From patchwork Mon Jul 16 22:27:23 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alex Deucher X-Patchwork-Id: 1202651 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by patchwork2.kernel.org (Postfix) with ESMTP id C1A6BE0038 for ; Mon, 16 Jul 2012 22:37:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AA133A0270 for ; Mon, 16 Jul 2012 15:37:21 -0700 (PDT) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail-gh0-f177.google.com (mail-gh0-f177.google.com [209.85.160.177]) by gabe.freedesktop.org (Postfix) with ESMTP id 885B59F64E for ; Mon, 16 Jul 2012 15:27:45 -0700 (PDT) Received: by mail-gh0-f177.google.com with SMTP id f11so6031521ghb.36 for ; Mon, 16 Jul 2012 15:27:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer:in-reply-to:references; bh=Thg7awjRXv9T3R+3G4KvB5EEl5vTxM+QaXjZDgfOy/g=; b=exmnPogY6dD+ACdiAHJo6acXD6ktaFh5081xGtDx+Anpc/Ou/JH2Jg7O5LS82jAAie 3RD1rsahvIys3/zpGUXf3KPDIQ95ILviFxImbZ5o+jBZzbYeGpokjvjxbumHbcui5rOu DgNZp7egajNI97feiD/tXy0ZJHEsBHyp6bz3HwFpyXbVX1gtDZppa892bV2YK46lZGMa eDkbnFEq6MdMZN0rmC8qXRaqniXd6hchN+FyEDeftJcbyR29JTcBFkoJ9glgcA+85oNd 71O53XKYAfevJIol6NWwK/nuV2w9BNeicR42Maabh64lMfUlAzLk3GZRfj6CE5//PybH Fwxw== Received: by 10.101.152.6 with SMTP id e6mr29594ano.17.1342477665337; Mon, 16 Jul 2012 15:27:45 -0700 (PDT) Received: from localhost.localdomain (static-74-96-105-49.washdc.fios.verizon.net. [74.96.105.49]) by mx.google.com with ESMTPS id u23sm31387143yhl.21.2012.07.16.15.27.44 (version=SSLv3 cipher=OTHER); Mon, 16 Jul 2012 15:27:44 -0700 (PDT) From: alexdeucher@gmail.com To: airlied@gmail.com, dri-devel@lists.freedesktop.org Subject: [PATCH 10/10] drm/radeon: start to document evergreen.c Date: Mon, 16 Jul 2012 18:27:23 -0400 Message-Id: <1342477643-3160-11-git-send-email-alexdeucher@gmail.com> X-Mailer: git-send-email 1.7.7.5 In-Reply-To: <1342477643-3160-1-git-send-email-alexdeucher@gmail.com> References: <1342477643-3160-1-git-send-email-alexdeucher@gmail.com> Cc: Alex Deucher X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.13 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org Errors-To: dri-devel-bounces+patchwork-dri-devel=patchwork.kernel.org@lists.freedesktop.org From: Alex Deucher Still a lot to do. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/evergreen.c | 120 ++++++++++++++++++++++++++++++++++++ 1 files changed, 120 insertions(+), 0 deletions(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 4b8e5c5..b560e65 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -99,6 +99,14 @@ void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev) } } +/** + * dce4_wait_for_vblank - vblank wait asic callback. + * + * @rdev: radeon_device pointer + * @crtc: crtc to wait for vblank on + * + * Wait for vblank on the requested crtc (evergreen+). + */ void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc]; @@ -118,18 +126,49 @@ void dce4_wait_for_vblank(struct radeon_device *rdev, int crtc) } } +/** + * radeon_irq_kms_pflip_irq_get - pre-pageflip callback. + * + * @rdev: radeon_device pointer + * @crtc: crtc to prepare for pageflip on + * + * Pre-pageflip callback (evergreen+). + * Enables the pageflip irq (vblank irq). + */ void evergreen_pre_page_flip(struct radeon_device *rdev, int crtc) { /* enable the pflip int */ radeon_irq_kms_pflip_irq_get(rdev, crtc); } +/** + * evergreen_post_page_flip - pos-pageflip callback. + * + * @rdev: radeon_device pointer + * @crtc: crtc to cleanup pageflip on + * + * Post-pageflip callback (evergreen+). + * Disables the pageflip irq (vblank irq). + */ void evergreen_post_page_flip(struct radeon_device *rdev, int crtc) { /* disable the pflip int */ radeon_irq_kms_pflip_irq_put(rdev, crtc); } +/** + * evergreen_page_flip - pageflip callback. + * + * @rdev: radeon_device pointer + * @crtc_id: crtc to cleanup pageflip on + * @crtc_base: new address of the crtc (GPU MC address) + * + * Does the actual pageflip (evergreen+). + * During vblank we take the crtc lock and wait for the update_pending + * bit to go high, when it does, we release the lock, and allow the + * double buffered update to take place. + * Returns the current update pending status. + */ u32 evergreen_page_flip(struct radeon_device *rdev, int crtc_id, u64 crtc_base) { struct radeon_crtc *radeon_crtc = rdev->mode_info.crtcs[crtc_id]; @@ -214,6 +253,15 @@ int sumo_get_temp(struct radeon_device *rdev) return actual_temp * 1000; } +/** + * sumo_pm_init_profile - Initialize power profiles callback. + * + * @rdev: radeon_device pointer + * + * Initialize the power states used in profile mode + * (sumo, trinity, SI). + * Used for profile mode only. + */ void sumo_pm_init_profile(struct radeon_device *rdev) { int idx; @@ -265,6 +313,14 @@ void sumo_pm_init_profile(struct radeon_device *rdev) rdev->pm.power_state[idx].num_clock_modes - 1; } +/** + * evergreen_pm_misc - set additional pm hw parameters callback. + * + * @rdev: radeon_device pointer + * + * Set non-clock parameters associated with a power state + * (voltage, etc.) (evergreen+). + */ void evergreen_pm_misc(struct radeon_device *rdev) { int req_ps_idx = rdev->pm.requested_power_state_index; @@ -292,6 +348,13 @@ void evergreen_pm_misc(struct radeon_device *rdev) } } +/** + * evergreen_pm_prepare - pre-power state change callback. + * + * @rdev: radeon_device pointer + * + * Prepare for a power state change (evergreen+). + */ void evergreen_pm_prepare(struct radeon_device *rdev) { struct drm_device *ddev = rdev->ddev; @@ -310,6 +373,13 @@ void evergreen_pm_prepare(struct radeon_device *rdev) } } +/** + * evergreen_pm_finish - post-power state change callback. + * + * @rdev: radeon_device pointer + * + * Clean up after a power state change (evergreen+). + */ void evergreen_pm_finish(struct radeon_device *rdev) { struct drm_device *ddev = rdev->ddev; @@ -328,6 +398,15 @@ void evergreen_pm_finish(struct radeon_device *rdev) } } +/** + * evergreen_hpd_sense - hpd sense callback. + * + * @rdev: radeon_device pointer + * @hpd: hpd (hotplug detect) pin + * + * Checks if a digital monitor is connected (evergreen+). + * Returns true if connected, false if not connected. + */ bool evergreen_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd) { bool connected = false; @@ -364,6 +443,14 @@ bool evergreen_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd) return connected; } +/** + * evergreen_hpd_set_polarity - hpd set polarity callback. + * + * @rdev: radeon_device pointer + * @hpd: hpd (hotplug detect) pin + * + * Set the polarity of the hpd pin (evergreen+). + */ void evergreen_hpd_set_polarity(struct radeon_device *rdev, enum radeon_hpd_id hpd) { @@ -424,6 +511,14 @@ void evergreen_hpd_set_polarity(struct radeon_device *rdev, } } +/** + * evergreen_hpd_init - hpd setup callback. + * + * @rdev: radeon_device pointer + * + * Setup the hpd pins used by the card (evergreen+). + * Enable the pin, set the polarity, and enable the hpd interrupts. + */ void evergreen_hpd_init(struct radeon_device *rdev) { struct drm_device *dev = rdev->ddev; @@ -462,6 +557,14 @@ void evergreen_hpd_init(struct radeon_device *rdev) radeon_irq_kms_enable_hpd(rdev, enabled); } +/** + * evergreen_hpd_fini - hpd tear down callback. + * + * @rdev: radeon_device pointer + * + * Tear down the hpd pins used by the card (evergreen+). + * Disable the hpd interrupts. + */ void evergreen_hpd_fini(struct radeon_device *rdev) { struct drm_device *dev = rdev->ddev; @@ -925,6 +1028,14 @@ static void evergreen_program_watermarks(struct radeon_device *rdev, } +/** + * evergreen_bandwidth_update - update display watermarks callback. + * + * @rdev: radeon_device pointer + * + * Update the display watermarks based on the requested mode(s) + * (evergreen+). + */ void evergreen_bandwidth_update(struct radeon_device *rdev) { struct drm_display_mode *mode0 = NULL; @@ -948,6 +1059,15 @@ void evergreen_bandwidth_update(struct radeon_device *rdev) } } +/** + * evergreen_mc_wait_for_idle - wait for MC idle callback. + * + * @rdev: radeon_device pointer + * + * Wait for the MC (memory controller) to be idle. + * (evergreen+). + * Returns 0 if the MC is idle, -1 if not. + */ int evergreen_mc_wait_for_idle(struct radeon_device *rdev) { unsigned i;