diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index 1f7e6b9df45d..c25e8b017875 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -770,10 +770,10 @@ static void gen8_ppgtt_clear_range(struct i915_address_space *vm, gen8_ppgtt_clear_pte_range(vm, &ppgtt->pdp, start, length, scratch_pte); } else { - uint64_t templ4, pml4e; + uint64_t pml4e; struct i915_page_directory_pointer *pdp; - gen8_for_each_pml4e(pdp, &ppgtt->pml4, start, length, templ4, pml4e) { + gen8_for_each_pml4e(pdp, &ppgtt->pml4, start, length, pml4e) { gen8_ppgtt_clear_pte_range(vm, pdp, start, length, scratch_pte); } @@ -839,10 +839,10 @@ static void gen8_ppgtt_insert_entries(struct i915_address_space *vm, cache_level); } else { struct i915_page_directory_pointer *pdp; - uint64_t templ4, pml4e; + uint64_t pml4e; uint64_t length = (uint64_t)pages->orig_nents << PAGE_SHIFT; - gen8_for_each_pml4e(pdp, &ppgtt->pml4, start, length, templ4, pml4e) { + gen8_for_each_pml4e(pdp, &ppgtt->pml4, start, length, pml4e) { gen8_ppgtt_insert_pte_entries(vm, pdp, &sg_iter, start, cache_level); } @@ -1020,10 +1020,9 @@ static int gen8_ppgtt_alloc_pagetabs(struct i915_address_space *vm, { struct drm_device *dev = vm->dev; struct i915_page_table *pt; - uint64_t temp; uint32_t pde; - gen8_for_each_pde(pt, pd, start, length, temp, pde) { + gen8_for_each_pde(pt, pd, start, length, pde) { /* Don't reallocate page tables */ if (test_bit(pde, pd->used_pdes)) { /* Scratch is never allocated this way */ @@ -1082,13 +1081,12 @@ gen8_ppgtt_alloc_page_directories(struct i915_address_space *vm, { struct drm_device *dev = vm->dev; struct i915_page_directory *pd; - uint64_t temp; uint32_t pdpe; uint32_t pdpes = I915_PDPES_PER_PDP(dev); WARN_ON(!bitmap_empty(new_pds, pdpes)); - gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) { + gen8_for_each_pdpe(pd, pdp, start, length, pdpe) { if (test_bit(pdpe, pdp->used_pdpes)) continue; @@ -1136,12 +1134,11 @@ gen8_ppgtt_alloc_page_dirpointers(struct i915_address_space *vm, { struct drm_device *dev = vm->dev; struct i915_page_directory_pointer *pdp; - uint64_t temp; uint32_t pml4e; WARN_ON(!bitmap_empty(new_pdps, GEN8_PML4ES_PER_PML4)); - gen8_for_each_pml4e(pdp, pml4, start, length, temp, pml4e) { + gen8_for_each_pml4e(pdp, pml4, start, length, pml4e) { if (!test_bit(pml4e, pml4->used_pml4es)) { pdp = alloc_pdp(dev); if (IS_ERR(pdp)) @@ -1225,7 +1222,6 @@ static int gen8_alloc_va_range_3lvl(struct i915_address_space *vm, struct i915_page_directory *pd; const uint64_t orig_start = start; const uint64_t orig_length = length; - uint64_t temp; uint32_t pdpe; uint32_t pdpes = I915_PDPES_PER_PDP(dev); int ret; @@ -1252,7 +1248,7 @@ static int gen8_alloc_va_range_3lvl(struct i915_address_space *vm, } /* For every page directory referenced, allocate page tables */ - gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) { + gen8_for_each_pdpe(pd, pdp, start, length, pdpe) { ret = gen8_ppgtt_alloc_pagetabs(vm, pd, start, length, new_page_tables + pdpe * BITS_TO_LONGS(I915_PDES)); if (ret) @@ -1264,7 +1260,7 @@ static int gen8_alloc_va_range_3lvl(struct i915_address_space *vm, /* Allocations have completed successfully, so set the bitmaps, and do * the mappings. */ - gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) { + gen8_for_each_pdpe(pd, pdp, start, length, pdpe) { gen8_pde_t *const page_directory = kmap_px(pd); struct i915_page_table *pt; uint64_t pd_len = length; @@ -1274,7 +1270,7 @@ static int gen8_alloc_va_range_3lvl(struct i915_address_space *vm, /* Every pd should be allocated, we just did that above. */ WARN_ON(!pd); - gen8_for_each_pde(pt, pd, pd_start, pd_len, temp, pde) { + gen8_for_each_pde(pt, pd, pd_start, pd_len, pde) { /* Same reasoning as pd */ WARN_ON(!pt); WARN_ON(!pd_len); @@ -1311,6 +1307,8 @@ static int gen8_alloc_va_range_3lvl(struct i915_address_space *vm, err_out: while (pdpe--) { + unsigned long temp; + for_each_set_bit(temp, new_page_tables + pdpe * BITS_TO_LONGS(I915_PDES), I915_PDES) free_pt(dev, pdp->page_directory[pdpe]->page_table[temp]); @@ -1333,7 +1331,7 @@ static int gen8_alloc_va_range_4lvl(struct i915_address_space *vm, struct i915_hw_ppgtt *ppgtt = container_of(vm, struct i915_hw_ppgtt, base); struct i915_page_directory_pointer *pdp; - uint64_t temp, pml4e; + uint64_t pml4e; int ret = 0; /* Do the pml4 allocations first, so we don't need to track the newly @@ -1352,7 +1350,7 @@ static int gen8_alloc_va_range_4lvl(struct i915_address_space *vm, "The allocation has spanned more than 512GB. " "It is highly likely this is incorrect."); - gen8_for_each_pml4e(pdp, pml4, start, length, temp, pml4e) { + gen8_for_each_pml4e(pdp, pml4, start, length, pml4e) { WARN_ON(!pdp); ret = gen8_alloc_va_range_3lvl(vm, pdp, start, length); @@ -1392,10 +1390,9 @@ static void gen8_dump_pdp(struct i915_page_directory_pointer *pdp, struct seq_file *m) { struct i915_page_directory *pd; - uint64_t temp; uint32_t pdpe; - gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) { + gen8_for_each_pdpe(pd, pdp, start, length, pdpe) { struct i915_page_table *pt; uint64_t pd_len = length; uint64_t pd_start = start; @@ -1405,7 +1402,7 @@ static void gen8_dump_pdp(struct i915_page_directory_pointer *pdp, continue; seq_printf(m, "\tPDPE #%d\n", pdpe); - gen8_for_each_pde(pt, pd, pd_start, pd_len, temp, pde) { + gen8_for_each_pde(pt, pd, pd_start, pd_len, pde) { uint32_t pte; gen8_pte_t *pt_vaddr; @@ -1455,11 +1452,11 @@ static void gen8_dump_ppgtt(struct i915_hw_ppgtt *ppgtt, struct seq_file *m) if (!USES_FULL_48BIT_PPGTT(vm->dev)) { gen8_dump_pdp(&ppgtt->pdp, start, length, scratch_pte, m); } else { - uint64_t templ4, pml4e; + uint64_t pml4e; struct i915_pml4 *pml4 = &ppgtt->pml4; struct i915_page_directory_pointer *pdp; - gen8_for_each_pml4e(pdp, pml4, start, length, templ4, pml4e) { + gen8_for_each_pml4e(pdp, pml4, start, length, pml4e) { if (!test_bit(pml4e, pml4->used_pml4es)) continue; diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.h b/drivers/gpu/drm/i915/i915_gem_gtt.h index 877c32c78a6a..b448ad832dcf 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.h +++ b/drivers/gpu/drm/i915/i915_gem_gtt.h @@ -455,32 +455,29 @@ static inline uint32_t gen6_pde_index(uint32_t addr) * 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); \ - length > 0 && iter < I915_PDES ? \ - (pt = (pd)->page_table[iter]), 1 : 0; \ - iter++, \ - temp = ALIGN(start+1, 1 << GEN8_PDE_SHIFT) - start, \ - temp = min(temp, length), \ - start += temp, length -= temp) +#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, temp, iter) \ - for (iter = gen8_pdpe_index(start); \ - length > 0 && (iter < I915_PDPES_PER_PDP(dev)) ? \ - (pd = (pdp)->page_directory[iter]), 1 : 0; \ - iter++, \ - temp = ALIGN(start+1, 1 << GEN8_PDPE_SHIFT) - start, \ - temp = min(temp, length), \ - start += temp, length -= temp) +#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, temp, iter) \ - for (iter = gen8_pml4e_index(start); \ - length > 0 && iter < GEN8_PML4ES_PER_PML4 ? \ - (pdp = (pml4)->pdps[iter]), 1 : 0; \ - iter++, \ - temp = ALIGN(start+1, 1ULL << GEN8_PML4E_SHIFT) - start, \ - temp = min(temp, length), \ - start += temp, length -= temp) +#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) {