From b552a51b7c9c490b84cd3e28c2da82e1794f1fec Mon Sep 17 00:00:00 2001 From: Geoff Levand Date: Wed, 26 Aug 2009 22:00:33 +0000 Subject: ps3: Remove support for linux-2.6.28 Signed-off-by: Geoff Levand git-svn-id: svn://svn.openwrt.org/openwrt/trunk@17412 3c298f89-4303-0410-b956-a3cf2f4a3e73 --- ...am-Add-ps3vram-driver-for-accessing-video.patch | 920 --------------------- 1 file changed, 920 deletions(-) delete mode 100644 target/linux/ps3/patches-2.6.28/0007-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch (limited to 'target/linux/ps3/patches-2.6.28/0007-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch') diff --git a/target/linux/ps3/patches-2.6.28/0007-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch b/target/linux/ps3/patches-2.6.28/0007-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch deleted file mode 100644 index 9278afe5ca..0000000000 --- a/target/linux/ps3/patches-2.6.28/0007-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch +++ /dev/null @@ -1,920 +0,0 @@ -From cffb4add03b1fc83026b06dc3664279cfbf70155 Mon Sep 17 00:00:00 2001 -From: Jim Paris -Date: Tue, 6 Jan 2009 11:32:10 +0000 -Subject: [PATCH] mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD - -Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD -device suitable for storage or swap. Fast data transfer is achieved -using a local cache in system RAM and DMA transfers via the GPU. - -Signed-off-by: Vivien Chappelier -Signed-off-by: Jim Paris -Acked-by: Geoff Levand -Acked-by: David Woodhouse -Signed-off-by: Benjamin Herrenschmidt ---- - MAINTAINERS | 6 + - arch/powerpc/include/asm/ps3.h | 1 + - arch/powerpc/platforms/ps3/device-init.c | 37 ++ - drivers/mtd/devices/Kconfig | 7 + - drivers/mtd/devices/Makefile | 1 + - drivers/mtd/devices/ps3vram.c | 776 ++++++++++++++++++++++++++++++ - 6 files changed, 828 insertions(+), 0 deletions(-) - create mode 100644 drivers/mtd/devices/ps3vram.c - -diff --git a/MAINTAINERS b/MAINTAINERS -index a018844..246878f 100644 ---- a/MAINTAINERS -+++ b/MAINTAINERS -@@ -3484,6 +3484,12 @@ L: linuxppc-dev@ozlabs.org - L: cbe-oss-dev@ozlabs.org - S: Supported - -+PS3VRAM DRIVER -+P: Jim Paris -+M: jim@jtan.com -+L: cbe-oss-dev@ozlabs.org -+S: Maintained -+ - PVRUSB2 VIDEO4LINUX DRIVER - P: Mike Isely - M: isely@pobox.com -diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h -index cff30c0..66b6505 100644 ---- a/arch/powerpc/include/asm/ps3.h -+++ b/arch/powerpc/include/asm/ps3.h -@@ -320,6 +320,7 @@ enum ps3_match_id { - - enum ps3_match_sub_id { - PS3_MATCH_SUB_ID_GPU_FB = 1, -+ PS3_MATCH_SUB_ID_GPU_RAMDISK = 2, - }; - - #define PS3_MODULE_ALIAS_EHCI "ps3:1:0" -diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c -index dbc124e..ca71a12 100644 ---- a/arch/powerpc/platforms/ps3/device-init.c -+++ b/arch/powerpc/platforms/ps3/device-init.c -@@ -518,6 +518,41 @@ fail_device_register: - return result; - } - -+static int __init ps3_register_ramdisk_device(void) -+{ -+ int result; -+ struct layout { -+ struct ps3_system_bus_device dev; -+ } *p; -+ -+ pr_debug(" -> %s:%d\n", __func__, __LINE__); -+ -+ p = kzalloc(sizeof(struct layout), GFP_KERNEL); -+ -+ if (!p) -+ return -ENOMEM; -+ -+ p->dev.match_id = PS3_MATCH_ID_GPU; -+ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK; -+ p->dev.dev_type = PS3_DEVICE_TYPE_IOC0; -+ -+ result = ps3_system_bus_device_register(&p->dev); -+ -+ if (result) { -+ pr_debug("%s:%d ps3_system_bus_device_register failed\n", -+ __func__, __LINE__); -+ goto fail_device_register; -+ } -+ -+ pr_debug(" <- %s:%d\n", __func__, __LINE__); -+ return 0; -+ -+fail_device_register: -+ kfree(p); -+ pr_debug(" <- %s:%d failed\n", __func__, __LINE__); -+ return result; -+} -+ - /** - * ps3_setup_dynamic_device - Setup a dynamic device from the repository - */ -@@ -946,6 +981,8 @@ static int __init ps3_register_devices(void) - - ps3_register_lpm_devices(); - -+ ps3_register_ramdisk_device(); -+ - pr_debug(" <- %s:%d\n", __func__, __LINE__); - return 0; - } -diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig -index 6fde0a2..bc33200 100644 ---- a/drivers/mtd/devices/Kconfig -+++ b/drivers/mtd/devices/Kconfig -@@ -120,6 +120,13 @@ config MTD_PHRAM - doesn't have access to, memory beyond the mem=xxx limit, nvram, - memory on the video card, etc... - -+config MTD_PS3VRAM -+ tristate "PS3 video RAM" -+ depends on FB_PS3 -+ help -+ This driver allows you to use excess PS3 video RAM as volatile -+ storage or system swap. -+ - config MTD_LART - tristate "28F160xx flash driver for LART" - depends on SA1100_LART -diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile -index 0993d5c..e51521d 100644 ---- a/drivers/mtd/devices/Makefile -+++ b/drivers/mtd/devices/Makefile -@@ -16,3 +16,4 @@ obj-$(CONFIG_MTD_LART) += lart.o - obj-$(CONFIG_MTD_BLOCK2MTD) += block2mtd.o - obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o - obj-$(CONFIG_MTD_M25P80) += m25p80.o -+obj-$(CONFIG_MTD_PS3VRAM) += ps3vram.o -diff --git a/drivers/mtd/devices/ps3vram.c b/drivers/mtd/devices/ps3vram.c -new file mode 100644 -index 0000000..26a4b57 ---- /dev/null -+++ b/drivers/mtd/devices/ps3vram.c -@@ -0,0 +1,776 @@ -+/** -+ * ps3vram - Use extra PS3 video ram as MTD block device. -+ * -+ * Copyright (c) 2007-2008 Jim Paris -+ * Added support RSX DMA Vivien Chappelier -+ */ -+ -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+#include -+ -+#include -+#include -+ -+#define DEVICE_NAME "ps3vram" -+ -+#define XDR_BUF_SIZE (2 * 1024 * 1024) /* XDR buffer (must be 1MiB aligned) */ -+#define XDR_IOIF 0x0c000000 -+ -+#define FIFO_BASE XDR_IOIF -+#define FIFO_SIZE (64 * 1024) -+ -+#define DMA_PAGE_SIZE (4 * 1024) -+ -+#define CACHE_PAGE_SIZE (256 * 1024) -+#define CACHE_PAGE_COUNT ((XDR_BUF_SIZE - FIFO_SIZE) / CACHE_PAGE_SIZE) -+ -+#define CACHE_OFFSET CACHE_PAGE_SIZE -+#define FIFO_OFFSET 0 -+ -+#define CTRL_PUT 0x10 -+#define CTRL_GET 0x11 -+#define CTRL_TOP 0x15 -+ -+#define UPLOAD_SUBCH 1 -+#define DOWNLOAD_SUBCH 2 -+ -+#define NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN 0x0000030c -+#define NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY 0x00000104 -+ -+#define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601 -+ -+struct mtd_info ps3vram_mtd; -+ -+#define CACHE_PAGE_PRESENT 1 -+#define CACHE_PAGE_DIRTY 2 -+ -+#define dbg(fmt, args...) \ -+ pr_debug("%s:%d " fmt "\n", __func__, __LINE__, ## args) -+ -+struct ps3vram_tag { -+ unsigned int address; -+ unsigned int flags; -+}; -+ -+struct ps3vram_cache { -+ unsigned int page_count; -+ unsigned int page_size; -+ struct ps3vram_tag *tags; -+}; -+ -+struct ps3vram_priv { -+ uint64_t memory_handle; -+ uint64_t context_handle; -+ uint8_t *base; -+ uint32_t *ctrl; -+ uint32_t *reports; -+ uint8_t *xdr_buf; -+ -+ uint32_t *fifo_base; -+ uint32_t *fifo_ptr; -+ -+ struct ps3vram_cache cache; -+ -+ /* Used to serialize cache/DMA operations */ -+ struct mutex lock; -+}; -+ -+#define DMA_NOTIFIER_HANDLE_BASE 0x66604200 /* first DMA notifier handle */ -+#define DMA_NOTIFIER_OFFSET_BASE 0x1000 /* first DMA notifier offset */ -+#define DMA_NOTIFIER_SIZE 0x40 -+ -+#define NUM_NOTIFIERS 16 -+ -+#define NOTIFIER 7 /* notifier used for completion report */ -+ -+/* A trailing '-' means to subtract off ps3fb_videomemory.size */ -+char *size = "256M-"; -+module_param(size, charp, 0); -+MODULE_PARM_DESC(size, "memory size"); -+ -+static inline uint32_t *ps3vram_get_notifier(uint32_t *reports, int notifier) -+{ -+ return (void *) reports + -+ DMA_NOTIFIER_OFFSET_BASE + -+ DMA_NOTIFIER_SIZE * notifier; -+} -+ -+static void ps3vram_notifier_reset(struct mtd_info *mtd) -+{ -+ int i; -+ struct ps3vram_priv *priv = mtd->priv; -+ uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER); -+ for (i = 0; i < 4; i++) -+ notify[i] = 0xffffffff; -+} -+ -+static int ps3vram_notifier_wait(struct mtd_info *mtd, int timeout_ms) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ uint32_t *notify = ps3vram_get_notifier(priv->reports, NOTIFIER); -+ -+ timeout_ms *= 1000; -+ -+ do { -+ if (notify[3] == 0) -+ return 0; -+ -+ if (timeout_ms) -+ udelay(1); -+ } while (timeout_ms--); -+ -+ return -1; -+} -+ -+static void ps3vram_dump_ring(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ uint32_t *fifo; -+ -+ pr_info("PUT = %08x GET = %08x\n", priv->ctrl[CTRL_PUT], -+ priv->ctrl[CTRL_GET]); -+ for (fifo = priv->fifo_base; fifo < priv->fifo_ptr; fifo++) -+ pr_info("%p: %08x\n", fifo, *fifo); -+} -+ -+static void ps3vram_dump_reports(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ int i; -+ -+ for (i = 0; i < NUM_NOTIFIERS; i++) { -+ uint32_t *n = ps3vram_get_notifier(priv->reports, i); -+ pr_info("%p: %08x\n", n, *n); -+ } -+} -+ -+static void ps3vram_init_ring(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET; -+ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET; -+} -+ -+static int ps3vram_wait_ring(struct mtd_info *mtd, int timeout) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ /* wait until setup commands are processed */ -+ timeout *= 1000; -+ while (--timeout) { -+ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET]) -+ break; -+ udelay(1); -+ } -+ if (timeout == 0) { -+ pr_err("FIFO timeout (%08x/%08x/%08x)\n", priv->ctrl[CTRL_PUT], -+ priv->ctrl[CTRL_GET], priv->ctrl[CTRL_TOP]); -+ return -ETIMEDOUT; -+ } -+ -+ return 0; -+} -+ -+static inline void ps3vram_out_ring(struct ps3vram_priv *priv, uint32_t data) -+{ -+ *(priv->fifo_ptr)++ = data; -+} -+ -+static inline void ps3vram_begin_ring(struct ps3vram_priv *priv, uint32_t chan, -+ uint32_t tag, uint32_t size) -+{ -+ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag); -+} -+ -+static void ps3vram_rewind_ring(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ u64 status; -+ -+ ps3vram_out_ring(priv, 0x20000000 | (FIFO_BASE + FIFO_OFFSET)); -+ -+ 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); -+ if (status) -+ pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n"); -+ -+ priv->fifo_ptr = priv->fifo_base; -+} -+ -+static void ps3vram_fire_ring(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ u64 status; -+ -+ mutex_lock(&ps3_gpu_mutex); -+ -+ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET + -+ (priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t); -+ -+ /* 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); -+ if (status) -+ pr_err("ps3vram: lv1_gpu_context_attribute FB_BLIT failed\n"); -+ -+ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(uint32_t) > -+ FIFO_SIZE - 1024) { -+ dbg("fifo full, rewinding"); -+ ps3vram_wait_ring(mtd, 200); -+ ps3vram_rewind_ring(mtd); -+ } -+ -+ mutex_unlock(&ps3_gpu_mutex); -+} -+ -+static void ps3vram_bind(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0, 1); -+ ps3vram_out_ring(priv, 0x31337303); -+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x180, 3); -+ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER); -+ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */ -+ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */ -+ -+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0, 1); -+ ps3vram_out_ring(priv, 0x3137c0de); -+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x180, 3); -+ ps3vram_out_ring(priv, DMA_NOTIFIER_HANDLE_BASE + NOTIFIER); -+ ps3vram_out_ring(priv, 0xfeed0000); /* DMA video RAM instance */ -+ ps3vram_out_ring(priv, 0xfeed0001); /* DMA system RAM instance */ -+ -+ ps3vram_fire_ring(mtd); -+} -+ -+static int ps3vram_upload(struct mtd_info *mtd, unsigned int src_offset, -+ unsigned int dst_offset, int len, int count) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, -+ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8); -+ ps3vram_out_ring(priv, XDR_IOIF + src_offset); -+ ps3vram_out_ring(priv, dst_offset); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, count); -+ ps3vram_out_ring(priv, (1 << 8) | 1); -+ ps3vram_out_ring(priv, 0); -+ -+ ps3vram_notifier_reset(mtd); -+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, -+ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1); -+ ps3vram_out_ring(priv, 0); -+ ps3vram_begin_ring(priv, UPLOAD_SUBCH, 0x100, 1); -+ ps3vram_out_ring(priv, 0); -+ ps3vram_fire_ring(mtd); -+ if (ps3vram_notifier_wait(mtd, 200) < 0) { -+ pr_err("notifier timeout\n"); -+ ps3vram_dump_ring(mtd); -+ ps3vram_dump_reports(mtd); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+static int ps3vram_download(struct mtd_info *mtd, unsigned int src_offset, -+ unsigned int dst_offset, int len, int count) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, -+ NV_MEMORY_TO_MEMORY_FORMAT_OFFSET_IN, 8); -+ ps3vram_out_ring(priv, src_offset); -+ ps3vram_out_ring(priv, XDR_IOIF + dst_offset); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, len); -+ ps3vram_out_ring(priv, count); -+ ps3vram_out_ring(priv, (1 << 8) | 1); -+ ps3vram_out_ring(priv, 0); -+ -+ ps3vram_notifier_reset(mtd); -+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, -+ NV_MEMORY_TO_MEMORY_FORMAT_NOTIFY, 1); -+ ps3vram_out_ring(priv, 0); -+ ps3vram_begin_ring(priv, DOWNLOAD_SUBCH, 0x100, 1); -+ ps3vram_out_ring(priv, 0); -+ ps3vram_fire_ring(mtd); -+ if (ps3vram_notifier_wait(mtd, 200) < 0) { -+ pr_err("notifier timeout\n"); -+ ps3vram_dump_ring(mtd); -+ ps3vram_dump_reports(mtd); -+ return -1; -+ } -+ -+ return 0; -+} -+ -+static void ps3vram_cache_evict(struct mtd_info *mtd, int entry) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ struct ps3vram_cache *cache = &priv->cache; -+ -+ if (cache->tags[entry].flags & CACHE_PAGE_DIRTY) { -+ dbg("flushing %d : 0x%08x", entry, cache->tags[entry].address); -+ if (ps3vram_upload(mtd, -+ CACHE_OFFSET + entry * cache->page_size, -+ cache->tags[entry].address, -+ DMA_PAGE_SIZE, -+ cache->page_size / DMA_PAGE_SIZE) < 0) { -+ pr_err("failed to upload from 0x%x to 0x%x size 0x%x\n", -+ entry * cache->page_size, -+ cache->tags[entry].address, -+ cache->page_size); -+ } -+ cache->tags[entry].flags &= ~CACHE_PAGE_DIRTY; -+ } -+} -+ -+static void ps3vram_cache_load(struct mtd_info *mtd, int entry, -+ unsigned int address) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ struct ps3vram_cache *cache = &priv->cache; -+ -+ dbg("fetching %d : 0x%08x", entry, address); -+ if (ps3vram_download(mtd, -+ address, -+ CACHE_OFFSET + entry * cache->page_size, -+ DMA_PAGE_SIZE, -+ cache->page_size / DMA_PAGE_SIZE) < 0) { -+ pr_err("failed to download from 0x%x to 0x%x size 0x%x\n", -+ address, -+ entry * cache->page_size, -+ cache->page_size); -+ } -+ -+ cache->tags[entry].address = address; -+ cache->tags[entry].flags |= CACHE_PAGE_PRESENT; -+} -+ -+ -+static void ps3vram_cache_flush(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ struct ps3vram_cache *cache = &priv->cache; -+ int i; -+ -+ dbg("FLUSH"); -+ for (i = 0; i < cache->page_count; i++) { -+ ps3vram_cache_evict(mtd, i); -+ cache->tags[i].flags = 0; -+ } -+} -+ -+static unsigned int ps3vram_cache_match(struct mtd_info *mtd, loff_t address) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ struct ps3vram_cache *cache = &priv->cache; -+ unsigned int base; -+ unsigned int offset; -+ int i; -+ static int counter; -+ -+ offset = (unsigned int) (address & (cache->page_size - 1)); -+ base = (unsigned int) (address - offset); -+ -+ /* fully associative check */ -+ for (i = 0; i < cache->page_count; i++) { -+ if ((cache->tags[i].flags & CACHE_PAGE_PRESENT) && -+ cache->tags[i].address == base) { -+ dbg("found entry %d : 0x%08x", -+ i, cache->tags[i].address); -+ return i; -+ } -+ } -+ -+ /* choose a random entry */ -+ i = (jiffies + (counter++)) % cache->page_count; -+ dbg("using cache entry %d", i); -+ -+ ps3vram_cache_evict(mtd, i); -+ ps3vram_cache_load(mtd, i, base); -+ -+ return i; -+} -+ -+static int ps3vram_cache_init(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ pr_info("creating cache: %d entries, %d bytes pages\n", -+ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE); -+ -+ priv->cache.page_count = CACHE_PAGE_COUNT; -+ priv->cache.page_size = CACHE_PAGE_SIZE; -+ priv->cache.tags = kzalloc(sizeof(struct ps3vram_tag) * -+ CACHE_PAGE_COUNT, GFP_KERNEL); -+ if (priv->cache.tags == NULL) { -+ pr_err("could not allocate cache tags\n"); -+ return -ENOMEM; -+ } -+ -+ return 0; -+} -+ -+static void ps3vram_cache_cleanup(struct mtd_info *mtd) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ ps3vram_cache_flush(mtd); -+ kfree(priv->cache.tags); -+} -+ -+static int ps3vram_erase(struct mtd_info *mtd, struct erase_info *instr) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ -+ if (instr->addr + instr->len > mtd->size) -+ return -EINVAL; -+ -+ mutex_lock(&priv->lock); -+ -+ ps3vram_cache_flush(mtd); -+ -+ /* Set bytes to 0xFF */ -+ memset(priv->base + instr->addr, 0xFF, instr->len); -+ -+ mutex_unlock(&priv->lock); -+ -+ instr->state = MTD_ERASE_DONE; -+ mtd_erase_callback(instr); -+ -+ return 0; -+} -+ -+ -+static int ps3vram_read(struct mtd_info *mtd, loff_t from, size_t len, -+ size_t *retlen, u_char *buf) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ unsigned int cached, count; -+ -+ dbg("from = 0x%08x len = 0x%zx", (unsigned int) from, len); -+ -+ if (from >= mtd->size) -+ return -EINVAL; -+ -+ if (len > mtd->size - from) -+ len = mtd->size - from; -+ -+ /* Copy from vram to buf */ -+ count = len; -+ while (count) { -+ unsigned int offset, avail; -+ unsigned int entry; -+ -+ offset = (unsigned int) (from & (priv->cache.page_size - 1)); -+ avail = priv->cache.page_size - offset; -+ -+ mutex_lock(&priv->lock); -+ -+ entry = ps3vram_cache_match(mtd, from); -+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset; -+ -+ dbg("from=%08x cached=%08x offset=%08x avail=%08x count=%08x", -+ (unsigned)from, cached, offset, avail, count); -+ -+ if (avail > count) -+ avail = count; -+ memcpy(buf, priv->xdr_buf + cached, avail); -+ -+ mutex_unlock(&priv->lock); -+ -+ buf += avail; -+ count -= avail; -+ from += avail; -+ } -+ -+ *retlen = len; -+ return 0; -+} -+ -+static int ps3vram_write(struct mtd_info *mtd, loff_t to, size_t len, -+ size_t *retlen, const u_char *buf) -+{ -+ struct ps3vram_priv *priv = mtd->priv; -+ unsigned int cached, count; -+ -+ if (to >= mtd->size) -+ return -EINVAL; -+ -+ if (len > mtd->size - to) -+ len = mtd->size - to; -+ -+ /* Copy from buf to vram */ -+ count = len; -+ while (count) { -+ unsigned int offset, avail; -+ unsigned int entry; -+ -+ offset = (unsigned int) (to & (priv->cache.page_size - 1)); -+ avail = priv->cache.page_size - offset; -+ -+ mutex_lock(&priv->lock); -+ -+ entry = ps3vram_cache_match(mtd, to); -+ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset; -+ -+ dbg("to=%08x cached=%08x offset=%08x avail=%08x count=%08x", -+ (unsigned) to, cached, offset, avail, count); -+ -+ if (avail > count) -+ avail = count; -+ memcpy(priv->xdr_buf + cached, buf, avail); -+ -+ priv->cache.tags[entry].flags |= CACHE_PAGE_DIRTY; -+ -+ mutex_unlock(&priv->lock); -+ -+ buf += avail; -+ count -= avail; -+ to += avail; -+ } -+ -+ *retlen = len; -+ return 0; -+} -+ -+static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) -+{ -+ struct ps3vram_priv *priv; -+ uint64_t status; -+ uint64_t ddr_lpar, ctrl_lpar, info_lpar, reports_lpar; -+ int64_t ddr_size; -+ uint64_t reports_size; -+ int ret = -ENOMEM; -+ char *rest; -+ -+ ret = -EIO; -+ ps3vram_mtd.priv = kzalloc(sizeof(struct ps3vram_priv), GFP_KERNEL); -+ if (!ps3vram_mtd.priv) -+ goto out; -+ priv = ps3vram_mtd.priv; -+ -+ mutex_init(&priv->lock); -+ -+ /* Allocate XDR buffer (1MiB aligned) */ -+ priv->xdr_buf = (uint8_t *) __get_free_pages(GFP_KERNEL, -+ get_order(XDR_BUF_SIZE)); -+ if (priv->xdr_buf == NULL) { -+ pr_err("ps3vram: could not allocate XDR buffer\n"); -+ ret = -ENOMEM; -+ goto out_free_priv; -+ } -+ -+ /* Put FIFO at begginning of XDR buffer */ -+ priv->fifo_base = (uint32_t *) (priv->xdr_buf + FIFO_OFFSET); -+ priv->fifo_ptr = priv->fifo_base; -+ -+ /* XXX: Need to open GPU, in case ps3fb or snd_ps3 aren't loaded */ -+ if (ps3_open_hv_device(dev)) { -+ pr_err("ps3vram: ps3_open_hv_device failed\n"); -+ ret = -EAGAIN; -+ goto out_close_gpu; -+ } -+ -+ /* Request memory */ -+ status = -1; -+ ddr_size = memparse(size, &rest); -+ if (*rest == '-') -+ ddr_size -= ps3fb_videomemory.size; -+ ddr_size = ALIGN(ddr_size, 1024*1024); -+ if (ddr_size <= 0) { -+ printk(KERN_ERR "ps3vram: specified size is too small\n"); -+ ret = -EINVAL; -+ goto out_close_gpu; -+ } -+ -+ while (ddr_size > 0) { -+ status = lv1_gpu_memory_allocate(ddr_size, 0, 0, 0, 0, -+ &priv->memory_handle, -+ &ddr_lpar); -+ if (status == 0) -+ break; -+ ddr_size -= 1024*1024; -+ } -+ if (status != 0 || ddr_size <= 0) { -+ pr_err("ps3vram: lv1_gpu_memory_allocate failed\n"); -+ ret = -ENOMEM; -+ goto out_free_xdr_buf; -+ } -+ pr_info("ps3vram: allocated %u MiB of DDR memory\n", -+ (unsigned int) (ddr_size / 1024 / 1024)); -+ -+ /* Request context */ -+ status = lv1_gpu_context_allocate(priv->memory_handle, -+ 0, -+ &priv->context_handle, -+ &ctrl_lpar, -+ &info_lpar, -+ &reports_lpar, -+ &reports_size); -+ if (status) { -+ pr_err("ps3vram: lv1_gpu_context_allocate failed\n"); -+ ret = -ENOMEM; -+ goto out_free_memory; -+ } -+ -+ /* Map XDR buffer to RSX */ -+ status = lv1_gpu_context_iomap(priv->context_handle, XDR_IOIF, -+ ps3_mm_phys_to_lpar(__pa(priv->xdr_buf)), -+ XDR_BUF_SIZE, 0); -+ if (status) { -+ pr_err("ps3vram: lv1_gpu_context_iomap failed\n"); -+ ret = -ENOMEM; -+ goto out_free_context; -+ } -+ -+ priv->base = ioremap(ddr_lpar, ddr_size); -+ if (!priv->base) { -+ pr_err("ps3vram: ioremap failed\n"); -+ ret = -ENOMEM; -+ goto out_free_context; -+ } -+ -+ priv->ctrl = ioremap(ctrl_lpar, 64 * 1024); -+ if (!priv->ctrl) { -+ pr_err("ps3vram: ioremap failed\n"); -+ ret = -ENOMEM; -+ goto out_unmap_vram; -+ } -+ -+ priv->reports = ioremap(reports_lpar, reports_size); -+ if (!priv->reports) { -+ pr_err("ps3vram: ioremap failed\n"); -+ ret = -ENOMEM; -+ goto out_unmap_ctrl; -+ } -+ -+ mutex_lock(&ps3_gpu_mutex); -+ ps3vram_init_ring(&ps3vram_mtd); -+ mutex_unlock(&ps3_gpu_mutex); -+ -+ ps3vram_mtd.name = "ps3vram"; -+ ps3vram_mtd.size = ddr_size; -+ ps3vram_mtd.flags = MTD_CAP_RAM; -+ ps3vram_mtd.erase = ps3vram_erase; -+ ps3vram_mtd.point = NULL; -+ ps3vram_mtd.unpoint = NULL; -+ ps3vram_mtd.read = ps3vram_read; -+ ps3vram_mtd.write = ps3vram_write; -+ ps3vram_mtd.owner = THIS_MODULE; -+ ps3vram_mtd.type = MTD_RAM; -+ ps3vram_mtd.erasesize = CACHE_PAGE_SIZE; -+ ps3vram_mtd.writesize = 1; -+ -+ ps3vram_bind(&ps3vram_mtd); -+ -+ mutex_lock(&ps3_gpu_mutex); -+ ret = ps3vram_wait_ring(&ps3vram_mtd, 100); -+ mutex_unlock(&ps3_gpu_mutex); -+ if (ret < 0) { -+ pr_err("failed to initialize channels\n"); -+ ret = -ETIMEDOUT; -+ goto out_unmap_reports; -+ } -+ -+ ps3vram_cache_init(&ps3vram_mtd); -+ -+ if (add_mtd_device(&ps3vram_mtd)) { -+ pr_err("ps3vram: failed to register device\n"); -+ ret = -EAGAIN; -+ goto out_cache_cleanup; -+ } -+ -+ pr_info("ps3vram mtd device registered, %lu bytes\n", ddr_size); -+ return 0; -+ -+out_cache_cleanup: -+ ps3vram_cache_cleanup(&ps3vram_mtd); -+out_unmap_reports: -+ iounmap(priv->reports); -+out_unmap_ctrl: -+ iounmap(priv->ctrl); -+out_unmap_vram: -+ iounmap(priv->base); -+out_free_context: -+ lv1_gpu_context_free(priv->context_handle); -+out_free_memory: -+ lv1_gpu_memory_free(priv->memory_handle); -+out_close_gpu: -+ ps3_close_hv_device(dev); -+out_free_xdr_buf: -+ free_pages((unsigned long) priv->xdr_buf, get_order(XDR_BUF_SIZE)); -+out_free_priv: -+ kfree(ps3vram_mtd.priv); -+ ps3vram_mtd.priv = NULL; -+out: -+ return ret; -+} -+ -+static int ps3vram_shutdown(struct ps3_system_bus_device *dev) -+{ -+ struct ps3vram_priv *priv; -+ -+ priv = ps3vram_mtd.priv; -+ -+ del_mtd_device(&ps3vram_mtd); -+ ps3vram_cache_cleanup(&ps3vram_mtd); -+ iounmap(priv->reports); -+ iounmap(priv->ctrl); -+ iounmap(priv->base); -+ 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); -+ return 0; -+} -+ -+static struct ps3_system_bus_driver ps3vram_driver = { -+ .match_id = PS3_MATCH_ID_GPU, -+ .match_sub_id = PS3_MATCH_SUB_ID_GPU_RAMDISK, -+ .core.name = DEVICE_NAME, -+ .core.owner = THIS_MODULE, -+ .probe = ps3vram_probe, -+ .remove = ps3vram_shutdown, -+ .shutdown = ps3vram_shutdown, -+}; -+ -+static int __init ps3vram_init(void) -+{ -+ return ps3_system_bus_driver_register(&ps3vram_driver); -+} -+ -+static void __exit ps3vram_exit(void) -+{ -+ ps3_system_bus_driver_unregister(&ps3vram_driver); -+} -+ -+module_init(ps3vram_init); -+module_exit(ps3vram_exit); -+ -+MODULE_LICENSE("GPL"); -+MODULE_AUTHOR("Jim Paris "); -+MODULE_DESCRIPTION("MTD driver for PS3 video RAM"); --- -1.6.0.4 - -- cgit v1.2.3