brintos

brintos / linux-shallow public Read only

0
0
Text · 4.2 KiB · 9d06678 Raw
146 lines · c
1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Copyright (C) 2010 Google, Inc.4 * Author: Erik Gilling <konkers@android.com>5 *6 * Copyright (C) 2011-2017 NVIDIA Corporation7 */8 9#include "../dev.h"10#include "../debug.h"11#include "../cdma.h"12#include "../channel.h"13 14static void host1x_debug_show_channel_cdma(struct host1x *host,15					   struct host1x_channel *ch,16					   struct output *o)17{18	struct host1x_cdma *cdma = &ch->cdma;19	dma_addr_t dmastart = 0, dmaend = 0;20	u32 dmaput, dmaget, dmactrl;21	u32 offset, class;22	u32 ch_stat;23 24#if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) && HOST1X_HW >= 625	dmastart = host1x_ch_readl(ch, HOST1X_CHANNEL_DMASTART_HI);26	dmastart <<= 32;27#endif28	dmastart |= host1x_ch_readl(ch, HOST1X_CHANNEL_DMASTART);29 30#if defined(CONFIG_ARCH_DMA_ADDR_T_64BIT) && HOST1X_HW >= 631	dmaend = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAEND_HI);32	dmaend <<= 32;33#endif34	dmaend |= host1x_ch_readl(ch, HOST1X_CHANNEL_DMAEND);35 36	dmaput = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAPUT);37	dmaget = host1x_ch_readl(ch, HOST1X_CHANNEL_DMAGET);38	dmactrl = host1x_ch_readl(ch, HOST1X_CHANNEL_DMACTRL);39	offset = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDP_OFFSET);40	class = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDP_CLASS);41	ch_stat = host1x_ch_readl(ch, HOST1X_CHANNEL_CHANNELSTAT);42 43	host1x_debug_output(o, "%u-%s: ", ch->id, dev_name(ch->dev));44 45	if (dmactrl & HOST1X_CHANNEL_DMACTRL_DMASTOP ||46	    !ch->cdma.push_buffer.mapped) {47		host1x_debug_output(o, "inactive\n\n");48		return;49	}50 51	if (class == HOST1X_CLASS_HOST1X && offset == HOST1X_UCLASS_WAIT_SYNCPT)52		host1x_debug_output(o, "waiting on syncpt\n");53	else54		host1x_debug_output(o, "active class %02x, offset %04x\n",55				    class, offset);56 57	host1x_debug_output(o, "DMASTART %pad, DMAEND %pad\n", &dmastart, &dmaend);58	host1x_debug_output(o, "DMAPUT %08x DMAGET %08x DMACTL %08x\n",59			    dmaput, dmaget, dmactrl);60	host1x_debug_output(o, "CHANNELSTAT %02x\n", ch_stat);61 62	show_channel_gathers(o, cdma);63	host1x_debug_output(o, "\n");64}65 66static void host1x_debug_show_channel_fifo(struct host1x *host,67					   struct host1x_channel *ch,68					   struct output *o)69{70#if HOST1X_HW <= 671	u32 rd_ptr, wr_ptr, start, end;72	u32 payload = INVALID_PAYLOAD;73	unsigned int data_count = 0;74#endif75	u32 val;76 77	host1x_debug_output(o, "%u: fifo:\n", ch->id);78 79	val = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDFIFO_STAT);80	host1x_debug_output(o, "CMDFIFO_STAT %08x\n", val);81	if (val & HOST1X_CHANNEL_CMDFIFO_STAT_EMPTY) {82		host1x_debug_output(o, "[empty]\n");83		return;84	}85 86	val = host1x_ch_readl(ch, HOST1X_CHANNEL_CMDFIFO_RDATA);87	host1x_debug_output(o, "CMDFIFO_RDATA %08x\n", val);88 89#if HOST1X_HW <= 690	/* Peek pointer values are invalid during SLCG, so disable it */91	host1x_hypervisor_writel(host, 0x1, HOST1X_HV_ICG_EN_OVERRIDE);92 93	val = 0;94	val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ENABLE;95	val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_CHANNEL(ch->id);96	host1x_hypervisor_writel(host, val, HOST1X_HV_CMDFIFO_PEEK_CTRL);97 98	val = host1x_hypervisor_readl(host, HOST1X_HV_CMDFIFO_PEEK_PTRS);99	rd_ptr = HOST1X_HV_CMDFIFO_PEEK_PTRS_RD_PTR_V(val);100	wr_ptr = HOST1X_HV_CMDFIFO_PEEK_PTRS_WR_PTR_V(val);101 102	val = host1x_hypervisor_readl(host, HOST1X_HV_CMDFIFO_SETUP(ch->id));103	start = HOST1X_HV_CMDFIFO_SETUP_BASE_V(val);104	end = HOST1X_HV_CMDFIFO_SETUP_LIMIT_V(val);105 106	do {107		val = 0;108		val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ENABLE;109		val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_CHANNEL(ch->id);110		val |= HOST1X_HV_CMDFIFO_PEEK_CTRL_ADDR(rd_ptr);111		host1x_hypervisor_writel(host, val,112					 HOST1X_HV_CMDFIFO_PEEK_CTRL);113 114		val = host1x_hypervisor_readl(host,115					      HOST1X_HV_CMDFIFO_PEEK_READ);116 117		if (!data_count) {118			host1x_debug_output(o, "%03x 0x%08x: ",119					    rd_ptr - start, val);120			data_count = show_channel_command(o, val, &payload);121		} else {122			host1x_debug_cont(o, "%08x%s", val,123					  data_count > 1 ? ", " : "])\n");124			data_count--;125		}126 127		if (rd_ptr == end)128			rd_ptr = start;129		else130			rd_ptr++;131	} while (rd_ptr != wr_ptr);132 133	if (data_count)134		host1x_debug_cont(o, ", ...])\n");135	host1x_debug_output(o, "\n");136 137	host1x_hypervisor_writel(host, 0x0, HOST1X_HV_CMDFIFO_PEEK_CTRL);138	host1x_hypervisor_writel(host, 0x0, HOST1X_HV_ICG_EN_OVERRIDE);139#endif140}141 142static void host1x_debug_show_mlocks(struct host1x *host, struct output *o)143{144	/* TODO */145}146