From c64f7ba5f1006d8c20eacafecf98d4d00a6902a0 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 23 Nov 2010 14:24:24 +0000 Subject: agp/intel: Remove confusion of stolen entries not stolen memory Signed-off-by: Chris Wilson --- drivers/char/agp/intel-gtt.c | 40 +++++++--------------------------------- 1 file changed, 7 insertions(+), 33 deletions(-) (limited to 'drivers/char/agp') diff --git a/drivers/char/agp/intel-gtt.c b/drivers/char/agp/intel-gtt.c index 19919ef..d2733e5 100644 --- a/drivers/char/agp/intel-gtt.c +++ b/drivers/char/agp/intel-gtt.c @@ -477,26 +477,17 @@ static const struct aper_size_info_fixed const intel_fake_agp_sizes[] = { {512, 131072, 7}, }; -static unsigned int intel_gtt_stolen_entries(void) +static unsigned int intel_gtt_stolen_size(void) { u16 gmch_ctrl; u8 rdct; int local = 0; static const int ddt[4] = { 0, 16, 32, 64 }; - unsigned int overhead_entries; unsigned int stolen_size = 0; pci_read_config_word(intel_private.bridge_dev, I830_GMCH_CTRL, &gmch_ctrl); - if (INTEL_GTT_GEN > 4 || IS_PINEVIEW) - overhead_entries = 0; - else - overhead_entries = intel_private.base.gtt_mappable_entries - / 1024; - - overhead_entries += 1; /* BIOS popup */ - if (intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82830_HB || intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) { switch (gmch_ctrl & I830_GMCH_GMS_MASK) { @@ -631,7 +622,7 @@ static unsigned int intel_gtt_stolen_entries(void) stolen_size = 0; } - return stolen_size/KB(4) - overhead_entries; + return stolen_size; } static void i965_adjust_pgetbl_size(unsigned int size_flag) @@ -817,8 +808,8 @@ static int intel_gtt_init(void) global_cache_flush(); /* FIXME: ? */ /* we have to call this as early as possible after the MMIO base address is known */ - intel_private.base.gtt_stolen_entries = intel_gtt_stolen_entries(); - if (intel_private.base.gtt_stolen_entries == 0) { + intel_private.base.stolen_size = intel_gtt_stolen_size(); + if (intel_private.base.stolen_size == 0) { intel_private.driver->cleanup(); iounmap(intel_private.registers); iounmap(intel_private.gtt); @@ -1006,8 +997,7 @@ static int intel_fake_agp_configure(void) agp_bridge->gart_bus_addr = intel_private.gma_bus_addr; - for (i = intel_private.base.gtt_stolen_entries; - i < intel_private.base.gtt_total_entries; i++) { + for (i = 0; i < intel_private.base.gtt_total_entries; i++) { intel_private.driver->write_entry(intel_private.scratch_page_dma, i, 0); } @@ -1065,17 +1055,7 @@ static int intel_fake_agp_insert_entries(struct agp_memory *mem, if (mem->page_count == 0) goto out; - if (pg_start < intel_private.base.gtt_stolen_entries) { - dev_printk(KERN_DEBUG, &intel_private.pcidev->dev, - "pg_start == 0x%.8lx, gtt_stolen_entries == 0x%.8x\n", - pg_start, intel_private.base.gtt_stolen_entries); - - dev_info(&intel_private.pcidev->dev, - "trying to insert into local/stolen memory\n"); - goto out_err; - } - - if ((pg_start + mem->page_count) > intel_private.base.gtt_total_entries) + if (pg_start + mem->page_count > intel_private.base.gtt_total_entries) goto out_err; if (type != mem->type) @@ -1118,12 +1098,6 @@ static int intel_fake_agp_remove_entries(struct agp_memory *mem, if (mem->page_count == 0) return 0; - if (pg_start < intel_private.base.gtt_stolen_entries) { - dev_info(&intel_private.pcidev->dev, - "trying to disable local/stolen memory\n"); - return -EINVAL; - } - if (USE_PCI_DMA_API && INTEL_GTT_GEN > 2) intel_agp_unmap_memory(mem); @@ -1629,7 +1603,7 @@ int intel_gmch_probe(struct pci_dev *pdev, } EXPORT_SYMBOL(intel_gmch_probe); -struct intel_gtt *intel_gtt_get(void) +const struct intel_gtt *intel_gtt_get(void) { return &intel_private.base; } -- cgit v1.1