/* i915_mem.c -- Simple agp/fb memory manager for i915 -*- linux-c -*-
*/
/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
**************************************************************************/
#include "drmP.h"
#include "drm.h"
#include "i915_drm.h"
#include "i915_drv.h"
/* This memory manager is integrated into the global/local lru
* mechanisms used by the clients. Specifically, it operates by
* setting the 'in_use' fields of the global LRU to indicate whether
* this region is privately allocated to a client.
*
* This does require the client to actually respect that field.
*
* Currently no effort is made to allocate 'private' memory in any
* clever way - the LRU information isn't used to determine which
* block to allocate, and the ring is drained prior to allocations --
* in other words allocation is expensive.
*/
static void mark_block(drm_device_t * dev, struct mem_block *p, int in_use)
{
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_sarea_t *sarea_priv = dev_priv->sarea_priv;
drm_tex_region_t *list;
unsigned shift, nr;
unsigned start;
unsigned end;
unsigned i;
int age;
shift = dev_priv->tex_lru_log_granularity;
nr = I915_NR_TEX_REGIONS;
start = p->start >> shift;
end = (p->start + p->size - 1) >> shift;
age = ++sarea_priv->texAge;
list = sarea_priv->texList;
/* Mark the regions with the new flag and update their age. Move
* them to head of list to preserve LRU semantics.
*/
for (i = start; i <= end; i++) {
list[i].in_use = in_use;
list[i].age = age;
/* remove_from_list(i)
*/
list[(unsigned)list[i].next].prev = list[i].prev;
list[(unsigned)list[i].prev].next = list[i].next;
/* insert_at_head(list, i)
*/
list[i].prev = nr;
list[i].next = list[nr].next;
list[(unsigned)list[nr].next].prev = i;
list[nr].next = i;
}
}
/* Very simple allocator for agp memory, working on a static range
* already mapped into each client's address space.
*/
static struct mem_block *split_block(struct mem_block *p, int start, int size,
DRMFILE filp)
{
/* Maybe cut off the start of an existing block */
if (start > p->start) {
struct mem_block *newblock =
drm_alloc(sizeof(*newblock), DRM_MEM_BUFLISTS);
if (!newblock)
goto out;
newblock->start = start;
newblock->size = p->size - (start - p->start);
newblock->filp = NULL;
newblock->next = p->next;
newblock->prev = p;
p->next->prev = newblock;
p->next = newblock;
p->size -= newblock->size;
p = newblock;
}
/* Maybe cut off the end of an existing block */
if (size < p->size) {
struct mem_block *newblock =
drm_alloc(sizeof(*newblock), DRM_MEM_BUFLISTS);
if (!newblock)
goto out;
newblock->start = start + size;
newblock->size = p->size - size;
newblock->filp = NULL;
newblock->next = p->next;
newblock->prev = p;
p->next->prev = newblock;
p->next = newblock;
p->size = size;
}
out:
/* Our block is in the middle */
p->filp = filp;
return p;
}
static struct mem_block *alloc_block(struct mem_block *heap, int size,
int align2, DRMFILE filp)
{
struct mem_block *p;
int mask = (1 << align2) - 1;
for (p = heap->next; p != heap; p = p->next) {
int start = (p->start + mask) & ~mask;
if (p->filp == NULL && start + size <= p->start + p->size)
return split_block(p, start, size, filp);
}
return NULL;
}
static struct mem_block *find_block(struct mem_block *heap, int start)
{
struct mem_block *p;
for (p = heap->next; p != heap; p = p->next)
if (p->start == start)
return p;
return NULL;
}
static void free_block(struct mem_block *p)
{
p->filp = NULL;
/* Assumes a single contiguous range. Needs a special filp in
* 'heap' to stop it being subsumed.
*/
if (p->next->filp == NULL) {
struct mem_block *q = p->next;
p->size += q->size;
p->next = q->next;
p->next->prev = p;
drm_free(q, sizeof(*q), DRM_MEM_BUFLISTS);
}
if (p->prev->filp == NULL) {
struct mem_block *q = p->prev;
q->size += p->size;
q->next = p->next;
q->next->prev = q;
drm_free(p, sizeof(*q), DRM_MEM_BUFLISTS);
}
}
/* Initialize. How to check for an uninitialized heap?
*/
static int init_heap(struct mem_block **heap, int start, int size)
{
struct mem_block *blocks = drm_alloc(sizeof(*blocks), DRM_MEM_BUFLISTS);
if (!blocks)
return -ENOMEM;
*heap = drm_alloc(sizeof(**heap), DRM_MEM_BUFLISTS);
if (!*heap) {
drm_free(blocks, sizeof(*blocks), DRM_MEM_BUFLISTS);
return -ENOMEM;
}
blocks->start = start;
blocks->size = size;
blocks->filp = NULL;
blocks->next = blocks->prev = *heap;
memset(*heap, 0, sizeof(**heap));
(*heap)->filp = (DRMFILE) - 1;
(*heap)->next = (*heap)->prev = blocks;
return 0;
}
/* Free all blocks associated with the releasing file.
*/
void i915_mem_release(drm_device_t * dev, DRMFILE filp, struct mem_block *heap)
{
struct mem_block *p;
if (!heap || !heap->next)
return;
for (p = heap->next; p != heap; p = p->next) {
if (p->filp == filp) {
p->filp = NULL;
mark_block(dev, p, 0);
}
}
/* Assumes a single contiguous range. Needs a special filp in
* 'heap' to stop it being subsumed.
*/
for (p = heap->next; p != heap; p = p->next) {
while (p->filp == NULL && p->next->filp == NULL) {
struct mem_block *q = p->next;
p->size += q->size;
p->next = q->next;
p->next->prev = p;
drm_free(q, sizeof(*q), DRM_MEM_BUFLISTS);
}
}
}
/* Shutdown.
*/
void i915_mem_takedown(struct mem_block **heap)
{
struct mem_block *p;
if (!*heap)
return;
for (p = (*heap)->next; p != *heap;) {
struct mem_block *q = p;
p = p->next;
drm_free(q, sizeof(*q), DRM_MEM_BUFLISTS);
}
drm_free(*heap, sizeof(**heap), DRM_MEM_BUFLISTS);
*heap = NULL;
}
static struct mem_block **get_heap(drm_i915_private_t * dev_priv, int region)
{
switch (region) {
case I915_MEM_REGION_AGP:
return &dev_priv->agp_heap;
default:
return NULL;
}
}
/* IOCTL HANDLERS */
int i915_mem_alloc(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_mem_alloc_t alloc;
struct mem_block *block, **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
return DRM_ERR(EINVAL);
}
DRM_COPY_FROM_USER_IOCTL(alloc, (drm_i915_mem_alloc_t __user *) data,
sizeof(alloc));
heap = get_heap(dev_priv, alloc.region);
if (!heap || !*heap)
return DRM_ERR(EFAULT);
/* Make things easier on ourselves: all allocations at least
* 4k aligned.
*/
if (alloc.alignment < 12)
alloc.alignment = 12;
block = alloc_block(*heap, alloc.size, alloc.alignment, filp);
if (!block)
return DRM_ERR(ENOMEM);
mark_block(dev, block, 1);
if (DRM_COPY_TO_USER(alloc.region_offset, &block->start, sizeof(int))) {
DRM_ERROR("copy_to_user\n");
return DRM_ERR(EFAULT);
}
return 0;
}
int i915_mem_free(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_mem_free_t memfree;
struct mem_block *block, **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
return DRM_ERR(EINVAL);
}
DRM_COPY_FROM_USER_IOCTL(memfree, (drm_i915_mem_free_t __user *) data,
sizeof(memfree));
heap = get_heap(dev_priv, memfree.region);
if (!heap || !*heap)
return DRM_ERR(EFAULT);
block = find_block(*heap, memfree.region_offset);
if (!block)
return DRM_ERR(EFAULT);
if (block->filp != filp)
return DRM_ERR(EPERM);
mark_block(dev, block, 0);
free_block(block);
return 0;
}
int i915_mem_init_heap(DRM_IOCTL_ARGS)
{
DRM_DEVICE;
drm_i915_private_t *dev_priv = dev->dev_private;
drm_i915_mem_init_heap_t initheap;
struct mem_block **heap;
if (!dev_priv) {
DRM_ERROR("%s called with no initialization\n", __FUNCTION__);
return DRM_ERR(EINVAL);
}
DRM_COPY_FROM_USER_IOCTL(initheap,
(drm_i915_mem_init_heap_t __user *) data,
sizeof(initheap));
heap = get_heap(dev_priv, initheap.region);
if (!heap)
return DRM_ERR(EFAULT);
if (*heap) {
DRM_ERROR("heap already initialized?");
return DRM_ERR(EFAULT);
}
return init_heap(heap, initheap.start, initheap.size);
}
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/*
* Copyright (C) 2008 Maarten Maathuis.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*/
#include "nv50_display.h"
#include "nv50_crtc.h"
#include "nv50_output.h"
#include "nv50_connector.h"
static int nv50_display_pre_init(struct nv50_display *display)
{
struct drm_device *dev = display->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
int i;
uint32_t ram_amount;
NV50_DEBUG("\n");
NV_WRITE(0x00610184, NV_READ(0x00614004));
/*
* I think the 0x006101XX range is some kind of main control area that enables things.
*/
/* CRTC? */
NV_WRITE(0x00610190 + 0 * 0x10, NV_READ(0x00616100 + 0 * 0x800));
NV_WRITE(0x00610190 + 1 * 0x10, NV_READ(0x00616100 + 1 * 0x800));
NV_WRITE(0x00610194 + 0 * 0x10, NV_READ(0x00616104 + 0 * 0x800));
NV_WRITE(0x00610194 + 1 * 0x10, NV_READ(0x00616104 + 1 * 0x800));
NV_WRITE(0x00610198 + 0 * 0x10, NV_READ(0x00616108 + 0 * 0x800));
NV_WRITE(0x00610198 + 1 * 0x10, NV_READ(0x00616108 + 1 * 0x800));
NV_WRITE(0x0061019c + 0 * 0x10, NV_READ(0x0061610c + 0 * 0x800));
NV_WRITE(0x0061019c + 1 * 0x10, NV_READ(0x0061610c + 1 * 0x800));
/* DAC */
NV_WRITE(0x006101d0 + 0 * 0x4, NV_READ(0x0061a000 + 0 * 0x800));
NV_WRITE(0x006101d0 + 1 * 0x4, NV_READ(0x0061a000 + 1 * 0x800));
NV_WRITE(0x006101d0 + 2 * 0x4, NV_READ(0x0061a000 + 2 * 0x800));
/* SOR */
NV_WRITE(0x006101e0 + 0 * 0x4, NV_READ(0x0061c000 + 0 * 0x800));
NV_WRITE(0x006101e0 + 1 * 0x4, NV_READ(0x0061c000 + 1 * 0x800));
/* Something not yet in use, tv-out maybe. */
NV_WRITE(0x006101f0 + 0 * 0x4, NV_READ(0x0061e000 + 0 * 0x800));
NV_WRITE(0x006101f0 + 1 * 0x4, NV_READ(0x0061e000 + 1 * 0x800));
NV_WRITE(0x006101f0 + 2 * 0x4, NV_READ(0x0061e000 + 2 * 0x800));
for (i = 0; i < 3; i++) {
NV_WRITE(NV50_PDISPLAY_DAC_REGS_DPMS_CTRL(i), 0x00550000 | NV50_PDISPLAY_DAC_REGS_DPMS_CTRL_PENDING);
NV_WRITE(NV50_PDISPLAY_DAC_REGS_CLK_CTRL1(i), 0x00000001);
}
/* This used to be in crtc unblank, but seems out of place there. */
NV_WRITE(NV50_PDISPLAY_UNK_380, 0);
/* RAM is clamped to 256 MiB. */
ram_amount = nouveau_mem_fb_amount(display->dev);
NV50_DEBUG("ram_amount %d\n", ram_amount);
if (ram_amount > 256*1024*1024)
ram_amount = 256*1024*1024;
NV_WRITE(NV50_PDISPLAY_RAM_AMOUNT, ram_amount - 1);
NV_WRITE(NV50_PDISPLAY_UNK_388, 0x150000);
NV_WRITE(NV50_PDISPLAY_UNK_38C, 0);
display->preinit_done = true;
return 0;
}
static int nv50_display_init(struct nv50_display *display)
{
struct drm_device *dev = display->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
uint32_t val;
NV50_DEBUG("\n");
/* The precise purpose is unknown, i suspect it has something to do with text mode. */
if (NV_READ(NV50_PDISPLAY_SUPERVISOR) & 0x100) {
NV_WRITE(NV50_PDISPLAY_SUPERVISOR, 0x100);
NV_WRITE(0x006194e8, NV_READ(0x006194e8) & ~1);
while (NV_READ(0x006194e8) & 2);
}
/* taken from nv bug #12637 */
NV_WRITE(NV50_PDISPLAY_UNK200_CTRL, 0x2b00);
do {
val = NV_READ(NV50_PDISPLAY_UNK200_CTRL);
if ((val & 0x9f0000) == 0x20000)
NV_WRITE(NV50_PDISPLAY_UNK200_CTRL, val | 0x800000);
if ((val & 0x3f0000) == 0x30000)
NV_WRITE(NV50_PDISPLAY_UNK200_CTRL, val | 0x200000);
} while (val & 0x1e0000);
NV_WRITE(NV50_PDISPLAY_CTRL_STATE, NV50_PDISPLAY_CTRL_STATE_ENABLE);
NV_WRITE(NV50_PDISPLAY_UNK200_CTRL, 0x1000b03);
while (!(NV_READ(NV50_PDISPLAY_UNK200_CTRL) & 0x40000000));
/* For the moment this is just a wrapper, which should be replaced with a real fifo at some point. */
OUT_MODE(NV50_UNK84, 0);
OUT_MODE(NV50_UNK88, 0);
OUT_MODE(NV50_CRTC0_BLANK_CTRL, NV50_CRTC0_BLANK_CTRL_BLANK);
OUT_MODE(NV50_CRTC0_UNK800, 0);
OUT_MODE(NV50_CRTC0_DISPLAY_START, 0);
OUT_MODE(NV50_CRTC0_UNK82C, 0);
/* enable clock change interrupts. */
NV_WRITE(NV50_PDISPLAY_SUPERVISOR_INTR, NV_READ(NV50_PDISPLAY_SUPERVISOR_INTR) | 0x70);
/* enable hotplug interrupts */
NV_WRITE(NV50_PCONNECTOR_HOTPLUG_INTR, 0x7FFF7FFF);
display->init_done = true;
return 0;
}
static int nv50_display_disable(struct nv50_display *display)
{
struct drm_device *dev = display->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_crtc *crtc = NULL;
int i;
NV50_DEBUG("\n");
list_for_each_entry(crtc, &display->crtcs, item) {
crtc->blank(crtc, true);
}
display->update(display);
/* Almost like ack'ing a vblank interrupt, maybe in the spirit of cleaning up? */
list_for_each_entry(crtc, &display->crtcs, item) {
if (crtc->enabled) {
uint32_t mask;
if (crtc->index == 1)
mask = NV50_PDISPLAY_SUPERVISOR_CRTC1;
else
mask = NV50_PDISPLAY_SUPERVISOR_CRTC0;
NV_WRITE(NV50_PDISPLAY_SUPERVISOR, mask);
while (!(NV_READ(NV50_PDISPLAY_SUPERVISOR) & mask));
}
}
NV_WRITE(NV50_PDISPLAY_UNK200_CTRL, 0);
NV_WRITE(NV50_PDISPLAY_CTRL_STATE, 0);
while ((NV_READ(NV50_PDISPLAY_UNK200_CTRL) & 0x1e0000) != 0);
for (i = 0; i < 2; i++) {
while (NV_READ(NV50_PDISPLAY_SOR_REGS_DPMS_STATE(i)) & NV50_PDISPLAY_SOR_REGS_DPMS_STATE_WAIT);
}
/* disable clock change interrupts. */
NV_WRITE(NV50_PDISPLAY_SUPERVISOR_INTR, NV_READ(NV50_PDISPLAY_SUPERVISOR_INTR) & ~0x70);
/* disable hotplug interrupts */
NV_WRITE(NV50_PCONNECTOR_HOTPLUG_INTR, 0);
display->init_done = false;
return 0;
}
static int nv50_display_update(struct nv50_display *display)
{
struct drm_device *dev = display->dev;
struct drm_nouveau_private *dev_priv = dev->dev_private;
NV50_DEBUG("\n");
OUT_MODE(NV50_UPDATE_DISPLAY, 0);
return 0;
}
int nv50_display_create(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_display *display = kzalloc(sizeof(struct nv50_display), GFP_KERNEL);
int i, type, output_index, bus;
/* DAC0, DAC1, DAC2, SOR0, SOR1*/
int or_counter[5] = {0, 0, 0, 0, 0};
int i2c_index[5] = {0, 0, 0, 0, 0};
uint32_t bus_mask = 0;
uint32_t bus_digital = 0, bus_analog = 0;
NV50_DEBUG("\n");
if (!display)
return -ENOMEM;
INIT_LIST_HEAD(&display->crtcs);
INIT_LIST_HEAD(&display->outputs);
INIT_LIST_HEAD(&display->connectors);
dev_priv->display_priv = display;
for (i = 0; i < 2; i++) {
nv50_crtc_create(dev, i);
}
/* we setup the outputs up from the BIOS table */
for (i = 0 ; i < dev_priv->dcb_table.entries; i++) {
type = dev_priv->dcb_table.entry[i].type;
output_index = ffs(dev_priv->dcb_table.entry[i].or) - 1;
bus = dev_priv->dcb_table.entry[i].bus;
switch (type) {
case DCB_OUTPUT_TMDS:
case DCB_OUTPUT_LVDS:
or_counter[output_index + 3] += 1;
i2c_index[output_index + 3] = dev_priv->dcb_table.entry[i].i2c_index;
bus_digital |= (1 << bus);
nv50_sor_create(dev, i);
break;
case DCB_OUTPUT_ANALOG:
or_counter[output_index] += 1;
i2c_index[output_index] = dev_priv->dcb_table.entry[i].i2c_index;
bus_analog |= (1 << bus);
nv50_dac_create(dev, i);
break;
default:
break;
}
}
/* setup the connectors based on the output tables. */
for (i = 0 ; i < dev_priv->dcb_table.entries; i++) {
int connector_type = 0;
type = dev_priv->dcb_table.entry[i].type;
bus = dev_priv->dcb_table.entry[i].bus;
/* already done? */
if (bus_mask & (1 << bus))
continue;
/* only do it for supported outputs */
if (type != DCB_OUTPUT_ANALOG && type != DCB_OUTPUT_TMDS
&& type != DCB_OUTPUT_LVDS)
continue;
switch (type) {
case DCB_OUTPUT_TMDS:
case DCB_OUTPUT_ANALOG:
if ((bus_digital & (1 << bus)) && (bus_analog & (1 << bus)))
connector_type = CONNECTOR_DVI_I;
else if (bus_digital & (1 << bus))
connector_type = CONNECTOR_DVI_D;
else if (bus_analog & (1 << bus))
connector_type = CONNECTOR_VGA;
break;
case DCB_OUTPUT_LVDS:
connector_type = CONNECTOR_LVDS;
break;
default:
connector_type = CONNECTOR_UNKNOWN;
break;
}
if (connector_type == CONNECTOR_UNKNOWN)
continue;
nv50_connector_create(dev, bus, dev_priv->dcb_table.entry[i].i2c_index, connector_type);
bus_mask |= (1 << bus);
}
display->dev = dev;
/* function pointers */
display->init = nv50_display_init;
display->pre_init = nv50_display_pre_init;
display->disable = nv50_display_disable;
display->update = nv50_display_update;
return 0;
}
int nv50_display_destroy(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_display *display = nv50_get_display(dev);
struct nv50_crtc *crtc = NULL;
struct nv50_output *output = NULL;
struct nv50_connector *connector = NULL;
NV50_DEBUG("\n");
if (display->init_done)
display->disable(display);
list_for_each_entry(connector, &display->connectors, item) {
connector->destroy(connector);
}
list_for_each_entry(output, &display->outputs, item) {
output->destroy(output);
}
list_for_each_entry(crtc, &display->crtcs, item) {
crtc->destroy(crtc);
}
kfree(display);
dev_priv->display_priv = NULL;
return 0;
}
/* This can be replaced with a real fifo in the future. */
void nv50_display_command(struct drm_nouveau_private *dev_priv, uint32_t mthd, uint32_t val)
{
uint32_t counter = 0;
#if 1
DRM_INFO("mthd 0x%03X val 0x%08X\n", mthd, val);
#endif
NV_WRITE(NV50_PDISPLAY_CTRL_VAL, val);
NV_WRITE(NV50_PDISPLAY_CTRL_STATE, NV50_PDISPLAY_CTRL_STATE_PENDING | 0x10000 | mthd | NV50_PDISPLAY_CTRL_STATE_ENABLE);
while (NV_READ(NV50_PDISPLAY_CTRL_STATE) & NV50_PDISPLAY_CTRL_STATE_PENDING) {
counter++;
if (counter > 1000000) {
DRM_ERROR("You probably need a reboot now\n");
break;
}
udelay(1);
}
}
struct nv50_display *nv50_get_display(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
return (struct nv50_display *) dev_priv->display_priv;
}
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