diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2016-12-08 01:44:33 +0200 |
|---|---|---|
| committer | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2017-04-16 19:12:43 +0300 |
| commit | f3a478951ac576c69a5828d80ff23d02e0940b9e (patch) | |
| tree | 9341af022ea38c2f19100eb59e3243f0f9380424 /kms++/src | |
| parent | 5610b6440617246972105a93ca6a35c9ed045db4 (diff) | |
omap: Add support for cached GEM objects
OMAP buffers are mapped to userspace in write-combining mode by default.
Add support for cached mappings.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Diffstat (limited to 'kms++/src')
| -rw-r--r-- | kms++/src/omap/omapframebuffer.cpp | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/kms++/src/omap/omapframebuffer.cpp b/kms++/src/omap/omapframebuffer.cpp index 312552c..0c8489e 100644 --- a/kms++/src/omap/omapframebuffer.cpp +++ b/kms++/src/omap/omapframebuffer.cpp @@ -19,15 +19,15 @@ using namespace std; namespace kms { -OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, const string& fourcc) - : OmapFramebuffer(card, width, height, FourCCToPixelFormat(fourcc)) +OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, const string& fourcc, bool cached) + : OmapFramebuffer(card, width, height, FourCCToPixelFormat(fourcc), cached) { } -OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, PixelFormat format) +OmapFramebuffer::OmapFramebuffer(OmapCard& card, uint32_t width, uint32_t height, PixelFormat format, bool cached) : MappedFramebuffer(card, width, height), m_format(format) { - Create(); + Create(cached); } OmapFramebuffer::~OmapFramebuffer() @@ -35,7 +35,7 @@ OmapFramebuffer::~OmapFramebuffer() Destroy(); } -void OmapFramebuffer::Create() +void OmapFramebuffer::Create(bool cached) { const PixelFormatInfo& format_info = get_pixel_format_info(m_format); @@ -49,8 +49,9 @@ void OmapFramebuffer::Create() uint32_t size = stride * height(); struct drm_omap_gem_new creq = { .size = { .bytes = size }, - .flags = OMAP_BO_SCANOUT | OMAP_BO_WC, }; + creq.flags = (cached ? OMAP_BO_CACHED : OMAP_BO_WC) + | OMAP_BO_SCANOUT; int r = drmIoctl(card().fd(), DRM_IOCTL_OMAP_GEM_NEW, &creq); if (r) throw invalid_argument(string("DRM_IOCTL_OMAP_GEM_NEW failed: ") + strerror(errno)); |