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AR-1 - Adding support category for distributions AR-4 - Remove Allwinner legacy AR-5 - Drop Udoo family and move Udoo board into newly created imx6 family AR-9 - Rename sunxi-next to sunxi-legacy AR-10 - Rename sunxi-dev to sunxi-current AR-11 - Adding Radxa Rockpi S support AR-13 - Rename rockchip64-default to rockchip64-legacy AR-14 - Add rockchip64-current as mainline source AR-15 - Drop Rockchip 4.19.y NEXT, current become 5.3.y AR-16 - Rename RK3399 default to legacy AR-17 - Rename Odroid XU4 next and default to legacy 4.14.y, add DEV 5.4.y AR-18 - Add Odroid N2 current mainline AR-19 - Move Odroid C1 to meson family AR-20 - Rename mvebu64-default to mvebu64-legacy AR-21 - Rename mvebu-default to mvebu-legacy AR-22 - Rename mvebu-next to mvebu-current AR-23 - Drop meson64 default and next, current becomes former DEV 5.3.y AR-24 - Drop cubox family and move Cubox/Hummingboard boards under imx6 AR-26 - Adjust motd AR-27 - Enabling distribution release status AR-28 - Added new GCC compilers AR-29 - Implementing Ubuntu Eoan AR-30 - Add desktop packages per board or family AR-31 - Remove (Ubuntu/Debian) distribution name from image filename AR-32 - Move arch configs from configuration.sh to separate arm64 and armhf config files AR-33 - Revision numbers for beta builds changed to day_in_the_year AR-34 - Patches support linked patches AR-35 - Break meson64 family into gxbb and gxl AR-36 - Add Nanopineo2 Black AR-38 - Upgrade option from old branches to new one via armbian-config AR-41 - Show full timezone info AR-43 - Merge Odroid N2 to meson64 AR-44 - Enable FORCE_BOOTSCRIPT_UPDATE for all builds
158 lines
5.2 KiB
Diff
158 lines
5.2 KiB
Diff
From 821cfa3044859b50d6d2f2f1fdbd1761bb53099b Mon Sep 17 00:00:00 2001
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From: Qiang Yu <yuq825@gmail.com>
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Date: Mon, 14 May 2018 22:03:24 +0800
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Subject: [PATCH 047/146] drm/lima: add L2 cache functions
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Signed-off-by: Qiang Yu <yuq825@gmail.com>
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---
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drivers/gpu/drm/lima/lima_l2_cache.c | 98 ++++++++++++++++++++++++++++
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drivers/gpu/drm/lima/lima_l2_cache.h | 32 +++++++++
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2 files changed, 130 insertions(+)
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create mode 100644 drivers/gpu/drm/lima/lima_l2_cache.c
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create mode 100644 drivers/gpu/drm/lima/lima_l2_cache.h
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diff --git a/drivers/gpu/drm/lima/lima_l2_cache.c b/drivers/gpu/drm/lima/lima_l2_cache.c
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new file mode 100644
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index 000000000000..a9b85de5c51a
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--- /dev/null
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+++ b/drivers/gpu/drm/lima/lima_l2_cache.c
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@@ -0,0 +1,98 @@
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+/*
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+ * Copyright (C) 2017-2018 Lima Project
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a
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+ * copy of this software and associated documentation files (the "Software"),
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+ * to deal in the Software without restriction, including without limitation
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+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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+ * and/or sell copies of the Software, and to permit persons to whom the
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+ * Software is furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ * OTHER DEALINGS IN THE SOFTWARE.
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+ */
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+
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+#include <linux/io.h>
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+#include <linux/device.h>
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+
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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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+
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+#define l2_cache_write(reg, data) writel(data, ip->iomem + LIMA_L2_CACHE_##reg)
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+#define l2_cache_read(reg) readl(ip->iomem + LIMA_L2_CACHE_##reg)
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+
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+static int lima_l2_cache_wait_idle(struct lima_ip *ip)
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+{
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+ int timeout;
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+ struct lima_device *dev = ip->dev;
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+
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+ for (timeout = 100000; timeout > 0; timeout--) {
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+ if (!(l2_cache_read(STATUS) & LIMA_L2_CACHE_STATUS_COMMAND_BUSY))
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+ break;
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+ }
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+ if (!timeout) {
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+ dev_err(dev->dev, "l2 cache wait command timeout\n");
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+ return -ETIMEDOUT;
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+ }
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+ return 0;
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+}
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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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+
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+ spin_lock(&ip->data.lock);
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+ l2_cache_write(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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+
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+int lima_l2_cache_init(struct lima_ip *ip)
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+{
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+ int i, err;
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+ u32 size;
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+ struct lima_device *dev = ip->dev;
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+
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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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+
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+ spin_lock_init(&ip->data.lock);
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+
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+ size = l2_cache_read(SIZE);
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+ dev_info(dev->dev, "l2 cache %uK, %u-way, %ubyte cache line, %ubit external bus\n",
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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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+
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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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+
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+ l2_cache_write(ENABLE, LIMA_L2_CACHE_ENABLE_ACCESS | LIMA_L2_CACHE_ENABLE_READ_ALLOCATE);
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+ l2_cache_write(MAX_READS, 0x1c);
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+
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+ return 0;
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+}
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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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+}
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diff --git a/drivers/gpu/drm/lima/lima_l2_cache.h b/drivers/gpu/drm/lima/lima_l2_cache.h
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new file mode 100644
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index 000000000000..4a35725bf38d
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--- /dev/null
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+++ b/drivers/gpu/drm/lima/lima_l2_cache.h
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@@ -0,0 +1,32 @@
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+/*
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+ * Copyright (C) 2017-2018 Lima Project
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+ *
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+ * Permission is hereby granted, free of charge, to any person obtaining a
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+ * copy of this software and associated documentation files (the "Software"),
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+ * to deal in the Software without restriction, including without limitation
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+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
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+ * and/or sell copies of the Software, and to permit persons to whom the
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+ * Software is furnished to do so, subject to the following conditions:
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+ *
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+ * The above copyright notice and this permission notice shall be included in
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+ * all copies or substantial portions of the Software.
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+ *
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+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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+ * OTHER DEALINGS IN THE SOFTWARE.
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+ */
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+#ifndef __LIMA_L2_CACHE_H__
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+#define __LIMA_L2_CACHE_H__
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+
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+struct lima_ip;
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+
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+int lima_l2_cache_init(struct lima_ip *ip);
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+void lima_l2_cache_fini(struct lima_ip *ip);
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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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+#endif
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--
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2.17.1
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