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linux-moblin2: Add moblin2 kernel 

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5166 311d38ba-8fff-0310-9ca6-ca027cbcb966
This commit is contained in:
Samuel Ortiz 2008-09-10 15:37:14 +00:00
parent f680c855cf
commit 4f82c5078e
15 changed files with 29499 additions and 0 deletions
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27
meta/packages/linux/linux-moblin2-2.6.27-rc1/0001_Export_shmem_file_setup_for_DRM-GEM.patch Normal file
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From: Keith Packard <keithp@keithp.com>
Date: Fri, 20 Jun 2008 07:08:06 +0000 (-0700)
Subject: Export shmem_file_setup for DRM-GEM
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=350ea3ece12744ae154bbc2ea13da6ba84ca5515
Export shmem_file_setup for DRM-GEM
GEM needs to create shmem files to back buffer objects. Though currently
creation of files for objects could have been driven from userland, the
modesetting work will require allocation of buffer objects before userland
is running, for boot-time message display.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2582,6 +2582,7 @@ put_memory:
shmem_unacct_size(flags, size);
return ERR_PTR(error);
}
+EXPORT_SYMBOL(shmem_file_setup);
/**
* shmem_zero_setup - setup a shared anonymous mapping

2739
meta/packages/linux/linux-moblin2-2.6.27-rc1/0002_i915.Use_more_consistent_names_for_regs.patch Normal file
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421
meta/packages/linux/linux-moblin2-2.6.27-rc1/0003_i915.Add_support_for_MSI_and_interrupt_mitigation.patch Normal file
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From: Eric Anholt <eric@anholt.net>
Date: Tue, 29 Jul 2008 19:10:39 +0000 (-0700)
Subject: i915: Add support for MSI and interrupt mitigation.
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=aae4223e2fd3b29ae8e070b7a16d8cfc70c6a0c0
i915: Add support for MSI and interrupt mitigation.
Previous attempts at interrupt mitigation had been foiled by i915_wait_irq's
failure to update the sarea seqno value when the status page indicated that
the seqno had already been passed. MSI support has been seen to cut CPU
costs by up to 40% in some workloads by avoiding other expensive interrupt
handlers for frequent graphics interrupts.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -63,7 +63,7 @@ int drm_irq_by_busid(struct drm_device *
p->devnum != PCI_SLOT(dev->pdev->devfn) || p->funcnum != PCI_FUNC(dev->pdev->devfn))
return -EINVAL;
- p->irq = dev->irq;
+ p->irq = dev->pdev->irq;
DRM_DEBUG("%d:%d:%d => IRQ %d\n", p->busnum, p->devnum, p->funcnum,
p->irq);
@@ -89,7 +89,7 @@ static int drm_irq_install(struct drm_de
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return -EINVAL;
- if (dev->irq == 0)
+ if (dev->pdev->irq == 0)
return -EINVAL;
mutex_lock(&dev->struct_mutex);
@@ -107,7 +107,7 @@ static int drm_irq_install(struct drm_de
dev->irq_enabled = 1;
mutex_unlock(&dev->struct_mutex);
- DRM_DEBUG("irq=%d\n", dev->irq);
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
if (drm_core_check_feature(dev, DRIVER_IRQ_VBL)) {
init_waitqueue_head(&dev->vbl_queue);
@@ -127,8 +127,12 @@ static int drm_irq_install(struct drm_de
if (drm_core_check_feature(dev, DRIVER_IRQ_SHARED))
sh_flags = IRQF_SHARED;
- ret = request_irq(dev->irq, dev->driver->irq_handler,
+ ret = request_irq(dev->pdev->irq, dev->driver->irq_handler,
sh_flags, dev->devname, dev);
+ /* Expose the device irq number to drivers that want to export it for
+ * whatever reason.
+ */
+ dev->irq = dev->pdev->irq;
if (ret < 0) {
mutex_lock(&dev->struct_mutex);
dev->irq_enabled = 0;
@@ -164,11 +168,11 @@ int drm_irq_uninstall(struct drm_device
if (!irq_enabled)
return -EINVAL;
- DRM_DEBUG("irq=%d\n", dev->irq);
+ DRM_DEBUG("irq=%d\n", dev->pdev->irq);
dev->driver->irq_uninstall(dev);
- free_irq(dev->irq, dev);
+ free_irq(dev->pdev->irq, dev);
dev->locked_tasklet_func = NULL;
@@ -201,7 +205,7 @@ int drm_control(struct drm_device *dev,
if (!drm_core_check_feature(dev, DRIVER_HAVE_IRQ))
return 0;
if (dev->if_version < DRM_IF_VERSION(1, 2) &&
- ctl->irq != dev->irq)
+ ctl->irq != dev->pdev->irq)
return -EINVAL;
return drm_irq_install(dev);
case DRM_UNINST_HANDLER:
@@ -239,7 +243,7 @@ int drm_wait_vblank(struct drm_device *d
int ret = 0;
unsigned int flags, seq;
- if ((!dev->irq) || (!dev->irq_enabled))
+ if ((!dev->pdev->irq) || (!dev->irq_enabled))
return -EINVAL;
if (vblwait->request.type &
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -84,7 +84,7 @@ static int i915_dma_cleanup(struct drm_d
* may not have been called from userspace and after dev_private
* is freed, it's too late.
*/
- if (dev->irq)
+ if (dev->irq_enabled)
drm_irq_uninstall(dev);
if (dev_priv->ring.virtual_start) {
@@ -644,7 +644,7 @@ static int i915_getparam(struct drm_devi
switch (param->param) {
case I915_PARAM_IRQ_ACTIVE:
- value = dev->irq ? 1 : 0;
+ value = dev->irq_enabled;
break;
case I915_PARAM_ALLOW_BATCHBUFFER:
value = dev_priv->allow_batchbuffer ? 1 : 0;
@@ -763,6 +763,20 @@ int i915_driver_load(struct drm_device *
ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
_DRM_KERNEL | _DRM_DRIVER,
&dev_priv->mmio_map);
+
+
+ /* On the 945G/GM, the chipset reports the MSI capability on the
+ * integrated graphics even though the support isn't actually there
+ * according to the published specs. It doesn't appear to function
+ * correctly in testing on 945G.
+ * This may be a side effect of MSI having been made available for PEG
+ * and the registers being closely associated.
+ */
+ if (!IS_I945G(dev) && !IS_I945GM(dev))
+ pci_enable_msi(dev->pdev);
+
+ spin_lock_init(&dev_priv->user_irq_lock);
+
return ret;
}
@@ -770,6 +784,9 @@ int i915_driver_unload(struct drm_device
{
struct drm_i915_private *dev_priv = dev->dev_private;
+ if (dev->pdev->msi_enabled)
+ pci_disable_msi(dev->pdev);
+
if (dev_priv->mmio_map)
drm_rmmap(dev, dev_priv->mmio_map);
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -105,6 +105,12 @@ typedef struct drm_i915_private {
wait_queue_head_t irq_queue;
atomic_t irq_received;
atomic_t irq_emitted;
+ /** Protects user_irq_refcount and irq_mask_reg */
+ spinlock_t user_irq_lock;
+ /** Refcount for i915_user_irq_get() versus i915_user_irq_put(). */
+ int user_irq_refcount;
+ /** Cached value of IMR to avoid reads in updating the bitfield */
+ u32 irq_mask_reg;
int tex_lru_log_granularity;
int allow_batchbuffer;
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -33,6 +33,31 @@
#define MAX_NOPID ((u32)~0)
+/** These are the interrupts used by the driver */
+#define I915_INTERRUPT_ENABLE_MASK (I915_USER_INTERRUPT | \
+ I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT | \
+ I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT)
+
+static inline void
+i915_enable_irq(drm_i915_private_t *dev_priv, u32 mask)
+{
+ if ((dev_priv->irq_mask_reg & mask) != 0) {
+ dev_priv->irq_mask_reg &= ~mask;
+ I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ (void) I915_READ(IMR);
+ }
+}
+
+static inline void
+i915_disable_irq(drm_i915_private_t *dev_priv, u32 mask)
+{
+ if ((dev_priv->irq_mask_reg & mask) != mask) {
+ dev_priv->irq_mask_reg |= mask;
+ I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ (void) I915_READ(IMR);
+ }
+}
+
/**
* Emit blits for scheduled buffer swaps.
*
@@ -229,46 +254,50 @@ irqreturn_t i915_driver_irq_handler(DRM_
{
struct drm_device *dev = (struct drm_device *) arg;
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u16 temp;
u32 pipea_stats, pipeb_stats;
+ u32 iir;
pipea_stats = I915_READ(PIPEASTAT);
pipeb_stats = I915_READ(PIPEBSTAT);
- temp = I915_READ16(IIR);
-
- temp &= (I915_USER_INTERRUPT |
- I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT |
- I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT);
-
- DRM_DEBUG("%s flag=%08x\n", __FUNCTION__, temp);
-
- if (temp == 0)
+ if (dev->pdev->msi_enabled)
+ I915_WRITE(IMR, ~0);
+ iir = I915_READ(IIR);
+
+ DRM_DEBUG("iir=%08x\n", iir);
+
+ if (iir == 0) {
+ if (dev->pdev->msi_enabled) {
+ I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ (void) I915_READ(IMR);
+ }
return IRQ_NONE;
+ }
- I915_WRITE16(IIR, temp);
- (void) I915_READ16(IIR);
- DRM_READMEMORYBARRIER();
+ I915_WRITE(IIR, iir);
+ if (dev->pdev->msi_enabled)
+ I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ (void) I915_READ(IIR); /* Flush posted writes */
dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
- if (temp & I915_USER_INTERRUPT)
+ if (iir & I915_USER_INTERRUPT)
DRM_WAKEUP(&dev_priv->irq_queue);
- if (temp & (I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT |
- I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT)) {
+ if (iir & (I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT |
+ I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT)) {
int vblank_pipe = dev_priv->vblank_pipe;
if ((vblank_pipe &
(DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B))
== (DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B)) {
- if (temp & I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT)
+ if (iir & I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT)
atomic_inc(&dev->vbl_received);
- if (temp & I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT)
+ if (iir & I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT)
atomic_inc(&dev->vbl_received2);
- } else if (((temp & I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT) &&
+ } else if (((iir & I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT) &&
(vblank_pipe & DRM_I915_VBLANK_PIPE_A)) ||
- ((temp & I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT) &&
+ ((iir & I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT) &&
(vblank_pipe & DRM_I915_VBLANK_PIPE_B)))
atomic_inc(&dev->vbl_received);
@@ -314,6 +343,27 @@ static int i915_emit_irq(struct drm_devi
return dev_priv->counter;
}
+static void i915_user_irq_get(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+
+ spin_lock(&dev_priv->user_irq_lock);
+ if (dev->irq_enabled && (++dev_priv->user_irq_refcount == 1))
+ i915_enable_irq(dev_priv, I915_USER_INTERRUPT);
+ spin_unlock(&dev_priv->user_irq_lock);
+}
+
+static void i915_user_irq_put(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+
+ spin_lock(&dev_priv->user_irq_lock);
+ BUG_ON(dev->irq_enabled && dev_priv->user_irq_refcount <= 0);
+ if (dev->irq_enabled && (--dev_priv->user_irq_refcount == 0))
+ i915_disable_irq(dev_priv, I915_USER_INTERRUPT);
+ spin_unlock(&dev_priv->user_irq_lock);
+}
+
static int i915_wait_irq(struct drm_device * dev, int irq_nr)
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
@@ -322,13 +372,17 @@ static int i915_wait_irq(struct drm_devi
DRM_DEBUG("irq_nr=%d breadcrumb=%d\n", irq_nr,
READ_BREADCRUMB(dev_priv));
- if (READ_BREADCRUMB(dev_priv) >= irq_nr)
+ if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
+ dev_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
return 0;
+ }
dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
+ i915_user_irq_get(dev);
DRM_WAIT_ON(ret, dev_priv->irq_queue, 3 * DRM_HZ,
READ_BREADCRUMB(dev_priv) >= irq_nr);
+ i915_user_irq_put(dev);
if (ret == -EBUSY) {
DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
@@ -413,20 +467,6 @@ int i915_irq_wait(struct drm_device *dev
return i915_wait_irq(dev, irqwait->irq_seq);
}
-static void i915_enable_interrupt (struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- u16 flag;
-
- flag = 0;
- if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_A)
- flag |= I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT;
- if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_B)
- flag |= I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT;
-
- I915_WRITE16(IER, I915_USER_INTERRUPT | flag);
-}
-
/* Set the vblank monitor pipe
*/
int i915_vblank_pipe_set(struct drm_device *dev, void *data,
@@ -434,6 +474,7 @@ int i915_vblank_pipe_set(struct drm_devi
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_vblank_pipe_t *pipe = data;
+ u32 enable_mask = 0, disable_mask = 0;
if (!dev_priv) {
DRM_ERROR("called with no initialization\n");
@@ -445,9 +486,20 @@ int i915_vblank_pipe_set(struct drm_devi
return -EINVAL;
}
- dev_priv->vblank_pipe = pipe->pipe;
+ if (pipe->pipe & DRM_I915_VBLANK_PIPE_A)
+ enable_mask |= I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT;
+ else
+ disable_mask |= I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT;
+
+ if (pipe->pipe & DRM_I915_VBLANK_PIPE_B)
+ enable_mask |= I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT;
+ else
+ disable_mask |= I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT;
- i915_enable_interrupt (dev);
+ i915_enable_irq(dev_priv, enable_mask);
+ i915_disable_irq(dev_priv, disable_mask);
+
+ dev_priv->vblank_pipe = pipe->pipe;
return 0;
}
@@ -464,7 +516,7 @@ int i915_vblank_pipe_get(struct drm_devi
return -EINVAL;
}
- flag = I915_READ(IER);
+ flag = I915_READ(IMR);
pipe->pipe = 0;
if (flag & I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT)
pipe->pipe |= DRM_I915_VBLANK_PIPE_A;
@@ -586,9 +638,9 @@ void i915_driver_irq_preinstall(struct d
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
- I915_WRITE16(HWSTAM, 0xfffe);
- I915_WRITE16(IMR, 0x0);
- I915_WRITE16(IER, 0x0);
+ I915_WRITE(HWSTAM, 0xfffe);
+ I915_WRITE(IMR, 0x0);
+ I915_WRITE(IER, 0x0);
}
void i915_driver_irq_postinstall(struct drm_device * dev)
@@ -601,7 +653,18 @@ void i915_driver_irq_postinstall(struct
if (!dev_priv->vblank_pipe)
dev_priv->vblank_pipe = DRM_I915_VBLANK_PIPE_A;
- i915_enable_interrupt(dev);
+
+ /* Set initial unmasked IRQs to just the selected vblank pipes. */
+ dev_priv->irq_mask_reg = ~0;
+ if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_A)
+ dev_priv->irq_mask_reg &= ~I915_DISPLAY_PIPE_A_VBLANK_INTERRUPT;
+ if (dev_priv->vblank_pipe & DRM_I915_VBLANK_PIPE_B)
+ dev_priv->irq_mask_reg &= ~I915_DISPLAY_PIPE_B_VBLANK_INTERRUPT;
+
+ I915_WRITE(IMR, dev_priv->irq_mask_reg);
+ I915_WRITE(IER, I915_INTERRUPT_ENABLE_MASK);
+ (void) I915_READ(IER);
+
DRM_INIT_WAITQUEUE(&dev_priv->irq_queue);
}
@@ -613,10 +676,10 @@ void i915_driver_irq_uninstall(struct dr
if (!dev_priv)
return;
- I915_WRITE16(HWSTAM, 0xffff);
- I915_WRITE16(IMR, 0xffff);
- I915_WRITE16(IER, 0x0);
+ I915_WRITE(HWSTAM, 0xffff);
+ I915_WRITE(IMR, 0xffff);
+ I915_WRITE(IER, 0x0);
- temp = I915_READ16(IIR);
- I915_WRITE16(IIR, temp);
+ temp = I915_READ(IIR);
+ I915_WRITE(IIR, temp);
}

47
meta/packages/linux/linux-moblin2-2.6.27-rc1/0004_i915.Track_progress_inside_of_batchbuffers_for_determining_wedgedness.patch Normal file
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@ -0,0 +1,47 @@
From: Keith Packard <keithp@keithp.com>
Date: Wed, 30 Jul 2008 19:21:20 +0000 (-0700)
Subject: i915: Track progress inside of batchbuffers for determining wedgedness.
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=f0740db2246e4217384e8de32de6ebb4fbd807c9
i915: Track progress inside of batchbuffers for determining wedgedness.
This avoids early termination for long-running commands.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -40,11 +40,15 @@ int i915_wait_ring(struct drm_device * d
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
+ u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD;
+ u32 last_acthd = I915_READ(acthd_reg);
+ u32 acthd;
u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
int i;
- for (i = 0; i < 10000; i++) {
+ for (i = 0; i < 100000; i++) {
ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
+ acthd = I915_READ(acthd_reg);
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
ring->space += ring->Size;
@@ -55,8 +59,13 @@ int i915_wait_ring(struct drm_device * d
if (ring->head != last_head)
i = 0;
+ if (acthd != last_acthd)
+ i = 0;
last_head = ring->head;
+ last_acthd = acthd;
+ msleep_interruptible(10);
+
}
return -EBUSY;

59
meta/packages/linux/linux-moblin2-2.6.27-rc1/0005_i915.remove_settable_use_mi_batchbuffer_start.patch Normal file
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@ -0,0 +1,59 @@
From: Keith Packard <keithp@keithp.com>
Date: Wed, 30 Jul 2008 19:28:47 +0000 (-0700)
Subject: i915: remove settable use_mi_batchbuffer_start
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=6fcd9a69a91c53d733870df20e095eea2b73620c
i915: remove settable use_mi_batchbuffer_start
The driver can know what hardware requires MI_BATCH_BUFFER vs
MI_BATCH_BUFFER_START; there's no reason to let user mode configure this.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -159,13 +159,6 @@ static int i915_initialize(struct drm_de
dev_priv->current_page = 0;
dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
- /* We are using separate values as placeholders for mechanisms for
- * private backbuffer/depthbuffer usage.
- */
- dev_priv->use_mi_batchbuffer_start = 0;
- if (IS_I965G(dev)) /* 965 doesn't support older method */
- dev_priv->use_mi_batchbuffer_start = 1;
-
/* Allow hardware batchbuffers unless told otherwise.
*/
dev_priv->allow_batchbuffer = 1;
@@ -486,7 +479,7 @@ static int i915_dispatch_batchbuffer(str
return ret;
}
- if (dev_priv->use_mi_batchbuffer_start) {
+ if (!IS_I830(dev) && !IS_845G(dev)) {
BEGIN_LP_RING(2);
if (IS_I965G(dev)) {
OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
@@ -697,8 +690,6 @@ static int i915_setparam(struct drm_devi
switch (param->param) {
case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
- if (!IS_I965G(dev))
- dev_priv->use_mi_batchbuffer_start = param->value;
break;
case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
dev_priv->tex_lru_log_granularity = param->value;
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -99,7 +99,6 @@ typedef struct drm_i915_private {
int front_offset;
int current_page;
int page_flipping;
- int use_mi_batchbuffer_start;
wait_queue_head_t irq_queue;
atomic_t irq_received;

42
meta/packages/linux/linux-moblin2-2.6.27-rc1/0006_i915.Ignore_X_server_provided_mmio_address.patch Normal file
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@ -0,0 +1,42 @@
From: Keith Packard <keithp@keithp.com>
Date: Wed, 30 Jul 2008 19:36:08 +0000 (-0700)
Subject: i915: Ignore X server provided mmio address
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=5d34a0e06e6e70b01ee070094322695b9e3f0029
i915: Ignore X server provided mmio address
It is already correctly detected by the kernel for use in suspend/resume.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -121,13 +121,6 @@ static int i915_initialize(struct drm_de
return -EINVAL;
}
- dev_priv->mmio_map = drm_core_findmap(dev, init->mmio_offset);
- if (!dev_priv->mmio_map) {
- i915_dma_cleanup(dev);
- DRM_ERROR("can not find mmio map!\n");
- return -EINVAL;
- }
-
dev_priv->sarea_priv = (drm_i915_sarea_t *)
((u8 *) dev_priv->sarea->handle + init->sarea_priv_offset);
@@ -194,11 +187,6 @@ static int i915_dma_resume(struct drm_de
return -EINVAL;
}
- if (!dev_priv->mmio_map) {
- DRM_ERROR("can not find mmio map!\n");
- return -EINVAL;
- }
-
if (dev_priv->ring.map.handle == NULL) {
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");

138
meta/packages/linux/linux-moblin2-2.6.27-rc1/0007_i915.Initialize_hardware_status_page_at_device_load_when_possible.patch Normal file
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@ -0,0 +1,138 @@
From: Keith Packard <keithp@keithp.com>
Date: Wed, 30 Jul 2008 20:03:43 +0000 (-0700)
Subject: i915: Initialize hardware status page at device load when possible.
X-Git-Tag: v2.6.12-rc2
X-Git-Url: http://gitweb.freedesktop.org/?p=users/anholt/anholt/linux-2.6.git;a=commitdiff;h=ddb354254f88965f5f057e67ef775fbb4b35fef8
i915: Initialize hardware status page at device load when possible.
Some chips were unstable with repeated setup/teardown of the hardware status
page.
Signed-off-by: Eric Anholt <eric@anholt.net>
---
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -71,6 +71,52 @@ int i915_wait_ring(struct drm_device * d
return -EBUSY;
}
+/**
+ * Sets up the hardware status page for devices that need a physical address
+ * in the register.
+ */
+int i915_init_phys_hws(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ /* Program Hardware Status Page */
+ dev_priv->status_page_dmah =
+ drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
+
+ if (!dev_priv->status_page_dmah) {
+ DRM_ERROR("Can not allocate hardware status page\n");
+ return -ENOMEM;
+ }
+ dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
+ dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
+
+ memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
+
+ I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
+ DRM_DEBUG("Enabled hardware status page\n");
+ return 0;
+}
+
+/**
+ * Frees the hardware status page, whether it's a physical address or a virtual
+ * address set up by the X Server.
+ */
+void i915_free_hws(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ if (dev_priv->status_page_dmah) {
+ drm_pci_free(dev, dev_priv->status_page_dmah);
+ dev_priv->status_page_dmah = NULL;
+ }
+
+ if (dev_priv->status_gfx_addr) {
+ dev_priv->status_gfx_addr = 0;
+ drm_core_ioremapfree(&dev_priv->hws_map, dev);
+ }
+
+ /* Need to rewrite hardware status page */
+ I915_WRITE(HWS_PGA, 0x1ffff000);
+}
+
void i915_kernel_lost_context(struct drm_device * dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
@@ -103,18 +149,9 @@ static int i915_dma_cleanup(struct drm_d
dev_priv->ring.map.size = 0;
}
- if (dev_priv->status_page_dmah) {
- drm_pci_free(dev, dev_priv->status_page_dmah);
- dev_priv->status_page_dmah = NULL;
- /* Need to rewrite hardware status page */
- I915_WRITE(HWS_PGA, 0x1ffff000);
- }
-
- if (dev_priv->status_gfx_addr) {
- dev_priv->status_gfx_addr = 0;
- drm_core_ioremapfree(&dev_priv->hws_map, dev);
- I915_WRITE(HWS_PGA, 0x1ffff000);
- }
+ /* Clear the HWS virtual address at teardown */
+ if (I915_NEED_GFX_HWS(dev))
+ i915_free_hws(dev);
return 0;
}
@@ -165,23 +202,6 @@ static int i915_initialize(struct drm_de
*/
dev_priv->allow_batchbuffer = 1;
- /* Program Hardware Status Page */
- if (!I915_NEED_GFX_HWS(dev)) {
- dev_priv->status_page_dmah =
- drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
-
- if (!dev_priv->status_page_dmah) {
- i915_dma_cleanup(dev);
- DRM_ERROR("Can not allocate hardware status page\n");
- return -ENOMEM;
- }
- dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
- dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
-
- memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
- I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
- }
- DRM_DEBUG("Enabled hardware status page\n");
return 0;
}
@@ -773,6 +793,12 @@ int i915_driver_load(struct drm_device *
_DRM_KERNEL | _DRM_DRIVER,
&dev_priv->mmio_map);
+ /* Init HWS */
+ if (!I915_NEED_GFX_HWS(dev)) {
+ ret = i915_init_phys_hws(dev);
+ if (ret != 0)
+ return ret;
+ }
/* On the 945G/GM, the chipset reports the MSI capability on the
* integrated graphics even though the support isn't actually there
@@ -796,6 +822,8 @@ int i915_driver_unload(struct drm_device
if (dev->pdev->msi_enabled)
pci_disable_msi(dev->pdev);
+ i915_free_hws(dev);
+
if (dev_priv->mmio_map)
drm_rmmap(dev, dev_priv->mmio_map);

5453
meta/packages/linux/linux-moblin2-2.6.27-rc1/0008_drm.Add_GEM_graphics_execution_manager_to_i915_driver.patch Normal file
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6727
meta/packages/linux/linux-moblin2-2.6.27-rc1/0009-squashfs3.3-2.6.27.patch Normal file
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11320
meta/packages/linux/linux-moblin2-2.6.27-rc1/0010_unionfs-2.4_for_2.6.27-rc1.patch Normal file
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10
meta/packages/linux/linux-moblin2-2.6.27-rc1/0011_workaround_unidef_step.patch Normal file
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@ -0,0 +1,10 @@
--- linux.trees.git/include/linux/videodev2.h.org 2008-08-15 16:31:03.000000000 -0700
+++ linux.trees.git/include/linux/videodev2.h 2008-08-15 16:31:11.000000000 -0700
@@ -59,7 +59,6 @@
#include <linux/time.h> /* need struct timeval */
#include <linux/compiler.h> /* need __user */
#else
-#define __user
#include <sys/time.h>
#endif
#include <linux/ioctl.h>

153
meta/packages/linux/linux-moblin2-2.6.27-rc1/0012_intelfb_945gme.patch Normal file
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@ -0,0 +1,153 @@
The following patch adds support for Intel's 945GME graphics chip to
the intelfb driver. I have assumed that the 945GME is identical to the
already-supported 945GM apart from its PCI IDs; this is based on a quick
look at the X driver for these chips which seems to treat them
identically.
Signed-off-by: Phil Endecott <spam_from_intelfb@chezphil.org>
---
The 945GME is used in the ASUS Eee 901, and I coded this in the hope that
I'd be able to use it to get a console at the native 1024x600 resolution
which is not known to the BIOS. I realised too late that the intelfb
driver does not support mode changing on laptops, so it won't be any
use for me. But rather than throw it away I will post it here as
essentially "untested"; maybe someone who knows more about this driver,
and with more useful hardware to test on, can pick it up.
diff --git a/Documentation/fb/intelfb.txt b/Documentation/fb/intelfb.txt
index 27a3160..dd9e944 100644
--- a/Documentation/fb/intelfb.txt
+++ b/Documentation/fb/intelfb.txt
@@ -14,6 +14,7 @@ graphics devices. These would include:
Intel 915GM
Intel 945G
Intel 945GM
+ Intel 945GME
Intel 965G
Intel 965GM
diff --git a/drivers/video/intelfb/intelfb.h b/drivers/video/intelfb/intelfb.h
index 3325fbd..a50bea6 100644
--- a/drivers/video/intelfb/intelfb.h
+++ b/drivers/video/intelfb/intelfb.h
@@ -12,9 +12,9 @@
#endif
/*** Version/name ***/
-#define INTELFB_VERSION "0.9.5"
+#define INTELFB_VERSION "0.9.6"
#define INTELFB_MODULE_NAME "intelfb"
-#define SUPPORTED_CHIPSETS "830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/965G/965GM"
+#define SUPPORTED_CHIPSETS "830M/845G/852GM/855GM/865G/915G/915GM/945G/945GM/945GME/965G/965GM"
/*** Debug/feature defines ***/
@@ -58,6 +58,7 @@
#define PCI_DEVICE_ID_INTEL_915GM 0x2592
#define PCI_DEVICE_ID_INTEL_945G 0x2772
#define PCI_DEVICE_ID_INTEL_945GM 0x27A2
+#define PCI_DEVICE_ID_INTEL_945GME 0x27AE
#define PCI_DEVICE_ID_INTEL_965G 0x29A2
#define PCI_DEVICE_ID_INTEL_965GM 0x2A02
@@ -160,6 +161,7 @@ enum intel_chips {
INTEL_915GM,
INTEL_945G,
INTEL_945GM,
+ INTEL_945GME,
INTEL_965G,
INTEL_965GM,
};
@@ -363,6 +365,7 @@ struct intelfb_info {
((dinfo)->chipset == INTEL_915GM) || \
((dinfo)->chipset == INTEL_945G) || \
((dinfo)->chipset == INTEL_945GM) || \
+ ((dinfo)->chipset == INTEL_945GME) || \
((dinfo)->chipset == INTEL_965G) || \
((dinfo)->chipset == INTEL_965GM))
diff --git a/drivers/video/intelfb/intelfb_i2c.c b/drivers/video/intelfb/intelfb_i2c.c
index fcf9fad..5d896b8 100644
--- a/drivers/video/intelfb/intelfb_i2c.c
+++ b/drivers/video/intelfb/intelfb_i2c.c
@@ -171,6 +171,7 @@ void intelfb_create_i2c_busses(struct intelfb_info *dinfo)
/* has some LVDS + tv-out */
case INTEL_945G:
case INTEL_945GM:
+ case INTEL_945GME:
case INTEL_965G:
case INTEL_965GM:
/* SDVO ports have a single control bus - 2 devices */
diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index e44303f..a09e236 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -2,7 +2,7 @@
* intelfb
*
* Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/
- * 945G/945GM/965G/965GM integrated graphics chips.
+ * 945G/945GM/945GME/965G/965GM integrated graphics chips.
*
* Copyright © 2002, 2003 David Dawes <dawes@xfree86.org>
* 2004 Sylvain Meyer
@@ -102,6 +102,9 @@
*
* 04/2008 - Version 0.9.5
* Add support for 965G/965GM. (Maik Broemme <mbroemme@plusserver.de>)
+ *
+ * 08/2008 - Version 0.9.6
+ * Add support for 945GME. (Phil Endecott <spam_from_intelfb@chezphil.org>)
*/
#include <linux/module.h>
@@ -183,6 +186,7 @@ static struct pci_device_id intelfb_pci_table[] __devinitdata = {
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM },
{ 0, }
@@ -555,6 +559,7 @@ static int __devinit intelfb_pci_register(struct pci_dev *pdev,
(ent->device == PCI_DEVICE_ID_INTEL_915GM) ||
(ent->device == PCI_DEVICE_ID_INTEL_945G) ||
(ent->device == PCI_DEVICE_ID_INTEL_945GM) ||
+ (ent->device == PCI_DEVICE_ID_INTEL_945GME) ||
(ent->device == PCI_DEVICE_ID_INTEL_965G) ||
(ent->device == PCI_DEVICE_ID_INTEL_965GM)) {
diff --git a/drivers/video/intelfb/intelfbhw.c b/drivers/video/intelfb/intelfbhw.c
index 8e6d6a4..8b26b27 100644
--- a/drivers/video/intelfb/intelfbhw.c
+++ b/drivers/video/intelfb/intelfbhw.c
@@ -143,6 +143,12 @@ int intelfbhw_get_chipset(struct pci_dev *pdev, struct intelfb_info *dinfo)
dinfo->mobile = 1;
dinfo->pll_index = PLLS_I9xx;
return 0;
+ case PCI_DEVICE_ID_INTEL_945GME:
+ dinfo->name = "Intel(R) 945GME";
+ dinfo->chipset = INTEL_945GME;
+ dinfo->mobile = 1;
+ dinfo->pll_index = PLLS_I9xx;
+ return 0;
case PCI_DEVICE_ID_INTEL_965G:
dinfo->name = "Intel(R) 965G";
dinfo->chipset = INTEL_965G;
@@ -186,6 +192,7 @@ int intelfbhw_get_memory(struct pci_dev *pdev, int *aperture_size,
case PCI_DEVICE_ID_INTEL_915GM:
case PCI_DEVICE_ID_INTEL_945G:
case PCI_DEVICE_ID_INTEL_945GM:
+ case PCI_DEVICE_ID_INTEL_945GME:
case PCI_DEVICE_ID_INTEL_965G:
case PCI_DEVICE_ID_INTEL_965GM:
/* 915, 945 and 965 chipsets support a 256MB aperture.
--
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2322
meta/packages/linux/linux-moblin2-2.6.27-rc1/defconfig-eee901 Normal file
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18
meta/packages/linux/linux-moblin2.inc Normal file
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@ -0,0 +1,18 @@
DESCRIPTION = "2.6 Linux Development Kernel for moblin2 platforms"
SECTION = "kernel"
LICENSE = "GPL"
inherit kernel
do_configure() {
rm -f ${S}/.config || true
cp ${WORKDIR}/defconfig-${MACHINE} ${S}/.config
yes '' | oe_runmake oldconfig
}
COMPATIBLE_MACHINE = "eee901"

23
meta/packages/linux/linux-moblin2_2.6.27-rc1.bb Normal file
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@ -0,0 +1,23 @@
require linux-moblin2.inc
PR = "r0"
DEFAULT_PREFERENCE_eee901 = "1"
SRC_URI = "${KERNELORG_MIRROR}pub/linux/kernel/v2.6/linux-2.6.26.tar.bz2 \
${KERNELORG_MIRROR}pub/linux/kernel/v2.6/testing/patch-2.6.27-rc1.bz2;patch=1 \
file://0001_Export_shmem_file_setup_for_DRM-GEM.patch;patch=1 \
file://0002_i915.Use_more_consistent_names_for_regs.patch;patch=1 \
file://0003_i915.Add_support_for_MSI_and_interrupt_mitigation.patch;patch=1 \
file://0004_i915.Track_progress_inside_of_batchbuffers_for_determining_wedgedness.patch;patch=1 \
file://0005_i915.remove_settable_use_mi_batchbuffer_start.patch;patch=1 \
file://0006_i915.Ignore_X_server_provided_mmio_address.patch;patch=1 \
file://0007_i915.Initialize_hardware_status_page_at_device_load_when_possible.patch;patch=1 \
file://0008_drm.Add_GEM_graphics_execution_manager_to_i915_driver.patch;patch=1 \
file://0009-squashfs3.3-2.6.27.patch;patch=1 \
file://0010_unionfs-2.4_for_2.6.27-rc1.patch;patch=1 \
file://0011_workaround_unidef_step.patch;patch=1 \
file://0012_intelfb_945gme.patch;patch=1 \
file://defconfig-eee901"
S = "${WORKDIR}/linux-2.6.26"