mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-11 17:36:49 +07:00
a5f5774c55
Certain eMMC devices allow vendor specific device information to be read via a sequence of vendor commands. These vendor commands must be issued in sequence and an atomic fashion. One way to support this would be to add an ioctl function for sending a sequence of commands to the device atomically as proposed here. These multi commands are simple array of the existing mmc_ioc_cmd structure. The structure passed via the ioctl uses a __u64 type to specify the number of commands (so that the structure is aligned on a 64-bit boundary) and a zero length array as a header for list of commands to be issued. The maximum number of commands that can be sent is determined by MMC_IOC_MAX_CMDS (which defaults to 255 and should be more than sufficient). This based upon work by Seshagiri Holi <sholi@nvidia.com>. Signed-off-by: Seshagiri Holi <sholi@nvidia.com> Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> |
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| rxrpc | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||
| Kbuild | ||