From 4741da925fa3e5acdd4da154f4803dad383e882f Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Sat, 24 Dec 2016 19:31:46 +0000 Subject: [PATCH] drm/i915/guc: Assert that all GGTT offsets used by the GuC are mappable Add an assertion to the plain i915_ggtt_offset() to double check that any offset we hand to the GuC is outside of its unmappable ranges. Signed-off-by: Chris Wilson Cc: Daniele Ceraolo Spurio Link: http://patchwork.freedesktop.org/patch/msgid/20161224193146.4402-1-chris@chris-wilson.co.uk Reviewed-by: Daniele Ceraolo Spurio --- drivers/gpu/drm/i915/i915_guc_submission.c | 14 +++++++------- drivers/gpu/drm/i915/intel_guc_loader.c | 6 +++--- drivers/gpu/drm/i915/intel_uc.h | 9 +++++++++ 3 files changed, 19 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c index 3e20fe2be811..30e012b9e93c 100644 --- a/drivers/gpu/drm/i915/i915_guc_submission.c +++ b/drivers/gpu/drm/i915/i915_guc_submission.c @@ -270,11 +270,11 @@ static void guc_ctx_desc_init(struct intel_guc *guc, /* The state page is after PPHWSP */ lrc->ring_lcra = - i915_ggtt_offset(ce->state) + LRC_STATE_PN * PAGE_SIZE; + guc_ggtt_offset(ce->state) + LRC_STATE_PN * PAGE_SIZE; lrc->context_id = (client->ctx_index << GUC_ELC_CTXID_OFFSET) | (guc_engine_id << GUC_ELC_ENGINE_OFFSET); - lrc->ring_begin = i915_ggtt_offset(ce->ring->vma); + lrc->ring_begin = guc_ggtt_offset(ce->ring->vma); lrc->ring_end = lrc->ring_begin + ce->ring->size - 1; lrc->ring_next_free_location = lrc->ring_begin; lrc->ring_current_tail_pointer_value = 0; @@ -290,7 +290,7 @@ static void guc_ctx_desc_init(struct intel_guc *guc, * The doorbell, process descriptor, and workqueue are all parts * of the client object, which the GuC will reference via the GGTT */ - gfx_addr = i915_ggtt_offset(client->vma); + gfx_addr = guc_ggtt_offset(client->vma); desc.db_trigger_phy = sg_dma_address(client->vma->pages->sgl) + client->doorbell_offset; desc.db_trigger_cpu = @@ -1226,7 +1226,7 @@ static void guc_log_create(struct intel_guc *guc) (GUC_LOG_ISR_PAGES << GUC_LOG_ISR_SHIFT) | (GUC_LOG_CRASH_PAGES << GUC_LOG_CRASH_SHIFT); - offset = i915_ggtt_offset(vma) >> PAGE_SHIFT; /* in pages */ + offset = guc_ggtt_offset(vma) >> PAGE_SHIFT; /* in pages */ guc->log.flags = (offset << GUC_LOG_BUF_ADDR_SHIFT) | flags; } @@ -1329,7 +1329,7 @@ static void guc_addon_create(struct intel_guc *guc) guc_policies_init(policies); ads->scheduler_policies = - i915_ggtt_offset(vma) + sizeof(struct guc_ads); + guc_ggtt_offset(vma) + sizeof(struct guc_ads); /* MMIO reg state */ reg_state = (void *)policies + sizeof(struct guc_policies); @@ -1495,7 +1495,7 @@ int intel_guc_suspend(struct drm_i915_private *dev_priv) /* any value greater than GUC_POWER_D0 */ data[1] = GUC_POWER_D1; /* first page is shared data with GuC */ - data[2] = i915_ggtt_offset(ctx->engine[RCS].state); + data[2] = guc_ggtt_offset(ctx->engine[RCS].state); return intel_guc_send(guc, data, ARRAY_SIZE(data)); } @@ -1522,7 +1522,7 @@ int intel_guc_resume(struct drm_i915_private *dev_priv) data[0] = INTEL_GUC_ACTION_EXIT_S_STATE; data[1] = GUC_POWER_D0; /* first page is shared data with GuC */ - data[2] = i915_ggtt_offset(ctx->engine[RCS].state); + data[2] = guc_ggtt_offset(ctx->engine[RCS].state); return intel_guc_send(guc, data, ARRAY_SIZE(data)); } diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c index 21db69705458..35d5690f47a2 100644 --- a/drivers/gpu/drm/i915/intel_guc_loader.c +++ b/drivers/gpu/drm/i915/intel_guc_loader.c @@ -220,14 +220,14 @@ static void guc_params_init(struct drm_i915_private *dev_priv) params[GUC_CTL_DEBUG] = GUC_LOG_DISABLED; if (guc->ads_vma) { - u32 ads = i915_ggtt_offset(guc->ads_vma) >> PAGE_SHIFT; + u32 ads = guc_ggtt_offset(guc->ads_vma) >> PAGE_SHIFT; params[GUC_CTL_DEBUG] |= ads << GUC_ADS_ADDR_SHIFT; params[GUC_CTL_DEBUG] |= GUC_ADS_ENABLED; } /* If GuC submission is enabled, set up additional parameters here */ if (i915.enable_guc_submission) { - u32 pgs = i915_ggtt_offset(dev_priv->guc.ctx_pool_vma); + u32 pgs = guc_ggtt_offset(dev_priv->guc.ctx_pool_vma); u32 ctx_in_16 = GUC_MAX_GPU_CONTEXTS / 16; pgs >>= PAGE_SHIFT; @@ -297,7 +297,7 @@ static int guc_ucode_xfer_dma(struct drm_i915_private *dev_priv, I915_WRITE(DMA_COPY_SIZE, guc_fw->header_size + guc_fw->ucode_size); /* Set the source address for the new blob */ - offset = i915_ggtt_offset(vma) + guc_fw->header_offset; + offset = guc_ggtt_offset(vma) + guc_fw->header_offset; I915_WRITE(DMA_ADDR_0_LOW, lower_32_bits(offset)); I915_WRITE(DMA_ADDR_0_HIGH, upper_32_bits(offset) & 0xFFFF); diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h index 11f56082b363..d556215e691f 100644 --- a/drivers/gpu/drm/i915/intel_uc.h +++ b/drivers/gpu/drm/i915/intel_uc.h @@ -28,6 +28,8 @@ #include "i915_guc_reg.h" #include "intel_ringbuffer.h" +#include "i915_vma.h" + struct drm_i915_gem_request; /* @@ -198,4 +200,11 @@ void i915_guc_register(struct drm_i915_private *dev_priv); void i915_guc_unregister(struct drm_i915_private *dev_priv); int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val); +static inline u32 guc_ggtt_offset(struct i915_vma *vma) +{ + u32 offset = i915_ggtt_offset(vma); + GEM_BUG_ON(offset < GUC_WOPCM_TOP); + return offset; +} + #endif -- 2.30.2