From: Ayan Halder <Ayan.Halder@arm.com> To: Ayan Halder <Ayan.Halder@arm.com>, Liviu Dudau <Liviu.Dudau@arm.com>, Brian Starkey <Brian.Starkey@arm.com>, "malidp@foss.arm.com" <malidp@foss.arm.com>, "airlied@linux.ie" <airlied@linux.ie>, "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "maxime.ripard@bootlin.com" <maxime.ripard@bootlin.com>, "sean@poorly.run" <sean@poorly.run>, "maarten.lankhorst@linux.intel.com" <maarten.lankhorst@linux.intel.com>, "corbet@lwn.net" <corbet@lwn.net>, "mchehab+samsung@kernel.org" <mchehab+samsung@kernel.org>, "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>, "davem@davemloft.net" <davem@davemloft.net>, "akpm@linux-foundation.org" <akpm@linux-foundation.org>, "nicolas.ferre@microchip.com" <nicolas.ferre@microchip.com>, "arnd@arndb.de" <arnd@arndb.de>, "linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org> Cc: nd <nd@arm.com> Subject: [RFC AFBC 11/12] drm/arm/malidp:- Disregard the pitch alignment constraint for AFBC framebuffer. Date: Mon, 3 Dec 2018 11:32:05 +0000 [thread overview] Message-ID: <1543836703-8491-12-git-send-email-ayan.halder@arm.com> (raw) In-Reply-To: <1543836703-8491-1-git-send-email-ayan.halder@arm.com> Considering the fact that some of the AFBC specific pixel formats are expressed in bits per pixel (ie bpp which is not byte aligned), the pitch (ie width * bpp) is not guaranteed to be aligned to burst size (ie 8 or 16 bytes). For example, DRM_FORMAT_VUY101010 is 30 bits per pixel. For a framebuffer of width 32 pixels, the pitch will be 120 bytes which is not aligned to burst size (ie 16 bytes) for DP650. Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com> --- drivers/gpu/drm/arm/malidp_planes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index d0a00ee..eec0442 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -529,8 +529,8 @@ static int malidp_de_plane_check(struct drm_plane *plane, for (i = 0; i < ms->n_planes; i++) { u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated); - if ((fb->pitches[i] * drm_format_info_block_height(fb->format, i)) - & (alignment - 1)) { + if (((fb->pitches[i] * drm_format_info_block_height(fb->format, i)) + & (alignment - 1)) && !(fb->modifier)) { DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n", fb->pitches[i], i); return -EINVAL; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Ayan Halder <Ayan.Halder@arm.com> To: Ayan Halder <Ayan.Halder@arm.com>, Liviu Dudau <Liviu.Dudau@arm.com>, Brian Starkey <Brian.Starkey@arm.com>, "malidp@foss.arm.com" <malidp@foss.arm.com>, "airlied@linux.ie" <airlied@linux.ie>, "dri-devel@lists.freedesktop.org" <dri-devel@lists.freedesktop.org>, "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>, "maxime.ripard@bootlin.com" <maxime.ripard@bootlin.com>, "sean@poorly.run" <sean@poorly.run>, "maarten.lankhorst@linux.intel.com" <maarten.lankhorst@linux.intel.com>, "corbet@lwn.net" <corbet@lwn.net>, "mchehab+samsung@kernel.org" <mchehab+samsung@kernel.org>, "gregkh@linuxfoundation.org" <gregkh@linuxfoundation.org>, "davem@davemloft.net" <davem@davemloft.net>, "akpm@linux-foundation.org" <akpm@linux-foundation.org>, "nicolas.ferre@microchip.com" <nicolas.ferre@microchip.com>, "arnd@arndb.de" <arnd@arndb.de>, "linux-doc@vger.kernel.org" <linux-doc@vge> Cc: nd <nd@arm.com> Subject: [RFC AFBC 11/12] drm/arm/malidp:- Disregard the pitch alignment constraint for AFBC framebuffer. Date: Mon, 3 Dec 2018 11:32:05 +0000 [thread overview] Message-ID: <1543836703-8491-12-git-send-email-ayan.halder@arm.com> (raw) In-Reply-To: <1543836703-8491-1-git-send-email-ayan.halder@arm.com> Considering the fact that some of the AFBC specific pixel formats are expressed in bits per pixel (ie bpp which is not byte aligned), the pitch (ie width * bpp) is not guaranteed to be aligned to burst size (ie 8 or 16 bytes). For example, DRM_FORMAT_VUY101010 is 30 bits per pixel. For a framebuffer of width 32 pixels, the pitch will be 120 bytes which is not aligned to burst size (ie 16 bytes) for DP650. Signed-off-by: Ayan Kumar halder <ayan.halder@arm.com> --- drivers/gpu/drm/arm/malidp_planes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index d0a00ee..eec0442 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -529,8 +529,8 @@ static int malidp_de_plane_check(struct drm_plane *plane, for (i = 0; i < ms->n_planes; i++) { u8 alignment = malidp_hw_get_pitch_align(mp->hwdev, rotated); - if ((fb->pitches[i] * drm_format_info_block_height(fb->format, i)) - & (alignment - 1)) { + if (((fb->pitches[i] * drm_format_info_block_height(fb->format, i)) + & (alignment - 1)) && !(fb->modifier)) { DRM_DEBUG_KMS("Invalid pitch %u for plane %d\n", fb->pitches[i], i); return -EINVAL; -- 2.7.4 _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2018-12-03 11:32 UTC|newest] Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-12-03 11:31 [RFC AFBC v2 00/12] Add support for Arm Framebuffer Compression(AFBC) in mali display driver Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2018-12-03 11:31 ` [RFC AFBC 01/12] drm/fourcc: Add AFBC yuv fourccs for Mali Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2018-12-03 11:31 ` [RFC AFBC 02/12] drm: Added a new format DRM_FORMAT_XVYU2101010 Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2018-12-04 16:31 ` Liviu Dudau 2018-12-04 16:31 ` Liviu Dudau 2018-12-03 11:31 ` [RFC AFBC 03/12] drm/afbc: Add AFBC modifier usage documentation Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2019-01-03 20:44 ` Ezequiel Garcia 2019-01-03 20:44 ` Ezequiel Garcia 2019-01-11 18:07 ` Liviu Dudau 2019-01-11 18:07 ` Liviu Dudau 2019-01-14 12:23 ` Jani Nikula 2019-01-14 12:23 ` Jani Nikula 2019-01-14 14:13 ` Brian Starkey 2019-01-14 14:13 ` Brian Starkey 2019-01-14 14:24 ` Jani Nikula 2019-01-14 14:24 ` Jani Nikula 2018-12-03 11:31 ` [RFC v3 AFBC 04/12] drm/arm/malidp: Set the AFBC register bits if the framebuffer has AFBC modifier Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2018-12-04 16:50 ` Liviu Dudau 2018-12-04 16:50 ` Liviu Dudau 2018-12-14 13:45 ` Ayan Halder 2018-12-14 13:45 ` Ayan Halder 2018-12-17 14:01 ` Liviu Dudau 2018-12-17 14:01 ` Liviu Dudau 2018-12-03 11:31 ` [RFC AFBC 05/12] drm/arm/malidp:- Define a common list of AFBC format modifiers supported for DP500, DP550 and DP650 Ayan Halder 2018-12-03 11:31 ` Ayan Halder 2018-12-04 16:56 ` Liviu Dudau 2018-12-04 16:56 ` Liviu Dudau 2018-12-03 11:32 ` [RFC AFBC 06/12] drm/arm/malidp:- Added support for new YUV formats " Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 16:57 ` Liviu Dudau 2018-12-04 16:57 ` Liviu Dudau 2018-12-14 14:12 ` Ayan Halder 2018-12-14 14:12 ` Ayan Halder 2018-12-17 14:04 ` Liviu Dudau 2018-12-03 11:32 ` [RFC AFBC 07/12] drm/arm/malidp: Define the constraints on each supported drm_fourcc format for the AFBC modifiers Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 17:49 ` Liviu Dudau 2018-12-04 17:49 ` Liviu Dudau 2018-12-14 14:23 ` Ayan Halder 2018-12-14 14:23 ` Ayan Halder 2018-12-03 11:32 ` [RFC AFBC 08/12] drm/arm/malidp: Specified the rotation memory requirements for AFBC YUV formats Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 17:50 ` Liviu Dudau 2018-12-04 17:50 ` Liviu Dudau 2018-12-03 11:32 ` [RFC AFBC 09/12] drm/arm/malidp:- Writeback framebuffer does not support any modifiers Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 17:50 ` Liviu Dudau 2018-12-04 17:50 ` Liviu Dudau 2018-12-03 11:32 ` [RFC AFBC 10/12] drm/arm/malidp:- Use the newly introduced malidp_format_get_bpp() instead of relying on cpp for calculating framebuffer size Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 17:51 ` Liviu Dudau 2018-12-04 17:51 ` Liviu Dudau 2018-12-03 11:32 ` Ayan Halder [this message] 2018-12-03 11:32 ` [RFC AFBC 11/12] drm/arm/malidp:- Disregard the pitch alignment constraint for AFBC framebuffer Ayan Halder 2018-12-04 17:52 ` Liviu Dudau 2018-12-04 17:52 ` Liviu Dudau 2018-12-03 11:32 ` [RFC v3 AFBC 12/12] drm/arm/malidp: Added support for AFBC modifiers for all layers except DE_SMART Ayan Halder 2018-12-03 11:32 ` Ayan Halder 2018-12-04 17:54 ` Liviu Dudau 2018-12-04 17:54 ` Liviu Dudau
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