diff options
Diffstat (limited to 'drivers/char/agp/intel-agp.c')
| -rw-r--r-- | drivers/char/agp/intel-agp.c | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c index a3e10dc7cc25..aa4248efc5d8 100644 --- a/drivers/char/agp/intel-agp.c +++ b/drivers/char/agp/intel-agp.c @@ -4,6 +4,7 @@ #include <linux/module.h> #include <linux/pci.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/pagemap.h> @@ -97,6 +98,9 @@ EXPORT_SYMBOL(intel_agp_enabled); #define IS_PINEVIEW (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_PINEVIEW_M_HB || \ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_PINEVIEW_HB) +#define IS_SNB (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB || \ + agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB) + #define IS_G4X (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_EAGLELAKE_HB || \ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G45_HB || \ @@ -107,8 +111,7 @@ EXPORT_SYMBOL(intel_agp_enabled); agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB || \ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB || \ agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB || \ - agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB || \ - agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB) + IS_SNB) extern int agp_memory_reserved; @@ -175,6 +178,10 @@ extern int agp_memory_reserved; #define SNB_GMCH_GMS_STOLEN_448M (0xe << 3) #define SNB_GMCH_GMS_STOLEN_480M (0xf << 3) #define SNB_GMCH_GMS_STOLEN_512M (0x10 << 3) +#define SNB_GTT_SIZE_0M (0 << 8) +#define SNB_GTT_SIZE_1M (1 << 8) +#define SNB_GTT_SIZE_2M (2 << 8) +#define SNB_GTT_SIZE_MASK (3 << 8) static const struct aper_size_info_fixed intel_i810_sizes[] = { @@ -1200,6 +1207,9 @@ static void intel_i9xx_setup_flush(void) if (intel_private.ifp_resource.start) return; + if (IS_SNB) + return; + /* setup a resource for this object */ intel_private.ifp_resource.name = "Intel Flush Page"; intel_private.ifp_resource.flags = IORESOURCE_MEM; @@ -1438,6 +1448,8 @@ static unsigned long intel_i965_mask_memory(struct agp_bridge_data *bridge, static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size) { + u16 snb_gmch_ctl; + switch (agp_bridge->dev->device) { case PCI_DEVICE_ID_INTEL_GM45_HB: case PCI_DEVICE_ID_INTEL_EAGLELAKE_HB: @@ -1449,9 +1461,26 @@ static void intel_i965_get_gtt_range(int *gtt_offset, int *gtt_size) case PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB: case PCI_DEVICE_ID_INTEL_IRONLAKE_MA_HB: case PCI_DEVICE_ID_INTEL_IRONLAKE_MC2_HB: + *gtt_offset = *gtt_size = MB(2); + break; case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_HB: case PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_HB: - *gtt_offset = *gtt_size = MB(2); + *gtt_offset = MB(2); + + pci_read_config_word(intel_private.pcidev, SNB_GMCH_CTRL, &snb_gmch_ctl); + switch (snb_gmch_ctl & SNB_GTT_SIZE_MASK) { + default: + case SNB_GTT_SIZE_0M: + printk(KERN_ERR "Bad GTT size mask: 0x%04x.\n", snb_gmch_ctl); + *gtt_size = MB(0); + break; + case SNB_GTT_SIZE_1M: + *gtt_size = MB(1); + break; + case SNB_GTT_SIZE_2M: + *gtt_size = MB(2); + break; + } break; default: *gtt_offset = *gtt_size = KB(512); @@ -1788,8 +1817,6 @@ static int intel_845_configure(void) pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1)); /* clear any possible error conditions */ pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c); - - intel_i830_setup_flush(); return 0; } @@ -2159,7 +2186,6 @@ static const struct agp_bridge_driver intel_845_driver = { .agp_destroy_page = agp_generic_destroy_page, .agp_destroy_pages = agp_generic_destroy_pages, .agp_type_to_mask_type = agp_generic_type_to_mask_type, - .chipset_flush = intel_i830_chipset_flush, }; static const struct agp_bridge_driver intel_850_driver = { |