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Tue, 6 Aug 2024 12:09:10 +0000 (GMT) Received: from epsmgms1p2new.samsung.com (unknown [182.195.42.42]) by epsmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240806120910epsmtrp282af1e81e0f56b730bc118d524d22f05~pImVNyaKs0294202942epsmtrp2K; Tue, 6 Aug 2024 12:09:10 +0000 (GMT) X-AuditID: b6c32a49-aabb8700000025a8-e9-66b21b83dae5 Received: from epsmtip2.samsung.com ( [182.195.34.31]) by epsmgms1p2new.samsung.com (Symantec Messaging Gateway) with SMTP id C6.E8.08456.66212B66; Tue, 6 Aug 2024 21:09:10 +0900 (KST) Received: from cheetah.sa.corp.samsungelectronics.net (unknown [107.109.115.53]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20240806120909epsmtip2899fc7b950568b76927de86a555ad74d~pImTaRr0G1162811628epsmtip2M; Tue, 6 Aug 2024 12:09:08 +0000 (GMT) From: Aakarsh Jain To: linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: m.szyprowski@samsung.com, andrzej.hajda@intel.com, mchehab@kernel.org, hverkuil-cisco@xs4all.nl, krzysztof.kozlowski+dt@linaro.org, linux-samsung-soc@vger.kernel.org, gost.dev@samsung.com, aswani.reddy@samsung.com, pankaj.dubey@samsung.com, Aakarsh Jain Subject: [PATCH] media: s5p-mfc: Corrected NV12M/NV21M plane-sizes Date: Tue, 6 Aug 2024 17:27:14 +0530 Message-Id: <20240806115714.29828-1-aakarsh.jain@samsung.com> X-Mailer: git-send-email 2.17.1 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFvrFKsWRmVeSWpSXmKPExsWy7bCmhm6z9KY0g60/zS2e7pjJanF/8WcW i0Obt7Jb3Dywk8ni4sy7LBZ9Lx4yW2x6fI3V4vKuOWwWPRu2slrMOL+PyWLtkbvsFss2/WGy WLT1C7sDr8fiPS+ZPDat6mTzuHNtD5vH5iX1Hn1bVjF6fN4k53Hq62f2APaobJuM1MSU1CKF 1Lzk/JTMvHRbJe/geOd4UzMDQ11DSwtzJYW8xNxUWyUXnwBdt8wcoGuVFMoSc0qBQgGJxcVK +nY2RfmlJakKGfnFJbZKqQUpOQUmBXrFibnFpXnpenmpJVaGBgZGpkCFCdkZBx7NYC/4JlSx q30vYwPjDIEuRk4OCQETiS3zvzJ3MXJxCAnsZpT413qMDcL5xCgxpWE1lPONUaLvziNmmJZl d/8xQST2Mkr0X/0L1d/KJNHzZhGQw8HBJqArcXZ7DkiDiECqxKt1a1lBapgFljBJLDryjAmk RljASWLbWSWQGhYBVYmnzRNZQWxeAVuJXZe2skIsk5dYveEA2HwJgY/sEp8+/IZKuEhcvvmM EcIWlnh1fAs7hC0l8fndXjYIO1ni8aKXUFfnSKzfM4UFwraXOHBlDgvIDcwCmhLrd+lDhGUl pp5axwRiMwvwSfT+fsIEEeeV2DEPxlaTmHPnB9QJMhKHVy+FOsFDYtfiE2DjhQRiJb6eusc8 gVF2FsKGBYyMqxglUwuKc9NTi00LDPNSy+ERlZyfu4kRnAi1PHcw3n3wQe8QIxMH4yFGCQ5m JRHertINaUK8KYmVValF+fFFpTmpxYcYTYFhNpFZSjQ5H5iK80riDU0sDUzMzMxMLI3NDJXE eV+3zk0REkhPLEnNTk0tSC2C6WPi4JRqYNKwnff6vOtNvfXLbri9N9LWjNDrT/8++6aArTev yJ3Dyy/oCPxR1LRz8TvOKa0nvpB5baEzvzjbv6uXjVVdmtatLDiZ+W3agWNHC2ewRO6cMmfe TIHYiTccPISjPtvWJT9bWPLjSavc4qhz+T5G/Vc8w4UXLpXlm3/opkNd5q881tg1/jILp3S0 LlqQfmfj//gpnC+m1rpP9MmNuf/unaL1pasJsbrOMaXryvhPT3sWse1RruD+RA+NlDOTCli/ /3h58eKa/PlyFvU2s28escyRMu7VeJ2tHz05+Pos2z6+ebGZsdM3Mvm9OG8y8Ra3UMbKbo8z h2Ttr5/USrdQ1b/Y0pz4a+vX2Z/0XwsymiixFGckGmoxFxUnAgABejHdDQQAAA== X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrCLMWRmVeSWpSXmKPExsWy7bCSvG6a0KY0gx8NxhZPd8xktbi/+DOL xaHNW9ktbh7YyWRxceZdFou+Fw+ZLTY9vsZqcXnXHDaLng1bWS1mnN/HZLH2yF12i2Wb/jBZ LNr6hd2B12PxnpdMHptWdbJ53Lm2h81j85J6j74tqxg9Pm+S8zj19TN7AHsUl01Kak5mWWqR vl0CV8aBRzPYC74JVexq38vYwDhDoIuRk0NCwERi2d1/TF2MXBxCArsZJd7e+M0GkZCR+N92 jB3CFpZY+e85mC0k0Mwk8eKfehcjBwebgK7E2e05IGERgXSJSXe+soDMYRZYxySxc+VEVpAa YQEniW1nlUBqWARUJZ42g4Q5OXgFbCV2XdrKCjFeXmL1hgPMExh5FjAyrGKUTC0ozk3PLTYs MMpLLdcrTswtLs1L10vOz93ECA5ILa0djHtWfdA7xMjEwXiIUYKDWUmEt6t0Q5oQb0piZVVq UX58UWlOavEhRmkOFiVx3m+ve1OEBNITS1KzU1MLUotgskwcnFINTAyrF7o4/z555/Lp6dJX rxau9SuRvLRs67Mti2I5trw/XbXe5Y7/LanfwfauJ9UFRbacvGWbdy5x05ENMVGZp1icQs0v a8s96Vt/vy/3ofBO7ykp87cwf7pjpvqvbc0F3qWs/5JDnJNc/tUq5hiKXH1+5UtK1BOJGesd DbcGHv/6SF+Q8UHe4imi1jNVtPKDXvHmOhtVx53ZNPnL57OMl3uNJ4gfNr/ezvN0ofAXPt+S vQKprDs2xj6RjHm21+L+jbfqrDzHTy2cFlHQ87d+woq4zpCI5a9YJgVt1Z8500tdU35ThI3t FzHXLZNYnLV2/UzS5Vgh7ip1wznZ9M+WpKRKhqWsZjtUlibOWFH1jVuJpTgj0VCLuag4EQAk pH9wtwIAAA== X-CMS-MailID: 20240806120911epcas5p1b0defc027a7f03ee9bf5f21036d3ae5e X-Msg-Generator: CA X-Sendblock-Type: REQ_APPROVE CMS-TYPE: 105P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20240806120911epcas5p1b0defc027a7f03ee9bf5f21036d3ae5e References: Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: There is a possibility of getting page fault if the overall buffer size is not aligned to 256bytes. Since MFC does read operation only and it won't corrupt the data values even if it reads the extra bytes. Corrected luma and chroma plane sizes for V4L2_PIX_FMT_NV12M and V4L2_PIX_FMT_NV21M pixel format. Signed-off-by: Aakarsh Jain --- .../media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c index 73f7af674c01..03c957221fc4 100644 --- a/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c +++ b/drivers/media/platform/samsung/s5p-mfc/s5p_mfc_opr_v6.c @@ -498,8 +498,8 @@ static void s5p_mfc_dec_calc_dpb_size_v6(struct s5p_mfc_ctx *ctx) case V4L2_PIX_FMT_NV21M: ctx->stride[0] = ALIGN(ctx->img_width, S5P_FIMV_NV12MT_HALIGN_V6); ctx->stride[1] = ALIGN(ctx->img_width, S5P_FIMV_NV12MT_HALIGN_V6); - ctx->luma_size = calc_plane(ctx->stride[0], ctx->img_height); - ctx->chroma_size = calc_plane(ctx->stride[1], (ctx->img_height / 2)); + ctx->luma_size = calc_plane(ctx->img_width, ctx->img_height); + ctx->chroma_size = calc_plane(ctx->img_width, (ctx->img_height >> 1)); break; case V4L2_PIX_FMT_YUV420M: case V4L2_PIX_FMT_YVU420M: @@ -539,9 +539,11 @@ static void s5p_mfc_dec_calc_dpb_size_v6(struct s5p_mfc_ctx *ctx) static void s5p_mfc_enc_calc_src_size_v6(struct s5p_mfc_ctx *ctx) { unsigned int mb_width, mb_height; + unsigned int default_size; mb_width = MB_WIDTH(ctx->img_width); mb_height = MB_HEIGHT(ctx->img_height); + default_size = (mb_width * mb_height) * 256; if (IS_MFCV12(ctx->dev)) { switch (ctx->src_fmt->fourcc) { @@ -549,8 +551,8 @@ static void s5p_mfc_enc_calc_src_size_v6(struct s5p_mfc_ctx *ctx) case V4L2_PIX_FMT_NV21M: ctx->stride[0] = ALIGN(ctx->img_width, S5P_FIMV_NV12M_HALIGN_V6); ctx->stride[1] = ALIGN(ctx->img_width, S5P_FIMV_NV12M_HALIGN_V6); - ctx->luma_size = ctx->stride[0] * ALIGN(ctx->img_height, 16); - ctx->chroma_size = ctx->stride[0] * ALIGN(ctx->img_height / 2, 16); + ctx->luma_size = ALIGN(default_size, 256); + ctx->chroma_size = ALIGN(default_size / 2, 256); break; case V4L2_PIX_FMT_YUV420M: case V4L2_PIX_FMT_YVU420M: