search for: drm_client_buffer_delet

...; 2 files changed, 64 insertions(+), 10 deletions(-) > > diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c > index 410572f14257..d04660c4470a 100644 > --- a/drivers/gpu/drm/drm_client.c > +++ b/drivers/gpu/drm/drm_client.c > @@ -235,7 +235,8 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) > { > struct drm_device *dev = buffer->client->dev; > > - drm_gem_vunmap(buffer->gem, buffer->vaddr); > + if (buffer->vaddr) No need for this, drm_gem_vunmap() has a NULL check. > + drm_gem_vunmap(buffer->gem, buffer-&gt...

...de/drm/drm_client.h | 3 ++ 2 files changed, 64 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 410572f14257..d04660c4470a 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -235,7 +235,8 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) { struct drm_device *dev = buffer->client->dev; - drm_gem_vunmap(buffer->gem, buffer->vaddr); + if (buffer->vaddr) + drm_gem_vunmap(buffer->gem, buffer->vaddr); if (buffer->gem) drm_gem_object_put_unlocked(buffer->gem); @@ -...

...pu/drm/drm_client.c @@ -281,6 +281,43 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u buffer->gem = obj; + vaddr = drm_client_buffer_vmap(buffer); + if (IS_ERR(vaddr)) { + ret = PTR_ERR(vaddr); + goto err_delete; + } + + return buffer; + +err_delete: + drm_client_buffer_delete(buffer); + + return ERR_PTR(ret); +} + +/** + * drm_client_buffer_vmap - Map DRM client buffer into address space + * @buffer: DRM client buffer + * + * This function maps a client buffer into kernel address space. If the + * buffer is already mapped, it returns the mapping's address. + * + *...

...; 3 files changed, 38 insertions(+), 26 deletions(-) > > diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c > index ac0082bed966..fe573acf1067 100644 > --- a/drivers/gpu/drm/drm_client.c > +++ b/drivers/gpu/drm/drm_client.c > @@ -235,7 +235,7 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) > { > struct drm_device *dev = buffer->client->dev; > > - drm_gem_vunmap(buffer->gem, buffer->vaddr); > + drm_gem_vunmap(buffer->gem, &buffer->map); > > if (buffer->gem) > drm_gem_object_put(buffer->g...

DRM client buffers are permanently mapped throughout their lifetime. This prevents us from using generic framebuffer emulation for devices with small dedicated video memory, such as ast or mgag200. With fb buffers permanently mapped, such devices often won't have enougth space left to display other content (e.g., X11). This patch set introduces unmappable DRM client buffers for framebuffer

DRM client buffers are permanently mapped throughout their lifetime. This prevents us from using generic framebuffer emulation for devices with small dedicated video memory, such as ast or mgag200. With fb buffers permanently mapped, such devices often won't have enougth space left to display other content (e.g., X11). This patch set introduces unmappable DRM client buffers for framebuffer

...rm_client.h | 7 ++++--- 3 files changed, 38 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index ac0082bed966..fe573acf1067 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -235,7 +235,7 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) { struct drm_device *dev = buffer->client->dev; - drm_gem_vunmap(buffer->gem, buffer->vaddr); + drm_gem_vunmap(buffer->gem, &buffer->map); if (buffer->gem) drm_gem_object_put(buffer->gem); @@ -291,25 +291,31 @@ drm_client_bu...

...rm_client.h | 7 ++++--- 3 files changed, 38 insertions(+), 26 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index ac0082bed966..fe573acf1067 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -235,7 +235,7 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) { struct drm_device *dev = buffer->client->dev; - drm_gem_vunmap(buffer->gem, buffer->vaddr); + drm_gem_vunmap(buffer->gem, &buffer->map); if (buffer->gem) drm_gem_object_put(buffer->gem); @@ -291,25 +291,31 @@ drm_client_bu...

...rm_client.h | 7 ++++--- 3 files changed, 45 insertions(+), 28 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index ac0082bed966..fe573acf1067 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -235,7 +235,7 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) { struct drm_device *dev = buffer->client->dev; - drm_gem_vunmap(buffer->gem, buffer->vaddr); + drm_gem_vunmap(buffer->gem, &buffer->map); if (buffer->gem) drm_gem_object_put(buffer->gem); @@ -291,25 +291,31 @@ drm_client_bu...

...insertions(+), 26 deletions(-) >> >> diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c >> index ac0082bed966..fe573acf1067 100644 >> --- a/drivers/gpu/drm/drm_client.c >> +++ b/drivers/gpu/drm/drm_client.c >> @@ -235,7 +235,7 @@ static void drm_client_buffer_delete(struct drm_client_buffer *buffer) >> { >> struct drm_device *dev = buffer->client->dev; >> >> - drm_gem_vunmap(buffer->gem, buffer->vaddr); >> + drm_gem_vunmap(buffer->gem, &buffer->map); >> >> if (buffer->gem) >>...

DRM client buffers are permanently mapped throughout their lifetime. This prevents us from using generic framebuffer emulation for devices with small dedicated video memory, such as ast or mgag200. With fb buffers permanently mapped, such devices often won't have enough space left to display other content (e.g., X11). This patch set introduces unmappable DRM client buffers for framebuffer

DRM client buffers are permanently mapped throughout their lifetime. This prevents us from using generic framebuffer emulation for devices with small dedicated video memory, such as ast or mgag200. With fb buffers permanently mapped, such devices often won't have enough space left to display other content (e.g., X11). This patch set introduces unmappable DRM client buffers for framebuffer

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use

DRM's fbdev console uses regular load and store operations to update framebuffer memory. The bochs driver on sparc64 requires the use of I/O-specific load and store operations. We have a workaround, but need a long-term solution to the problem. This patchset changes GEM's vmap/vunmap interfaces to forward pointers of type struct dma_buf_map and updates the generic fbdev emulation to use