#include <linux/clk.h>
#include <linux/regulator/consumer.h>
#include <linux/agp_backend.h>
+#include <linux/reset.h>
+#include <linux/iommu.h>
#include <asm/unaligned.h>
#include <soc/tegra/fuse.h>
+#include <soc/tegra/pmc.h>
#ifndef ioread32_native
#ifdef __BIG_ENDIAN
struct nvkm_sw *sw;
struct nvkm_engine *vic;
struct nvkm_engine *vp;
-
- struct nouveau_platform_gpu *gpu;
};
struct nvkm_subdev *nvkm_device_subdev(struct nvkm_device *, int index);
#ifndef __NVKM_DEVICE_TEGRA_H__
#define __NVKM_DEVICE_TEGRA_H__
#include <core/device.h>
+#include <core/mm.h>
struct nvkm_device_tegra {
struct nvkm_device device;
struct platform_device *pdev;
int irq;
+
+ struct reset_control *rst;
+ struct clk *clk;
+ struct clk *clk_pwr;
+
+ struct regulator *vdd;
+
+ struct {
+ /*
+ * Protects accesses to mm from subsystems
+ */
+ struct mutex mutex;
+
+ struct nvkm_mm mm;
+ struct iommu_domain *domain;
+ unsigned long pgshift;
+ } iommu;
+
+ int gpu_speedo;
};
int nvkm_device_tegra_new(struct platform_device *,
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
-
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/of.h>
-#include <linux/reset.h>
-#include <linux/regulator/consumer.h>
-#include <linux/iommu.h>
-#include <soc/tegra/fuse.h>
-#include <soc/tegra/pmc.h>
-
-#include "nouveau_drm.h"
#include "nouveau_platform.h"
-static int nouveau_platform_power_up(struct nouveau_platform_gpu *gpu)
-{
- int err;
-
- err = regulator_enable(gpu->vdd);
- if (err)
- goto err_power;
-
- err = clk_prepare_enable(gpu->clk);
- if (err)
- goto err_clk;
- err = clk_prepare_enable(gpu->clk_pwr);
- if (err)
- goto err_clk_pwr;
- clk_set_rate(gpu->clk_pwr, 204000000);
- udelay(10);
-
- reset_control_assert(gpu->rst);
- udelay(10);
-
- err = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D);
- if (err)
- goto err_clamp;
- udelay(10);
-
- reset_control_deassert(gpu->rst);
- udelay(10);
-
- return 0;
-
-err_clamp:
- clk_disable_unprepare(gpu->clk_pwr);
-err_clk_pwr:
- clk_disable_unprepare(gpu->clk);
-err_clk:
- regulator_disable(gpu->vdd);
-err_power:
- return err;
-}
-
-static int nouveau_platform_power_down(struct nouveau_platform_gpu *gpu)
-{
- int err;
-
- reset_control_assert(gpu->rst);
- udelay(10);
-
- clk_disable_unprepare(gpu->clk_pwr);
- clk_disable_unprepare(gpu->clk);
- udelay(10);
-
- err = regulator_disable(gpu->vdd);
- if (err)
- return err;
-
- return 0;
-}
-
-#if IS_ENABLED(CONFIG_IOMMU_API)
-
-static void nouveau_platform_probe_iommu(struct device *dev,
- struct nouveau_platform_gpu *gpu)
-{
- int err;
- unsigned long pgsize_bitmap;
-
- mutex_init(&gpu->iommu.mutex);
-
- if (iommu_present(&platform_bus_type)) {
- gpu->iommu.domain = iommu_domain_alloc(&platform_bus_type);
- if (IS_ERR(gpu->iommu.domain))
- goto error;
-
- /*
- * A IOMMU is only usable if it supports page sizes smaller
- * or equal to the system's PAGE_SIZE, with a preference if
- * both are equal.
- */
- pgsize_bitmap = gpu->iommu.domain->ops->pgsize_bitmap;
- if (pgsize_bitmap & PAGE_SIZE) {
- gpu->iommu.pgshift = PAGE_SHIFT;
- } else {
- gpu->iommu.pgshift = fls(pgsize_bitmap & ~PAGE_MASK);
- if (gpu->iommu.pgshift == 0) {
- dev_warn(dev, "unsupported IOMMU page size\n");
- goto free_domain;
- }
- gpu->iommu.pgshift -= 1;
- }
-
- err = iommu_attach_device(gpu->iommu.domain, dev);
- if (err)
- goto free_domain;
-
- err = nvkm_mm_init(&gpu->iommu._mm, 0,
- (1ULL << 40) >> gpu->iommu.pgshift, 1);
- if (err)
- goto detach_device;
-
- gpu->iommu.mm = &gpu->iommu._mm;
- }
-
- return;
-
-detach_device:
- iommu_detach_device(gpu->iommu.domain, dev);
-
-free_domain:
- iommu_domain_free(gpu->iommu.domain);
-
-error:
- gpu->iommu.domain = NULL;
- gpu->iommu.pgshift = 0;
- dev_err(dev, "cannot initialize IOMMU MM\n");
-}
-
-static void nouveau_platform_remove_iommu(struct device *dev,
- struct nouveau_platform_gpu *gpu)
-{
- if (gpu->iommu.domain) {
- nvkm_mm_fini(&gpu->iommu._mm);
- iommu_detach_device(gpu->iommu.domain, dev);
- iommu_domain_free(gpu->iommu.domain);
- }
-}
-
-#else
-
-static void nouveau_platform_probe_iommu(struct device *dev,
- struct nouveau_platform_gpu *gpu)
-{
-}
-
-static void nouveau_platform_remove_iommu(struct device *dev,
- struct nouveau_platform_gpu *gpu)
-{
-}
-
-#endif
-
static int nouveau_platform_probe(struct platform_device *pdev)
{
- struct nouveau_platform_gpu *gpu;
struct nvkm_device *device;
struct drm_device *drm;
- int err;
-
- gpu = devm_kzalloc(&pdev->dev, sizeof(*gpu), GFP_KERNEL);
- if (!gpu)
- return -ENOMEM;
-
- gpu->vdd = devm_regulator_get(&pdev->dev, "vdd");
- if (IS_ERR(gpu->vdd))
- return PTR_ERR(gpu->vdd);
-
- gpu->rst = devm_reset_control_get(&pdev->dev, "gpu");
- if (IS_ERR(gpu->rst))
- return PTR_ERR(gpu->rst);
-
- gpu->clk = devm_clk_get(&pdev->dev, "gpu");
- if (IS_ERR(gpu->clk))
- return PTR_ERR(gpu->clk);
-
- gpu->clk_pwr = devm_clk_get(&pdev->dev, "pwr");
- if (IS_ERR(gpu->clk_pwr))
- return PTR_ERR(gpu->clk_pwr);
-
- nouveau_platform_probe_iommu(&pdev->dev, gpu);
-
- err = nouveau_platform_power_up(gpu);
- if (err)
- return err;
+ int ret;
drm = nouveau_platform_device_create(pdev, &device);
- if (IS_ERR(drm)) {
- err = PTR_ERR(drm);
- goto power_down;
- }
+ if (IS_ERR(drm))
+ return PTR_ERR(drm);
- device->gpu = gpu;
- gpu->gpu_speedo = tegra_sku_info.gpu_speedo_value;
-
- err = drm_dev_register(drm, 0);
- if (err < 0)
- goto err_unref;
+ ret = drm_dev_register(drm, 0);
+ if (ret < 0) {
+ drm_dev_unref(drm);
+ return ret;
+ }
return 0;
-
-err_unref:
- drm_dev_unref(drm);
-
-power_down:
- nouveau_platform_power_down(gpu);
- nouveau_platform_remove_iommu(&pdev->dev, gpu);
-
- return err;
}
static int nouveau_platform_remove(struct platform_device *pdev)
{
- struct drm_device *drm_dev = platform_get_drvdata(pdev);
- struct nouveau_drm *drm = nouveau_drm(drm_dev);
- struct nvkm_device *device = nvxx_device(&drm->device);
- struct nouveau_platform_gpu *gpu = device->gpu;
- int err;
-
- nouveau_drm_device_remove(drm_dev);
-
- err = nouveau_platform_power_down(gpu);
-
- nouveau_platform_remove_iommu(&pdev->dev, gpu);
-
- return err;
+ struct drm_device *dev = platform_get_drvdata(pdev);
+ nouveau_drm_device_remove(dev);
+ return 0;
}
#if IS_ENABLED(CONFIG_OF)
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
-
#ifndef __NOUVEAU_PLATFORM_H__
#define __NOUVEAU_PLATFORM_H__
-
-#include "core/device.h"
-#include "core/mm.h"
-
-struct reset_control;
-struct clk;
-struct regulator;
-struct iommu_domain;
-struct platform_driver;
-
-struct nouveau_platform_gpu {
- struct reset_control *rst;
- struct clk *clk;
- struct clk *clk_pwr;
-
- struct regulator *vdd;
-
- struct {
- /*
- * Protects accesses to mm from subsystems
- */
- struct mutex mutex;
-
- struct nvkm_mm _mm;
- /*
- * Just points to _mm. We need this to avoid embedding
- * struct nvkm_mm in os.h
- */
- struct nvkm_mm *mm;
- struct iommu_domain *domain;
- unsigned long pgshift;
- } iommu;
-
- int gpu_speedo;
-};
+#include "nouveau_drm.h"
extern struct platform_driver nouveau_platform_driver;
#endif
/*
- * Copyright 2015 Red Hat Inc.
+ * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (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.
- *
- * Authors: Ben Skeggs <bskeggs@redhat.com>
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 <core/tegra.h>
#ifdef CONFIG_NOUVEAU_PLATFORM_DRIVER
#include "priv.h"
+static int
+nvkm_device_tegra_power_up(struct nvkm_device_tegra *tdev)
+{
+ int ret;
+
+ ret = regulator_enable(tdev->vdd);
+ if (ret)
+ goto err_power;
+
+ ret = clk_prepare_enable(tdev->clk);
+ if (ret)
+ goto err_clk;
+ ret = clk_prepare_enable(tdev->clk_pwr);
+ if (ret)
+ goto err_clk_pwr;
+ clk_set_rate(tdev->clk_pwr, 204000000);
+ udelay(10);
+
+ reset_control_assert(tdev->rst);
+ udelay(10);
+
+ ret = tegra_powergate_remove_clamping(TEGRA_POWERGATE_3D);
+ if (ret)
+ goto err_clamp;
+ udelay(10);
+
+ reset_control_deassert(tdev->rst);
+ udelay(10);
+
+ return 0;
+
+err_clamp:
+ clk_disable_unprepare(tdev->clk_pwr);
+err_clk_pwr:
+ clk_disable_unprepare(tdev->clk);
+err_clk:
+ regulator_disable(tdev->vdd);
+err_power:
+ return ret;
+}
+
+static int
+nvkm_device_tegra_power_down(struct nvkm_device_tegra *tdev)
+{
+ reset_control_assert(tdev->rst);
+ udelay(10);
+
+ clk_disable_unprepare(tdev->clk_pwr);
+ clk_disable_unprepare(tdev->clk);
+ udelay(10);
+
+ return regulator_disable(tdev->vdd);
+}
+
+static void
+nvkm_device_tegra_probe_iommu(struct nvkm_device_tegra *tdev)
+{
+#if IS_ENABLED(CONFIG_IOMMU_API)
+ struct device *dev = &tdev->pdev->dev;
+ unsigned long pgsize_bitmap;
+ int ret;
+
+ mutex_init(&tdev->iommu.mutex);
+
+ if (iommu_present(&platform_bus_type)) {
+ tdev->iommu.domain = iommu_domain_alloc(&platform_bus_type);
+ if (IS_ERR(tdev->iommu.domain))
+ goto error;
+
+ /*
+ * A IOMMU is only usable if it supports page sizes smaller
+ * or equal to the system's PAGE_SIZE, with a preference if
+ * both are equal.
+ */
+ pgsize_bitmap = tdev->iommu.domain->ops->pgsize_bitmap;
+ if (pgsize_bitmap & PAGE_SIZE) {
+ tdev->iommu.pgshift = PAGE_SHIFT;
+ } else {
+ tdev->iommu.pgshift = fls(pgsize_bitmap & ~PAGE_MASK);
+ if (tdev->iommu.pgshift == 0) {
+ dev_warn(dev, "unsupported IOMMU page size\n");
+ goto free_domain;
+ }
+ tdev->iommu.pgshift -= 1;
+ }
+
+ ret = iommu_attach_device(tdev->iommu.domain, dev);
+ if (ret)
+ goto free_domain;
+
+ ret = nvkm_mm_init(&tdev->iommu.mm, 0,
+ (1ULL << 40) >> tdev->iommu.pgshift, 1);
+ if (ret)
+ goto detach_device;
+ }
+
+ return;
+
+detach_device:
+ iommu_detach_device(tdev->iommu.domain, dev);
+
+free_domain:
+ iommu_domain_free(tdev->iommu.domain);
+
+error:
+ tdev->iommu.domain = NULL;
+ tdev->iommu.pgshift = 0;
+ dev_err(dev, "cannot initialize IOMMU MM\n");
+#endif
+}
+
+static void
+nvkm_device_tegra_remove_iommu(struct nvkm_device_tegra *tdev)
+{
+#if IS_ENABLED(CONFIG_IOMMU_API)
+ if (tdev->iommu.domain) {
+ nvkm_mm_fini(&tdev->iommu.mm);
+ iommu_detach_device(tdev->iommu.domain, tdev->device.dev);
+ iommu_domain_free(tdev->iommu.domain);
+ }
+#endif
+}
+
static struct nvkm_device_tegra *
nvkm_device_tegra(struct nvkm_device *device)
{
return 0;
}
+static void *
+nvkm_device_tegra_dtor(struct nvkm_device *device)
+{
+ struct nvkm_device_tegra *tdev = nvkm_device_tegra(device);
+ nvkm_device_tegra_power_down(tdev);
+ nvkm_device_tegra_remove_iommu(tdev);
+ return tdev;
+}
+
static const struct nvkm_device_func
nvkm_device_tegra_func = {
.tegra = nvkm_device_tegra,
+ .dtor = nvkm_device_tegra_dtor,
.init = nvkm_device_tegra_init,
.fini = nvkm_device_tegra_fini,
.resource_addr = nvkm_device_tegra_resource_addr,
struct nvkm_device **pdevice)
{
struct nvkm_device_tegra *tdev;
+ int ret;
if (!(tdev = kzalloc(sizeof(*tdev), GFP_KERNEL)))
return -ENOMEM;
tdev->pdev = pdev;
tdev->irq = -1;
- return nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
- NVKM_DEVICE_TEGRA, pdev->id, NULL,
- cfg, dbg, detect, mmio, subdev_mask,
- &tdev->device);
+ tdev->vdd = devm_regulator_get(&pdev->dev, "vdd");
+ if (IS_ERR(tdev->vdd))
+ return PTR_ERR(tdev->vdd);
+
+ tdev->rst = devm_reset_control_get(&pdev->dev, "gpu");
+ if (IS_ERR(tdev->rst))
+ return PTR_ERR(tdev->rst);
+
+ tdev->clk = devm_clk_get(&pdev->dev, "gpu");
+ if (IS_ERR(tdev->clk))
+ return PTR_ERR(tdev->clk);
+
+ tdev->clk_pwr = devm_clk_get(&pdev->dev, "pwr");
+ if (IS_ERR(tdev->clk_pwr))
+ return PTR_ERR(tdev->clk_pwr);
+
+ nvkm_device_tegra_probe_iommu(tdev);
+
+ ret = nvkm_device_tegra_power_up(tdev);
+ if (ret)
+ return ret;
+
+ tdev->gpu_speedo = tegra_sku_info.gpu_speedo_value;
+ ret = nvkm_device_ctor(&nvkm_device_tegra_func, NULL, &pdev->dev,
+ NVKM_DEVICE_TEGRA, pdev->id, NULL,
+ cfg, dbg, detect, mmio, subdev_mask,
+ &tdev->device);
+ if (ret)
+ return ret;
+
+ return 0;
}
#else
int
#define gk20a_clk(p) container_of((p), struct gk20a_clk, base)
#include "priv.h"
+#include <core/tegra.h>
#include <subdev/timer.h>
-#ifdef __KERNEL__
-#include <nouveau_platform.h>
-#endif
-
#define MHZ (1000 * 1000)
#define MASK(w) ((1 << w) - 1)
int
gk20a_clk_new(struct nvkm_device *device, int index, struct nvkm_clk **pclk)
{
+ struct nvkm_device_tegra *tdev = device->func->tegra(device);
struct gk20a_clk *clk;
int ret, i;
}
clk->params = &gk20a_pllg_params;
- clk->parent_rate = clk_get_rate(device->gpu->clk);
+ clk->parent_rate = clk_get_rate(tdev->clk);
ret = nvkm_clk_ctor(&gk20a_clk, device, index, true, &clk->base);
nvkm_info(&clk->base.subdev, "parent clock rate: %d Mhz\n",
#include <core/memory.h>
#include <core/mm.h>
+#include <core/tegra.h>
#include <subdev/fb.h>
-#ifdef __KERNEL__
-#include <linux/dma-attrs.h>
-#include <linux/iommu.h>
-#include <nouveau_platform.h>
-#endif
-
#define gk20a_instobj(p) container_of((p), struct gk20a_instobj, memory)
struct gk20a_instobj {
int
gk20a_instmem_new(struct nvkm_device *device, int index,
- struct nvkm_instmem **pimem)
+ struct nvkm_instmem **pimem)
{
+ struct nvkm_device_tegra *tdev = device->func->tegra(device);
struct gk20a_instmem *imem;
if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL)))
spin_lock_init(&imem->lock);
*pimem = &imem->base;
- if (device->gpu->iommu.domain) {
- imem->domain = device->gpu->iommu.domain;
- imem->mm = device->gpu->iommu.mm;
- imem->iommu_pgshift = device->gpu->iommu.pgshift;
- imem->mm_mutex = &device->gpu->iommu.mutex;
+ if (tdev->iommu.domain) {
+ imem->domain = tdev->iommu.domain;
+ imem->mm = &tdev->iommu.mm;
+ imem->iommu_pgshift = tdev->iommu.pgshift;
+ imem->mm_mutex = &tdev->iommu.mutex;
nvkm_info(&imem->base.subdev, "using IOMMU\n");
} else {
#define gk20a_volt(p) container_of((p), struct gk20a_volt, base)
#include "priv.h"
-#ifdef __KERNEL__
-#include <nouveau_platform.h>
-#endif
+#include <core/tegra.h>
struct cvb_coef {
int c0;
int
gk20a_volt_new(struct nvkm_device *device, int index, struct nvkm_volt **pvolt)
{
+ struct nvkm_device_tegra *tdev = device->func->tegra(device);
struct gk20a_volt *volt;
int i, uv;
nvkm_volt_ctor(&gk20a_volt, device, index, &volt->base);
*pvolt = &volt->base;
- uv = regulator_get_voltage(device->gpu->vdd);
+ uv = regulator_get_voltage(tdev->vdd);
nvkm_info(&volt->base.subdev, "The default voltage is %duV\n", uv);
- volt->vdd = device->gpu->vdd;
+ volt->vdd = tdev->vdd;
volt->base.vid_nr = ARRAY_SIZE(gk20a_cvb_coef);
nvkm_debug(&volt->base.subdev, "%s - vid_nr = %d\n", __func__,
volt->base.vid[i].vid = i;
volt->base.vid[i].uv =
gk20a_volt_calc_voltage(&gk20a_cvb_coef[i],
- device->gpu->gpu_speedo);
+ tdev->gpu_speedo);
nvkm_debug(&volt->base.subdev, "%2d: vid=%d, uv=%d\n", i,
volt->base.vid[i].vid, volt->base.vid[i].uv);
}
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