mirror of
https://github.com/torvalds/linux.git
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37be944a02
* 'drm-core-next' of git://people.freedesktop.org/~airlied/linux: (290 commits) Revert "drm/ttm: add a way to bo_wait for either the last read or last write" Revert "drm/radeon/kms: add a new gem_wait ioctl with read/write flags" vmwgfx: Don't pass unused arguments to do_dirty functions vmwgfx: Emulate depth 32 framebuffers drm/radeon: Lower the severity of the radeon lockup messages. drm/i915/dp: Fix eDP on PCH DP on CPT/PPT drm/i915/dp: Introduce is_cpu_edp() drm/i915: use correct SPD type value drm/i915: fix ILK+ infoframe support drm/i915: add DP test request handling drm/i915: read full receiver capability field during DP hot plug drm/i915/dp: Remove eDP special cases from bandwidth checks drm/i915/dp: Fix the math in intel_dp_link_required drm/i915/panel: Always record the backlight level again (but cleverly) i915: Move i915_read/write out of line drm/i915: remove transcoder PLL mashing from mode_set per specs drm/i915: if transcoder disable fails, say which drm/i915: set watermarks for third pipe on IVB drm/i915: export a CPT mode set verification function drm/i915: fix transcoder PLL select masking ...
1548 lines
39 KiB
C
1548 lines
39 KiB
C
/*
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* Intel GTT (Graphics Translation Table) routines
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*
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* Caveat: This driver implements the linux agp interface, but this is far from
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* a agp driver! GTT support ended up here for purely historical reasons: The
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* old userspace intel graphics drivers needed an interface to map memory into
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* the GTT. And the drm provides a default interface for graphic devices sitting
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* on an agp port. So it made sense to fake the GTT support as an agp port to
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* avoid having to create a new api.
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*
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* With gem this does not make much sense anymore, just needlessly complicates
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* the code. But as long as the old graphics stack is still support, it's stuck
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* here.
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*
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* /fairy-tale-mode off
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*/
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#include <linux/module.h>
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#include <linux/pci.h>
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/pagemap.h>
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#include <linux/agp_backend.h>
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#include <linux/delay.h>
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#include <asm/smp.h>
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#include "agp.h"
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#include "intel-agp.h"
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#include <drm/intel-gtt.h>
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/*
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* If we have Intel graphics, we're not going to have anything other than
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* an Intel IOMMU. So make the correct use of the PCI DMA API contingent
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* on the Intel IOMMU support (CONFIG_INTEL_IOMMU).
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* Only newer chipsets need to bother with this, of course.
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*/
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#ifdef CONFIG_INTEL_IOMMU
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#define USE_PCI_DMA_API 1
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#else
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#define USE_PCI_DMA_API 0
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#endif
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struct intel_gtt_driver {
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unsigned int gen : 8;
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unsigned int is_g33 : 1;
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unsigned int is_pineview : 1;
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unsigned int is_ironlake : 1;
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unsigned int has_pgtbl_enable : 1;
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unsigned int dma_mask_size : 8;
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/* Chipset specific GTT setup */
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int (*setup)(void);
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/* This should undo anything done in ->setup() save the unmapping
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* of the mmio register file, that's done in the generic code. */
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void (*cleanup)(void);
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void (*write_entry)(dma_addr_t addr, unsigned int entry, unsigned int flags);
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/* Flags is a more or less chipset specific opaque value.
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* For chipsets that need to support old ums (non-gem) code, this
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* needs to be identical to the various supported agp memory types! */
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bool (*check_flags)(unsigned int flags);
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void (*chipset_flush)(void);
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};
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static struct _intel_private {
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struct intel_gtt base;
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const struct intel_gtt_driver *driver;
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struct pci_dev *pcidev; /* device one */
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struct pci_dev *bridge_dev;
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u8 __iomem *registers;
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phys_addr_t gtt_bus_addr;
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phys_addr_t gma_bus_addr;
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u32 PGETBL_save;
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u32 __iomem *gtt; /* I915G */
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bool clear_fake_agp; /* on first access via agp, fill with scratch */
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int num_dcache_entries;
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void __iomem *i9xx_flush_page;
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char *i81x_gtt_table;
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struct resource ifp_resource;
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int resource_valid;
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struct page *scratch_page;
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dma_addr_t scratch_page_dma;
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} intel_private;
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#define INTEL_GTT_GEN intel_private.driver->gen
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#define IS_G33 intel_private.driver->is_g33
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#define IS_PINEVIEW intel_private.driver->is_pineview
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#define IS_IRONLAKE intel_private.driver->is_ironlake
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#define HAS_PGTBL_EN intel_private.driver->has_pgtbl_enable
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int intel_gtt_map_memory(struct page **pages, unsigned int num_entries,
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struct scatterlist **sg_list, int *num_sg)
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{
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struct sg_table st;
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struct scatterlist *sg;
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int i;
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if (*sg_list)
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return 0; /* already mapped (for e.g. resume */
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DBG("try mapping %lu pages\n", (unsigned long)num_entries);
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if (sg_alloc_table(&st, num_entries, GFP_KERNEL))
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goto err;
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*sg_list = sg = st.sgl;
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for (i = 0 ; i < num_entries; i++, sg = sg_next(sg))
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sg_set_page(sg, pages[i], PAGE_SIZE, 0);
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*num_sg = pci_map_sg(intel_private.pcidev, *sg_list,
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num_entries, PCI_DMA_BIDIRECTIONAL);
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if (unlikely(!*num_sg))
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goto err;
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return 0;
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err:
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sg_free_table(&st);
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return -ENOMEM;
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}
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EXPORT_SYMBOL(intel_gtt_map_memory);
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void intel_gtt_unmap_memory(struct scatterlist *sg_list, int num_sg)
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{
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struct sg_table st;
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DBG("try unmapping %lu pages\n", (unsigned long)mem->page_count);
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pci_unmap_sg(intel_private.pcidev, sg_list,
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num_sg, PCI_DMA_BIDIRECTIONAL);
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st.sgl = sg_list;
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st.orig_nents = st.nents = num_sg;
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sg_free_table(&st);
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}
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EXPORT_SYMBOL(intel_gtt_unmap_memory);
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static void intel_fake_agp_enable(struct agp_bridge_data *bridge, u32 mode)
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{
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return;
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}
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/* Exists to support ARGB cursors */
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static struct page *i8xx_alloc_pages(void)
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{
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struct page *page;
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page = alloc_pages(GFP_KERNEL | GFP_DMA32, 2);
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if (page == NULL)
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return NULL;
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if (set_pages_uc(page, 4) < 0) {
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set_pages_wb(page, 4);
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__free_pages(page, 2);
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return NULL;
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}
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get_page(page);
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atomic_inc(&agp_bridge->current_memory_agp);
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return page;
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}
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static void i8xx_destroy_pages(struct page *page)
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{
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if (page == NULL)
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return;
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set_pages_wb(page, 4);
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put_page(page);
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__free_pages(page, 2);
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atomic_dec(&agp_bridge->current_memory_agp);
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}
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#define I810_GTT_ORDER 4
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static int i810_setup(void)
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{
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u32 reg_addr;
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char *gtt_table;
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/* i81x does not preallocate the gtt. It's always 64kb in size. */
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gtt_table = alloc_gatt_pages(I810_GTT_ORDER);
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if (gtt_table == NULL)
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return -ENOMEM;
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intel_private.i81x_gtt_table = gtt_table;
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pci_read_config_dword(intel_private.pcidev, I810_MMADDR, ®_addr);
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reg_addr &= 0xfff80000;
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intel_private.registers = ioremap(reg_addr, KB(64));
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if (!intel_private.registers)
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return -ENOMEM;
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writel(virt_to_phys(gtt_table) | I810_PGETBL_ENABLED,
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intel_private.registers+I810_PGETBL_CTL);
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intel_private.gtt_bus_addr = reg_addr + I810_PTE_BASE;
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if ((readl(intel_private.registers+I810_DRAM_CTL)
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& I810_DRAM_ROW_0) == I810_DRAM_ROW_0_SDRAM) {
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dev_info(&intel_private.pcidev->dev,
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"detected 4MB dedicated video ram\n");
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intel_private.num_dcache_entries = 1024;
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}
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return 0;
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}
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static void i810_cleanup(void)
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{
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writel(0, intel_private.registers+I810_PGETBL_CTL);
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free_gatt_pages(intel_private.i81x_gtt_table, I810_GTT_ORDER);
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}
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static int i810_insert_dcache_entries(struct agp_memory *mem, off_t pg_start,
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int type)
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{
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int i;
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if ((pg_start + mem->page_count)
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> intel_private.num_dcache_entries)
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return -EINVAL;
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if (!mem->is_flushed)
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global_cache_flush();
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for (i = pg_start; i < (pg_start + mem->page_count); i++) {
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dma_addr_t addr = i << PAGE_SHIFT;
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intel_private.driver->write_entry(addr,
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i, type);
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}
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readl(intel_private.gtt+i-1);
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return 0;
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}
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/*
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* The i810/i830 requires a physical address to program its mouse
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* pointer into hardware.
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* However the Xserver still writes to it through the agp aperture.
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*/
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static struct agp_memory *alloc_agpphysmem_i8xx(size_t pg_count, int type)
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{
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struct agp_memory *new;
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struct page *page;
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switch (pg_count) {
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case 1: page = agp_bridge->driver->agp_alloc_page(agp_bridge);
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break;
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case 4:
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/* kludge to get 4 physical pages for ARGB cursor */
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page = i8xx_alloc_pages();
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break;
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default:
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return NULL;
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}
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if (page == NULL)
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return NULL;
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new = agp_create_memory(pg_count);
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if (new == NULL)
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return NULL;
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new->pages[0] = page;
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if (pg_count == 4) {
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/* kludge to get 4 physical pages for ARGB cursor */
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new->pages[1] = new->pages[0] + 1;
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new->pages[2] = new->pages[1] + 1;
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new->pages[3] = new->pages[2] + 1;
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}
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new->page_count = pg_count;
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new->num_scratch_pages = pg_count;
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new->type = AGP_PHYS_MEMORY;
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new->physical = page_to_phys(new->pages[0]);
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return new;
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}
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static void intel_i810_free_by_type(struct agp_memory *curr)
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{
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agp_free_key(curr->key);
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if (curr->type == AGP_PHYS_MEMORY) {
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if (curr->page_count == 4)
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i8xx_destroy_pages(curr->pages[0]);
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else {
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agp_bridge->driver->agp_destroy_page(curr->pages[0],
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AGP_PAGE_DESTROY_UNMAP);
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agp_bridge->driver->agp_destroy_page(curr->pages[0],
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AGP_PAGE_DESTROY_FREE);
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}
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agp_free_page_array(curr);
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}
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kfree(curr);
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}
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static int intel_gtt_setup_scratch_page(void)
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{
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struct page *page;
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dma_addr_t dma_addr;
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page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
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if (page == NULL)
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return -ENOMEM;
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get_page(page);
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set_pages_uc(page, 1);
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if (intel_private.base.needs_dmar) {
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dma_addr = pci_map_page(intel_private.pcidev, page, 0,
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PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
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if (pci_dma_mapping_error(intel_private.pcidev, dma_addr))
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return -EINVAL;
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intel_private.scratch_page_dma = dma_addr;
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} else
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intel_private.scratch_page_dma = page_to_phys(page);
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intel_private.scratch_page = page;
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return 0;
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}
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static void i810_write_entry(dma_addr_t addr, unsigned int entry,
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unsigned int flags)
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{
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u32 pte_flags = I810_PTE_VALID;
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switch (flags) {
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case AGP_DCACHE_MEMORY:
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pte_flags |= I810_PTE_LOCAL;
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break;
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case AGP_USER_CACHED_MEMORY:
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pte_flags |= I830_PTE_SYSTEM_CACHED;
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break;
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}
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writel(addr | pte_flags, intel_private.gtt + entry);
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}
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static const struct aper_size_info_fixed intel_fake_agp_sizes[] = {
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{32, 8192, 3},
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{64, 16384, 4},
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{128, 32768, 5},
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{256, 65536, 6},
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{512, 131072, 7},
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};
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static unsigned int intel_gtt_stolen_size(void)
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{
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u16 gmch_ctrl;
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u8 rdct;
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int local = 0;
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static const int ddt[4] = { 0, 16, 32, 64 };
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unsigned int stolen_size = 0;
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if (INTEL_GTT_GEN == 1)
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return 0; /* no stolen mem on i81x */
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pci_read_config_word(intel_private.bridge_dev,
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I830_GMCH_CTRL, &gmch_ctrl);
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if (intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82830_HB ||
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intel_private.bridge_dev->device == PCI_DEVICE_ID_INTEL_82845G_HB) {
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switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
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case I830_GMCH_GMS_STOLEN_512:
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stolen_size = KB(512);
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break;
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case I830_GMCH_GMS_STOLEN_1024:
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stolen_size = MB(1);
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break;
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case I830_GMCH_GMS_STOLEN_8192:
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stolen_size = MB(8);
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break;
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case I830_GMCH_GMS_LOCAL:
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rdct = readb(intel_private.registers+I830_RDRAM_CHANNEL_TYPE);
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stolen_size = (I830_RDRAM_ND(rdct) + 1) *
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MB(ddt[I830_RDRAM_DDT(rdct)]);
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local = 1;
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break;
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default:
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stolen_size = 0;
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break;
|
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}
|
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} else if (INTEL_GTT_GEN == 6) {
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/*
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* SandyBridge has new memory control reg at 0x50.w
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*/
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u16 snb_gmch_ctl;
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pci_read_config_word(intel_private.pcidev, SNB_GMCH_CTRL, &snb_gmch_ctl);
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switch (snb_gmch_ctl & SNB_GMCH_GMS_STOLEN_MASK) {
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case SNB_GMCH_GMS_STOLEN_32M:
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stolen_size = MB(32);
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break;
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case SNB_GMCH_GMS_STOLEN_64M:
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stolen_size = MB(64);
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break;
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case SNB_GMCH_GMS_STOLEN_96M:
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stolen_size = MB(96);
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break;
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case SNB_GMCH_GMS_STOLEN_128M:
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stolen_size = MB(128);
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break;
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case SNB_GMCH_GMS_STOLEN_160M:
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stolen_size = MB(160);
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break;
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case SNB_GMCH_GMS_STOLEN_192M:
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stolen_size = MB(192);
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break;
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|
case SNB_GMCH_GMS_STOLEN_224M:
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stolen_size = MB(224);
|
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break;
|
|
case SNB_GMCH_GMS_STOLEN_256M:
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stolen_size = MB(256);
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|
break;
|
|
case SNB_GMCH_GMS_STOLEN_288M:
|
|
stolen_size = MB(288);
|
|
break;
|
|
case SNB_GMCH_GMS_STOLEN_320M:
|
|
stolen_size = MB(320);
|
|
break;
|
|
case SNB_GMCH_GMS_STOLEN_352M:
|
|
stolen_size = MB(352);
|
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break;
|
|
case SNB_GMCH_GMS_STOLEN_384M:
|
|
stolen_size = MB(384);
|
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break;
|
|
case SNB_GMCH_GMS_STOLEN_416M:
|
|
stolen_size = MB(416);
|
|
break;
|
|
case SNB_GMCH_GMS_STOLEN_448M:
|
|
stolen_size = MB(448);
|
|
break;
|
|
case SNB_GMCH_GMS_STOLEN_480M:
|
|
stolen_size = MB(480);
|
|
break;
|
|
case SNB_GMCH_GMS_STOLEN_512M:
|
|
stolen_size = MB(512);
|
|
break;
|
|
}
|
|
} else {
|
|
switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
|
|
case I855_GMCH_GMS_STOLEN_1M:
|
|
stolen_size = MB(1);
|
|
break;
|
|
case I855_GMCH_GMS_STOLEN_4M:
|
|
stolen_size = MB(4);
|
|
break;
|
|
case I855_GMCH_GMS_STOLEN_8M:
|
|
stolen_size = MB(8);
|
|
break;
|
|
case I855_GMCH_GMS_STOLEN_16M:
|
|
stolen_size = MB(16);
|
|
break;
|
|
case I855_GMCH_GMS_STOLEN_32M:
|
|
stolen_size = MB(32);
|
|
break;
|
|
case I915_GMCH_GMS_STOLEN_48M:
|
|
stolen_size = MB(48);
|
|
break;
|
|
case I915_GMCH_GMS_STOLEN_64M:
|
|
stolen_size = MB(64);
|
|
break;
|
|
case G33_GMCH_GMS_STOLEN_128M:
|
|
stolen_size = MB(128);
|
|
break;
|
|
case G33_GMCH_GMS_STOLEN_256M:
|
|
stolen_size = MB(256);
|
|
break;
|
|
case INTEL_GMCH_GMS_STOLEN_96M:
|
|
stolen_size = MB(96);
|
|
break;
|
|
case INTEL_GMCH_GMS_STOLEN_160M:
|
|
stolen_size = MB(160);
|
|
break;
|
|
case INTEL_GMCH_GMS_STOLEN_224M:
|
|
stolen_size = MB(224);
|
|
break;
|
|
case INTEL_GMCH_GMS_STOLEN_352M:
|
|
stolen_size = MB(352);
|
|
break;
|
|
default:
|
|
stolen_size = 0;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (stolen_size > 0) {
|
|
dev_info(&intel_private.bridge_dev->dev, "detected %dK %s memory\n",
|
|
stolen_size / KB(1), local ? "local" : "stolen");
|
|
} else {
|
|
dev_info(&intel_private.bridge_dev->dev,
|
|
"no pre-allocated video memory detected\n");
|
|
stolen_size = 0;
|
|
}
|
|
|
|
return stolen_size;
|
|
}
|
|
|
|
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)
|
|
{
|
|
int size;
|
|
u32 pgetbl_ctl;
|
|
u16 gmch_ctl;
|
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
I830_GMCH_CTRL, &gmch_ctl);
|
|
|
|
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);
|
|
break;
|
|
case G4x_GMCH_SIZE_VT_1_5M:
|
|
i965_adjust_pgetbl_size(I965_PGETBL_SIZE_1_5MB);
|
|
break;
|
|
case G4x_GMCH_SIZE_2M:
|
|
case G4x_GMCH_SIZE_VT_2M:
|
|
i965_adjust_pgetbl_size(I965_PGETBL_SIZE_2MB);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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)
|
|
{
|
|
int size;
|
|
|
|
if (IS_G33 || INTEL_GTT_GEN == 4 || INTEL_GTT_GEN == 5)
|
|
return i965_gtt_total_entries();
|
|
else if (INTEL_GTT_GEN == 6) {
|
|
u16 snb_gmch_ctl;
|
|
|
|
pci_read_config_word(intel_private.pcidev, SNB_GMCH_CTRL, &snb_gmch_ctl);
|
|
switch (snb_gmch_ctl & SNB_GTT_SIZE_MASK) {
|
|
default:
|
|
case SNB_GTT_SIZE_0M:
|
|
printk(KERN_ERR "Bad GTT size mask: 0x%04x.\n", snb_gmch_ctl);
|
|
size = MB(0);
|
|
break;
|
|
case SNB_GTT_SIZE_1M:
|
|
size = MB(1);
|
|
break;
|
|
case SNB_GTT_SIZE_2M:
|
|
size = MB(2);
|
|
break;
|
|
}
|
|
return size/4;
|
|
} else {
|
|
/* On previous hardware, the GTT size was just what was
|
|
* required to map the aperture.
|
|
*/
|
|
return intel_private.base.gtt_mappable_entries;
|
|
}
|
|
}
|
|
|
|
static unsigned int intel_gtt_mappable_entries(void)
|
|
{
|
|
unsigned int aperture_size;
|
|
|
|
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) {
|
|
u16 gmch_ctrl;
|
|
|
|
pci_read_config_word(intel_private.bridge_dev,
|
|
I830_GMCH_CTRL, &gmch_ctrl);
|
|
|
|
if ((gmch_ctrl & I830_GMCH_MEM_MASK) == I830_GMCH_MEM_64M)
|
|
aperture_size = MB(64);
|
|
else
|
|
aperture_size = MB(128);
|
|
} else {
|
|
/* 9xx supports large sizes, just look at the length */
|
|
aperture_size = pci_resource_len(intel_private.pcidev, 2);
|
|
}
|
|
|
|
return aperture_size >> PAGE_SHIFT;
|
|
}
|
|
|
|
static void intel_gtt_teardown_scratch_page(void)
|
|
{
|
|
set_pages_wb(intel_private.scratch_page, 1);
|
|
pci_unmap_page(intel_private.pcidev, intel_private.scratch_page_dma,
|
|
PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
|
|
put_page(intel_private.scratch_page);
|
|
__free_page(intel_private.scratch_page);
|
|
}
|
|
|
|
static void intel_gtt_cleanup(void)
|
|
{
|
|
intel_private.driver->cleanup();
|
|
|
|
iounmap(intel_private.gtt);
|
|
iounmap(intel_private.registers);
|
|
|
|
intel_gtt_teardown_scratch_page();
|
|
}
|
|
|
|
static int intel_gtt_init(void)
|
|
{
|
|
u32 gtt_map_size;
|
|
int ret;
|
|
|
|
ret = intel_private.driver->setup();
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
intel_private.base.gtt_mappable_entries = intel_gtt_mappable_entries();
|
|
intel_private.base.gtt_total_entries = intel_gtt_total_entries();
|
|
|
|
/* save the PGETBL reg for resume */
|
|
intel_private.PGETBL_save =
|
|
readl(intel_private.registers+I810_PGETBL_CTL)
|
|
& ~I810_PGETBL_ENABLED;
|
|
/* we only ever restore the register when enabling the PGTBL... */
|
|
if (HAS_PGTBL_EN)
|
|
intel_private.PGETBL_save |= I810_PGETBL_ENABLED;
|
|
|
|
dev_info(&intel_private.bridge_dev->dev,
|
|
"detected gtt size: %dK total, %dK mappable\n",
|
|
intel_private.base.gtt_total_entries * 4,
|
|
intel_private.base.gtt_mappable_entries * 4);
|
|
|
|
gtt_map_size = intel_private.base.gtt_total_entries * 4;
|
|
|
|
intel_private.gtt = ioremap(intel_private.gtt_bus_addr,
|
|
gtt_map_size);
|
|
if (!intel_private.gtt) {
|
|
intel_private.driver->cleanup();
|
|
iounmap(intel_private.registers);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
global_cache_flush(); /* FIXME: ? */
|
|
|
|
intel_private.base.stolen_size = intel_gtt_stolen_size();
|
|
|
|
intel_private.base.needs_dmar = USE_PCI_DMA_API && INTEL_GTT_GEN > 2;
|
|
|
|
ret = intel_gtt_setup_scratch_page();
|
|
if (ret != 0) {
|
|
intel_gtt_cleanup();
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int intel_fake_agp_fetch_size(void)
|
|
{
|
|
int num_sizes = ARRAY_SIZE(intel_fake_agp_sizes);
|
|
unsigned int aper_size;
|
|
int i;
|
|
|
|
aper_size = (intel_private.base.gtt_mappable_entries << PAGE_SHIFT)
|
|
/ MB(1);
|
|
|
|
for (i = 0; i < num_sizes; i++) {
|
|
if (aper_size == intel_fake_agp_sizes[i].size) {
|
|
agp_bridge->current_size =
|
|
(void *) (intel_fake_agp_sizes + i);
|
|
return aper_size;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void i830_cleanup(void)
|
|
{
|
|
}
|
|
|
|
/* 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.
|
|
*/
|
|
static void i830_chipset_flush(void)
|
|
{
|
|
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);
|
|
|
|
while (readl(intel_private.registers+I830_HIC) & (1<<31)) {
|
|
if (time_after(jiffies, timeout))
|
|
break;
|
|
|
|
udelay(50);
|
|
}
|
|
}
|
|
|
|
static void i830_write_entry(dma_addr_t addr, unsigned int entry,
|
|
unsigned int flags)
|
|
{
|
|
u32 pte_flags = I810_PTE_VALID;
|
|
|
|
if (flags == AGP_USER_CACHED_MEMORY)
|
|
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
|
|
|
writel(addr | pte_flags, intel_private.gtt + entry);
|
|
}
|
|
|
|
static bool intel_enable_gtt(void)
|
|
{
|
|
u32 gma_addr;
|
|
u8 __iomem *reg;
|
|
|
|
if (INTEL_GTT_GEN <= 2)
|
|
pci_read_config_dword(intel_private.pcidev, I810_GMADDR,
|
|
&gma_addr);
|
|
else
|
|
pci_read_config_dword(intel_private.pcidev, I915_GMADDR,
|
|
&gma_addr);
|
|
|
|
intel_private.gma_bus_addr = (gma_addr & PCI_BASE_ADDRESS_MEM_MASK);
|
|
|
|
if (INTEL_GTT_GEN >= 6)
|
|
return true;
|
|
|
|
if (INTEL_GTT_GEN == 2) {
|
|
u16 gmch_ctrl;
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
/* 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);
|
|
|
|
reg = intel_private.registers+I810_PGETBL_CTL;
|
|
writel(intel_private.PGETBL_save, reg);
|
|
if (HAS_PGTBL_EN && (readl(reg) & I810_PGETBL_ENABLED) == 0) {
|
|
dev_err(&intel_private.pcidev->dev,
|
|
"failed to enable the GTT: PGETBL=%x [expected %x]\n",
|
|
readl(reg), intel_private.PGETBL_save);
|
|
return false;
|
|
}
|
|
|
|
if (INTEL_GTT_GEN >= 3)
|
|
writel(0, intel_private.registers+GFX_FLSH_CNTL);
|
|
|
|
return true;
|
|
}
|
|
|
|
static int i830_setup(void)
|
|
{
|
|
u32 reg_addr;
|
|
|
|
pci_read_config_dword(intel_private.pcidev, I810_MMADDR, ®_addr);
|
|
reg_addr &= 0xfff80000;
|
|
|
|
intel_private.registers = ioremap(reg_addr, KB(64));
|
|
if (!intel_private.registers)
|
|
return -ENOMEM;
|
|
|
|
intel_private.gtt_bus_addr = reg_addr + I810_PTE_BASE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int intel_fake_agp_create_gatt_table(struct agp_bridge_data *bridge)
|
|
{
|
|
agp_bridge->gatt_table_real = NULL;
|
|
agp_bridge->gatt_table = NULL;
|
|
agp_bridge->gatt_bus_addr = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int intel_fake_agp_free_gatt_table(struct agp_bridge_data *bridge)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int intel_fake_agp_configure(void)
|
|
{
|
|
if (!intel_enable_gtt())
|
|
return -EIO;
|
|
|
|
intel_private.clear_fake_agp = true;
|
|
agp_bridge->gart_bus_addr = intel_private.gma_bus_addr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static bool i830_check_flags(unsigned int flags)
|
|
{
|
|
switch (flags) {
|
|
case 0:
|
|
case AGP_PHYS_MEMORY:
|
|
case AGP_USER_CACHED_MEMORY:
|
|
case AGP_USER_MEMORY:
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void intel_gtt_insert_sg_entries(struct scatterlist *sg_list,
|
|
unsigned int sg_len,
|
|
unsigned int pg_start,
|
|
unsigned int flags)
|
|
{
|
|
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 */
|
|
for_each_sg(sg_list, sg, sg_len, i) {
|
|
len = sg_dma_len(sg) >> PAGE_SHIFT;
|
|
for (m = 0; m < len; m++) {
|
|
dma_addr_t addr = sg_dma_address(sg) + (m << PAGE_SHIFT);
|
|
intel_private.driver->write_entry(addr,
|
|
j, flags);
|
|
j++;
|
|
}
|
|
}
|
|
readl(intel_private.gtt+j-1);
|
|
}
|
|
EXPORT_SYMBOL(intel_gtt_insert_sg_entries);
|
|
|
|
void intel_gtt_insert_pages(unsigned int first_entry, unsigned int num_entries,
|
|
struct page **pages, unsigned int flags)
|
|
{
|
|
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);
|
|
}
|
|
readl(intel_private.gtt+j-1);
|
|
}
|
|
EXPORT_SYMBOL(intel_gtt_insert_pages);
|
|
|
|
static int intel_fake_agp_insert_entries(struct agp_memory *mem,
|
|
off_t pg_start, int type)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
if (intel_private.base.do_idle_maps)
|
|
return -ENODEV;
|
|
|
|
if (intel_private.clear_fake_agp) {
|
|
int start = intel_private.base.stolen_size / PAGE_SIZE;
|
|
int end = intel_private.base.gtt_mappable_entries;
|
|
intel_gtt_clear_range(start, end - start);
|
|
intel_private.clear_fake_agp = false;
|
|
}
|
|
|
|
if (INTEL_GTT_GEN == 1 && type == AGP_DCACHE_MEMORY)
|
|
return i810_insert_dcache_entries(mem, pg_start, type);
|
|
|
|
if (mem->page_count == 0)
|
|
goto out;
|
|
|
|
if (pg_start + mem->page_count > intel_private.base.gtt_total_entries)
|
|
goto out_err;
|
|
|
|
if (type != mem->type)
|
|
goto out_err;
|
|
|
|
if (!intel_private.driver->check_flags(type))
|
|
goto out_err;
|
|
|
|
if (!mem->is_flushed)
|
|
global_cache_flush();
|
|
|
|
if (intel_private.base.needs_dmar) {
|
|
ret = intel_gtt_map_memory(mem->pages, mem->page_count,
|
|
&mem->sg_list, &mem->num_sg);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
intel_gtt_insert_sg_entries(mem->sg_list, mem->num_sg,
|
|
pg_start, type);
|
|
} else
|
|
intel_gtt_insert_pages(pg_start, mem->page_count, mem->pages,
|
|
type);
|
|
|
|
out:
|
|
ret = 0;
|
|
out_err:
|
|
mem->is_flushed = true;
|
|
return ret;
|
|
}
|
|
|
|
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++) {
|
|
intel_private.driver->write_entry(intel_private.scratch_page_dma,
|
|
i, 0);
|
|
}
|
|
readl(intel_private.gtt+i-1);
|
|
}
|
|
EXPORT_SYMBOL(intel_gtt_clear_range);
|
|
|
|
static int intel_fake_agp_remove_entries(struct agp_memory *mem,
|
|
off_t pg_start, int type)
|
|
{
|
|
if (mem->page_count == 0)
|
|
return 0;
|
|
|
|
if (intel_private.base.do_idle_maps)
|
|
return -ENODEV;
|
|
|
|
intel_gtt_clear_range(pg_start, mem->page_count);
|
|
|
|
if (intel_private.base.needs_dmar) {
|
|
intel_gtt_unmap_memory(mem->sg_list, mem->num_sg);
|
|
mem->sg_list = NULL;
|
|
mem->num_sg = 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct agp_memory *intel_fake_agp_alloc_by_type(size_t pg_count,
|
|
int type)
|
|
{
|
|
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;
|
|
}
|
|
if (type == AGP_PHYS_MEMORY)
|
|
return alloc_agpphysmem_i8xx(pg_count, type);
|
|
/* always return NULL for other allocation types for now */
|
|
return NULL;
|
|
}
|
|
|
|
static int intel_alloc_chipset_flush_resource(void)
|
|
{
|
|
int ret;
|
|
ret = pci_bus_alloc_resource(intel_private.bridge_dev->bus, &intel_private.ifp_resource, PAGE_SIZE,
|
|
PAGE_SIZE, PCIBIOS_MIN_MEM, 0,
|
|
pcibios_align_resource, intel_private.bridge_dev);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void intel_i915_setup_chipset_flush(void)
|
|
{
|
|
int ret;
|
|
u32 temp;
|
|
|
|
pci_read_config_dword(intel_private.bridge_dev, I915_IFPADDR, &temp);
|
|
if (!(temp & 0x1)) {
|
|
intel_alloc_chipset_flush_resource();
|
|
intel_private.resource_valid = 1;
|
|
pci_write_config_dword(intel_private.bridge_dev, I915_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
|
|
} 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;
|
|
|
|
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);
|
|
|
|
if (!(temp_lo & 0x1)) {
|
|
|
|
intel_alloc_chipset_flush_resource();
|
|
|
|
intel_private.resource_valid = 1;
|
|
pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR + 4,
|
|
upper_32_bits(intel_private.ifp_resource.start));
|
|
pci_write_config_dword(intel_private.bridge_dev, I965_IFPADDR, (intel_private.ifp_resource.start & 0xffffffff) | 0x1);
|
|
} 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;
|
|
|
|
if (INTEL_GTT_GEN == 6)
|
|
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 */
|
|
if (IS_G33 || INTEL_GTT_GEN >= 4) {
|
|
intel_i965_g33_setup_chipset_flush();
|
|
} else {
|
|
intel_i915_setup_chipset_flush();
|
|
}
|
|
|
|
if (intel_private.ifp_resource.start)
|
|
intel_private.i9xx_flush_page = ioremap_nocache(intel_private.ifp_resource.start, PAGE_SIZE);
|
|
if (!intel_private.i9xx_flush_page)
|
|
dev_err(&intel_private.pcidev->dev,
|
|
"can't ioremap flush page - no chipset flushing\n");
|
|
}
|
|
|
|
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;
|
|
}
|
|
|
|
static void i9xx_chipset_flush(void)
|
|
{
|
|
if (intel_private.i9xx_flush_page)
|
|
writel(1, intel_private.i9xx_flush_page);
|
|
}
|
|
|
|
static void i965_write_entry(dma_addr_t addr,
|
|
unsigned int entry,
|
|
unsigned int flags)
|
|
{
|
|
u32 pte_flags;
|
|
|
|
pte_flags = I810_PTE_VALID;
|
|
if (flags == AGP_USER_CACHED_MEMORY)
|
|
pte_flags |= I830_PTE_SYSTEM_CACHED;
|
|
|
|
/* Shift high bits down */
|
|
addr |= (addr >> 28) & 0xf0;
|
|
writel(addr | pte_flags, intel_private.gtt + entry);
|
|
}
|
|
|
|
static bool gen6_check_flags(unsigned int flags)
|
|
{
|
|
return true;
|
|
}
|
|
|
|
static void gen6_write_entry(dma_addr_t addr, unsigned int entry,
|
|
unsigned int flags)
|
|
{
|
|
unsigned int type_mask = flags & ~AGP_USER_CACHED_MEMORY_GFDT;
|
|
unsigned int gfdt = flags & AGP_USER_CACHED_MEMORY_GFDT;
|
|
u32 pte_flags;
|
|
|
|
if (type_mask == AGP_USER_MEMORY)
|
|
pte_flags = GEN6_PTE_UNCACHED | I810_PTE_VALID;
|
|
else if (type_mask == AGP_USER_CACHED_MEMORY_LLC_MLC) {
|
|
pte_flags = GEN6_PTE_LLC_MLC | I810_PTE_VALID;
|
|
if (gfdt)
|
|
pte_flags |= GEN6_PTE_GFDT;
|
|
} else { /* set 'normal'/'cached' to LLC by default */
|
|
pte_flags = GEN6_PTE_LLC | I810_PTE_VALID;
|
|
if (gfdt)
|
|
pte_flags |= GEN6_PTE_GFDT;
|
|
}
|
|
|
|
/* gen6 has bit11-4 for physical addr bit39-32 */
|
|
addr |= (addr >> 28) & 0xff0;
|
|
writel(addr | pte_flags, intel_private.gtt + entry);
|
|
}
|
|
|
|
static void gen6_cleanup(void)
|
|
{
|
|
}
|
|
|
|
/* Certain Gen5 chipsets require require idling the GPU before
|
|
* unmapping anything from the GTT when VT-d is enabled.
|
|
*/
|
|
extern int intel_iommu_gfx_mapped;
|
|
static inline int needs_idle_maps(void)
|
|
{
|
|
const unsigned short gpu_devid = intel_private.pcidev->device;
|
|
|
|
/* Query intel_iommu to see if we need the workaround. Presumably that
|
|
* was loaded first.
|
|
*/
|
|
if ((gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_HB ||
|
|
gpu_devid == PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG) &&
|
|
intel_iommu_gfx_mapped)
|
|
return 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int i9xx_setup(void)
|
|
{
|
|
u32 reg_addr;
|
|
|
|
pci_read_config_dword(intel_private.pcidev, I915_MMADDR, ®_addr);
|
|
|
|
reg_addr &= 0xfff80000;
|
|
|
|
intel_private.registers = ioremap(reg_addr, 128 * 4096);
|
|
if (!intel_private.registers)
|
|
return -ENOMEM;
|
|
|
|
if (INTEL_GTT_GEN == 3) {
|
|
u32 gtt_addr;
|
|
|
|
pci_read_config_dword(intel_private.pcidev,
|
|
I915_PTEADDR, >t_addr);
|
|
intel_private.gtt_bus_addr = gtt_addr;
|
|
} else {
|
|
u32 gtt_offset;
|
|
|
|
switch (INTEL_GTT_GEN) {
|
|
case 5:
|
|
case 6:
|
|
gtt_offset = MB(2);
|
|
break;
|
|
case 4:
|
|
default:
|
|
gtt_offset = KB(512);
|
|
break;
|
|
}
|
|
intel_private.gtt_bus_addr = reg_addr + gtt_offset;
|
|
}
|
|
|
|
if (needs_idle_maps());
|
|
intel_private.base.do_idle_maps = 1;
|
|
|
|
intel_i9xx_setup_flush();
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct agp_bridge_driver intel_fake_agp_driver = {
|
|
.owner = THIS_MODULE,
|
|
.size_type = FIXED_APER_SIZE,
|
|
.aperture_sizes = intel_fake_agp_sizes,
|
|
.num_aperture_sizes = ARRAY_SIZE(intel_fake_agp_sizes),
|
|
.configure = intel_fake_agp_configure,
|
|
.fetch_size = intel_fake_agp_fetch_size,
|
|
.cleanup = intel_gtt_cleanup,
|
|
.agp_enable = intel_fake_agp_enable,
|
|
.cache_flush = global_cache_flush,
|
|
.create_gatt_table = intel_fake_agp_create_gatt_table,
|
|
.free_gatt_table = intel_fake_agp_free_gatt_table,
|
|
.insert_memory = intel_fake_agp_insert_entries,
|
|
.remove_memory = intel_fake_agp_remove_entries,
|
|
.alloc_by_type = intel_fake_agp_alloc_by_type,
|
|
.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,
|
|
};
|
|
|
|
static const struct intel_gtt_driver i81x_gtt_driver = {
|
|
.gen = 1,
|
|
.has_pgtbl_enable = 1,
|
|
.dma_mask_size = 32,
|
|
.setup = i810_setup,
|
|
.cleanup = i810_cleanup,
|
|
.check_flags = i830_check_flags,
|
|
.write_entry = i810_write_entry,
|
|
};
|
|
static const struct intel_gtt_driver i8xx_gtt_driver = {
|
|
.gen = 2,
|
|
.has_pgtbl_enable = 1,
|
|
.setup = i830_setup,
|
|
.cleanup = i830_cleanup,
|
|
.write_entry = i830_write_entry,
|
|
.dma_mask_size = 32,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i830_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver i915_gtt_driver = {
|
|
.gen = 3,
|
|
.has_pgtbl_enable = 1,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
/* i945 is the last gpu to need phys mem (for overlay and cursors). */
|
|
.write_entry = i830_write_entry,
|
|
.dma_mask_size = 32,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver g33_gtt_driver = {
|
|
.gen = 3,
|
|
.is_g33 = 1,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
.write_entry = i965_write_entry,
|
|
.dma_mask_size = 36,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver pineview_gtt_driver = {
|
|
.gen = 3,
|
|
.is_pineview = 1, .is_g33 = 1,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
.write_entry = i965_write_entry,
|
|
.dma_mask_size = 36,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver i965_gtt_driver = {
|
|
.gen = 4,
|
|
.has_pgtbl_enable = 1,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
.write_entry = i965_write_entry,
|
|
.dma_mask_size = 36,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver g4x_gtt_driver = {
|
|
.gen = 5,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
.write_entry = i965_write_entry,
|
|
.dma_mask_size = 36,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver ironlake_gtt_driver = {
|
|
.gen = 5,
|
|
.is_ironlake = 1,
|
|
.setup = i9xx_setup,
|
|
.cleanup = i9xx_cleanup,
|
|
.write_entry = i965_write_entry,
|
|
.dma_mask_size = 36,
|
|
.check_flags = i830_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
static const struct intel_gtt_driver sandybridge_gtt_driver = {
|
|
.gen = 6,
|
|
.setup = i9xx_setup,
|
|
.cleanup = gen6_cleanup,
|
|
.write_entry = gen6_write_entry,
|
|
.dma_mask_size = 40,
|
|
.check_flags = gen6_check_flags,
|
|
.chipset_flush = i9xx_chipset_flush,
|
|
};
|
|
|
|
/* 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;
|
|
const struct intel_gtt_driver *gtt_driver;
|
|
} intel_gtt_chipsets[] = {
|
|
{ PCI_DEVICE_ID_INTEL_82810_IG1, "i810",
|
|
&i81x_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82810_IG3, "i810",
|
|
&i81x_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82810E_IG, "i810",
|
|
&i81x_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82815_CGC, "i815",
|
|
&i81x_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82830_CGC, "830M",
|
|
&i8xx_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82845G_IG, "845G",
|
|
&i8xx_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82854_IG, "854",
|
|
&i8xx_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82855GM_IG, "855GM",
|
|
&i8xx_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_82865_IG, "865",
|
|
&i8xx_gtt_driver},
|
|
{ PCI_DEVICE_ID_INTEL_E7221_IG, "E7221 (i915)",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82915G_IG, "915G",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82915GM_IG, "915GM",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82945G_IG, "945G",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82945GM_IG, "945GM",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82945GME_IG, "945GME",
|
|
&i915_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82946GZ_IG, "946GZ",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82G35_IG, "G35",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82965Q_IG, "965Q",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82965G_IG, "965G",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82965GM_IG, "965GM",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_82965GME_IG, "965GME/GLE",
|
|
&i965_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_G33_IG, "G33",
|
|
&g33_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_Q35_IG, "Q35",
|
|
&g33_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_Q33_IG, "Q33",
|
|
&g33_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_PINEVIEW_M_IG, "GMA3150",
|
|
&pineview_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_PINEVIEW_IG, "GMA3150",
|
|
&pineview_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_GM45_IG, "GM45",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_EAGLELAKE_IG, "Eaglelake",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_Q45_IG, "Q45/Q43",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_G45_IG, "G45/G43",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_B43_IG, "B43",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_B43_1_IG, "B43",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_G41_IG, "G41",
|
|
&g4x_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
|
|
"HD Graphics", &ironlake_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IRONLAKE_M_IG,
|
|
"HD Graphics", &ironlake_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT1_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_GT2_PLUS_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT1_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_M_GT2_PLUS_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_SANDYBRIDGE_S_IG,
|
|
"Sandybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_GT1_IG,
|
|
"Ivybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_GT2_IG,
|
|
"Ivybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_M_GT1_IG,
|
|
"Ivybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_M_GT2_IG,
|
|
"Ivybridge", &sandybridge_gtt_driver },
|
|
{ PCI_DEVICE_ID_INTEL_IVYBRIDGE_S_GT1_IG,
|
|
"Ivybridge", &sandybridge_gtt_driver },
|
|
{ 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;
|
|
}
|
|
|
|
int intel_gmch_probe(struct pci_dev *pdev,
|
|
struct agp_bridge_data *bridge)
|
|
{
|
|
int i, mask;
|
|
intel_private.driver = NULL;
|
|
|
|
for (i = 0; intel_gtt_chipsets[i].name != NULL; i++) {
|
|
if (find_gmch(intel_gtt_chipsets[i].gmch_chip_id)) {
|
|
intel_private.driver =
|
|
intel_gtt_chipsets[i].gtt_driver;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!intel_private.driver)
|
|
return 0;
|
|
|
|
bridge->driver = &intel_fake_agp_driver;
|
|
bridge->dev_private_data = &intel_private;
|
|
bridge->dev = pdev;
|
|
|
|
intel_private.bridge_dev = pci_dev_get(pdev);
|
|
|
|
dev_info(&pdev->dev, "Intel %s Chipset\n", intel_gtt_chipsets[i].name);
|
|
|
|
mask = intel_private.driver->dma_mask_size;
|
|
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));
|
|
|
|
/*if (bridge->driver == &intel_810_driver)
|
|
return 1;*/
|
|
|
|
if (intel_gtt_init() != 0)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
EXPORT_SYMBOL(intel_gmch_probe);
|
|
|
|
const struct intel_gtt *intel_gtt_get(void)
|
|
{
|
|
return &intel_private.base;
|
|
}
|
|
EXPORT_SYMBOL(intel_gtt_get);
|
|
|
|
void intel_gtt_chipset_flush(void)
|
|
{
|
|
if (intel_private.driver->chipset_flush)
|
|
intel_private.driver->chipset_flush();
|
|
}
|
|
EXPORT_SYMBOL(intel_gtt_chipset_flush);
|
|
|
|
void intel_gmch_remove(struct pci_dev *pdev)
|
|
{
|
|
if (intel_private.pcidev)
|
|
pci_dev_put(intel_private.pcidev);
|
|
if (intel_private.bridge_dev)
|
|
pci_dev_put(intel_private.bridge_dev);
|
|
}
|
|
EXPORT_SYMBOL(intel_gmch_remove);
|
|
|
|
MODULE_AUTHOR("Dave Jones <davej@redhat.com>");
|
|
MODULE_LICENSE("GPL and additional rights");
|