From ab75bb5d852cf9a877a973c2174e7791d92554c5 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Wed, 4 Nov 2015 23:20:12 +0200 Subject: [PATCH] drm/i915: Turn vgpu pdps into an array MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit We'll want to avoid performing arithmetic with register offsets, so instead calculating the vgpu PDP as pdp0_lo+offset, make the PDPs into an array. This way we can simply loop through them. Cc: Eddie Dong Cc: Jike Song Cc: Kevin Tian Cc: Yu Zhang Cc: Zhi Wang Cc: Zhiyuan Lv Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1446672017-24497-25-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Zhiyuan Lv --- drivers/gpu/drm/i915/i915_gem_gtt.c | 11 ++++------- drivers/gpu/drm/i915/i915_vgpu.h | 12 ++++-------- 2 files changed, 8 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 1e3dd1060e51..96e923648360 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -910,14 +910,13 @@ static int gen8_ppgtt_notify_vgt(struct i915_hw_ppgtt *ppgtt, bool create) enum vgt_g2v_type msg; struct drm_device *dev = ppgtt->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; - unsigned int offset = vgtif_reg(pdp0_lo); int i; if (USES_FULL_48BIT_PPGTT(dev)) { u64 daddr = px_dma(&ppgtt->pml4); - I915_WRITE(offset, lower_32_bits(daddr)); - I915_WRITE(offset + 4, upper_32_bits(daddr)); + I915_WRITE(vgtif_reg(pdp[0].lo), lower_32_bits(daddr)); + I915_WRITE(vgtif_reg(pdp[0].hi), upper_32_bits(daddr)); msg = (create ? VGT_G2V_PPGTT_L4_PAGE_TABLE_CREATE : VGT_G2V_PPGTT_L4_PAGE_TABLE_DESTROY); @@ -925,10 +924,8 @@ static int gen8_ppgtt_notify_vgt(struct i915_hw_ppgtt *ppgtt, bool create) for (i = 0; i < GEN8_LEGACY_PDPES; i++) { u64 daddr = i915_page_dir_dma_addr(ppgtt, i); - I915_WRITE(offset, lower_32_bits(daddr)); - I915_WRITE(offset + 4, upper_32_bits(daddr)); - - offset += 8; + I915_WRITE(vgtif_reg(pdp[i].lo), lower_32_bits(daddr)); + I915_WRITE(vgtif_reg(pdp[i].hi), upper_32_bits(daddr)); } msg = (create ? VGT_G2V_PPGTT_L3_PAGE_TABLE_CREATE : diff --git a/drivers/gpu/drm/i915/i915_vgpu.h b/drivers/gpu/drm/i915/i915_vgpu.h index 21c97f44d637..2c97d5a47e6d 100644 --- a/drivers/gpu/drm/i915/i915_vgpu.h +++ b/drivers/gpu/drm/i915/i915_vgpu.h @@ -92,14 +92,10 @@ struct vgt_if { uint32_t g2v_notify; uint32_t rsv6[7]; - uint32_t pdp0_lo; - uint32_t pdp0_hi; - uint32_t pdp1_lo; - uint32_t pdp1_hi; - uint32_t pdp2_lo; - uint32_t pdp2_hi; - uint32_t pdp3_lo; - uint32_t pdp3_hi; + struct { + uint32_t lo; + uint32_t hi; + } pdp[4]; uint32_t execlist_context_descriptor_lo; uint32_t execlist_context_descriptor_hi; -- 2.11.0