Hello Sirs:
The following patch is based on 2.6.31 mainline kernel for the system hang
issue caused by 3D scaling + ACPI. The modified c files includes
1. via_dmablit.c
2. via_dma.c
3. via_drv.c
4. via_irq.c
5. via_map.c
6. via_mm.c
7. via_verifier.c
Signed-off-by: Bruce Chang<brucech...@via.com.tw>
diff -ruN old/drivers/gpu/drm/via/via_dmablit.c
new/drivers/gpu/drm/via/via_dmablit.c
--- old/drivers/gpu/drm/via/via_dmablit.c 2009-07-14 16:42:05.000000000
+0800
+++ new/drivers/gpu/drm/via/via_dmablit.c 2009-07-14 16:45:28.000000000
+0800
@@ -195,8 +195,10 @@
default:
vsg->state = dr_via_sg_init;
}
- vfree(vsg->bounce_buffer);
- vsg->bounce_buffer = NULL;
+ if (vsg->bounce_buffer) {
+ vfree(vsg->bounce_buffer);
+ vsg->bounce_buffer = NULL;
+ }
vsg->free_on_sequence = 0;
}
diff -ruN old/drivers/gpu/drm/via/via_dma.c new/drivers/gpu/drm/via/via_dma.c
--- old/drivers/gpu/drm/via/via_dma.c 2009-07-14 16:42:05.000000000 +0800
+++ new/drivers/gpu/drm/via/via_dma.c 2009-07-14 16:45:28.000000000 +0800
@@ -68,6 +68,15 @@
*vb++ = (w2); \
dev_priv->dma_low += 8;
+#define VIA_OUT_VIDEO_AGP_BUFFER(cmd1, cmd2) \
+ do { \
+ *cur_virtual++ = cmd1; \
+ *cur_virtual++ = cmd2; \
+ cmdbuf_info.cmd_size += 8; \
+ } while (0);
+
+static void via_cmdbuf_flush(struct drm_via_private *dev_priv,
+ uint32_t cmd_type);
static void via_cmdbuf_start(drm_via_private_t * dev_priv);
static void via_cmdbuf_pause(drm_via_private_t * dev_priv);
static void via_cmdbuf_reset(drm_via_private_t * dev_priv);
@@ -75,6 +84,7 @@
static int via_wait_idle(drm_via_private_t * dev_priv);
static void via_pad_cache(drm_via_private_t * dev_priv, int qwords);
+
/*
* Free space in command buffer.
*/
@@ -155,17 +165,34 @@
int via_dma_cleanup(struct drm_device * dev)
{
+ struct drm_via_video_save_head *pnode;
+ int i;
+
+ for (pnode = via_video_save_head; pnode; pnode =
+ (struct drm_via_video_save_head *)pnode->next)
+ memcpy(pnode->psystemmem, pnode->pvideomem, pnode->size);
if (dev->dev_private) {
drm_via_private_t *dev_priv =
(drm_via_private_t *) dev->dev_private;
if (dev_priv->ring.virtual_start) {
- via_cmdbuf_reset(dev_priv);
+ if (dev_priv->cr_status == CR_FOR_RINGBUFFER)
+ via_cmdbuf_flush(dev_priv, HC_HAGPBpID_STOP);
+
+ via_wait_idle(dev_priv);
drm_core_ioremapfree(&dev_priv->ring.map, dev);
dev_priv->ring.virtual_start = NULL;
}
+ for (i = 0; i < 3; i++) {
+ if (dev_priv->video_agp_address_map[i].handle &&
+ dev_priv->video_agp_address_map[i].size)
+ drm_core_ioremapfree(dev_priv->
+ video_agp_address_map+i, dev);
+ /*Fix for suspend reuse video buf*/
+ dev_priv->video_agp_address_map[i].handle = NULL;
+ }
}
return 0;
@@ -175,6 +202,7 @@
drm_via_private_t * dev_priv,
drm_via_dma_init_t * init)
{
+ struct drm_via_video_save_head *pnode;
if (!dev_priv || !dev_priv->mmio) {
DRM_ERROR("via_dma_init called before via_map_init\n");
return -EFAULT;
@@ -195,6 +223,9 @@
return -EINVAL;
}
+ for (pnode = via_video_save_head; pnode; pnode = pnode->next)
+ memcpy(pnode->pvideomem, pnode->psystemmem, pnode->size);
+
dev_priv->ring.map.offset = dev->agp->base + init->offset;
dev_priv->ring.map.size = init->size;
dev_priv->ring.map.type = 0;
@@ -224,6 +255,7 @@
via_cmdbuf_start(dev_priv);
+ dev_priv->cr_status = CR_FOR_RINGBUFFER;
return 0;
}
@@ -270,7 +302,6 @@
DRM_ERROR("called without initializing AGP ring buffer.\n");
return -EFAULT;
}
-
if (cmd->size > VIA_PCI_BUF_SIZE) {
return -ENOMEM;
}
@@ -289,14 +320,14 @@
cmd->size, dev, 1))) {
return ret;
}
-
vb = via_check_dma(dev_priv, (cmd->size < 0x100) ? 0x102 : cmd->size);
if (vb == NULL) {
return -EAGAIN;
}
-
memcpy(vb, dev_priv->pci_buf, cmd->size);
-
+ ret = DRM_COPY_FROM_USER(vb, cmd->buf, cmd->size);
+ if (ret)
+ return -EFAULT;
dev_priv->dma_low += cmd->size;
/*
@@ -332,12 +363,42 @@
static int via_cmdbuffer(struct drm_device *dev, void *data, struct drm_file
*file_priv)
{
drm_via_cmdbuffer_t *cmdbuf = data;
- int ret;
+ drm_via_private_t *dev_priv = dev->dev_private;
+ int ret = 0, count;
LOCK_TEST_WITH_RETURN(dev, file_priv);
DRM_DEBUG("buf %p size %lu\n", cmdbuf->buf, cmdbuf->size);
+ if (dev_priv->cr_status == CR_FOR_VIDEO) {
+ /* Because our driver will hook CR stop cmd behind video cmd,
+ * all we need to do here is to wait for CR idle,
+ * and initialize ring buffer.
+ */
+ count = 10000000;
+ while (count-- && (VIA_READ(VIA_REG_STATUS) &
+ VIA_CMD_RGTR_BUSY))
+ cpu_relax();
+ /* Seldom happen */
+ if (count < 0) {
+ DRM_INFO("The CR can't be idle from video agp cmd \
+ dispatch when it is needed by ring buffer \n");
+ return -1;
+ }
+ /* CR has been idle so that we need to initialize ring buffer */
+ dev_priv->dma_ptr = dev_priv->ring.virtual_start;
+ dev_priv->dma_low = 0;
+ dev_priv->dma_high = 0x1000000;
+ dev_priv->dma_wrap = 0x1000000;
+ dev_priv->dma_offset = 0x0;
+ dev_priv->last_pause_ptr = NULL;
+ dev_priv->hw_addr_ptr = dev_priv->mmio->handle + 0x418;
+
+ via_cmdbuf_start(dev_priv);
+
+ dev_priv->cr_status = CR_FOR_RINGBUFFER;
+
+ }
ret = via_dispatch_cmdbuffer(dev, cmdbuf);
if (ret) {
return ret;
@@ -346,6 +407,134 @@
return 0;
}
+int via_cmdbuffer_video_agp(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_via_private_t *dev_priv = dev->dev_private;
+ struct drm_via_video_agp_cmd cmdbuf_info;
+ int count;
+ u32 start_addr, start_addr_lo;
+ u32 end_addr, end_addr_lo;
+ u32 pause_addr, pause_addr_hi, pause_addr_lo;
+ u32 *cur_virtual;
+ u32 command;
+ int i = 0;
+ struct drm_local_map map;
+
+ LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+ /* Check whether CR services for ring buffer or for video engine. */
+ if (dev_priv->cr_status == CR_FOR_RINGBUFFER) {
+ /* Here we need to hook stop cmd in tail of ringbuffer
+ * in order to stop CR, for we will reset start/end/pause
+ * address for fetch cmd from video AGP buffer
+ */
+ via_cmdbuf_flush(dev_priv, HC_HAGPBpID_STOP);
+ }
+
+ /* Set CR status here to avoid ring buffer crush in case we
+ * can't initialize CR for video properly
+ */
+ dev_priv->cr_status = CR_FOR_VIDEO;
+
+ /* Wait idle since we will reset CR relevant registers. */
+ count = 10000000;
+ while (count-- && (VIA_READ(VIA_REG_STATUS) & VIA_CMD_RGTR_BUSY))
+ cpu_relax();
+
+ /* Seldom happen */
+ if (count < 0) {
+ DRM_INFO("The CR can't be idle from video agp cmd dispatch \
+ when it is needed by ring buffer \n");
+ return -1;
+ }
+
+ /* Till here, the CR has been idle, all need to here is to initialize
+ * CR START/END/PAUSE address registers according to video AGP buffer
+ * location and size. BE LUCKY!!!
+ */
+ cmdbuf_info = *(struct drm_via_video_agp_cmd *)data;
+
+ start_addr = cmdbuf_info.offset + dev->agp->base;
+ end_addr = cmdbuf_info.buffer_size + start_addr;
+
+ if ((cmdbuf_info.buffer_size & 0xFF) ||
+ (start_addr + 2 * 0xFF > end_addr) ||
+ start_addr & 0xFF) {
+ DRM_INFO("The video cmd is too large or you didn't set the \
+ video cmd 2 DWORD alignment. \n");
+ return -1;
+ }
+
+ map.offset = start_addr;
+ map.size = cmdbuf_info.buffer_size;
+ map.type = map.flags = map.mtrr = 0;
+ map.handle = 0;
+
+ for (i = 0; i < 3; i++) {
+ if ((dev_priv->video_agp_address_map[i].offset == map.offset) &&
+ (dev_priv->video_agp_address_map[i].size == map.size) &&
+ dev_priv->video_agp_address_map[i].handle) {
+ map.handle = dev_priv->video_agp_address_map[i].handle;
+ break;
+ }
+ if (!dev_priv->video_agp_address_map[i].handle)
+ break;
+ }
+
+ /* Check whether this agp cmd buffer has already been remaped before */
+ /* case: Never be remaped before */
+ if (!map.handle) {
+ drm_core_ioremap(&map, dev);
+ if (!map.handle)
+ return -1;
+ /* there is a free hole for filling in this address map */
+ if (i < 3)
+ dev_priv->video_agp_address_map[i] = map;
+ else {
+ drm_core_ioremapfree(dev_priv->video_agp_address_map,
+ dev);
+ dev_priv->video_agp_address_map[0] = map;
+ }
+ }
+
+ cur_virtual = map.handle + cmdbuf_info.cmd_size;
+
+ VIA_OUT_VIDEO_AGP_BUFFER(HC_HEADER2 | ((VIA_REG_TRANSET >> 2) << 12) |
+ (VIA_REG_TRANSPACE >> 2), HC_ParaType_PreCR << 16);
+
+ /* pause register need 0xFF alignment */
+ do {
+ VIA_OUT_VIDEO_AGP_BUFFER(HC_DUMMY, HC_DUMMY);
+ } while (cmdbuf_info.cmd_size & 0xFF);
+ pause_addr = cmdbuf_info.cmd_size + start_addr - 8;
+
+ pause_addr_lo = ((HC_SubA_HAGPBpL << 24) | HC_HAGPBpID_STOP |
+ (pause_addr & HC_HAGPBpL_MASK));
+ pause_addr_hi = ((HC_SubA_HAGPBpH << 24) | (pause_addr >> 24));
+ start_addr_lo = ((HC_SubA_HAGPBstL << 24) | (start_addr & 0xFFFFFF));
+ end_addr_lo = ((HC_SubA_HAGPBendL << 24) | (end_addr & 0xFFFFFF));
+ command = ((HC_SubA_HAGPCMNT << 24) | (start_addr >> 24) |
+ ((end_addr & 0xff000000) >> 16));
+ *(cur_virtual-2) = pause_addr_hi;
+ *(cur_virtual-1) = pause_addr_lo;
+
+ via_flush_write_combine();
+
+ VIA_WRITE(VIA_REG_TRANSET, (HC_ParaType_PreCR << 16));
+ VIA_WRITE(VIA_REG_TRANSPACE, command);
+ VIA_WRITE(VIA_REG_TRANSPACE, start_addr_lo);
+ VIA_WRITE(VIA_REG_TRANSPACE, end_addr_lo);
+
+ VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_hi);
+ VIA_WRITE(VIA_REG_TRANSPACE, pause_addr_lo);
+ DRM_WRITEMEMORYBARRIER();
+ /* fire */
+ VIA_WRITE(VIA_REG_TRANSPACE, command | HC_HAGPCMNT_MASK);
+
+ return 0;
+}
+
static int via_dispatch_pci_cmdbuffer(struct drm_device * dev,
drm_via_cmdbuffer_t * cmd)
{
@@ -357,7 +546,6 @@
}
if (DRM_COPY_FROM_USER(dev_priv->pci_buf, cmd->buf, cmd->size))
return -EFAULT;
-
if ((ret =
via_verify_command_stream((uint32_t *) dev_priv->pci_buf,
cmd->size, dev, 0))) {
@@ -481,13 +669,13 @@
{
int count = 10000000;
- while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && --count)
+ while (!(VIA_READ(VIA_REG_STATUS) & VIA_VR_QUEUE_BUSY) && count--)
;
- while (count && (VIA_READ(VIA_REG_STATUS) &
+ while (count-- && (VIA_READ(VIA_REG_STATUS) &
(VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY |
VIA_3D_ENG_BUSY)))
- --count;
+ ;
return count;
}
@@ -707,7 +895,7 @@
switch (d_siz->func) {
case VIA_CMDBUF_SPACE:
while (((tmp_size = via_cmdbuf_space(dev_priv)) < d_siz->size)
- && --count) {
+ && count--) {
if (!d_siz->wait) {
break;
}
@@ -719,7 +907,7 @@
break;
case VIA_CMDBUF_LAG:
while (((tmp_size = via_cmdbuf_lag(dev_priv)) > d_siz->size)
- && --count) {
+ && count--) {
if (!d_siz->wait) {
break;
}
@@ -737,6 +925,149 @@
return ret;
}
+/*The following functions are for ACPI*/
+
+static void initialize3Dengine(drm_via_private_t *dev_priv)
+{
+ int i = 0;
+
+ VIA_WRITE(0x43C, 0x00010000);
+
+ for (i = 0; i <= 0x7D; i++)
+ VIA_WRITE(0x440, (unsigned long) i << 24);
+
+ VIA_WRITE(0x43C, 0x00020000);
+
+ for (i = 0; i <= 0x94; i++)
+ VIA_WRITE(0x440, (unsigned long) i << 24);
+
+ VIA_WRITE(0x440, 0x82400000);
+ VIA_WRITE(0x43C, 0x01020000);
+
+ for (i = 0; i <= 0x94; i++)
+ VIA_WRITE(0x440, (unsigned long) i << 24);
+
+ VIA_WRITE(0x440, 0x82400000);
+ VIA_WRITE(0x43C, 0xfe020000);
+
+ for (i = 0; i <= 0x03; i++)
+ VIA_WRITE(0x440, (unsigned long) i << 24);
+
+ VIA_WRITE(0x43C, 0x00030000);
+
+ for (i = 0; i <= 0xff; i++)
+ VIA_WRITE(0x440, 0);
+
+ VIA_WRITE(0x43C, 0x00100000);
+ VIA_WRITE(0x440, 0x00333004);
+ VIA_WRITE(0x440, 0x10000002);
+ VIA_WRITE(0x440, 0x60000000);
+ VIA_WRITE(0x440, 0x61000000);
+ VIA_WRITE(0x440, 0x62000000);
+ VIA_WRITE(0x440, 0x63000000);
+ VIA_WRITE(0x440, 0x64000000);
+
+ VIA_WRITE(0x43C, 0x00fe0000);
+ VIA_WRITE(0x440, 0x40008c0f);
+ VIA_WRITE(0x440, 0x44000000);
+ VIA_WRITE(0x440, 0x45080C04);
+ VIA_WRITE(0x440, 0x46800408);
+ VIA_WRITE(0x440, 0x50000000);
+ VIA_WRITE(0x440, 0x51000000);
+ VIA_WRITE(0x440, 0x52000000);
+ VIA_WRITE(0x440, 0x53000000);
+
+
+ VIA_WRITE(0x43C, 0x00fe0000);
+ VIA_WRITE(0x440, 0x08000001);
+ VIA_WRITE(0x440, 0x0A000183);
+ VIA_WRITE(0x440, 0x0B00019F);
+ VIA_WRITE(0x440, 0x0C00018B);
+ VIA_WRITE(0x440, 0x0D00019B);
+ VIA_WRITE(0x440, 0x0E000000);
+ VIA_WRITE(0x440, 0x0F000000);
+ VIA_WRITE(0x440, 0x10000000);
+ VIA_WRITE(0x440, 0x11000000);
+ VIA_WRITE(0x440, 0x20000000);
+}
+/* For acpi case, when system resume from suspend or hibernate,
+ * need to re-initialize dma info into HW
+ */
+int via_drm_resume(struct pci_dev *pci)
+{
+ struct drm_device *dev = (struct drm_device *)pci_get_drvdata(pci);
+ drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
+ struct drm_via_video_save_head *pnode = 0;
+
+ pci_restore_state(pci);
+
+ if (!dev_priv->initialize)
+ return 0;
+ /* when resume, initialize 3d registers */
+ initialize3Dengine(dev_priv);
+
+ /* here we need to restore some video memory content */
+ for (pnode = via_video_save_head; pnode; pnode = pnode->next)
+ memcpy(pnode->pvideomem, pnode->psystemmem, pnode->size);
+
+ /* if pci path, return */
+ if (!dev_priv->ring.virtual_start)
+ return 0;
+
+ dev_priv->dma_ptr = dev_priv->ring.virtual_start;
+ dev_priv->dma_low = 0;
+ dev_priv->dma_high = 0x1000000;
+ dev_priv->dma_wrap = 0x1000000;
+ dev_priv->dma_offset = 0x0;
+ dev_priv->last_pause_ptr = NULL;
+ dev_priv->hw_addr_ptr = dev_priv->mmio->handle + 0x418;
+
+ via_cmdbuf_start(dev_priv);
+
+ return 0;
+}
+
+int via_drm_suspend(struct pci_dev *pci, pm_message_t state)
+{
+ struct drm_device *dev = (struct drm_device *)pci_get_drvdata(pci);
+ drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
+
+ struct drm_via_video_save_head *pnode = 0;
+
+ pci_save_state(pci);
+
+ if (!dev_priv->initialize)
+ return 0;
+ /*here we need to save some video mem information into system memory,
+ to keep the system consistent between suspend *before* and *after*
+ 1.save only necessary */
+ for (pnode = via_video_save_head; pnode;
+ pnode = (struct drm_via_video_save_head *)pnode->next)
+ memcpy(pnode->psystemmem, pnode->pvideomem, pnode->size);
+
+ /* Only agp path need to flush the cmd */
+ if (dev_priv->ring.virtual_start)
+ via_cmdbuf_reset(dev_priv);
+
+ return 0;
+}
+int via_drm_authmagic(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ return 0;
+}
+
+int via_drm_init_judge(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_via_private *dev_priv = dev->dev_private;
+
+ if (dev_priv->initialize)
+ *(int *)data = 1;
+ else
+ *(int *)data = -1;
+ return 0;
+}
struct drm_ioctl_desc via_ioctls[] = {
DRM_IOCTL_DEF(DRM_VIA_ALLOCMEM, via_mem_alloc, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_FREEMEM, via_mem_free, DRM_AUTH),
@@ -744,6 +1075,7 @@
DRM_IOCTL_DEF(DRM_VIA_FB_INIT, via_fb_init, DRM_AUTH|DRM_MASTER),
DRM_IOCTL_DEF(DRM_VIA_MAP_INIT, via_map_init, DRM_AUTH|DRM_MASTER),
DRM_IOCTL_DEF(DRM_VIA_DEC_FUTEX, via_decoder_futex, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_VIA_GET_INFO, via_get_drm_info, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_DMA_INIT, via_dma_init, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_CMDBUFFER, via_cmdbuffer, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_FLUSH, via_flush_ioctl, DRM_AUTH),
@@ -751,7 +1083,10 @@
DRM_IOCTL_DEF(DRM_VIA_CMDBUF_SIZE, via_cmdbuf_size, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_WAIT_IRQ, via_wait_irq, DRM_AUTH),
DRM_IOCTL_DEF(DRM_VIA_DMA_BLIT, via_dma_blit, DRM_AUTH),
- DRM_IOCTL_DEF(DRM_VIA_BLIT_SYNC, via_dma_blit_sync, DRM_AUTH)
+ DRM_IOCTL_DEF(DRM_VIA_BLIT_SYNC, via_dma_blit_sync, DRM_AUTH),
+ DRM_IOCTL_DEF(DRM_VIA_AUTH_MAGIC, via_drm_authmagic, 0),
+ DRM_IOCTL_DEF(DRM_VIA_FLUSH_VIDEO, via_cmdbuffer_video_agp, 0),
+ DRM_IOCTL_DEF(DRM_VIA_INIT_JUDGE, via_drm_init_judge, 0)
};
int via_max_ioctl = DRM_ARRAY_SIZE(via_ioctls);
diff -ruN old/drivers/gpu/drm/via/via_drv.c new/drivers/gpu/drm/via/via_drv.c
--- old/drivers/gpu/drm/via/via_drv.c 2009-07-14 16:42:05.000000000 +0800
+++ new/drivers/gpu/drm/via/via_drv.c 2009-07-14 16:45:28.000000000 +0800
@@ -32,10 +32,16 @@
viadrv_PCI_IDS
};
+int via_driver_open(struct drm_device *dev, struct drm_file *priv)
+{
+ priv->authenticated = 1;
+ return 0;
+}
static struct drm_driver driver = {
.driver_features =
DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
DRIVER_IRQ_SHARED,
+ .open = via_driver_open,
.load = via_driver_load,
.unload = via_driver_unload,
.context_dtor = via_final_context,
@@ -66,6 +72,8 @@
.pci_driver = {
.name = DRIVER_NAME,
.id_table = pciidlist,
+ .suspend = via_drm_suspend,
+ .resume = via_drm_resume,
},
.name = DRIVER_NAME,
@@ -80,6 +88,7 @@
{
driver.num_ioctls = via_max_ioctl;
via_init_command_verifier();
+ DRM_INFO("via verify function enabled.\n");
return drm_init(&driver);
}
diff -ruN old/drivers/gpu/drm/via/via_irq.c new/drivers/gpu/drm/via/via_irq.c
--- old/drivers/gpu/drm/via/via_irq.c 2009-07-14 16:42:05.000000000 +0800
+++ new/drivers/gpu/drm/via/via_irq.c 2009-07-14 16:45:28.000000000 +0800
@@ -357,6 +357,8 @@
drm_via_irq_t *cur_irq = dev_priv->via_irqs;
int force_sequence;
+ if (!dev->pdev->irq)
+ return -EINVAL;
if (irqwait->request.irq >= dev_priv->num_irqs) {
DRM_ERROR("Trying to wait on unknown irq %d\n",
irqwait->request.irq);
diff -ruN old/drivers/gpu/drm/via/via_map.c new/drivers/gpu/drm/via/via_map.c
--- old/drivers/gpu/drm/via/via_map.c 2009-07-14 16:42:05.000000000 +0800
+++ new/drivers/gpu/drm/via/via_map.c 2009-07-14 17:17:34.000000000 +0800
@@ -25,6 +25,7 @@
#include "via_drm.h"
#include "via_drv.h"
+static int associate;
static int via_do_init_map(struct drm_device * dev, drm_via_init_t * init)
{
drm_via_private_t *dev_priv = dev->dev_private;
@@ -65,12 +66,35 @@
via_init_dmablit(dev);
dev->dev_private = (void *)dev_priv;
+
+ /* from doing this, we has the stuff in prev data
+ * structure to manage agp
+ */
+ if (init->agp_type != DISABLED) {
+ dev->agp_buffer_map = drm_core_findmap(dev, init->agp_offset);
+ if (!dev->agp_buffer_map) {
+ DRM_ERROR("failed to find dma buffer region!\n");
+ return -EINVAL;
+ }
+ if (init->agp_type == AGP_DOUBLE_BUFFER)
+ dev_priv->agptype = AGP_DOUBLE_BUFFER;
+ if (init->agp_type == AGP_RING_BUFFER)
+ dev_priv->agptype = AGP_RING_BUFFER;
+ } else {
+ dev_priv->agptype = DISABLED;
+ dev->agp_buffer_map = 0;
+ }
+ /* end */
+ dev_priv->initialize = 1;
+
return 0;
}
int via_do_cleanup_map(struct drm_device * dev)
{
+ drm_via_private_t *dev_priv = dev->dev_private;
via_dma_cleanup(dev);
+ dev_priv->initialize = 0;
return 0;
}
@@ -95,6 +119,11 @@
{
drm_via_private_t *dev_priv;
int ret = 0;
+ if (!associate) {
+ pci_set_drvdata(dev->pdev, dev);
+ dev->pdev->driver = &dev->driver->pci_driver;
+ associate = 1;
+ }
dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
if (dev_priv == NULL)
@@ -106,14 +135,14 @@
ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
if (ret) {
- kfree(dev_priv);
+ dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
return ret;
}
ret = drm_vblank_init(dev, 1);
if (ret) {
drm_sman_takedown(&dev_priv->sman);
- kfree(dev_priv);
+ dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
return ret;
}
@@ -126,7 +155,23 @@
drm_sman_takedown(&dev_priv->sman);
- kfree(dev_priv);
+ dev_priv = kzalloc(sizeof(drm_via_private_t), GFP_KERNEL);
+
+ return 0;
+}
+int via_get_drm_info(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ drm_via_private_t *dev_priv = (drm_via_private_t *)dev->dev_private;
+ struct drm_via_info *info = data;
+
+ if (!dev_priv->initialize)
+ return -EINVAL;
+
+ info->RegSize = dev_priv->mmio->size;
+ info->AgpSize = dev->agp_buffer_map->size;
+ info->RegHandle = dev_priv->mmio->offset;
+ info->AgpHandle = dev->agp_buffer_map->offset;
return 0;
}
diff -ruN old/drivers/gpu/drm/via/via_mm.c new/drivers/gpu/drm/via/via_mm.c
--- old/drivers/gpu/drm/via/via_mm.c 2009-07-14 16:42:05.000000000 +0800
+++ new/drivers/gpu/drm/via/via_mm.c 2009-07-14 16:45:28.000000000 +0800
@@ -30,6 +30,7 @@
#include "via_drv.h"
#include "drm_sman.h"
+struct drm_via_video_save_head *via_video_save_head;
#define VIA_MM_ALIGN_SHIFT 4
#define VIA_MM_ALIGN_MASK ( (1 << VIA_MM_ALIGN_SHIFT) - 1)
@@ -56,6 +57,8 @@
DRM_DEBUG("offset = %u, size = %u\n", agp->offset, agp->size);
return 0;
}
+static void *global_dev;
+static void *global_file_priv;
int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
{
@@ -78,6 +81,8 @@
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("offset = %u, size = %u\n", fb->offset, fb->size);
+ global_dev = dev;
+ global_file_priv = file_priv;
return 0;
@@ -86,6 +91,17 @@
int via_final_context(struct drm_device *dev, int context)
{
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
+ struct drm_ctx_list *pos, *n;
+ bool context_valid = 0;
+
+ list_for_each_entry_safe(pos, n, &dev->ctxlist, head)
+ if (pos->handle == context) {
+ context_valid = 1;
+ break;
+ }
+
+ if (!context_valid)
+ return 0;
via_release_futex(dev_priv, context);
@@ -93,7 +109,8 @@
/* Last context, perform cleanup */
if (dev->ctx_count == 1 && dev->dev_private) {
DRM_DEBUG("Last Context\n");
- drm_irq_uninstall(dev);
+ if (dev->pdev->irq)
+ drm_irq_uninstall(dev);
via_cleanup_futex(dev_priv);
via_do_cleanup_map(dev);
}
@@ -114,6 +131,84 @@
mutex_unlock(&dev->struct_mutex);
}
+static int via_videomem_presave_ok(drm_via_private_t *dev_priv,
+ drm_via_mem_t *mem)
+{
+ void *pvideomem = 0, *psystemmem = 0;
+ struct drm_via_video_save_head *pnode = 0;
+
+ if (!mem || !mem->size || (mem->type != VIA_MEM_VIDEO_SAVE))
+ return 0;
+
+ /* here the mem->offset is the absolute address,
+ * not the offset within videomem
+ */
+ pvideomem = (void *)ioremap(dev_priv->fb->offset + mem->offset,
+ mem->size);
+ if (!pvideomem)
+ return 0;
+
+ psystemmem = kmalloc(mem->size, GFP_KERNEL);
+ if (!psystemmem) {
+ iounmap(pvideomem);
+ return 0;
+ }
+
+ /* map success, then save this information into
+ * a data structure for later saving usage
+ */
+ pnode = kmalloc(
+ sizeof(struct drm_via_video_save_head), GFP_KERNEL);
+ if (!pnode) {
+ iounmap(pvideomem);
+ kfree(psystemmem);
+ return 0;
+ }
+
+ pnode->next = 0;
+ pnode->psystemmem = psystemmem;
+ pnode->pvideomem = pvideomem;
+ pnode->size = mem->size;
+ pnode->token = mem->offset;
+
+ /* insert this node into list */
+ if (!via_video_save_head) {
+ via_video_save_head = pnode;
+ } else {
+ pnode->next = via_video_save_head;
+ via_video_save_head = pnode;
+ }
+
+ return 1;
+}
+
+static int via_videomem_housekeep_ok(drm_via_mem_t *mem)
+{
+ struct drm_via_video_save_head **ppnode = 0;
+ struct drm_via_video_save_head *tmpnode = 0;
+ /* if this mem's token match with one node of the list */
+ for (ppnode = &via_video_save_head; *ppnode;
+ ppnode = (struct drm_via_video_save_head **)(&((*ppnode)->next))) {
+ if ((*ppnode)->token == mem->offset)
+ break;
+ }
+
+ if (*ppnode == 0) {
+ /* not found, the user may specify the wrong mem node to free */
+ return 0;
+ }
+
+ /* delete this node from the list and then
+ *free all the mem to avoid memory leak
+ */
+ tmpnode = *ppnode;
+ *ppnode = (*ppnode)->next;
+ iounmap(tmpnode->pvideomem);
+ kfree(tmpnode->psystemmem);
+ kfree(tmpnode);
+
+ return 1;
+}
int via_mem_alloc(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
@@ -123,12 +218,13 @@
drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
unsigned long tmpSize;
- if (mem->type > VIA_MEM_AGP) {
+ if (mem->type > VIA_MEM_VIDEO_SAVE) {
DRM_ERROR("Unknown memory type allocation\n");
return -EINVAL;
}
mutex_lock(&dev->struct_mutex);
- if (0 == ((mem->type == VIA_MEM_VIDEO) ? dev_priv->vram_initialized :
+ if (0 == ((mem->type == VIA_MEM_VIDEO ||
+ mem->type == VIA_MEM_VIDEO_SAVE) ? dev_priv->vram_initialized :
dev_priv->agp_initialized)) {
DRM_ERROR
("Attempt to allocate from uninitialized memory
manager.\n");
@@ -137,15 +233,25 @@
}
tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
- item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0,
- (unsigned long)file_priv);
+ item = drm_sman_alloc(&dev_priv->sman,
+ (mem->type == VIA_MEM_VIDEO_SAVE ? VIA_MEM_VIDEO : mem->type),
+ tmpSize, 0, (unsigned long)file_priv);
mutex_unlock(&dev->struct_mutex);
if (item) {
- mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
- dev_priv->vram_offset : dev_priv->agp_offset) +
- (item->mm->
- offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
+ mem->offset = ((mem->type == VIA_MEM_VIDEO ||
+ mem->type == VIA_MEM_VIDEO_SAVE) ?
+ dev_priv->vram_offset : dev_priv->agp_offset) +
+ (item->mm->offset(item->mm, item->mm_info) <<
+ VIA_MM_ALIGN_SHIFT);
mem->index = item->user_hash.key;
+ if (mem->type == VIA_MEM_VIDEO_SAVE) {
+ if (!via_videomem_presave_ok(dev_priv, mem)) {
+ mutex_lock(&dev->struct_mutex);
+ drm_sman_free_key(&dev_priv->sman, mem->index);
+ mutex_unlock(&dev->struct_mutex);
+ retval = -ENOMEM;
+ }
+ }
} else {
mem->offset = 0;
mem->size = 0;
@@ -165,6 +271,10 @@
mutex_lock(&dev->struct_mutex);
ret = drm_sman_free_key(&dev_priv->sman, mem->index);
+ if (mem->type == VIA_MEM_VIDEO_SAVE) {
+ if (!via_videomem_housekeep_ok(mem))
+ ret = -EINVAL;
+ }
mutex_unlock(&dev->struct_mutex);
DRM_DEBUG("free = 0x%lx\n", mem->index);
@@ -191,3 +301,26 @@
mutex_unlock(&dev->struct_mutex);
return;
}
+static int via_fb_alloc(drm_via_mem_t *mem)
+{
+ struct drm_device *dev = global_dev;
+ struct drm_file *file_priv = global_file_priv;
+
+ if (dev && file_priv)
+ return via_mem_alloc(dev, mem, file_priv);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL(via_fb_alloc);
+
+static int via_fb_free(drm_via_mem_t *mem)
+{
+ struct drm_device *dev = global_dev;
+ struct drm_file *file_priv = global_file_priv;
+
+ if (dev && file_priv)
+ return via_mem_free(dev, mem, file_priv);
+ else
+ return -EINVAL;
+}
+EXPORT_SYMBOL(via_fb_free);
diff -ruN old/drivers/gpu/drm/via/via_verifier.c
new/drivers/gpu/drm/via/via_verifier.c
--- old/drivers/gpu/drm/via/via_verifier.c 2009-07-14 16:42:05.000000000
+0800
+++ new/drivers/gpu/drm/via/via_verifier.c 2009-07-14 16:45:28.000000000
+0800
@@ -41,6 +41,8 @@
state_header1,
state_vheader5,
state_vheader6,
+ state_header3,
+ state_header4,
state_error
} verifier_state_t;
@@ -227,7 +229,10 @@
{0xf2, check_for_header2_err},
{0xf0, check_for_header1_err},
{0xcc, check_for_dummy},
- {0x00, check_number_texunits}
+ {0x00, check_number_texunits},
+ {0x01, no_check},
+ {0x02, no_check},
+ {0x03, no_check}
};
static hazard_t table1[256];
@@ -768,11 +773,15 @@
DRM_ERROR("Invalid VIDEO DMA command. "
"Attempt to access 3D- or command burst area.\n");
return 1;
+ } else if ((0x1260 == address) || (0x126c == address)) {
+ /*For CR sync cmd, adjust for XV*/
+ return 0;
} else if ((address > 0xCFF) && (address < 0x1300)) {
DRM_ERROR("Invalid VIDEO DMA command. "
"Attempt to access PCI DMA area.\n");
return 1;
- } else if (address > 0x13FF) {
+ } else if ((address > 0x13FF) && (address < 0x2000)) {
+ /*Adjust for XV, VQ path*/
DRM_ERROR("Invalid VIDEO DMA command. "
"Attempt to access VGA registers.\n");
return 1;
@@ -792,8 +801,13 @@
}
while (dwords--) {
if (*buf++) {
+#if 0
DRM_ERROR("Illegal video command tail.\n");
return 1;
+#else
+ if (is_agp_header(*buf))
+ break;
+#endif
}
}
*buffer = buf;
@@ -1001,6 +1015,14 @@
case state_vheader6:
state = via_check_vheader6(&buf, buf_end);
break;
+ case state_header3:
+ case state_header4:
+ buf++;
+ while (buf < buf_end && !is_agp_header(*buf))
+ buf++;
+ state = state_command;
+ break;
+
case state_command:
if ((HALCYON_HEADER2 == (cmd = *buf)) &&
supported_3d)
@@ -1016,7 +1038,12 @@
else if ((cmd == HALCYON_HEADER2) && !supported_3d) {
DRM_ERROR("Accelerated 3D is not supported on
this chipset yet.\n");
state = state_error;
- } else {
+ } else if ((cmd & HALCYON_HEADER_MASK) ==
+ HALCYON_HEADER3)
+ state = state_header3;
+ else if ((cmd & HALCYON_HEADER_MASK) == HALCYON_HEADER4)
+ state = state_header4;
+ else {
DRM_ERROR
("Invalid / Unimplemented DMA HEADER
command. 0x%x\n",
cmd);
Thanks and Best Regards
=================================================
Bruce C. Chang(張祖明)
VIA Technologies, Inc.
Address: 1F, 531, Chung-Cheng Road, Hsin-Tien, 231 Taipei
Tel: +886-2-22185452 Ext 7323
Mobile: +886-968343824
Fax: +886-2-22186282
Skype: Bruce.C.Chang
Email: brucech...@via.com.tw
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