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Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_gtt.h')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_gtt.h49
1 files changed, 23 insertions, 26 deletions
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_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_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_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)
{