Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Intel GTT (Graphics Translation Table) routines |
| 3 | * |
| 4 | * Caveat: This driver implements the linux agp interface, but this is far from |
| 5 | * a agp driver! GTT support ended up here for purely historical reasons: The |
| 6 | * old userspace intel graphics drivers needed an interface to map memory into |
| 7 | * the GTT. And the drm provides a default interface for graphic devices sitting |
| 8 | * on an agp port. So it made sense to fake the GTT support as an agp port to |
| 9 | * avoid having to create a new api. |
| 10 | * |
| 11 | * With gem this does not make much sense anymore, just needlessly complicates |
| 12 | * the code. But as long as the old graphics stack is still support, it's stuck |
| 13 | * here. |
| 14 | * |
| 15 | * /fairy-tale-mode off |
| 16 | */ |
| 17 | |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 18 | #include <linux/module.h> |
| 19 | #include <linux/pci.h> |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 20 | #include <linux/kernel.h> |
| 21 | #include <linux/pagemap.h> |
| 22 | #include <linux/agp_backend.h> |
Chris Wilson | bdb8b97 | 2010-12-22 11:37:09 +0000 | [diff] [blame] | 23 | #include <linux/delay.h> |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 24 | #include <asm/smp.h> |
| 25 | #include "agp.h" |
| 26 | #include "intel-agp.h" |
Daniel Vetter | 0ade638 | 2010-08-24 22:18:41 +0200 | [diff] [blame] | 27 | #include <drm/intel-gtt.h> |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 28 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 29 | /* |
| 30 | * If we have Intel graphics, we're not going to have anything other than |
| 31 | * an Intel IOMMU. So make the correct use of the PCI DMA API contingent |
Suresh Siddha | d3f1381 | 2011-08-23 17:05:25 -0700 | [diff] [blame] | 32 | * on the Intel IOMMU support (CONFIG_INTEL_IOMMU). |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 33 | * Only newer chipsets need to bother with this, of course. |
| 34 | */ |
Suresh Siddha | d3f1381 | 2011-08-23 17:05:25 -0700 | [diff] [blame] | 35 | #ifdef CONFIG_INTEL_IOMMU |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 36 | #define USE_PCI_DMA_API 1 |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 37 | #else |
| 38 | #define USE_PCI_DMA_API 0 |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 39 | #endif |
| 40 | |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 41 | struct intel_gtt_driver { |
| 42 | unsigned int gen : 8; |
| 43 | unsigned int is_g33 : 1; |
| 44 | unsigned int is_pineview : 1; |
| 45 | unsigned int is_ironlake : 1; |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 46 | unsigned int has_pgtbl_enable : 1; |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 47 | unsigned int dma_mask_size : 8; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 48 | /* Chipset specific GTT setup */ |
| 49 | int (*setup)(void); |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 50 | /* This should undo anything done in ->setup() save the unmapping |
| 51 | * of the mmio register file, that's done in the generic code. */ |
| 52 | void (*cleanup)(void); |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 53 | void (*write_entry)(dma_addr_t addr, unsigned int entry, unsigned int flags); |
| 54 | /* Flags is a more or less chipset specific opaque value. |
| 55 | * For chipsets that need to support old ums (non-gem) code, this |
| 56 | * needs to be identical to the various supported agp memory types! */ |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 57 | bool (*check_flags)(unsigned int flags); |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 58 | void (*chipset_flush)(void); |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 59 | }; |
| 60 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 61 | static struct _intel_private { |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 62 | const struct intel_gtt_driver *driver; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 63 | struct pci_dev *pcidev; /* device one */ |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 64 | struct pci_dev *bridge_dev; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 65 | u8 __iomem *registers; |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 66 | phys_addr_t gtt_phys_addr; |
Daniel Vetter | b3eafc5 | 2010-09-23 20:04:17 +0200 | [diff] [blame] | 67 | u32 PGETBL_save; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 68 | u32 __iomem *gtt; /* I915G */ |
Chris Wilson | bee4a18 | 2011-01-21 10:54:32 +0000 | [diff] [blame] | 69 | bool clear_fake_agp; /* on first access via agp, fill with scratch */ |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 70 | int num_dcache_entries; |
Chris Wilson | bdb8b97 | 2010-12-22 11:37:09 +0000 | [diff] [blame] | 71 | void __iomem *i9xx_flush_page; |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 72 | char *i81x_gtt_table; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 73 | struct resource ifp_resource; |
| 74 | int resource_valid; |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 75 | struct page *scratch_page; |
Ben Widawsky | 9c61a32 | 2013-01-18 12:30:32 -0800 | [diff] [blame] | 76 | phys_addr_t scratch_page_dma; |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 77 | int refcount; |
Ben Widawsky | 8d2e630 | 2013-01-18 12:30:33 -0800 | [diff] [blame] | 78 | /* Whether i915 needs to use the dmar apis or not. */ |
| 79 | unsigned int needs_dmar : 1; |
Ben Widawsky | e5c6537 | 2013-01-18 12:30:34 -0800 | [diff] [blame] | 80 | phys_addr_t gma_bus_addr; |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 81 | /* Size of memory reserved for graphics by the BIOS */ |
| 82 | unsigned int stolen_size; |
| 83 | /* Total number of gtt entries. */ |
| 84 | unsigned int gtt_total_entries; |
| 85 | /* Part of the gtt that is mappable by the cpu, for those chips where |
| 86 | * this is not the full gtt. */ |
| 87 | unsigned int gtt_mappable_entries; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 88 | } intel_private; |
| 89 | |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 90 | #define INTEL_GTT_GEN intel_private.driver->gen |
| 91 | #define IS_G33 intel_private.driver->is_g33 |
| 92 | #define IS_PINEVIEW intel_private.driver->is_pineview |
| 93 | #define IS_IRONLAKE intel_private.driver->is_ironlake |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 94 | #define HAS_PGTBL_EN intel_private.driver->has_pgtbl_enable |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 95 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 96 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 97 | static int intel_gtt_map_memory(struct page **pages, |
| 98 | unsigned int num_entries, |
| 99 | struct sg_table *st) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 100 | { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 101 | struct scatterlist *sg; |
| 102 | int i; |
| 103 | |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 104 | DBG("try mapping %lu pages\n", (unsigned long)num_entries); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 105 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 106 | if (sg_alloc_table(st, num_entries, GFP_KERNEL)) |
Chris Wilson | 831cd44 | 2010-07-24 18:29:37 +0100 | [diff] [blame] | 107 | goto err; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 108 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 109 | for_each_sg(st->sgl, sg, num_entries, i) |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 110 | sg_set_page(sg, pages[i], PAGE_SIZE, 0); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 111 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 112 | if (!pci_map_sg(intel_private.pcidev, |
| 113 | st->sgl, st->nents, PCI_DMA_BIDIRECTIONAL)) |
Chris Wilson | 831cd44 | 2010-07-24 18:29:37 +0100 | [diff] [blame] | 114 | goto err; |
| 115 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 116 | return 0; |
Chris Wilson | 831cd44 | 2010-07-24 18:29:37 +0100 | [diff] [blame] | 117 | |
| 118 | err: |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 119 | sg_free_table(st); |
Chris Wilson | 831cd44 | 2010-07-24 18:29:37 +0100 | [diff] [blame] | 120 | return -ENOMEM; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 121 | } |
| 122 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 123 | static void intel_gtt_unmap_memory(struct scatterlist *sg_list, int num_sg) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 124 | { |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 125 | struct sg_table st; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 126 | DBG("try unmapping %lu pages\n", (unsigned long)mem->page_count); |
| 127 | |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 128 | pci_unmap_sg(intel_private.pcidev, sg_list, |
| 129 | num_sg, PCI_DMA_BIDIRECTIONAL); |
| 130 | |
| 131 | st.sgl = sg_list; |
| 132 | st.orig_nents = st.nents = num_sg; |
| 133 | |
| 134 | sg_free_table(&st); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 135 | } |
| 136 | |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 137 | static void intel_fake_agp_enable(struct agp_bridge_data *bridge, u32 mode) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 138 | { |
| 139 | return; |
| 140 | } |
| 141 | |
| 142 | /* Exists to support ARGB cursors */ |
| 143 | static struct page *i8xx_alloc_pages(void) |
| 144 | { |
| 145 | struct page *page; |
| 146 | |
| 147 | page = alloc_pages(GFP_KERNEL | GFP_DMA32, 2); |
| 148 | if (page == NULL) |
| 149 | return NULL; |
| 150 | |
| 151 | if (set_pages_uc(page, 4) < 0) { |
| 152 | set_pages_wb(page, 4); |
| 153 | __free_pages(page, 2); |
| 154 | return NULL; |
| 155 | } |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 156 | atomic_inc(&agp_bridge->current_memory_agp); |
| 157 | return page; |
| 158 | } |
| 159 | |
| 160 | static void i8xx_destroy_pages(struct page *page) |
| 161 | { |
| 162 | if (page == NULL) |
| 163 | return; |
| 164 | |
| 165 | set_pages_wb(page, 4); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 166 | __free_pages(page, 2); |
| 167 | atomic_dec(&agp_bridge->current_memory_agp); |
| 168 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 169 | #endif |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 170 | |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 171 | #define I810_GTT_ORDER 4 |
| 172 | static int i810_setup(void) |
| 173 | { |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 174 | phys_addr_t reg_addr; |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 175 | char *gtt_table; |
| 176 | |
| 177 | /* i81x does not preallocate the gtt. It's always 64kb in size. */ |
| 178 | gtt_table = alloc_gatt_pages(I810_GTT_ORDER); |
| 179 | if (gtt_table == NULL) |
| 180 | return -ENOMEM; |
| 181 | intel_private.i81x_gtt_table = gtt_table; |
| 182 | |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 183 | reg_addr = pci_resource_start(intel_private.pcidev, I810_MMADR_BAR); |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 184 | |
| 185 | intel_private.registers = ioremap(reg_addr, KB(64)); |
| 186 | if (!intel_private.registers) |
| 187 | return -ENOMEM; |
| 188 | |
| 189 | writel(virt_to_phys(gtt_table) | I810_PGETBL_ENABLED, |
| 190 | intel_private.registers+I810_PGETBL_CTL); |
| 191 | |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 192 | intel_private.gtt_phys_addr = reg_addr + I810_PTE_BASE; |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 193 | |
| 194 | if ((readl(intel_private.registers+I810_DRAM_CTL) |
| 195 | & I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) { |
| 196 | dev_info(&intel_private.pcidev->dev, |
| 197 | "detected 4MB dedicated video ram\n"); |
| 198 | intel_private.num_dcache_entries = 1024; |
| 199 | } |
| 200 | |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static void i810_cleanup(void) |
| 205 | { |
| 206 | writel(0, intel_private.registers+I810_PGETBL_CTL); |
| 207 | free_gatt_pages(intel_private.i81x_gtt_table, I810_GTT_ORDER); |
| 208 | } |
| 209 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 210 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 211 | static int i810_insert_dcache_entries(struct agp_memory *mem, off_t pg_start, |
| 212 | int type) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 213 | { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 214 | int i; |
| 215 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 216 | if ((pg_start + mem->page_count) |
| 217 | > intel_private.num_dcache_entries) |
| 218 | return -EINVAL; |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 219 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 220 | if (!mem->is_flushed) |
| 221 | global_cache_flush(); |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 222 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 223 | for (i = pg_start; i < (pg_start + mem->page_count); i++) { |
| 224 | dma_addr_t addr = i << PAGE_SHIFT; |
| 225 | intel_private.driver->write_entry(addr, |
| 226 | i, type); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 227 | } |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 228 | wmb(); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 229 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 230 | return 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 231 | } |
| 232 | |
| 233 | /* |
| 234 | * The i810/i830 requires a physical address to program its mouse |
| 235 | * pointer into hardware. |
| 236 | * However the Xserver still writes to it through the agp aperture. |
| 237 | */ |
| 238 | static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type) |
| 239 | { |
| 240 | struct agp_memory *new; |
| 241 | struct page *page; |
| 242 | |
| 243 | switch (pg_count) { |
| 244 | case 1: page = agp_bridge->driver->agp_alloc_page(agp_bridge); |
| 245 | break; |
| 246 | case 4: |
| 247 | /* kludge to get 4 physical pages for ARGB cursor */ |
| 248 | page = i8xx_alloc_pages(); |
| 249 | break; |
| 250 | default: |
| 251 | return NULL; |
| 252 | } |
| 253 | |
| 254 | if (page == NULL) |
| 255 | return NULL; |
| 256 | |
| 257 | new = agp_create_memory(pg_count); |
| 258 | if (new == NULL) |
| 259 | return NULL; |
| 260 | |
| 261 | new->pages[0] = page; |
| 262 | if (pg_count == 4) { |
| 263 | /* kludge to get 4 physical pages for ARGB cursor */ |
| 264 | new->pages[1] = new->pages[0] + 1; |
| 265 | new->pages[2] = new->pages[1] + 1; |
| 266 | new->pages[3] = new->pages[2] + 1; |
| 267 | } |
| 268 | new->page_count = pg_count; |
| 269 | new->num_scratch_pages = pg_count; |
| 270 | new->type = AGP_PHYS_MEMORY; |
| 271 | new->physical = page_to_phys(new->pages[0]); |
| 272 | return new; |
| 273 | } |
| 274 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 275 | static void intel_i810_free_by_type(struct agp_memory *curr) |
| 276 | { |
| 277 | agp_free_key(curr->key); |
| 278 | if (curr->type == AGP_PHYS_MEMORY) { |
| 279 | if (curr->page_count == 4) |
| 280 | i8xx_destroy_pages(curr->pages[0]); |
| 281 | else { |
| 282 | agp_bridge->driver->agp_destroy_page(curr->pages[0], |
| 283 | AGP_PAGE_DESTROY_UNMAP); |
| 284 | agp_bridge->driver->agp_destroy_page(curr->pages[0], |
| 285 | AGP_PAGE_DESTROY_FREE); |
| 286 | } |
| 287 | agp_free_page_array(curr); |
| 288 | } |
| 289 | kfree(curr); |
| 290 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 291 | #endif |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 292 | |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 293 | static int intel_gtt_setup_scratch_page(void) |
| 294 | { |
| 295 | struct page *page; |
| 296 | dma_addr_t dma_addr; |
| 297 | |
| 298 | page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO); |
| 299 | if (page == NULL) |
| 300 | return -ENOMEM; |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 301 | set_pages_uc(page, 1); |
| 302 | |
Ben Widawsky | 8d2e630 | 2013-01-18 12:30:33 -0800 | [diff] [blame] | 303 | if (intel_private.needs_dmar) { |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 304 | dma_addr = pci_map_page(intel_private.pcidev, page, 0, |
| 305 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
| 306 | if (pci_dma_mapping_error(intel_private.pcidev, dma_addr)) |
| 307 | return -EINVAL; |
| 308 | |
Ben Widawsky | 9c61a32 | 2013-01-18 12:30:32 -0800 | [diff] [blame] | 309 | intel_private.scratch_page_dma = dma_addr; |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 310 | } else |
Ben Widawsky | 9c61a32 | 2013-01-18 12:30:32 -0800 | [diff] [blame] | 311 | intel_private.scratch_page_dma = page_to_phys(page); |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 312 | |
| 313 | intel_private.scratch_page = page; |
| 314 | |
| 315 | return 0; |
| 316 | } |
| 317 | |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 318 | static void i810_write_entry(dma_addr_t addr, unsigned int entry, |
| 319 | unsigned int flags) |
| 320 | { |
| 321 | u32 pte_flags = I810_PTE_VALID; |
| 322 | |
| 323 | switch (flags) { |
| 324 | case AGP_DCACHE_MEMORY: |
| 325 | pte_flags |= I810_PTE_LOCAL; |
| 326 | break; |
| 327 | case AGP_USER_CACHED_MEMORY: |
| 328 | pte_flags |= I830_PTE_SYSTEM_CACHED; |
| 329 | break; |
| 330 | } |
| 331 | |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 332 | writel_relaxed(addr | pte_flags, intel_private.gtt + entry); |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 333 | } |
| 334 | |
Chris Wilson | 7bdc9ab | 2010-11-09 17:53:20 +0000 | [diff] [blame] | 335 | static const struct aper_size_info_fixed intel_fake_agp_sizes[] = { |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 336 | {32, 8192, 3}, |
| 337 | {64, 16384, 4}, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 338 | {128, 32768, 5}, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 339 | {256, 65536, 6}, |
| 340 | {512, 131072, 7}, |
| 341 | }; |
| 342 | |
Chris Wilson | c64f7ba | 2010-11-23 14:24:24 +0000 | [diff] [blame] | 343 | static unsigned int intel_gtt_stolen_size(void) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 344 | { |
| 345 | u16 gmch_ctrl; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 346 | u8 rdct; |
| 347 | int local = 0; |
| 348 | static const int ddt[4] = { 0, 16, 32, 64 }; |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 349 | unsigned int stolen_size = 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 350 | |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 351 | if (INTEL_GTT_GEN == 1) |
| 352 | return 0; /* no stolen mem on i81x */ |
| 353 | |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 354 | pci_read_config_word(intel_private.bridge_dev, |
| 355 | I830_GMCH_CTRL, &gmch_ctrl); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 356 | |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 357 | if (intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82830_HB || |
| 358 | intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 359 | switch (gmch_ctrl & I830_GMCH_GMS_MASK) { |
| 360 | case I830_GMCH_GMS_STOLEN_512: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 361 | stolen_size = KB(512); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 362 | break; |
| 363 | case I830_GMCH_GMS_STOLEN_1024: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 364 | stolen_size = MB(1); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 365 | break; |
| 366 | case I830_GMCH_GMS_STOLEN_8192: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 367 | stolen_size = MB(8); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 368 | break; |
| 369 | case I830_GMCH_GMS_LOCAL: |
| 370 | rdct = readb(intel_private.registers+I830_RDRAM_CHANNEL_TYPE); |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 371 | stolen_size = (I830_RDRAM_ND(rdct) + 1) * |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 372 | MB(ddt[I830_RDRAM_DDT(rdct)]); |
| 373 | local = 1; |
| 374 | break; |
| 375 | default: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 376 | stolen_size = 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 377 | break; |
| 378 | } |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 379 | } else { |
| 380 | switch (gmch_ctrl & I855_GMCH_GMS_MASK) { |
| 381 | case I855_GMCH_GMS_STOLEN_1M: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 382 | stolen_size = MB(1); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 383 | break; |
| 384 | case I855_GMCH_GMS_STOLEN_4M: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 385 | stolen_size = MB(4); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 386 | break; |
| 387 | case I855_GMCH_GMS_STOLEN_8M: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 388 | stolen_size = MB(8); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 389 | break; |
| 390 | case I855_GMCH_GMS_STOLEN_16M: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 391 | stolen_size = MB(16); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 392 | break; |
| 393 | case I855_GMCH_GMS_STOLEN_32M: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 394 | stolen_size = MB(32); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 395 | break; |
| 396 | case I915_GMCH_GMS_STOLEN_48M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 397 | stolen_size = MB(48); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 398 | break; |
| 399 | case I915_GMCH_GMS_STOLEN_64M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 400 | stolen_size = MB(64); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 401 | break; |
| 402 | case G33_GMCH_GMS_STOLEN_128M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 403 | stolen_size = MB(128); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 404 | break; |
| 405 | case G33_GMCH_GMS_STOLEN_256M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 406 | stolen_size = MB(256); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 407 | break; |
| 408 | case INTEL_GMCH_GMS_STOLEN_96M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 409 | stolen_size = MB(96); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 410 | break; |
| 411 | case INTEL_GMCH_GMS_STOLEN_160M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 412 | stolen_size = MB(160); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 413 | break; |
| 414 | case INTEL_GMCH_GMS_STOLEN_224M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 415 | stolen_size = MB(224); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 416 | break; |
| 417 | case INTEL_GMCH_GMS_STOLEN_352M: |
Daniel Vetter | 77ad498 | 2010-08-27 16:25:54 +0200 | [diff] [blame] | 418 | stolen_size = MB(352); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 419 | break; |
| 420 | default: |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 421 | stolen_size = 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 422 | break; |
| 423 | } |
| 424 | } |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 425 | |
Chris Wilson | 1b6064d | 2010-11-23 12:33:54 +0000 | [diff] [blame] | 426 | if (stolen_size > 0) { |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 427 | dev_info(&intel_private.bridge_dev->dev, "detected %dK %s memory\n", |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 428 | stolen_size / KB(1), local ? "local" : "stolen"); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 429 | } else { |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 430 | dev_info(&intel_private.bridge_dev->dev, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 431 | "no pre-allocated video memory detected\n"); |
Daniel Vetter | d8d9abc | 2010-08-27 16:13:52 +0200 | [diff] [blame] | 432 | stolen_size = 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 433 | } |
| 434 | |
Chris Wilson | c64f7ba | 2010-11-23 14:24:24 +0000 | [diff] [blame] | 435 | return stolen_size; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 436 | } |
| 437 | |
Daniel Vetter | 2017284 | 2010-09-24 18:25:59 +0200 | [diff] [blame] | 438 | static void i965_adjust_pgetbl_size(unsigned int size_flag) |
| 439 | { |
| 440 | u32 pgetbl_ctl, pgetbl_ctl2; |
| 441 | |
| 442 | /* ensure that ppgtt is disabled */ |
| 443 | pgetbl_ctl2 = readl(intel_private.registers+I965_PGETBL_CTL2); |
| 444 | pgetbl_ctl2 &= ~I810_PGETBL_ENABLED; |
| 445 | writel(pgetbl_ctl2, intel_private.registers+I965_PGETBL_CTL2); |
| 446 | |
| 447 | /* write the new ggtt size */ |
| 448 | pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL); |
| 449 | pgetbl_ctl &= ~I965_PGETBL_SIZE_MASK; |
| 450 | pgetbl_ctl |= size_flag; |
| 451 | writel(pgetbl_ctl, intel_private.registers+I810_PGETBL_CTL); |
| 452 | } |
| 453 | |
| 454 | static unsigned int i965_gtt_total_entries(void) |
| 455 | { |
| 456 | int size; |
| 457 | u32 pgetbl_ctl; |
| 458 | u16 gmch_ctl; |
| 459 | |
| 460 | pci_read_config_word(intel_private.bridge_dev, |
| 461 | I830_GMCH_CTRL, &gmch_ctl); |
| 462 | |
| 463 | if (INTEL_GTT_GEN == 5) { |
| 464 | switch (gmch_ctl & G4x_GMCH_SIZE_MASK) { |
| 465 | case G4x_GMCH_SIZE_1M: |
| 466 | case G4x_GMCH_SIZE_VT_1M: |
| 467 | i965_adjust_pgetbl_size(I965_PGETBL_SIZE_1MB); |
| 468 | break; |
| 469 | case G4x_GMCH_SIZE_VT_1_5M: |
| 470 | i965_adjust_pgetbl_size(I965_PGETBL_SIZE_1_5MB); |
| 471 | break; |
| 472 | case G4x_GMCH_SIZE_2M: |
| 473 | case G4x_GMCH_SIZE_VT_2M: |
| 474 | i965_adjust_pgetbl_size(I965_PGETBL_SIZE_2MB); |
| 475 | break; |
| 476 | } |
| 477 | } |
| 478 | |
| 479 | pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL); |
| 480 | |
| 481 | switch (pgetbl_ctl & I965_PGETBL_SIZE_MASK) { |
| 482 | case I965_PGETBL_SIZE_128KB: |
| 483 | size = KB(128); |
| 484 | break; |
| 485 | case I965_PGETBL_SIZE_256KB: |
| 486 | size = KB(256); |
| 487 | break; |
| 488 | case I965_PGETBL_SIZE_512KB: |
| 489 | size = KB(512); |
| 490 | break; |
| 491 | /* GTT pagetable sizes bigger than 512KB are not possible on G33! */ |
| 492 | case I965_PGETBL_SIZE_1MB: |
| 493 | size = KB(1024); |
| 494 | break; |
| 495 | case I965_PGETBL_SIZE_2MB: |
| 496 | size = KB(2048); |
| 497 | break; |
| 498 | case I965_PGETBL_SIZE_1_5MB: |
| 499 | size = KB(1024 + 512); |
| 500 | break; |
| 501 | default: |
| 502 | dev_info(&intel_private.pcidev->dev, |
| 503 | "unknown page table size, assuming 512KB\n"); |
| 504 | size = KB(512); |
| 505 | } |
| 506 | |
| 507 | return size/4; |
| 508 | } |
| 509 | |
Daniel Vetter | fbe4078 | 2010-08-27 17:12:41 +0200 | [diff] [blame] | 510 | static unsigned int intel_gtt_total_entries(void) |
| 511 | { |
Daniel Vetter | 2017284 | 2010-09-24 18:25:59 +0200 | [diff] [blame] | 512 | if (IS_G33 || INTEL_GTT_GEN == 4 || INTEL_GTT_GEN == 5) |
| 513 | return i965_gtt_total_entries(); |
Ben Widawsky | 009946f | 2012-11-04 09:21:29 -0800 | [diff] [blame] | 514 | else { |
Daniel Vetter | fbe4078 | 2010-08-27 17:12:41 +0200 | [diff] [blame] | 515 | /* On previous hardware, the GTT size was just what was |
| 516 | * required to map the aperture. |
| 517 | */ |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 518 | return intel_private.gtt_mappable_entries; |
Daniel Vetter | fbe4078 | 2010-08-27 17:12:41 +0200 | [diff] [blame] | 519 | } |
Daniel Vetter | fbe4078 | 2010-08-27 17:12:41 +0200 | [diff] [blame] | 520 | } |
Daniel Vetter | fbe4078 | 2010-08-27 17:12:41 +0200 | [diff] [blame] | 521 | |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 522 | static unsigned int intel_gtt_mappable_entries(void) |
| 523 | { |
| 524 | unsigned int aperture_size; |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 525 | |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 526 | if (INTEL_GTT_GEN == 1) { |
| 527 | u32 smram_miscc; |
| 528 | |
| 529 | pci_read_config_dword(intel_private.bridge_dev, |
| 530 | I810_SMRAM_MISCC, &smram_miscc); |
| 531 | |
| 532 | if ((smram_miscc & I810_GFX_MEM_WIN_SIZE) |
| 533 | == I810_GFX_MEM_WIN_32M) |
| 534 | aperture_size = MB(32); |
| 535 | else |
| 536 | aperture_size = MB(64); |
| 537 | } else if (INTEL_GTT_GEN == 2) { |
Chris Wilson | b1c5b0f | 2010-09-14 19:30:13 +0100 | [diff] [blame] | 538 | u16 gmch_ctrl; |
| 539 | |
| 540 | pci_read_config_word(intel_private.bridge_dev, |
| 541 | I830_GMCH_CTRL, &gmch_ctrl); |
| 542 | |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 543 | if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_64M) |
Chris Wilson | b1c5b0f | 2010-09-14 19:30:13 +0100 | [diff] [blame] | 544 | aperture_size = MB(64); |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 545 | else |
Chris Wilson | b1c5b0f | 2010-09-14 19:30:13 +0100 | [diff] [blame] | 546 | aperture_size = MB(128); |
Daniel Vetter | 239918f | 2010-08-31 22:30:43 +0200 | [diff] [blame] | 547 | } else { |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 548 | /* 9xx supports large sizes, just look at the length */ |
| 549 | aperture_size = pci_resource_len(intel_private.pcidev, 2); |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 550 | } |
| 551 | |
| 552 | return aperture_size >> PAGE_SHIFT; |
| 553 | } |
| 554 | |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 555 | static void intel_gtt_teardown_scratch_page(void) |
| 556 | { |
| 557 | set_pages_wb(intel_private.scratch_page, 1); |
Daniel Vetter | 9f5ac8e | 2016-01-27 14:37:58 +0100 | [diff] [blame] | 558 | if (intel_private.needs_dmar) |
| 559 | pci_unmap_page(intel_private.pcidev, |
| 560 | intel_private.scratch_page_dma, |
| 561 | PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 562 | __free_page(intel_private.scratch_page); |
| 563 | } |
| 564 | |
| 565 | static void intel_gtt_cleanup(void) |
| 566 | { |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 567 | intel_private.driver->cleanup(); |
| 568 | |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 569 | iounmap(intel_private.gtt); |
| 570 | iounmap(intel_private.registers); |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 571 | |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 572 | intel_gtt_teardown_scratch_page(); |
| 573 | } |
| 574 | |
Chris Wilson | da88a5f | 2013-02-13 09:31:53 +0000 | [diff] [blame] | 575 | /* Certain Gen5 chipsets require require idling the GPU before |
| 576 | * unmapping anything from the GTT when VT-d is enabled. |
| 577 | */ |
| 578 | static inline int needs_ilk_vtd_wa(void) |
| 579 | { |
| 580 | #ifdef CONFIG_INTEL_IOMMU |
| 581 | const unsigned short gpu_devid = intel_private.pcidev->device; |
| 582 | |
| 583 | /* Query intel_iommu to see if we need the workaround. Presumably that |
| 584 | * was loaded first. |
| 585 | */ |
Chris Wilson | 8b572a4 | 2015-06-28 14:18:16 +0100 | [diff] [blame] | 586 | if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG || |
Chris Wilson | da88a5f | 2013-02-13 09:31:53 +0000 | [diff] [blame] | 587 | gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) && |
| 588 | intel_iommu_gfx_mapped) |
| 589 | return 1; |
| 590 | #endif |
| 591 | return 0; |
| 592 | } |
| 593 | |
| 594 | static bool intel_gtt_can_wc(void) |
| 595 | { |
| 596 | if (INTEL_GTT_GEN <= 2) |
| 597 | return false; |
| 598 | |
| 599 | if (INTEL_GTT_GEN >= 6) |
| 600 | return false; |
| 601 | |
| 602 | /* Reports of major corruption with ILK vt'd enabled */ |
| 603 | if (needs_ilk_vtd_wa()) |
| 604 | return false; |
| 605 | |
| 606 | return true; |
| 607 | } |
| 608 | |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 609 | static int intel_gtt_init(void) |
| 610 | { |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 611 | u32 gtt_map_size; |
Yinghai Lu | 545b0a7 | 2014-01-03 18:28:06 -0700 | [diff] [blame] | 612 | int ret, bar; |
Daniel Vetter | 3b15a9d | 2010-08-29 14:18:49 +0200 | [diff] [blame] | 613 | |
Daniel Vetter | 3b15a9d | 2010-08-29 14:18:49 +0200 | [diff] [blame] | 614 | ret = intel_private.driver->setup(); |
| 615 | if (ret != 0) |
| 616 | return ret; |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 617 | |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 618 | intel_private.gtt_mappable_entries = intel_gtt_mappable_entries(); |
| 619 | intel_private.gtt_total_entries = intel_gtt_total_entries(); |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 620 | |
Daniel Vetter | b3eafc5 | 2010-09-23 20:04:17 +0200 | [diff] [blame] | 621 | /* save the PGETBL reg for resume */ |
| 622 | intel_private.PGETBL_save = |
| 623 | readl(intel_private.registers+I810_PGETBL_CTL) |
| 624 | & ~I810_PGETBL_ENABLED; |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 625 | /* we only ever restore the register when enabling the PGTBL... */ |
| 626 | if (HAS_PGTBL_EN) |
| 627 | intel_private.PGETBL_save |= I810_PGETBL_ENABLED; |
Daniel Vetter | b3eafc5 | 2010-09-23 20:04:17 +0200 | [diff] [blame] | 628 | |
Daniel Vetter | 0af9e92 | 2010-09-12 14:04:03 +0200 | [diff] [blame] | 629 | dev_info(&intel_private.bridge_dev->dev, |
| 630 | "detected gtt size: %dK total, %dK mappable\n", |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 631 | intel_private.gtt_total_entries * 4, |
| 632 | intel_private.gtt_mappable_entries * 4); |
Daniel Vetter | 0af9e92 | 2010-09-12 14:04:03 +0200 | [diff] [blame] | 633 | |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 634 | gtt_map_size = intel_private.gtt_total_entries * 4; |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 635 | |
Chris Wilson | edef7e6 | 2012-09-14 11:57:47 +0100 | [diff] [blame] | 636 | intel_private.gtt = NULL; |
Chris Wilson | da88a5f | 2013-02-13 09:31:53 +0000 | [diff] [blame] | 637 | if (intel_gtt_can_wc()) |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 638 | intel_private.gtt = ioremap_wc(intel_private.gtt_phys_addr, |
Chris Wilson | edef7e6 | 2012-09-14 11:57:47 +0100 | [diff] [blame] | 639 | gtt_map_size); |
| 640 | if (intel_private.gtt == NULL) |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 641 | intel_private.gtt = ioremap(intel_private.gtt_phys_addr, |
Chris Wilson | edef7e6 | 2012-09-14 11:57:47 +0100 | [diff] [blame] | 642 | gtt_map_size); |
| 643 | if (intel_private.gtt == NULL) { |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 644 | intel_private.driver->cleanup(); |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 645 | iounmap(intel_private.registers); |
| 646 | return -ENOMEM; |
| 647 | } |
| 648 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 649 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 650 | global_cache_flush(); /* FIXME: ? */ |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 651 | #endif |
Daniel Vetter | f67eab6 | 2010-08-29 17:27:36 +0200 | [diff] [blame] | 652 | |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 653 | intel_private.stolen_size = intel_gtt_stolen_size(); |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 654 | |
Ben Widawsky | 8d2e630 | 2013-01-18 12:30:33 -0800 | [diff] [blame] | 655 | intel_private.needs_dmar = USE_PCI_DMA_API && INTEL_GTT_GEN > 2; |
Dave Airlie | a46f310 | 2011-01-12 11:38:37 +1000 | [diff] [blame] | 656 | |
Daniel Vetter | 0e87d2b | 2010-09-07 22:11:15 +0200 | [diff] [blame] | 657 | ret = intel_gtt_setup_scratch_page(); |
| 658 | if (ret != 0) { |
| 659 | intel_gtt_cleanup(); |
| 660 | return ret; |
| 661 | } |
| 662 | |
Daniel Vetter | 32e3cd6 | 2012-06-07 15:56:02 +0200 | [diff] [blame] | 663 | if (INTEL_GTT_GEN <= 2) |
Yinghai Lu | 545b0a7 | 2014-01-03 18:28:06 -0700 | [diff] [blame] | 664 | bar = I810_GMADR_BAR; |
Daniel Vetter | 32e3cd6 | 2012-06-07 15:56:02 +0200 | [diff] [blame] | 665 | else |
Yinghai Lu | 545b0a7 | 2014-01-03 18:28:06 -0700 | [diff] [blame] | 666 | bar = I915_GMADR_BAR; |
Daniel Vetter | 32e3cd6 | 2012-06-07 15:56:02 +0200 | [diff] [blame] | 667 | |
Yinghai Lu | 545b0a7 | 2014-01-03 18:28:06 -0700 | [diff] [blame] | 668 | intel_private.gma_bus_addr = pci_bus_address(intel_private.pcidev, bar); |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 669 | return 0; |
| 670 | } |
| 671 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 672 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 673 | static int intel_fake_agp_fetch_size(void) |
| 674 | { |
Chris Wilson | 9e76e7b | 2010-09-14 12:12:11 +0100 | [diff] [blame] | 675 | int num_sizes = ARRAY_SIZE(intel_fake_agp_sizes); |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 676 | unsigned int aper_size; |
| 677 | int i; |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 678 | |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 679 | aper_size = (intel_private.gtt_mappable_entries << PAGE_SHIFT) / MB(1); |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 680 | |
| 681 | for (i = 0; i < num_sizes; i++) { |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 682 | if (aper_size == intel_fake_agp_sizes[i].size) { |
Chris Wilson | 9e76e7b | 2010-09-14 12:12:11 +0100 | [diff] [blame] | 683 | agp_bridge->current_size = |
| 684 | (void *) (intel_fake_agp_sizes + i); |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 685 | return aper_size; |
| 686 | } |
| 687 | } |
| 688 | |
| 689 | return 0; |
| 690 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 691 | #endif |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 692 | |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 693 | static void i830_cleanup(void) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 694 | { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 695 | } |
| 696 | |
| 697 | /* The chipset_flush interface needs to get data that has already been |
| 698 | * flushed out of the CPU all the way out to main memory, because the GPU |
| 699 | * doesn't snoop those buffers. |
| 700 | * |
| 701 | * The 8xx series doesn't have the same lovely interface for flushing the |
| 702 | * chipset write buffers that the later chips do. According to the 865 |
| 703 | * specs, it's 64 octwords, or 1KB. So, to get those previous things in |
| 704 | * that buffer out, we just fill 1KB and clflush it out, on the assumption |
| 705 | * that it'll push whatever was in there out. It appears to work. |
| 706 | */ |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 707 | static void i830_chipset_flush(void) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 708 | { |
Chris Wilson | bdb8b97 | 2010-12-22 11:37:09 +0000 | [diff] [blame] | 709 | unsigned long timeout = jiffies + msecs_to_jiffies(1000); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 710 | |
Chris Wilson | bdb8b97 | 2010-12-22 11:37:09 +0000 | [diff] [blame] | 711 | /* Forcibly evict everything from the CPU write buffers. |
| 712 | * clflush appears to be insufficient. |
| 713 | */ |
| 714 | wbinvd_on_all_cpus(); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 715 | |
Chris Wilson | bdb8b97 | 2010-12-22 11:37:09 +0000 | [diff] [blame] | 716 | /* Now we've only seen documents for this magic bit on 855GM, |
| 717 | * we hope it exists for the other gen2 chipsets... |
| 718 | * |
| 719 | * Also works as advertised on my 845G. |
| 720 | */ |
| 721 | writel(readl(intel_private.registers+I830_HIC) | (1<<31), |
| 722 | intel_private.registers+I830_HIC); |
| 723 | |
| 724 | while (readl(intel_private.registers+I830_HIC) & (1<<31)) { |
| 725 | if (time_after(jiffies, timeout)) |
| 726 | break; |
| 727 | |
| 728 | udelay(50); |
| 729 | } |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 730 | } |
| 731 | |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 732 | static void i830_write_entry(dma_addr_t addr, unsigned int entry, |
| 733 | unsigned int flags) |
| 734 | { |
| 735 | u32 pte_flags = I810_PTE_VALID; |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 736 | |
Daniel Vetter | b47cf66 | 2010-11-04 18:41:50 +0100 | [diff] [blame] | 737 | if (flags == AGP_USER_CACHED_MEMORY) |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 738 | pte_flags |= I830_PTE_SYSTEM_CACHED; |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 739 | |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 740 | writel_relaxed(addr | pte_flags, intel_private.gtt + entry); |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 741 | } |
| 742 | |
Daniel Vetter | 8ecd1a6 | 2012-06-07 15:56:03 +0200 | [diff] [blame] | 743 | bool intel_enable_gtt(void) |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 744 | { |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 745 | u8 __iomem *reg; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 746 | |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 747 | if (INTEL_GTT_GEN == 2) { |
| 748 | u16 gmch_ctrl; |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 749 | |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 750 | pci_read_config_word(intel_private.bridge_dev, |
| 751 | I830_GMCH_CTRL, &gmch_ctrl); |
| 752 | gmch_ctrl |= I830_GMCH_ENABLED; |
| 753 | pci_write_config_word(intel_private.bridge_dev, |
| 754 | I830_GMCH_CTRL, gmch_ctrl); |
| 755 | |
| 756 | pci_read_config_word(intel_private.bridge_dev, |
| 757 | I830_GMCH_CTRL, &gmch_ctrl); |
| 758 | if ((gmch_ctrl & I830_GMCH_ENABLED) == 0) { |
| 759 | dev_err(&intel_private.pcidev->dev, |
| 760 | "failed to enable the GTT: GMCH_CTRL=%x\n", |
| 761 | gmch_ctrl); |
| 762 | return false; |
| 763 | } |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 764 | } |
| 765 | |
Chris Wilson | c97689d | 2010-12-23 10:40:38 +0000 | [diff] [blame] | 766 | /* On the resume path we may be adjusting the PGTBL value, so |
| 767 | * be paranoid and flush all chipset write buffers... |
| 768 | */ |
| 769 | if (INTEL_GTT_GEN >= 3) |
| 770 | writel(0, intel_private.registers+GFX_FLSH_CNTL); |
| 771 | |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 772 | reg = intel_private.registers+I810_PGETBL_CTL; |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 773 | writel(intel_private.PGETBL_save, reg); |
| 774 | if (HAS_PGTBL_EN && (readl(reg) & I810_PGETBL_ENABLED) == 0) { |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 775 | dev_err(&intel_private.pcidev->dev, |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 776 | "failed to enable the GTT: PGETBL=%x [expected %x]\n", |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 777 | readl(reg), intel_private.PGETBL_save); |
| 778 | return false; |
| 779 | } |
| 780 | |
Chris Wilson | c97689d | 2010-12-23 10:40:38 +0000 | [diff] [blame] | 781 | if (INTEL_GTT_GEN >= 3) |
| 782 | writel(0, intel_private.registers+GFX_FLSH_CNTL); |
| 783 | |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 784 | return true; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 785 | } |
Daniel Vetter | 8ecd1a6 | 2012-06-07 15:56:03 +0200 | [diff] [blame] | 786 | EXPORT_SYMBOL(intel_enable_gtt); |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 787 | |
| 788 | static int i830_setup(void) |
| 789 | { |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 790 | phys_addr_t reg_addr; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 791 | |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 792 | reg_addr = pci_resource_start(intel_private.pcidev, I810_MMADR_BAR); |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 793 | |
| 794 | intel_private.registers = ioremap(reg_addr, KB(64)); |
| 795 | if (!intel_private.registers) |
| 796 | return -ENOMEM; |
| 797 | |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 798 | intel_private.gtt_phys_addr = reg_addr + I810_PTE_BASE; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 799 | |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 800 | return 0; |
| 801 | } |
| 802 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 803 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | 3b15a9d | 2010-08-29 14:18:49 +0200 | [diff] [blame] | 804 | static int intel_fake_agp_create_gatt_table(struct agp_bridge_data *bridge) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 805 | { |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 806 | agp_bridge->gatt_table_real = NULL; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 807 | agp_bridge->gatt_table = NULL; |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 808 | agp_bridge->gatt_bus_addr = 0; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 809 | |
| 810 | return 0; |
| 811 | } |
| 812 | |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 813 | static int intel_fake_agp_free_gatt_table(struct agp_bridge_data *bridge) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 814 | { |
| 815 | return 0; |
| 816 | } |
| 817 | |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 818 | static int intel_fake_agp_configure(void) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 819 | { |
Chris Wilson | e380f60 | 2010-10-29 18:11:26 +0100 | [diff] [blame] | 820 | if (!intel_enable_gtt()) |
| 821 | return -EIO; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 822 | |
Chris Wilson | bee4a18 | 2011-01-21 10:54:32 +0000 | [diff] [blame] | 823 | intel_private.clear_fake_agp = true; |
Ben Widawsky | e5c6537 | 2013-01-18 12:30:34 -0800 | [diff] [blame] | 824 | agp_bridge->gart_bus_addr = intel_private.gma_bus_addr; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 825 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 826 | return 0; |
| 827 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 828 | #endif |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 829 | |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 830 | static bool i830_check_flags(unsigned int flags) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 831 | { |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 832 | switch (flags) { |
| 833 | case 0: |
| 834 | case AGP_PHYS_MEMORY: |
| 835 | case AGP_USER_CACHED_MEMORY: |
| 836 | case AGP_USER_MEMORY: |
| 837 | return true; |
| 838 | } |
| 839 | |
| 840 | return false; |
| 841 | } |
| 842 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 843 | void intel_gtt_insert_sg_entries(struct sg_table *st, |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 844 | unsigned int pg_start, |
| 845 | unsigned int flags) |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 846 | { |
| 847 | struct scatterlist *sg; |
| 848 | unsigned int len, m; |
| 849 | int i, j; |
| 850 | |
| 851 | j = pg_start; |
| 852 | |
| 853 | /* sg may merge pages, but we have to separate |
| 854 | * per-page addr for GTT */ |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 855 | for_each_sg(st->sgl, sg, st->nents, i) { |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 856 | len = sg_dma_len(sg) >> PAGE_SHIFT; |
| 857 | for (m = 0; m < len; m++) { |
| 858 | dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT); |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 859 | intel_private.driver->write_entry(addr, j, flags); |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 860 | j++; |
| 861 | } |
| 862 | } |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 863 | wmb(); |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 864 | } |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 865 | EXPORT_SYMBOL(intel_gtt_insert_sg_entries); |
| 866 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 867 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 868 | static void intel_gtt_insert_pages(unsigned int first_entry, |
| 869 | unsigned int num_entries, |
| 870 | struct page **pages, |
| 871 | unsigned int flags) |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 872 | { |
| 873 | int i, j; |
| 874 | |
| 875 | for (i = 0, j = first_entry; i < num_entries; i++, j++) { |
| 876 | dma_addr_t addr = page_to_phys(pages[i]); |
| 877 | intel_private.driver->write_entry(addr, |
| 878 | j, flags); |
| 879 | } |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 880 | wmb(); |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 881 | } |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 882 | |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 883 | static int intel_fake_agp_insert_entries(struct agp_memory *mem, |
| 884 | off_t pg_start, int type) |
| 885 | { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 886 | int ret = -EINVAL; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 887 | |
Chris Wilson | bee4a18 | 2011-01-21 10:54:32 +0000 | [diff] [blame] | 888 | if (intel_private.clear_fake_agp) { |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 889 | int start = intel_private.stolen_size / PAGE_SIZE; |
| 890 | int end = intel_private.gtt_mappable_entries; |
Chris Wilson | bee4a18 | 2011-01-21 10:54:32 +0000 | [diff] [blame] | 891 | intel_gtt_clear_range(start, end - start); |
| 892 | intel_private.clear_fake_agp = false; |
| 893 | } |
| 894 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 895 | if (INTEL_GTT_GEN == 1 && type == AGP_DCACHE_MEMORY) |
| 896 | return i810_insert_dcache_entries(mem, pg_start, type); |
| 897 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 898 | if (mem->page_count == 0) |
| 899 | goto out; |
| 900 | |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 901 | if (pg_start + mem->page_count > intel_private.gtt_total_entries) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 902 | goto out_err; |
| 903 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 904 | if (type != mem->type) |
| 905 | goto out_err; |
| 906 | |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 907 | if (!intel_private.driver->check_flags(type)) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 908 | goto out_err; |
| 909 | |
| 910 | if (!mem->is_flushed) |
| 911 | global_cache_flush(); |
| 912 | |
Ben Widawsky | 8d2e630 | 2013-01-18 12:30:33 -0800 | [diff] [blame] | 913 | if (intel_private.needs_dmar) { |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 914 | struct sg_table st; |
| 915 | |
| 916 | ret = intel_gtt_map_memory(mem->pages, mem->page_count, &st); |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 917 | if (ret != 0) |
| 918 | return ret; |
| 919 | |
Chris Wilson | 9da3da6 | 2012-06-01 15:20:22 +0100 | [diff] [blame] | 920 | intel_gtt_insert_sg_entries(&st, pg_start, type); |
| 921 | mem->sg_list = st.sgl; |
| 922 | mem->num_sg = st.nents; |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 923 | } else |
| 924 | intel_gtt_insert_pages(pg_start, mem->page_count, mem->pages, |
| 925 | type); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 926 | |
| 927 | out: |
| 928 | ret = 0; |
| 929 | out_err: |
| 930 | mem->is_flushed = true; |
| 931 | return ret; |
| 932 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 933 | #endif |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 934 | |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 935 | void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 936 | { |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 937 | unsigned int i; |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 938 | |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 939 | for (i = first_entry; i < (first_entry + num_entries); i++) { |
Ben Widawsky | 9c61a32 | 2013-01-18 12:30:32 -0800 | [diff] [blame] | 940 | intel_private.driver->write_entry(intel_private.scratch_page_dma, |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 941 | i, 0); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 942 | } |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 943 | wmb(); |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 944 | } |
| 945 | EXPORT_SYMBOL(intel_gtt_clear_range); |
| 946 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 947 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 948 | static int intel_fake_agp_remove_entries(struct agp_memory *mem, |
| 949 | off_t pg_start, int type) |
| 950 | { |
| 951 | if (mem->page_count == 0) |
| 952 | return 0; |
| 953 | |
Dave Airlie | d15eda5 | 2011-01-12 11:39:48 +1000 | [diff] [blame] | 954 | intel_gtt_clear_range(pg_start, mem->page_count); |
| 955 | |
Ben Widawsky | 8d2e630 | 2013-01-18 12:30:33 -0800 | [diff] [blame] | 956 | if (intel_private.needs_dmar) { |
Daniel Vetter | 4080775 | 2010-11-06 11:18:58 +0100 | [diff] [blame] | 957 | intel_gtt_unmap_memory(mem->sg_list, mem->num_sg); |
| 958 | mem->sg_list = NULL; |
| 959 | mem->num_sg = 0; |
| 960 | } |
| 961 | |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 962 | return 0; |
| 963 | } |
| 964 | |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 965 | static struct agp_memory *intel_fake_agp_alloc_by_type(size_t pg_count, |
| 966 | int type) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 967 | { |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 968 | struct agp_memory *new; |
| 969 | |
| 970 | if (type == AGP_DCACHE_MEMORY && INTEL_GTT_GEN == 1) { |
| 971 | if (pg_count != intel_private.num_dcache_entries) |
| 972 | return NULL; |
| 973 | |
| 974 | new = agp_create_memory(1); |
| 975 | if (new == NULL) |
| 976 | return NULL; |
| 977 | |
| 978 | new->type = AGP_DCACHE_MEMORY; |
| 979 | new->page_count = pg_count; |
| 980 | new->num_scratch_pages = 0; |
| 981 | agp_free_page_array(new); |
| 982 | return new; |
| 983 | } |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 984 | if (type == AGP_PHYS_MEMORY) |
| 985 | return alloc_agpphysmem_i8xx(pg_count, type); |
| 986 | /* always return NULL for other allocation types for now */ |
| 987 | return NULL; |
| 988 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 989 | #endif |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 990 | |
| 991 | static int intel_alloc_chipset_flush_resource(void) |
| 992 | { |
| 993 | int ret; |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 994 | ret = pci_bus_alloc_resource(intel_private.bridge_dev->bus, &intel_private.ifp_resource, PAGE_SIZE, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 995 | PAGE_SIZE, PCIBIOS_MIN_MEM, 0, |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 996 | pcibios_align_resource, intel_private.bridge_dev); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 997 | |
| 998 | return ret; |
| 999 | } |
| 1000 | |
| 1001 | static void intel_i915_setup_chipset_flush(void) |
| 1002 | { |
| 1003 | int ret; |
| 1004 | u32 temp; |
| 1005 | |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1006 | pci_read_config_dword(intel_private.bridge_dev, I915_IFPADDR, &temp); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1007 | if (!(temp & 0x1)) { |
| 1008 | intel_alloc_chipset_flush_resource(); |
| 1009 | intel_private.resource_valid = 1; |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1010 | pci_write_config_dword(intel_private.bridge_dev, I915_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1011 | } else { |
| 1012 | temp &= ~1; |
| 1013 | |
| 1014 | intel_private.resource_valid = 1; |
| 1015 | intel_private.ifp_resource.start = temp; |
| 1016 | intel_private.ifp_resource.end = temp + PAGE_SIZE; |
| 1017 | ret = request_resource(&iomem_resource, &intel_private.ifp_resource); |
| 1018 | /* some BIOSes reserve this area in a pnp some don't */ |
| 1019 | if (ret) |
| 1020 | intel_private.resource_valid = 0; |
| 1021 | } |
| 1022 | } |
| 1023 | |
| 1024 | static void intel_i965_g33_setup_chipset_flush(void) |
| 1025 | { |
| 1026 | u32 temp_hi, temp_lo; |
| 1027 | int ret; |
| 1028 | |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1029 | pci_read_config_dword(intel_private.bridge_dev, I965_IFPADDR + 4, &temp_hi); |
| 1030 | pci_read_config_dword(intel_private.bridge_dev, I965_IFPADDR, &temp_lo); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1031 | |
| 1032 | if (!(temp_lo & 0x1)) { |
| 1033 | |
| 1034 | intel_alloc_chipset_flush_resource(); |
| 1035 | |
| 1036 | intel_private.resource_valid = 1; |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1037 | pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR + 4, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1038 | upper_32_bits(intel_private.ifp_resource.start)); |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1039 | pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1040 | } else { |
| 1041 | u64 l64; |
| 1042 | |
| 1043 | temp_lo &= ~0x1; |
| 1044 | l64 = ((u64)temp_hi << 32) | temp_lo; |
| 1045 | |
| 1046 | intel_private.resource_valid = 1; |
| 1047 | intel_private.ifp_resource.start = l64; |
| 1048 | intel_private.ifp_resource.end = l64 + PAGE_SIZE; |
| 1049 | ret = request_resource(&iomem_resource, &intel_private.ifp_resource); |
| 1050 | /* some BIOSes reserve this area in a pnp some don't */ |
| 1051 | if (ret) |
| 1052 | intel_private.resource_valid = 0; |
| 1053 | } |
| 1054 | } |
| 1055 | |
| 1056 | static void intel_i9xx_setup_flush(void) |
| 1057 | { |
| 1058 | /* return if already configured */ |
| 1059 | if (intel_private.ifp_resource.start) |
| 1060 | return; |
| 1061 | |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1062 | if (INTEL_GTT_GEN == 6) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1063 | return; |
| 1064 | |
| 1065 | /* setup a resource for this object */ |
| 1066 | intel_private.ifp_resource.name = "Intel Flush Page"; |
| 1067 | intel_private.ifp_resource.flags = IORESOURCE_MEM; |
| 1068 | |
| 1069 | /* Setup chipset flush for 915 */ |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1070 | if (IS_G33 || INTEL_GTT_GEN >= 4) { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1071 | intel_i965_g33_setup_chipset_flush(); |
| 1072 | } else { |
| 1073 | intel_i915_setup_chipset_flush(); |
| 1074 | } |
| 1075 | |
Chris Wilson | df51e7a | 2010-09-04 14:57:27 +0100 | [diff] [blame] | 1076 | if (intel_private.ifp_resource.start) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1077 | intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE); |
Chris Wilson | df51e7a | 2010-09-04 14:57:27 +0100 | [diff] [blame] | 1078 | if (!intel_private.i9xx_flush_page) |
| 1079 | dev_err(&intel_private.pcidev->dev, |
| 1080 | "can't ioremap flush page - no chipset flushing\n"); |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1081 | } |
| 1082 | |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1083 | static void i9xx_cleanup(void) |
| 1084 | { |
| 1085 | if (intel_private.i9xx_flush_page) |
| 1086 | iounmap(intel_private.i9xx_flush_page); |
| 1087 | if (intel_private.resource_valid) |
| 1088 | release_resource(&intel_private.ifp_resource); |
| 1089 | intel_private.ifp_resource.start = 0; |
| 1090 | intel_private.resource_valid = 0; |
| 1091 | } |
| 1092 | |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1093 | static void i9xx_chipset_flush(void) |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1094 | { |
| 1095 | if (intel_private.i9xx_flush_page) |
| 1096 | writel(1, intel_private.i9xx_flush_page); |
| 1097 | } |
| 1098 | |
Chris Wilson | 71f4566 | 2010-12-14 11:29:23 +0000 | [diff] [blame] | 1099 | static void i965_write_entry(dma_addr_t addr, |
| 1100 | unsigned int entry, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1101 | unsigned int flags) |
| 1102 | { |
Chris Wilson | 71f4566 | 2010-12-14 11:29:23 +0000 | [diff] [blame] | 1103 | u32 pte_flags; |
| 1104 | |
| 1105 | pte_flags = I810_PTE_VALID; |
| 1106 | if (flags == AGP_USER_CACHED_MEMORY) |
| 1107 | pte_flags |= I830_PTE_SYSTEM_CACHED; |
| 1108 | |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1109 | /* Shift high bits down */ |
| 1110 | addr |= (addr >> 28) & 0xf0; |
Chris Wilson | 983d308 | 2015-01-26 10:47:10 +0000 | [diff] [blame] | 1111 | writel_relaxed(addr | pte_flags, intel_private.gtt + entry); |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1112 | } |
| 1113 | |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1114 | static int i9xx_setup(void) |
| 1115 | { |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 1116 | phys_addr_t reg_addr; |
Jesse Barnes | 4b60d29 | 2012-03-28 13:39:33 -0700 | [diff] [blame] | 1117 | int size = KB(512); |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1118 | |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 1119 | reg_addr = pci_resource_start(intel_private.pcidev, I915_MMADR_BAR); |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1120 | |
Jesse Barnes | 4b60d29 | 2012-03-28 13:39:33 -0700 | [diff] [blame] | 1121 | intel_private.registers = ioremap(reg_addr, size); |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1122 | if (!intel_private.registers) |
| 1123 | return -ENOMEM; |
| 1124 | |
Ben Widawsky | 009946f | 2012-11-04 09:21:29 -0800 | [diff] [blame] | 1125 | switch (INTEL_GTT_GEN) { |
| 1126 | case 3: |
Bjorn Helgaas | b5e350f | 2014-01-03 18:29:00 -0700 | [diff] [blame] | 1127 | intel_private.gtt_phys_addr = |
Bjorn Helgaas | d357253 | 2014-01-06 14:43:13 -0700 | [diff] [blame] | 1128 | pci_resource_start(intel_private.pcidev, I915_PTE_BAR); |
Ben Widawsky | 009946f | 2012-11-04 09:21:29 -0800 | [diff] [blame] | 1129 | break; |
| 1130 | case 5: |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 1131 | intel_private.gtt_phys_addr = reg_addr + MB(2); |
Ben Widawsky | 009946f | 2012-11-04 09:21:29 -0800 | [diff] [blame] | 1132 | break; |
| 1133 | default: |
Bjorn Helgaas | 5acc4ce | 2014-01-06 14:39:40 -0700 | [diff] [blame] | 1134 | intel_private.gtt_phys_addr = reg_addr + KB(512); |
Ben Widawsky | 009946f | 2012-11-04 09:21:29 -0800 | [diff] [blame] | 1135 | break; |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1136 | } |
| 1137 | |
| 1138 | intel_i9xx_setup_flush(); |
| 1139 | |
| 1140 | return 0; |
| 1141 | } |
| 1142 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 1143 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | e9b1cc8 | 2010-09-12 00:29:26 +0200 | [diff] [blame] | 1144 | static const struct agp_bridge_driver intel_fake_agp_driver = { |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1145 | .owner = THIS_MODULE, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1146 | .size_type = FIXED_APER_SIZE, |
Chris Wilson | 9e76e7b | 2010-09-14 12:12:11 +0100 | [diff] [blame] | 1147 | .aperture_sizes = intel_fake_agp_sizes, |
| 1148 | .num_aperture_sizes = ARRAY_SIZE(intel_fake_agp_sizes), |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1149 | .configure = intel_fake_agp_configure, |
Daniel Vetter | 3e921f9 | 2010-08-27 15:33:26 +0200 | [diff] [blame] | 1150 | .fetch_size = intel_fake_agp_fetch_size, |
Daniel Vetter | fdfb58a | 2010-08-29 00:15:03 +0200 | [diff] [blame] | 1151 | .cleanup = intel_gtt_cleanup, |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 1152 | .agp_enable = intel_fake_agp_enable, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1153 | .cache_flush = global_cache_flush, |
Daniel Vetter | 3b15a9d | 2010-08-29 14:18:49 +0200 | [diff] [blame] | 1154 | .create_gatt_table = intel_fake_agp_create_gatt_table, |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 1155 | .free_gatt_table = intel_fake_agp_free_gatt_table, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1156 | .insert_memory = intel_fake_agp_insert_entries, |
| 1157 | .remove_memory = intel_fake_agp_remove_entries, |
Daniel Vetter | ffdd751 | 2010-08-27 17:51:29 +0200 | [diff] [blame] | 1158 | .alloc_by_type = intel_fake_agp_alloc_by_type, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1159 | .free_by_type = intel_i810_free_by_type, |
| 1160 | .agp_alloc_page = agp_generic_alloc_page, |
| 1161 | .agp_alloc_pages = agp_generic_alloc_pages, |
| 1162 | .agp_destroy_page = agp_generic_destroy_page, |
| 1163 | .agp_destroy_pages = agp_generic_destroy_pages, |
Daniel Vetter | f51b766 | 2010-04-14 00:29:52 +0200 | [diff] [blame] | 1164 | }; |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 1165 | #endif |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1166 | |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1167 | static const struct intel_gtt_driver i81x_gtt_driver = { |
| 1168 | .gen = 1, |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 1169 | .has_pgtbl_enable = 1, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1170 | .dma_mask_size = 32, |
Daniel Vetter | 820647b | 2010-11-05 13:30:14 +0100 | [diff] [blame] | 1171 | .setup = i810_setup, |
| 1172 | .cleanup = i810_cleanup, |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 1173 | .check_flags = i830_check_flags, |
| 1174 | .write_entry = i810_write_entry, |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1175 | }; |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1176 | static const struct intel_gtt_driver i8xx_gtt_driver = { |
| 1177 | .gen = 2, |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 1178 | .has_pgtbl_enable = 1, |
Daniel Vetter | 7380042 | 2010-08-29 17:29:50 +0200 | [diff] [blame] | 1179 | .setup = i830_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1180 | .cleanup = i830_cleanup, |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 1181 | .write_entry = i830_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1182 | .dma_mask_size = 32, |
Daniel Vetter | 5cbecaf | 2010-09-11 21:31:04 +0200 | [diff] [blame] | 1183 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1184 | .chipset_flush = i830_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1185 | }; |
| 1186 | static const struct intel_gtt_driver i915_gtt_driver = { |
| 1187 | .gen = 3, |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 1188 | .has_pgtbl_enable = 1, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1189 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1190 | .cleanup = i9xx_cleanup, |
Daniel Vetter | 351bb27 | 2010-09-07 22:41:04 +0200 | [diff] [blame] | 1191 | /* i945 is the last gpu to need phys mem (for overlay and cursors). */ |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 1192 | .write_entry = i830_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1193 | .dma_mask_size = 32, |
Daniel Vetter | fefaa70 | 2010-09-11 22:12:11 +0200 | [diff] [blame] | 1194 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1195 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1196 | }; |
| 1197 | static const struct intel_gtt_driver g33_gtt_driver = { |
| 1198 | .gen = 3, |
| 1199 | .is_g33 = 1, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1200 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1201 | .cleanup = i9xx_cleanup, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1202 | .write_entry = i965_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1203 | .dma_mask_size = 36, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1204 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1205 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1206 | }; |
| 1207 | static const struct intel_gtt_driver pineview_gtt_driver = { |
| 1208 | .gen = 3, |
| 1209 | .is_pineview = 1, .is_g33 = 1, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1210 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1211 | .cleanup = i9xx_cleanup, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1212 | .write_entry = i965_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1213 | .dma_mask_size = 36, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1214 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1215 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1216 | }; |
| 1217 | static const struct intel_gtt_driver i965_gtt_driver = { |
| 1218 | .gen = 4, |
Chris Wilson | 100519e | 2010-10-31 10:37:02 +0000 | [diff] [blame] | 1219 | .has_pgtbl_enable = 1, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1220 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1221 | .cleanup = i9xx_cleanup, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1222 | .write_entry = i965_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1223 | .dma_mask_size = 36, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1224 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1225 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1226 | }; |
| 1227 | static const struct intel_gtt_driver g4x_gtt_driver = { |
| 1228 | .gen = 5, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1229 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1230 | .cleanup = i9xx_cleanup, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1231 | .write_entry = i965_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1232 | .dma_mask_size = 36, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1233 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1234 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1235 | }; |
| 1236 | static const struct intel_gtt_driver ironlake_gtt_driver = { |
| 1237 | .gen = 5, |
| 1238 | .is_ironlake = 1, |
Daniel Vetter | 2d2430c | 2010-08-29 17:35:30 +0200 | [diff] [blame] | 1239 | .setup = i9xx_setup, |
Daniel Vetter | ae83dd5 | 2010-09-12 17:11:15 +0200 | [diff] [blame] | 1240 | .cleanup = i9xx_cleanup, |
Daniel Vetter | a696359 | 2010-09-11 14:01:43 +0200 | [diff] [blame] | 1241 | .write_entry = i965_write_entry, |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1242 | .dma_mask_size = 36, |
Daniel Vetter | 450f2b3 | 2010-09-11 23:48:25 +0200 | [diff] [blame] | 1243 | .check_flags = i830_check_flags, |
Daniel Vetter | 1b263f2 | 2010-09-12 00:27:24 +0200 | [diff] [blame] | 1244 | .chipset_flush = i9xx_chipset_flush, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1245 | }; |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1246 | |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1247 | /* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of |
| 1248 | * driver and gmch_driver must be non-null, and find_gmch will determine |
| 1249 | * which one should be used if a gmch_chip_id is present. |
| 1250 | */ |
| 1251 | static const struct intel_gtt_driver_description { |
| 1252 | unsigned int gmch_chip_id; |
| 1253 | char *name; |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1254 | const struct intel_gtt_driver *gtt_driver; |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1255 | } intel_gtt_chipsets[] = { |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1256 | { PCI_DEVICE_ID_INTEL_82810_IG1, "i810", |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1257 | &i81x_gtt_driver}, |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1258 | { PCI_DEVICE_ID_INTEL_82810_IG3, "i810", |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1259 | &i81x_gtt_driver}, |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1260 | { PCI_DEVICE_ID_INTEL_82810E_IG, "i810", |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1261 | &i81x_gtt_driver}, |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1262 | { PCI_DEVICE_ID_INTEL_82815_CGC, "i815", |
Daniel Vetter | bdd3072 | 2010-09-12 12:34:44 +0200 | [diff] [blame] | 1263 | &i81x_gtt_driver}, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1264 | { PCI_DEVICE_ID_INTEL_82830_CGC, "830M", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1265 | &i8xx_gtt_driver}, |
Oswald Buddenhagen | 53371ed | 2010-06-19 23:08:37 +0200 | [diff] [blame] | 1266 | { PCI_DEVICE_ID_INTEL_82845G_IG, "845G", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1267 | &i8xx_gtt_driver}, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1268 | { PCI_DEVICE_ID_INTEL_82854_IG, "854", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1269 | &i8xx_gtt_driver}, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1270 | { PCI_DEVICE_ID_INTEL_82855GM_IG, "855GM", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1271 | &i8xx_gtt_driver}, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1272 | { PCI_DEVICE_ID_INTEL_82865_IG, "865", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1273 | &i8xx_gtt_driver}, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1274 | { PCI_DEVICE_ID_INTEL_E7221_IG, "E7221 (i915)", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1275 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1276 | { PCI_DEVICE_ID_INTEL_82915G_IG, "915G", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1277 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1278 | { PCI_DEVICE_ID_INTEL_82915GM_IG, "915GM", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1279 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1280 | { PCI_DEVICE_ID_INTEL_82945G_IG, "945G", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1281 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1282 | { PCI_DEVICE_ID_INTEL_82945GM_IG, "945GM", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1283 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1284 | { PCI_DEVICE_ID_INTEL_82945GME_IG, "945GME", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1285 | &i915_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1286 | { PCI_DEVICE_ID_INTEL_82946GZ_IG, "946GZ", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1287 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1288 | { PCI_DEVICE_ID_INTEL_82G35_IG, "G35", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1289 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1290 | { PCI_DEVICE_ID_INTEL_82965Q_IG, "965Q", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1291 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1292 | { PCI_DEVICE_ID_INTEL_82965G_IG, "965G", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1293 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1294 | { PCI_DEVICE_ID_INTEL_82965GM_IG, "965GM", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1295 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1296 | { PCI_DEVICE_ID_INTEL_82965GME_IG, "965GME/GLE", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1297 | &i965_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1298 | { PCI_DEVICE_ID_INTEL_G33_IG, "G33", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1299 | &g33_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1300 | { PCI_DEVICE_ID_INTEL_Q35_IG, "Q35", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1301 | &g33_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1302 | { PCI_DEVICE_ID_INTEL_Q33_IG, "Q33", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1303 | &g33_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1304 | { PCI_DEVICE_ID_INTEL_PINEVIEW_M_IG, "GMA3150", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1305 | &pineview_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1306 | { PCI_DEVICE_ID_INTEL_PINEVIEW_IG, "GMA3150", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1307 | &pineview_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1308 | { PCI_DEVICE_ID_INTEL_GM45_IG, "GM45", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1309 | &g4x_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1310 | { PCI_DEVICE_ID_INTEL_EAGLELAKE_IG, "Eaglelake", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1311 | &g4x_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1312 | { PCI_DEVICE_ID_INTEL_Q45_IG, "Q45/Q43", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1313 | &g4x_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1314 | { PCI_DEVICE_ID_INTEL_G45_IG, "G45/G43", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1315 | &g4x_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1316 | { PCI_DEVICE_ID_INTEL_B43_IG, "B43", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1317 | &g4x_gtt_driver }, |
Chris Wilson | e9e5f8e | 2010-09-21 11:19:32 +0100 | [diff] [blame] | 1318 | { PCI_DEVICE_ID_INTEL_B43_1_IG, "B43", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1319 | &g4x_gtt_driver }, |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1320 | { PCI_DEVICE_ID_INTEL_G41_IG, "G41", |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1321 | &g4x_gtt_driver }, |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1322 | { PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG, |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1323 | "HD Graphics", &ironlake_gtt_driver }, |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1324 | { PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG, |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1325 | "HD Graphics", &ironlake_gtt_driver }, |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1326 | { 0, NULL, NULL } |
| 1327 | }; |
| 1328 | |
| 1329 | static int find_gmch(u16 device) |
| 1330 | { |
| 1331 | struct pci_dev *gmch_device; |
| 1332 | |
| 1333 | gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL); |
| 1334 | if (gmch_device && PCI_FUNC(gmch_device->devfn) != 0) { |
| 1335 | gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL, |
| 1336 | device, gmch_device); |
| 1337 | } |
| 1338 | |
| 1339 | if (!gmch_device) |
| 1340 | return 0; |
| 1341 | |
| 1342 | intel_private.pcidev = gmch_device; |
| 1343 | return 1; |
| 1344 | } |
| 1345 | |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1346 | int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, |
| 1347 | struct agp_bridge_data *bridge) |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1348 | { |
| 1349 | int i, mask; |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1350 | |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1351 | for (i = 0; intel_gtt_chipsets[i].name != NULL; i++) { |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1352 | if (gpu_pdev) { |
| 1353 | if (gpu_pdev->device == |
| 1354 | intel_gtt_chipsets[i].gmch_chip_id) { |
| 1355 | intel_private.pcidev = pci_dev_get(gpu_pdev); |
| 1356 | intel_private.driver = |
| 1357 | intel_gtt_chipsets[i].gtt_driver; |
| 1358 | |
| 1359 | break; |
| 1360 | } |
| 1361 | } else if (find_gmch(intel_gtt_chipsets[i].gmch_chip_id)) { |
Daniel Vetter | 625dd9d | 2010-11-04 20:07:57 +0100 | [diff] [blame] | 1362 | intel_private.driver = |
Daniel Vetter | 1a997ff | 2010-09-08 21:18:53 +0200 | [diff] [blame] | 1363 | intel_gtt_chipsets[i].gtt_driver; |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1364 | break; |
| 1365 | } |
| 1366 | } |
| 1367 | |
Daniel Vetter | ff26860 | 2010-11-05 15:43:35 +0100 | [diff] [blame] | 1368 | if (!intel_private.driver) |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1369 | return 0; |
| 1370 | |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 1371 | #if IS_ENABLED(CONFIG_AGP_INTEL) |
Daniel Vetter | 7e8f630 | 2012-06-07 15:55:58 +0200 | [diff] [blame] | 1372 | if (bridge) { |
Daniel Vetter | ebb7c78 | 2016-01-27 14:38:00 +0100 | [diff] [blame] | 1373 | if (INTEL_GTT_GEN > 1) |
| 1374 | return 0; |
| 1375 | |
Daniel Vetter | 7e8f630 | 2012-06-07 15:55:58 +0200 | [diff] [blame] | 1376 | bridge->driver = &intel_fake_agp_driver; |
| 1377 | bridge->dev_private_data = &intel_private; |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1378 | bridge->dev = bridge_pdev; |
Daniel Vetter | 7e8f630 | 2012-06-07 15:55:58 +0200 | [diff] [blame] | 1379 | } |
Ville Syrjälä | 00fe639 | 2013-11-05 14:00:08 +0200 | [diff] [blame] | 1380 | #endif |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1381 | |
Daniel Vetter | ebb7c78 | 2016-01-27 14:38:00 +0100 | [diff] [blame] | 1382 | |
| 1383 | /* |
| 1384 | * Can be called from the fake agp driver but also directly from |
| 1385 | * drm/i915.ko. Hence we need to check whether everything is set up |
| 1386 | * already. |
| 1387 | */ |
| 1388 | if (intel_private.refcount++) |
| 1389 | return 1; |
| 1390 | |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1391 | intel_private.bridge_dev = pci_dev_get(bridge_pdev); |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1392 | |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1393 | dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name); |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1394 | |
Daniel Vetter | 22533b4 | 2010-09-12 16:38:55 +0200 | [diff] [blame] | 1395 | mask = intel_private.driver->dma_mask_size; |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1396 | if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask))) |
| 1397 | dev_err(&intel_private.pcidev->dev, |
| 1398 | "set gfx device dma mask %d-bit failed!\n", mask); |
| 1399 | else |
| 1400 | pci_set_consistent_dma_mask(intel_private.pcidev, |
| 1401 | DMA_BIT_MASK(mask)); |
| 1402 | |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1403 | if (intel_gtt_init() != 0) { |
| 1404 | intel_gmch_remove(); |
| 1405 | |
Daniel Vetter | 3b15a9d | 2010-08-29 14:18:49 +0200 | [diff] [blame] | 1406 | return 0; |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1407 | } |
Daniel Vetter | 1784a5f | 2010-09-08 21:01:04 +0200 | [diff] [blame] | 1408 | |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1409 | return 1; |
| 1410 | } |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 1411 | EXPORT_SYMBOL(intel_gmch_probe); |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1412 | |
Mika Kuoppala | c44ef60 | 2015-06-25 18:35:05 +0300 | [diff] [blame] | 1413 | void intel_gtt_get(u64 *gtt_total, size_t *stolen_size, |
| 1414 | phys_addr_t *mappable_base, u64 *mappable_end) |
Daniel Vetter | 1996675 | 2010-09-06 20:08:44 +0200 | [diff] [blame] | 1415 | { |
Ben Widawsky | a54c0c2 | 2013-01-24 14:45:00 -0800 | [diff] [blame] | 1416 | *gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT; |
| 1417 | *stolen_size = intel_private.stolen_size; |
Ben Widawsky | 41907dd | 2013-02-08 11:32:47 -0800 | [diff] [blame] | 1418 | *mappable_base = intel_private.gma_bus_addr; |
| 1419 | *mappable_end = intel_private.gtt_mappable_entries << PAGE_SHIFT; |
Daniel Vetter | 1996675 | 2010-09-06 20:08:44 +0200 | [diff] [blame] | 1420 | } |
| 1421 | EXPORT_SYMBOL(intel_gtt_get); |
| 1422 | |
Daniel Vetter | 40ce657 | 2010-11-05 18:12:18 +0100 | [diff] [blame] | 1423 | void intel_gtt_chipset_flush(void) |
| 1424 | { |
| 1425 | if (intel_private.driver->chipset_flush) |
| 1426 | intel_private.driver->chipset_flush(); |
| 1427 | } |
| 1428 | EXPORT_SYMBOL(intel_gtt_chipset_flush); |
| 1429 | |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1430 | void intel_gmch_remove(void) |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1431 | { |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1432 | if (--intel_private.refcount) |
| 1433 | return; |
| 1434 | |
Daniel Vetter | 9f5ac8e | 2016-01-27 14:37:58 +0100 | [diff] [blame] | 1435 | if (intel_private.scratch_page) |
| 1436 | intel_gtt_teardown_scratch_page(); |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1437 | if (intel_private.pcidev) |
| 1438 | pci_dev_put(intel_private.pcidev); |
Daniel Vetter | d7cca2f | 2010-08-24 23:06:19 +0200 | [diff] [blame] | 1439 | if (intel_private.bridge_dev) |
| 1440 | pci_dev_put(intel_private.bridge_dev); |
Daniel Vetter | 14be93d | 2012-06-08 15:55:40 +0200 | [diff] [blame] | 1441 | intel_private.driver = NULL; |
Daniel Vetter | 02c026c | 2010-08-24 19:39:48 +0200 | [diff] [blame] | 1442 | } |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 1443 | EXPORT_SYMBOL(intel_gmch_remove); |
| 1444 | |
Dave Jones | bd8136d | 2014-12-19 11:23:50 -0500 | [diff] [blame] | 1445 | MODULE_AUTHOR("Dave Jones, Various @Intel"); |
Daniel Vetter | e2404e7 | 2010-09-08 17:29:51 +0200 | [diff] [blame] | 1446 | MODULE_LICENSE("GPL and additional rights"); |