From: Sjur Brændeland <sjur.brandel...@stericsson.com> Changes since v2: - Addressed review comments - Reworked patch "Load firmware once".
This patch-set is not yet thoroughly tested, but works in my simulated environment. This patch-set adds support for shared resource table between Linux kernel and remote devices. - dynamically-allocated address of the vrings can be communicated - vdev statuses can be communicated - virtio config space becomes bi-directional - virtio feature negotiation is two-way - Carveout can be allocated from start of device memory. dma_alloc_coherent() aligns to size of memory area. So if you e.g. have 8Mb of memory, you cannot have carveout larger than 4Mb unless the carveout is allocated from start of the device memory area. NOTE: This change is not backwards compatible with existing device firmware! The memory allocation order changes. Previously the Virtio Rings were always allocated at start of the share memory area, but with this patch-set Virtio Rings are allocated after the Carveouts. The address of the vrings are set in the resource table. Cheers, Sjur Sjur Brændeland (11): remoteproc: Move enable_iommu to rproc_boot remoteproc: Code cleanup of resource parsing remoteproc: Move check on firmware name to rproc_add remoteproc: Refactor function rproc_elf_find_rsc_table remoteproc: Parse ELF file to find resource table address remoteproc: Parse STE-firmware and find resource table address remoteproc: Add state RPROC_LOADED remoteproc: Set vring addresses in resource table remoteproc: Load firmware once. remoteproc: Support virtio config space. remoteproc: Calculate max_notifyid by counting vrings drivers/remoteproc/remoteproc_core.c | 264 +++++++++++++--------------- drivers/remoteproc/remoteproc_debugfs.c | 1 + drivers/remoteproc/remoteproc_elf_loader.c | 96 +++++++--- drivers/remoteproc/remoteproc_internal.h | 16 ++ drivers/remoteproc/remoteproc_virtio.c | 38 ++++- drivers/remoteproc/ste_modem_rproc.c | 43 +++-- include/linux/remoteproc.h | 7 +- 7 files changed, 273 insertions(+), 192 deletions(-) -- 1.7.5.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
