disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/gpu/host1x/hw/channel_hw.c
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..
@@ -1,22 +1,12 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * Tegra host1x Channel
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  *
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  * Copyright (c) 2010-2013, NVIDIA Corporation.
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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7
 
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 #include <linux/host1x.h>
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+#include <linux/iommu.h>
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 #include <linux/slab.h>
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 #include <trace/events/host1x.h>
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@@ -26,7 +16,6 @@
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 #include "../intr.h"
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 #include "../job.h"
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18
 
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-#define HOST1X_CHANNEL_SIZE 16384
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 #define TRACE_MAX_LENGTH 128U
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20
 
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 static void trace_write_gather(struct host1x_cdma *cdma, struct host1x_bo *bo,
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@@ -61,15 +50,37 @@
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 static void submit_gathers(struct host1x_job *job)
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 {
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 	struct host1x_cdma *cdma = &job->channel->cdma;
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+#if HOST1X_HW < 6
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+	struct device *dev = job->channel->dev;
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+#endif
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 	unsigned int i;
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 	for (i = 0; i < job->num_gathers; i++) {
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 		struct host1x_job_gather *g = &job->gathers[i];
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-		u32 op1 = host1x_opcode_gather(g->words);
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-		u32 op2 = g->base + g->offset;
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+		dma_addr_t addr = g->base + g->offset;
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+		u32 op2, op3;
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62
 
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-		trace_write_gather(cdma, g->bo, g->offset, op1 & 0xffff);
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-		host1x_cdma_push(cdma, op1, op2);
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+		op2 = lower_32_bits(addr);
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+		op3 = upper_32_bits(addr);
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+
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+		trace_write_gather(cdma, g->bo, g->offset, g->words);
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+
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+		if (op3 != 0) {
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+#if HOST1X_HW >= 6
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+			u32 op1 = host1x_opcode_gather_wide(g->words);
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+			u32 op4 = HOST1X_OPCODE_NOP;
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+
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+			host1x_cdma_push_wide(cdma, op1, op2, op3, op4);
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+#else
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+			dev_err(dev, "invalid gather for push buffer %pad\n",
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+				&addr);
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+			continue;
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+#endif
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+		} else {
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+			u32 op1 = host1x_opcode_gather(g->words);
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+
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+			host1x_cdma_push(cdma, op1, op2);
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+		}
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 	}
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 }
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..
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@@ -88,6 +99,20 @@
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 				HOST1X_UCLASS_LOAD_SYNCPT_BASE, 1),
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 			 HOST1X_UCLASS_LOAD_SYNCPT_BASE_BASE_INDX_F(id) |
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 			 HOST1X_UCLASS_LOAD_SYNCPT_BASE_VALUE_F(value));
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+}
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+
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+static void host1x_channel_set_streamid(struct host1x_channel *channel)
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+{
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+#if HOST1X_HW >= 6
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+	u32 sid = 0x7f;
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+#ifdef CONFIG_IOMMU_API
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+	struct iommu_fwspec *spec = dev_iommu_fwspec_get(channel->dev->parent);
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+	if (spec)
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+		sid = spec->ids[0] & 0xffff;
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+#endif
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+
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+	host1x_ch_writel(channel, sid, HOST1X_CHANNEL_SMMU_STREAMID);
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+#endif
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 }
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 static int channel_submit(struct host1x_job *job)
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@@ -120,6 +145,8 @@
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 		err = -ENOMEM;
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 		goto error;
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 	}
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+
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+	host1x_channel_set_streamid(ch);
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 	/* begin a CDMA submit */
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 	err = host1x_cdma_begin(&ch->cdma, job);
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@@ -203,7 +230,11 @@
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 static int host1x_channel_init(struct host1x_channel *ch, struct host1x *dev,
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 			       unsigned int index)
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 {
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-	ch->regs = dev->regs + index * HOST1X_CHANNEL_SIZE;
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+#if HOST1X_HW < 6
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+	ch->regs = dev->regs + index * 0x4000;
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+#else
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+	ch->regs = dev->regs + index * 0x100;
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+#endif
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 	enable_gather_filter(dev, ch);
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 	return 0;
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 }