diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2011-01-31 15:08:43 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2011-01-31 15:09:14 +0100 |
| commit | 51563cd53c4b1c1790fccd2e0af0e2b756589af9 (patch) | |
| tree | d2fedfc654ab4fa011feaca262f95481a89e232a /drivers/char/agp | |
| parent | d123375425d7df4b6081a631fc1203fceafa59b2 (diff) | |
| parent | 8161239a8bcce9ad6b537c04a1fa3b5c68bae693 (diff) | |
Merge branch 'tip/rtmutex' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into core/locking
*git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace tip/rtmutex:
rtmutex: Simplify PI algorithm and make highest prio task get lock
Diffstat (limited to 'drivers/char/agp')
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 826ab0939a1..fab3d3265ad 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -68,6 +68,7 @@ static struct _intel_private { phys_addr_t gma_bus_addr; u32 PGETBL_save; u32 __iomem *gtt; /* I915G */ + bool clear_fake_agp; /* on first access via agp, fill with scratch */ int num_dcache_entries; union { void __iomem *i9xx_flush_page; @@ -869,21 +870,12 @@ static int intel_fake_agp_free_gatt_table(struct agp_bridge_data *bridge) static int intel_fake_agp_configure(void) { - int i; - if (!intel_enable_gtt()) return -EIO; + intel_private.clear_fake_agp = true; agp_bridge->gart_bus_addr = intel_private.gma_bus_addr; - for (i = 0; i < intel_private.base.gtt_total_entries; i++) { - intel_private.driver->write_entry(intel_private.scratch_page_dma, - i, 0); - } - readl(intel_private.gtt+i-1); /* PCI Posting. */ - - global_cache_flush(); - return 0; } @@ -945,6 +937,13 @@ static int intel_fake_agp_insert_entries(struct agp_memory *mem, { int ret = -EINVAL; + if (intel_private.clear_fake_agp) { + int start = intel_private.base.stolen_size / PAGE_SIZE; + int end = intel_private.base.gtt_mappable_entries; + intel_gtt_clear_range(start, end - start); + intel_private.clear_fake_agp = false; + } + if (INTEL_GTT_GEN == 1 && type == AGP_DCACHE_MEMORY) return i810_insert_dcache_entries(mem, pg_start, type); |