drm/i915/xehpsdv: set min page-size to 64K

Conditionally allocate LMEM with 64K granularity, since 4K page support
for LMEM will be dropped on some platforms when using the PPGTT.

v2:
  updated commit msg [Thomas]

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Thomas Hellstrom <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211208154854.28037-1-ramalingam.c@intel.com

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index bce03d7..ba90ab4 100644 (file)
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -780,6 +780,7 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type,
        struct intel_uncore *uncore = &i915->uncore;
        struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
        struct intel_memory_region *mem;
+       resource_size_t min_page_size;
        resource_size_t io_start;
        resource_size_t lmem_size;
        u64 lmem_base;
@@ -791,8 +792,11 @@ i915_gem_stolen_lmem_setup(struct drm_i915_private *i915, u16 type,
        lmem_size = pci_resource_len(pdev, 2) - lmem_base;
        io_start = pci_resource_start(pdev, 2) + lmem_base;
 
+       min_page_size = HAS_64K_PAGES(i915) ? I915_GTT_PAGE_SIZE_64K :
+                                               I915_GTT_PAGE_SIZE_4K;
+
        mem = intel_memory_region_create(i915, lmem_base, lmem_size,
-                                        I915_GTT_PAGE_SIZE_4K, io_start,
+                                        min_page_size, io_start,
                                         type, instance,
                                         &i915_region_stolen_lmem_ops);
        if (IS_ERR(mem))

diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
index 9ea49e0..fde2dcb 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c
+++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c
@@ -197,6 +197,7 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt)
        struct intel_uncore *uncore = gt->uncore;
        struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
        struct intel_memory_region *mem;
+       resource_size_t min_page_size;
        resource_size_t io_start;
        resource_size_t lmem_size;
        int err;
@@ -211,10 +212,12 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt)
        if (GEM_WARN_ON(lmem_size > pci_resource_len(pdev, 2)))
                return ERR_PTR(-ENODEV);
 
+       min_page_size = HAS_64K_PAGES(i915) ? I915_GTT_PAGE_SIZE_64K :
+                                               I915_GTT_PAGE_SIZE_4K;
        mem = intel_memory_region_create(i915,
                                         0,
                                         lmem_size,
-                                        I915_GTT_PAGE_SIZE_4K,
+                                        min_page_size,
                                         io_start,
                                         INTEL_MEMORY_LOCAL,
                                         0,