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From: "Dixit, Ashutosh" <ashutosh.dixit@intel.com>
To: Matthew Auld <matthew.auld@intel.com>
Cc: igt-dev@lists.freedesktop.org,
	Daniel Vetter <daniel.vetter@ffwll.ch>,
	intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH i-g-t v2 04/11] lib/i915/gem_mman: add fixed mode to gem_mmap__cpu
Date: Wed, 28 Jul 2021 16:07:37 -0700	[thread overview]
Message-ID: <87eebi3ume.wl-ashutosh.dixit@intel.com> (raw)
In-Reply-To: <20210728103041.1669985-4-matthew.auld@intel.com>

On Wed, 28 Jul 2021 03:30:34 -0700, Matthew Auld wrote:
>
> diff --git a/lib/i915/gem_mman.c b/lib/i915/gem_mman.c
> index 337d28fb..6f5e6d72 100644
> --- a/lib/i915/gem_mman.c
> +++ b/lib/i915/gem_mman.c
> @@ -434,7 +434,13 @@ void *gem_mmap__device_coherent(int fd, uint32_t handle, uint64_t offset,
>   */
>  void *__gem_mmap__cpu(int fd, uint32_t handle, uint64_t offset, uint64_t size, unsigned prot)
>  {
> -	return __gem_mmap(fd, handle, offset, size, prot, 0);
> +	void *ptr;
> +
> +	ptr = __gem_mmap(fd, handle, offset, size, prot, 0);
> +	if (!ptr)
> +		ptr = __gem_mmap_offset__fixed(fd, handle, offset, size, prot);
> +
> +	return ptr;

What about __gem_mmap__wc? Also shouldn't we just fix the __gem_mmap_offset
fallback in __gem_mmap and that will take care of both __gem_mmap__cpu and
__gem_mmap__wc?

(I think it will actually also fix __gem_mmap__device_coherent and
__gem_mmap__cpu_coherent but maybe we can still have those patches in this
series especially if they save a couple of system calls).
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  reply	other threads:[~2021-07-28 23:07 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-28 10:30 [Intel-gfx] [PATCH i-g-t v2 01/11] lib/i915/gem_mman: add FIXED mmap mode Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 02/11] lib/i915/gem_mman: add fixed mode to mmap__device_coherent Matthew Auld
2021-07-28 22:23   ` Dixit, Ashutosh
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 03/11] lib/i915/gem_mman: add fixed mode to mmap__cpu_coherent Matthew Auld
2021-07-28 22:24   ` Dixit, Ashutosh
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 04/11] lib/i915/gem_mman: add fixed mode to gem_mmap__cpu Matthew Auld
2021-07-28 23:07   ` Dixit, Ashutosh [this message]
2021-07-29  8:50     ` Matthew Auld
2021-08-02  6:29       ` Dixit, Ashutosh
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 05/11] lib/i915/gem_mman: update mmap_offset_types with FIXED Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 06/11] lib/ioctl_wrappers: update mmap_{read, write} for discrete Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 07/11] lib/intel_bufops: " Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 08/11] lib/ioctl_wrappers: update set_domain " Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 09/11] tests/i915/module_load: update " Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 10/11] lib/i915/gem_mman: add helper query for has_device_coherent Matthew Auld
2021-07-28 10:30 ` [Intel-gfx] [PATCH i-g-t v2 11/11] tests/i915/gem_exec_fence: use device_coherent mmap Matthew Auld
2021-07-28 22:20 ` [Intel-gfx] [PATCH i-g-t v2 01/11] lib/i915/gem_mman: add FIXED mmap mode Dixit, Ashutosh
2021-07-30  2:03   ` Dixit, Ashutosh

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