423af970da
Some debug messages carried the ip name, or included "lima", or included both the ip name and then the numbered ip name again. Make the messages more consistent by always looking up and showing the ip name first. Signed-off-by: Erico Nunes <nunes.erico@gmail.com> Signed-off-by: Qiang Yu <yuq825@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240124025947.2110659-9-nunes.erico@gmail.com
101 lines
2.0 KiB
C
101 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0 OR MIT
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/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
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#include <linux/iopoll.h>
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#include <linux/device.h>
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#include "lima_device.h"
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#include "lima_l2_cache.h"
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#include "lima_regs.h"
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#define l2_cache_write(reg, data) writel(data, ip->iomem + reg)
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#define l2_cache_read(reg) readl(ip->iomem + reg)
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static int lima_l2_cache_wait_idle(struct lima_ip *ip)
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{
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struct lima_device *dev = ip->dev;
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int err;
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u32 v;
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err = readl_poll_timeout(ip->iomem + LIMA_L2_CACHE_STATUS, v,
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!(v & LIMA_L2_CACHE_STATUS_COMMAND_BUSY),
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0, 1000);
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if (err) {
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dev_err(dev->dev, "%s wait command timeout\n",
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lima_ip_name(ip));
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return err;
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}
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return 0;
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}
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int lima_l2_cache_flush(struct lima_ip *ip)
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{
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int ret;
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spin_lock(&ip->data.lock);
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l2_cache_write(LIMA_L2_CACHE_COMMAND, LIMA_L2_CACHE_COMMAND_CLEAR_ALL);
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ret = lima_l2_cache_wait_idle(ip);
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spin_unlock(&ip->data.lock);
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return ret;
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}
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static int lima_l2_cache_hw_init(struct lima_ip *ip)
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{
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int err;
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err = lima_l2_cache_flush(ip);
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if (err)
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return err;
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l2_cache_write(LIMA_L2_CACHE_ENABLE,
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LIMA_L2_CACHE_ENABLE_ACCESS |
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LIMA_L2_CACHE_ENABLE_READ_ALLOCATE);
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l2_cache_write(LIMA_L2_CACHE_MAX_READS, 0x1c);
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return 0;
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}
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int lima_l2_cache_resume(struct lima_ip *ip)
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{
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return lima_l2_cache_hw_init(ip);
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}
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void lima_l2_cache_suspend(struct lima_ip *ip)
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{
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}
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int lima_l2_cache_init(struct lima_ip *ip)
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{
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int i;
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u32 size;
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struct lima_device *dev = ip->dev;
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/* l2_cache2 only exists when one of PP4-7 present */
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if (ip->id == lima_ip_l2_cache2) {
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for (i = lima_ip_pp4; i <= lima_ip_pp7; i++) {
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if (dev->ip[i].present)
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break;
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}
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if (i > lima_ip_pp7)
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return -ENODEV;
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}
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spin_lock_init(&ip->data.lock);
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size = l2_cache_read(LIMA_L2_CACHE_SIZE);
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dev_info(dev->dev, "%s %uK, %u-way, %ubyte cache line, %ubit external bus\n",
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lima_ip_name(ip),
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1 << (((size >> 16) & 0xff) - 10),
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1 << ((size >> 8) & 0xff),
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1 << (size & 0xff),
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1 << ((size >> 24) & 0xff));
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return lima_l2_cache_hw_init(ip);
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}
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void lima_l2_cache_fini(struct lima_ip *ip)
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{
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}
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