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build/patch/kernel/sunxi-next/0045-drm-lima-add-GPU-device-functions.patch

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From 1656622231f4fc9ba6260ad1c0a44e574793a04c Mon Sep 17 00:00:00 2001
From: Lima Project Developers <dri-devel@lists.freedesktop.org>
Date: Mon, 14 May 2018 21:41:53 +0800
Subject: [PATCH 045/146] drm/lima: add GPU device functions
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Signed-off-by: Simon Shields <simon@lineageos.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
drivers/gpu/drm/lima/lima_device.c | 407 +++++++++++++++++++++++++++++
drivers/gpu/drm/lima/lima_device.h | 136 ++++++++++
2 files changed, 543 insertions(+)
create mode 100644 drivers/gpu/drm/lima/lima_device.c
create mode 100644 drivers/gpu/drm/lima/lima_device.h
diff --git a/drivers/gpu/drm/lima/lima_device.c b/drivers/gpu/drm/lima/lima_device.c
new file mode 100644
index 000000000000..a6c3905a0c85
--- /dev/null
+++ b/drivers/gpu/drm/lima/lima_device.c
@@ -0,0 +1,407 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include "lima_device.h"
+#include "lima_gp.h"
+#include "lima_pp.h"
+#include "lima_mmu.h"
+#include "lima_pmu.h"
+#include "lima_l2_cache.h"
+#include "lima_dlbu.h"
+#include "lima_bcast.h"
+#include "lima_vm.h"
+
+struct lima_ip_desc {
+ char *name;
+ char *irq_name;
+ bool must_have[lima_gpu_num];
+ int offset[lima_gpu_num];
+
+ int (*init)(struct lima_ip *);
+ void (*fini)(struct lima_ip *);
+};
+
+#define LIMA_IP_DESC(ipname, mst0, mst1, off0, off1, func, irq) \
+ [lima_ip_##ipname] = { \
+ .name = #ipname, \
+ .irq_name = irq, \
+ .must_have = { \
+ [lima_gpu_mali400] = mst0, \
+ [lima_gpu_mali450] = mst1, \
+ }, \
+ .offset = { \
+ [lima_gpu_mali400] = off0, \
+ [lima_gpu_mali450] = off1, \
+ }, \
+ .init = lima_##func##_init, \
+ .fini = lima_##func##_fini, \
+ }
+
+static struct lima_ip_desc lima_ip_desc[lima_ip_num] = {
+ LIMA_IP_DESC(pmu, false, false, 0x02000, 0x02000, pmu, "pmu"),
+ LIMA_IP_DESC(l2_cache0, true, true, 0x01000, 0x10000, l2_cache, NULL),
+ LIMA_IP_DESC(l2_cache1, false, true, -1, 0x01000, l2_cache, NULL),
+ LIMA_IP_DESC(l2_cache2, false, false, -1, 0x11000, l2_cache, NULL),
+ LIMA_IP_DESC(gp, true, true, 0x00000, 0x00000, gp, "gp"),
+ LIMA_IP_DESC(pp0, true, true, 0x08000, 0x08000, pp, "pp0"),
+ LIMA_IP_DESC(pp1, false, false, 0x0A000, 0x0A000, pp, "pp1"),
+ LIMA_IP_DESC(pp2, false, false, 0x0C000, 0x0C000, pp, "pp2"),
+ LIMA_IP_DESC(pp3, false, false, 0x0E000, 0x0E000, pp, "pp3"),
+ LIMA_IP_DESC(pp4, false, false, -1, 0x28000, pp, "pp4"),
+ LIMA_IP_DESC(pp5, false, false, -1, 0x2A000, pp, "pp5"),
+ LIMA_IP_DESC(pp6, false, false, -1, 0x2C000, pp, "pp6"),
+ LIMA_IP_DESC(pp7, false, false, -1, 0x2E000, pp, "pp7"),
+ LIMA_IP_DESC(gpmmu, true, true, 0x03000, 0x03000, mmu, "gpmmu"),
+ LIMA_IP_DESC(ppmmu0, true, true, 0x04000, 0x04000, mmu, "ppmmu0"),
+ LIMA_IP_DESC(ppmmu1, false, false, 0x05000, 0x05000, mmu, "ppmmu1"),
+ LIMA_IP_DESC(ppmmu2, false, false, 0x06000, 0x06000, mmu, "ppmmu2"),
+ LIMA_IP_DESC(ppmmu3, false, false, 0x07000, 0x07000, mmu, "ppmmu3"),
+ LIMA_IP_DESC(ppmmu4, false, false, -1, 0x1C000, mmu, "ppmmu4"),
+ LIMA_IP_DESC(ppmmu5, false, false, -1, 0x1D000, mmu, "ppmmu5"),
+ LIMA_IP_DESC(ppmmu6, false, false, -1, 0x1E000, mmu, "ppmmu6"),
+ LIMA_IP_DESC(ppmmu7, false, false, -1, 0x1F000, mmu, "ppmmu7"),
+ LIMA_IP_DESC(dlbu, false, true, -1, 0x14000, dlbu, NULL),
+ LIMA_IP_DESC(bcast, false, true, -1, 0x13000, bcast, NULL),
+ LIMA_IP_DESC(pp_bcast, false, true, -1, 0x16000, pp_bcast, "pp"),
+ LIMA_IP_DESC(ppmmu_bcast, false, true, -1, 0x15000, mmu, NULL),
+};
+
+const char *lima_ip_name(struct lima_ip *ip)
+{
+ return lima_ip_desc[ip->id].name;
+}
+
+static int lima_clk_init(struct lima_device *dev)
+{
+ int err;
+ unsigned long bus_rate, gpu_rate;
+
+ dev->clk_bus = devm_clk_get(dev->dev, "bus");
+ if (IS_ERR(dev->clk_bus)) {
+ dev_err(dev->dev, "get bus clk failed %ld\n", PTR_ERR(dev->clk_bus));
+ return PTR_ERR(dev->clk_bus);
+ }
+
+ dev->clk_gpu = devm_clk_get(dev->dev, "core");
+ if (IS_ERR(dev->clk_gpu)) {
+ dev_err(dev->dev, "get core clk failed %ld\n", PTR_ERR(dev->clk_gpu));
+ return PTR_ERR(dev->clk_gpu);
+ }
+
+ bus_rate = clk_get_rate(dev->clk_bus);
+ dev_info(dev->dev, "bus rate = %lu\n", bus_rate);
+
+ gpu_rate = clk_get_rate(dev->clk_gpu);
+ dev_info(dev->dev, "mod rate = %lu", gpu_rate);
+
+ if ((err = clk_prepare_enable(dev->clk_bus)))
+ return err;
+ if ((err = clk_prepare_enable(dev->clk_gpu)))
+ goto error_out0;
+
+ dev->reset = devm_reset_control_get_optional(dev->dev, NULL);
+ if (IS_ERR(dev->reset)) {
+ err = PTR_ERR(dev->reset);
+ goto error_out1;
+ } else if (dev->reset != NULL) {
+ if ((err = reset_control_deassert(dev->reset)))
+ goto error_out1;
+ }
+
+ return 0;
+
+error_out1:
+ clk_disable_unprepare(dev->clk_gpu);
+error_out0:
+ clk_disable_unprepare(dev->clk_bus);
+ return err;
+}
+
+static void lima_clk_fini(struct lima_device *dev)
+{
+ if (dev->reset != NULL)
+ reset_control_assert(dev->reset);
+ clk_disable_unprepare(dev->clk_gpu);
+ clk_disable_unprepare(dev->clk_bus);
+}
+
+static int lima_regulator_init(struct lima_device *dev)
+{
+ int ret;
+ dev->regulator = devm_regulator_get_optional(dev->dev, "mali");
+ if (IS_ERR(dev->regulator)) {
+ ret = PTR_ERR(dev->regulator);
+ dev->regulator = NULL;
+ if (ret == -ENODEV)
+ return 0;
+ dev_err(dev->dev, "failed to get regulator: %ld\n", PTR_ERR(dev->regulator));
+ return ret;
+ }
+
+ ret = regulator_enable(dev->regulator);
+ if (ret < 0) {
+ dev_err(dev->dev, "failed to enable regulator: %d\n", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static void lima_regulator_fini(struct lima_device *dev)
+{
+ if (dev->regulator)
+ regulator_disable(dev->regulator);
+}
+
+static int lima_init_ip(struct lima_device *dev, int index)
+{
+ struct lima_ip_desc *desc = lima_ip_desc + index;
+ struct lima_ip *ip = dev->ip + index;
+ int offset = desc->offset[dev->id];
+ bool must = desc->must_have[dev->id];
+ int err;
+
+ if (offset < 0)
+ return 0;
+
+ ip->dev = dev;
+ ip->id = index;
+ ip->iomem = dev->iomem + offset;
+ if (desc->irq_name) {
+ err = platform_get_irq_byname(dev->pdev, desc->irq_name);
+ if (err < 0)
+ goto out;
+ ip->irq = err;
+ }
+
+ err = desc->init(ip);
+ if (!err) {
+ ip->present = true;
+ return 0;
+ }
+
+out:
+ return must ? err : 0;
+}
+
+static void lima_fini_ip(struct lima_device *ldev, int index)
+{
+ struct lima_ip_desc *desc = lima_ip_desc + index;
+ struct lima_ip *ip = ldev->ip + index;
+
+ if (ip->present)
+ desc->fini(ip);
+}
+
+static int lima_init_gp_pipe(struct lima_device *dev)
+{
+ struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+ int err;
+
+ if ((err = lima_sched_pipe_init(pipe, "gp")))
+ return err;
+
+ pipe->l2_cache[pipe->num_l2_cache++] = dev->ip + lima_ip_l2_cache0;
+ pipe->mmu[pipe->num_mmu++] = dev->ip + lima_ip_gpmmu;
+ pipe->processor[pipe->num_processor++] = dev->ip + lima_ip_gp;
+
+ if ((err = lima_gp_pipe_init(dev))) {
+ lima_sched_pipe_fini(pipe);
+ return err;
+ }
+
+ return 0;
+}
+
+static void lima_fini_gp_pipe(struct lima_device *dev)
+{
+ struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_gp;
+
+ lima_gp_pipe_fini(dev);
+ lima_sched_pipe_fini(pipe);
+}
+
+static int lima_init_pp_pipe(struct lima_device *dev)
+{
+ struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
+ int err, i;
+
+ if ((err = lima_sched_pipe_init(pipe, "pp")))
+ return err;
+
+ for (i = 0; i < LIMA_SCHED_PIPE_MAX_PROCESSOR; i++) {
+ struct lima_ip *pp = dev->ip + lima_ip_pp0 + i;
+ struct lima_ip *ppmmu = dev->ip + lima_ip_ppmmu0 + i;
+ struct lima_ip *l2_cache;
+
+ if (dev->id == lima_gpu_mali400)
+ l2_cache = dev->ip + lima_ip_l2_cache0;
+ else
+ l2_cache = dev->ip + lima_ip_l2_cache1 + (i >> 2);
+
+ if (pp->present && ppmmu->present && l2_cache->present) {
+ pipe->mmu[pipe->num_mmu++] = ppmmu;
+ pipe->processor[pipe->num_processor++] = pp;
+ if (!pipe->l2_cache[i >> 2])
+ pipe->l2_cache[pipe->num_l2_cache++] = l2_cache;
+ }
+ }
+
+ if (dev->ip[lima_ip_bcast].present) {
+ pipe->bcast_processor = dev->ip + lima_ip_pp_bcast;
+ pipe->bcast_mmu = dev->ip + lima_ip_ppmmu_bcast;
+ }
+
+ if ((err = lima_pp_pipe_init(dev))) {
+ lima_sched_pipe_fini(pipe);
+ return err;
+ }
+
+ return 0;
+}
+
+static void lima_fini_pp_pipe(struct lima_device *dev)
+{
+ struct lima_sched_pipe *pipe = dev->pipe + lima_pipe_pp;
+
+ lima_pp_pipe_fini(dev);
+ lima_sched_pipe_fini(pipe);
+}
+
+int lima_device_init(struct lima_device *ldev)
+{
+ int err, i;
+ struct resource *res;
+
+ dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
+
+ err = lima_clk_init(ldev);
+ if (err) {
+ dev_err(ldev->dev, "clk init fail %d\n", err);
+ return err;
+ }
+
+ if ((err = lima_regulator_init(ldev))) {
+ dev_err(ldev->dev, "regulator init fail %d\n", err);
+ goto err_out0;
+ }
+
+ err = lima_ttm_init(ldev);
+ if (err)
+ goto err_out1;
+
+ ldev->empty_vm = lima_vm_create(ldev);
+ if (!ldev->empty_vm) {
+ err = -ENOMEM;
+ goto err_out2;
+ }
+
+ ldev->va_start = 0;
+ if (ldev->id == lima_gpu_mali450) {
+ ldev->va_end = LIMA_VA_RESERVE_START;
+ ldev->dlbu_cpu = dma_alloc_wc(
+ ldev->dev, LIMA_PAGE_SIZE,
+ &ldev->dlbu_dma, GFP_KERNEL);
+ if (!ldev->dlbu_cpu) {
+ err = -ENOMEM;
+ goto err_out3;
+ }
+ }
+ else
+ ldev->va_end = LIMA_VA_RESERVE_END;
+
+ res = platform_get_resource(ldev->pdev, IORESOURCE_MEM, 0);
+ ldev->iomem = devm_ioremap_resource(ldev->dev, res);
+ if (IS_ERR(ldev->iomem)) {
+ dev_err(ldev->dev, "fail to ioremap iomem\n");
+ err = PTR_ERR(ldev->iomem);
+ goto err_out4;
+ }
+
+ for (i = 0; i < lima_ip_num; i++) {
+ err = lima_init_ip(ldev, i);
+ if (err)
+ goto err_out5;
+ }
+
+ err = lima_init_gp_pipe(ldev);
+ if (err)
+ goto err_out5;
+
+ err = lima_init_pp_pipe(ldev);
+ if (err)
+ goto err_out6;
+
+ if (ldev->id == lima_gpu_mali450) {
+ lima_dlbu_enable(ldev);
+ lima_bcast_enable(ldev);
+ }
+
+ return 0;
+
+err_out6:
+ lima_fini_gp_pipe(ldev);
+err_out5:
+ while (--i >= 0)
+ lima_fini_ip(ldev, i);
+err_out4:
+ if (ldev->dlbu_cpu)
+ dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
+ ldev->dlbu_cpu, ldev->dlbu_dma);
+err_out3:
+ lima_vm_put(ldev->empty_vm);
+err_out2:
+ lima_ttm_fini(ldev);
+err_out1:
+ lima_regulator_fini(ldev);
+err_out0:
+ lima_clk_fini(ldev);
+ return err;
+}
+
+void lima_device_fini(struct lima_device *ldev)
+{
+ int i;
+
+ lima_fini_pp_pipe(ldev);
+ lima_fini_gp_pipe(ldev);
+
+ for (i = lima_ip_num - 1; i >= 0; i--)
+ lima_fini_ip(ldev, i);
+
+ if (ldev->dlbu_cpu)
+ dma_free_wc(ldev->dev, LIMA_PAGE_SIZE,
+ ldev->dlbu_cpu, ldev->dlbu_dma);
+
+ lima_vm_put(ldev->empty_vm);
+
+ lima_ttm_fini(ldev);
+
+ lima_regulator_fini(ldev);
+
+ lima_clk_fini(ldev);
+}
diff --git a/drivers/gpu/drm/lima/lima_device.h b/drivers/gpu/drm/lima/lima_device.h
new file mode 100644
index 000000000000..6c9c26b9e122
--- /dev/null
+++ b/drivers/gpu/drm/lima/lima_device.h
@@ -0,0 +1,136 @@
+/*
+ * Copyright (C) 2017-2018 Lima Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+#ifndef __LIMA_DEVICE_H__
+#define __LIMA_DEVICE_H__
+
+#include <drm/drm_device.h>
+
+#include "lima_sched.h"
+#include "lima_ttm.h"
+
+enum lima_gpu_id {
+ lima_gpu_mali400 = 0,
+ lima_gpu_mali450,
+ lima_gpu_num,
+};
+
+enum lima_ip_id {
+ lima_ip_pmu,
+ lima_ip_gpmmu,
+ lima_ip_ppmmu0,
+ lima_ip_ppmmu1,
+ lima_ip_ppmmu2,
+ lima_ip_ppmmu3,
+ lima_ip_ppmmu4,
+ lima_ip_ppmmu5,
+ lima_ip_ppmmu6,
+ lima_ip_ppmmu7,
+ lima_ip_gp,
+ lima_ip_pp0,
+ lima_ip_pp1,
+ lima_ip_pp2,
+ lima_ip_pp3,
+ lima_ip_pp4,
+ lima_ip_pp5,
+ lima_ip_pp6,
+ lima_ip_pp7,
+ lima_ip_l2_cache0,
+ lima_ip_l2_cache1,
+ lima_ip_l2_cache2,
+ lima_ip_dlbu,
+ lima_ip_bcast,
+ lima_ip_pp_bcast,
+ lima_ip_ppmmu_bcast,
+ lima_ip_num,
+};
+
+struct lima_device;
+
+struct lima_ip {
+ struct lima_device *dev;
+ enum lima_ip_id id;
+ bool present;
+
+ void __iomem *iomem;
+ int irq;
+
+ union {
+ /* pmu */
+ unsigned switch_delay;
+ /* gp/pp */
+ bool async_reset;
+ /* l2 cache */
+ spinlock_t lock;
+ } data;
+};
+
+enum lima_pipe_id {
+ lima_pipe_gp,
+ lima_pipe_pp,
+ lima_pipe_num,
+};
+
+struct lima_device {
+ struct device *dev;
+ struct drm_device *ddev;
+ struct platform_device *pdev;
+
+ enum lima_gpu_id id;
+ int num_pp;
+
+ void __iomem *iomem;
+ struct clk *clk_bus;
+ struct clk *clk_gpu;
+ struct reset_control *reset;
+ struct regulator *regulator;
+
+ struct lima_ip ip[lima_ip_num];
+ struct lima_sched_pipe pipe[lima_pipe_num];
+
+ struct lima_mman mman;
+
+ struct lima_vm *empty_vm;
+ uint64_t va_start;
+ uint64_t va_end;
+
+ u32 *dlbu_cpu;
+ dma_addr_t dlbu_dma;
+};
+
+static inline struct lima_device *
+to_lima_dev(struct drm_device *dev)
+{
+ return dev->dev_private;
+}
+
+static inline struct lima_device *
+ttm_to_lima_dev(struct ttm_bo_device *dev)
+{
+ return container_of(dev, struct lima_device, mman.bdev);
+}
+
+int lima_device_init(struct lima_device *ldev);
+void lima_device_fini(struct lima_device *ldev);
+
+const char *lima_ip_name(struct lima_ip *ip);
+
+#endif
--
2.17.1
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