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path: root/drivers/block/ps3vram.c
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Diffstat (limited to 'drivers/block/ps3vram.c')
-rw-r--r--drivers/block/ps3vram.c168
1 files changed, 88 insertions, 80 deletions
diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c
index 8eddef373a91..095f97e60665 100644
--- a/drivers/block/ps3vram.c
+++ b/drivers/block/ps3vram.c
@@ -14,8 +14,10 @@
#include <linux/seq_file.h>
#include <asm/firmware.h>
+#include <asm/iommu.h>
#include <asm/lv1call.h>
#include <asm/ps3.h>
+#include <asm/ps3gpu.h>
#define DEVICE_NAME "ps3vram"
@@ -45,8 +47,6 @@
#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c
#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104
-#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
-
#define CACHE_PAGE_PRESENT 1
#define CACHE_PAGE_DIRTY 2
@@ -72,8 +72,7 @@ struct ps3vram_priv {
u64 memory_handle;
u64 context_handle;
u32 *ctrl;
- u32 *reports;
- u8 __iomem *ddr_base;
+ void *reports;
u8 *xdr_buf;
u32 *fifo_base;
@@ -81,8 +80,8 @@ struct ps3vram_priv {
struct ps3vram_cache cache;
- /* Used to serialize cache/DMA operations */
- struct mutex lock;
+ spinlock_t lock; /* protecting list of bios */
+ struct bio_list list;
};
@@ -103,15 +102,15 @@ static char *size = "256M";
module_param(size, charp, 0);
MODULE_PARM_DESC(size, "memory size");
-static u32 *ps3vram_get_notifier(u32 *reports, int notifier)
+static u32 *ps3vram_get_notifier(void *reports, int notifier)
{
- return (void *)reports + DMA_NOTIFIER_OFFSET_BASE +
+ return reports + DMA_NOTIFIER_OFFSET_BASE +
DMA_NOTIFIER_SIZE * notifier;
}
static void ps3vram_notifier_reset(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
int i;
@@ -122,7 +121,7 @@ static void ps3vram_notifier_reset(struct ps3_system_bus_device *dev)
static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev,
unsigned int timeout_ms)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER);
unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
@@ -137,7 +136,7 @@ static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev,
static void ps3vram_init_ring(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET;
@@ -146,7 +145,7 @@ static void ps3vram_init_ring(struct ps3_system_bus_device *dev)
static int ps3vram_wait_ring(struct ps3_system_bus_device *dev,
unsigned int timeout_ms)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms);
do {
@@ -175,7 +174,7 @@ static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan, u32 tag,
static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
int status;
ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET));
@@ -183,20 +182,17 @@ static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev)
priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET;
/* asking the HV for a blit will kick the FIFO */
- status = lv1_gpu_context_attribute(priv->context_handle,
- L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
- 0, 0, 0);
+ status = lv1_gpu_fb_blit(priv->context_handle, 0, 0, 0, 0);
if (status)
- dev_err(&dev->core,
- "%s: lv1_gpu_context_attribute failed %d\n", __func__,
- status);
+ dev_err(&dev->core, "%s: lv1_gpu_fb_blit failed %d\n",
+ __func__, status);
priv->fifo_ptr = priv->fifo_base;
}
static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
int status;
mutex_lock(&ps3_gpu_mutex);
@@ -205,13 +201,10 @@ static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
(priv->fifo_ptr - priv->fifo_base) * sizeof(u32);
/* asking the HV for a blit will kick the FIFO */
- status = lv1_gpu_context_attribute(priv->context_handle,
- L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, 0,
- 0, 0, 0);
+ status = lv1_gpu_fb_blit(priv->context_handle, 0, 0, 0, 0);
if (status)
- dev_err(&dev->core,
- "%s: lv1_gpu_context_attribute failed %d\n", __func__,
- status);
+ dev_err(&dev->core, "%s: lv1_gpu_fb_blit failed %d\n",
+ __func__, status);
if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) >
FIFO_SIZE - 1024) {
@@ -225,7 +218,7 @@ static void ps3vram_fire_ring(struct ps3_system_bus_device *dev)
static void ps3vram_bind(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1);
ps3vram_out_ring(priv, 0x31337303);
@@ -248,7 +241,7 @@ static int ps3vram_upload(struct ps3_system_bus_device *dev,
unsigned int src_offset, unsigned int dst_offset,
int len, int count)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
ps3vram_begin_ring(priv, UPLOAD_SUBCH,
NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
@@ -280,7 +273,7 @@ static int ps3vram_download(struct ps3_system_bus_device *dev,
unsigned int src_offset, unsigned int dst_offset,
int len, int count)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
ps3vram_begin_ring(priv, DOWNLOAD_SUBCH,
NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8);
@@ -310,7 +303,7 @@ static int ps3vram_download(struct ps3_system_bus_device *dev,
static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
struct ps3vram_cache *cache = &priv->cache;
if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY))
@@ -332,7 +325,7 @@ static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry)
static void ps3vram_cache_load(struct ps3_system_bus_device *dev, int entry,
unsigned int address)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
struct ps3vram_cache *cache = &priv->cache;
dev_dbg(&dev->core, "Fetching %d: 0x%08x\n", entry, address);
@@ -352,7 +345,7 @@ static void ps3vram_cache_load(struct ps3_system_bus_device *dev, int entry,
static void ps3vram_cache_flush(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
struct ps3vram_cache *cache = &priv->cache;
int i;
@@ -366,7 +359,7 @@ static void ps3vram_cache_flush(struct ps3_system_bus_device *dev)
static unsigned int ps3vram_cache_match(struct ps3_system_bus_device *dev,
loff_t address)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
struct ps3vram_cache *cache = &priv->cache;
unsigned int base;
unsigned int offset;
@@ -400,7 +393,7 @@ static unsigned int ps3vram_cache_match(struct ps3_system_bus_device *dev,
static int ps3vram_cache_init(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
priv->cache.page_count = CACHE_PAGE_COUNT;
priv->cache.page_size = CACHE_PAGE_SIZE;
@@ -419,7 +412,7 @@ static int ps3vram_cache_init(struct ps3_system_bus_device *dev)
static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
ps3vram_cache_flush(dev);
kfree(priv->cache.tags);
@@ -428,7 +421,7 @@ static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev)
static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
size_t len, size_t *retlen, u_char *buf)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
unsigned int cached, count;
dev_dbg(&dev->core, "%s: from=0x%08x len=0x%zx\n", __func__,
@@ -449,8 +442,6 @@ static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
offset = (unsigned int) (from & (priv->cache.page_size - 1));
avail = priv->cache.page_size - offset;
- mutex_lock(&priv->lock);
-
entry = ps3vram_cache_match(dev, from);
cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
@@ -462,8 +453,6 @@ static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
avail = count;
memcpy(buf, priv->xdr_buf + cached, avail);
- mutex_unlock(&priv->lock);
-
buf += avail;
count -= avail;
from += avail;
@@ -476,7 +465,7 @@ static int ps3vram_read(struct ps3_system_bus_device *dev, loff_t from,
static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
size_t len, size_t *retlen, const u_char *buf)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
unsigned int cached, count;
if (to >= priv->size)
@@ -494,8 +483,6 @@ static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
offset = (unsigned int) (to & (priv->cache.page_size - 1));
avail = priv->cache.page_size - offset;
- mutex_lock(&priv->lock);
-
entry = ps3vram_cache_match(dev, to);
cached = CACHE_OFFSET + entry * priv->cache.page_size + offset;
@@ -509,8 +496,6 @@ static int ps3vram_write(struct ps3_system_bus_device *dev, loff_t to,
priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY;
- mutex_unlock(&priv->lock);
-
buf += avail;
count -= avail;
to += avail;
@@ -543,28 +528,26 @@ static const struct file_operations ps3vram_proc_fops = {
static void __devinit ps3vram_proc_init(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
struct proc_dir_entry *pde;
- pde = proc_create(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops);
- if (!pde) {
+ pde = proc_create_data(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops,
+ priv);
+ if (!pde)
dev_warn(&dev->core, "failed to create /proc entry\n");
- return;
- }
- pde->data = priv;
}
-static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
+static struct bio *ps3vram_do_bio(struct ps3_system_bus_device *dev,
+ struct bio *bio)
{
- struct ps3_system_bus_device *dev = q->queuedata;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
int write = bio_data_dir(bio) == WRITE;
const char *op = write ? "write" : "read";
loff_t offset = bio->bi_sector << 9;
int error = 0;
struct bio_vec *bvec;
unsigned int i;
-
- dev_dbg(&dev->core, "%s\n", __func__);
+ struct bio *next;
bio_for_each_segment(bvec, bio, i) {
/* PS3 is ppc64, so we don't handle highmem */
@@ -585,6 +568,7 @@ static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
if (retlen != len) {
dev_err(&dev->core, "Short %s\n", op);
+ error = -EIO;
goto out;
}
@@ -594,7 +578,35 @@ static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
dev_dbg(&dev->core, "%s completed\n", op);
out:
+ spin_lock_irq(&priv->lock);
+ bio_list_pop(&priv->list);
+ next = bio_list_peek(&priv->list);
+ spin_unlock_irq(&priv->lock);
+
bio_endio(bio, error);
+ return next;
+}
+
+static int ps3vram_make_request(struct request_queue *q, struct bio *bio)
+{
+ struct ps3_system_bus_device *dev = q->queuedata;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
+ int busy;
+
+ dev_dbg(&dev->core, "%s\n", __func__);
+
+ spin_lock_irq(&priv->lock);
+ busy = !bio_list_empty(&priv->list);
+ bio_list_add(&priv->list, bio);
+ spin_unlock_irq(&priv->lock);
+
+ if (busy)
+ return 0;
+
+ do {
+ bio = ps3vram_do_bio(dev, bio);
+ } while (bio);
+
return 0;
}
@@ -604,8 +616,8 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
int error, status;
struct request_queue *queue;
struct gendisk *gendisk;
- u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size,
- reports_size;
+ u64 ddr_size, ddr_lpar, ctrl_lpar, info_lpar, reports_lpar,
+ reports_size, xdr_lpar;
char *rest;
priv = kzalloc(sizeof(*priv), GFP_KERNEL);
@@ -614,10 +626,9 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
goto fail;
}
- mutex_init(&priv->lock);
- dev->core.driver_data = priv;
-
- priv = dev->core.driver_data;
+ spin_lock_init(&priv->lock);
+ bio_list_init(&priv->list);
+ ps3_system_bus_set_drvdata(dev, priv);
/* Allocate XDR buffer (1MiB aligned) */
priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL,
@@ -636,7 +647,7 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
if (ps3_open_hv_device(dev)) {
dev_err(&dev->core, "ps3_open_hv_device failed\n");
error = -EAGAIN;
- goto out_close_gpu;
+ goto out_free_xdr_buf;
}
/* Request memory */
@@ -660,7 +671,7 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
dev_err(&dev->core, "lv1_gpu_memory_allocate failed %d\n",
status);
error = -ENOMEM;
- goto out_free_xdr_buf;
+ goto out_close_gpu;
}
/* Request context */
@@ -676,9 +687,11 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
}
/* Map XDR buffer to RSX */
+ xdr_lpar = ps3_mm_phys_to_lpar(__pa(priv->xdr_buf));
status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
- ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
- XDR_BUF_SIZE, 0);
+ xdr_lpar, XDR_BUF_SIZE,
+ CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
+ CBE_IOPTE_M);
if (status) {
dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n",
status);
@@ -686,19 +699,11 @@ static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev)
goto out_free_context;
}
- priv->ddr_base = ioremap_flags(ddr_lpar, ddr_size, _PAGE_NO_CACHE);
-
- if (!priv->ddr_base) {
- dev_err(&dev->core, "ioremap DDR failed\n");
- error = -ENOMEM;
- goto out_free_context;
- }
-
priv->ctrl = ioremap(ctrl_lpar, 64 * 1024);
if (!priv->ctrl) {
dev_err(&dev->core, "ioremap CTRL failed\n");
error = -ENOMEM;
- goto out_unmap_vram;
+ goto out_unmap_context;
}
priv->reports = ioremap(reports_lpar, reports_size);
@@ -775,8 +780,9 @@ out_unmap_reports:
iounmap(priv->reports);
out_unmap_ctrl:
iounmap(priv->ctrl);
-out_unmap_vram:
- iounmap(priv->ddr_base);
+out_unmap_context:
+ lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, xdr_lpar,
+ XDR_BUF_SIZE, CBE_IOPTE_M);
out_free_context:
lv1_gpu_context_free(priv->context_handle);
out_free_memory:
@@ -787,14 +793,14 @@ out_free_xdr_buf:
free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
fail_free_priv:
kfree(priv);
- dev->core.driver_data = NULL;
+ ps3_system_bus_set_drvdata(dev, NULL);
fail:
return error;
}
static int ps3vram_remove(struct ps3_system_bus_device *dev)
{
- struct ps3vram_priv *priv = dev->core.driver_data;
+ struct ps3vram_priv *priv = ps3_system_bus_get_drvdata(dev);
del_gendisk(priv->gendisk);
put_disk(priv->gendisk);
@@ -803,13 +809,15 @@ static int ps3vram_remove(struct ps3_system_bus_device *dev)
ps3vram_cache_cleanup(dev);
iounmap(priv->reports);
iounmap(priv->ctrl);
- iounmap(priv->ddr_base);
+ lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF,
+ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)),
+ XDR_BUF_SIZE, CBE_IOPTE_M);
lv1_gpu_context_free(priv->context_handle);
lv1_gpu_memory_free(priv->memory_handle);
ps3_close_hv_device(dev);
free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE));
kfree(priv);
- dev->core.driver_data = NULL;
+ ps3_system_bus_set_drvdata(dev, NULL);
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 22:16:53 +0000