diff options
| author | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-05-10 12:57:04 +0300 |
|---|---|---|
| committer | Tvrtko Ursulin <tvrtko.ursulin@intel.com> | 2016-05-11 14:27:27 +0300 |
| commit | ae5702d245c2328f1b4afa4ae7d39792a8064d48 (patch) | |
| tree | af256c3c4d8059deb41a50ace3b231d6ec9c37ef /drivers/gpu | |
| parent | dc97997a21fe1708fc93021baa4ba90db7a3b57f (diff) | |
| download | linux-ae5702d245c2328f1b4afa4ae7d39792a8064d48.tar.xz | |
drm/i915: Make IS_GENx macros work on a mask
If instead of numerical comparison me make these test a
bitmask, we enable the compiler to optimize all instances
of IS_GENx || IS_GENy.
v2: Make bit zero of gen mask mean gen 1.
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_dma.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 17 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/intel_uncore.c | 4 |
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; } |