From patchwork Mon Mar 17 12:40:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ariel D'Alessandro X-Patchwork-Id: 14019217 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 85EC0C28B30 for ; Mon, 17 Mar 2025 12:48:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=/36wnDksYJenqr18EDga6w9FrfsLJVGTJJNpjssiTcY=; b=ABfmPwFG3JI9/hhTJG9fOHalya 3VkNDm0n/JMV11ILvrE2wiViaq4Icd4HN2wZrUhkoTVtD2mTB3xE9GWMwQ6Dhjj+rCEedY/1PMzn7 wmV4yC2Hyy+J2zj3EpBsqtrpK9ro7GRr8ssvRzhk6bqOMgUdgjdNrevUTlKwnimz9+9LP13N/w8Wf os3lQwRQW1HwxRqNVeerWmyipjWp8qyJuR1GDXUX0AW/BZ+69Qw/0zeVs6mb/CrIdWm/KlBB/a9j7 pzNAPKtW06SVwv2eKdiUOLgHVWA/zywgUawbEg6e90T0OLfYFP3GCrMTJCOLkWqFbXJKOpDqbEtwL +YjP9LCQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tu9t4-00000002cdc-0rsg; Mon, 17 Mar 2025 12:48:10 +0000 Received: from sender4-pp-f112.zoho.com ([136.143.188.112]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tu9o7-00000002bfS-1eUy; Mon, 17 Mar 2025 12:43:04 +0000 ARC-Seal: i=1; a=rsa-sha256; t=1742215371; cv=none; d=zohomail.com; s=zohoarc; b=G8DDGbZ+IlF2b9695W1hwupMzkb9Nucy0zawdFDixib1lDthguQXS4PKV1maLLqou6GbXcRYg2dvoM2oxg3z/iae3D5OSkqPYwRntcX1j5mKnhcYe0O6AzdEAm+2c6WxrIq3sjahjaeIw0CijrtR+s50O+KkltgkKHzflE/Wk+s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1742215371; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=/36wnDksYJenqr18EDga6w9FrfsLJVGTJJNpjssiTcY=; b=As8jHquR7mRhjmOpRolwTj0EWi0tUAdxULCg0wQoo0EcG9FKI39ugqBRLF8XjuNzjx3Af1HPZlN/fcT5sJmB58LnbpyXHpBZNAXWX/b6O8nl8Doc5fWjI2DIKAHPzIUFyLpkgKa9pJ1SH9smRtIqqTp+TzO0TLtM26sQ7qqvwfQ= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=ariel.dalessandro@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1742215371; s=zohomail; d=collabora.com; i=ariel.dalessandro@collabora.com; h=From:From:To:To:Cc:Cc:Subject:Subject:Date:Date:Message-ID:In-Reply-To:References:MIME-Version:Content-Transfer-Encoding:Message-Id:Reply-To; bh=/36wnDksYJenqr18EDga6w9FrfsLJVGTJJNpjssiTcY=; b=DKNPygumuknEnDxNzRQ9b77EvexjWFjQx6761bVGX4fg1E6LVXRzqWQ16LWDVvBu 6ZtgaI8P5URVSe3iXzAFJSaW7DHobmCOoEC7WQeQydtUaRGgbw6fmTGm0v1WJgKNRJB kHc9SDeqv3o4rD8kFdltoot7BcGQvQjMFxGZfeJc= Received: by mx.zohomail.com with SMTPS id 1742215369726449.59679267388674; Mon, 17 Mar 2025 05:42:49 -0700 (PDT) From: Ariel D'Alessandro To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: boris.brezillon@collabora.com, robh@kernel.org, steven.price@arm.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, kernel@collabora.com, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, sjoerd@collabora.com, angelogioacchino.delregno@collabora.com, Ariel D'Alessandro Subject: [PATCH v3 2/6] drm/panfrost: Use GPU_MMU_FEATURES_VA_BITS/PA_BITS macros Date: Mon, 17 Mar 2025 09:40:40 -0300 Message-ID: <20250317124044.16257-3-ariel.dalessandro@collabora.com> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250317124044.16257-1-ariel.dalessandro@collabora.com> References: <20250317124044.16257-1-ariel.dalessandro@collabora.com> MIME-Version: 1.0 X-ZohoMailClient: External X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250317_054303_478747_51EBEF3F X-CRM114-Status: GOOD ( 10.26 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org As done in panthor, define and use these GPU_MMU_FEATURES_* macros, which makes code easier to read and reuse. Signed-off-by: Ariel D'Alessandro Reviewed-by: Boris Brezillon Reviewed-by: Steven Price Reviewed-by: AngeloGioacchino Del Regno --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 6 ++++-- drivers/gpu/drm/panfrost/panfrost_regs.h | 2 ++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 9e6f198ef5c1b..294f86b3c25e7 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -615,6 +615,8 @@ static void panfrost_drm_mm_color_adjust(const struct drm_mm_node *node, struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev) { + u32 va_bits = GPU_MMU_FEATURES_VA_BITS(pfdev->features.mmu_features); + u32 pa_bits = GPU_MMU_FEATURES_PA_BITS(pfdev->features.mmu_features); struct panfrost_mmu *mmu; mmu = kzalloc(sizeof(*mmu), GFP_KERNEL); @@ -633,8 +635,8 @@ struct panfrost_mmu *panfrost_mmu_ctx_create(struct panfrost_device *pfdev) mmu->pgtbl_cfg = (struct io_pgtable_cfg) { .pgsize_bitmap = SZ_4K | SZ_2M, - .ias = FIELD_GET(0xff, pfdev->features.mmu_features), - .oas = FIELD_GET(0xff00, pfdev->features.mmu_features), + .ias = va_bits, + .oas = pa_bits, .coherent_walk = pfdev->coherent, .tlb = &mmu_tlb_ops, .iommu_dev = pfdev->dev, diff --git a/drivers/gpu/drm/panfrost/panfrost_regs.h b/drivers/gpu/drm/panfrost/panfrost_regs.h index c7bba476ab3f3..b5f279a19a084 100644 --- a/drivers/gpu/drm/panfrost/panfrost_regs.h +++ b/drivers/gpu/drm/panfrost/panfrost_regs.h @@ -16,6 +16,8 @@ #define GROUPS_L2_COHERENT BIT(0) /* Cores groups are l2 coherent */ #define GPU_MMU_FEATURES 0x014 /* (RO) MMU features */ +#define GPU_MMU_FEATURES_VA_BITS(x) ((x) & GENMASK(7, 0)) +#define GPU_MMU_FEATURES_PA_BITS(x) (((x) >> 8) & GENMASK(7, 0)) #define GPU_AS_PRESENT 0x018 /* (RO) Address space slots present */ #define GPU_JS_PRESENT 0x01C /* (RO) Job slots present */