1 files changed, 71 insertions, 3 deletions

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
index 550de6ad68ef..53cfdf4e6c34 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
+++ b/drivers/gpu/drm/msm/adreno/a6xx_hfi.c
@@ -23,6 +23,7 @@ static const char * const a6xx_hfi_msg_id[] = {
 	HFI_MSG_ID(HFI_H2F_MSG_START),
 	HFI_MSG_ID(HFI_H2F_FEATURE_CTRL),
 	HFI_MSG_ID(HFI_H2F_MSG_CORE_FW_START),
+	HFI_MSG_ID(HFI_H2F_MSG_TABLE),
 	HFI_MSG_ID(HFI_H2F_MSG_GX_BW_PERF_VOTE),
 	HFI_MSG_ID(HFI_H2F_MSG_PREPARE_SLUMBER),
 };
@@ -105,10 +106,25 @@ static int a6xx_hfi_wait_for_msg_interrupt(struct a6xx_gmu *gmu, u32 id, u32 seq
 {
 	int ret;
 	u32 val;
+	struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu);
+
+	do {
+		/* Wait for a response */
+		ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_GMU2HOST_INTR_INFO, val,
+			val & A6XX_GMU_GMU2HOST_INTR_INFO_MSGQ, 100, 1000000);
+
+		if (!ret)
+			break;
 
-	/* Wait for a response */
-	ret = gmu_poll_timeout(gmu, REG_A6XX_GMU_GMU2HOST_INTR_INFO, val,
-		val & A6XX_GMU_GMU2HOST_INTR_INFO_MSGQ, 100, 1000000);
+		if (completion_done(&a6xx_gpu->base.fault_coredump_done))
+			break;
+
+		/* We may timeout because the GMU is temporarily wedged from
+		 * pending faults from the GPU and we are taking a devcoredump.
+		 * Wait until the MMU is resumed and try again.
+		 */
+		wait_for_completion(&a6xx_gpu->base.fault_coredump_done);
+	} while (true);
 
 	if (ret) {
 		DRM_DEV_ERROR(gmu->dev,
@@ -255,11 +271,63 @@ static int a6xx_hfi_send_perf_table_v1(struct a6xx_gmu *gmu)
 		NULL, 0);
 }
 
+static int a8xx_hfi_send_perf_table(struct a6xx_gmu *gmu)
+{
+	unsigned int num_gx_votes = 3, num_cx_votes = 2;
+	struct a6xx_hfi_table_entry *entry;
+	struct a6xx_hfi_table *tbl;
+	int ret, i;
+	u32 size;
+
+	size = sizeof(*tbl) +  (2 * sizeof(tbl->entry[0])) +
+		(gmu->nr_gpu_freqs * num_gx_votes * sizeof(gmu->gx_arc_votes[0])) +
+		(gmu->nr_gmu_freqs * num_cx_votes * sizeof(gmu->cx_arc_votes[0]));
+	tbl = kzalloc(size, GFP_KERNEL);
+	tbl->type = HFI_TABLE_GPU_PERF;
+
+	/* First fill GX votes */
+	entry = &tbl->entry[0];
+	entry->count = gmu->nr_gpu_freqs;
+	entry->stride = num_gx_votes;
+
+	for (i = 0; i < gmu->nr_gpu_freqs; i++) {
+		unsigned int base = i * entry->stride;
+
+		entry->data[base+0] = gmu->gx_arc_votes[i];
+		entry->data[base+1] = gmu->dep_arc_votes[i];
+		entry->data[base+2] = gmu->gpu_freqs[i] / 1000;
+	}
+
+	/* Then fill CX votes */
+	entry = (struct a6xx_hfi_table_entry *)
+		&tbl->entry[0].data[gmu->nr_gpu_freqs * num_gx_votes];
+
+	entry->count = gmu->nr_gmu_freqs;
+	entry->stride = num_cx_votes;
+
+	for (i = 0; i < gmu->nr_gmu_freqs; i++) {
+		unsigned int base = i * entry->stride;
+
+		entry->data[base] = gmu->cx_arc_votes[i];
+		entry->data[base+1] = gmu->gmu_freqs[i] / 1000;
+	}
+
+	ret = a6xx_hfi_send_msg(gmu, HFI_H2F_MSG_TABLE, tbl, size, NULL, 0);
+
+	kfree(tbl);
+	return ret;
+}
+
 static int a6xx_hfi_send_perf_table(struct a6xx_gmu *gmu)
 {
+	struct a6xx_gpu *a6xx_gpu = container_of(gmu, struct a6xx_gpu, gmu);
+	struct adreno_gpu *adreno_gpu = &a6xx_gpu->base;
 	struct a6xx_hfi_msg_perf_table msg = { 0 };
 	int i;
 
+	if (adreno_is_a8xx(adreno_gpu))
+		return a8xx_hfi_send_perf_table(gmu);
+
 	msg.num_gpu_levels = gmu->nr_gpu_freqs;
 	msg.num_gmu_levels = gmu->nr_gmu_freqs;