2010-04-14 05:29:52 +07:00
|
|
|
/*
|
|
|
|
* Intel GTT (Graphics Translation Table) routines
|
|
|
|
*
|
|
|
|
* Caveat: This driver implements the linux agp interface, but this is far from
|
|
|
|
* a agp driver! GTT support ended up here for purely historical reasons: The
|
|
|
|
* old userspace intel graphics drivers needed an interface to map memory into
|
|
|
|
* the GTT. And the drm provides a default interface for graphic devices sitting
|
|
|
|
* on an agp port. So it made sense to fake the GTT support as an agp port to
|
|
|
|
* avoid having to create a new api.
|
|
|
|
*
|
|
|
|
* With gem this does not make much sense anymore, just needlessly complicates
|
|
|
|
* the code. But as long as the old graphics stack is still support, it's stuck
|
|
|
|
* here.
|
|
|
|
*
|
|
|
|
* /fairy-tale-mode off
|
|
|
|
*/
|
|
|
|
|
2010-09-08 22:29:51 +07:00
|
|
|
#include <linux/module.h>
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <linux/kernel.h>
|
|
|
|
#include <linux/pagemap.h>
|
|
|
|
#include <linux/agp_backend.h>
|
2010-12-22 18:37:09 +07:00
|
|
|
#include <linux/delay.h>
|
2010-09-08 22:29:51 +07:00
|
|
|
#include <asm/smp.h>
|
|
|
|
#include "agp.h"
|
|
|
|
#include "intel-agp.h"
|
2010-08-25 03:18:41 +07:00
|
|
|
#include <drm/intel-gtt.h>
|
2010-09-08 22:29:51 +07:00
|
|
|
|
2010-04-14 05:29:52 +07:00
|
|
|
/*
|
|
|
|
* If we have Intel graphics, we're not going to have anything other than
|
|
|
|
* an Intel IOMMU. So make the correct use of the PCI DMA API contingent
|
2011-08-24 07:05:25 +07:00
|
|
|
* on the Intel IOMMU support (CONFIG_INTEL_IOMMU).
|
2010-04-14 05:29:52 +07:00
|
|
|
* Only newer chipsets need to bother with this, of course.
|
|
|
|
*/
|
2011-08-24 07:05:25 +07:00
|
|
|
#ifdef CONFIG_INTEL_IOMMU
|
2010-04-14 05:29:52 +07:00
|
|
|
#define USE_PCI_DMA_API 1
|
2010-09-08 03:11:15 +07:00
|
|
|
#else
|
|
|
|
#define USE_PCI_DMA_API 0
|
2010-04-14 05:29:52 +07:00
|
|
|
#endif
|
|
|
|
|
2010-09-09 02:18:53 +07:00
|
|
|
struct intel_gtt_driver {
|
|
|
|
unsigned int gen : 8;
|
|
|
|
unsigned int is_g33 : 1;
|
|
|
|
unsigned int is_pineview : 1;
|
|
|
|
unsigned int is_ironlake : 1;
|
2010-10-31 17:37:02 +07:00
|
|
|
unsigned int has_pgtbl_enable : 1;
|
2010-09-12 21:38:55 +07:00
|
|
|
unsigned int dma_mask_size : 8;
|
2010-08-29 22:29:50 +07:00
|
|
|
/* Chipset specific GTT setup */
|
|
|
|
int (*setup)(void);
|
2010-09-12 22:11:15 +07:00
|
|
|
/* This should undo anything done in ->setup() save the unmapping
|
|
|
|
* of the mmio register file, that's done in the generic code. */
|
|
|
|
void (*cleanup)(void);
|
2010-09-08 03:41:04 +07:00
|
|
|
void (*write_entry)(dma_addr_t addr, unsigned int entry, unsigned int flags);
|
|
|
|
/* Flags is a more or less chipset specific opaque value.
|
|
|
|
* For chipsets that need to support old ums (non-gem) code, this
|
|
|
|
* needs to be identical to the various supported agp memory types! */
|
2010-09-12 02:31:04 +07:00
|
|
|
bool (*check_flags)(unsigned int flags);
|
2010-09-12 05:27:24 +07:00
|
|
|
void (*chipset_flush)(void);
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
|
2010-04-14 05:29:52 +07:00
|
|
|
static struct _intel_private {
|
2010-09-09 02:18:53 +07:00
|
|
|
const struct intel_gtt_driver *driver;
|
2010-04-14 05:29:52 +07:00
|
|
|
struct pci_dev *pcidev; /* device one */
|
2010-08-25 04:06:19 +07:00
|
|
|
struct pci_dev *bridge_dev;
|
2010-04-14 05:29:52 +07:00
|
|
|
u8 __iomem *registers;
|
2014-01-07 04:39:40 +07:00
|
|
|
phys_addr_t gtt_phys_addr;
|
2010-09-24 01:04:17 +07:00
|
|
|
u32 PGETBL_save;
|
2010-04-14 05:29:52 +07:00
|
|
|
u32 __iomem *gtt; /* I915G */
|
2011-01-21 17:54:32 +07:00
|
|
|
bool clear_fake_agp; /* on first access via agp, fill with scratch */
|
2010-04-14 05:29:52 +07:00
|
|
|
int num_dcache_entries;
|
2010-12-22 18:37:09 +07:00
|
|
|
void __iomem *i9xx_flush_page;
|
2010-11-05 19:30:14 +07:00
|
|
|
char *i81x_gtt_table;
|
2010-04-14 05:29:52 +07:00
|
|
|
struct resource ifp_resource;
|
|
|
|
int resource_valid;
|
2010-09-08 03:11:15 +07:00
|
|
|
struct page *scratch_page;
|
2013-01-19 03:30:32 +07:00
|
|
|
phys_addr_t scratch_page_dma;
|
2012-06-08 20:55:40 +07:00
|
|
|
int refcount;
|
2013-01-19 03:30:33 +07:00
|
|
|
/* Whether i915 needs to use the dmar apis or not. */
|
|
|
|
unsigned int needs_dmar : 1;
|
2013-01-19 03:30:34 +07:00
|
|
|
phys_addr_t gma_bus_addr;
|
2013-01-25 05:45:00 +07:00
|
|
|
/* Size of memory reserved for graphics by the BIOS */
|
|
|
|
unsigned int stolen_size;
|
|
|
|
/* Total number of gtt entries. */
|
|
|
|
unsigned int gtt_total_entries;
|
|
|
|
/* Part of the gtt that is mappable by the cpu, for those chips where
|
|
|
|
* this is not the full gtt. */
|
|
|
|
unsigned int gtt_mappable_entries;
|
2010-04-14 05:29:52 +07:00
|
|
|
} intel_private;
|
|
|
|
|
2010-09-09 02:18:53 +07:00
|
|
|
#define INTEL_GTT_GEN intel_private.driver->gen
|
|
|
|
#define IS_G33 intel_private.driver->is_g33
|
|
|
|
#define IS_PINEVIEW intel_private.driver->is_pineview
|
|
|
|
#define IS_IRONLAKE intel_private.driver->is_ironlake
|
2010-10-31 17:37:02 +07:00
|
|
|
#define HAS_PGTBL_EN intel_private.driver->has_pgtbl_enable
|
2010-09-09 02:18:53 +07:00
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2012-06-01 21:20:22 +07:00
|
|
|
static int intel_gtt_map_memory(struct page **pages,
|
|
|
|
unsigned int num_entries,
|
|
|
|
struct sg_table *st)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
struct scatterlist *sg;
|
|
|
|
int i;
|
|
|
|
|
2010-11-06 17:18:58 +07:00
|
|
|
DBG("try mapping %lu pages\n", (unsigned long)num_entries);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
if (sg_alloc_table(st, num_entries, GFP_KERNEL))
|
2010-07-25 00:29:37 +07:00
|
|
|
goto err;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
for_each_sg(st->sgl, sg, num_entries, i)
|
2010-11-06 17:18:58 +07:00
|
|
|
sg_set_page(sg, pages[i], PAGE_SIZE, 0);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
if (!pci_map_sg(intel_private.pcidev,
|
|
|
|
st->sgl, st->nents, PCI_DMA_BIDIRECTIONAL))
|
2010-07-25 00:29:37 +07:00
|
|
|
goto err;
|
|
|
|
|
2010-04-14 05:29:52 +07:00
|
|
|
return 0;
|
2010-07-25 00:29:37 +07:00
|
|
|
|
|
|
|
err:
|
2012-06-01 21:20:22 +07:00
|
|
|
sg_free_table(st);
|
2010-07-25 00:29:37 +07:00
|
|
|
return -ENOMEM;
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
static void intel_gtt_unmap_memory(struct scatterlist *sg_list, int num_sg)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-11-06 17:18:58 +07:00
|
|
|
struct sg_table st;
|
2010-04-14 05:29:52 +07:00
|
|
|
DBG("try unmapping %lu pages\n", (unsigned long)mem->page_count);
|
|
|
|
|
2010-11-06 17:18:58 +07:00
|
|
|
pci_unmap_sg(intel_private.pcidev, sg_list,
|
|
|
|
num_sg, PCI_DMA_BIDIRECTIONAL);
|
|
|
|
|
|
|
|
st.sgl = sg_list;
|
|
|
|
st.orig_nents = st.nents = num_sg;
|
|
|
|
|
|
|
|
sg_free_table(&st);
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2010-08-27 22:51:29 +07:00
|
|
|
static void intel_fake_agp_enable(struct agp_bridge_data *bridge, u32 mode)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Exists to support ARGB cursors */
|
|
|
|
static struct page *i8xx_alloc_pages(void)
|
|
|
|
{
|
|
|
|
struct page *page;
|
|
|
|
|
|
|
|
page = alloc_pages(GFP_KERNEL | GFP_DMA32, 2);
|
|
|
|
if (page == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (set_pages_uc(page, 4) < 0) {
|
|
|
|
set_pages_wb(page, 4);
|
|
|
|
__free_pages(page, 2);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
atomic_inc(&agp_bridge->current_memory_agp);
|
|
|
|
return page;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void i8xx_destroy_pages(struct page *page)
|
|
|
|
{
|
|
|
|
if (page == NULL)
|
|
|
|
return;
|
|
|
|
|
|
|
|
set_pages_wb(page, 4);
|
|
|
|
__free_pages(page, 2);
|
|
|
|
atomic_dec(&agp_bridge->current_memory_agp);
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-05 19:30:14 +07:00
|
|
|
#define I810_GTT_ORDER 4
|
|
|
|
static int i810_setup(void)
|
|
|
|
{
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
phys_addr_t reg_addr;
|
2010-11-05 19:30:14 +07:00
|
|
|
char *gtt_table;
|
|
|
|
|
|
|
|
/* i81x does not preallocate the gtt. It's always 64kb in size. */
|
|
|
|
gtt_table = alloc_gatt_pages(I810_GTT_ORDER);
|
|
|
|
if (gtt_table == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
intel_private.i81x_gtt_table = gtt_table;
|
|
|
|
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
reg_addr = pci_resource_start(intel_private.pcidev, I810_MMADR_BAR);
|
2010-11-05 19:30:14 +07:00
|
|
|
|
|
|
|
intel_private.registers = ioremap(reg_addr, KB(64));
|
|
|
|
if (!intel_private.registers)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
writel(virt_to_phys(gtt_table) | I810_PGETBL_ENABLED,
|
|
|
|
intel_private.registers+I810_PGETBL_CTL);
|
|
|
|
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt_phys_addr = reg_addr + I810_PTE_BASE;
|
2010-11-05 19:30:14 +07:00
|
|
|
|
|
|
|
if ((readl(intel_private.registers+I810_DRAM_CTL)
|
|
|
|
& I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
|
|
|
|
dev_info(&intel_private.pcidev->dev,
|
|
|
|
"detected 4MB dedicated video ram\n");
|
|
|
|
intel_private.num_dcache_entries = 1024;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void i810_cleanup(void)
|
|
|
|
{
|
|
|
|
writel(0, intel_private.registers+I810_PGETBL_CTL);
|
|
|
|
free_gatt_pages(intel_private.i81x_gtt_table, I810_GTT_ORDER);
|
|
|
|
}
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-11-05 21:43:35 +07:00
|
|
|
static int i810_insert_dcache_entries(struct agp_memory *mem, off_t pg_start,
|
|
|
|
int type)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-11-05 02:07:57 +07:00
|
|
|
int i;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
if ((pg_start + mem->page_count)
|
|
|
|
> intel_private.num_dcache_entries)
|
|
|
|
return -EINVAL;
|
2010-11-05 02:07:57 +07:00
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
if (!mem->is_flushed)
|
|
|
|
global_cache_flush();
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
for (i = pg_start; i < (pg_start + mem->page_count); i++) {
|
|
|
|
dma_addr_t addr = i << PAGE_SHIFT;
|
|
|
|
intel_private.driver->write_entry(addr,
|
|
|
|
i, type);
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
2015-01-26 17:47:10 +07:00
|
|
|
wmb();
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
return 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* The i810/i830 requires a physical address to program its mouse
|
|
|
|
* pointer into hardware.
|
|
|
|
* However the Xserver still writes to it through the agp aperture.
|
|
|
|
*/
|
|
|
|
static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
|
|
|
|
{
|
|
|
|
struct agp_memory *new;
|
|
|
|
struct page *page;
|
|
|
|
|
|
|
|
switch (pg_count) {
|
|
|
|
case 1: page = agp_bridge->driver->agp_alloc_page(agp_bridge);
|
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
/* kludge to get 4 physical pages for ARGB cursor */
|
|
|
|
page = i8xx_alloc_pages();
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (page == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
new = agp_create_memory(pg_count);
|
|
|
|
if (new == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
new->pages[0] = page;
|
|
|
|
if (pg_count == 4) {
|
|
|
|
/* kludge to get 4 physical pages for ARGB cursor */
|
|
|
|
new->pages[1] = new->pages[0] + 1;
|
|
|
|
new->pages[2] = new->pages[1] + 1;
|
|
|
|
new->pages[3] = new->pages[2] + 1;
|
|
|
|
}
|
|
|
|
new->page_count = pg_count;
|
|
|
|
new->num_scratch_pages = pg_count;
|
|
|
|
new->type = AGP_PHYS_MEMORY;
|
|
|
|
new->physical = page_to_phys(new->pages[0]);
|
|
|
|
return new;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void intel_i810_free_by_type(struct agp_memory *curr)
|
|
|
|
{
|
|
|
|
agp_free_key(curr->key);
|
|
|
|
if (curr->type == AGP_PHYS_MEMORY) {
|
|
|
|
if (curr->page_count == 4)
|
|
|
|
i8xx_destroy_pages(curr->pages[0]);
|
|
|
|
else {
|
|
|
|
agp_bridge->driver->agp_destroy_page(curr->pages[0],
|
|
|
|
AGP_PAGE_DESTROY_UNMAP);
|
|
|
|
agp_bridge->driver->agp_destroy_page(curr->pages[0],
|
|
|
|
AGP_PAGE_DESTROY_FREE);
|
|
|
|
}
|
|
|
|
agp_free_page_array(curr);
|
|
|
|
}
|
|
|
|
kfree(curr);
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-09-08 03:11:15 +07:00
|
|
|
static int intel_gtt_setup_scratch_page(void)
|
|
|
|
{
|
|
|
|
struct page *page;
|
|
|
|
dma_addr_t dma_addr;
|
|
|
|
|
|
|
|
page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
|
|
|
|
if (page == NULL)
|
|
|
|
return -ENOMEM;
|
|
|
|
set_pages_uc(page, 1);
|
|
|
|
|
2013-01-19 03:30:33 +07:00
|
|
|
if (intel_private.needs_dmar) {
|
2010-09-08 03:11:15 +07:00
|
|
|
dma_addr = pci_map_page(intel_private.pcidev, page, 0,
|
|
|
|
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
|
|
|
|
if (pci_dma_mapping_error(intel_private.pcidev, dma_addr))
|
|
|
|
return -EINVAL;
|
|
|
|
|
2013-01-19 03:30:32 +07:00
|
|
|
intel_private.scratch_page_dma = dma_addr;
|
2010-09-08 03:11:15 +07:00
|
|
|
} else
|
2013-01-19 03:30:32 +07:00
|
|
|
intel_private.scratch_page_dma = page_to_phys(page);
|
2010-09-08 03:11:15 +07:00
|
|
|
|
|
|
|
intel_private.scratch_page = page;
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-11-05 02:07:57 +07:00
|
|
|
static void i810_write_entry(dma_addr_t addr, unsigned int entry,
|
|
|
|
unsigned int flags)
|
|
|
|
{
|
|
|
|
u32 pte_flags = I810_PTE_VALID;
|
|
|
|
|
|
|
|
switch (flags) {
|
|
|
|
case AGP_DCACHE_MEMORY:
|
|
|
|
pte_flags |= I810_PTE_LOCAL;
|
|
|
|
break;
|
|
|
|
case AGP_USER_CACHED_MEMORY:
|
|
|
|
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
2015-01-26 17:47:10 +07:00
|
|
|
writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
|
2010-11-05 02:07:57 +07:00
|
|
|
}
|
|
|
|
|
2010-11-10 00:53:20 +07:00
|
|
|
static const struct aper_size_info_fixed intel_fake_agp_sizes[] = {
|
2010-11-05 19:30:14 +07:00
|
|
|
{32, 8192, 3},
|
|
|
|
{64, 16384, 4},
|
2010-04-14 05:29:52 +07:00
|
|
|
{128, 32768, 5},
|
|
|
|
{256, 65536, 6},
|
|
|
|
{512, 131072, 7},
|
|
|
|
};
|
|
|
|
|
2010-11-23 21:24:24 +07:00
|
|
|
static unsigned int intel_gtt_stolen_size(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
u16 gmch_ctrl;
|
|
|
|
u8 rdct;
|
|
|
|
int local = 0;
|
|
|
|
static const int ddt[4] = { 0, 16, 32, 64 };
|
2010-08-27 21:13:52 +07:00
|
|
|
unsigned int stolen_size = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-05 19:30:14 +07:00
|
|
|
if (INTEL_GTT_GEN == 1)
|
|
|
|
return 0; /* no stolen mem on i81x */
|
|
|
|
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, &gmch_ctrl);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-08-25 04:06:19 +07:00
|
|
|
if (intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
|
|
|
|
intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
|
2010-04-14 05:29:52 +07:00
|
|
|
switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
|
|
|
|
case I830_GMCH_GMS_STOLEN_512:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = KB(512);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I830_GMCH_GMS_STOLEN_1024:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(1);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I830_GMCH_GMS_STOLEN_8192:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(8);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I830_GMCH_GMS_LOCAL:
|
|
|
|
rdct = readb(intel_private.registers+I830_RDRAM_CHANNEL_TYPE);
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = (I830_RDRAM_ND(rdct) + 1) *
|
2010-04-14 05:29:52 +07:00
|
|
|
MB(ddt[I830_RDRAM_DDT(rdct)]);
|
|
|
|
local = 1;
|
|
|
|
break;
|
|
|
|
default:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
|
|
|
|
case I855_GMCH_GMS_STOLEN_1M:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(1);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I855_GMCH_GMS_STOLEN_4M:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(4);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I855_GMCH_GMS_STOLEN_8M:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(8);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I855_GMCH_GMS_STOLEN_16M:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(16);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I855_GMCH_GMS_STOLEN_32M:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = MB(32);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I915_GMCH_GMS_STOLEN_48M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(48);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case I915_GMCH_GMS_STOLEN_64M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(64);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case G33_GMCH_GMS_STOLEN_128M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(128);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case G33_GMCH_GMS_STOLEN_256M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(256);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case INTEL_GMCH_GMS_STOLEN_96M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(96);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case INTEL_GMCH_GMS_STOLEN_160M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(160);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case INTEL_GMCH_GMS_STOLEN_224M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(224);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
case INTEL_GMCH_GMS_STOLEN_352M:
|
2010-08-27 21:25:54 +07:00
|
|
|
stolen_size = MB(352);
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
default:
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
2010-09-09 02:01:04 +07:00
|
|
|
|
2010-11-23 19:33:54 +07:00
|
|
|
if (stolen_size > 0) {
|
2010-08-25 04:06:19 +07:00
|
|
|
dev_info(&intel_private.bridge_dev->dev, "detected %dK %s memory\n",
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size / KB(1), local ? "local" : "stolen");
|
2010-04-14 05:29:52 +07:00
|
|
|
} else {
|
2010-08-25 04:06:19 +07:00
|
|
|
dev_info(&intel_private.bridge_dev->dev,
|
2010-04-14 05:29:52 +07:00
|
|
|
"no pre-allocated video memory detected\n");
|
2010-08-27 21:13:52 +07:00
|
|
|
stolen_size = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2010-11-23 21:24:24 +07:00
|
|
|
return stolen_size;
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2010-09-24 23:25:59 +07:00
|
|
|
static void i965_adjust_pgetbl_size(unsigned int size_flag)
|
|
|
|
{
|
|
|
|
u32 pgetbl_ctl, pgetbl_ctl2;
|
|
|
|
|
|
|
|
/* ensure that ppgtt is disabled */
|
|
|
|
pgetbl_ctl2 = readl(intel_private.registers+I965_PGETBL_CTL2);
|
|
|
|
pgetbl_ctl2 &= ~I810_PGETBL_ENABLED;
|
|
|
|
writel(pgetbl_ctl2, intel_private.registers+I965_PGETBL_CTL2);
|
|
|
|
|
|
|
|
/* write the new ggtt size */
|
|
|
|
pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL);
|
|
|
|
pgetbl_ctl &= ~I965_PGETBL_SIZE_MASK;
|
|
|
|
pgetbl_ctl |= size_flag;
|
|
|
|
writel(pgetbl_ctl, intel_private.registers+I810_PGETBL_CTL);
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int i965_gtt_total_entries(void)
|
2010-08-27 22:12:41 +07:00
|
|
|
{
|
|
|
|
int size;
|
2010-09-24 23:25:59 +07:00
|
|
|
u32 pgetbl_ctl;
|
|
|
|
u16 gmch_ctl;
|
2010-08-27 22:12:41 +07:00
|
|
|
|
2010-09-24 23:25:59 +07:00
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, &gmch_ctl);
|
2010-08-27 22:12:41 +07:00
|
|
|
|
2010-09-24 23:25:59 +07:00
|
|
|
if (INTEL_GTT_GEN == 5) {
|
|
|
|
switch (gmch_ctl & G4x_GMCH_SIZE_MASK) {
|
|
|
|
case G4x_GMCH_SIZE_1M:
|
|
|
|
case G4x_GMCH_SIZE_VT_1M:
|
|
|
|
i965_adjust_pgetbl_size(I965_PGETBL_SIZE_1MB);
|
2010-08-27 22:12:41 +07:00
|
|
|
break;
|
2010-09-24 23:25:59 +07:00
|
|
|
case G4x_GMCH_SIZE_VT_1_5M:
|
|
|
|
i965_adjust_pgetbl_size(I965_PGETBL_SIZE_1_5MB);
|
2010-08-27 22:12:41 +07:00
|
|
|
break;
|
2010-09-24 23:25:59 +07:00
|
|
|
case G4x_GMCH_SIZE_2M:
|
|
|
|
case G4x_GMCH_SIZE_VT_2M:
|
|
|
|
i965_adjust_pgetbl_size(I965_PGETBL_SIZE_2MB);
|
2010-08-27 22:12:41 +07:00
|
|
|
break;
|
|
|
|
}
|
2010-09-24 23:25:59 +07:00
|
|
|
}
|
2010-08-28 16:04:32 +07:00
|
|
|
|
2010-09-24 23:25:59 +07:00
|
|
|
pgetbl_ctl = readl(intel_private.registers+I810_PGETBL_CTL);
|
|
|
|
|
|
|
|
switch (pgetbl_ctl & I965_PGETBL_SIZE_MASK) {
|
|
|
|
case I965_PGETBL_SIZE_128KB:
|
|
|
|
size = KB(128);
|
|
|
|
break;
|
|
|
|
case I965_PGETBL_SIZE_256KB:
|
|
|
|
size = KB(256);
|
|
|
|
break;
|
|
|
|
case I965_PGETBL_SIZE_512KB:
|
|
|
|
size = KB(512);
|
|
|
|
break;
|
|
|
|
/* GTT pagetable sizes bigger than 512KB are not possible on G33! */
|
|
|
|
case I965_PGETBL_SIZE_1MB:
|
|
|
|
size = KB(1024);
|
|
|
|
break;
|
|
|
|
case I965_PGETBL_SIZE_2MB:
|
|
|
|
size = KB(2048);
|
|
|
|
break;
|
|
|
|
case I965_PGETBL_SIZE_1_5MB:
|
|
|
|
size = KB(1024 + 512);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
dev_info(&intel_private.pcidev->dev,
|
|
|
|
"unknown page table size, assuming 512KB\n");
|
|
|
|
size = KB(512);
|
|
|
|
}
|
|
|
|
|
|
|
|
return size/4;
|
|
|
|
}
|
|
|
|
|
|
|
|
static unsigned int intel_gtt_total_entries(void)
|
|
|
|
{
|
|
|
|
if (IS_G33 || INTEL_GTT_GEN == 4 || INTEL_GTT_GEN == 5)
|
|
|
|
return i965_gtt_total_entries();
|
2012-11-05 00:21:29 +07:00
|
|
|
else {
|
2010-08-27 22:12:41 +07:00
|
|
|
/* On previous hardware, the GTT size was just what was
|
|
|
|
* required to map the aperture.
|
|
|
|
*/
|
2013-01-25 05:45:00 +07:00
|
|
|
return intel_private.gtt_mappable_entries;
|
2010-08-27 22:12:41 +07:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-09-09 02:01:04 +07:00
|
|
|
static unsigned int intel_gtt_mappable_entries(void)
|
|
|
|
{
|
|
|
|
unsigned int aperture_size;
|
|
|
|
|
2010-11-05 19:30:14 +07:00
|
|
|
if (INTEL_GTT_GEN == 1) {
|
|
|
|
u32 smram_miscc;
|
|
|
|
|
|
|
|
pci_read_config_dword(intel_private.bridge_dev,
|
|
|
|
I810_SMRAM_MISCC, &smram_miscc);
|
|
|
|
|
|
|
|
if ((smram_miscc & I810_GFX_MEM_WIN_SIZE)
|
|
|
|
== I810_GFX_MEM_WIN_32M)
|
|
|
|
aperture_size = MB(32);
|
|
|
|
else
|
|
|
|
aperture_size = MB(64);
|
|
|
|
} else if (INTEL_GTT_GEN == 2) {
|
2010-09-15 01:30:13 +07:00
|
|
|
u16 gmch_ctrl;
|
2010-09-09 02:01:04 +07:00
|
|
|
|
2010-09-15 01:30:13 +07:00
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, &gmch_ctrl);
|
2010-09-09 02:01:04 +07:00
|
|
|
|
|
|
|
if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_64M)
|
2010-09-15 01:30:13 +07:00
|
|
|
aperture_size = MB(64);
|
2010-09-09 02:01:04 +07:00
|
|
|
else
|
2010-09-15 01:30:13 +07:00
|
|
|
aperture_size = MB(128);
|
2010-09-01 03:30:43 +07:00
|
|
|
} else {
|
2010-09-09 02:01:04 +07:00
|
|
|
/* 9xx supports large sizes, just look at the length */
|
|
|
|
aperture_size = pci_resource_len(intel_private.pcidev, 2);
|
|
|
|
}
|
|
|
|
|
|
|
|
return aperture_size >> PAGE_SHIFT;
|
|
|
|
}
|
|
|
|
|
2010-09-08 03:11:15 +07:00
|
|
|
static void intel_gtt_teardown_scratch_page(void)
|
|
|
|
{
|
|
|
|
set_pages_wb(intel_private.scratch_page, 1);
|
2016-01-27 20:37:58 +07:00
|
|
|
if (intel_private.needs_dmar)
|
|
|
|
pci_unmap_page(intel_private.pcidev,
|
|
|
|
intel_private.scratch_page_dma,
|
|
|
|
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
|
2010-09-08 03:11:15 +07:00
|
|
|
__free_page(intel_private.scratch_page);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void intel_gtt_cleanup(void)
|
|
|
|
{
|
2010-09-12 22:11:15 +07:00
|
|
|
intel_private.driver->cleanup();
|
|
|
|
|
2010-09-08 03:11:15 +07:00
|
|
|
iounmap(intel_private.gtt);
|
|
|
|
iounmap(intel_private.registers);
|
2010-11-05 02:07:57 +07:00
|
|
|
|
2010-09-08 03:11:15 +07:00
|
|
|
intel_gtt_teardown_scratch_page();
|
|
|
|
}
|
|
|
|
|
2013-02-13 16:31:53 +07:00
|
|
|
/* Certain Gen5 chipsets require require idling the GPU before
|
|
|
|
* unmapping anything from the GTT when VT-d is enabled.
|
|
|
|
*/
|
|
|
|
static inline int needs_ilk_vtd_wa(void)
|
|
|
|
{
|
|
|
|
#ifdef CONFIG_INTEL_IOMMU
|
|
|
|
const unsigned short gpu_devid = intel_private.pcidev->device;
|
|
|
|
|
|
|
|
/* Query intel_iommu to see if we need the workaround. Presumably that
|
|
|
|
* was loaded first.
|
|
|
|
*/
|
2015-06-28 20:18:16 +07:00
|
|
|
if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG ||
|
2013-02-13 16:31:53 +07:00
|
|
|
gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) &&
|
|
|
|
intel_iommu_gfx_mapped)
|
|
|
|
return 1;
|
|
|
|
#endif
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static bool intel_gtt_can_wc(void)
|
|
|
|
{
|
|
|
|
if (INTEL_GTT_GEN <= 2)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
if (INTEL_GTT_GEN >= 6)
|
|
|
|
return false;
|
|
|
|
|
|
|
|
/* Reports of major corruption with ILK vt'd enabled */
|
|
|
|
if (needs_ilk_vtd_wa())
|
|
|
|
return false;
|
|
|
|
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2010-09-09 02:01:04 +07:00
|
|
|
static int intel_gtt_init(void)
|
|
|
|
{
|
2010-08-29 22:27:36 +07:00
|
|
|
u32 gtt_map_size;
|
2014-01-04 08:28:06 +07:00
|
|
|
int ret, bar;
|
2010-08-29 19:18:49 +07:00
|
|
|
|
|
|
|
ret = intel_private.driver->setup();
|
|
|
|
if (ret != 0)
|
|
|
|
return ret;
|
2010-08-29 22:27:36 +07:00
|
|
|
|
2013-01-25 05:45:00 +07:00
|
|
|
intel_private.gtt_mappable_entries = intel_gtt_mappable_entries();
|
|
|
|
intel_private.gtt_total_entries = intel_gtt_total_entries();
|
2010-08-29 22:27:36 +07:00
|
|
|
|
2010-09-24 01:04:17 +07:00
|
|
|
/* save the PGETBL reg for resume */
|
|
|
|
intel_private.PGETBL_save =
|
|
|
|
readl(intel_private.registers+I810_PGETBL_CTL)
|
|
|
|
& ~I810_PGETBL_ENABLED;
|
2010-10-31 17:37:02 +07:00
|
|
|
/* we only ever restore the register when enabling the PGTBL... */
|
|
|
|
if (HAS_PGTBL_EN)
|
|
|
|
intel_private.PGETBL_save |= I810_PGETBL_ENABLED;
|
2010-09-24 01:04:17 +07:00
|
|
|
|
2010-09-12 19:04:03 +07:00
|
|
|
dev_info(&intel_private.bridge_dev->dev,
|
|
|
|
"detected gtt size: %dK total, %dK mappable\n",
|
2013-01-25 05:45:00 +07:00
|
|
|
intel_private.gtt_total_entries * 4,
|
|
|
|
intel_private.gtt_mappable_entries * 4);
|
2010-09-12 19:04:03 +07:00
|
|
|
|
2013-01-25 05:45:00 +07:00
|
|
|
gtt_map_size = intel_private.gtt_total_entries * 4;
|
2010-08-29 22:27:36 +07:00
|
|
|
|
2012-09-14 17:57:47 +07:00
|
|
|
intel_private.gtt = NULL;
|
2013-02-13 16:31:53 +07:00
|
|
|
if (intel_gtt_can_wc())
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt = ioremap_wc(intel_private.gtt_phys_addr,
|
2012-09-14 17:57:47 +07:00
|
|
|
gtt_map_size);
|
|
|
|
if (intel_private.gtt == NULL)
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt = ioremap(intel_private.gtt_phys_addr,
|
2012-09-14 17:57:47 +07:00
|
|
|
gtt_map_size);
|
|
|
|
if (intel_private.gtt == NULL) {
|
2010-09-12 22:11:15 +07:00
|
|
|
intel_private.driver->cleanup();
|
2010-08-29 22:27:36 +07:00
|
|
|
iounmap(intel_private.registers);
|
|
|
|
return -ENOMEM;
|
|
|
|
}
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-08-29 22:27:36 +07:00
|
|
|
global_cache_flush(); /* FIXME: ? */
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-08-29 22:27:36 +07:00
|
|
|
|
2013-01-25 05:45:00 +07:00
|
|
|
intel_private.stolen_size = intel_gtt_stolen_size();
|
2010-09-09 02:01:04 +07:00
|
|
|
|
2013-01-19 03:30:33 +07:00
|
|
|
intel_private.needs_dmar = USE_PCI_DMA_API && INTEL_GTT_GEN > 2;
|
2011-01-12 08:38:37 +07:00
|
|
|
|
2010-09-08 03:11:15 +07:00
|
|
|
ret = intel_gtt_setup_scratch_page();
|
|
|
|
if (ret != 0) {
|
|
|
|
intel_gtt_cleanup();
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
2012-06-07 20:56:02 +07:00
|
|
|
if (INTEL_GTT_GEN <= 2)
|
2014-01-04 08:28:06 +07:00
|
|
|
bar = I810_GMADR_BAR;
|
2012-06-07 20:56:02 +07:00
|
|
|
else
|
2014-01-04 08:28:06 +07:00
|
|
|
bar = I915_GMADR_BAR;
|
2012-06-07 20:56:02 +07:00
|
|
|
|
2014-01-04 08:28:06 +07:00
|
|
|
intel_private.gma_bus_addr = pci_bus_address(intel_private.pcidev, bar);
|
2010-09-09 02:01:04 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-08-27 20:33:26 +07:00
|
|
|
static int intel_fake_agp_fetch_size(void)
|
|
|
|
{
|
2010-09-14 18:12:11 +07:00
|
|
|
int num_sizes = ARRAY_SIZE(intel_fake_agp_sizes);
|
2010-08-27 20:33:26 +07:00
|
|
|
unsigned int aper_size;
|
|
|
|
int i;
|
|
|
|
|
2013-01-25 05:45:00 +07:00
|
|
|
aper_size = (intel_private.gtt_mappable_entries << PAGE_SHIFT) / MB(1);
|
2010-08-27 20:33:26 +07:00
|
|
|
|
|
|
|
for (i = 0; i < num_sizes; i++) {
|
2010-08-27 22:51:29 +07:00
|
|
|
if (aper_size == intel_fake_agp_sizes[i].size) {
|
2010-09-14 18:12:11 +07:00
|
|
|
agp_bridge->current_size =
|
|
|
|
(void *) (intel_fake_agp_sizes + i);
|
2010-08-27 20:33:26 +07:00
|
|
|
return aper_size;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-08-27 20:33:26 +07:00
|
|
|
|
2010-09-12 22:11:15 +07:00
|
|
|
static void i830_cleanup(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The chipset_flush interface needs to get data that has already been
|
|
|
|
* flushed out of the CPU all the way out to main memory, because the GPU
|
|
|
|
* doesn't snoop those buffers.
|
|
|
|
*
|
|
|
|
* The 8xx series doesn't have the same lovely interface for flushing the
|
|
|
|
* chipset write buffers that the later chips do. According to the 865
|
|
|
|
* specs, it's 64 octwords, or 1KB. So, to get those previous things in
|
|
|
|
* that buffer out, we just fill 1KB and clflush it out, on the assumption
|
|
|
|
* that it'll push whatever was in there out. It appears to work.
|
|
|
|
*/
|
2010-09-12 05:27:24 +07:00
|
|
|
static void i830_chipset_flush(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-12-22 18:37:09 +07:00
|
|
|
unsigned long timeout = jiffies + msecs_to_jiffies(1000);
|
|
|
|
|
|
|
|
/* Forcibly evict everything from the CPU write buffers.
|
|
|
|
* clflush appears to be insufficient.
|
|
|
|
*/
|
|
|
|
wbinvd_on_all_cpus();
|
|
|
|
|
|
|
|
/* Now we've only seen documents for this magic bit on 855GM,
|
|
|
|
* we hope it exists for the other gen2 chipsets...
|
|
|
|
*
|
|
|
|
* Also works as advertised on my 845G.
|
|
|
|
*/
|
|
|
|
writel(readl(intel_private.registers+I830_HIC) | (1<<31),
|
|
|
|
intel_private.registers+I830_HIC);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-12-22 18:37:09 +07:00
|
|
|
while (readl(intel_private.registers+I830_HIC) & (1<<31)) {
|
|
|
|
if (time_after(jiffies, timeout))
|
|
|
|
break;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-12-22 18:37:09 +07:00
|
|
|
udelay(50);
|
|
|
|
}
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2010-09-08 03:41:04 +07:00
|
|
|
static void i830_write_entry(dma_addr_t addr, unsigned int entry,
|
|
|
|
unsigned int flags)
|
|
|
|
{
|
|
|
|
u32 pte_flags = I810_PTE_VALID;
|
2010-11-05 02:07:57 +07:00
|
|
|
|
2010-11-05 00:41:50 +07:00
|
|
|
if (flags == AGP_USER_CACHED_MEMORY)
|
2010-09-08 03:41:04 +07:00
|
|
|
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
|
|
|
|
2015-01-26 17:47:10 +07:00
|
|
|
writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
|
2010-09-08 03:41:04 +07:00
|
|
|
}
|
|
|
|
|
2012-06-07 20:56:03 +07:00
|
|
|
bool intel_enable_gtt(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-10-30 00:11:26 +07:00
|
|
|
u8 __iomem *reg;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-10-31 17:37:02 +07:00
|
|
|
if (INTEL_GTT_GEN == 2) {
|
|
|
|
u16 gmch_ctrl;
|
2010-08-29 22:29:50 +07:00
|
|
|
|
2010-10-31 17:37:02 +07:00
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, &gmch_ctrl);
|
|
|
|
gmch_ctrl |= I830_GMCH_ENABLED;
|
|
|
|
pci_write_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, gmch_ctrl);
|
|
|
|
|
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
|
|
I830_GMCH_CTRL, &gmch_ctrl);
|
|
|
|
if ((gmch_ctrl & I830_GMCH_ENABLED) == 0) {
|
|
|
|
dev_err(&intel_private.pcidev->dev,
|
|
|
|
"failed to enable the GTT: GMCH_CTRL=%x\n",
|
|
|
|
gmch_ctrl);
|
|
|
|
return false;
|
|
|
|
}
|
2010-10-30 00:11:26 +07:00
|
|
|
}
|
|
|
|
|
2010-12-23 17:40:38 +07:00
|
|
|
/* On the resume path we may be adjusting the PGTBL value, so
|
|
|
|
* be paranoid and flush all chipset write buffers...
|
|
|
|
*/
|
|
|
|
if (INTEL_GTT_GEN >= 3)
|
|
|
|
writel(0, intel_private.registers+GFX_FLSH_CNTL);
|
|
|
|
|
2010-10-30 00:11:26 +07:00
|
|
|
reg = intel_private.registers+I810_PGETBL_CTL;
|
2010-10-31 17:37:02 +07:00
|
|
|
writel(intel_private.PGETBL_save, reg);
|
|
|
|
if (HAS_PGTBL_EN && (readl(reg) & I810_PGETBL_ENABLED) == 0) {
|
2010-10-30 00:11:26 +07:00
|
|
|
dev_err(&intel_private.pcidev->dev,
|
2010-10-31 17:37:02 +07:00
|
|
|
"failed to enable the GTT: PGETBL=%x [expected %x]\n",
|
2010-10-30 00:11:26 +07:00
|
|
|
readl(reg), intel_private.PGETBL_save);
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2010-12-23 17:40:38 +07:00
|
|
|
if (INTEL_GTT_GEN >= 3)
|
|
|
|
writel(0, intel_private.registers+GFX_FLSH_CNTL);
|
|
|
|
|
2010-10-30 00:11:26 +07:00
|
|
|
return true;
|
2010-08-29 22:29:50 +07:00
|
|
|
}
|
2012-06-07 20:56:03 +07:00
|
|
|
EXPORT_SYMBOL(intel_enable_gtt);
|
2010-08-29 22:29:50 +07:00
|
|
|
|
|
|
|
static int i830_setup(void)
|
|
|
|
{
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
phys_addr_t reg_addr;
|
2010-08-29 22:29:50 +07:00
|
|
|
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
reg_addr = pci_resource_start(intel_private.pcidev, I810_MMADR_BAR);
|
2010-08-29 22:29:50 +07:00
|
|
|
|
|
|
|
intel_private.registers = ioremap(reg_addr, KB(64));
|
2010-04-14 05:29:52 +07:00
|
|
|
if (!intel_private.registers)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt_phys_addr = reg_addr + I810_PTE_BASE;
|
2010-08-29 22:29:50 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-08-29 19:18:49 +07:00
|
|
|
static int intel_fake_agp_create_gatt_table(struct agp_bridge_data *bridge)
|
2010-08-29 22:29:50 +07:00
|
|
|
{
|
|
|
|
agp_bridge->gatt_table_real = NULL;
|
2010-04-14 05:29:52 +07:00
|
|
|
agp_bridge->gatt_table = NULL;
|
2010-08-29 22:29:50 +07:00
|
|
|
agp_bridge->gatt_bus_addr = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-08-27 22:51:29 +07:00
|
|
|
static int intel_fake_agp_free_gatt_table(struct agp_bridge_data *bridge)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-09-08 03:41:04 +07:00
|
|
|
static int intel_fake_agp_configure(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-10-30 00:11:26 +07:00
|
|
|
if (!intel_enable_gtt())
|
|
|
|
return -EIO;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2011-01-21 17:54:32 +07:00
|
|
|
intel_private.clear_fake_agp = true;
|
2013-01-19 03:30:34 +07:00
|
|
|
agp_bridge->gart_bus_addr = intel_private.gma_bus_addr;
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-09-12 02:31:04 +07:00
|
|
|
static bool i830_check_flags(unsigned int flags)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-09-12 02:31:04 +07:00
|
|
|
switch (flags) {
|
|
|
|
case 0:
|
|
|
|
case AGP_PHYS_MEMORY:
|
|
|
|
case AGP_USER_CACHED_MEMORY:
|
|
|
|
case AGP_USER_MEMORY:
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
2016-06-10 15:52:59 +07:00
|
|
|
void intel_gtt_insert_page(dma_addr_t addr,
|
|
|
|
unsigned int pg,
|
|
|
|
unsigned int flags)
|
|
|
|
{
|
|
|
|
intel_private.driver->write_entry(addr, pg, flags);
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(intel_gtt_insert_page);
|
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
void intel_gtt_insert_sg_entries(struct sg_table *st,
|
2010-11-06 17:18:58 +07:00
|
|
|
unsigned int pg_start,
|
|
|
|
unsigned int flags)
|
2010-09-12 03:12:11 +07:00
|
|
|
{
|
|
|
|
struct scatterlist *sg;
|
|
|
|
unsigned int len, m;
|
|
|
|
int i, j;
|
|
|
|
|
|
|
|
j = pg_start;
|
|
|
|
|
|
|
|
/* sg may merge pages, but we have to separate
|
|
|
|
* per-page addr for GTT */
|
2012-06-01 21:20:22 +07:00
|
|
|
for_each_sg(st->sgl, sg, st->nents, i) {
|
2010-09-12 03:12:11 +07:00
|
|
|
len = sg_dma_len(sg) >> PAGE_SHIFT;
|
|
|
|
for (m = 0; m < len; m++) {
|
|
|
|
dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT);
|
2012-06-01 21:20:22 +07:00
|
|
|
intel_private.driver->write_entry(addr, j, flags);
|
2010-09-12 03:12:11 +07:00
|
|
|
j++;
|
|
|
|
}
|
|
|
|
}
|
2015-01-26 17:47:10 +07:00
|
|
|
wmb();
|
2010-09-12 03:12:11 +07:00
|
|
|
}
|
2010-11-06 17:18:58 +07:00
|
|
|
EXPORT_SYMBOL(intel_gtt_insert_sg_entries);
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2012-06-01 21:20:22 +07:00
|
|
|
static void intel_gtt_insert_pages(unsigned int first_entry,
|
|
|
|
unsigned int num_entries,
|
|
|
|
struct page **pages,
|
|
|
|
unsigned int flags)
|
2010-11-06 17:18:58 +07:00
|
|
|
{
|
|
|
|
int i, j;
|
|
|
|
|
|
|
|
for (i = 0, j = first_entry; i < num_entries; i++, j++) {
|
|
|
|
dma_addr_t addr = page_to_phys(pages[i]);
|
|
|
|
intel_private.driver->write_entry(addr,
|
|
|
|
j, flags);
|
|
|
|
}
|
2015-01-26 17:47:10 +07:00
|
|
|
wmb();
|
2010-11-06 17:18:58 +07:00
|
|
|
}
|
2010-09-12 03:12:11 +07:00
|
|
|
|
2010-09-12 02:31:04 +07:00
|
|
|
static int intel_fake_agp_insert_entries(struct agp_memory *mem,
|
|
|
|
off_t pg_start, int type)
|
|
|
|
{
|
2010-04-14 05:29:52 +07:00
|
|
|
int ret = -EINVAL;
|
|
|
|
|
2011-01-21 17:54:32 +07:00
|
|
|
if (intel_private.clear_fake_agp) {
|
2013-01-25 05:45:00 +07:00
|
|
|
int start = intel_private.stolen_size / PAGE_SIZE;
|
|
|
|
int end = intel_private.gtt_mappable_entries;
|
2011-01-21 17:54:32 +07:00
|
|
|
intel_gtt_clear_range(start, end - start);
|
|
|
|
intel_private.clear_fake_agp = false;
|
|
|
|
}
|
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
if (INTEL_GTT_GEN == 1 && type == AGP_DCACHE_MEMORY)
|
|
|
|
return i810_insert_dcache_entries(mem, pg_start, type);
|
|
|
|
|
2010-04-14 05:29:52 +07:00
|
|
|
if (mem->page_count == 0)
|
|
|
|
goto out;
|
|
|
|
|
2013-01-25 05:45:00 +07:00
|
|
|
if (pg_start + mem->page_count > intel_private.gtt_total_entries)
|
2010-04-14 05:29:52 +07:00
|
|
|
goto out_err;
|
|
|
|
|
|
|
|
if (type != mem->type)
|
|
|
|
goto out_err;
|
|
|
|
|
2010-09-12 02:31:04 +07:00
|
|
|
if (!intel_private.driver->check_flags(type))
|
2010-04-14 05:29:52 +07:00
|
|
|
goto out_err;
|
|
|
|
|
|
|
|
if (!mem->is_flushed)
|
|
|
|
global_cache_flush();
|
|
|
|
|
2013-01-19 03:30:33 +07:00
|
|
|
if (intel_private.needs_dmar) {
|
2012-06-01 21:20:22 +07:00
|
|
|
struct sg_table st;
|
|
|
|
|
|
|
|
ret = intel_gtt_map_memory(mem->pages, mem->page_count, &st);
|
2010-09-12 03:12:11 +07:00
|
|
|
if (ret != 0)
|
|
|
|
return ret;
|
|
|
|
|
2012-06-01 21:20:22 +07:00
|
|
|
intel_gtt_insert_sg_entries(&st, pg_start, type);
|
|
|
|
mem->sg_list = st.sgl;
|
|
|
|
mem->num_sg = st.nents;
|
2010-11-06 17:18:58 +07:00
|
|
|
} else
|
|
|
|
intel_gtt_insert_pages(pg_start, mem->page_count, mem->pages,
|
|
|
|
type);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
out:
|
|
|
|
ret = 0;
|
|
|
|
out_err:
|
|
|
|
mem->is_flushed = true;
|
|
|
|
return ret;
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-04-14 05:29:52 +07:00
|
|
|
|
2010-11-06 17:18:58 +07:00
|
|
|
void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries)
|
|
|
|
{
|
|
|
|
unsigned int i;
|
|
|
|
|
|
|
|
for (i = first_entry; i < (first_entry + num_entries); i++) {
|
2013-01-19 03:30:32 +07:00
|
|
|
intel_private.driver->write_entry(intel_private.scratch_page_dma,
|
2010-11-06 17:18:58 +07:00
|
|
|
i, 0);
|
|
|
|
}
|
2015-01-26 17:47:10 +07:00
|
|
|
wmb();
|
2010-11-06 17:18:58 +07:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(intel_gtt_clear_range);
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-09-12 02:31:04 +07:00
|
|
|
static int intel_fake_agp_remove_entries(struct agp_memory *mem,
|
|
|
|
off_t pg_start, int type)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
if (mem->page_count == 0)
|
|
|
|
return 0;
|
|
|
|
|
2011-01-12 08:39:48 +07:00
|
|
|
intel_gtt_clear_range(pg_start, mem->page_count);
|
|
|
|
|
2013-01-19 03:30:33 +07:00
|
|
|
if (intel_private.needs_dmar) {
|
2010-11-06 17:18:58 +07:00
|
|
|
intel_gtt_unmap_memory(mem->sg_list, mem->num_sg);
|
|
|
|
mem->sg_list = NULL;
|
|
|
|
mem->num_sg = 0;
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
2010-11-06 17:18:58 +07:00
|
|
|
|
2010-04-14 05:29:52 +07:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2010-08-27 22:51:29 +07:00
|
|
|
static struct agp_memory *intel_fake_agp_alloc_by_type(size_t pg_count,
|
|
|
|
int type)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
2010-11-05 02:07:57 +07:00
|
|
|
struct agp_memory *new;
|
|
|
|
|
|
|
|
if (type == AGP_DCACHE_MEMORY && INTEL_GTT_GEN == 1) {
|
|
|
|
if (pg_count != intel_private.num_dcache_entries)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
new = agp_create_memory(1);
|
|
|
|
if (new == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
new->type = AGP_DCACHE_MEMORY;
|
|
|
|
new->page_count = pg_count;
|
|
|
|
new->num_scratch_pages = 0;
|
|
|
|
agp_free_page_array(new);
|
|
|
|
return new;
|
|
|
|
}
|
2010-04-14 05:29:52 +07:00
|
|
|
if (type == AGP_PHYS_MEMORY)
|
|
|
|
return alloc_agpphysmem_i8xx(pg_count, type);
|
|
|
|
/* always return NULL for other allocation types for now */
|
|
|
|
return NULL;
|
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
static int intel_alloc_chipset_flush_resource(void)
|
|
|
|
{
|
|
|
|
int ret;
|
2010-08-25 04:06:19 +07:00
|
|
|
ret = pci_bus_alloc_resource(intel_private.bridge_dev->bus, &intel_private.ifp_resource, PAGE_SIZE,
|
2010-04-14 05:29:52 +07:00
|
|
|
PAGE_SIZE, PCIBIOS_MIN_MEM, 0,
|
2010-08-25 04:06:19 +07:00
|
|
|
pcibios_align_resource, intel_private.bridge_dev);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void intel_i915_setup_chipset_flush(void)
|
|
|
|
{
|
|
|
|
int ret;
|
|
|
|
u32 temp;
|
|
|
|
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_read_config_dword(intel_private.bridge_dev, I915_IFPADDR, &temp);
|
2010-04-14 05:29:52 +07:00
|
|
|
if (!(temp & 0x1)) {
|
|
|
|
intel_alloc_chipset_flush_resource();
|
|
|
|
intel_private.resource_valid = 1;
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_write_config_dword(intel_private.bridge_dev, I915_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
|
2010-04-14 05:29:52 +07:00
|
|
|
} else {
|
|
|
|
temp &= ~1;
|
|
|
|
|
|
|
|
intel_private.resource_valid = 1;
|
|
|
|
intel_private.ifp_resource.start = temp;
|
|
|
|
intel_private.ifp_resource.end = temp + PAGE_SIZE;
|
|
|
|
ret = request_resource(&iomem_resource, &intel_private.ifp_resource);
|
|
|
|
/* some BIOSes reserve this area in a pnp some don't */
|
|
|
|
if (ret)
|
|
|
|
intel_private.resource_valid = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void intel_i965_g33_setup_chipset_flush(void)
|
|
|
|
{
|
|
|
|
u32 temp_hi, temp_lo;
|
|
|
|
int ret;
|
|
|
|
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_read_config_dword(intel_private.bridge_dev, I965_IFPADDR + 4, &temp_hi);
|
|
|
|
pci_read_config_dword(intel_private.bridge_dev, I965_IFPADDR, &temp_lo);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
|
|
|
if (!(temp_lo & 0x1)) {
|
|
|
|
|
|
|
|
intel_alloc_chipset_flush_resource();
|
|
|
|
|
|
|
|
intel_private.resource_valid = 1;
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR + 4,
|
2010-04-14 05:29:52 +07:00
|
|
|
upper_32_bits(intel_private.ifp_resource.start));
|
2010-08-25 04:06:19 +07:00
|
|
|
pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
|
2010-04-14 05:29:52 +07:00
|
|
|
} else {
|
|
|
|
u64 l64;
|
|
|
|
|
|
|
|
temp_lo &= ~0x1;
|
|
|
|
l64 = ((u64)temp_hi << 32) | temp_lo;
|
|
|
|
|
|
|
|
intel_private.resource_valid = 1;
|
|
|
|
intel_private.ifp_resource.start = l64;
|
|
|
|
intel_private.ifp_resource.end = l64 + PAGE_SIZE;
|
|
|
|
ret = request_resource(&iomem_resource, &intel_private.ifp_resource);
|
|
|
|
/* some BIOSes reserve this area in a pnp some don't */
|
|
|
|
if (ret)
|
|
|
|
intel_private.resource_valid = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static void intel_i9xx_setup_flush(void)
|
|
|
|
{
|
|
|
|
/* return if already configured */
|
|
|
|
if (intel_private.ifp_resource.start)
|
|
|
|
return;
|
|
|
|
|
2010-09-09 02:18:53 +07:00
|
|
|
if (INTEL_GTT_GEN == 6)
|
2010-04-14 05:29:52 +07:00
|
|
|
return;
|
|
|
|
|
|
|
|
/* setup a resource for this object */
|
|
|
|
intel_private.ifp_resource.name = "Intel Flush Page";
|
|
|
|
intel_private.ifp_resource.flags = IORESOURCE_MEM;
|
|
|
|
|
|
|
|
/* Setup chipset flush for 915 */
|
2010-09-09 02:18:53 +07:00
|
|
|
if (IS_G33 || INTEL_GTT_GEN >= 4) {
|
2010-04-14 05:29:52 +07:00
|
|
|
intel_i965_g33_setup_chipset_flush();
|
|
|
|
} else {
|
|
|
|
intel_i915_setup_chipset_flush();
|
|
|
|
}
|
|
|
|
|
2010-09-04 20:57:27 +07:00
|
|
|
if (intel_private.ifp_resource.start)
|
2010-04-14 05:29:52 +07:00
|
|
|
intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
|
2010-09-04 20:57:27 +07:00
|
|
|
if (!intel_private.i9xx_flush_page)
|
|
|
|
dev_err(&intel_private.pcidev->dev,
|
|
|
|
"can't ioremap flush page - no chipset flushing\n");
|
2010-04-14 05:29:52 +07:00
|
|
|
}
|
|
|
|
|
2010-09-12 22:11:15 +07:00
|
|
|
static void i9xx_cleanup(void)
|
|
|
|
{
|
|
|
|
if (intel_private.i9xx_flush_page)
|
|
|
|
iounmap(intel_private.i9xx_flush_page);
|
|
|
|
if (intel_private.resource_valid)
|
|
|
|
release_resource(&intel_private.ifp_resource);
|
|
|
|
intel_private.ifp_resource.start = 0;
|
|
|
|
intel_private.resource_valid = 0;
|
|
|
|
}
|
|
|
|
|
2010-09-12 05:27:24 +07:00
|
|
|
static void i9xx_chipset_flush(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
|
|
|
if (intel_private.i9xx_flush_page)
|
|
|
|
writel(1, intel_private.i9xx_flush_page);
|
|
|
|
}
|
|
|
|
|
2010-12-14 18:29:23 +07:00
|
|
|
static void i965_write_entry(dma_addr_t addr,
|
|
|
|
unsigned int entry,
|
2010-09-11 19:01:43 +07:00
|
|
|
unsigned int flags)
|
|
|
|
{
|
2010-12-14 18:29:23 +07:00
|
|
|
u32 pte_flags;
|
|
|
|
|
|
|
|
pte_flags = I810_PTE_VALID;
|
|
|
|
if (flags == AGP_USER_CACHED_MEMORY)
|
|
|
|
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
|
|
|
|
2010-09-11 19:01:43 +07:00
|
|
|
/* Shift high bits down */
|
|
|
|
addr |= (addr >> 28) & 0xf0;
|
2015-01-26 17:47:10 +07:00
|
|
|
writel_relaxed(addr | pte_flags, intel_private.gtt + entry);
|
2010-09-11 19:01:43 +07:00
|
|
|
}
|
|
|
|
|
2010-08-29 22:35:30 +07:00
|
|
|
static int i9xx_setup(void)
|
2010-04-14 05:29:52 +07:00
|
|
|
{
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
phys_addr_t reg_addr;
|
2012-03-29 03:39:33 +07:00
|
|
|
int size = KB(512);
|
2010-04-14 05:29:52 +07:00
|
|
|
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
reg_addr = pci_resource_start(intel_private.pcidev, I915_MMADR_BAR);
|
2010-05-18 18:24:51 +07:00
|
|
|
|
2012-03-29 03:39:33 +07:00
|
|
|
intel_private.registers = ioremap(reg_addr, size);
|
2010-09-09 02:20:12 +07:00
|
|
|
if (!intel_private.registers)
|
2010-04-14 05:29:52 +07:00
|
|
|
return -ENOMEM;
|
|
|
|
|
2012-11-05 00:21:29 +07:00
|
|
|
switch (INTEL_GTT_GEN) {
|
|
|
|
case 3:
|
2014-01-04 08:29:00 +07:00
|
|
|
intel_private.gtt_phys_addr =
|
agp/intel: Use CPU physical address, not bus address, for ioremap()
In i810_setup(), i830_setup(), and i9xx_setup(), we use the result of
pci_bus_address() as an argument to ioremap() and to compute gtt_phys_addr.
These should use pci_resource_start() instead because we want the CPU
physical address, not the bus address.
If there were an AGP device behind a host bridge that translated addresses,
e.g., a PNP0A08 device with _TRA != 0, this would fix a bug. I'm not aware
of any of those, but they are possible.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2014-01-07 04:43:13 +07:00
|
|
|
pci_resource_start(intel_private.pcidev, I915_PTE_BAR);
|
2012-11-05 00:21:29 +07:00
|
|
|
break;
|
|
|
|
case 5:
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt_phys_addr = reg_addr + MB(2);
|
2012-11-05 00:21:29 +07:00
|
|
|
break;
|
|
|
|
default:
|
2014-01-07 04:39:40 +07:00
|
|
|
intel_private.gtt_phys_addr = reg_addr + KB(512);
|
2012-11-05 00:21:29 +07:00
|
|
|
break;
|
2010-08-29 22:35:30 +07:00
|
|
|
}
|
|
|
|
|
|
|
|
intel_i9xx_setup_flush();
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2010-09-12 05:29:26 +07:00
|
|
|
static const struct agp_bridge_driver intel_fake_agp_driver = {
|
2010-04-14 05:29:52 +07:00
|
|
|
.owner = THIS_MODULE,
|
|
|
|
.size_type = FIXED_APER_SIZE,
|
2010-09-14 18:12:11 +07:00
|
|
|
.aperture_sizes = intel_fake_agp_sizes,
|
|
|
|
.num_aperture_sizes = ARRAY_SIZE(intel_fake_agp_sizes),
|
2010-09-11 19:01:43 +07:00
|
|
|
.configure = intel_fake_agp_configure,
|
2010-08-27 20:33:26 +07:00
|
|
|
.fetch_size = intel_fake_agp_fetch_size,
|
2010-08-29 05:15:03 +07:00
|
|
|
.cleanup = intel_gtt_cleanup,
|
2010-08-27 22:51:29 +07:00
|
|
|
.agp_enable = intel_fake_agp_enable,
|
2010-04-14 05:29:52 +07:00
|
|
|
.cache_flush = global_cache_flush,
|
2010-08-29 19:18:49 +07:00
|
|
|
.create_gatt_table = intel_fake_agp_create_gatt_table,
|
2010-08-27 22:51:29 +07:00
|
|
|
.free_gatt_table = intel_fake_agp_free_gatt_table,
|
2010-09-12 04:48:25 +07:00
|
|
|
.insert_memory = intel_fake_agp_insert_entries,
|
|
|
|
.remove_memory = intel_fake_agp_remove_entries,
|
2010-08-27 22:51:29 +07:00
|
|
|
.alloc_by_type = intel_fake_agp_alloc_by_type,
|
2010-04-14 05:29:52 +07:00
|
|
|
.free_by_type = intel_i810_free_by_type,
|
|
|
|
.agp_alloc_page = agp_generic_alloc_page,
|
|
|
|
.agp_alloc_pages = agp_generic_alloc_pages,
|
|
|
|
.agp_destroy_page = agp_generic_destroy_page,
|
|
|
|
.agp_destroy_pages = agp_generic_destroy_pages,
|
|
|
|
};
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-08-25 00:39:48 +07:00
|
|
|
|
2010-09-12 17:34:44 +07:00
|
|
|
static const struct intel_gtt_driver i81x_gtt_driver = {
|
|
|
|
.gen = 1,
|
2010-11-05 19:30:14 +07:00
|
|
|
.has_pgtbl_enable = 1,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 32,
|
2010-11-05 19:30:14 +07:00
|
|
|
.setup = i810_setup,
|
|
|
|
.cleanup = i810_cleanup,
|
2010-11-05 02:07:57 +07:00
|
|
|
.check_flags = i830_check_flags,
|
|
|
|
.write_entry = i810_write_entry,
|
2010-09-12 17:34:44 +07:00
|
|
|
};
|
2010-09-09 02:18:53 +07:00
|
|
|
static const struct intel_gtt_driver i8xx_gtt_driver = {
|
|
|
|
.gen = 2,
|
2010-10-31 17:37:02 +07:00
|
|
|
.has_pgtbl_enable = 1,
|
2010-08-29 22:29:50 +07:00
|
|
|
.setup = i830_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i830_cleanup,
|
2010-09-08 03:41:04 +07:00
|
|
|
.write_entry = i830_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 32,
|
2010-09-12 02:31:04 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i830_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver i915_gtt_driver = {
|
|
|
|
.gen = 3,
|
2010-10-31 17:37:02 +07:00
|
|
|
.has_pgtbl_enable = 1,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-08 03:41:04 +07:00
|
|
|
/* i945 is the last gpu to need phys mem (for overlay and cursors). */
|
2010-11-05 02:07:57 +07:00
|
|
|
.write_entry = i830_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 32,
|
2010-09-12 03:12:11 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver g33_gtt_driver = {
|
|
|
|
.gen = 3,
|
|
|
|
.is_g33 = 1,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-11 19:01:43 +07:00
|
|
|
.write_entry = i965_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 36,
|
2010-09-12 04:48:25 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver pineview_gtt_driver = {
|
|
|
|
.gen = 3,
|
|
|
|
.is_pineview = 1, .is_g33 = 1,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-11 19:01:43 +07:00
|
|
|
.write_entry = i965_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 36,
|
2010-09-12 04:48:25 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver i965_gtt_driver = {
|
|
|
|
.gen = 4,
|
2010-10-31 17:37:02 +07:00
|
|
|
.has_pgtbl_enable = 1,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-11 19:01:43 +07:00
|
|
|
.write_entry = i965_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 36,
|
2010-09-12 04:48:25 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver g4x_gtt_driver = {
|
|
|
|
.gen = 5,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-11 19:01:43 +07:00
|
|
|
.write_entry = i965_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 36,
|
2010-09-12 04:48:25 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
static const struct intel_gtt_driver ironlake_gtt_driver = {
|
|
|
|
.gen = 5,
|
|
|
|
.is_ironlake = 1,
|
2010-08-29 22:35:30 +07:00
|
|
|
.setup = i9xx_setup,
|
2010-09-12 22:11:15 +07:00
|
|
|
.cleanup = i9xx_cleanup,
|
2010-09-11 19:01:43 +07:00
|
|
|
.write_entry = i965_write_entry,
|
2010-09-12 21:38:55 +07:00
|
|
|
.dma_mask_size = 36,
|
2010-09-12 04:48:25 +07:00
|
|
|
.check_flags = i830_check_flags,
|
2010-09-12 05:27:24 +07:00
|
|
|
.chipset_flush = i9xx_chipset_flush,
|
2010-09-09 02:18:53 +07:00
|
|
|
};
|
|
|
|
|
2010-08-25 00:39:48 +07:00
|
|
|
/* Table to describe Intel GMCH and AGP/PCIE GART drivers. At least one of
|
|
|
|
* driver and gmch_driver must be non-null, and find_gmch will determine
|
|
|
|
* which one should be used if a gmch_chip_id is present.
|
|
|
|
*/
|
|
|
|
static const struct intel_gtt_driver_description {
|
|
|
|
unsigned int gmch_chip_id;
|
|
|
|
char *name;
|
2010-09-09 02:18:53 +07:00
|
|
|
const struct intel_gtt_driver *gtt_driver;
|
2010-08-25 00:39:48 +07:00
|
|
|
} intel_gtt_chipsets[] = {
|
2010-11-05 21:43:35 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82810_IG1, "i810",
|
2010-09-12 17:34:44 +07:00
|
|
|
&i81x_gtt_driver},
|
2010-11-05 21:43:35 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82810_IG3, "i810",
|
2010-09-12 17:34:44 +07:00
|
|
|
&i81x_gtt_driver},
|
2010-11-05 21:43:35 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82810E_IG, "i810",
|
2010-09-12 17:34:44 +07:00
|
|
|
&i81x_gtt_driver},
|
2010-11-05 21:43:35 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82815_CGC, "i815",
|
2010-09-12 17:34:44 +07:00
|
|
|
&i81x_gtt_driver},
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82830_CGC, "830M",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i8xx_gtt_driver},
|
2010-06-20 04:08:37 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82845G_IG, "845G",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i8xx_gtt_driver},
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82854_IG, "854",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i8xx_gtt_driver},
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82855GM_IG, "855GM",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i8xx_gtt_driver},
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82865_IG, "865",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i8xx_gtt_driver},
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_E7221_IG, "E7221 (i915)",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82915G_IG, "915G",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82915GM_IG, "915GM",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82945G_IG, "945G",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82945GM_IG, "945GM",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82945GME_IG, "945GME",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i915_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82946GZ_IG, "946GZ",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82G35_IG, "G35",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82965Q_IG, "965Q",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82965G_IG, "965G",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82965GM_IG, "965GM",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_82965GME_IG, "965GME/GLE",
|
2010-11-05 21:43:35 +07:00
|
|
|
&i965_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_G33_IG, "G33",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g33_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_Q35_IG, "Q35",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g33_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_Q33_IG, "Q33",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g33_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_PINEVIEW_M_IG, "GMA3150",
|
2010-11-05 21:43:35 +07:00
|
|
|
&pineview_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_PINEVIEW_IG, "GMA3150",
|
2010-11-05 21:43:35 +07:00
|
|
|
&pineview_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_GM45_IG, "GM45",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_EAGLELAKE_IG, "Eaglelake",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_Q45_IG, "Q45/Q43",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_G45_IG, "G45/G43",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_B43_IG, "B43",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-21 17:19:32 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_B43_1_IG, "B43",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-09-09 02:18:53 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_G41_IG, "G41",
|
2010-11-05 21:43:35 +07:00
|
|
|
&g4x_gtt_driver },
|
2010-08-25 00:39:48 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
|
2010-11-05 21:43:35 +07:00
|
|
|
"HD Graphics", &ironlake_gtt_driver },
|
2010-08-25 00:39:48 +07:00
|
|
|
{ PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG,
|
2010-11-05 21:43:35 +07:00
|
|
|
"HD Graphics", &ironlake_gtt_driver },
|
2010-08-25 00:39:48 +07:00
|
|
|
{ 0, NULL, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int find_gmch(u16 device)
|
|
|
|
{
|
|
|
|
struct pci_dev *gmch_device;
|
|
|
|
|
|
|
|
gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
|
|
|
|
if (gmch_device && PCI_FUNC(gmch_device->devfn) != 0) {
|
|
|
|
gmch_device = pci_get_device(PCI_VENDOR_ID_INTEL,
|
|
|
|
device, gmch_device);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!gmch_device)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
intel_private.pcidev = gmch_device;
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2012-06-08 20:55:40 +07:00
|
|
|
int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
|
|
|
|
struct agp_bridge_data *bridge)
|
2010-08-25 00:39:48 +07:00
|
|
|
{
|
|
|
|
int i, mask;
|
2012-06-08 20:55:40 +07:00
|
|
|
|
2010-08-25 00:39:48 +07:00
|
|
|
for (i = 0; intel_gtt_chipsets[i].name != NULL; i++) {
|
2012-06-08 20:55:40 +07:00
|
|
|
if (gpu_pdev) {
|
|
|
|
if (gpu_pdev->device ==
|
|
|
|
intel_gtt_chipsets[i].gmch_chip_id) {
|
|
|
|
intel_private.pcidev = pci_dev_get(gpu_pdev);
|
|
|
|
intel_private.driver =
|
|
|
|
intel_gtt_chipsets[i].gtt_driver;
|
|
|
|
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
} else if (find_gmch(intel_gtt_chipsets[i].gmch_chip_id)) {
|
2010-11-05 02:07:57 +07:00
|
|
|
intel_private.driver =
|
2010-09-09 02:18:53 +07:00
|
|
|
intel_gtt_chipsets[i].gtt_driver;
|
2010-08-25 00:39:48 +07:00
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2010-11-05 21:43:35 +07:00
|
|
|
if (!intel_private.driver)
|
2010-08-25 00:39:48 +07:00
|
|
|
return 0;
|
|
|
|
|
2013-11-05 19:00:08 +07:00
|
|
|
#if IS_ENABLED(CONFIG_AGP_INTEL)
|
2012-06-07 20:55:58 +07:00
|
|
|
if (bridge) {
|
2016-01-27 20:38:00 +07:00
|
|
|
if (INTEL_GTT_GEN > 1)
|
|
|
|
return 0;
|
|
|
|
|
2012-06-07 20:55:58 +07:00
|
|
|
bridge->driver = &intel_fake_agp_driver;
|
|
|
|
bridge->dev_private_data = &intel_private;
|
2012-06-08 20:55:40 +07:00
|
|
|
bridge->dev = bridge_pdev;
|
2012-06-07 20:55:58 +07:00
|
|
|
}
|
2013-11-05 19:00:08 +07:00
|
|
|
#endif
|
2010-08-25 00:39:48 +07:00
|
|
|
|
2016-01-27 20:38:00 +07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* Can be called from the fake agp driver but also directly from
|
|
|
|
* drm/i915.ko. Hence we need to check whether everything is set up
|
|
|
|
* already.
|
|
|
|
*/
|
|
|
|
if (intel_private.refcount++)
|
|
|
|
return 1;
|
|
|
|
|
2012-06-08 20:55:40 +07:00
|
|
|
intel_private.bridge_dev = pci_dev_get(bridge_pdev);
|
2010-08-25 04:06:19 +07:00
|
|
|
|
2012-06-08 20:55:40 +07:00
|
|
|
dev_info(&bridge_pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name);
|
2010-08-25 00:39:48 +07:00
|
|
|
|
2010-09-12 21:38:55 +07:00
|
|
|
mask = intel_private.driver->dma_mask_size;
|
2010-08-25 00:39:48 +07:00
|
|
|
if (pci_set_dma_mask(intel_private.pcidev, DMA_BIT_MASK(mask)))
|
|
|
|
dev_err(&intel_private.pcidev->dev,
|
|
|
|
"set gfx device dma mask %d-bit failed!\n", mask);
|
|
|
|
else
|
|
|
|
pci_set_consistent_dma_mask(intel_private.pcidev,
|
|
|
|
DMA_BIT_MASK(mask));
|
|
|
|
|
2012-06-08 20:55:40 +07:00
|
|
|
if (intel_gtt_init() != 0) {
|
|
|
|
intel_gmch_remove();
|
|
|
|
|
2010-08-29 19:18:49 +07:00
|
|
|
return 0;
|
2012-06-08 20:55:40 +07:00
|
|
|
}
|
2010-09-09 02:01:04 +07:00
|
|
|
|
2010-08-25 00:39:48 +07:00
|
|
|
return 1;
|
|
|
|
}
|
2010-09-08 22:29:51 +07:00
|
|
|
EXPORT_SYMBOL(intel_gmch_probe);
|
2010-08-25 00:39:48 +07:00
|
|
|
|
2015-06-25 22:35:05 +07:00
|
|
|
void intel_gtt_get(u64 *gtt_total, size_t *stolen_size,
|
|
|
|
phys_addr_t *mappable_base, u64 *mappable_end)
|
2010-09-07 01:08:44 +07:00
|
|
|
{
|
2013-01-25 05:45:00 +07:00
|
|
|
*gtt_total = intel_private.gtt_total_entries << PAGE_SHIFT;
|
|
|
|
*stolen_size = intel_private.stolen_size;
|
2013-02-09 02:32:47 +07:00
|
|
|
*mappable_base = intel_private.gma_bus_addr;
|
|
|
|
*mappable_end = intel_private.gtt_mappable_entries << PAGE_SHIFT;
|
2010-09-07 01:08:44 +07:00
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(intel_gtt_get);
|
|
|
|
|
2010-11-06 00:12:18 +07:00
|
|
|
void intel_gtt_chipset_flush(void)
|
|
|
|
{
|
|
|
|
if (intel_private.driver->chipset_flush)
|
|
|
|
intel_private.driver->chipset_flush();
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(intel_gtt_chipset_flush);
|
|
|
|
|
2012-06-08 20:55:40 +07:00
|
|
|
void intel_gmch_remove(void)
|
2010-08-25 00:39:48 +07:00
|
|
|
{
|
2012-06-08 20:55:40 +07:00
|
|
|
if (--intel_private.refcount)
|
|
|
|
return;
|
|
|
|
|
2016-01-27 20:37:58 +07:00
|
|
|
if (intel_private.scratch_page)
|
|
|
|
intel_gtt_teardown_scratch_page();
|
2010-08-25 00:39:48 +07:00
|
|
|
if (intel_private.pcidev)
|
|
|
|
pci_dev_put(intel_private.pcidev);
|
2010-08-25 04:06:19 +07:00
|
|
|
if (intel_private.bridge_dev)
|
|
|
|
pci_dev_put(intel_private.bridge_dev);
|
2012-06-08 20:55:40 +07:00
|
|
|
intel_private.driver = NULL;
|
2010-08-25 00:39:48 +07:00
|
|
|
}
|
2010-09-08 22:29:51 +07:00
|
|
|
EXPORT_SYMBOL(intel_gmch_remove);
|
|
|
|
|
2014-12-19 23:23:50 +07:00
|
|
|
MODULE_AUTHOR("Dave Jones, Various @Intel");
|
2010-09-08 22:29:51 +07:00
|
|
|
MODULE_LICENSE("GPL and additional rights");
|