From patchwork Thu Mar 21 18:01:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Souza, Jose" X-Patchwork-Id: 10864177 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 593EA139A for ; Thu, 21 Mar 2019 18:01:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D1132A39F for ; Thu, 21 Mar 2019 18:01:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 315572A415; Thu, 21 Mar 2019 18:01:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 19C2E2A39F for ; Thu, 21 Mar 2019 18:01:48 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CE5696E164; Thu, 21 Mar 2019 18:01:46 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTPS id E475C6E162 for ; Thu, 21 Mar 2019 18:01:45 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga102.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Mar 2019 11:01:45 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.60,253,1549958400"; d="scan'208";a="127457494" Received: from josouza-mobl.jf.intel.com ([10.24.11.86]) by orsmga008.jf.intel.com with ESMTP; 21 Mar 2019 11:01:45 -0700 From: =?utf-8?q?Jos=C3=A9_Roberto_de_Souza?= To: intel-gfx@lists.freedesktop.org Date: Thu, 21 Mar 2019 11:01:36 -0700 Message-Id: <20190321180143.22519-1-jose.souza@intel.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 1/8] drm/i915/psr: Remove partial PSR support on multiple transcoders X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Dhinakaran Pandiyan Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP PSR is only support in eDP transcoder and there is only one instance of it, so lets drop all of this code. Cc: Dhinakaran Pandiyan Cc: Rodrigo Vivi Signed-off-by: José Roberto de Souza --- drivers/gpu/drm/i915/i915_reg.h | 17 +--- drivers/gpu/drm/i915/intel_psr.c | 147 ++++++++----------------------- 2 files changed, 42 insertions(+), 122 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index b46910453e61..d0ca6ef6d630 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -4277,13 +4277,9 @@ enum { /* Bspec claims those aren't shifted but stay at 0x64800 */ #define EDP_PSR_IMR _MMIO(0x64834) #define EDP_PSR_IIR _MMIO(0x64838) -#define EDP_PSR_ERROR(shift) (1 << ((shift) + 2)) -#define EDP_PSR_POST_EXIT(shift) (1 << ((shift) + 1)) -#define EDP_PSR_PRE_ENTRY(shift) (1 << (shift)) -#define EDP_PSR_TRANSCODER_C_SHIFT 24 -#define EDP_PSR_TRANSCODER_B_SHIFT 16 -#define EDP_PSR_TRANSCODER_A_SHIFT 8 -#define EDP_PSR_TRANSCODER_EDP_SHIFT 0 +#define EDP_PSR_ERROR (1 << 2) +#define EDP_PSR_POST_EXIT (1 << 1) +#define EDP_PSR_PRE_ENTRY (1 << 0) #define EDP_PSR_AUX_CTL _MMIO(dev_priv->psr_mmio_base + 0x10) #define EDP_PSR_AUX_CTL_TIME_OUT_MASK (3 << 26) @@ -4348,12 +4344,7 @@ enum { #define EDP_PSR2_IDLE_FRAME_MASK 0xf #define EDP_PSR2_IDLE_FRAME_SHIFT 0 -#define _PSR_EVENT_TRANS_A 0x60848 -#define _PSR_EVENT_TRANS_B 0x61848 -#define _PSR_EVENT_TRANS_C 0x62848 -#define _PSR_EVENT_TRANS_D 0x63848 -#define _PSR_EVENT_TRANS_EDP 0x6F848 -#define PSR_EVENT(trans) _MMIO_TRANS2(trans, _PSR_EVENT_TRANS_A) +#define PSR_EVENT _MMIO(0x6F848) #define PSR_EVENT_PSR2_WD_TIMER_EXPIRE (1 << 17) #define PSR_EVENT_PSR2_DISABLED (1 << 16) #define PSR_EVENT_SU_DIRTY_FIFO_UNDERRUN (1 << 15) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 605fe8fc85cc..dc9fdb515a54 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -84,46 +84,12 @@ static bool intel_psr2_enabled(struct drm_i915_private *dev_priv, } } -static int edp_psr_shift(enum transcoder cpu_transcoder) -{ - switch (cpu_transcoder) { - case TRANSCODER_A: - return EDP_PSR_TRANSCODER_A_SHIFT; - case TRANSCODER_B: - return EDP_PSR_TRANSCODER_B_SHIFT; - case TRANSCODER_C: - return EDP_PSR_TRANSCODER_C_SHIFT; - default: - MISSING_CASE(cpu_transcoder); - /* fallthrough */ - case TRANSCODER_EDP: - return EDP_PSR_TRANSCODER_EDP_SHIFT; - } -} - void intel_psr_irq_control(struct drm_i915_private *dev_priv, u32 debug) { - u32 debug_mask, mask; - enum transcoder cpu_transcoder; - u32 transcoders = BIT(TRANSCODER_EDP); - - if (INTEL_GEN(dev_priv) >= 8) - transcoders |= BIT(TRANSCODER_A) | - BIT(TRANSCODER_B) | - BIT(TRANSCODER_C); - - debug_mask = 0; - mask = 0; - for_each_cpu_transcoder_masked(dev_priv, cpu_transcoder, transcoders) { - int shift = edp_psr_shift(cpu_transcoder); - - mask |= EDP_PSR_ERROR(shift); - debug_mask |= EDP_PSR_POST_EXIT(shift) | - EDP_PSR_PRE_ENTRY(shift); - } + u32 mask = EDP_PSR_ERROR; if (debug & I915_PSR_DEBUG_IRQ) - mask |= debug_mask; + mask |= EDP_PSR_POST_EXIT | EDP_PSR_PRE_ENTRY; I915_WRITE(EDP_PSR_IMR, ~mask); } @@ -167,62 +133,47 @@ static void psr_event_print(u32 val, bool psr2_enabled) void intel_psr_irq_handler(struct drm_i915_private *dev_priv, u32 psr_iir) { - u32 transcoders = BIT(TRANSCODER_EDP); - enum transcoder cpu_transcoder; - ktime_t time_ns = ktime_get(); - u32 mask = 0; + ktime_t time_ns = ktime_get(); - if (INTEL_GEN(dev_priv) >= 8) - transcoders |= BIT(TRANSCODER_A) | - BIT(TRANSCODER_B) | - BIT(TRANSCODER_C); - - for_each_cpu_transcoder_masked(dev_priv, cpu_transcoder, transcoders) { - int shift = edp_psr_shift(cpu_transcoder); - - if (psr_iir & EDP_PSR_ERROR(shift)) { - DRM_WARN("[transcoder %s] PSR aux error\n", - transcoder_name(cpu_transcoder)); - - dev_priv->psr.irq_aux_error = true; - - /* - * If this interruption is not masked it will keep - * interrupting so fast that it prevents the scheduled - * work to run. - * Also after a PSR error, we don't want to arm PSR - * again so we don't care about unmask the interruption - * or unset irq_aux_error. - */ - mask |= EDP_PSR_ERROR(shift); - } + if (psr_iir & EDP_PSR_ERROR) { + u32 mask; - if (psr_iir & EDP_PSR_PRE_ENTRY(shift)) { - dev_priv->psr.last_entry_attempt = time_ns; - DRM_DEBUG_KMS("[transcoder %s] PSR entry attempt in 2 vblanks\n", - transcoder_name(cpu_transcoder)); - } + DRM_WARN("[transcoder %s] PSR aux error\n", + transcoder_name(TRANSCODER_EDP)); - if (psr_iir & EDP_PSR_POST_EXIT(shift)) { - dev_priv->psr.last_exit = time_ns; - DRM_DEBUG_KMS("[transcoder %s] PSR exit completed\n", - transcoder_name(cpu_transcoder)); + dev_priv->psr.irq_aux_error = true; - if (INTEL_GEN(dev_priv) >= 9) { - u32 val = I915_READ(PSR_EVENT(cpu_transcoder)); - bool psr2_enabled = dev_priv->psr.psr2_enabled; + /* + * If this interruption is not masked it will keep + * interrupting so fast that it prevents the scheduled + * work to run. + * Also after a PSR error, we don't want to arm PSR + * again so we don't care about unmask the interruption + * or unset irq_aux_error. + */ + mask = I915_READ(EDP_PSR_IMR) | EDP_PSR_ERROR; + I915_WRITE(EDP_PSR_IMR, mask); - I915_WRITE(PSR_EVENT(cpu_transcoder), val); - psr_event_print(val, psr2_enabled); - } - } + schedule_work(&dev_priv->psr.work); } - if (mask) { - mask |= I915_READ(EDP_PSR_IMR); - I915_WRITE(EDP_PSR_IMR, mask); + if (psr_iir & EDP_PSR_PRE_ENTRY) { + dev_priv->psr.last_entry_attempt = time_ns; + DRM_DEBUG_KMS("[transcoder %s] PSR entry attempt in 2 vblanks\n", + transcoder_name(TRANSCODER_EDP)); + } - schedule_work(&dev_priv->psr.work); + if (psr_iir & EDP_PSR_POST_EXIT) { + DRM_DEBUG_KMS("[transcoder %s] PSR exit completed\n", + transcoder_name(TRANSCODER_EDP)); + + if (INTEL_GEN(dev_priv) >= 9) { + u32 val = I915_READ(PSR_EVENT); + bool psr2_enabled = dev_priv->psr.psr2_enabled; + + I915_WRITE(PSR_EVENT, val); + psr_event_print(val, psr2_enabled); + } } } @@ -672,30 +623,10 @@ static void intel_psr_activate(struct intel_dp *intel_dp) dev_priv->psr.active = true; } -static i915_reg_t gen9_chicken_trans_reg(struct drm_i915_private *dev_priv, - enum transcoder cpu_transcoder) -{ - static const i915_reg_t regs[] = { - [TRANSCODER_A] = CHICKEN_TRANS_A, - [TRANSCODER_B] = CHICKEN_TRANS_B, - [TRANSCODER_C] = CHICKEN_TRANS_C, - [TRANSCODER_EDP] = CHICKEN_TRANS_EDP, - }; - - WARN_ON(INTEL_GEN(dev_priv) < 9); - - if (WARN_ON(cpu_transcoder >= ARRAY_SIZE(regs) || - !regs[cpu_transcoder].reg)) - cpu_transcoder = TRANSCODER_A; - - return regs[cpu_transcoder]; -} - static void intel_psr_enable_source(struct intel_dp *intel_dp, const struct intel_crtc_state *crtc_state) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); - enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; u32 mask; /* Only HSW and BDW have PSR AUX registers that need to be setup. SKL+ @@ -706,13 +637,11 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp, if (dev_priv->psr.psr2_enabled && (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv))) { - i915_reg_t reg = gen9_chicken_trans_reg(dev_priv, - cpu_transcoder); - u32 chicken = I915_READ(reg); + u32 chicken = I915_READ(CHICKEN_TRANS_EDP); chicken |= PSR2_VSC_ENABLE_PROG_HEADER | PSR2_ADD_VERTICAL_LINE_COUNT; - I915_WRITE(reg, chicken); + I915_WRITE(CHICKEN_TRANS_EDP, chicken); } /* @@ -1225,7 +1154,7 @@ void intel_psr_init(struct drm_i915_private *dev_priv) * to avoid any rendering problems. */ val = I915_READ(EDP_PSR_IIR); - val &= EDP_PSR_ERROR(edp_psr_shift(TRANSCODER_EDP)); + val &= EDP_PSR_ERROR; if (val) { DRM_DEBUG_KMS("PSR interruption error set\n"); dev_priv->psr.sink_not_reliable = true;