14 #include "intel-agp.h"
15 #include <drm/intel/intel-gtt.h>
23 	pci_read_config_word(agp_bridge->dev, INTEL_APSIZE, &temp);  in intel_fetch_size()
24 	values = A_SIZE_16(agp_bridge->driver->aperture_sizes);  in intel_fetch_size()
26 	for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {  in intel_fetch_size()
28 			agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i);  in intel_fetch_size()
29 			agp_bridge->aperture_size_idx = i;  in intel_fetch_size()
42 	values = A_SIZE_8(agp_bridge->driver->aperture_sizes);  in __intel_8xx_fetch_size()
44 	for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) {  in __intel_8xx_fetch_size()
46 			agp_bridge->previous_size =  in __intel_8xx_fetch_size()
47 				agp_bridge->current_size = (void *) (values + i);  in __intel_8xx_fetch_size()
48 			agp_bridge->aperture_size_idx = i;  in __intel_8xx_fetch_size()
59 	pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);  in intel_8xx_fetch_size()
68 	 * one non-reserved bit, so mask the others out ... */  in intel_815_fetch_size()
69 	pci_read_config_byte(agp_bridge->dev, INTEL_APSIZE, &temp);  in intel_815_fetch_size()
75 static void intel_tlbflush(struct agp_memory *mem)  in intel_tlbflush()  argument
77 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2200);  in intel_tlbflush()
78 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);  in intel_tlbflush()
82 static void intel_8xx_tlbflush(struct agp_memory *mem)  in intel_8xx_tlbflush()  argument
85 	pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);  in intel_8xx_tlbflush()
86 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp & ~(1 << 7));  in intel_8xx_tlbflush()
87 	pci_read_config_dword(agp_bridge->dev, INTEL_AGPCTRL, &temp);  in intel_8xx_tlbflush()
88 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, temp | (1 << 7));  in intel_8xx_tlbflush()
97 	previous_size = A_SIZE_16(agp_bridge->previous_size);  in intel_cleanup()
98 	pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);  in intel_cleanup()
99 	pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));  in intel_cleanup()
100 	pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);  in intel_cleanup()
109 	previous_size = A_SIZE_8(agp_bridge->previous_size);  in intel_8xx_cleanup()
110 	pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp);  in intel_8xx_cleanup()
111 	pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp & ~(1 << 9));  in intel_8xx_cleanup()
112 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, previous_size->size_value);  in intel_8xx_cleanup()
121 	current_size = A_SIZE_16(agp_bridge->current_size);  in intel_configure()
124 	pci_write_config_word(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_configure()
127 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_configure()
130 	/* attbase - aperture base */  in intel_configure()
131 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_configure()
134 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x2280);  in intel_configure()
137 	pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);  in intel_configure()
138 	pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG,  in intel_configure()
141 	pci_write_config_byte(agp_bridge->dev, INTEL_ERRSTS + 1, 7);  in intel_configure()
151 	/* attbase - aperture base */  in intel_815_configure()
152 	/* the Intel 815 chipset spec. says that bits 29-31 in the  in intel_815_configure()
153 	* ATTBASE register are reserved -> try not to write them */  in intel_815_configure()
154 	if (agp_bridge->gatt_bus_addr & INTEL_815_ATTBASE_MASK) {  in intel_815_configure()
155 		dev_emerg(&agp_bridge->dev->dev, "gatt bus addr too high");  in intel_815_configure()
156 		return -EINVAL;  in intel_815_configure()
159 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_815_configure()
162 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,  in intel_815_configure()
163 			current_size->size_value);  in intel_815_configure()
166 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_815_configure()
169 	pci_read_config_dword(agp_bridge->dev, INTEL_ATTBASE, &addr);  in intel_815_configure()
171 	addr |= agp_bridge->gatt_bus_addr;  in intel_815_configure()
172 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, addr);  in intel_815_configure()
175 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_815_configure()
178 	pci_read_config_byte(agp_bridge->dev, INTEL_815_APCONT, &temp2);  in intel_815_configure()
179 	pci_write_config_byte(agp_bridge->dev, INTEL_815_APCONT, temp2 | (1 << 1));  in intel_815_configure()
186 static void intel_820_tlbflush(struct agp_memory *mem)  in intel_820_tlbflush()  argument
196 	previous_size = A_SIZE_8(agp_bridge->previous_size);  in intel_820_cleanup()
197 	pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp);  in intel_820_cleanup()
198 	pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR,  in intel_820_cleanup()
200 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE,  in intel_820_cleanup()
201 			previous_size->size_value);  in intel_820_cleanup()
210 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_820_configure()
213 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_820_configure()
216 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_820_configure()
219 	/* attbase - aperture base */  in intel_820_configure()
220 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_820_configure()
223 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_820_configure()
228 	pci_read_config_byte(agp_bridge->dev, INTEL_I820_RDCR, &temp2);  in intel_820_configure()
229 	pci_write_config_byte(agp_bridge->dev, INTEL_I820_RDCR, temp2 | (1 << 1));  in intel_820_configure()
230 	/* clear any possible AGP-related error conditions */  in intel_820_configure()
231 	pci_write_config_word(agp_bridge->dev, INTEL_I820_ERRSTS, 0x001c);  in intel_820_configure()
240 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_840_configure()
243 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_840_configure()
246 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_840_configure()
249 	/* attbase - aperture base */  in intel_840_configure()
250 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_840_configure()
253 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_840_configure()
256 	pci_read_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, &temp2);  in intel_840_configure()
257 	pci_write_config_word(agp_bridge->dev, INTEL_I840_MCHCFG, temp2 | (1 << 9));  in intel_840_configure()
259 	pci_write_config_word(agp_bridge->dev, INTEL_I840_ERRSTS, 0xc000);  in intel_840_configure()
268 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_845_configure()
271 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_845_configure()
273 	if (agp_bridge->apbase_config != 0) {  in intel_845_configure()
274 		pci_write_config_dword(agp_bridge->dev, AGP_APBASE,  in intel_845_configure()
275 				       agp_bridge->apbase_config);  in intel_845_configure()
278 		agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_845_configure()
280 		agp_bridge->apbase_config = agp_bridge->gart_bus_addr;  in intel_845_configure()
283 	/* attbase - aperture base */  in intel_845_configure()
284 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_845_configure()
287 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_845_configure()
290 	pci_read_config_byte(agp_bridge->dev, INTEL_I845_AGPM, &temp2);  in intel_845_configure()
291 	pci_write_config_byte(agp_bridge->dev, INTEL_I845_AGPM, temp2 | (1 << 1));  in intel_845_configure()
293 	pci_write_config_word(agp_bridge->dev, INTEL_I845_ERRSTS, 0x001c);  in intel_845_configure()
302 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_850_configure()
305 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_850_configure()
308 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_850_configure()
311 	/* attbase - aperture base */  in intel_850_configure()
312 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_850_configure()
315 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_850_configure()
318 	pci_read_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, &temp2);  in intel_850_configure()
319 	pci_write_config_word(agp_bridge->dev, INTEL_I850_MCHCFG, temp2 | (1 << 9));  in intel_850_configure()
320 	/* clear any possible AGP-related error conditions */  in intel_850_configure()
321 	pci_write_config_word(agp_bridge->dev, INTEL_I850_ERRSTS, 0x001c);  in intel_850_configure()
330 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_860_configure()
333 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_860_configure()
336 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_860_configure()
339 	/* attbase - aperture base */  in intel_860_configure()
340 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_860_configure()
343 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_860_configure()
346 	pci_read_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, &temp2);  in intel_860_configure()
347 	pci_write_config_word(agp_bridge->dev, INTEL_I860_MCHCFG, temp2 | (1 << 9));  in intel_860_configure()
348 	/* clear any possible AGP-related error conditions */  in intel_860_configure()
349 	pci_write_config_word(agp_bridge->dev, INTEL_I860_ERRSTS, 0xf700);  in intel_860_configure()
358 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_830mp_configure()
361 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_830mp_configure()
364 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_830mp_configure()
367 	/* attbase - aperture base */  in intel_830mp_configure()
368 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_830mp_configure()
371 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_830mp_configure()
374 	pci_read_config_word(agp_bridge->dev, INTEL_NBXCFG, &temp2);  in intel_830mp_configure()
375 	pci_write_config_word(agp_bridge->dev, INTEL_NBXCFG, temp2 | (1 << 9));  in intel_830mp_configure()
376 	/* clear any possible AGP-related error conditions */  in intel_830mp_configure()
377 	pci_write_config_word(agp_bridge->dev, INTEL_I830_ERRSTS, 0x1c);  in intel_830mp_configure()
386 	current_size = A_SIZE_8(agp_bridge->current_size);  in intel_7505_configure()
389 	pci_write_config_byte(agp_bridge->dev, INTEL_APSIZE, current_size->size_value);  in intel_7505_configure()
392 	agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,  in intel_7505_configure()
395 	/* attbase - aperture base */  in intel_7505_configure()
396 	pci_write_config_dword(agp_bridge->dev, INTEL_ATTBASE, agp_bridge->gatt_bus_addr);  in intel_7505_configure()
399 	pci_write_config_dword(agp_bridge->dev, INTEL_AGPCTRL, 0x0000);  in intel_7505_configure()
402 	pci_read_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, &temp2);  in intel_7505_configure()
403 	pci_write_config_word(agp_bridge->dev, INTEL_I7505_MCHCFG, temp2 | (1 << 9));  in intel_7505_configure()
694  * driver and gmch_driver must be non-null, and find_gmch will determine
736 		return -ENOMEM;  in agp_intel_probe()
738 	bridge->capndx = cap_ptr;  in agp_intel_probe()
744 		/* In case that multiple models of gfx chip may  in agp_intel_probe()
747 		if (pdev->device == intel_agp_chipsets[i].chip_id) {  in agp_intel_probe()
748 			bridge->driver = intel_agp_chipsets[i].driver;  in agp_intel_probe()
753 	if (!bridge->driver) {  in agp_intel_probe()
755 			dev_warn(&pdev->dev, "unsupported Intel chipset [%04x/%04x]\n",  in agp_intel_probe()
756 				 pdev->vendor, pdev->device);  in agp_intel_probe()
758 		return -ENODEV;  in agp_intel_probe()
761 	bridge->dev = pdev;  in agp_intel_probe()
762 	bridge->dev_private_data = NULL;  in agp_intel_probe()
764 	dev_info(&pdev->dev, "Intel %s Chipset\n", intel_agp_chipsets[i].name);  in agp_intel_probe()
769 	* 20030610 - hamish@zot.org  in agp_intel_probe()
776 	r = &pdev->resource[0];  in agp_intel_probe()
777 	if (!r->start && r->end) {  in agp_intel_probe()
779 			dev_err(&pdev->dev, "can't assign resource 0\n");  in agp_intel_probe()
781 			return -ENODEV;  in agp_intel_probe()
788 	* 20030610 - hamish@zot.org  in agp_intel_probe()
791 		dev_err(&pdev->dev, "can't enable PCI device\n");  in agp_intel_probe()
793 		return -ENODEV;  in agp_intel_probe()
799 				bridge->capndx+PCI_AGP_STATUS,  in agp_intel_probe()
800 				&bridge->mode);  in agp_intel_probe()
825 	bridge->driver->configure();  in agp_intel_resume()
900 	.name		= "agpgart-intel",
910 		return -EINVAL;  in agp_intel_init()