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authorDave Airlie <airlied@redhat.com>2010-02-25 13:39:36 +1000
committerDave Airlie <airlied@redhat.com>2010-02-25 13:39:36 +1000
commit30d6c72c4a760cfc9069ee100786e4d6cf6de59d (patch)
treee2f1b3bad0a161a1e94705cb14d2b8c2760caf91 /drivers/gpu/drm/i915/i915_gem_tiling.c
parentde19322d554fd0f449d17610823c38494c06db9e (diff)
parent9df30794f609d9412f14cfd0eb7b45dd64d0b14e (diff)
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Merge remote branch 'anholt/drm-intel-next' into drm-next-stage
* anholt/drm-intel-next: drm/i915: Record batch buffer following GPU error drm/i915: give up on 8xx lid status drm/i915: reduce some of the duplication of tiling checking drm/i915: blow away userspace mappings before fence change drm/i915: move a gtt flush to the correct place agp/intel: official names for Pineview and Ironlake drm/i915: overlay: drop superflous gpu flushes drm/i915: overlay: nuke readback to flush wc caches drm/i915: provide self-refresh status in debugfs drm/i915: provide FBC status in debugfs drm/i915: fix drps disable so unload & re-load works drm/i915: Fix OGLC performance regression on 945 drm/i915: Deobfuscate the render p-state obfuscation drm/i915: add dynamic performance control support for Ironlake drm/i915: enable memory self refresh on 9xx drm/i915: Don't reserve compatibility fence regs in KMS mode. drm/i915: Keep MCHBAR always enabled drm/i915: Replace open-coded eviction in i915_gem_idle()
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_tiling.c')
-rw-r--r--drivers/gpu/drm/i915/i915_gem_tiling.c163
1 files changed, 1 insertions, 162 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_tiling.c b/drivers/gpu/drm/i915/i915_gem_tiling.c
index 137e888427f1..20653776965a 100644
--- a/drivers/gpu/drm/i915/i915_gem_tiling.c
+++ b/drivers/gpu/drm/i915/i915_gem_tiling.c
@@ -25,8 +25,6 @@
*
*/
-#include <linux/acpi.h>
-#include <linux/pnp.h>
#include "linux/string.h"
#include "linux/bitops.h"
#include "drmP.h"
@@ -83,120 +81,6 @@
* to match what the GPU expects.
*/
-#define MCHBAR_I915 0x44
-#define MCHBAR_I965 0x48
-#define MCHBAR_SIZE (4*4096)
-
-#define DEVEN_REG 0x54
-#define DEVEN_MCHBAR_EN (1 << 28)
-
-/* Allocate space for the MCH regs if needed, return nonzero on error */
-static int
-intel_alloc_mchbar_resource(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
- u32 temp_lo, temp_hi = 0;
- u64 mchbar_addr;
- int ret = 0;
-
- if (IS_I965G(dev))
- pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
- pci_read_config_dword(dev_priv->bridge_dev, reg, &temp_lo);
- mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
-
- /* If ACPI doesn't have it, assume we need to allocate it ourselves */
-#ifdef CONFIG_PNP
- if (mchbar_addr &&
- pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
- ret = 0;
- goto out;
- }
-#endif
-
- /* Get some space for it */
- ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res,
- MCHBAR_SIZE, MCHBAR_SIZE,
- PCIBIOS_MIN_MEM,
- 0, pcibios_align_resource,
- dev_priv->bridge_dev);
- if (ret) {
- DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
- dev_priv->mch_res.start = 0;
- goto out;
- }
-
- if (IS_I965G(dev))
- pci_write_config_dword(dev_priv->bridge_dev, reg + 4,
- upper_32_bits(dev_priv->mch_res.start));
-
- pci_write_config_dword(dev_priv->bridge_dev, reg,
- lower_32_bits(dev_priv->mch_res.start));
-out:
- return ret;
-}
-
-/* Setup MCHBAR if possible, return true if we should disable it again */
-static bool
-intel_setup_mchbar(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
- u32 temp;
- bool need_disable = false, enabled;
-
- if (IS_I915G(dev) || IS_I915GM(dev)) {
- pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
- enabled = !!(temp & DEVEN_MCHBAR_EN);
- } else {
- pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
- enabled = temp & 1;
- }
-
- /* If it's already enabled, don't have to do anything */
- if (enabled)
- goto out;
-
- if (intel_alloc_mchbar_resource(dev))
- goto out;
-
- need_disable = true;
-
- /* Space is allocated or reserved, so enable it. */
- if (IS_I915G(dev) || IS_I915GM(dev)) {
- pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
- temp | DEVEN_MCHBAR_EN);
- } else {
- pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
- pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp | 1);
- }
-out:
- return need_disable;
-}
-
-static void
-intel_teardown_mchbar(struct drm_device *dev, bool disable)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
- u32 temp;
-
- if (disable) {
- if (IS_I915G(dev) || IS_I915GM(dev)) {
- pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
- temp &= ~DEVEN_MCHBAR_EN;
- pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG, temp);
- } else {
- pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
- temp &= ~1;
- pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp);
- }
- }
-
- if (dev_priv->mch_res.start)
- release_resource(&dev_priv->mch_res);
-}
-
/**
* Detects bit 6 swizzling of address lookup between IGD access and CPU
* access through main memory.
@@ -207,7 +91,6 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
drm_i915_private_t *dev_priv = dev->dev_private;
uint32_t swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
uint32_t swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
- bool need_disable;
if (IS_IRONLAKE(dev)) {
/* On Ironlake whatever DRAM config, GPU always do
@@ -224,9 +107,6 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
} else if (IS_MOBILE(dev)) {
uint32_t dcc;
- /* Try to make sure MCHBAR is enabled before poking at it */
- need_disable = intel_setup_mchbar(dev);
-
/* On mobile 9xx chipsets, channel interleave by the CPU is
* determined by DCC. For single-channel, neither the CPU
* nor the GPU do swizzling. For dual channel interleaved,
@@ -266,8 +146,6 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
swizzle_x = I915_BIT_6_SWIZZLE_UNKNOWN;
swizzle_y = I915_BIT_6_SWIZZLE_UNKNOWN;
}
-
- intel_teardown_mchbar(dev, need_disable);
} else {
/* The 965, G33, and newer, have a very flexible memory
* configuration. It will enable dual-channel mode
@@ -302,39 +180,6 @@ i915_gem_detect_bit_6_swizzle(struct drm_device *dev)
dev_priv->mm.bit_6_swizzle_y = swizzle_y;
}
-
-/**
- * Returns whether an object is currently fenceable. If not, it may need
- * to be unbound and have its pitch adjusted.
- */
-bool
-i915_obj_fenceable(struct drm_device *dev, struct drm_gem_object *obj)
-{
- struct drm_i915_gem_object *obj_priv = obj->driver_private;
-
- if (IS_I965G(dev)) {
- /* The 965 can have fences at any page boundary. */
- if (obj->size & 4095)
- return false;
- return true;
- } else if (IS_I9XX(dev)) {
- if (obj_priv->gtt_offset & ~I915_FENCE_START_MASK)
- return false;
- } else {
- if (obj_priv->gtt_offset & ~I830_FENCE_START_MASK)
- return false;
- }
-
- /* Power of two sized... */
- if (obj->size & (obj->size - 1))
- return false;
-
- /* Objects must be size aligned as well */
- if (obj_priv->gtt_offset & (obj->size - 1))
- return false;
- return true;
-}
-
/* Check pitch constriants for all chips & tiling formats */
bool
i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
@@ -391,7 +236,7 @@ i915_tiling_ok(struct drm_device *dev, int stride, int size, int tiling_mode)
return true;
}
-static bool
+bool
i915_gem_object_fence_offset_ok(struct drm_gem_object *obj, int tiling_mode)
{
struct drm_device *dev = obj->dev;
@@ -491,12 +336,6 @@ i915_gem_set_tiling(struct drm_device *dev, void *data,
goto err;
}
- /* If we've changed tiling, GTT-mappings of the object
- * need to re-fault to ensure that the correct fence register
- * setup is in place.
- */
- i915_gem_release_mmap(obj);
-
obj_priv->tiling_mode = args->tiling_mode;
obj_priv->stride = args->stride;
}