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-rw-r--r--drivers/gpu/drm/i915/i915_dma.c3
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h17
-rw-r--r--drivers/gpu/drm/i915/intel_uncore.c4
3 files changed, 14 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index b55fef3679d9..81856f126622 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -1073,6 +1073,9 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv,
memcpy(device_info, info, sizeof(dev_priv->info));
device_info->device_id = dev->pdev->device;
+ BUG_ON(device_info->gen > sizeof(device_info->gen_mask) * BITS_PER_BYTE);
+ device_info->gen_mask = BIT(device_info->gen - 1);
+
spin_lock_init(&dev_priv->irq_lock);
spin_lock_init(&dev_priv->gpu_error.lock);
mutex_init(&dev_priv->backlight_lock);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 4abd39f32c0f..d205b05d9a1a 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -760,6 +760,7 @@ struct intel_device_info {
u8 num_pipes:3;
u8 num_sprites[I915_MAX_PIPES];
u8 gen;
+ u16 gen_mask;
u8 ring_mask; /* Rings supported by the HW */
DEV_INFO_FOR_EACH_FLAG(DEFINE_FLAG, SEP_SEMICOLON);
/* Register offsets for the various display pipes and transcoders */
@@ -2620,14 +2621,14 @@ struct drm_i915_cmd_table {
* have their own (e.g. HAS_PCH_SPLIT for ILK+ display, IS_foo for particular
* chips, etc.).
*/
-#define IS_GEN2(dev) (INTEL_INFO(dev)->gen == 2)
-#define IS_GEN3(dev) (INTEL_INFO(dev)->gen == 3)
-#define IS_GEN4(dev) (INTEL_INFO(dev)->gen == 4)
-#define IS_GEN5(dev) (INTEL_INFO(dev)->gen == 5)
-#define IS_GEN6(dev) (INTEL_INFO(dev)->gen == 6)
-#define IS_GEN7(dev) (INTEL_INFO(dev)->gen == 7)
-#define IS_GEN8(dev) (INTEL_INFO(dev)->gen == 8)
-#define IS_GEN9(dev) (INTEL_INFO(dev)->gen == 9)
+#define IS_GEN2(dev) (INTEL_INFO(dev)->gen_mask & BIT(1))
+#define IS_GEN3(dev) (INTEL_INFO(dev)->gen_mask & BIT(2))
+#define IS_GEN4(dev) (INTEL_INFO(dev)->gen_mask & BIT(3))
+#define IS_GEN5(dev) (INTEL_INFO(dev)->gen_mask & BIT(4))
+#define IS_GEN6(dev) (INTEL_INFO(dev)->gen_mask & BIT(5))
+#define IS_GEN7(dev) (INTEL_INFO(dev)->gen_mask & BIT(6))
+#define IS_GEN8(dev) (INTEL_INFO(dev)->gen_mask & BIT(7))
+#define IS_GEN9(dev) (INTEL_INFO(dev)->gen_mask & BIT(8))
#define RENDER_RING (1<<RCS)
#define BSD_RING (1<<VCS)
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 0c48af2f1b7e..0b1bd07dd04a 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -1391,7 +1391,7 @@ void intel_uncore_fini(struct drm_i915_private *dev_priv)
intel_uncore_forcewake_reset(dev_priv, false);
}
-#define GEN_RANGE(l, h) GENMASK(h, l)
+#define GEN_RANGE(l, h) GENMASK((h) - 1, (l) - 1)
static const struct register_whitelist {
i915_reg_t offset_ldw, offset_udw;
@@ -1416,7 +1416,7 @@ int i915_reg_read_ioctl(struct drm_device *dev,
for (i = 0; i < ARRAY_SIZE(whitelist); i++, entry++) {
if (i915_mmio_reg_offset(entry->offset_ldw) == (reg->offset & -entry->size) &&
- (1 << INTEL_INFO(dev)->gen & entry->gen_bitmask))
+ (INTEL_INFO(dev)->gen_mask & entry->gen_bitmask))
break;
}