1 files changed, 86 insertions, 80 deletions

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 44ca803237a5..54ceae87b401 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -6,7 +6,9 @@
 #include <linux/component.h>
 #include <linux/dma-mapping.h>
 #include <linux/module.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
 #include <linux/uaccess.h>
 
 #include <drm/drm_debugfs.h>
@@ -15,6 +17,7 @@
 #include <drm/drm_ioctl.h>
 #include <drm/drm_of.h>
 #include <drm/drm_prime.h>
+#include <drm/drm_print.h>
 
 #include "etnaviv_cmdbuf.h"
 #include "etnaviv_drv.h"
@@ -22,12 +25,22 @@
 #include "etnaviv_gem.h"
 #include "etnaviv_mmu.h"
 #include "etnaviv_perfmon.h"
-#include "common.xml.h"
 
 /*
  * DRM operations:
  */
 
+static struct device_node *etnaviv_of_first_available_node(void)
+{
+	struct device_node *np;
+
+	for_each_compatible_node(np, NULL, "vivante,gc") {
+		if (of_device_is_available(np))
+			return np;
+	}
+
+	return NULL;
+}
 
 static void load_gpu(struct drm_device *dev)
 {
@@ -78,7 +91,7 @@ static int etnaviv_open(struct drm_device *dev, struct drm_file *file)
 			drm_sched_entity_init(&ctx->sched_entity[i],
 					      DRM_SCHED_PRIORITY_NORMAL, &sched,
 					      1, NULL);
-			}
+		}
 	}
 
 	file->driver_priv = ctx;
@@ -232,11 +245,11 @@ static int show_each_gpu(struct seq_file *m, void *arg)
 }
 
 static struct drm_info_list etnaviv_debugfs_list[] = {
-		{"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs},
-		{"gem", show_unlocked, 0, etnaviv_gem_show},
-		{ "mm", show_unlocked, 0, etnaviv_mm_show },
-		{"mmu", show_each_gpu, 0, etnaviv_mmu_show},
-		{"ring", show_each_gpu, 0, etnaviv_ring_show},
+	{"gpu", show_each_gpu, 0, etnaviv_gpu_debugfs},
+	{"gem", show_unlocked, 0, etnaviv_gem_show},
+	{ "mm", show_unlocked, 0, etnaviv_mm_show },
+	{"mmu", show_each_gpu, 0, etnaviv_mmu_show},
+	{"ring", show_each_gpu, 0, etnaviv_ring_show},
 };
 
 static void etnaviv_debugfs_init(struct drm_minor *minor)
@@ -476,67 +489,33 @@ static const struct drm_ioctl_desc etnaviv_ioctls[] = {
 	ETNA_IOCTL(PM_QUERY_SIG, pm_query_sig, DRM_RENDER_ALLOW),
 };
 
-static void etnaviv_fop_show_fdinfo(struct seq_file *m, struct file *f)
+static void etnaviv_show_fdinfo(struct drm_printer *p, struct drm_file *file)
 {
-	struct drm_file *file = f->private_data;
-	struct drm_device *dev = file->minor->dev;
-	struct etnaviv_drm_private *priv = dev->dev_private;
-	struct etnaviv_file_private *ctx = file->driver_priv;
-
-	/*
-	 * For a description of the text output format used here, see
-	 * Documentation/gpu/drm-usage-stats.rst.
-	 */
-	seq_printf(m, "drm-driver:\t%s\n", dev->driver->name);
-	seq_printf(m, "drm-client-id:\t%u\n", ctx->id);
-
-	for (int i = 0; i < ETNA_MAX_PIPES; i++) {
-		struct etnaviv_gpu *gpu = priv->gpu[i];
-		char engine[10] = "UNK";
-		int cur = 0;
-
-		if (!gpu)
-			continue;
-
-		if (gpu->identity.features & chipFeatures_PIPE_2D)
-			cur = snprintf(engine, sizeof(engine), "2D");
-		if (gpu->identity.features & chipFeatures_PIPE_3D)
-			cur = snprintf(engine + cur, sizeof(engine) - cur,
-				       "%s3D", cur ? "/" : "");
-		if (gpu->identity.nn_core_count > 0)
-			cur = snprintf(engine + cur, sizeof(engine) - cur,
-				       "%sNN", cur ? "/" : "");
-
-		seq_printf(m, "drm-engine-%s:\t%llu ns\n", engine,
-			   ctx->sched_entity[i].elapsed_ns);
-	}
+	drm_show_memory_stats(p, file);
 }
 
 static const struct file_operations fops = {
 	.owner = THIS_MODULE,
 	DRM_GEM_FOPS,
-	.show_fdinfo = etnaviv_fop_show_fdinfo,
+	.show_fdinfo = drm_show_fdinfo,
 };
 
 static const struct drm_driver etnaviv_drm_driver = {
 	.driver_features    = DRIVER_GEM | DRIVER_RENDER,
 	.open               = etnaviv_open,
 	.postclose           = etnaviv_postclose,
-	.prime_handle_to_fd = drm_gem_prime_handle_to_fd,
-	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_import_sg_table = etnaviv_gem_prime_import_sg_table,
-	.gem_prime_mmap     = drm_gem_prime_mmap,
 #ifdef CONFIG_DEBUG_FS
 	.debugfs_init       = etnaviv_debugfs_init,
 #endif
+	.show_fdinfo        = etnaviv_show_fdinfo,
 	.ioctls             = etnaviv_ioctls,
 	.num_ioctls         = DRM_ETNAVIV_NUM_IOCTLS,
 	.fops               = &fops,
 	.name               = "etnaviv",
 	.desc               = "etnaviv DRM",
-	.date               = "20151214",
 	.major              = 1,
-	.minor              = 3,
+	.minor              = 4,
 };
 
 /*
@@ -569,6 +548,16 @@ static int etnaviv_bind(struct device *dev)
 	priv->num_gpus = 0;
 	priv->shm_gfp_mask = GFP_HIGHUSER | __GFP_RETRY_MAYFAIL | __GFP_NOWARN;
 
+	/*
+	 * If the GPU is part of a system with DMA addressing limitations,
+	 * request pages for our SHM backend buffers from the DMA32 zone to
+	 * hopefully avoid performance killing SWIOTLB bounce buffering.
+	 */
+	if (dma_addressing_limited(dev)) {
+		priv->shm_gfp_mask |= GFP_DMA32;
+		priv->shm_gfp_mask &= ~__GFP_HIGHMEM;
+	}
+
 	priv->cmdbuf_suballoc = etnaviv_cmdbuf_suballoc_new(drm->dev);
 	if (IS_ERR(priv->cmdbuf_suballoc)) {
 		dev_err(drm->dev, "Failed to create cmdbuf suballocator\n");
@@ -595,6 +584,7 @@ out_unbind:
 out_destroy_suballoc:
 	etnaviv_cmdbuf_suballoc_destroy(priv->cmdbuf_suballoc);
 out_free_priv:
+	mutex_destroy(&priv->gem_lock);
 	kfree(priv);
 out_put:
 	drm_dev_put(drm);
@@ -639,10 +629,7 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
 			if (!of_device_is_available(core_node))
 				continue;
 
-			if (!first_node)
-				first_node = core_node;
-
-			drm_of_component_match_add(&pdev->dev, &match,
+			drm_of_component_match_add(dev, &match,
 						   component_compare_of, core_node);
 		}
 	} else {
@@ -665,9 +652,9 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
 	 * bit to make sure we are allocating the command buffers and
 	 * TLBs in the lower 4 GiB address space.
 	 */
-	if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(40)) ||
-	    dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32))) {
-		dev_dbg(&pdev->dev, "No suitable DMA available\n");
+	if (dma_set_mask(dev, DMA_BIT_MASK(40)) ||
+	    dma_set_coherent_mask(dev, DMA_BIT_MASK(32))) {
+		dev_dbg(dev, "No suitable DMA available\n");
 		return -ENODEV;
 	}
 
@@ -676,17 +663,18 @@ static int etnaviv_pdev_probe(struct platform_device *pdev)
 	 * device as the GPU we found. This assumes that all Vivante
 	 * GPUs in the system share the same DMA constraints.
 	 */
-	if (first_node)
-		of_dma_configure(&pdev->dev, first_node, true);
+	first_node = etnaviv_of_first_available_node();
+	if (first_node) {
+		of_dma_configure(dev, first_node, true);
+		of_node_put(first_node);
+	}
 
 	return component_master_add_with_match(dev, &etnaviv_master_ops, match);
 }
 
-static int etnaviv_pdev_remove(struct platform_device *pdev)
+static void etnaviv_pdev_remove(struct platform_device *pdev)
 {
 	component_master_del(&pdev->dev, &etnaviv_master_ops);
-
-	return 0;
 }
 
 static struct platform_driver etnaviv_platform_driver = {
@@ -697,11 +685,43 @@ static struct platform_driver etnaviv_platform_driver = {
 	},
 };
 
+static int etnaviv_create_platform_device(const char *name,
+					  struct platform_device **ppdev)
+{
+	struct platform_device *pdev;
+	int ret;
+
+	pdev = platform_device_alloc(name, PLATFORM_DEVID_NONE);
+	if (!pdev)
+		return -ENOMEM;
+
+	ret = platform_device_add(pdev);
+	if (ret) {
+		platform_device_put(pdev);
+		return ret;
+	}
+
+	*ppdev = pdev;
+
+	return 0;
+}
+
+static void etnaviv_destroy_platform_device(struct platform_device **ppdev)
+{
+	struct platform_device *pdev = *ppdev;
+
+	if (!pdev)
+		return;
+
+	platform_device_unregister(pdev);
+
+	*ppdev = NULL;
+}
+
 static struct platform_device *etnaviv_drm;
 
 static int __init etnaviv_init(void)
 {
-	struct platform_device *pdev;
 	int ret;
 	struct device_node *np;
 
@@ -719,27 +739,13 @@ static int __init etnaviv_init(void)
 	 * If the DT contains at least one available GPU device, instantiate
 	 * the DRM platform device.
 	 */
-	for_each_compatible_node(np, NULL, "vivante,gc") {
-		if (!of_device_is_available(np))
-			continue;
-
-		pdev = platform_device_alloc("etnaviv", PLATFORM_DEVID_NONE);
-		if (!pdev) {
-			ret = -ENOMEM;
-			of_node_put(np);
-			goto unregister_platform_driver;
-		}
+	np = etnaviv_of_first_available_node();
+	if (np) {
+		of_node_put(np);
 
-		ret = platform_device_add(pdev);
-		if (ret) {
-			platform_device_put(pdev);
-			of_node_put(np);
+		ret = etnaviv_create_platform_device("etnaviv", &etnaviv_drm);
+		if (ret)
 			goto unregister_platform_driver;
-		}
-
-		etnaviv_drm = pdev;
-		of_node_put(np);
-		break;
 	}
 
 	return 0;
@@ -754,7 +760,7 @@ module_init(etnaviv_init);
 
 static void __exit etnaviv_exit(void)
 {
-	platform_device_unregister(etnaviv_drm);
+	etnaviv_destroy_platform_device(&etnaviv_drm);
 	platform_driver_unregister(&etnaviv_platform_driver);
 	platform_driver_unregister(&etnaviv_gpu_driver);
 }