From mboxrd@z Thu Jan 1 00:00:00 1970 From: Deepak S Subject: Re: [PATCH 3/7] drm/i915: keep freq/opcode conversion function more generic Date: Fri, 11 Jul 2014 09:56:35 +0530 Message-ID: <53BF677B.8030200@linux.intel.com> References: <1404978387-28180-1-git-send-email-deepak.s@linux.intel.com> <1404978387-28180-4-git-send-email-deepak.s@linux.intel.com> <20140709120355.GR17271@phenom.ffwll.local> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by gabe.freedesktop.org (Postfix) with ESMTP id 695226E170 for ; Wed, 9 Jul 2014 21:31:34 -0700 (PDT) In-Reply-To: <20140709120355.GR17271@phenom.ffwll.local> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: Daniel Vetter Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Wednesday 09 July 2014 05:33 PM, Daniel Vetter wrote: > On Thu, Jul 10, 2014 at 01:16:23PM +0530, deepak.s@linux.intel.com wrote: >> From: Deepak S >> >> Since freq/encode conversion formula changes from platform to platform, >> create a generic wrapper function and having platform check inside this >> help to simpilfy adding newer platform freq/opcode conversion. >> >> Signed-off-by: Deepak S >> --- >> drivers/gpu/drm/i915/i915_debugfs.c | 14 +++++----- >> drivers/gpu/drm/i915/i915_drv.h | 4 +-- >> drivers/gpu/drm/i915/i915_sysfs.c | 18 ++++++------- >> drivers/gpu/drm/i915/intel_pm.c | 52 +++++++++++++++++++++++++++---------- >> 4 files changed, 56 insertions(+), 32 deletions(-) >> >> diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c >> index b3b56c4..dd7078d 100644 >> --- a/drivers/gpu/drm/i915/i915_debugfs.c >> +++ b/drivers/gpu/drm/i915/i915_debugfs.c >> @@ -1140,14 +1140,14 @@ static int i915_frequency_info(struct seq_file *m, void *unused) >> >> val = valleyview_rps_max_freq(dev_priv); >> seq_printf(m, "max GPU freq: %d MHz\n", >> - vlv_gpu_freq(dev_priv, val)); >> + intel_gpu_freq(dev_priv, val)); > intel_ is a bit too generic a prefix for a function which seems to be only > used on byt+chv. I'd just add a if (IS_CHERRYVIEW) ... else /* vlv code */ > to both functions and not extract further. > > Aside: Since marketing stopped using vlv and switched to byt we're using > vlv for code shared by byt and chv and byt_ for byt-only code. Helps a bit > to keep things appart. > -Daniel Ok. Will it be Ok to use "vlv_gpu_freq" and have BYT and CHV check under this function? The reason why i made more generic is it will help us to add conversion logic for future platforms Thanks Deepak >> >> val = valleyview_rps_min_freq(dev_priv); >> seq_printf(m, "min GPU freq: %d MHz\n", >> - vlv_gpu_freq(dev_priv, val)); >> + intel_gpu_freq(dev_priv, val)); >> >> seq_printf(m, "current GPU freq: %d MHz\n", >> - vlv_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff)); >> + intel_gpu_freq(dev_priv, (freq_sts >> 8) & 0xff)); >> mutex_unlock(&dev_priv->rps.hw_lock); >> } else { >> seq_puts(m, "no P-state info available\n"); >> @@ -3667,7 +3667,7 @@ i915_max_freq_get(void *data, u64 *val) >> return ret; >> >> if (IS_VALLEYVIEW(dev)) >> - *val = vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit); >> + *val = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit); >> else >> *val = dev_priv->rps.max_freq_softlimit * GT_FREQUENCY_MULTIPLIER; >> mutex_unlock(&dev_priv->rps.hw_lock); >> @@ -3698,7 +3698,7 @@ i915_max_freq_set(void *data, u64 val) >> * Turbo will still be enabled, but won't go above the set value. >> */ >> if (IS_VALLEYVIEW(dev)) { >> - val = vlv_freq_opcode(dev_priv, val); >> + val = intel_freq_opcode(dev_priv, val); >> >> hw_max = valleyview_rps_max_freq(dev_priv); >> hw_min = valleyview_rps_min_freq(dev_priv); >> @@ -3748,7 +3748,7 @@ i915_min_freq_get(void *data, u64 *val) >> return ret; >> >> if (IS_VALLEYVIEW(dev)) >> - *val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit); >> + *val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit); >> else >> *val = dev_priv->rps.min_freq_softlimit * GT_FREQUENCY_MULTIPLIER; >> mutex_unlock(&dev_priv->rps.hw_lock); >> @@ -3779,7 +3779,7 @@ i915_min_freq_set(void *data, u64 val) >> * Turbo will still be enabled, but won't go below the set value. >> */ >> if (IS_VALLEYVIEW(dev)) { >> - val = vlv_freq_opcode(dev_priv, val); >> + val = intel_freq_opcode(dev_priv, val); >> >> hw_max = valleyview_rps_max_freq(dev_priv); >> hw_min = valleyview_rps_min_freq(dev_priv); >> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h >> index 90216bb..bce4654 100644 >> --- a/drivers/gpu/drm/i915/i915_drv.h >> +++ b/drivers/gpu/drm/i915/i915_drv.h >> @@ -2749,8 +2749,8 @@ void intel_sbi_write(struct drm_i915_private *dev_priv, u16 reg, u32 value, >> u32 vlv_flisdsi_read(struct drm_i915_private *dev_priv, u32 reg); >> void vlv_flisdsi_write(struct drm_i915_private *dev_priv, u32 reg, u32 val); >> >> -int vlv_gpu_freq(struct drm_i915_private *dev_priv, int val); >> -int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val); >> +int intel_gpu_freq(struct drm_i915_private *dev_priv, int val); >> +int intel_freq_opcode(struct drm_i915_private *dev_priv, int val); >> >> #define FORCEWAKE_RENDER (1 << 0) >> #define FORCEWAKE_MEDIA (1 << 1) >> diff --git a/drivers/gpu/drm/i915/i915_sysfs.c b/drivers/gpu/drm/i915/i915_sysfs.c >> index b15c8ce..adfc4b9 100644 >> --- a/drivers/gpu/drm/i915/i915_sysfs.c >> +++ b/drivers/gpu/drm/i915/i915_sysfs.c >> @@ -269,7 +269,7 @@ static ssize_t gt_cur_freq_mhz_show(struct device *kdev, >> if (IS_VALLEYVIEW(dev_priv->dev)) { >> u32 freq; >> freq = vlv_punit_read(dev_priv, PUNIT_REG_GPU_FREQ_STS); >> - ret = vlv_gpu_freq(dev_priv, (freq >> 8) & 0xff); >> + ret = intel_gpu_freq(dev_priv, (freq >> 8) & 0xff); >> } else { >> ret = dev_priv->rps.cur_freq * GT_FREQUENCY_MULTIPLIER; >> } >> @@ -288,7 +288,7 @@ static ssize_t vlv_rpe_freq_mhz_show(struct device *kdev, >> struct drm_i915_private *dev_priv = dev->dev_private; >> >> return snprintf(buf, PAGE_SIZE, "%d\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq)); >> + intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq)); >> } >> >> static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute *attr, char *buf) >> @@ -302,7 +302,7 @@ static ssize_t gt_max_freq_mhz_show(struct device *kdev, struct device_attribute >> >> mutex_lock(&dev_priv->rps.hw_lock); >> if (IS_VALLEYVIEW(dev_priv->dev)) >> - ret = vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit); >> + ret = intel_gpu_freq(dev_priv, dev_priv->rps.max_freq_softlimit); >> else >> ret = dev_priv->rps.max_freq_softlimit * GT_FREQUENCY_MULTIPLIER; >> mutex_unlock(&dev_priv->rps.hw_lock); >> @@ -329,7 +329,7 @@ static ssize_t gt_max_freq_mhz_store(struct device *kdev, >> mutex_lock(&dev_priv->rps.hw_lock); >> >> if (IS_VALLEYVIEW(dev_priv->dev)) >> - val = vlv_freq_opcode(dev_priv, val); >> + val = intel_freq_opcode(dev_priv, val); >> else >> val /= GT_FREQUENCY_MULTIPLIER; >> >> @@ -374,7 +374,7 @@ static ssize_t gt_min_freq_mhz_show(struct device *kdev, struct device_attribute >> >> mutex_lock(&dev_priv->rps.hw_lock); >> if (IS_VALLEYVIEW(dev_priv->dev)) >> - ret = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit); >> + ret = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq_softlimit); >> else >> ret = dev_priv->rps.min_freq_softlimit * GT_FREQUENCY_MULTIPLIER; >> mutex_unlock(&dev_priv->rps.hw_lock); >> @@ -401,7 +401,7 @@ static ssize_t gt_min_freq_mhz_store(struct device *kdev, >> mutex_lock(&dev_priv->rps.hw_lock); >> >> if (IS_VALLEYVIEW(dev)) >> - val = vlv_freq_opcode(dev_priv, val); >> + val = intel_freq_opcode(dev_priv, val); >> else >> val /= GT_FREQUENCY_MULTIPLIER; >> >> @@ -462,17 +462,17 @@ static ssize_t gt_rp_mhz_show(struct device *kdev, struct device_attribute *attr >> >> if (attr == &dev_attr_gt_RP0_freq_mhz) { >> if (IS_VALLEYVIEW(dev)) >> - val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp0_freq); >> + val = intel_gpu_freq(dev_priv, dev_priv->rps.rp0_freq); >> else >> val = ((rp_state_cap & 0x0000ff) >> 0) * GT_FREQUENCY_MULTIPLIER; >> } else if (attr == &dev_attr_gt_RP1_freq_mhz) { >> if (IS_VALLEYVIEW(dev)) >> - val = vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq); >> + val = intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq); >> else >> val = ((rp_state_cap & 0x00ff00) >> 8) * GT_FREQUENCY_MULTIPLIER; >> } else if (attr == &dev_attr_gt_RPn_freq_mhz) { >> if (IS_VALLEYVIEW(dev)) >> - val = vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq); >> + val = intel_gpu_freq(dev_priv, dev_priv->rps.min_freq); >> else >> val = ((rp_state_cap & 0xff0000) >> 16) * GT_FREQUENCY_MULTIPLIER; >> } else { >> diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c >> index b8e7afc..9dfebab 100644 >> --- a/drivers/gpu/drm/i915/intel_pm.c >> +++ b/drivers/gpu/drm/i915/intel_pm.c >> @@ -3328,9 +3328,9 @@ void valleyview_set_rps(struct drm_device *dev, u8 val) >> WARN_ON(val < dev_priv->rps.min_freq_softlimit); >> >> DRM_DEBUG_DRIVER("GPU freq request from %d MHz (%u) to %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> dev_priv->rps.cur_freq, >> - vlv_gpu_freq(dev_priv, val), val); >> + intel_gpu_freq(dev_priv, val), val); >> >> if (val != dev_priv->rps.cur_freq) >> vlv_punit_write(dev_priv, PUNIT_REG_GPU_FREQ_REQ, val); >> @@ -3338,7 +3338,7 @@ void valleyview_set_rps(struct drm_device *dev, u8 val) >> I915_WRITE(GEN6_PMINTRMSK, gen6_rps_pm_mask(dev_priv, val)); >> >> dev_priv->rps.cur_freq = val; >> - trace_intel_gpu_freq_change(vlv_gpu_freq(dev_priv, val)); >> + trace_intel_gpu_freq_change(intel_gpu_freq(dev_priv, val)); >> } >> >> static void gen8_disable_rps_interrupts(struct drm_device *dev) >> @@ -3961,22 +3961,22 @@ static void valleyview_init_gt_powersave(struct drm_device *dev) >> dev_priv->rps.max_freq = valleyview_rps_max_freq(dev_priv); >> dev_priv->rps.rp0_freq = dev_priv->rps.max_freq; >> DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.max_freq), >> dev_priv->rps.max_freq); >> >> dev_priv->rps.efficient_freq = valleyview_rps_rpe_freq(dev_priv); >> DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> dev_priv->rps.efficient_freq); >> >> dev_priv->rps.rp1_freq = valleyview_rps_guar_freq(dev_priv); >> DRM_DEBUG_DRIVER("RP1(Guar Freq) GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.rp1_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.rp1_freq), >> dev_priv->rps.rp1_freq); >> >> dev_priv->rps.min_freq = valleyview_rps_min_freq(dev_priv); >> DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.min_freq), >> dev_priv->rps.min_freq); >> >> /* Preserve min/max settings in case of re-init */ >> @@ -4000,17 +4000,17 @@ static void cherryview_init_gt_powersave(struct drm_device *dev) >> dev_priv->rps.max_freq = cherryview_rps_max_freq(dev_priv); >> dev_priv->rps.rp0_freq = dev_priv->rps.max_freq; >> DRM_DEBUG_DRIVER("max GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.max_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.max_freq), >> dev_priv->rps.max_freq); >> >> dev_priv->rps.efficient_freq = cherryview_rps_rpe_freq(dev_priv); >> DRM_DEBUG_DRIVER("RPe GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> dev_priv->rps.efficient_freq); >> >> dev_priv->rps.min_freq = cherryview_rps_min_freq(dev_priv); >> DRM_DEBUG_DRIVER("min GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.min_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.min_freq), >> dev_priv->rps.min_freq); >> >> /* Preserve min/max settings in case of re-init */ >> @@ -4106,11 +4106,11 @@ static void cherryview_enable_rps(struct drm_device *dev) >> >> dev_priv->rps.cur_freq = (val >> 8) & 0xff; >> DRM_DEBUG_DRIVER("current GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> dev_priv->rps.cur_freq); >> >> DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> dev_priv->rps.efficient_freq); >> >> valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq); >> @@ -4184,11 +4184,11 @@ static void valleyview_enable_rps(struct drm_device *dev) >> >> dev_priv->rps.cur_freq = (val >> 8) & 0xff; >> DRM_DEBUG_DRIVER("current GPU freq: %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.cur_freq), >> dev_priv->rps.cur_freq); >> >> DRM_DEBUG_DRIVER("setting GPU freq to %d MHz (%u)\n", >> - vlv_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> + intel_gpu_freq(dev_priv, dev_priv->rps.efficient_freq), >> dev_priv->rps.efficient_freq); >> >> valleyview_set_rps(dev_priv->dev, dev_priv->rps.efficient_freq); >> @@ -6946,6 +6946,30 @@ int vlv_freq_opcode(struct drm_i915_private *dev_priv, int val) >> return DIV_ROUND_CLOSEST(4 * mul * val, dev_priv->mem_freq) + 0xbd - 6; >> } >> >> +int intel_gpu_freq(struct drm_i915_private *dev_priv, int val) >> +{ >> + int ret; >> + >> + if (!IS_VALLEYVIEW(dev_priv->dev)) >> + return -1; >> + >> + ret = vlv_gpu_freq(dev_priv, val); >> + >> + return ret; >> +} >> + >> +int intel_freq_opcode(struct drm_i915_private *dev_priv, int val) >> +{ >> + int ret; >> + >> + if (!IS_VALLEYVIEW(dev_priv->dev)) >> + return -1; >> + >> + ret = vlv_freq_opcode(dev_priv, val); >> + >> + return ret; >> +} >> + >> void intel_pm_setup(struct drm_device *dev) >> { >> struct drm_i915_private *dev_priv = dev->dev_private; >> -- >> 1.9.1 >> >> _______________________________________________ >> Intel-gfx mailing list >> Intel-gfx@lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/intel-gfx