#include <linux/vga_switcheroo.h>
#include <linux/slab.h>
-/* Really want an OS-independent resettable timer. Would like to have
- * this loop run for (eg) 3 sec, but have the timer reset every time
- * the head pointer changes, so that EBUSY only happens if the ring
- * actually stalls for (eg) 3 seconds.
- */
-int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
-{
- 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;
-
- trace_i915_ring_wait_begin (dev);
-
- 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;
- if (ring->space >= n) {
- trace_i915_ring_wait_end (dev);
- return 0;
- }
-
- if (dev->primary->master) {
- struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
- if (master_priv->sarea_priv)
- master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
- }
-
-
- if (ring->head != last_head)
- i = 0;
- if (acthd != last_acthd)
- i = 0;
-
- last_head = ring->head;
- last_acthd = acthd;
- msleep_interruptible(10);
-
- }
-
- trace_i915_ring_wait_end (dev);
- return -EBUSY;
-}
-
-/* As a ringbuffer is only allowed to wrap between instructions, fill
- * the tail with NOOPs.
- */
-int i915_wrap_ring(struct drm_device *dev)
-{
- drm_i915_private_t *dev_priv = dev->dev_private;
- volatile unsigned int *virt;
- int rem;
-
- rem = dev_priv->ring.Size - dev_priv->ring.tail;
- if (dev_priv->ring.space < rem) {
- int ret = i915_wait_ring(dev, rem, __func__);
- if (ret)
- return ret;
- }
- dev_priv->ring.space -= rem;
-
- virt = (unsigned int *)
- (dev_priv->ring.virtual_start + dev_priv->ring.tail);
- rem /= 4;
- while (rem--)
- *virt++ = MI_NOOP;
-
- dev_priv->ring.tail = 0;
-
- return 0;
-}
-
/**
* Sets up the hardware status page for devices that need a physical address
* in the register.
DRM_ERROR("Can not allocate hardware status page\n");
return -ENOMEM;
}
- dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
+ dev_priv->render_ring.status_page.page_addr
+ = 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);
+ memset(dev_priv->render_ring.status_page.page_addr, 0, PAGE_SIZE);
if (IS_I965G(dev))
dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) &
dev_priv->status_page_dmah = NULL;
}
- if (dev_priv->status_gfx_addr) {
- dev_priv->status_gfx_addr = 0;
+ if (dev_priv->render_ring.status_page.gfx_addr) {
+ dev_priv->render_ring.status_page.gfx_addr = 0;
drm_core_ioremapfree(&dev_priv->hws_map, dev);
}
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv;
- drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
+ struct intel_ring_buffer *ring = &dev_priv->render_ring;
/*
* We should never lose context on the ring with modesetting
ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
ring->space = ring->head - (ring->tail + 8);
if (ring->space < 0)
- ring->space += ring->Size;
+ ring->space += ring->size;
if (!dev->primary->master)
return;
if (dev->irq_enabled)
drm_irq_uninstall(dev);
- if (dev_priv->ring.virtual_start) {
- drm_core_ioremapfree(&dev_priv->ring.map, dev);
- dev_priv->ring.virtual_start = NULL;
- dev_priv->ring.map.handle = NULL;
- dev_priv->ring.map.size = 0;
- }
+ intel_cleanup_ring_buffer(dev, &dev_priv->render_ring);
+ if (HAS_BSD(dev))
+ intel_cleanup_ring_buffer(dev, &dev_priv->bsd_ring);
/* Clear the HWS virtual address at teardown */
if (I915_NEED_GFX_HWS(dev))
}
if (init->ring_size != 0) {
- if (dev_priv->ring.ring_obj != NULL) {
+ if (dev_priv->render_ring.gem_object != NULL) {
i915_dma_cleanup(dev);
DRM_ERROR("Client tried to initialize ringbuffer in "
"GEM mode\n");
return -EINVAL;
}
- dev_priv->ring.Size = init->ring_size;
+ dev_priv->render_ring.size = init->ring_size;
- dev_priv->ring.map.offset = init->ring_start;
- dev_priv->ring.map.size = init->ring_size;
- dev_priv->ring.map.type = 0;
- dev_priv->ring.map.flags = 0;
- dev_priv->ring.map.mtrr = 0;
+ dev_priv->render_ring.map.offset = init->ring_start;
+ dev_priv->render_ring.map.size = init->ring_size;
+ dev_priv->render_ring.map.type = 0;
+ dev_priv->render_ring.map.flags = 0;
+ dev_priv->render_ring.map.mtrr = 0;
- drm_core_ioremap_wc(&dev_priv->ring.map, dev);
+ drm_core_ioremap_wc(&dev_priv->render_ring.map, dev);
- if (dev_priv->ring.map.handle == NULL) {
+ if (dev_priv->render_ring.map.handle == NULL) {
i915_dma_cleanup(dev);
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
}
}
- dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+ dev_priv->render_ring.virtual_start = dev_priv->render_ring.map.handle;
dev_priv->cpp = init->cpp;
dev_priv->back_offset = init->back_offset;
{
drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
+ struct intel_ring_buffer *ring;
DRM_DEBUG_DRIVER("%s\n", __func__);
- if (dev_priv->ring.map.handle == NULL) {
+ ring = &dev_priv->render_ring;
+
+ if (ring->map.handle == NULL) {
DRM_ERROR("can not ioremap virtual address for"
" ring buffer\n");
return -ENOMEM;
}
/* Program Hardware Status Page */
- if (!dev_priv->hw_status_page) {
+ if (!ring->status_page.page_addr) {
DRM_ERROR("Can not find hardware status page\n");
return -EINVAL;
}
DRM_DEBUG_DRIVER("hw status page @ %p\n",
- dev_priv->hw_status_page);
-
- if (dev_priv->status_gfx_addr != 0)
- I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
+ ring->status_page.page_addr);
+ if (ring->status_page.gfx_addr != 0)
+ ring->setup_status_page(dev, ring);
else
I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
+
DRM_DEBUG_DRIVER("Enabled hardware status page\n");
return 0;
{
drm_i915_private_t *dev_priv = dev->dev_private;
int i;
- RING_LOCALS;
- if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
+ if ((dwords+1) * sizeof(int) >= dev_priv->render_ring.size - 8)
return -EINVAL;
BEGIN_LP_RING((dwords+1)&~1);
struct drm_clip_rect *boxes,
int i, int DR1, int DR4)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_clip_rect box = boxes[i];
- RING_LOCALS;
if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
DRM_ERROR("Bad box %d,%d..%d,%d\n",
{
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
- RING_LOCALS;
dev_priv->counter++;
if (dev_priv->counter > 0x7FFFFFFFUL)
drm_i915_batchbuffer_t * batch,
struct drm_clip_rect *cliprects)
{
- drm_i915_private_t *dev_priv = dev->dev_private;
int nbox = batch->num_cliprects;
int i = 0, count;
- RING_LOCALS;
if ((batch->start | batch->used) & 0x7) {
DRM_ERROR("alignment");
drm_i915_private_t *dev_priv = dev->dev_private;
struct drm_i915_master_private *master_priv =
dev->primary->master->driver_priv;
- RING_LOCALS;
if (!master_priv->sarea_priv)
return -EINVAL;
drm_i915_private_t *dev_priv = dev->dev_private;
i915_kernel_lost_context(dev);
- return i915_wait_ring(dev, dev_priv->ring.Size - 8, __func__);
+ return intel_wait_ring_buffer(dev, &dev_priv->render_ring,
+ dev_priv->render_ring.size - 8);
}
static int i915_flush_ioctl(struct drm_device *dev, void *data,
/* depends on GEM */
value = dev_priv->has_gem;
break;
+ case I915_PARAM_HAS_BSD:
+ value = HAS_BSD(dev);
+ break;
default:
DRM_DEBUG_DRIVER("Unknown parameter %d\n",
param->param);
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_hws_addr_t *hws = data;
+ struct intel_ring_buffer *ring = &dev_priv->render_ring;
if (!I915_NEED_GFX_HWS(dev))
return -EINVAL;
DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
- dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
+ ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
dev_priv->hws_map.offset = dev->agp->base + hws->addr;
dev_priv->hws_map.size = 4*1024;
drm_core_ioremap_wc(&dev_priv->hws_map, dev);
if (dev_priv->hws_map.handle == NULL) {
i915_dma_cleanup(dev);
- dev_priv->status_gfx_addr = 0;
+ ring->status_page.gfx_addr = 0;
DRM_ERROR("can not ioremap virtual address for"
" G33 hw status page\n");
return -ENOMEM;
}
- dev_priv->hw_status_page = dev_priv->hws_map.handle;
+ ring->status_page.page_addr = dev_priv->hws_map.handle;
+ memset(ring->status_page.page_addr, 0, PAGE_SIZE);
+ I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
- memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
- I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
- dev_priv->status_gfx_addr);
+ ring->status_page.gfx_addr);
DRM_DEBUG_DRIVER("load hws at %p\n",
- dev_priv->hw_status_page);
+ ring->status_page.page_addr);
return 0;
}
struct drm_device *dev = pci_get_drvdata(pdev);
pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
if (state == VGA_SWITCHEROO_ON) {
- printk(KERN_INFO "i915: switched off\n");
+ printk(KERN_INFO "i915: switched on\n");
/* i915 resume handler doesn't set to D0 */
pci_set_power_state(dev->pdev, PCI_D0);
i915_resume(dev);
+ drm_kms_helper_poll_enable(dev);
} else {
printk(KERN_ERR "i915: switched off\n");
+ drm_kms_helper_poll_disable(dev);
i915_suspend(dev, pmm);
}
}
master->driver_priv = NULL;
}
-static void i915_get_mem_freq(struct drm_device *dev)
+static void i915_pineview_get_mem_freq(struct drm_device *dev)
{
drm_i915_private_t *dev_priv = dev->dev_private;
u32 tmp;
- if (!IS_PINEVIEW(dev))
- return;
-
tmp = I915_READ(CLKCFG);
switch (tmp & CLKCFG_FSB_MASK) {
dev_priv->mem_freq = 800;
break;
}
+
+ /* detect pineview DDR3 setting */
+ tmp = I915_READ(CSHRDDR3CTL);
+ dev_priv->is_ddr3 = (tmp & CSHRDDR3CTL_DDR3) ? 1 : 0;
+}
+
+static void i915_ironlake_get_mem_freq(struct drm_device *dev)
+{
+ drm_i915_private_t *dev_priv = dev->dev_private;
+ u16 ddrpll, csipll;
+
+ ddrpll = I915_READ16(DDRMPLL1);
+ csipll = I915_READ16(CSIPLL0);
+
+ switch (ddrpll & 0xff) {
+ case 0xc:
+ dev_priv->mem_freq = 800;
+ break;
+ case 0x10:
+ dev_priv->mem_freq = 1066;
+ break;
+ case 0x14:
+ dev_priv->mem_freq = 1333;
+ break;
+ case 0x18:
+ dev_priv->mem_freq = 1600;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("unknown memory frequency 0x%02x\n",
+ ddrpll & 0xff);
+ dev_priv->mem_freq = 0;
+ break;
+ }
+
+ dev_priv->r_t = dev_priv->mem_freq;
+
+ switch (csipll & 0x3ff) {
+ case 0x00c:
+ dev_priv->fsb_freq = 3200;
+ break;
+ case 0x00e:
+ dev_priv->fsb_freq = 3733;
+ break;
+ case 0x010:
+ dev_priv->fsb_freq = 4266;
+ break;
+ case 0x012:
+ dev_priv->fsb_freq = 4800;
+ break;
+ case 0x014:
+ dev_priv->fsb_freq = 5333;
+ break;
+ case 0x016:
+ dev_priv->fsb_freq = 5866;
+ break;
+ case 0x018:
+ dev_priv->fsb_freq = 6400;
+ break;
+ default:
+ DRM_DEBUG_DRIVER("unknown fsb frequency 0x%04x\n",
+ csipll & 0x3ff);
+ dev_priv->fsb_freq = 0;
+ break;
+ }
+
+ if (dev_priv->fsb_freq == 3200) {
+ dev_priv->c_m = 0;
+ } else if (dev_priv->fsb_freq > 3200 && dev_priv->fsb_freq <= 4800) {
+ dev_priv->c_m = 1;
+ } else {
+ dev_priv->c_m = 2;
+ }
+}
+
+struct v_table {
+ u8 vid;
+ unsigned long vd; /* in .1 mil */
+ unsigned long vm; /* in .1 mil */
+ u8 pvid;
+};
+
+static struct v_table v_table[] = {
+ { 0, 16125, 15000, 0x7f, },
+ { 1, 16000, 14875, 0x7e, },
+ { 2, 15875, 14750, 0x7d, },
+ { 3, 15750, 14625, 0x7c, },
+ { 4, 15625, 14500, 0x7b, },
+ { 5, 15500, 14375, 0x7a, },
+ { 6, 15375, 14250, 0x79, },
+ { 7, 15250, 14125, 0x78, },
+ { 8, 15125, 14000, 0x77, },
+ { 9, 15000, 13875, 0x76, },
+ { 10, 14875, 13750, 0x75, },
+ { 11, 14750, 13625, 0x74, },
+ { 12, 14625, 13500, 0x73, },
+ { 13, 14500, 13375, 0x72, },
+ { 14, 14375, 13250, 0x71, },
+ { 15, 14250, 13125, 0x70, },
+ { 16, 14125, 13000, 0x6f, },
+ { 17, 14000, 12875, 0x6e, },
+ { 18, 13875, 12750, 0x6d, },
+ { 19, 13750, 12625, 0x6c, },
+ { 20, 13625, 12500, 0x6b, },
+ { 21, 13500, 12375, 0x6a, },
+ { 22, 13375, 12250, 0x69, },
+ { 23, 13250, 12125, 0x68, },
+ { 24, 13125, 12000, 0x67, },
+ { 25, 13000, 11875, 0x66, },
+ { 26, 12875, 11750, 0x65, },
+ { 27, 12750, 11625, 0x64, },
+ { 28, 12625, 11500, 0x63, },
+ { 29, 12500, 11375, 0x62, },
+ { 30, 12375, 11250, 0x61, },
+ { 31, 12250, 11125, 0x60, },
+ { 32, 12125, 11000, 0x5f, },
+ { 33, 12000, 10875, 0x5e, },
+ { 34, 11875, 10750, 0x5d, },
+ { 35, 11750, 10625, 0x5c, },
+ { 36, 11625, 10500, 0x5b, },
+ { 37, 11500, 10375, 0x5a, },
+ { 38, 11375, 10250, 0x59, },
+ { 39, 11250, 10125, 0x58, },
+ { 40, 11125, 10000, 0x57, },
+ { 41, 11000, 9875, 0x56, },
+ { 42, 10875, 9750, 0x55, },
+ { 43, 10750, 9625, 0x54, },
+ { 44, 10625, 9500, 0x53, },
+ { 45, 10500, 9375, 0x52, },
+ { 46, 10375, 9250, 0x51, },
+ { 47, 10250, 9125, 0x50, },
+ { 48, 10125, 9000, 0x4f, },
+ { 49, 10000, 8875, 0x4e, },
+ { 50, 9875, 8750, 0x4d, },
+ { 51, 9750, 8625, 0x4c, },
+ { 52, 9625, 8500, 0x4b, },
+ { 53, 9500, 8375, 0x4a, },
+ { 54, 9375, 8250, 0x49, },
+ { 55, 9250, 8125, 0x48, },
+ { 56, 9125, 8000, 0x47, },
+ { 57, 9000, 7875, 0x46, },
+ { 58, 8875, 7750, 0x45, },
+ { 59, 8750, 7625, 0x44, },
+ { 60, 8625, 7500, 0x43, },
+ { 61, 8500, 7375, 0x42, },
+ { 62, 8375, 7250, 0x41, },
+ { 63, 8250, 7125, 0x40, },
+ { 64, 8125, 7000, 0x3f, },
+ { 65, 8000, 6875, 0x3e, },
+ { 66, 7875, 6750, 0x3d, },
+ { 67, 7750, 6625, 0x3c, },
+ { 68, 7625, 6500, 0x3b, },
+ { 69, 7500, 6375, 0x3a, },
+ { 70, 7375, 6250, 0x39, },
+ { 71, 7250, 6125, 0x38, },
+ { 72, 7125, 6000, 0x37, },
+ { 73, 7000, 5875, 0x36, },
+ { 74, 6875, 5750, 0x35, },
+ { 75, 6750, 5625, 0x34, },
+ { 76, 6625, 5500, 0x33, },
+ { 77, 6500, 5375, 0x32, },
+ { 78, 6375, 5250, 0x31, },
+ { 79, 6250, 5125, 0x30, },
+ { 80, 6125, 5000, 0x2f, },
+ { 81, 6000, 4875, 0x2e, },
+ { 82, 5875, 4750, 0x2d, },
+ { 83, 5750, 4625, 0x2c, },
+ { 84, 5625, 4500, 0x2b, },
+ { 85, 5500, 4375, 0x2a, },
+ { 86, 5375, 4250, 0x29, },
+ { 87, 5250, 4125, 0x28, },
+ { 88, 5125, 4000, 0x27, },
+ { 89, 5000, 3875, 0x26, },
+ { 90, 4875, 3750, 0x25, },
+ { 91, 4750, 3625, 0x24, },
+ { 92, 4625, 3500, 0x23, },
+ { 93, 4500, 3375, 0x22, },
+ { 94, 4375, 3250, 0x21, },
+ { 95, 4250, 3125, 0x20, },
+ { 96, 4125, 3000, 0x1f, },
+ { 97, 4125, 3000, 0x1e, },
+ { 98, 4125, 3000, 0x1d, },
+ { 99, 4125, 3000, 0x1c, },
+ { 100, 4125, 3000, 0x1b, },
+ { 101, 4125, 3000, 0x1a, },
+ { 102, 4125, 3000, 0x19, },
+ { 103, 4125, 3000, 0x18, },
+ { 104, 4125, 3000, 0x17, },
+ { 105, 4125, 3000, 0x16, },
+ { 106, 4125, 3000, 0x15, },
+ { 107, 4125, 3000, 0x14, },
+ { 108, 4125, 3000, 0x13, },
+ { 109, 4125, 3000, 0x12, },
+ { 110, 4125, 3000, 0x11, },
+ { 111, 4125, 3000, 0x10, },
+ { 112, 4125, 3000, 0x0f, },
+ { 113, 4125, 3000, 0x0e, },
+ { 114, 4125, 3000, 0x0d, },
+ { 115, 4125, 3000, 0x0c, },
+ { 116, 4125, 3000, 0x0b, },
+ { 117, 4125, 3000, 0x0a, },
+ { 118, 4125, 3000, 0x09, },
+ { 119, 4125, 3000, 0x08, },
+ { 120, 1125, 0, 0x07, },
+ { 121, 1000, 0, 0x06, },
+ { 122, 875, 0, 0x05, },
+ { 123, 750, 0, 0x04, },
+ { 124, 625, 0, 0x03, },
+ { 125, 500, 0, 0x02, },
+ { 126, 375, 0, 0x01, },
+ { 127, 0, 0, 0x00, },
+};
+
+struct cparams {
+ int i;
+ int t;
+ int m;
+ int c;
+};
+
+static struct cparams cparams[] = {
+ { 1, 1333, 301, 28664 },
+ { 1, 1066, 294, 24460 },
+ { 1, 800, 294, 25192 },
+ { 0, 1333, 276, 27605 },
+ { 0, 1066, 276, 27605 },
+ { 0, 800, 231, 23784 },
+};
+
+unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
+{
+ u64 total_count, diff, ret;
+ u32 count1, count2, count3, m = 0, c = 0;
+ unsigned long now = jiffies_to_msecs(jiffies), diff1;
+ int i;
+
+ diff1 = now - dev_priv->last_time1;
+
+ count1 = I915_READ(DMIEC);
+ count2 = I915_READ(DDREC);
+ count3 = I915_READ(CSIEC);
+
+ total_count = count1 + count2 + count3;
+
+ /* FIXME: handle per-counter overflow */
+ if (total_count < dev_priv->last_count1) {
+ diff = ~0UL - dev_priv->last_count1;
+ diff += total_count;
+ } else {
+ diff = total_count - dev_priv->last_count1;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(cparams); i++) {
+ if (cparams[i].i == dev_priv->c_m &&
+ cparams[i].t == dev_priv->r_t) {
+ m = cparams[i].m;
+ c = cparams[i].c;
+ break;
+ }
+ }
+
+ div_u64(diff, diff1);
+ ret = ((m * diff) + c);
+ div_u64(ret, 10);
+
+ dev_priv->last_count1 = total_count;
+ dev_priv->last_time1 = now;
+
+ return ret;
+}
+
+unsigned long i915_mch_val(struct drm_i915_private *dev_priv)
+{
+ unsigned long m, x, b;
+ u32 tsfs;
+
+ tsfs = I915_READ(TSFS);
+
+ m = ((tsfs & TSFS_SLOPE_MASK) >> TSFS_SLOPE_SHIFT);
+ x = I915_READ8(TR1);
+
+ b = tsfs & TSFS_INTR_MASK;
+
+ return ((m * x) / 127) - b;
+}
+
+static unsigned long pvid_to_extvid(struct drm_i915_private *dev_priv, u8 pxvid)
+{
+ unsigned long val = 0;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(v_table); i++) {
+ if (v_table[i].pvid == pxvid) {
+ if (IS_MOBILE(dev_priv->dev))
+ val = v_table[i].vm;
+ else
+ val = v_table[i].vd;
+ }
+ }
+
+ return val;
}
+void i915_update_gfx_val(struct drm_i915_private *dev_priv)
+{
+ struct timespec now, diff1;
+ u64 diff;
+ unsigned long diffms;
+ u32 count;
+
+ getrawmonotonic(&now);
+ diff1 = timespec_sub(now, dev_priv->last_time2);
+
+ /* Don't divide by 0 */
+ diffms = diff1.tv_sec * 1000 + diff1.tv_nsec / 1000000;
+ if (!diffms)
+ return;
+
+ count = I915_READ(GFXEC);
+
+ if (count < dev_priv->last_count2) {
+ diff = ~0UL - dev_priv->last_count2;
+ diff += count;
+ } else {
+ diff = count - dev_priv->last_count2;
+ }
+
+ dev_priv->last_count2 = count;
+ dev_priv->last_time2 = now;
+
+ /* More magic constants... */
+ diff = diff * 1181;
+ div_u64(diff, diffms * 10);
+ dev_priv->gfx_power = diff;
+}
+
+unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
+{
+ unsigned long t, corr, state1, corr2, state2;
+ u32 pxvid, ext_v;
+
+ pxvid = I915_READ(PXVFREQ_BASE + (dev_priv->cur_delay * 4));
+ pxvid = (pxvid >> 24) & 0x7f;
+ ext_v = pvid_to_extvid(dev_priv, pxvid);
+
+ state1 = ext_v;
+
+ t = i915_mch_val(dev_priv);
+
+ /* Revel in the empirically derived constants */
+
+ /* Correction factor in 1/100000 units */
+ if (t > 80)
+ corr = ((t * 2349) + 135940);
+ else if (t >= 50)
+ corr = ((t * 964) + 29317);
+ else /* < 50 */
+ corr = ((t * 301) + 1004);
+
+ corr = corr * ((150142 * state1) / 10000 - 78642);
+ corr /= 100000;
+ corr2 = (corr * dev_priv->corr);
+
+ state2 = (corr2 * state1) / 10000;
+ state2 /= 100; /* convert to mW */
+
+ i915_update_gfx_val(dev_priv);
+
+ return dev_priv->gfx_power + state2;
+}
+
+/* Global for IPS driver to get at the current i915 device */
+static struct drm_i915_private *i915_mch_dev;
+/*
+ * Lock protecting IPS related data structures
+ * - i915_mch_dev
+ * - dev_priv->max_delay
+ * - dev_priv->min_delay
+ * - dev_priv->fmax
+ * - dev_priv->gpu_busy
+ */
+DEFINE_SPINLOCK(mchdev_lock);
+
+/**
+ * i915_read_mch_val - return value for IPS use
+ *
+ * Calculate and return a value for the IPS driver to use when deciding whether
+ * we have thermal and power headroom to increase CPU or GPU power budget.
+ */
+unsigned long i915_read_mch_val(void)
+{
+ struct drm_i915_private *dev_priv;
+ unsigned long chipset_val, graphics_val, ret = 0;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev)
+ goto out_unlock;
+ dev_priv = i915_mch_dev;
+
+ chipset_val = i915_chipset_val(dev_priv);
+ graphics_val = i915_gfx_val(dev_priv);
+
+ ret = chipset_val + graphics_val;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_read_mch_val);
+
+/**
+ * i915_gpu_raise - raise GPU frequency limit
+ *
+ * Raise the limit; IPS indicates we have thermal headroom.
+ */
+bool i915_gpu_raise(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ if (dev_priv->max_delay > dev_priv->fmax)
+ dev_priv->max_delay--;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_raise);
+
+/**
+ * i915_gpu_lower - lower GPU frequency limit
+ *
+ * IPS indicates we're close to a thermal limit, so throttle back the GPU
+ * frequency maximum.
+ */
+bool i915_gpu_lower(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ if (dev_priv->max_delay < dev_priv->min_delay)
+ dev_priv->max_delay++;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_lower);
+
+/**
+ * i915_gpu_busy - indicate GPU business to IPS
+ *
+ * Tell the IPS driver whether or not the GPU is busy.
+ */
+bool i915_gpu_busy(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = false;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev)
+ goto out_unlock;
+ dev_priv = i915_mch_dev;
+
+ ret = dev_priv->busy;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_busy);
+
+/**
+ * i915_gpu_turbo_disable - disable graphics turbo
+ *
+ * Disable graphics turbo by resetting the max frequency and setting the
+ * current frequency to the default.
+ */
+bool i915_gpu_turbo_disable(void)
+{
+ struct drm_i915_private *dev_priv;
+ bool ret = true;
+
+ spin_lock(&mchdev_lock);
+ if (!i915_mch_dev) {
+ ret = false;
+ goto out_unlock;
+ }
+ dev_priv = i915_mch_dev;
+
+ dev_priv->max_delay = dev_priv->fstart;
+
+ if (!ironlake_set_drps(dev_priv->dev, dev_priv->fstart))
+ ret = false;
+
+out_unlock:
+ spin_unlock(&mchdev_lock);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_turbo_disable);
+
/**
* i915_driver_load - setup chip and create an initial config
* @dev: DRM device
resource_size_t base, size;
int ret = 0, mmio_bar;
uint32_t agp_size, prealloc_size, prealloc_start;
-
/* i915 has 4 more counters */
dev->counters += 4;
dev->types[6] = _DRM_STAT_IRQ;
dev_priv->has_gem = 0;
}
+ if (dev_priv->has_gem == 0 &&
+ drm_core_check_feature(dev, DRIVER_MODESET)) {
+ DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
+ ret = -ENODEV;
+ goto out_iomapfree;
+ }
+
dev->driver->get_vblank_counter = i915_get_vblank_counter;
dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
goto out_workqueue_free;
}
- i915_get_mem_freq(dev);
+ if (IS_PINEVIEW(dev))
+ i915_pineview_get_mem_freq(dev);
+ else if (IS_IRONLAKE(dev))
+ i915_ironlake_get_mem_freq(dev);
/* On the 945G/GM, the chipset reports the MSI capability on the
* integrated graphics even though the support isn't actually there
spin_lock_init(&dev_priv->user_irq_lock);
spin_lock_init(&dev_priv->error_lock);
- dev_priv->user_irq_refcount = 0;
dev_priv->trace_irq_seqno = 0;
ret = drm_vblank_init(dev, I915_NUM_PIPE);
setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
(unsigned long) dev);
+
+ spin_lock(&mchdev_lock);
+ i915_mch_dev = dev_priv;
+ dev_priv->mchdev_lock = &mchdev_lock;
+ spin_unlock(&mchdev_lock);
+
return 0;
out_workqueue_free:
i915_destroy_error_state(dev);
+ spin_lock(&mchdev_lock);
+ i915_mch_dev = NULL;
+ spin_unlock(&mchdev_lock);
+
destroy_workqueue(dev_priv->wq);
del_timer_sync(&dev_priv->hangcheck_timer);
git.openpandora.org / pandora-kernel.git / commitdiff