Re: [PATCH 05/43] fbdev/deferred-io: Test smem_start for I/O memory

[PATCH 00/43] drm: Provide fbdev emulation per memory manager · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-17
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-18
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Zack Rusin <zack.rusin@broadcom.com> · 2024-03-18
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-18
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Maxime Ripard <mripard@kernel.org> · 2024-03-18
Re: [PATCH 01/43] drm/fbdev-generic: Do not set physical framebuffer address · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-18
Re: [01/43] drm/fbdev-generic: Do not set physical framebuffer address · Sui Jingfeng <hidden> · 2024-03-18
[PATCH 03/43] fbdev/deferred-io: Clean up pageref on lastclose · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 03/43] fbdev/deferred-io: Clean up pageref on lastclose · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-17
[PATCH 04/43] fbdev/deferred-io: Test screen_buffer for vmalloc'ed memory · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 04/43] fbdev/deferred-io: Test screen_buffer for vmalloc'ed memory · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-17
[PATCH 05/43] fbdev/deferred-io: Test smem_start for I/O memory · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 05/43] fbdev/deferred-io: Test smem_start for I/O memory · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-18
[PATCH 02/43] fbdev/deferred-io: Move pageref setup into separate helper · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 02/43] fbdev/deferred-io: Move pageref setup into separate helper · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-17
[PATCH 06/43] fbdev/deferred-io: Always call get_page() for framebuffer pages · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 06/43] fbdev/deferred-io: Always call get_page() for framebuffer pages · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-18
[PATCH 10/43] drm/gud: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 10/43] drm/gud: Use fbdev-shmem · Noralf Trønnes <hidden> · 2024-03-17
[PATCH 12/43] drm/mgag200: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 12/43] drm/mgag200: Use fbdev-shmem · Jocelyn Falempe <jfalempe@redhat.com> · 2024-03-13
Re: [PATCH 12/43] drm/mgag200: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-18
Re: [PATCH 12/43] drm/mgag200: Use fbdev-shmem · Jocelyn Falempe <jfalempe@redhat.com> · 2024-03-18
[PATCH 08/43] drm/fbdev: Add fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 08/43] drm/fbdev: Add fbdev-shmem · Geert Uytterhoeven <geert@linux-m68k.org> · 2024-03-12
Re: [PATCH 08/43] drm/fbdev: Add fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-13
Re: [PATCH 08/43] drm/fbdev: Add fbdev-shmem · Geert Uytterhoeven <geert@linux-m68k.org> · 2024-03-13
Re: [PATCH 08/43] drm/fbdev: Add fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-13
Re: [PATCH 08/43] drm/fbdev: Add fbdev-shmem · Geert Uytterhoeven <geert@linux-m68k.org> · 2024-03-13
[PATCH 34/43] drm/tiny/ili9225: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 34/43] drm/tiny/ili9225: Use fbdev-dma · David Lechner <david@lechnology.com> · 2024-03-12
[PATCH 18/43] drm/udl: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 23/43] drm/hisilicon/kirin: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 14/43] drm/tiny/cirrus: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 22/43] drm/arm/komeda: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 22/43] drm/arm/komeda: Use fbdev-dma · Liviu Dudau <liviu.dudau@arm.com> · 2024-03-13
[PATCH 09/43] drm/ast: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 09/43] drm/ast: Use fbdev-shmem · Jocelyn Falempe <jfalempe@redhat.com> · 2024-03-13
[PATCH 13/43] drm/solomon: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 26/43] drm/mediatek: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 36/43] drm/tiny/ili9486: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 19/43] drm/virtio: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 19/43] drm/virtio: Use fbdev-shmem · Dmitry Osipenko <dmitry.osipenko@collabora.com> · 2024-03-28
[PATCH 27/43] drm/panel/panel-ilitek-9341: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 29/43] drm/renesas/rz-du: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
RE: [PATCH 29/43] drm/renesas/rz-du: Use fbdev-dma · Biju Das <biju.das.jz@bp.renesas.com> · 2024-03-12
Re: [PATCH 29/43] drm/renesas/rz-du: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-13
[PATCH 31/43] drm/rockchip: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 16/43] drm/tiny/ofdrm: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 07/43] fbdev/deferred-io: Provide get_page hook in struct fb_deferred_io · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 07/43] fbdev/deferred-io: Provide get_page hook in struct fb_deferred_io · Javier Martinez Canillas <javierm@redhat.com> · 2024-03-18
[PATCH 43/43] drm/fbdev: Clean up fbdev documentation · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 11/43] drm/hyperv: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 11/43] drm/hyperv: Use fbdev-shmem · Deepak Rawat <hidden> · 2024-03-12
[PATCH 20/43] drm/vkms: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 38/43] drm/tiny/panel-mipi-dbi: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 38/43] drm/tiny/panel-mipi-dbi: Use fbdev-dma · Noralf Trønnes <hidden> · 2024-03-17
[PATCH 28/43] drm/renesas/rcar-du: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 40/43] drm/tiny/st7586: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 40/43] drm/tiny/st7586: Use fbdev-dma · David Lechner <david@lechnology.com> · 2024-03-12
[PATCH 24/43] drm/imx/lcdc: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 21/43] drm/fbdev-dma: Implement damage handling and deferred I/O · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 15/43] drm/tiny/gm12u320: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 30/43] drm/renesas/shmobile: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 25/43] drm/ingenic: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 17/43] drm/tiny/simpledrm: Use fbdev-shmem · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 37/43] drm/tiny/mi0283qt: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 37/43] drm/tiny/mi0283qt: Use fbdev-dma · Noralf Trønnes <hidden> · 2024-03-17
[PATCH 32/43] drm/tiny/hx8357d: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 35/43] drm/tiny/ili9341: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Jon Hunter <jonathanh@nvidia.com> · 2024-10-22
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Thomas Zimmermann <tzimmermann@suse.de> · 2024-10-22
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Jon Hunter <jonathanh@nvidia.com> · 2024-10-22
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Thomas Zimmermann <tzimmermann@suse.de> · 2024-10-23
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Jon Hunter <jonathanh@nvidia.com> · 2024-10-23
Re: [PATCH 42/43] drm/fbdev-generic: Convert to fbdev-ttm · Jon Hunter <jonathanh@nvidia.com> · 2024-10-23
[PATCH 33/43] drm/tiny/ili9163: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
[PATCH 39/43] drm/tiny/repaper: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 39/43] drm/tiny/repaper: Use fbdev-dma · Noralf Trønnes <hidden> · 2024-03-17
[PATCH 41/43] drm/tiny/st7735r: Use fbdev-dma · Thomas Zimmermann <tzimmermann@suse.de> · 2024-03-12
Re: [PATCH 41/43] drm/tiny/st7735r: Use fbdev-dma · David Lechner <david@lechnology.com> · 2024-03-12

From: Javier Martinez Canillas <javierm@redhat.com>
Date: 2024-03-18 17:03:24
Also in: dri-devel

Thomas Zimmermann [off-list ref] writes:

Test smem_start before looking up pages from its value. Return
NULL if it is unset. This will result in a SIGBUS signal.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---

Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat

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