From patchwork Fri Jul 25 03:28:24 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dheeraj Jamwal X-Patchwork-Id: 4708731 Return-Path: X-Original-To: patchwork-ltsi-dev@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id E66549F375 for ; Mon, 11 Aug 2014 18:46:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id E506520123 for ; Mon, 11 Aug 2014 18:46:09 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DFD492011E for ; Mon, 11 Aug 2014 18:46:08 +0000 (UTC) Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id E569AAC4; Mon, 11 Aug 2014 18:42:57 +0000 (UTC) X-Original-To: ltsi-dev@lists.linuxfoundation.org Delivered-To: ltsi-dev@mail.linuxfoundation.org Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 170D6A53 for ; Fri, 25 Jul 2014 03:26:18 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by smtp1.linuxfoundation.org (Postfix) with ESMTP id 6FBE11FB59 for ; Fri, 25 Jul 2014 03:26:17 +0000 (UTC) Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga101.fm.intel.com with ESMTP; 24 Jul 2014 20:26:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.01,727,1400050800"; d="scan'208";a="566985577" Received: from ubuntu-desktop.png.intel.com ([10.221.122.23]) by fmsmga001.fm.intel.com with ESMTP; 24 Jul 2014 20:26:16 -0700 From: Dheeraj Jamwal To: ltsi-dev@lists.linuxfoundation.org Date: Fri, 25 Jul 2014 11:28:24 +0800 Message-Id: <1406258918-18934-37-git-send-email-dheerajx.s.jamwal@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1406258918-18934-1-git-send-email-dheerajx.s.jamwal@intel.com> References: <1406258918-18934-1-git-send-email-dheerajx.s.jamwal@intel.com> X-Spam-Status: No, score=-4.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Mailman-Approved-At: Mon, 11 Aug 2014 18:42:51 +0000 Subject: [LTSI-dev] [PATCH 36/50] drm/i915: wire up CRC interrupt for ilk/snb X-BeenThere: ltsi-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: "A list to discuss patches, development, and other things related to the LTSI project" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: ltsi-dev-bounces@lists.linuxfoundation.org Errors-To: ltsi-dev-bounces@lists.linuxfoundation.org X-Virus-Scanned: ClamAV using ClamSMTP From: Daniel Vetter We enable the interrupt unconditionally and only control it through the enable bit in the CRC control register. v2: Extract per-platform helpers to compute the register values. Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter (cherry picked from commit 5b3a856bcfa3d24496035a77ab086548773a633d) Signed-off-by: Dheeraj Jamwal --- drivers/gpu/drm/i915/i915_debugfs.c | 74 +++++++++++++++++++++++++++-------- drivers/gpu/drm/i915/i915_drv.h | 1 + drivers/gpu/drm/i915/i915_irq.c | 26 +++++++++++- drivers/gpu/drm/i915/i915_reg.h | 2 + 4 files changed, 84 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7811bf4..baa5272 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1914,6 +1914,7 @@ static const char * const pipe_crc_sources[] = { "plane1", "plane2", "pf", + "pipe", }; static const char *pipe_crc_source_name(enum intel_pipe_crc_source source) @@ -1942,14 +1943,61 @@ static int display_crc_ctl_open(struct inode *inode, struct file *file) return single_open(file, display_crc_ctl_show, dev); } +static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source, + uint32_t *val) +{ + switch (source) { + case INTEL_PIPE_CRC_SOURCE_PLANE1: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK; + break; + case INTEL_PIPE_CRC_SOURCE_PLANE2: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK; + break; + case INTEL_PIPE_CRC_SOURCE_PF: + return -EINVAL; + case INTEL_PIPE_CRC_SOURCE_PIPE: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK; + break; + default: + *val = 0; + break; + } + + return 0; +} + +static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source source, + uint32_t *val) +{ + switch (source) { + case INTEL_PIPE_CRC_SOURCE_PLANE1: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PLANE2: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PF: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PIPE: + return -EINVAL; + default: + *val = 0; + break; + } + + return 0; +} + static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, enum intel_pipe_crc_source source) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe]; u32 val; + int ret; - if (!IS_IVYBRIDGE(dev)) + if (!(IS_IVYBRIDGE(dev) || IS_GEN5(dev) || IS_GEN6(dev))) return -ENODEV; if (pipe_crc->source == source) @@ -1959,6 +2007,14 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, if (pipe_crc->source && source) return -EINVAL; + if (IS_GEN5(dev) || IS_GEN6(dev)) + ret = ilk_pipe_crc_ctl_reg(source, &val); + else + ret = ivb_pipe_crc_ctl_reg(source, &val); + + if (ret != 0) + return ret; + /* none -> real source transition */ if (source) { DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n", @@ -1976,22 +2032,6 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, pipe_crc->source = source; - switch (source) { - case INTEL_PIPE_CRC_SOURCE_PLANE1: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_PLANE2: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_PF: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_NONE: - default: - val = 0; - break; - } - I915_WRITE(PIPE_CRC_CTL(pipe), val); POSTING_READ(PIPE_CRC_CTL(pipe)); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index c119a01..8a2a474 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1223,6 +1223,7 @@ enum intel_pipe_crc_source { INTEL_PIPE_CRC_SOURCE_PLANE1, INTEL_PIPE_CRC_SOURCE_PLANE2, INTEL_PIPE_CRC_SOURCE_PF, + INTEL_PIPE_CRC_SOURCE_PIPE, INTEL_PIPE_CRC_SOURCE_MAX, }; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index df031bb..36465ef 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1240,8 +1240,22 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe) I915_READ(PIPE_CRC_RES_5_IVB(pipe)), I915_READ(PIPEFRAME(pipe))); } + +static void ilk_pipe_crc_update(struct drm_device *dev, enum pipe pipe) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + display_pipe_crc_update(dev, pipe, + I915_READ(PIPE_CRC_RES_RED_ILK(pipe)), + I915_READ(PIPE_CRC_RES_GREEN_ILK(pipe)), + I915_READ(PIPE_CRC_RES_BLUE_ILK(pipe)), + I915_READ(PIPE_CRC_RES_RES1_ILK(pipe)), + I915_READ(PIPE_CRC_RES_RES2_ILK(pipe)), + I915_READ(PIPEFRAME(pipe))); +} #else static inline void ivb_pipe_crc_update(struct drm_device *dev, int pipe) {} +static inline void ilk_pipe_crc_update(struct drm_device *dev, int pipe) {} #endif /* The RPS events need forcewake, so we add them to a work queue and mask their @@ -1524,6 +1538,12 @@ static void ilk_display_irq_handler(struct drm_device *dev, u32 de_iir) if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_B, false)) DRM_DEBUG_DRIVER("Pipe B FIFO underrun\n"); + if (de_iir & DE_PIPEA_CRC_DONE) + ilk_pipe_crc_update(dev, PIPE_A); + + if (de_iir & DE_PIPEB_CRC_DONE) + ilk_pipe_crc_update(dev, PIPE_B); + if (de_iir & DE_PLANEA_FLIP_DONE) { intel_prepare_page_flip(dev, 0); intel_finish_page_flip_plane(dev, 0); @@ -2500,8 +2520,10 @@ static int ironlake_irq_postinstall(struct drm_device *dev) } else { display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT | DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE | - DE_AUX_CHANNEL_A | DE_PIPEB_FIFO_UNDERRUN | - DE_PIPEA_FIFO_UNDERRUN | DE_POISON); + DE_AUX_CHANNEL_A | + DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN | + DE_PIPEB_CRC_DONE | DE_PIPEA_CRC_DONE | + DE_POISON); extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT; } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index c376572..3388105 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3922,12 +3922,14 @@ #define DE_PIPEB_ODD_FIELD (1 << 13) #define DE_PIPEB_LINE_COMPARE (1 << 12) #define DE_PIPEB_VSYNC (1 << 11) +#define DE_PIPEB_CRC_DONE (1 << 10) #define DE_PIPEB_FIFO_UNDERRUN (1 << 8) #define DE_PIPEA_VBLANK (1 << 7) #define DE_PIPEA_EVEN_FIELD (1 << 6) #define DE_PIPEA_ODD_FIELD (1 << 5) #define DE_PIPEA_LINE_COMPARE (1 << 4) #define DE_PIPEA_VSYNC (1 << 3) +#define DE_PIPEA_CRC_DONE (1 << 2) #define DE_PIPEA_FIFO_UNDERRUN (1 << 0) /* More Ivybridge lolz */