From: Daniel Vetter <daniel.vetter@ffwll.ch>
To: Intel Graphics Development <intel-gfx@lists.freedesktop.org>
Cc: David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
DRI Development <dri-devel@lists.freedesktop.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Daniel Vetter <daniel.vetter@intel.com>
Subject: [PATCH v3 3/4] drm/shmem-helper: Align to page size in dumb_create
Date: Thu, 3 Jun 2021 18:41:12 +0200 [thread overview]
Message-ID: <20210603164113.1433476-4-daniel.vetter@ffwll.ch> (raw)
In-Reply-To: <20210603164113.1433476-1-daniel.vetter@ffwll.ch>
shmem helpers seem a bit sloppy here by automatically rounding up when
actually creating the buffer, which results in under-reporting of what
we actually have. Caught by igt/vgem_basic tests.
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
---
drivers/gpu/drm/drm_gem_shmem_helper.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c
index 11edd54f0580..296ab1b7c07f 100644
--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -505,13 +505,13 @@ int drm_gem_shmem_dumb_create(struct drm_file *file, struct drm_device *dev,
if (!args->pitch || !args->size) {
args->pitch = min_pitch;
- args->size = args->pitch * args->height;
+ args->size = PAGE_ALIGN(args->pitch * args->height);
} else {
/* ensure sane minimum values */
if (args->pitch < min_pitch)
args->pitch = min_pitch;
if (args->size < args->pitch * args->height)
- args->size = args->pitch * args->height;
+ args->size = PAGE_ALIGN(args->pitch * args->height);
}
shmem = drm_gem_shmem_create_with_handle(file, dev, args->size, &args->handle);
--
2.31.0
next prev parent reply other threads:[~2021-06-03 16:41 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-03 16:41 [PATCH v3 0/4] shmem helpers for vgem Daniel Vetter
2021-06-03 16:41 ` [PATCH v3 1/4] dma-buf: Require VM_PFNMAP vma for mmap Daniel Vetter
2021-06-03 16:41 ` [PATCH v3 2/4] drm/shmem-helper: Switch to vmf_insert_pfn Daniel Vetter
2021-06-03 21:08 ` [PATCH] " Daniel Vetter
2021-07-13 13:44 ` Daniel Vetter
2021-06-03 16:41 ` Daniel Vetter [this message]
2021-06-03 16:41 ` [PATCH v3 4/4] drm/vgem: use shmem helpers Daniel Vetter
2021-06-03 21:09 ` [PATCH] " Daniel Vetter
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