEAR_RESOURCE_TABLE |
CP_RESET_CONTEXT_STATE_0_CLEAR_BV_BR_COUNTER |
CP_RESET_CONTEXT_STATE_0_RESET_GLOBAL_LOCAL_TS);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BR);
}
if (!sysprof) {
if (!adreno_is_a7xx(adreno_gpu)) {
/* Turn off protected mode to write to special registers */
OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1);
OUT_RING(ring, 0);
}
OUT_PKT4(ring, REG_A6XX_RBBM_PERFCTR_SRAM_INIT_CMD, 1);
OUT_RING(ring, 1);
}
/* 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.
* Needed for preemption
*/
OUT_PKT7(ring, CP_MEM_WRITE, 5);
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, upper_32_bits(ttbr));
OUT_RING(ring, ctx->seqno);
/*
* Sync both threads after switching pagetables and enable BR only
* to make sure BV doesn't race ahead while BR is still switching
* pagetables.
*/
if (adreno_is_a7xx(&a6xx_gpu->base)) {
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_THREAD_CONTROL_0_SYNC_THREADS | CP_SET_THREAD_BR);
}
/*
* 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, CACHE_INVALIDATE);
if (!sysprof) {
/*
* Wait for SRAM clear after the pgtable update, so the
* two can happen in parallel:
*/
OUT_PKT7(ring, CP_WAIT_REG_MEM, 6);
OUT_RING(ring, CP_WAIT_REG_MEM_0_FUNCTION(WRITE_EQ));
OUT_RING(ring, CP_WAIT_REG_MEM_1_POLL_ADDR_LO(
REG_A6XX_RBBM_PERFCTR_SRAM_INIT_STATUS));
OUT_RING(ring, CP_WAIT_REG_MEM_2_POLL_ADDR_HI(0));
OUT_RING(ring, CP_WAIT_REG_MEM_3_REF(0x1));
OUT_RING(ring, CP_WAIT_REG_MEM_4_MASK(0x1));
OUT_RING(ring, CP_WAIT_REG_MEM_5_DELAY_LOOP_CYCLES(0));
if (!adreno_is_a7xx(adreno_gpu)) {
/* Re-enable protected mode: */
OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1);
OUT_RING(ring, 1);
}
}
}
static void a6xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
{
unsigned int index = submit->seqno % MSM_GPU_SUBMIT_STATS_COUNT;
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, ibs = 0;
adreno_check_and_reenable_stall(adreno_gpu);
a6xx_set_pagetable(a6xx_gpu, ring, submit);
get_stats_counter(ring, REG_A6XX_RBBM_PERFCTR_CP(0),
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,
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 (ring->cur_ctx_seqno == submit->queue->ctx->seqno)
break;
fallthrough;
case MSM_SUBMIT_CMD_BUF:
OUT_PKT7(ring, CP_INDIRECT_BUFFER, 3);
OUT_RING(ring, lower_32_bits(submit->cmd[i].iova));
OUT_RING(ring, upper_32_bits(submit->cmd[i].iova));
OUT_RING(ring, A5XX_CP_INDIRECT_BUFFER_2_IB_SIZE(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);
}
get_stats_counter(ring, REG_A6XX_RBBM_PERFCTR_CP(0),
rbmemptr_stats(ring, index, cpcycles_end));
get_stats_counter(ring, REG_A6XX_CP_ALWAYS_ON_COUNTER,
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));
a6xx_flush(gpu, ring);
}
static void a6xx_emit_set_pseudo_reg(struct msm_ringbuffer *ring,
struct a6xx_gpu *a6xx_gpu, struct msm_gpu_submitqueue *queue)
{
u64 preempt_postamble;
OUT_PKT7(ring, CP_SET_PSEUDO_REG, 12);
OUT_RING(ring, SMMU_INFO);
/* don't save SMMU, we write the record from the kernel instead */
OUT_RING(ring, 0);
OUT_RING(ring, 0);
/* privileged and non secure buffer save */
OUT_RING(ring, NON_SECURE_SAVE_ADDR);
OUT_RING(ring, lower_32_bits(
a6xx_gpu->preempt_iova[ring->id]));
OUT_RING(ring, upper_32_bits(
a6xx_gpu->preempt_iova[ring->id]));
/* user context buffer save, seems to be unnused by fw */
OUT_RING(ring, NON_PRIV_SAVE_ADDR);
OUT_RING(ring, 0);
OUT_RING(ring, 0);
OUT_RING(ring, COUNTER);
/* seems OK to set to 0 to disable it */
OUT_RING(ring, 0);
OUT_RING(ring, 0);
/* Emit postamble to clear perfcounters */
preempt_postamble = a6xx_gpu->preempt_postamble_iova;
OUT_PKT7(ring, CP_SET_AMBLE, 3);
OUT_RING(ring, lower_32_bits(preempt_postamble));
OUT_RING(ring, upper_32_bits(preempt_postamble));
OUT_RING(ring, CP_SET_AMBLE_2_DWORDS(
a6xx_gpu->preempt_postamble_len) |
CP_SET_AMBLE_2_TYPE(KMD_AMBLE_TYPE));
}
static void a7xx_submit(struct msm_gpu *gpu, struct msm_gem_submit *submit)
{
unsigned int index = submit->seqno % MSM_GPU_SUBMIT_STATS_COUNT;
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, ibs = 0;
adreno_check_and_reenable_stall(adreno_gpu);
/*
* Toggle concurrent binning for pagetable switch and set the thread to
* BR since only it can execute the pagetable switch packets.
*/
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_THREAD_CONTROL_0_SYNC_THREADS | CP_SET_THREAD_BR);
a6xx_set_pagetable(a6xx_gpu, ring, submit);
/*
* If preemption is enabled, then set the pseudo register for the save
* sequence
*/
if (gpu->nr_rings > 1)
a6xx_emit_set_pseudo_reg(ring, a6xx_gpu, submit->queue);
get_stats_counter(ring, REG_A7XX_RBBM_PERFCTR_CP(0),
rbmemptr_stats(ring, index, cpcycles_start));
get_stats_counter(ring, REG_A6XX_CP_ALWAYS_ON_COUNTER,
rbmemptr_stats(ring, index, alwayson_start));
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BOTH);
OUT_PKT7(ring, CP_SET_MARKER, 1);
OUT_RING(ring, 0x101); /* IFPC disable */
if (submit->queue->flags & MSM_SUBMITQUEUE_ALLOW_PREEMPT) {
OUT_PKT7(ring, CP_SET_MARKER, 1);
OUT_RING(ring, 0x00d); /* IB1LIST start */
}
/* 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 (ring->cur_ctx_seqno == submit->queue->ctx->seqno)
break;
fallthrough;
case MSM_SUBMIT_CMD_BUF:
OUT_PKT7(ring, CP_INDIRECT_BUFFER, 3);
OUT_RING(ring, lower_32_bits(submit->cmd[i].iova));
OUT_RING(ring, upper_32_bits(submit->cmd[i].iova));
OUT_RING(ring, A5XX_CP_INDIRECT_BUFFER_2_IB_SIZE(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);
}
if (submit->queue->flags & MSM_SUBMITQUEUE_ALLOW_PREEMPT) {
OUT_PKT7(ring, CP_SET_MARKER, 1);
OUT_RING(ring, 0x00e); /* IB1LIST end */
}
get_stats_counter(ring, REG_A7XX_RBBM_PERFCTR_CP(0),
rbmemptr_stats(ring, index, cpcycles_end));
get_stats_counter(ring, REG_A6XX_CP_ALWAYS_ON_COUNTER,
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);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BR);
OUT_PKT7(ring, CP_EVENT_WRITE, 1);
OUT_RING(ring, CCU_INVALIDATE_DEPTH);
OUT_PKT7(ring, CP_EVENT_WRITE, 1);
OUT_RING(ring, CCU_INVALIDATE_COLOR);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BV);
/*
* Make sure the timestamp is committed once BV pipe is
* completely done with this submission.
*/
OUT_PKT7(ring, CP_EVENT_WRITE, 4);
OUT_RING(ring, CACHE_CLEAN | BIT(27));
OUT_RING(ring, lower_32_bits(rbmemptr(ring, bv_fence)));
OUT_RING(ring, upper_32_bits(rbmemptr(ring, bv_fence)));
OUT_RING(ring, submit->seqno);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BR);
/*
* This makes sure that BR doesn't race ahead and commit
* timestamp to memstore while BV is still processing
* this submission.
*/
OUT_PKT7(ring, CP_WAIT_TIMESTAMP, 4);
OUT_RING(ring, 0);
OUT_RING(ring, lower_32_bits(rbmemptr(ring, bv_fence)));
OUT_RING(ring, upper_32_bits(rbmemptr(ring, bv_fence)));
OUT_RING(ring, submit->seqno);
a6xx_gpu->last_seqno[ring->id] = submit->seqno;
/* write the ringbuffer timestamp */
OUT_PKT7(ring, CP_EVENT_WRITE, 4);
OUT_RING(ring, CACHE_CLEAN | CP_EVENT_WRITE_0_IRQ | BIT(27));
OUT_RING(ring, lower_32_bits(rbmemptr(ring, fence)));
OUT_RING(ring, upper_32_bits(rbmemptr(ring, fence)));
OUT_RING(ring, submit->seqno);
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, CP_SET_THREAD_BOTH);
OUT_PKT7(ring, CP_SET_MARKER, 1);
OUT_RING(ring, 0x100); /* IFPC enable */
/* If preemption is enabled */
if (gpu->nr_rings > 1) {
/* 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);
/* generate interrupt on preemption completion */
OUT_RING(ring, 0x00);
}
trace_msm_gpu_submit_flush(submit,
gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER));
a6xx_flush(gpu, ring);
/* Check to see if we need to start preemption */
a6xx_preempt_trigger(gpu);
}
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 cgc_delay, cgc_hyst;
u32 val, clock_cntl_on;
if (!(adreno_gpu->info->a6xx->hwcg || adreno_is_a7xx(adreno_gpu)))
return;
if (adreno_is_a630(adreno_gpu))
clock_cntl_on = 0x8aa8aa02;
else if (adreno_is_a610(adreno_gpu))
clock_cntl_on = 0xaaa8aa82;
else if (adreno_is_a702(adreno_gpu))
clock_cntl_on = 0xaaaaaa82;
else
clock_cntl_on = 0x8aa8aa82;
cgc_delay = adreno_is_a615_family(adreno_gpu) ? 0x111 : 0x10111;
cgc_hyst = adreno_is_a615_family(adreno_gpu) ? 0x555 : 0x5555;
gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_MODE_CNTL,
state ? adreno_gpu->info->a6xx->gmu_cgc_mode : 0);
gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_DELAY_CNTL,
state ? cgc_delay : 0);
gmu_write(&a6xx_gpu->gmu, REG_A6XX_GPU_GMU_AO_GMU_CGC_HYST_CNTL,
state ? cgc_hyst : 0);
if (!adreno_gpu->info->a6xx->hwcg) {
gpu_write(gpu, REG_A7XX_RBBM_CLOCK_CNTL_GLOBAL, 1);
gpu_write(gpu, REG_A7XX_RBBM_CGC_GLOBAL_LOAD_CMD, state ? 1 : 0);
if (state) {
gpu_write(gpu, REG_A7XX_RBBM_CGC_P2S_TRIG_CMD, 1);
if (gpu_poll_timeout(gpu, REG_A7XX_RBBM_CGC_P2S_STATUS, val,
val & A7XX_RBBM_CGC_P2S_STATUS_TXDONE, 1, 10)) {
dev_err(&gpu->pdev->dev, "RBBM_CGC_P2S_STATUS TXDONE Poll failed\n");
return;
}
gpu_write(gpu, REG_A7XX_RBBM_CLOCK_CNTL_GLOBAL, 0);
}
return;
}
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 */
if (!adreno_is_a610_family(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
gmu_rmw(gmu, REG_A6XX_GPU_GMU_GX_SPTPRAC_CLOCK_CONTROL, 1, 0);
for (i = 0; (reg = &adreno_gpu->info->a6xx->hwcg[i], reg->offset); i++)
gpu_write(gpu, reg->offset, state ? reg->value : 0);
/* Enable SP clock */
if (!adreno_is_a610_family(adreno_gpu) && !adreno_is_a7xx(adreno_gpu))
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);
}
static void a6xx_set_cp_protect(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
const struct adreno_protect *protect = adreno_gpu->info->a6xx->protect;
unsigned i;
/*
* 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,
A6XX_CP_PROTECT_CNTL_ACCESS_PROT_EN |
A6XX_CP_PROTECT_CNTL_ACCESS_FAULT_ON_VIOL_EN |
A6XX_CP_PROTECT_CNTL_LAST_SPAN_INF_RANGE);
for (i = 0; i < protect->count - 1; i++) {
/* Intentionally skip writing to some registers */
if (protect->regs[i])
gpu_write(gpu, REG_A6XX_CP_PROTECT(i), protect->regs[i]);
}
/* last CP_PROTECT to have "infinite" length on the last entry */
gpu_write(gpu, REG_A6XX_CP_PROTECT(protect->count_max - 1), protect->regs[i]);
}
static int a6xx_calc_ubwc_config(struct adreno_gpu *gpu)
{
const struct qcom_ubwc_cfg_data *common_cfg;
struct qcom_ubwc_cfg_data *cfg = &gpu->_ubwc_config;
/* Inherit the common config and make some necessary fixups */
common_cfg = qcom_ubwc_config_get_data();
if (IS_ERR(common_cfg))
return PTR_ERR(common_cfg);
/* Copy the data into the internal struct to drop the const qualifier (temporarily) */
*cfg = *common_cfg;
cfg->ubwc_swizzle = 0x6;
cfg->highest_bank_bit = 15;
if (adreno_is_a610(gpu)) {
cfg->highest_bank_bit = 13;
cfg->ubwc_swizzle = 0x7;
}
if (adreno_is_a618(gpu))
cfg->highest_bank_bit = 14;
if (adreno_is_a619(gpu))
/* TODO: Should be 14 but causes corruption at e.g. 1920x1200 on DP */
cfg->highest_bank_bit = 13;
if (adreno_is_a619_holi(gpu))
cfg->highest_bank_bit = 13;
if (adreno_is_a621(gpu))
cfg->highest_bank_bit = 13;
if (adreno_is_a623(gpu))
cfg->highest_bank_bit = 16;
if (adreno_is_a650(gpu) ||
adreno_is_a660(gpu) ||
adreno_is_a690(gpu) ||
adreno_is_a730(gpu) ||
adreno_is_a740_family(gpu)) {
/* TODO: get ddr type from bootloader and use 15 for LPDDR4 */
cfg->highest_bank_bit = 16;
}
if (adreno_is_a663(gpu)) {
cfg->highest_bank_bit = 13;
cfg->ubwc_swizzle = 0x4;
}
if (adreno_is_7c3(gpu))
cfg->highest_bank_bit = 14;
if (adreno_is_a702(gpu))
cfg->highest_bank_bit = 14;
if (cfg->highest_bank_bit != common_cfg->highest_bank_bit)
DRM_WARN_ONCE("Inconclusive highest_bank_bit value: %u (GPU) vs %u (UBWC_CFG)\n",
cfg->highest_bank_bit, common_cfg->highest_bank_bit);
if (cfg->ubwc_swizzle != common_cfg->ubwc_swizzle)
DRM_WARN_ONCE("Inconclusive ubwc_swizzle value: %u (GPU) vs %u (UBWC_CFG)\n",
cfg->ubwc_swizzle, common_cfg->ubwc_swizzle);
gpu->ubwc_config = &gpu->_ubwc_config;
return 0;
}
static void a6xx_set_ubwc_config(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
const struct qcom_ubwc_cfg_data *cfg = adreno_gpu->ubwc_config;
/*
* We subtract 13 from the highest bank bit (13 is the minimum value
* allowed by hw) and write the lowest two bits of the remaining value
* as hbb_lo and the one above it as hbb_hi to the hardware.
*/
BUG_ON(cfg->highest_bank_bit < 13);
u32 hbb = cfg->highest_bank_bit - 13;
bool rgb565_predicator = cfg->ubwc_enc_version >= UBWC_4_0;
u32 level2_swizzling_dis = !(cfg->ubwc_swizzle & UBWC_SWIZZLE_ENABLE_LVL2);
bool ubwc_mode = qcom_ubwc_get_ubwc_mode(cfg);
bool amsbc = cfg->ubwc_enc_version >= UBWC_3_0;
bool min_acc_len_64b = false;
u8 uavflagprd_inv = 0;
u32 hbb_hi = hbb >> 2;
u32 hbb_lo = hbb & 3;
if (adreno_is_a650_family(adreno_gpu) || adreno_is_a7xx(adreno_gpu))
uavflagprd_inv = 2;
if (adreno_is_a610(adreno_gpu) || adreno_is_a702(adreno_gpu))
min_acc_len_64b = true;
gpu_write(gpu, REG_A6XX_RB_NC_MODE_CNTL,
level2_swizzling_dis << 12 |
rgb565_predicator << 11 |
hbb_hi << 10 | amsbc << 4 |
min_acc_len_64b << 3 |
hbb_lo << 1 | ubwc_mode);
gpu_write(gpu, REG_A6XX_TPL1_NC_MODE_CNTL,
level2_swizzling_dis << 6 | hbb_hi << 4 |
min_acc_len_64b << 3 |
hbb_lo << 1 | ubwc_mode);
gpu_write(gpu, REG_A6XX_SP_NC_MODE_CNTL,
level2_swizzling_dis << 12 | hbb_hi << 10 |
uavflagprd_inv << 4 |
min_acc_len_64b << 3 |
hbb_lo << 1 | ubwc_mode);
if (adreno_is_a7xx(adreno_gpu))
gpu_write(gpu, REG_A7XX_GRAS_NC_MODE_CNTL,
FIELD_PREP(GENMASK(8, 5), hbb_lo));
gpu_write(gpu, REG_A6XX_UCHE_MODE_CNTL,
min_acc_len_64b << 23 | hbb_lo << 21);
gpu_write(gpu, REG_A6XX_RBBM_NC_MODE_CNTL,
cfg->macrotile_mode);
}
static void a7xx_patch_pwrup_reglist(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
const struct adreno_reglist_list *reglist;
void *ptr = a6xx_gpu->pwrup_reglist_ptr;
struct cpu_gpu_lock *lock = ptr;
u32 *dest = (u32 *)&lock->regs[0];
int i;
reglist = adreno_gpu->info->a6xx->pwrup_reglist;
lock->gpu_req = lock->cpu_req = lock->turn = 0;
lock->ifpc_list_len = 0;
lock->preemption_list_len = reglist->count;
/*
* For each entry in each of the lists, write the offset and the current
* register value into the GPU buffer
*/
for (i = 0; i < reglist->count; i++) {
*dest++ = reglist->regs[i];
*dest++ = gpu_read(gpu, reglist->regs[i]);
}
/*
* The overall register list is composed of
* 1. Static IFPC-only registers
* 2. Static IFPC + preemption registers
* 3. Dynamic IFPC + preemption registers (ex: perfcounter selects)
*
* The first two lists are static. Size of these lists are stored as
* number of pairs in ifpc_list_len and preemption_list_len
* respectively. With concurrent binning, Some of the perfcounter
* registers being virtualized, CP needs to know the pipe id to program
* the aperture inorder to restore the same. Thus, third list is a
* dynamic list with triplets as
* (<aperture, shifted 12 bits> <address> <data>), and the length is
* stored as number for triplets in dynamic_list_len.
*/
lock->dynamic_list_len = 0;
}
static int a7xx_preempt_start(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
struct msm_ringbuffer *ring = gpu->rb[0];
if (gpu->nr_rings <= 1)
return 0;
/* Turn CP protection off */
OUT_PKT7(ring, CP_SET_PROTECTED_MODE, 1);
OUT_RING(ring, 0);
a6xx_emit_set_pseudo_reg(ring, a6xx_gpu, NULL);
/* 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, 0x00);
/* Generate interrupt on preemption completion */
OUT_RING(ring, 0x00);
a6xx_flush(gpu, ring);
return a6xx_idle(gpu, ring) ? 0 : -EINVAL;
}
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 int a7xx_cp_init(struct msm_gpu *gpu)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
struct msm_ringbuffer *ring = gpu->rb[0];
u32 mask;
/* Disable concurrent binning before sending CP init */
OUT_PKT7(ring, CP_THREAD_CONTROL, 1);
OUT_RING(ring, BIT(27));
OUT_PKT7(ring, CP_ME_INIT, 7);
/* Use multiple HW contexts */
mask = BIT(0);
/* Enable error detection */
mask |= BIT(1);
/* Set default reset state */
mask |= BIT(3);
/* Disable save/restore of performance counters across preemption */
mask |= BIT(6);
/* Enable the register init list with the spinlock */
mask |= BIT(8);
OUT_RING(ring, mask);
/* Enable multiple hardware contexts */
OUT_RING(ring, 0x00000003);
/* Enable error detection */
OUT_RING(ring, 0x20000000);
/* Operation mode mask */
OUT_RING(ring, 0x00000002);
/* *Don't* send a power up reg list for concurrent binning (TODO) */
/* Lo address */
OUT_RING(ring, lower_32_bits(a6xx_gpu->pwrup_reglist_iova));
/* Hi address */
OUT_RING(ring, upper_32_bits(a6xx_gpu->pwrup_reglist_iova));
/* BIT(31) set => read the regs from the list */
OUT_RING(ring, BIT(31));
a6xx_flush(gpu, ring);
return a6xx_idle(gpu, ring) ? 0 : -EINVAL;
}
/*
* Check that the microcode version is new enough to include several key
* security fixes. Return true if the ucode is safe.
*/
static bool a6xx_ucode_check_version(struct a6xx_gpu *a6xx_gpu,
struct drm_gem_object *obj)
{
struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
struct msm_gpu *gpu = &adreno_gpu->base;
const char *sqe_name = adreno_gpu->info->fw[ADRENO_FW_SQE];
u32 *buf = msm_gem_get_vaddr(obj);
bool ret = false;
if (IS_ERR(buf))
return false;
/* A7xx is safe! */
if (adreno_is_a7xx(adreno_gpu) || adreno_is_a702(adreno_gpu))
return true;
/*
* Targets up to a640 (a618, a630 and a640) need to check for a
* microcode version that is patched to support the whereami opcode or
* one that is new enough to include it by default.
*
* a650 tier targets don't need whereami but still need to be
* equal to or newer than 0.95 for other security fixes
*
* a660 targets have all the critical security fixes from the start
*/
if (!strcmp(sqe_name, "a630_sqe.fw")) {
/*
* 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) ||
(buf[0] & 0xfff) >= 0x190) {
a6xx_gpu->has_whereami = true;
ret = true;
goto out;
}
DRM_DEV_ERROR(&gpu->pdev->dev,
"a630 SQE ucode is too old. Have version %x need at least %x\n",
buf[0] & 0xfff, 0x190);
} else if (!strcmp(sqe_name, "a650_sqe.fw")) {
if ((buf[0] & 0xfff) >= 0x095) {
ret = true;
goto out;
}
DRM_DEV_ERROR(&gpu->pdev->dev,
"a650 SQE ucode is too old. Have version %x need at least %x\n",
buf[0] & 0xfff, 0x095);
} else if (!strcmp(sqe_name, "a660_sqe.fw")) {
ret = true;
} else {
DRM_DEV_ERROR(&gpu->pdev->dev,
"unknown GPU, add it to a6xx_ucode_check_version()!!\n");
}
out:
msm_gem_put_vaddr(obj);
return ret;
}
static int a6xx_ucode_load(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");
if (!a6xx_ucode_check_version(a6xx_gpu, a6xx_gpu->sqe_bo)) {
msm_gem_unpin_iova(a6xx_gpu->sqe_bo, gpu->vm);
drm_gem_object_put(a6xx_gpu->sqe_bo);
a6xx_gpu->sqe_bo = NULL;
return -EPERM;
}
}
/*
* 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) &&
!a6xx_gpu->shadow_bo) {
a6xx_gpu->shadow = msm_gem_kernel_new(gpu->dev,
sizeof(u32) * gpu->nr_rings,
MSM_BO_WC | MSM_BO_MAP_PRIV,
gpu->vm, &a6xx_gpu->shadow_bo,
&a6xx_gpu->shadow_iova);
if (IS_ERR(a6xx_gpu->shadow))
return PTR_ERR(a6xx_gpu->shadow);
msm_gem_object_set_name(a6xx_gpu->shadow_bo, "shadow");
}
a6xx_gpu->pwrup_reglist_ptr = msm_gem_kernel_new(gpu->dev, PAGE_SIZE,
MSM_BO_WC | MSM_BO_MAP_PRIV,
gpu->vm, &a6xx_gpu->pwrup_reglist_bo,
&a6xx_gpu->pwrup_reglist_iova);
if (IS_ERR(a6xx_gpu->pwrup_reglist_ptr))
return PTR_ERR(a6xx_gpu->pwrup_reglist_ptr);
msm_gem_object_set_name(a6xx_gpu->pwrup_reglist_bo, "pwrup_reglist");
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)
#define A7XX_INT_MASK (A6XX_RBBM_INT_0_MASK_CP_AHB_ERROR | \
A6XX_RBBM_INT_0_MASK_RBBM_ATB_ASYNCFIFO_OVERFLOW | \
A6XX_RBBM_INT_0_MASK_RBBM_GPC_ERROR | \
A6XX_RBBM_INT_0_MASK_CP_SW | \
A6XX_RBBM_INT_0_MASK_CP_HW_ERROR | \
A6XX_RBBM_INT_0_MASK_PM4CPINTERRUPT | \
A6XX_RBBM_INT_0_MASK_CP_RB_DONE_TS | \
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 | \
A6XX_RBBM_INT_0_MASK_TSBWRITEERROR | \
A6XX_RBBM_INT_0_MASK_SWFUSEVIOLATION)
#define A7XX_APRIV_MASK (A6XX_CP_APRIV_CNTL_ICACHE | \
A6XX_CP_APRIV_CNTL_RBFETCH | \
A6XX_CP_APRIV_CNTL_RBPRIVLEVEL | \
A6XX_CP_APRIV_CNTL_RBRPWB)
#define A7XX_BR_APRIVMASK (A7XX_APRIV_MASK | \
A6XX_CP_APRIV_CNTL_CDREAD | \
A6XX_CP_APRIV_CNTL_CDWRITE)
static int 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);
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
u64 gmem_range_min;
unsigned int i;
int ret;
if (!adreno_has_gmu_wrapper(adreno_gpu)) {
/* Make sure the GMU keeps the GPU on while we set it up */
ret = a6xx_gmu_set_oob(&a6xx_gpu->gmu, GMU_OOB_GPU_SET);
if (ret)
return ret;
}
/* Clear GBIF halt in case GX domain was not collapsed */
if (adreno_is_a619_holi(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_GBIF_HALT, 0);
gpu_read(gpu, REG_A6XX_GBIF_HALT);
gpu_write(gpu, REG_A6XX_RBBM_GPR0_CNTL, 0);
gpu_read(gpu, REG_A6XX_RBBM_GPR0_CNTL);
} else if (a6xx_has_gbif(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_GBIF_HALT, 0);
gpu_read(gpu, REG_A6XX_GBIF_HALT);
gpu_write(gpu, REG_A6XX_RBBM_GBIF_HALT, 0);
gpu_read(gpu, REG_A6XX_RBBM_GBIF_HALT);
}
gpu_write(gpu, REG_A6XX_RBBM_SECVID_TSB_CNTL, 0);
if (adreno_is_a619_holi(adreno_gpu))
a6xx_sptprac_enable(gmu);
/*
* 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, 0x00000000);
gpu_write(gpu, REG_A6XX_RBBM_SECVID_TSB_TRUSTED_SIZE, 0x00000000);
if (!adreno_is_a7xx(adreno_gpu)) {
/* 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_a610_family(adreno_gpu) ||
adreno_is_a640_family(adreno_gpu) ||
adreno_is_a650_family(adreno_gpu) ||
adreno_is_a7xx(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_RBBM_GBIF_CLIENT_QOS_CNTL,
adreno_is_a7xx(adreno_gpu) ? 0x2120212 : 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);
if (adreno_is_a7xx(adreno_gpu))
gpu_write(gpu, REG_A6XX_UCHE_GBIF_GX_CONFIG, 0x10240e0);
/* 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 */
if (adreno_is_a7xx(adreno_gpu)) {
gpu_write64(gpu, REG_A6XX_UCHE_TRAP_BASE, adreno_gpu->uche_trap_base);
gpu_write64(gpu, REG_A6XX_UCHE_WRITE_THRU_BASE, adreno_gpu->uche_trap_base);
} else {
gpu_write64(gpu, REG_A6XX_UCHE_WRITE_RANGE_MAX, adreno_gpu->uche_trap_base + 0xfc0);
gpu_write64(gpu, REG_A6XX_UCHE_TRAP_BASE, adreno_gpu->uche_trap_base);
gpu_write64(gpu, REG_A6XX_UCHE_WRITE_THRU_BASE, adreno_gpu->uche_trap_base);
}
if (!(adreno_is_a650_family(adreno_gpu) ||
adreno_is_a702(adreno_gpu) ||
adreno_is_a730(adreno_gpu))) {
gmem_range_min = adreno_is_a740_family(adreno_gpu) ? SZ_16M : SZ_1M;
/* Set the GMEM VA range [0x100000:0x100000 + gpu->gmem - 1] */
gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MIN, gmem_range_min);
gpu_write64(gpu, REG_A6XX_UCHE_GMEM_RANGE_MAX,
gmem_range_min + adreno_gpu->info->gmem - 1);
}
if (adreno_is_a7xx(adreno_gpu))
gpu_write(gpu, REG_A6XX_UCHE_CACHE_WAYS, BIT(23));
else {
gpu_write(gpu, REG_A6XX_UCHE_FILTER_CNTL, 0x804);
gpu_write(gpu, REG_A6XX_UCHE_CACHE_WAYS, 0x4);
}
if (adreno_is_a640_family(adreno_gpu) || adreno_is_a650_family(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x02000140);
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x8040362c);
} else if (adreno_is_a610_family(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x00800060);
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x40201b16);
} else if (!adreno_is_a7xx(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_2, 0x010000c0);
gpu_write(gpu, REG_A6XX_CP_ROQ_THRESHOLDS_1, 0x8040362c);
}
if (adreno_is_a660_family(adreno_gpu))
gpu_write(gpu, REG_A6XX_CP_LPAC_PROG_FIFO_SIZE, 0x00000020);
/* Setting the mem pool size */
if (adreno_is_a610(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 48);
gpu_write(gpu, REG_A6XX_CP_MEM_POOL_DBG_ADDR, 47);
} else if (adreno_is_a702(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 64);
gpu_write(gpu, REG_A6XX_CP_MEM_POOL_DBG_ADDR, 63);
} else if (!adreno_is_a7xx(adreno_gpu))
gpu_write(gpu, REG_A6XX_CP_MEM_POOL_SIZE, 128);
/* Set the default primFifo threshold values */
if (adreno_gpu->info->a6xx->prim_fifo_threshold)
gpu_write(gpu, REG_A6XX_PC_DBG_ECO_CNTL,
adreno_gpu->info->a6xx->prim_fifo_threshold);
/* 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);
if (adreno_is_a7xx(adreno_gpu)) {
/* Turn on the IFPC counter (countable 4 on XOCLK4) */
gmu_write(&a6xx_gpu->gmu, REG_A6XX_GMU_CX_GMU_POWER_COUNTER_SELECT_1,
FIELD_PREP(GENMASK(7, 0), 0x4));
}
/* 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 */
if (adreno_is_a730(adreno_gpu) ||
adreno_is_a740_family(adreno_gpu))
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0xcfffff);
else if (adreno_is_a690(adreno_gpu))
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x4fffff);
else if (adreno_is_a619(adreno_gpu))
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x3fffff);
else if (adreno_is_a610(adreno_gpu) || adreno_is_a702(adreno_gpu))
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x3ffff);
else
gpu_write(gpu, REG_A6XX_RBBM_INTERFACE_HANG_INT_CNTL, (1 << 30) | 0x1fffff);
gpu_write(gpu, REG_A6XX_UCHE_CLIENT_PF, BIT(7) | 0x1);
/* Set weights for bicubic filtering */
if (adreno_is_a650_family(adreno_gpu) || adreno_is_x185(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);
}
/* Set up the CX GMU counter 0 to count busy ticks */
gmu_write(gmu, REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_MASK, 0xff000000);
/* Enable the power counter */
gmu_rmw(gmu, REG_A6XX_GMU_CX_GMU_POWER_COUNTER_SELECT_0, 0xff, BIT(5));
gmu_write(gmu, REG_A6XX_GMU_CX_GMU_POWER_COUNTER_ENABLE, 1);
/* Protect registers from the CP */
a6xx_set_cp_protect(gpu);
if (adreno_is_a660_family(adreno_gpu)) {
if (adreno_is_a690(adreno_gpu))
gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, 0x00028801);
else
gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, 0x1);
gpu_write(gpu, REG_A6XX_RBBM_GBIF_CLIENT_QOS_CNTL, 0x0);
} else if (adreno_is_a702(adreno_gpu)) {
/* Something to do with the HLSQ cluster */
gpu_write(gpu, REG_A6XX_CP_CHICKEN_DBG, BIT(24));
}
if (adreno_is_a690(adreno_gpu))
gpu_write(gpu, REG_A6XX_UCHE_CMDQ_CONFIG, 0x90);
/* Set dualQ + disable afull for A660 GPU */
else if (adreno_is_a660(adreno_gpu) || adreno_is_a663(adreno_gpu))
gpu_write(gpu, REG_A6XX_UCHE_CMDQ_CONFIG, 0x66906);
else if (adreno_is_a7xx(adreno_gpu))
gpu_write(gpu, REG_A6XX_UCHE_CMDQ_CONFIG,
FIELD_PREP(GENMASK(19, 16), 6) |
FIELD_PREP(GENMASK(15, 12), 6) |
FIELD_PREP(GENMASK(11, 8), 9) |
BIT(3) | BIT(2) |
FIELD_PREP(GENMASK(1, 0), 2));
/* Enable expanded apriv for targets that support it */
if (gpu->hw_apriv) {
if (adreno_is_a7xx(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_CP_APRIV_CNTL,
A7XX_BR_APRIVMASK);
gpu_write(gpu, REG_A7XX_CP_BV_APRIV_CNTL,
A7XX_APRIV_MASK);
gpu_write(gpu, REG_A7XX_CP_LPAC_APRIV_CNTL,
A7XX_APRIV_MASK);
} else
gpu_write(gpu, REG_A6XX_CP_APRIV_CNTL,
BIT(6) | BIT(5) | BIT(3) | BIT(2) | BIT(1));
}
if (adreno_is_a750(adreno_gpu)) {
/* Disable ubwc merged UFC request feature */
gpu_rmw(gpu, REG_A6XX_RB_CMP_DBG_ECO_CNTL, BIT(19), BIT(19));
/* Enable TP flaghint and other performance settings */
gpu_write(gpu, REG_A6XX_TPL1_DBG_ECO_CNTL1, 0xc0700);
} else if (adreno_is_a7xx(adreno_gpu)) {
/* Disable non-ubwc read reqs from passing write reqs */
gpu_rmw(gpu, REG_A6XX_RB_CMP_DBG_ECO_CNTL, BIT(11), BIT(11));
}
/* Enable interrupts */
gpu_write(gpu, REG_A6XX_RBBM_INT_0_MASK,
adreno_is_a7xx(adreno_gpu) ? A7XX_INT_MASK : A6XX_INT_MASK);
ret = adreno_hw_init(gpu);
if (ret)
goto out;
gpu_write64(gpu, REG_A6XX_CP_SQE_INSTR_BASE, a6xx_gpu->sqe_iova);
/* Set the ringbuffer address */
gpu_write64(gpu, REG_A6XX_CP_RB_BASE, 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);
/* Configure the RPTR shadow if needed: */
if (a6xx_gpu->shadow_bo) {
gpu_write64(gpu, REG_A6XX_CP_RB_RPTR_ADDR,
shadowptr(a6xx_gpu, gpu->rb[0]));
for (unsigned int i = 0; i < gpu->nr_rings; i++)
a6xx_gpu->shadow[i] = 0;
}
/* ..which means "always" on A7xx, also for BV shadow */
if (adreno_is_a7xx(adreno_gpu)) {
gpu_write64(gpu, REG_A7XX_CP_BV_RB_RPTR_ADDR,
rbmemptr(gpu->rb[0], bv_rptr));
}
a6xx_preempt_hw_init(gpu);
/* Always come up on rb 0 */
a6xx_gpu->cur_ring = gpu->rb[0];
for (i = 0; i < gpu->nr_rings; i++)
gpu->rb[i]->cur_ctx_seqno = 0;
/* Enable the SQE_to start the CP engine */
gpu_write(gpu, REG_A6XX_CP_SQE_CNTL, 1);
if (adreno_is_a7xx(adreno_gpu) && !a6xx_gpu->pwrup_reglist_emitted) {
a7xx_patch_pwrup_reglist(gpu);
a6xx_gpu->pwrup_reglist_emitted = true;
}
ret = adreno_is_a7xx(adreno_gpu) ? a7xx_cp_init(gpu) : 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:
if (adreno_has_gmu_wrapper(adreno_gpu))
return ret;
/* Last step - yield the ringbuffer */
a7xx_preempt_start(gpu);
/*
* 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 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;
mutex_lock(&a6xx_gpu->gmu.lock);
ret = hw_init(gpu);
mutex_unlock(&a6xx_gpu->gmu.lock);
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);
}
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);
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
int i, active_submits;
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);
/*
* To handle recovery specific sequences during the rpm suspend we are
* about to trigger
*/
a6xx_gpu->hung = true;
/* Halt SQE first */
gpu_write(gpu, REG_A6XX_CP_SQE_CNTL, 3);
pm_runtime_dont_use_autosuspend(&gpu->pdev->dev);
/* active_submit won't change until we make a submission */
mutex_lock(&gpu->active_lock);
active_submits = gpu->active_submits;
/*
* Temporarily clear active_submits count to silence a WARN() in the
* runtime suspend cb
*/
gpu->active_submits = 0;
if (adreno_has_gmu_wrapper(adreno_gpu)) {
/* Drain the outstanding traffic on memory buses */
a6xx_bus_clear_pending_transactions(adreno_gpu, true);
/* Reset the GPU to a clean state */
a6xx_gpu_sw_reset(gpu, true);
a6xx_gpu_sw_reset(gpu, false);
}
reinit_completion(&gmu->pd_gate);
dev_pm_genpd_add_notifier(gmu->cxpd, &gmu->pd_nb);
dev_pm_genpd_synced_poweroff(gmu->cxpd);
/* Drop the rpm refcount from active submits */
if (active_submits)
pm_runtime_put(&gpu->pdev->dev);
/* And the final one from recover worker */
pm_runtime_put_sync(&gpu->pdev->dev);
if (!wait_for_completion_timeout(&gmu->pd_gate, msecs_to_jiffies(1000)))
DRM_DEV_ERROR(&gpu->pdev->dev, "cx gdsc didn't collapse\n");
dev_pm_genpd_remove_notifier(gmu->cxpd);
pm_runtime_use_autosuspend(&gpu->pdev->dev);
if (active_submits)
pm_runtime_get(&gpu->pdev->dev);
pm_runtime_get_sync(&gpu->pdev->dev);
gpu->active_submits = active_submits;
mutex_unlock(&gpu->active_lock);
msm_gpu_hw_init(gpu);
a6xx_gpu->hung = false;
}
static const char *a6xx_uche_fault_block(struct msm_gpu *gpu, u32 mid)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
static const char *uche_clients[7] = {
"VFD", "SP", "VSC", "VPC", "HLSQ", "PC", "LRZ",
};
u32 val;
if (adreno_is_a7xx(adreno_gpu)) {
if (mid != 1 && mid != 2 && mid != 3 && mid != 8)
return "UNKNOWN";
} else {
if (mid < 1 || mid > 3)
return "UNKNOWN";
}
/*
* The source of the data depends on the mid ID read from FSYNR1.
* and the client ID read from the UCHE block
*/
val = gpu_read(gpu, REG_A6XX_UCHE_CLIENT_PF);
if (adreno_is_a7xx(adreno_gpu)) {
/* Bit 3 for mid=3 indicates BR or BV */
static const char *uche_clients_a7xx[16] = {
"BR_VFD", "BR_SP", "BR_VSC", "BR_VPC",
"BR_HLSQ", "BR_PC", "BR_LRZ", "BR_TP",
"BV_VFD", "BV_SP", "BV_VSC", "BV_VPC",
"BV_HLSQ", "BV_PC", "BV_LRZ", "BV_TP",
};
/* LPAC has the same clients as BR and BV, but because it is
* compute-only some of them do not exist and there are holes
* in the array.
*/
static const char *uche_clients_lpac_a7xx[8] = {
"-", "LPAC_SP", "-", "-",
"LPAC_HLSQ", "-", "-", "LPAC_TP",
};
val &= GENMASK(6, 0);
/* mid=3 refers to BR or BV */
if (mid == 3) {
if (val < ARRAY_SIZE(uche_clients_a7xx))
return uche_clients_a7xx[val];
else
return "UCHE";
}
/* mid=8 refers to LPAC */
if (mid == 8) {
if (val < ARRAY_SIZE(uche_clients_lpac_a7xx))
return uche_clients_lpac_a7xx[val];
else
return "UCHE_LPAC";
}
/* mid=2 is a catchall for everything else in LPAC */
if (mid == 2)
return "UCHE_LPAC";
/* mid=1 is a catchall for everything else in BR/BV */
return "UCHE";
} else if (adreno_is_a660_family(adreno_gpu)) {
static const char *uche_clients_a660[8] = {
"VFD", "SP", "VSC", "VPC", "HLSQ", "PC", "LRZ", "TP",
};
static const char *uche_clients_a660_not[8] = {
"not VFD", "not SP", "not VSC", "not VPC",
"not HLSQ", "not PC", "not LRZ", "not TP",
};
val &= GENMASK(6, 0);
if (mid == 3 && val < ARRAY_SIZE(uche_clients_a660))
return uche_clients_a660[val];
if (mid == 1 && val < ARRAY_SIZE(uche_clients_a660_not))
return uche_clients_a660_not[val];
return "UCHE";
} else {
/* mid = 3 is most precise and refers to only one block per client */
if (mid == 3)
return uche_clients[val & 7];
/* For mid=2 the source is TP or VFD except when the client id is 0 */
if (mid == 2)
return ((val & 7) == 0) ? "TP" : "TP|VFD";
/* For mid=1 just return "UCHE" as a catchall for everything else */
return "UCHE";
}
}
static const char *a6xx_fault_block(struct msm_gpu *gpu, u32 id)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
if (id == 0)
return "CP";
else if (id == 4)
return "CCU";
else if (id == 6)
return "CDP Prefetch";
else if (id == 7)
return "GMU";
else if (id == 5 && adreno_is_a7xx(adreno_gpu))
return "Flag cache";
return a6xx_uche_fault_block(gpu, id);
}
static int a6xx_fault_handler(void *arg, unsigned long iova, int flags, void *data)
{
struct msm_gpu *gpu = arg;
struct adreno_smmu_fault_info *info = data;
const char *block = "unknown";
u32 scratch[] = {
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)),
};
if (info)
block = a6xx_fault_block(gpu, info->fsynr1 & 0xff);
return adreno_fault_handler(gpu, iova, flags, info, block, scratch);
}
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 && !adreno_is_a7xx(to_adreno_gpu(gpu)))
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 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_A6XX_RBBM_STATUS3) & A6XX_RBBM_STATUS3_SMMU_STALLED_ON_FAULT)
return;
/*
* Force the GPU to stay on until after we finish
* collecting information
*/
if (!adreno_has_gmu_wrapper(adreno_gpu))
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->fctx->last_fence : 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),
gpu_read(gpu, REG_A6XX_CP_IB1_REM_SIZE),
gpu_read64(gpu, REG_A6XX_CP_IB2_BASE),
gpu_read(gpu, REG_A6XX_CP_IB2_REM_SIZE));
/* Turn off the hangcheck timer to keep it from bothering us */
timer_delete(&gpu->hangcheck_timer);
kthread_queue_work(gpu->worker, &gpu->recover_work);
}
static void a7xx_sw_fuse_violation_irq(struct msm_gpu *gpu)
{
u32 status;
status = gpu_read(gpu, REG_A7XX_RBBM_SW_FUSE_INT_STATUS);
gpu_write(gpu, REG_A7XX_RBBM_SW_FUSE_INT_MASK, 0);
dev_err_ratelimited(&gpu->pdev->dev, "SW fuse violation status=%8.8x\n", status);
/*
* Ignore FASTBLEND violations, because the HW will silently fall back
* to legacy blending.
*/
if (status & (A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING |
A7XX_CX_MISC_SW_FUSE_VALUE_LPAC)) {
timer_delete(&gpu->hangcheck_timer);
kthread_queue_work(gpu->worker, &gpu->recover_work);
}
}
static irqreturn_t a6xx_irq(struct msm_gpu *gpu)
{
struct msm_drm_private *priv = gpu->dev->dev_private;
u32 status = gpu_read(gpu, REG_A6XX_RBBM_INT_0_STATUS);
gpu_write(gpu, REG_A6XX_RBBM_INT_CLEAR_CMD, status);
if (priv->disable_err_irq)
status &= A6XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS;
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_SWFUSEVIOLATION)
a7xx_sw_fuse_violation_irq(gpu);
if (status & A6XX_RBBM_INT_0_MASK_CP_CACHE_FLUSH_TS) {
msm_gpu_retire(gpu);
a6xx_preempt_trigger(gpu);
}
if (status & A6XX_RBBM_INT_0_MASK_CP_SW)
a6xx_preempt_irq(gpu);
return IRQ_HANDLED;
}
static void a6xx_llc_deactivate(struct a6xx_gpu *a6xx_gpu)
{
llcc_slice_deactivate(a6xx_gpu->llc_slice);
llcc_slice_deactivate(a6xx_gpu->htw_llc_slice);
}
static void a6xx_llc_activate(struct a6xx_gpu *a6xx_gpu)
{
struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
struct msm_gpu *gpu = &adreno_gpu->base;
u32 cntl1_regval = 0;
if (IS_ERR(a6xx_gpu->llc_mmio))
return;
if (!llcc_slice_activate(a6xx_gpu->llc_slice)) {
u32 gpu_scid = llcc_get_slice_id(a6xx_gpu->llc_slice);
gpu_scid &= 0x1f;
cntl1_regval = (gpu_scid << 0) | (gpu_scid << 5) | (gpu_scid << 10) |
(gpu_scid << 15) | (gpu_scid << 20);
/* On A660, the SCID programming for UCHE traffic is done in
* A6XX_GBIF_SCACHE_CNTL0[14:10]
*/
if (adreno_is_a660_family(adreno_gpu))
gpu_rmw(gpu, REG_A6XX_GBIF_SCACHE_CNTL0, (0x1f << 10) |
(1 << 8), (gpu_scid << 10) | (1 << 8));
}
/*
* For targets with a MMU500, activate the slice but don't program the
* register. The XBL will take care of that.
*/
if (!llcc_slice_activate(a6xx_gpu->htw_llc_slice)) {
if (!a6xx_gpu->have_mmu500) {
u32 gpuhtw_scid = llcc_get_slice_id(a6xx_gpu->htw_llc_slice);
gpuhtw_scid &= 0x1f;
cntl1_regval |= FIELD_PREP(GENMASK(29, 25), gpuhtw_scid);
}
}
if (!cntl1_regval)
return;
/*
* Program the slice IDs for the various GPU blocks and GPU MMU
* pagetables
*/
if (!a6xx_gpu->have_mmu500) {
a6xx_llc_write(a6xx_gpu,
REG_A6XX_CX_MISC_SYSTEM_CACHE_CNTL_1, cntl1_regval);
/*
* Program cacheability overrides to not allocate cache
* lines on a write miss
*/
a6xx_llc_rmw(a6xx_gpu,
REG_A6XX_CX_MISC_SYSTEM_CACHE_CNTL_0, 0xF, 0x03);
return;
}
gpu_rmw(gpu, REG_A6XX_GBIF_SCACHE_CNTL1, GENMASK(24, 0), cntl1_regval);
}
static void a7xx_llc_activate(struct a6xx_gpu *a6xx_gpu)
{
struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
struct msm_gpu *gpu = &adreno_gpu->base;
if (IS_ERR(a6xx_gpu->llc_mmio))
return;
if (!llcc_slice_activate(a6xx_gpu->llc_slice)) {
u32 gpu_scid = llcc_get_slice_id(a6xx_gpu->llc_slice);
gpu_scid &= GENMASK(4, 0);
gpu_write(gpu, REG_A6XX_GBIF_SCACHE_CNTL1,
FIELD_PREP(GENMASK(29, 25), gpu_scid) |
FIELD_PREP(GENMASK(24, 20), gpu_scid) |
FIELD_PREP(GENMASK(19, 15), gpu_scid) |
FIELD_PREP(GENMASK(14, 10), gpu_scid) |
FIELD_PREP(GENMASK(9, 5), gpu_scid) |
FIELD_PREP(GENMASK(4, 0), gpu_scid));
gpu_write(gpu, REG_A6XX_GBIF_SCACHE_CNTL0,
FIELD_PREP(GENMASK(14, 10), gpu_scid) |
BIT(8));
}
llcc_slice_activate(a6xx_gpu->htw_llc_slice);
}
static void a6xx_llc_slices_destroy(struct a6xx_gpu *a6xx_gpu)
{
/* No LLCC on non-RPMh (and by extension, non-GMU) SoCs */
if (adreno_has_gmu_wrapper(&a6xx_gpu->base))
return;
llcc_slice_putd(a6xx_gpu->llc_slice);
llcc_slice_putd(a6xx_gpu->htw_llc_slice);
}
static void a6xx_llc_slices_init(struct platform_device *pdev,
struct a6xx_gpu *a6xx_gpu, bool is_a7xx)
{
struct device_node *phandle;
/* No LLCC on non-RPMh (and by extension, non-GMU) SoCs */
if (adreno_has_gmu_wrapper(&a6xx_gpu->base))
return;
/*
* There is a different programming path for A6xx targets with an
* mmu500 attached, so detect if that is the case
*/
phandle = of_parse_phandle(pdev->dev.of_node, "iommus", 0);
a6xx_gpu->have_mmu500 = (phandle &&
of_device_is_compatible(phandle, "arm,mmu-500"));
of_node_put(phandle);
if (is_a7xx || !a6xx_gpu->have_mmu500)
a6xx_gpu->llc_mmio = msm_ioremap(pdev, "cx_mem");
else
a6xx_gpu->llc_mmio = NULL;
a6xx_gpu->llc_slice = llcc_slice_getd(LLCC_GPU);
a6xx_gpu->htw_llc_slice = llcc_slice_getd(LLCC_GPUHTW);
if (IS_ERR_OR_NULL(a6xx_gpu->llc_slice) && IS_ERR_OR_NULL(a6xx_gpu->htw_llc_slice))
a6xx_gpu->llc_mmio = ERR_PTR(-EINVAL);
}
static int a7xx_cx_mem_init(struct a6xx_gpu *a6xx_gpu)
{
struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
struct msm_gpu *gpu = &adreno_gpu->base;
u32 fuse_val;
int ret;
if (adreno_is_a750(adreno_gpu)) {
/*
* Assume that if qcom scm isn't available, that whatever
* replacement allows writing the fuse register ourselves.
* Users of alternative firmware need to make sure this
* register is writeable or indicate that it's not somehow.
* Print a warning because if you mess this up you're about to
* crash horribly.
*/
if (!qcom_scm_is_available()) {
dev_warn_once(gpu->dev->dev,
"SCM is not available, poking fuse register\n");
a6xx_llc_write(a6xx_gpu, REG_A7XX_CX_MISC_SW_FUSE_VALUE,
A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING |
A7XX_CX_MISC_SW_FUSE_VALUE_FASTBLEND |
A7XX_CX_MISC_SW_FUSE_VALUE_LPAC);
adreno_gpu->has_ray_tracing = true;
return 0;
}
ret = qcom_scm_gpu_init_regs(QCOM_SCM_GPU_ALWAYS_EN_REQ |
QCOM_SCM_GPU_TSENSE_EN_REQ);
if (ret)
return ret;
/*
* On a750 raytracing may be disabled by the firmware, find out
* whether that's the case. The scm call above sets the fuse
* register.
*/
fuse_val = a6xx_llc_read(a6xx_gpu,
REG_A7XX_CX_MISC_SW_FUSE_VALUE);
adreno_gpu->has_ray_tracing =
!!(fuse_val & A7XX_CX_MISC_SW_FUSE_VALUE_RAYTRACING);
} else if (adreno_is_a740(adreno_gpu)) {
/* Raytracing is always enabled on a740 */
adreno_gpu->has_ray_tracing = true;
}
return 0;
}
#define GBIF_CLIENT_HALT_MASK BIT(0)
#define GBIF_ARB_HALT_MASK BIT(1)
#define VBIF_XIN_HALT_CTRL0_MASK GENMASK(3, 0)
#define VBIF_RESET_ACK_MASK 0xF0
#define GPR0_GBIF_HALT_REQUEST 0x1E0
void a6xx_bus_clear_pending_transactions(struct adreno_gpu *adreno_gpu, bool gx_off)
{
struct msm_gpu *gpu = &adreno_gpu->base;
if (adreno_is_a619_holi(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_RBBM_GPR0_CNTL, GPR0_GBIF_HALT_REQUEST);
spin_until((gpu_read(gpu, REG_A6XX_RBBM_VBIF_GX_RESET_STATUS) &
(VBIF_RESET_ACK_MASK)) == VBIF_RESET_ACK_MASK);
} else if (!a6xx_has_gbif(adreno_gpu)) {
gpu_write(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL0, VBIF_XIN_HALT_CTRL0_MASK);
spin_until((gpu_read(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL1) &
(VBIF_XIN_HALT_CTRL0_MASK)) == VBIF_XIN_HALT_CTRL0_MASK);
gpu_write(gpu, REG_A6XX_VBIF_XIN_HALT_CTRL0, 0);
return;
}
if (gx_off) {
/* Halt the gx side of GBIF */
gpu_write(gpu, REG_A6XX_RBBM_GBIF_HALT, 1);
spin_until(gpu_read(gpu, REG_A6XX_RBBM_GBIF_HALT_ACK) & 1);
}
/* Halt new client requests on GBIF */
gpu_write(gpu, REG_A6XX_GBIF_HALT, GBIF_CLIENT_HALT_MASK);
spin_until((gpu_read(gpu, REG_A6XX_GBIF_HALT_ACK) &
(GBIF_CLIENT_HALT_MASK)) == GBIF_CLIENT_HALT_MASK);
/* Halt all AXI requests on GBIF */
gpu_write(gpu, REG_A6XX_GBIF_HALT, GBIF_ARB_HALT_MASK);
spin_until((gpu_read(gpu, REG_A6XX_GBIF_HALT_ACK) &
(GBIF_ARB_HALT_MASK)) == GBIF_ARB_HALT_MASK);
/* The GBIF halt needs to be explicitly cleared */
gpu_write(gpu, REG_A6XX_GBIF_HALT, 0x0);
}
void a6xx_gpu_sw_reset(struct msm_gpu *gpu, bool assert)
{
/* 11nm chips (e.g. ones with A610) have hw issues with the reset line! */
if (adreno_is_a610(to_adreno_gpu(gpu)))
return;
gpu_write(gpu, REG_A6XX_RBBM_SW_RESET_CMD, assert);
/* Perform a bogus read and add a brief delay to ensure ordering. */
gpu_read(gpu, REG_A6XX_RBBM_SW_RESET_CMD);
udelay(1);
/* The reset line needs to be asserted for at least 100 us */
if (assert)
udelay(100);
}
static int a6xx_gmu_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);
mutex_lock(&a6xx_gpu->gmu.lock);
ret = a6xx_gmu_resume(a6xx_gpu);
mutex_unlock(&a6xx_gpu->gmu.lock);
if (ret)
return ret;
msm_devfreq_resume(gpu);
adreno_is_a7xx(adreno_gpu) ? a7xx_llc_activate(a6xx_gpu) : a6xx_llc_activate(a6xx_gpu);
return ret;
}
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);
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
unsigned long freq = gpu->fast_rate;
struct dev_pm_opp *opp;
int ret;
gpu->needs_hw_init = true;
trace_msm_gpu_resume(0);
mutex_lock(&a6xx_gpu->gmu.lock);
opp = dev_pm_opp_find_freq_ceil(&gpu->pdev->dev, &freq);
if (IS_ERR(opp)) {
ret = PTR_ERR(opp);
goto err_set_opp;
}
dev_pm_opp_put(opp);
/* Set the core clock and bus bw, having VDD scaling in mind */
dev_pm_opp_set_opp(&gpu->pdev->dev, opp);
pm_runtime_resume_and_get(gmu->dev);
pm_runtime_resume_and_get(gmu->gxpd);
ret = clk_bulk_prepare_enable(gpu->nr_clocks, gpu->grp_clks);
if (ret)
goto err_bulk_clk;
if (adreno_is_a619_holi(adreno_gpu))
a6xx_sptprac_enable(gmu);
/* If anything goes south, tear the GPU down piece by piece.. */
if (ret) {
err_bulk_clk:
pm_runtime_put(gmu->gxpd);
pm_runtime_put(gmu->dev);
dev_pm_opp_set_opp(&gpu->pdev->dev, NULL);
}
err_set_opp:
mutex_unlock(&a6xx_gpu->gmu.lock);
if (!ret)
msm_devfreq_resume(gpu);
return ret;
}
static int a6xx_gmu_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);
a6xx_llc_deactivate(a6xx_gpu);
msm_devfreq_suspend(gpu);
mutex_lock(&a6xx_gpu->gmu.lock);
ret = a6xx_gmu_stop(a6xx_gpu);
mutex_unlock(&a6xx_gpu->gmu.lock);
if (ret)
return ret;
if (a6xx_gpu->shadow_bo)
for (i = 0; i < gpu->nr_rings; i++)
a6xx_gpu->shadow[i] = 0;
gpu->suspend_count++;
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);
struct a6xx_gmu *gmu = &a6xx_gpu->gmu;
int i;
trace_msm_gpu_suspend(0);
msm_devfreq_suspend(gpu);
mutex_lock(&a6xx_gpu->gmu.lock);
/* Drain the outstanding traffic on memory buses */
a6xx_bus_clear_pending_transactions(adreno_gpu, true);
if (adreno_is_a619_holi(adreno_gpu))
a6xx_sptprac_disable(gmu);
clk_bulk_disable_unprepare(gpu->nr_clocks, gpu->grp_clks);
pm_runtime_put_sync(gmu->gxpd);
dev_pm_opp_set_opp(&gpu->pdev->dev, NULL);
pm_runtime_put_sync(gmu->dev);
mutex_unlock(&a6xx_gpu->gmu.lock);
if (a6xx_gpu->shadow_bo)
for (i = 0; i < gpu->nr_rings; i++)
a6xx_gpu->shadow[i] = 0;
gpu->suspend_count++;
return 0;
}
static int a6xx_gmu_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);
mutex_lock(&a6xx_gpu->gmu.lock);
/* 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);
a6xx_gmu_clear_oob(&a6xx_gpu->gmu, GMU_OOB_PERFCOUNTER_SET);
mutex_unlock(&a6xx_gpu->gmu.lock);
return 0;
}
static int a6xx_get_timestamp(struct msm_gpu *gpu, uint64_t *value)
{
*value = gpu_read64(gpu, REG_A6XX_CP_ALWAYS_ON_COUNTER);
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->vm);
drm_gem_object_put(a6xx_gpu->sqe_bo);
}
if (a6xx_gpu->shadow_bo) {
msm_gem_unpin_iova(a6xx_gpu->shadow_bo, gpu->vm);
drm_gem_object_put(a6xx_gpu->shadow_bo);
}
a6xx_llc_slices_destroy(a6xx_gpu);
a6xx_gmu_remove(a6xx_gpu);
adreno_gpu_cleanup(adreno_gpu);
kfree(a6xx_gpu);
}
static u64 a6xx_gpu_busy(struct msm_gpu *gpu, unsigned long *out_sample_rate)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
u64 busy_cycles;
/* 19.2MHz */
*out_sample_rate = 19200000;
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);
return busy_cycles;
}
static void a6xx_gpu_set_freq(struct msm_gpu *gpu, struct dev_pm_opp *opp,
bool suspended)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
mutex_lock(&a6xx_gpu->gmu.lock);
a6xx_gmu_set_freq(gpu, opp, suspended);
mutex_unlock(&a6xx_gpu->gmu.lock);
}
static struct drm_gpuvm *
a6xx_create_vm(struct msm_gpu *gpu, struct platform_device *pdev)
{
struct adreno_gpu *adreno_gpu = to_adreno_gpu(gpu);
struct a6xx_gpu *a6xx_gpu = to_a6xx_gpu(adreno_gpu);
unsigned long quirks = 0;
/*
* This allows GPU to set the bus attributes required to use system
* cache on behalf of the iommu page table walker.
*/
if (!IS_ERR_OR_NULL(a6xx_gpu->htw_llc_slice) &&
!device_iommu_capable(&pdev->dev, IOMMU_CAP_CACHE_COHERENCY))
quirks |= IO_PGTABLE_QUIRK_ARM_OUTER_WBWA;
return adreno_iommu_create_vm(gpu, pdev, quirks);
}
static struct drm_gpuvm *
a6xx_create_private_vm(struct msm_gpu *gpu, bool kernel_managed)
{
struct msm_mmu *mmu;
mmu = msm_iommu_pagetable_create(to_msm_vm(gpu->vm)->mmu, kernel_managed);
if (IS_ERR(mmu))
return ERR_CAST(mmu);
return msm_gem_vm_create(gpu->dev, mmu, "gpu", ADRENO_VM_START,
adreno_private_vm_size(gpu), kernel_managed);
}
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 bool a6xx_progress(struct msm_gpu *gpu, struct msm_ringbuffer *ring)
{
struct msm_cp_state cp_state = {
.ib1_base = gpu_read64(gpu, REG_A6XX_CP_IB1_BASE),
.ib2_base = gpu_read64(gpu, REG_A6XX_CP_IB2_BASE),
.ib1_rem = gpu_read(gpu, REG_A6XX_CP_IB1_REM_SIZE),
.ib2_rem = gpu_read(gpu, REG_A6XX_CP_IB2_REM_SIZE),
};
bool progress;
/*
* Adjust the remaining data to account for what has already been
* fetched from memory, but not yet consumed by the SQE.
*
* This is not *technically* correct, the amount buffered could
* exceed the IB size due to hw prefetching ahead, but:
*
* (1) We aren't trying to find the exact position, just whether
* progress has been made
* (2) The CP_REG_TO_MEM at the end of a submit should be enough
* to prevent prefetching into an unrelated submit. (And
* either way, at some point the ROQ will be full.)
*/
cp_state.ib1_rem += gpu_read(gpu, REG_A6XX_CP_ROQ_AVAIL_IB1) >> 16;
cp_state.ib2_rem += gpu_read(gpu, REG_A6XX_CP_ROQ_AVAIL_IB2) >> 16;
progress = !!memcmp(&cp_state, &ring->last_cp_state, sizeof(cp_state));
ring->last_cp_state = cp_state;
return progress;
}
static u32 fuse_to_supp_hw(const struct adreno_info *info, u32 fuse)
{
if (!info->speedbins)
return UINT_MAX;
for (int i = 0; info->speedbins[i].fuse != SHRT_MAX; i++)
if (info->speedbins[i].fuse == fuse)
return BIT(info->speedbins[i].speedbin);
return UINT_MAX;
}
static int a6xx_set_supported_hw(struct device *dev, const struct adreno_info *info)
{
u32 supp_hw;
u32 speedbin;
int ret;
ret = adreno_read_speedbin(dev, &speedbin);
/*
* -ENOENT means that the platform doesn't support speedbin which is
* fine
*/
if (ret == -ENOENT) {
return 0;
} else if (ret) {
dev_err_probe(dev, ret,
"failed to read speed-bin. Some OPPs may not be supported by hardware\n");
return ret;
}
supp_hw = fuse_to_supp_hw(info, speedbin);
if (supp_hw == UINT_MAX) {
DRM_DEV_ERROR(dev,
"missing support for speed-bin: %u. Some OPPs may not be supported by hardware\n",
speedbin);
supp_hw = BIT(0); /* Default */
}
ret = devm_pm_opp_set_supported_hw(dev, &supp_hw, 1);
if (ret)
return ret;
return 0;
}
static const struct adreno_gpu_funcs funcs = {
.base = {
.get_param = adreno_get_param,
.set_param = adreno_set_param,
.hw_init = a6xx_hw_init,
.ucode_load = a6xx_ucode_load,
.pm_suspend = a6xx_gmu_pm_suspend,
.pm_resume = a6xx_gmu_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_gpu_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_vm = a6xx_create_vm,
.create_private_vm = a6xx_create_private_vm,
.get_rptr = a6xx_get_rptr,
.progress = a6xx_progress,
},
.get_timestamp = a6xx_gmu_get_timestamp,
};
static const struct adreno_gpu_funcs funcs_gmuwrapper = {
.base = {
.get_param = adreno_get_param,
.set_param = adreno_set_param,
.hw_init = a6xx_hw_init,
.ucode_load = a6xx_ucode_load,
.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,
#if defined(CONFIG_DRM_MSM_GPU_STATE)
.gpu_state_get = a6xx_gpu_state_get,
.gpu_state_put = a6xx_gpu_state_put,
#endif
.create_vm = a6xx_create_vm,
.create_private_vm = a6xx_create_private_vm,
.get_rptr = a6xx_get_rptr,
.progress = a6xx_progress,
},
.get_timestamp = a6xx_get_timestamp,
};
static const struct adreno_gpu_funcs funcs_a7xx = {
.base = {
.get_param = adreno_get_param,
.set_param = adreno_set_param,
.hw_init = a6xx_hw_init,
.ucode_load = a6xx_ucode_load,
.pm_suspend = a6xx_gmu_pm_suspend,
.pm_resume = a6xx_gmu_pm_resume,
.recover = a6xx_recover,
.submit = a7xx_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_gpu_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_vm = a6xx_create_vm,
.create_private_vm = a6xx_create_private_vm,
.get_rptr = a6xx_get_rptr,
.progress = a6xx_progress,
},
.get_timestamp = a6xx_gmu_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;
struct device_node *node;
struct a6xx_gpu *a6xx_gpu;
struct adreno_gpu *adreno_gpu;
struct msm_gpu *gpu;
extern int enable_preemption;
bool is_a7xx;
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;
mutex_init(&a6xx_gpu->gmu.lock);
adreno_gpu->registers = NULL;
/* 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);
adreno_gpu->gmu_is_wrapper = of_device_is_compatible(node, "qcom,adreno-gmu-wrapper");
adreno_gpu->base.hw_apriv =
!!(config->info->quirks & ADRENO_QUIRK_HAS_HW_APRIV);
/* gpu->info only gets assigned in adreno_gpu_init() */
is_a7xx = config->info->family == ADRENO_7XX_GEN1 ||
config->info->family == ADRENO_7XX_GEN2 ||
config->info->family == ADRENO_7XX_GEN3;
a6xx_llc_slices_init(pdev, a6xx_gpu, is_a7xx);
ret = a6xx_set_supported_hw(&pdev->dev, config->info);
if (ret) {
a6xx_llc_slices_destroy(a6xx_gpu);
kfree(a6xx_gpu);
return ERR_PTR(ret);
}
if ((enable_preemption == 1) || (enable_preemption == -1 &&
(config->info->quirks & ADRENO_QUIRK_PREEMPTION)))
ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs_a7xx, 4);
else if (is_a7xx)
ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs_a7xx, 1);
else if (adreno_has_gmu_wrapper(adreno_gpu))
ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs_gmuwrapper, 1);
else
ret = adreno_gpu_init(dev, pdev, adreno_gpu, &funcs, 1);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
}
/*
* For now only clamp to idle freq for devices where this is known not
* to cause power supply issues:
*/
if (adreno_is_a618(adreno_gpu) || adreno_is_7c3(adreno_gpu))
priv->gpu_clamp_to_idle = true;
if (adreno_has_gmu_wrapper(adreno_gpu))
ret = a6xx_gmu_wrapper_init(a6xx_gpu, node);
else
ret = a6xx_gmu_init(a6xx_gpu, node);
of_node_put(node);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
}
if (adreno_is_a7xx(adreno_gpu)) {
ret = a7xx_cx_mem_init(a6xx_gpu);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
}
}
adreno_gpu->uche_trap_base = 0x1fffffffff000ull;
msm_mmu_set_fault_handler(to_msm_vm(gpu->vm)->mmu, gpu,
a6xx_fault_handler);
ret = a6xx_calc_ubwc_config(adreno_gpu);
if (ret) {
a6xx_destroy(&(a6xx_gpu->base.base));
return ERR_PTR(ret);
}
/* Set up the preemption specific bits and pieces for each ringbuffer */
a6xx_preempt_init(gpu);
return gpu;
}
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