From: Gerd Hoffmann <kraxel@redhat.com>
To: dri-devel@lists.freedesktop.org
Cc: Gerd Hoffmann <kraxel@redhat.com>,
Dave Airlie <airlied@redhat.com>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
virtualization@lists.linux-foundation.org (open list:DRM DRIVER
FOR QXL VIRTUAL GPU),
spice-devel@lists.freedesktop.org (open list:DRM DRIVER FOR QXL
VIRTUAL GPU), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v2 06/11] drm/qxl: add qxl_bo_vmap/qxl_bo_vunmap
Date: Wed, 17 Feb 2021 13:32:08 +0100 [thread overview]
Message-ID: <20210217123213.2199186-7-kraxel@redhat.com> (raw)
In-Reply-To: <20210217123213.2199186-1-kraxel@redhat.com>
Add vmap/vunmap variants which reserve (and pin) the bo.
They can be used in case the caller doesn't hold a reservation
for the bo.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/qxl/qxl_object.h | 2 ++
drivers/gpu/drm/qxl/qxl_object.c | 36 ++++++++++++++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/drivers/gpu/drm/qxl/qxl_object.h b/drivers/gpu/drm/qxl/qxl_object.h
index 2495e5cdf353..ee9c29de4d3d 100644
--- a/drivers/gpu/drm/qxl/qxl_object.h
+++ b/drivers/gpu/drm/qxl/qxl_object.h
@@ -64,7 +64,9 @@ extern int qxl_bo_create(struct qxl_device *qdev,
u32 priority,
struct qxl_surface *surf,
struct qxl_bo **bo_ptr);
+int qxl_bo_vmap(struct qxl_bo *bo, struct dma_buf_map *map);
int qxl_bo_vmap_locked(struct qxl_bo *bo, struct dma_buf_map *map);
+int qxl_bo_vunmap(struct qxl_bo *bo);
void qxl_bo_vunmap_locked(struct qxl_bo *bo);
void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);
diff --git a/drivers/gpu/drm/qxl/qxl_object.c b/drivers/gpu/drm/qxl/qxl_object.c
index f4a015381a7f..82c3bf195ad6 100644
--- a/drivers/gpu/drm/qxl/qxl_object.c
+++ b/drivers/gpu/drm/qxl/qxl_object.c
@@ -29,6 +29,9 @@
#include "qxl_drv.h"
#include "qxl_object.h"
+static int __qxl_bo_pin(struct qxl_bo *bo);
+static void __qxl_bo_unpin(struct qxl_bo *bo);
+
static void qxl_ttm_bo_destroy(struct ttm_buffer_object *tbo)
{
struct qxl_bo *bo;
@@ -179,6 +182,25 @@ int qxl_bo_vmap_locked(struct qxl_bo *bo, struct dma_buf_map *map)
return 0;
}
+int qxl_bo_vmap(struct qxl_bo *bo, struct dma_buf_map *map)
+{
+ int r;
+
+ r = qxl_bo_reserve(bo);
+ if (r)
+ return r;
+
+ r = __qxl_bo_pin(bo);
+ if (r) {
+ qxl_bo_unreserve(bo);
+ return r;
+ }
+
+ r = qxl_bo_vmap_locked(bo, map);
+ qxl_bo_unreserve(bo);
+ return r;
+}
+
void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev,
struct qxl_bo *bo, int page_offset)
{
@@ -223,6 +245,20 @@ void qxl_bo_vunmap_locked(struct qxl_bo *bo)
ttm_bo_vunmap(&bo->tbo, &bo->map);
}
+int qxl_bo_vunmap(struct qxl_bo *bo)
+{
+ int r;
+
+ r = qxl_bo_reserve(bo);
+ if (r)
+ return r;
+
+ qxl_bo_vunmap_locked(bo);
+ __qxl_bo_unpin(bo);
+ qxl_bo_unreserve(bo);
+ return 0;
+}
+
void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev,
struct qxl_bo *bo, void *pmap)
{
--
2.29.2
next prev parent reply other threads:[~2021-02-17 12:35 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210217123213.2199186-1-kraxel@redhat.com>
2021-02-17 12:32 ` [PATCH v2 01/11] drm/qxl: properly handle device init failures Gerd Hoffmann
2021-02-17 12:32 ` [PATCH v2 02/11] drm/qxl: more fence wait rework Gerd Hoffmann
2021-02-17 19:21 ` Thomas Zimmermann
2021-02-17 12:32 ` [PATCH v2 03/11] drm/qxl: use ttm bo priorities Gerd Hoffmann
2021-02-17 19:22 ` Thomas Zimmermann
2021-02-17 12:32 ` [PATCH v2 04/11] drm/qxl: fix lockdep issue in qxl_alloc_release_reserved Gerd Hoffmann
2021-02-17 19:23 ` Thomas Zimmermann
2021-02-17 12:32 ` [PATCH v2 05/11] drm/qxl: rename qxl_bo_kmap -> qxl_bo_vmap_locked Gerd Hoffmann
2021-02-17 19:24 ` Thomas Zimmermann
2021-02-17 12:32 ` Gerd Hoffmann [this message]
2021-02-17 19:24 ` [PATCH v2 06/11] drm/qxl: add qxl_bo_vmap/qxl_bo_vunmap Thomas Zimmermann
2021-02-17 12:32 ` [PATCH v2 07/11] drm/qxl: fix prime vmap Gerd Hoffmann
2021-02-17 12:32 ` [PATCH v2 08/11] drm/qxl: fix monitors object vmap Gerd Hoffmann
2021-02-18 14:42 ` Thomas Zimmermann
2021-02-17 12:32 ` [PATCH v2 09/11] drm/qxl: move shadow handling to new qxl_prepare_shadow() Gerd Hoffmann
2021-02-17 12:32 ` [PATCH v2 10/11] drm/qxl: rework cursor plane Gerd Hoffmann
2021-02-18 8:02 ` Thomas Zimmermann
2021-02-18 11:50 ` Gerd Hoffmann
2021-02-18 13:33 ` Thomas Zimmermann
2021-02-18 14:23 ` Gerd Hoffmann
2021-02-17 12:32 ` [PATCH v2 11/11] drm/qxl: add lock asserts to qxl_bo_vmap_locked + qxl_bo_vunmap_locked Gerd Hoffmann
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