From: Michael Ellerman <mpe@ellerman.id.au>
To: Michael Neuling <mikey@neuling.org>,
greg@kroah.com, arnd@arndb.de, benh@kernel.crashing.org
Cc: cbe-oss-dev@lists.ozlabs.org, mikey@neuling.org,
linux-kernel@vger.kernel.org, imunsie@au.ibm.com,
linuxppc-dev@ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
anton@samba.org, jk@ozlabs.org
Subject: Re: [v3,12/16] cxl: Add base builtin support
Date: Wed, 8 Oct 2014 10:04:15 +1100 (EST) [thread overview]
Message-ID: <20141007230416.2040C14011E@ozlabs.org> (raw)
In-Reply-To: <1412678902-18672-13-git-send-email-mikey@neuling.org>
On Tue, 2014-07-10 at 10:48:18 UTC, Michael Neuling wrote:
> From: Ian Munsie <imunsie@au1.ibm.com>
>
> This adds the base cxl support that needs to be build into the kernel to use
> cxl as a module. This is needed so that the cxl call backs from the core
> powerpc mm code always exist irrespective of if the cxl module is loaded or
> not. This is similar to how cell works with CONFIG_SPU_BASE.
>
> This adds a cxl_slbia() call (similar to spu_flush_all_slbs()) which checks for
> the cxl module being loaded. If the modules is not loaded we return, otherwise
> we call into the cxl SLB invalidation code.
>
> This also adds the cxl_ctx_in_use() function for use in the mm code to see if
> any cxl contexts are currently in use. This is used by the tlbie() to
> determine if it can do local TLB invalidations or not. This also adds get/put
> calls for the cxl driver module to refcount the active cxl contexts.
This last paragraph is no longer true.
cheers
next prev parent reply other threads:[~2014-10-07 23:04 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-07 10:48 [PATCH v3 0/16] POWER8 Coherent Accelerator device driver Michael Neuling
2014-10-07 10:48 ` [PATCH v3 01/16] powerpc/cell: Move spu_handle_mm_fault() out of cell platform Michael Neuling
2014-10-07 11:08 ` Stephen Rothwell
2014-10-07 11:34 ` Michael Neuling
2014-10-07 10:48 ` [PATCH v3 02/16] powerpc/cell: Move data segment faulting code " Michael Neuling
2014-10-07 10:48 ` [PATCH v3 03/16] powerpc/cell: Make spu_flush_all_slbs() generic Michael Neuling
2014-10-07 10:48 ` [PATCH v3 04/16] powerpc/msi: Improve IRQ bitmap allocator Michael Neuling
2014-10-07 10:48 ` [PATCH v3 05/16] powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize Michael Neuling
2014-10-07 10:48 ` [PATCH v3 06/16] powerpc/powernv: Split out set MSI IRQ chip code Michael Neuling
2014-10-07 10:48 ` [PATCH v3 07/16] cxl: Add new header for call backs and structs Michael Neuling
2014-10-07 10:48 ` [PATCH v3 08/16] powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts Michael Neuling
2014-10-07 22:59 ` [v3, " Michael Ellerman
2014-10-08 0:46 ` Michael Neuling
2014-10-07 10:48 ` [PATCH v3 09/16] powerpc/mm: Add new hash_page_mm() Michael Neuling
2014-10-07 10:48 ` [PATCH v3 10/16] powerpc/opal: Add PHB to cxl mode call Michael Neuling
2014-10-07 10:48 ` [PATCH v3 11/16] powerpc/mm: Add hooks for cxl Michael Neuling
2014-10-07 10:48 ` [PATCH v3 12/16] cxl: Add base builtin support Michael Neuling
2014-10-07 23:04 ` Michael Ellerman [this message]
2014-10-08 0:45 ` [v3,12/16] " Michael Neuling
2014-10-07 10:48 ` [PATCH v3 13/16] cxl: Driver code for powernv PCIe based cards for userspace access Michael Neuling
2014-10-07 10:48 ` [PATCH v3 14/16] cxl: Userspace header file Michael Neuling
2014-10-07 10:48 ` [PATCH v3 15/16] cxl: Add driver to Kbuild and Makefiles Michael Neuling
2014-10-07 10:48 ` [PATCH v3 16/16] cxl: Add documentation for userspace APIs Michael Neuling
2014-10-08 5:36 ` [v3,16/16] " Michael Ellerman
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