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path: root/drivers/char/agp/intel-gtt.c
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Diffstat (limited to 'drivers/char/agp/intel-gtt.c')
-rw-r--r--drivers/char/agp/intel-gtt.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c
index 92aa43fa8d70..0b4188b9af7c 100644
--- a/drivers/char/agp/intel-gtt.c
+++ b/drivers/char/agp/intel-gtt.c
@@ -225,7 +225,7 @@ static int i810_insert_dcache_entries(struct agp_memory *mem, off_t pg_start,
intel_private.driver->write_entry(addr,
i, type);
}
- readl(intel_private.gtt+i-1);
+ wmb();
return 0;
}
@@ -329,7 +329,7 @@ static void i810_write_entry(dma_addr_t addr, unsigned int entry,
break;
}
- writel(addr | pte_flags, intel_private.gtt + entry);
+ writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
}
static const struct aper_size_info_fixed intel_fake_agp_sizes[] = {
@@ -735,7 +735,7 @@ static void i830_write_entry(dma_addr_t addr, unsigned int entry,
if (flags == AGP_USER_CACHED_MEMORY)
pte_flags |= I830_PTE_SYSTEM_CACHED;
- writel(addr | pte_flags, intel_private.gtt + entry);
+ writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
}
bool intel_enable_gtt(void)
@@ -858,7 +858,7 @@ void intel_gtt_insert_sg_entries(struct sg_table *st,
j++;
}
}
- readl(intel_private.gtt+j-1);
+ wmb();
}
EXPORT_SYMBOL(intel_gtt_insert_sg_entries);
@@ -875,7 +875,7 @@ static void intel_gtt_insert_pages(unsigned int first_entry,
intel_private.driver->write_entry(addr,
j, flags);
}
- readl(intel_private.gtt+j-1);
+ wmb();
}
static int intel_fake_agp_insert_entries(struct agp_memory *mem,
@@ -938,7 +938,7 @@ void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries)
intel_private.driver->write_entry(intel_private.scratch_page_dma,
i, 0);
}
- readl(intel_private.gtt+i-1);
+ wmb();
}
EXPORT_SYMBOL(intel_gtt_clear_range);
@@ -1106,7 +1106,7 @@ static void i965_write_entry(dma_addr_t addr,
/* Shift high bits down */
addr |= (addr >> 28) & 0xf0;
- writel(addr | pte_flags, intel_private.gtt + entry);
+ writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
}
static int i9xx_setup(void)