[PATCH v4 0/7] firmware: add partial read support in request_firmware_into_buf

From: Scott Branden
Date: Wed Apr 29 2020 - 13:09:33 EST


This patch series adds partial read support in request_firmware_into_buf.
In order to accept the enhanced API it has been requested that kernel
selftests and upstreamed driver utilize the API enhancement and so
are included in this patch series.

Also in this patch series is the addition of a new Broadcom VK driver
utilizing the new request_firmware_into_buf enhanced API.

Changes from v3:
- fix sparse warnings
- fix printf format specifiers for size_t
- fix 32-bit cross-compiling reports 32-bit shifts
- use readl/writel,_relaxed to access pci ioremap memory,
removed memory barriers and volatile keyword with such change
- driver optimizations for interrupt/poll functionalities
Changes from v2:
- remove unnecessary code and mutex locks in lib/test_firmware.c
- remove VK_IOCTL_ACCESS_BAR support from driver and use pci sysfs instead
- remove bitfields
- remove Kconfig default m
- adjust formatting and some naming based on feedback
- fix error handling conditions
- use appropriate return codes
- use memcpy_toio instead of direct access to PCIE bar

Scott Branden (7):
fs: introduce kernel_pread_file* support
firmware: add offset to request_firmware_into_buf
test_firmware: add partial read support for request_firmware_into_buf
firmware: test partial file reads of request_firmware_into_buf
bcm-vk: add bcm_vk UAPI
misc: bcm-vk: add Broadcom VK driver
MAINTAINERS: bcm-vk: add maintainer for Broadcom VK Driver

MAINTAINERS | 7 +
drivers/base/firmware_loader/firmware.h | 5 +
drivers/base/firmware_loader/main.c | 52 +-
drivers/misc/Kconfig | 1 +
drivers/misc/Makefile | 1 +
drivers/misc/bcm-vk/Kconfig | 29 +
drivers/misc/bcm-vk/Makefile | 12 +
drivers/misc/bcm-vk/bcm_vk.h | 412 +++++
drivers/misc/bcm-vk/bcm_vk_dev.c | 1211 ++++++++++++++
drivers/misc/bcm-vk/bcm_vk_legacy.c | 89 ++
drivers/misc/bcm-vk/bcm_vk_msg.c | 1414 +++++++++++++++++
drivers/misc/bcm-vk/bcm_vk_msg.h | 195 +++
drivers/misc/bcm-vk/bcm_vk_sg.c | 271 ++++
drivers/misc/bcm-vk/bcm_vk_sg.h | 60 +
drivers/misc/bcm-vk/bcm_vk_tty.c | 352 ++++
drivers/soc/qcom/mdt_loader.c | 7 +-
fs/exec.c | 96 +-
include/linux/firmware.h | 8 +-
include/linux/fs.h | 20 +
include/uapi/linux/misc/bcm_vk.h | 99 ++
lib/test_firmware.c | 144 +-
.../selftests/firmware/fw_filesystem.sh | 80 +
22 files changed, 4516 insertions(+), 49 deletions(-)
create mode 100644 drivers/misc/bcm-vk/Kconfig
create mode 100644 drivers/misc/bcm-vk/Makefile
create mode 100644 drivers/misc/bcm-vk/bcm_vk.h
create mode 100644 drivers/misc/bcm-vk/bcm_vk_dev.c
create mode 100644 drivers/misc/bcm-vk/bcm_vk_legacy.c
create mode 100644 drivers/misc/bcm-vk/bcm_vk_msg.c
create mode 100644 drivers/misc/bcm-vk/bcm_vk_msg.h
create mode 100644 drivers/misc/bcm-vk/bcm_vk_sg.c
create mode 100644 drivers/misc/bcm-vk/bcm_vk_sg.h
create mode 100644 drivers/misc/bcm-vk/bcm_vk_tty.c
create mode 100644 include/uapi/linux/misc/bcm_vk.h

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2.17.1