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From: "Thomas Hellström (VMware)" <thomas_os@shipmail.org>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
	dri-devel@lists.freedesktop.org
Cc: pv-drivers@vmware.com, linux-graphics-maintainer@vmware.com,
	"Thomas Hellstrom" <thellstrom@vmware.com>,
	"Andrew Morton" <akpm@linux-foundation.org>,
	"Michal Hocko" <mhocko@suse.com>,
	"Matthew Wilcox (Oracle)" <willy@infradead.org>,
	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
	"Ralph Campbell" <rcampbell@nvidia.com>,
	"Jérôme Glisse" <jglisse@redhat.com>,
	"Christian König" <christian.koenig@amd.com>
Subject: [PATCH 8/8] drm/vmwgfx: Hook up the helpers to align buffer objects
Date: Tue,  3 Dec 2019 14:22:39 +0100
Message-ID: <20191203132239.5910-9-thomas_os@shipmail.org> (raw)
In-Reply-To: <20191203132239.5910-1-thomas_os@shipmail.org>

From: Thomas Hellstrom <thellstrom@vmware.com>

Start using the helpers that align buffer object user-space addresses and
buffer object vram addresses to huge page boundaries.
This is to improve the chances of allowing huge page-table entries.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: "Jérôme Glisse" <jglisse@redhat.com>
Cc: "Christian König" <christian.koenig@amd.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c        | 13 +++++++++++++
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.h        |  1 +
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c |  2 +-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index e962048f65d2..5452cabb4a2e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1215,6 +1215,18 @@ static void vmw_remove(struct pci_dev *pdev)
 	drm_put_dev(dev);
 }
 
+static unsigned long
+vmw_get_unmapped_area(struct file *file, unsigned long uaddr,
+		      unsigned long len, unsigned long pgoff,
+		      unsigned long flags)
+{
+	struct drm_file *file_priv = file->private_data;
+	struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
+
+	return drm_get_unmapped_area(file, uaddr, len, pgoff, flags,
+				     &dev_priv->vma_manager);
+}
+
 static int vmwgfx_pm_notifier(struct notifier_block *nb, unsigned long val,
 			      void *ptr)
 {
@@ -1386,6 +1398,7 @@ static const struct file_operations vmwgfx_driver_fops = {
 	.compat_ioctl = vmw_compat_ioctl,
 #endif
 	.llseek = noop_llseek,
+	.get_unmapped_area = vmw_get_unmapped_area,
 };
 
 static struct drm_driver driver = {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index 8656a97448c3..9b3a5d940024 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -929,6 +929,7 @@ extern int vmw_mmap(struct file *filp, struct vm_area_struct *vma);
 
 extern void vmw_validation_mem_init_ttm(struct vmw_private *dev_priv,
 					size_t gran);
+
 /**
  * TTM buffer object driver - vmwgfx_ttm_buffer.c
  */
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index d8ea3dd10af0..c319fe0ca912 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -754,7 +754,7 @@ static int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 		break;
 	case TTM_PL_VRAM:
 		/* "On-card" video ram */
-		man->func = &ttm_bo_manager_func;
+		man->func = &ttm_bo_manager_huge_func;
 		man->gpu_offset = 0;
 		man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
 		man->available_caching = TTM_PL_FLAG_CACHED;
-- 
2.21.0



      parent reply index

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-03 13:22 [PATCH 0/8] Huge page-table entries for TTM Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 1/8] mm: Introduce vma_is_special_huge Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 2/8] mm: Split huge pages on write-notify or COW Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 3/8] mm: Add vmf_insert_pfn_xxx_prot() for huge page-table entries Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 4/8] drm/ttm, drm/vmwgfx: Support huge TTM pagefaults Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 5/8] drm/vmwgfx: Support huge page faults Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 6/8] drm: Add a drm_get_unmapped_area() helper Thomas Hellström (VMware)
2019-12-04 11:11   ` Christian König
2019-12-04 11:36     ` Thomas Hellström (VMware)
2019-12-04 12:08       ` Christian König
2019-12-04 12:32         ` Thomas Hellström (VMware)
2019-12-04 14:40           ` Christian König
2019-12-04 15:36             ` Thomas Hellström (VMware)
2019-12-03 13:22 ` [PATCH 7/8] drm/ttm: Introduce a huge page aligning TTM range manager Thomas Hellström (VMware)
2019-12-04 11:13   ` Christian König
2019-12-04 11:45     ` Thomas Hellström (VMware)
2019-12-04 12:16       ` Christian König
2019-12-04 13:18         ` Thomas Hellström (VMware)
2019-12-04 14:02           ` Christian König
2019-12-03 13:22 ` Thomas Hellström (VMware) [this message]

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