From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Widawsky Subject: [PATCH 06/34] drm/i915: make PDE|PTE platform specific Date: Sat, 25 May 2013 12:26:40 -0700 Message-ID: <1369510028-3343-7-git-send-email-ben@bwidawsk.net> References: <1369510028-3343-1-git-send-email-ben@bwidawsk.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from shiva.localdomain (unknown [209.20.75.48]) by gabe.freedesktop.org (Postfix) with ESMTP id E0D07E5D40 for ; Sat, 25 May 2013 12:24:43 -0700 (PDT) In-Reply-To: <1369510028-3343-1-git-send-email-ben@bwidawsk.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Intel GFX Cc: Ben Widawsky List-Id: intel-gfx@lists.freedesktop.org Nothing outside of i915_gem_gtt.c and more specifically, the relevant gen specific init function should need to know about number of PDEs, or PTEs per PD. Exposing this will only lead to circumventing using the upcoming VM abstraction. To accomplish this, move the defines into the .c file, rename the PDE define to be GEN6, and make the PTE count less of a magic number. The remaining code in the global gtt setup is a bit messy, but an upcoming patch will clean that one up. v2: Don't hardcode number of PDEs (Daniel + Jesse) Reworded commit message to reflect change. Reviewed-by: Jesse Barnes Signed-off-by: Ben Widawsky --- drivers/gpu/drm/i915/i915_drv.h | 2 -- drivers/gpu/drm/i915/i915_gem_gtt.c | 9 ++++++--- 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index c81100c..3c33e04 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -441,8 +441,6 @@ struct i915_gtt { }; #define gtt_total_entries(gtt) ((gtt).total >> PAGE_SHIFT) -#define I915_PPGTT_PD_ENTRIES 512 -#define I915_PPGTT_PT_ENTRIES 1024 struct i915_hw_ppgtt { struct drm_device *dev; unsigned num_pd_entries; diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index ddad13f..99b49fe 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -28,6 +28,9 @@ #include "i915_trace.h" #include "intel_drv.h" +#define GEN6_PPGTT_PD_ENTRIES 512 +#define I915_PPGTT_PT_ENTRIES (PAGE_SIZE / sizeof(gen6_gtt_pte_t)) + /* PPGTT stuff */ #define GEN6_GTT_ADDR_ENCODE(addr) ((addr) | (((addr) >> 28) & 0xff0)) @@ -278,7 +281,7 @@ static int gen6_ppgtt_init(struct i915_hw_ppgtt *ppgtt) } else { ppgtt->pte_encode = gen6_pte_encode; } - ppgtt->num_pd_entries = I915_PPGTT_PD_ENTRIES; + ppgtt->num_pd_entries = GEN6_PPGTT_PD_ENTRIES; ppgtt->enable = gen6_ppgtt_enable; ppgtt->clear_range = gen6_ppgtt_clear_range; ppgtt->insert_entries = gen6_ppgtt_insert_entries; @@ -688,7 +691,7 @@ void i915_gem_init_global_gtt(struct drm_device *dev) if (INTEL_INFO(dev)->gen <= 7) { /* PPGTT pdes are stolen from global gtt ptes, so shrink the * aperture accordingly when using aliasing ppgtt. */ - gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + gtt_size -= GEN6_PPGTT_PD_ENTRIES * PAGE_SIZE; } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size); @@ -699,7 +702,7 @@ void i915_gem_init_global_gtt(struct drm_device *dev) DRM_ERROR("Aliased PPGTT setup failed %d\n", ret); drm_mm_takedown(&dev_priv->mm.gtt_space); - gtt_size += I915_PPGTT_PD_ENTRIES*PAGE_SIZE; + gtt_size += GEN6_PPGTT_PD_ENTRIES * PAGE_SIZE; } i915_gem_setup_global_gtt(dev, 0, mappable_size, gtt_size); } -- 1.8.2.3