diff options
Diffstat (limited to 'drivers/char/agp/intel-gtt.c')
| -rw-r--r-- | drivers/char/agp/intel-gtt.c | 48 |
1 files changed, 26 insertions, 22 deletions
diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 9d25ebd50d8..1de45f96db9 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -1232,27 +1232,6 @@ static void intel_i9xx_setup_flush(void) "can't ioremap flush page - no chipset flushing\n"); } -static int intel_i9xx_configure(void) -{ - int i; - - intel_enable_gtt(); - - agp_bridge->gart_bus_addr = intel_private.gma_bus_addr; - - if (agp_bridge->driver->needs_scratch_page) { - for (i = intel_private.base.gtt_stolen_entries; i < - intel_private.base.gtt_total_entries; i++) { - writel(agp_bridge->scratch_page, intel_private.gtt+i); - } - readl(intel_private.gtt+i-1); /* PCI Posting. */ - } - - global_cache_flush(); - - return 0; -} - static void intel_i915_chipset_flush(struct agp_bridge_data *bridge) { if (intel_private.i9xx_flush_page) @@ -1342,6 +1321,30 @@ static void i965_write_entry(dma_addr_t addr, unsigned int entry, writel(addr | I810_PTE_VALID, intel_private.gtt + entry); } +static void gen6_write_entry(dma_addr_t addr, unsigned int entry, + unsigned int flags) +{ + unsigned int type_mask = flags & ~AGP_USER_CACHED_MEMORY_GFDT; + unsigned int gfdt = flags & AGP_USER_CACHED_MEMORY_GFDT; + u32 pte_flags; + + if (type_mask == AGP_USER_UNCACHED_MEMORY) + pte_flags = GEN6_PTE_UNCACHED; + else if (type_mask == AGP_USER_CACHED_MEMORY_LLC_MLC) { + pte_flags = GEN6_PTE_LLC; + if (gfdt) + pte_flags |= GEN6_PTE_GFDT; + } else { /* set 'normal'/'cached' to LLC by default */ + pte_flags = GEN6_PTE_LLC_MLC; + if (gfdt) + pte_flags |= GEN6_PTE_GFDT; + } + + /* gen6 has bit11-4 for physical addr bit39-32 */ + addr |= (addr >> 28) & 0xff0; + writel(addr | pte_flags, intel_private.gtt + entry); +} + static int i9xx_setup(void) { u32 reg_addr; @@ -1538,7 +1541,7 @@ static const struct agp_bridge_driver intel_gen6_driver = { .aperture_sizes = intel_fake_agp_sizes, .num_aperture_sizes = ARRAY_SIZE(intel_fake_agp_sizes), .needs_scratch_page = true, - .configure = intel_i9xx_configure, + .configure = intel_fake_agp_configure, .fetch_size = intel_fake_agp_fetch_size, .cleanup = intel_gtt_cleanup, .mask_memory = intel_gen6_mask_memory, @@ -1640,6 +1643,7 @@ static const struct intel_gtt_driver ironlake_gtt_driver = { static const struct intel_gtt_driver sandybridge_gtt_driver = { .gen = 6, .setup = i9xx_setup, + .write_entry = gen6_write_entry, }; /* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of |