From: Even Xu <even.xu@intel.com>
To: srinivas.pandruvada@linux.intel.com, jikos@kernel.org,
benjamin.tissoires@redhat.com
Cc: linux-input@vger.kernel.org, Even Xu <even.xu@intel.com>
Subject: [PATCH 0/3] enable ISH DMA on EHL platform
Date: Thu, 10 Jun 2021 14:21:51 +0800 [thread overview]
Message-ID: <1623306114-19208-1-git-send-email-even.xu@intel.com> (raw)
These patch set are used for enabling ISH DMA on EHL platform.
During ISH DMA enabling, some platforms (such as EHL) don't
support cache snooping, bus driver (ishtp) has to involve
a new callback, dma_no_cache_snooping(), in hardware layer (ipc)
to get hardware DMA capability.
When do cache flush, clflush_cache_range() API is used on X86
which isn't supported by all other archs (such as ARM).
Considering ISH only exists on Intel platforms, adding ISH
depending on X86 in Kconfig to avoid build warnings or errors
on other archs.
Even Xu (3):
hid: intel-ish-hid: Set ISH driver depends on x86
hid: intel-ish-hid: ishtp: Add dma_no_cache_snooping() callback
hid: intel-ish-hid: ipc: Specify that EHL no cache snooping
drivers/hid/intel-ish-hid/Kconfig | 1 +
drivers/hid/intel-ish-hid/ipc/ipc.c | 26 +++++++++++++++++++++++++-
drivers/hid/intel-ish-hid/ishtp/client.c | 18 ++++++++++++++++++
drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h | 1 +
4 files changed, 45 insertions(+), 1 deletion(-)
--
2.7.4
next reply other threads:[~2021-06-10 6:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 6:21 Even Xu [this message]
2021-06-10 6:21 ` [PATCH 1/3] hid: intel-ish-hid: Set ISH driver depends on x86 Even Xu
2021-06-10 6:21 ` [PATCH 2/3] hid: intel-ish-hid: ishtp: Add dma_no_cache_snooping() callback Even Xu
2021-06-10 6:21 ` [PATCH 3/3] hid: intel-ish-hid: ipc: Specify that EHL no cache snooping Even Xu
2021-06-14 13:55 ` [PATCH 0/3] enable ISH DMA on EHL platform Jiri Kosina
2021-06-15 1:21 ` Xu, Even
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