typedef uint32_t gen6_pte_t;
typedef uint64_t gen8_pte_t;
typedef uint64_t gen8_pde_t;
+typedef uint64_t gen8_ppgtt_pdpe_t;
+typedef uint64_t gen8_ppgtt_pml4e_t;
#define gtt_total_entries(gtt) ((gtt).base.total >> PAGE_SHIFT)
* PDPE | PDE | PTE | offset
* The difference as compared to normal x86 3 level page table is the PDPEs are
* programmed via register.
+ *
+ * GEN8 48b legacy style address is defined as a 4 level page table:
+ * 47:39 | 38:30 | 29:21 | 20:12 | 11:0
+ * PML4E | PDPE | PDE | PTE | offset
*/
+#define GEN8_PML4ES_PER_PML4 512
+#define GEN8_PML4E_SHIFT 39
+#define GEN8_PML4E_MASK (GEN8_PML4ES_PER_PML4 - 1)
#define GEN8_PDPE_SHIFT 30
-#define GEN8_PDPE_MASK 0x3
+/* NB: GEN8_PDPE_MASK is untrue for 32b platforms, but it has no impact on 32b page
+ * tables */
+#define GEN8_PDPE_MASK 0x1ff
#define GEN8_PDE_SHIFT 21
#define GEN8_PDE_MASK 0x1ff
#define GEN8_PTE_SHIFT 12
#define GEN8_LEGACY_PDPES 4
#define GEN8_PTES I915_PTES(sizeof(gen8_pte_t))
+#define I915_PDPES_PER_PDP(dev) (USES_FULL_48BIT_PPGTT(dev) ?\
+ GEN8_PML4ES_PER_PML4 : GEN8_LEGACY_PDPES)
+
#define PPAT_UNCACHED_INDEX (_PAGE_PWT | _PAGE_PCD)
#define PPAT_CACHED_PDE_INDEX 0 /* WB LLC */
#define PPAT_CACHED_INDEX _PAGE_PAT /* WB LLCeLLC */
struct intel_rotation_info {
unsigned int height;
unsigned int pitch;
+ unsigned int uv_offset;
uint32_t pixel_format;
uint64_t fb_modifier;
unsigned int width_pages, height_pages;
uint64_t size;
+ unsigned int width_pages_uv, height_pages_uv;
+ uint64_t size_uv;
+ unsigned int uv_start_page;
};
struct i915_ggtt_view {
union {
struct {
- unsigned long offset;
+ u64 offset;
unsigned int size;
} partial;
+ struct intel_rotation_info rotation_info;
} params;
struct sg_table *pages;
-
- union {
- struct intel_rotation_info rotation_info;
- };
};
extern const struct i915_ggtt_view i915_ggtt_view_normal;
};
struct i915_page_directory_pointer {
- /* struct page *page; */
- DECLARE_BITMAP(used_pdpes, GEN8_LEGACY_PDPES);
- struct i915_page_directory *page_directory[GEN8_LEGACY_PDPES];
+ struct i915_page_dma base;
+
+ unsigned long *used_pdpes;
+ struct i915_page_directory **page_directory;
+};
+
+struct i915_pml4 {
+ struct i915_page_dma base;
+
+ DECLARE_BITMAP(used_pml4es, GEN8_PML4ES_PER_PML4);
+ struct i915_page_directory_pointer *pdps[GEN8_PML4ES_PER_PML4];
};
struct i915_address_space {
struct i915_page_scratch *scratch_page;
struct i915_page_table *scratch_pt;
struct i915_page_directory *scratch_pd;
+ struct i915_page_directory_pointer *scratch_pdp; /* GEN8+ & 48b PPGTT */
/**
* List of objects currently involved in rendering.
struct i915_address_space base;
size_t stolen_size; /* Total size of stolen memory */
+ size_t stolen_usable_size; /* Total size minus BIOS reserved */
u64 mappable_end; /* End offset that we can CPU map */
struct io_mapping *mappable; /* Mapping to our CPU mappable region */
phys_addr_t mappable_base; /* PA of our GMADR */
struct drm_mm_node node;
unsigned long pd_dirty_rings;
union {
- struct i915_page_directory_pointer pdp;
- struct i915_page_directory pd;
+ struct i915_pml4 pml4; /* GEN8+ & 48b PPGTT */
+ struct i915_page_directory_pointer pdp; /* GEN8+ */
+ struct i915_page_directory pd; /* GEN6-7 */
};
struct drm_i915_file_private *file_priv;
*/
#define gen6_for_each_pde(pt, pd, start, length, temp, iter) \
for (iter = gen6_pde_index(start); \
- pt = (pd)->page_table[iter], length > 0 && iter < I915_PDES; \
+ length > 0 && iter < I915_PDES ? \
+ (pt = (pd)->page_table[iter]), 1 : 0; \
iter++, \
temp = ALIGN(start+1, 1 << GEN6_PDE_SHIFT) - start, \
temp = min_t(unsigned, temp, length), \
* between from start until start + length. On gen8+ it simply iterates
* over every page directory entry in a page directory.
*/
-#define gen8_for_each_pde(pt, pd, start, length, temp, iter) \
- for (iter = gen8_pde_index(start); \
- pt = (pd)->page_table[iter], length > 0 && iter < I915_PDES; \
- iter++, \
- temp = ALIGN(start+1, 1 << GEN8_PDE_SHIFT) - start, \
- temp = min(temp, length), \
- start += temp, length -= temp)
-
-#define gen8_for_each_pdpe(pd, pdp, start, length, temp, iter) \
- for (iter = gen8_pdpe_index(start); \
- pd = (pdp)->page_directory[iter], length > 0 && iter < GEN8_LEGACY_PDPES; \
- iter++, \
- temp = ALIGN(start+1, 1 << GEN8_PDPE_SHIFT) - start, \
- temp = min(temp, length), \
- start += temp, length -= temp)
-
-/* Clamp length to the next page_directory boundary */
-static inline uint64_t gen8_clamp_pd(uint64_t start, uint64_t length)
-{
- uint64_t next_pd = ALIGN(start + 1, 1 << GEN8_PDPE_SHIFT);
-
- if (next_pd > (start + length))
- return length;
-
- return next_pd - start;
-}
+#define gen8_for_each_pde(pt, pd, start, length, iter) \
+ for (iter = gen8_pde_index(start); \
+ length > 0 && iter < I915_PDES && \
+ (pt = (pd)->page_table[iter], true); \
+ ({ u64 temp = ALIGN(start+1, 1 << GEN8_PDE_SHIFT); \
+ temp = min(temp - start, length); \
+ start += temp, length -= temp; }), ++iter)
+
+#define gen8_for_each_pdpe(pd, pdp, start, length, iter) \
+ for (iter = gen8_pdpe_index(start); \
+ length > 0 && iter < I915_PDPES_PER_PDP(dev) && \
+ (pd = (pdp)->page_directory[iter], true); \
+ ({ u64 temp = ALIGN(start+1, 1 << GEN8_PDPE_SHIFT); \
+ temp = min(temp - start, length); \
+ start += temp, length -= temp; }), ++iter)
+
+#define gen8_for_each_pml4e(pdp, pml4, start, length, iter) \
+ for (iter = gen8_pml4e_index(start); \
+ length > 0 && iter < GEN8_PML4ES_PER_PML4 && \
+ (pdp = (pml4)->pdps[iter], true); \
+ ({ u64 temp = ALIGN(start+1, 1ULL << GEN8_PML4E_SHIFT); \
+ temp = min(temp - start, length); \
+ start += temp, length -= temp; }), ++iter)
static inline uint32_t gen8_pte_index(uint64_t address)
{
static inline uint32_t gen8_pml4e_index(uint64_t address)
{
- WARN_ON(1); /* For 64B */
- return 0;
+ return (address >> GEN8_PML4E_SHIFT) & GEN8_PML4E_MASK;
}
static inline size_t gen8_pte_count(uint64_t address, uint64_t length)
if (a->type != b->type)
return false;
- if (a->type == I915_GGTT_VIEW_PARTIAL)
+ if (a->type != I915_GGTT_VIEW_NORMAL)
return !memcmp(&a->params, &b->params, sizeof(a->params));
return true;
}
projects / karo-tx-linux.git / blobdiff