search for: is_rproc_serial

...include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,52 @@ static bool is_console_port(struct port *port) return false; } +#if IS_ENABLED(CONFIG_REMOTEPROC) +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static inline void * +alloc_databuf(struct virtio...

...include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,52 @@ static bool is_console_port(struct port *port) return false; } +#if IS_ENABLED(CONFIG_REMOTEPROC) +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static inline void * +alloc_databuf(struct virtio...

...fers, so the correct dma-address can be passed to dma_free_coherent(). - Added pending_free_list for port_buf. dma_free_coherent() requires the irqs to be enabled, so if irqs are disabled we queue the buffer on the pending_free_list and free it later when irqs are enabled. - Remove #if around is_rproc_serial Thanks, Sjur drivers/char/virtio_console.c | 222 ++++++++++++++++++++++++++++++++++++----- include/linux/virtio_ids.h | 1 + 2 files changed, 199 insertions(+), 24 deletions(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index cdf2f54..3af9a5d 100644 --- a...

...fers, so the correct dma-address can be passed to dma_free_coherent(). - Added pending_free_list for port_buf. dma_free_coherent() requires the irqs to be enabled, so if irqs are disabled we queue the buffer on the pending_free_list and free it later when irqs are enabled. - Remove #if around is_rproc_serial Thanks, Sjur drivers/char/virtio_console.c | 222 ++++++++++++++++++++++++++++++++++++----- include/linux/virtio_ids.h | 1 + 2 files changed, 199 insertions(+), 24 deletions(-) diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index cdf2f54..3af9a5d 100644 --- a...

...> #include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,55 @@ static bool is_console_port(struct port *port) return false; } +#if IS_ENABLED(CONFIG_REMOTEPROC) +static bool is_rproc_serial(const struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static bool is_rproc_serial(const struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static void *alloc_databuf(struct virtio_dev...

...> #include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,55 @@ static bool is_console_port(struct port *port) return false; } +#if IS_ENABLED(CONFIG_REMOTEPROC) +static bool is_rproc_serial(const struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static bool is_rproc_serial(const struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static void *alloc_databuf(struct virtio_dev...

...#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,52 @@ static bool is_console_port(struct port *port) return false; } +#ifdef CONFIG_REMOTEPROC_MODULE +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static inline void * +alloc_databuf(struct virtio...

...#include <linux/module.h> +#include <linux/dma-mapping.h> +#include <linux/kconfig.h> #include "../tty/hvc/hvc_console.h" /* @@ -323,6 +325,52 @@ static bool is_console_port(struct port *port) return false; } +#ifdef CONFIG_REMOTEPROC_MODULE +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return vdev->id.device == VIRTIO_ID_RPROC_SERIAL; +} +#else +static inline bool is_rproc_serial(struct virtio_device *vdev) +{ + return false; +} +#endif + +/* Allocate data buffer from DMA memory if requested */ +static inline void * +alloc_databuf(struct virtio...

...+static struct port_buffer *alloc_buf(struct virtio_device *vdev, size_t buf_size, > int pages) > { > struct port_buffer *buf; > @@ -445,16 +445,16 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, > return buf; > } > > - if (is_rproc_serial(vq->vdev)) { > + if (is_rproc_serial(vdev)) { > /* > * Allocate DMA memory from ancestor. When a virtio > * device is created by remoteproc, the DMA memory is > * associated with the grandparent device: > * vdev => rproc => platform-dev. > */ &gt...

...+static struct port_buffer *alloc_buf(struct virtio_device *vdev, size_t buf_size, > int pages) > { > struct port_buffer *buf; > @@ -445,16 +445,16 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size, > return buf; > } > > - if (is_rproc_serial(vq->vdev)) { > + if (is_rproc_serial(vdev)) { > /* > * Allocate DMA memory from ancestor. When a virtio > * device is created by remoteproc, the DMA memory is > * associated with the grandparent device: > * vdev => rproc => platform-dev. > */ &gt...

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces a new virtio type "rproc_serial" for communicating with remote processors over shared memory. The driver depends on the the remoteproc framework. As preparation for introducing "rproc_serial" I've done a refactoring of the transmit buffer handling. This patch-set is a rework of the

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces a new virtio type "rproc_serial" for communicating with remote processors over shared memory. The driver depends on the the remoteproc framework. As preparation for introducing "rproc_serial" I've done a refactoring of the transmit buffer handling. This patch-set is a rework of the

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> I thought rebasing rproc_serial to linux-next was going to be trivial. But when starting the merge I realized that I had to refactor the the patches from Masami Hiramatsu. The splice support has the same issue as I faced, with different type of buffers in the out_vq. So I ended up refactoring the splice functionality. The code size

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> I thought rebasing rproc_serial to linux-next was going to be trivial. But when starting the merge I realized that I had to refactor the the patches from Masami Hiramatsu. The splice support has the same issue as I faced, with different type of buffers in the out_vq. So I ended up refactoring the splice functionality. The code size

Hello! I note the following in the serial console: if (is_rproc_serial(vdev)) { /* * Allocate DMA memory from ancestor. When a virtio * device is created by remoteproc, the DMA memory is * associated with the grandparent device: * vdev => rproc => platform-dev. *...

Hello! I note the following in the serial console: if (is_rproc_serial(vdev)) { /* * Allocate DMA memory from ancestor. When a virtio * device is created by remoteproc, the DMA memory is * associated with the grandparent device: * vdev => rproc => platform-dev. *...

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces a new virtio type "rproc_serial" for communicating with remote processors over shared memory. The driver depends on the the remoteproc framework. As preparation for introducing "rproc_serial" I've done a refactoring of the transmit buffer handling. Changes since v7: - Rebased to

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> This patch-set introduces a new virtio type "rproc_serial" for communicating with remote processors over shared memory. The driver depends on the the remoteproc framework. As preparation for introducing "rproc_serial" I've done a refactoring of the transmit buffer handling. Changes since v7: - Rebased to

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> Add feature VIRTIO_CONSOLE_F_DMA_MEM. If the architecture has DMA support and this feature bit is set, the virtio data buffers will be allocated from DMA memory. If the device requests the feature VIRTIO_CONSOLE_F_DMA_MEM, but the architecture don't support DMA the driver's probe function will fail. This is needed for using

From: Sjur Br?ndeland <sjur.brandeland at stericsson.com> Add feature VIRTIO_CONSOLE_F_DMA_MEM. If the architecture has DMA support and this feature bit is set, the virtio data buffers will be allocated from DMA memory. If the device requests the feature VIRTIO_CONSOLE_F_DMA_MEM, but the architecture don't support DMA the driver's probe function will fail. This is needed for using