From: Archit Taneja <architt@codeaurora.org>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Subject: Re: [PATCH v2 00/25] drm: fb emulation: Step 1: Create new drm_fb_helper wrapper funcs
Date: Wed, 22 Jul 2015 14:04:15 +0530 [thread overview]
Message-ID: <55AF5587.4070607@codeaurora.org> (raw)
In-Reply-To: <20150722074104.GU16722@phenom.ffwll.local>
On 07/22/2015 01:11 PM, Daniel Vetter wrote:
> On Wed, Jul 22, 2015 at 12:29:36PM +0530, Archit Taneja wrote:
>> DRM drivers using drm_fb_helpers still call some fbdev core functions.
>> This makes the driver depend on CONFIG_FB, resulting in complicated
>> Kconfig options, and preventing us from creating a top level drm config
>> option to enable/disable FBDEV emulation.
>>
>> Create new drm_fb_helper functions that replace these fbdev functions.
>>
>> In most cases, the new helper funcs simply wrap around the original fbdev
>> functions. For a few (like framebufer_alloc), we actually do some work
>> that is currently redundant across multiple drivers.
>>
>> With these patches, the drivers don't call any fbdev functions directly.
>> They are now called through functions in drm_fb_helper.c. We will later
>> create a fbdev emulation config option to stub out the fb helpers.
>>
>> The only exception is vmwgfx driver. This doesn't use drm_fb_helper. It
>> creates a fb device how a driver in drivers/video/fbdev would. Maybe this
>> needs to be converted to use drm_fb_helpers.
>>
>> For more info, have a look at the threads:
>> http://lists.freedesktop.org/archives/dri-devel/2015-March/078729.html
>> http://lists.freedesktop.org/archives/dri-devel/2015-March/078975.html
>>
>> v2:
>> - Remove if (info) checks in fb_sys functions
>> - Use 'if (fb_helper && fb_helper->fbdev)' checks where appropriate
>> - Add kerneldocs for the new helper funcs
>> - Follow drm way of aligning of arguments in func definitions
>> - Fixed build error in drm/virtio
>> - Fixed error cleanup path in drm/tegra
>> - Fixed build error in drm/rockchip
>> - Fixed return issue in drm/amdgpu
>> - Fixed 'unused variable' warnings in bochs, ast, udl and radeon
>> - Fixed stray goto labels in cirrus, exynos, mgag
>
> When resending patches please also have changelogs per-patch, not just in
> the cover letter. Otherwise you have to constantly jump back&forth.
>
> Also I'd drop the compile tested only from patches, just adds noise.
I'll remove the 'compile tested only' line from the patches.
About the changelogs per-patch, I'll add them for the drm_fb_helper.c
changes, and for a few drm drivers where people found flaws in the
changes. I'm going to skip for the ones which were build error/warning
fixes found by kbots. I didn't intend the first version to be full
proof, just wanted people to have a look.
Thanks,
Archit
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
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prev parent reply other threads:[~2015-07-22 8:34 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-13 6:37 [PATCH 00/25] drm: fb emulation: Step 1: Create new drm_fb_helper wrapper funcs Archit Taneja
2015-07-13 6:37 ` [PATCH 01/25] drm/fb_helper: Add drm_fb_helper functions to manage fb_info creation Archit Taneja
2015-07-13 6:37 ` [PATCH 02/25] drm/fb_helper: Create a wrapper for unlink_framebuffer Archit Taneja
2015-07-13 7:30 ` Daniel Vetter
2015-07-13 6:37 ` [PATCH 03/25] drm/fb_helper: Create wrappers for fb_sys_read/write funcs Archit Taneja
2015-07-13 7:31 ` Daniel Vetter
2015-07-13 9:59 ` Archit Taneja
2015-07-13 7:39 ` Daniel Vetter
2015-07-13 6:38 ` [PATCH 04/25] drm/fb_helper: Create wrappers for blit, copyarea and fillrect funcs Archit Taneja
2015-07-13 7:40 ` Daniel Vetter
2015-07-13 6:38 ` [PATCH 05/25] drm/fb_helper: Create a wrapper for fb_set_suspend Archit Taneja
2015-07-13 6:38 ` [PATCH 06/25] drm/fb_helper: Create a wrapper for remove_conflicting_framebuffers Archit Taneja
2015-07-13 6:38 ` [PATCH 07/25] drm/cirrus: Use new drm_fb_helper functions Archit Taneja
2015-07-13 6:38 ` [PATCH 08/25] drm/rockchip: " Archit Taneja
2015-07-13 6:38 ` [PATCH 09/25] drm/armada: " Archit Taneja
2015-07-13 6:38 ` [PATCH 10/25] drm/ast: " Archit Taneja
2015-07-13 6:38 ` [PATCH 11/25] drm/omap: " Archit Taneja
2015-07-13 6:38 ` [PATCH 12/25] drm/tegra: " Archit Taneja
2015-07-14 8:50 ` Thierry Reding
2015-07-14 9:11 ` Archit Taneja
2015-07-13 6:38 ` [PATCH 13/25] drm/msm: " Archit Taneja
2015-07-13 6:38 ` [PATCH 14/25] drm/exynos: " Archit Taneja
2015-08-11 9:04 ` Inki Dae
2015-08-11 9:11 ` Inki Dae
2015-07-13 6:38 ` [PATCH 15/25] drm/gma500: " Archit Taneja
2015-07-13 6:38 ` [PATCH 16/25] drm/mgag200: " Archit Taneja
2015-07-13 6:38 ` [PATCH 17/25] drm/radeon: " Archit Taneja
2015-07-13 6:38 ` [PATCH 18/25] drm/qxl: " Archit Taneja
2015-07-13 6:38 ` [PATCH 19/25] drm/i915: " Archit Taneja
2015-07-13 6:38 ` [PATCH 20/25] drm/nouveau: " Archit Taneja
2015-07-13 6:38 ` [PATCH 21/25] drm/udl: " Archit Taneja
2015-07-13 6:38 ` [PATCH 22/25] drm/boschs: " Archit Taneja
2015-07-13 6:38 ` [PATCH 23/25] drm/amdgpu: " Archit Taneja
2015-07-13 6:38 ` [PATCH 24/25] drm/virtio: " Archit Taneja
2015-07-13 6:38 ` [PATCH 25/25] drm/fb_cma_helper: " Archit Taneja
2015-07-13 8:07 ` [PATCH 00/25] drm: fb emulation: Step 1: Create new drm_fb_helper wrapper funcs Daniel Vetter
2015-07-13 10:29 ` Archit Taneja
2015-07-13 14:11 ` Daniel Vetter
2015-07-13 15:25 ` Alex Deucher
2015-07-22 6:59 ` [PATCH v2 " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 01/25] drm/fb_helper: Add drm_fb_helper functions to manage fb_info creation Archit Taneja
2015-07-22 6:59 ` [PATCH v2 02/25] drm/fb_helper: Create a wrapper for unlink_framebuffer Archit Taneja
2015-07-22 6:59 ` [PATCH v2 03/25] drm/fb_helper: Create wrappers for fb_sys_read/write funcs Archit Taneja
2015-07-22 6:59 ` [PATCH v2 04/25] drm/fb_helper: Create wrappers for blit, copyarea and fillrect funcs Archit Taneja
2015-07-22 6:59 ` [PATCH v2 05/25] drm/fb_helper: Create a wrapper for fb_set_suspend Archit Taneja
2015-07-22 6:59 ` [PATCH v2 06/25] drm/fb_helper: Create a wrapper for remove_conflicting_framebuffers Archit Taneja
2015-07-22 6:59 ` [PATCH v2 07/25] drm/cirrus: Use new drm_fb_helper functions Archit Taneja
2015-07-22 6:59 ` [PATCH v2 08/25] drm/rockchip: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 09/25] drm/armada: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 10/25] drm/ast: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 11/25] drm/omap: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 12/25] drm/tegra: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 13/25] drm/msm: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 14/25] drm/exynos: " Archit Taneja
2015-08-11 12:27 ` Inki Dae
2015-07-22 6:59 ` [PATCH v2 15/25] drm/gma500: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 16/25] drm/mgag200: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 17/25] drm/radeon: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 18/25] drm/qxl: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 19/25] drm/i915: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 20/25] drm/nouveau: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 21/25] drm/udl: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 22/25] drm/bochs: " Archit Taneja
2015-07-22 6:59 ` [PATCH v2 23/25] drm/amdgpu: " Archit Taneja
2015-07-22 7:00 ` [PATCH v2 24/25] drm/virtio: " Archit Taneja
2015-07-22 7:00 ` [PATCH v2 25/25] drm/fb_cma_helper: " Archit Taneja
2015-07-22 7:41 ` [PATCH v2 00/25] drm: fb emulation: Step 1: Create new drm_fb_helper wrapper funcs Daniel Vetter
2015-07-22 8:34 ` Archit Taneja [this message]
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