diff options
Diffstat (limited to 'target/linux')
5 files changed, 1369 insertions, 0 deletions
diff --git a/target/linux/ps3/patches-2.6.28/0002-powerpc-ps3-Replace-the-flip_ctl-logic-in-ps3av-and.patch b/target/linux/ps3/patches-2.6.28/0002-powerpc-ps3-Replace-the-flip_ctl-logic-in-ps3av-and.patch new file mode 100644 index 0000000..40cf93d --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0002-powerpc-ps3-Replace-the-flip_ctl-logic-in-ps3av-and.patch @@ -0,0 +1,182 @@ +From 9b82f3e61758ed897200f0244b63a77c1791bcba Mon Sep 17 00:00:00 2001 +From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Date: Thu, 30 Oct 2008 08:12:58 +0000 +Subject: powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex + +Introduce ps3_gpu_mutex to synchronizes GPU-related operations, like: + - invoking the L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT command using the + lv1_gpu_context_attribute() hypervisor call, + - handling the PS3AV_CID_AVB_PARAM packet in the PS3 A/V Settings driver. + +Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> +Signed-off-by: Paul Mackerras <paulus@samba.org> +--- + arch/powerpc/include/asm/ps3.h | 3 +++ + arch/powerpc/include/asm/ps3av.h | 4 ---- + arch/powerpc/platforms/ps3/setup.c | 4 ++++ + drivers/ps3/ps3av.c | 20 -------------------- + drivers/ps3/ps3av_cmd.c | 4 ++-- + drivers/video/ps3fb.c | 17 +++++------------ + 6 files changed, 14 insertions(+), 38 deletions(-) + +diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h +index f9e34c4..4299365 100644 +--- a/arch/powerpc/include/asm/ps3.h ++++ b/arch/powerpc/include/asm/ps3.h +@@ -516,4 +516,7 @@ void ps3_sync_irq(int node); + u32 ps3_get_hw_thread_id(int cpu); + u64 ps3_get_spe_id(void *arg); + ++/* mutex synchronizing GPU accesses and video mode changes */ ++extern struct mutex ps3_gpu_mutex; ++ + #endif +diff --git a/arch/powerpc/include/asm/ps3av.h b/arch/powerpc/include/asm/ps3av.h +index 5aa22cf..cd24ac1 100644 +--- a/arch/powerpc/include/asm/ps3av.h ++++ b/arch/powerpc/include/asm/ps3av.h +@@ -740,8 +740,4 @@ extern int ps3av_audio_mute(int); + extern int ps3av_audio_mute_analog(int); + extern int ps3av_dev_open(void); + extern int ps3av_dev_close(void); +-extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data), +- void *flip_data); +-extern void ps3av_flip_ctl(int on); +- + #endif /* _ASM_POWERPC_PS3AV_H_ */ +diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c +index 77bc330..bfc33fb 100644 +--- a/arch/powerpc/platforms/ps3/setup.c ++++ b/arch/powerpc/platforms/ps3/setup.c +@@ -42,6 +42,10 @@ + #define DBG pr_debug + #endif + ++/* mutex synchronizing GPU accesses and video mode changes */ ++DEFINE_MUTEX(ps3_gpu_mutex); ++EXPORT_SYMBOL_GPL(ps3_gpu_mutex); ++ + #if !defined(CONFIG_SMP) + static void smp_send_stop(void) {} + #endif +diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c +index 06848b2..5324978 100644 +--- a/drivers/ps3/ps3av.c ++++ b/drivers/ps3/ps3av.c +@@ -59,8 +59,6 @@ static struct ps3av { + struct ps3av_reply_hdr reply_hdr; + u8 raw[PS3AV_BUF_SIZE]; + } recv_buf; +- void (*flip_ctl)(int on, void *data); +- void *flip_data; + } *ps3av; + + /* color space */ +@@ -939,24 +937,6 @@ int ps3av_audio_mute(int mute) + + EXPORT_SYMBOL_GPL(ps3av_audio_mute); + +-void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data), +- void *flip_data) +-{ +- mutex_lock(&ps3av->mutex); +- ps3av->flip_ctl = flip_ctl; +- ps3av->flip_data = flip_data; +- mutex_unlock(&ps3av->mutex); +-} +-EXPORT_SYMBOL_GPL(ps3av_register_flip_ctl); +- +-void ps3av_flip_ctl(int on) +-{ +- mutex_lock(&ps3av->mutex); +- if (ps3av->flip_ctl) +- ps3av->flip_ctl(on, ps3av->flip_data); +- mutex_unlock(&ps3av->mutex); +-} +- + static int ps3av_probe(struct ps3_system_bus_device *dev) + { + int res; +diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c +index 11eb503..716596e 100644 +--- a/drivers/ps3/ps3av_cmd.c ++++ b/drivers/ps3/ps3av_cmd.c +@@ -864,7 +864,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len) + { + int res; + +- ps3av_flip_ctl(0); /* flip off */ ++ mutex_lock(&ps3_gpu_mutex); + + /* avb packet */ + res = ps3av_do_pkt(PS3AV_CID_AVB_PARAM, send_len, sizeof(*avb), +@@ -878,7 +878,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len) + res); + + out: +- ps3av_flip_ctl(1); /* flip on */ ++ mutex_unlock(&ps3_gpu_mutex); + return res; + } + +diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c +index 4b5d807..bd3e39b 100644 +--- a/drivers/video/ps3fb.c ++++ b/drivers/video/ps3fb.c +@@ -460,12 +460,16 @@ static void ps3fb_sync_image(struct device *dev, u64 frame_offset, + line_length |= (u64)src_line_length << 32; + + src_offset += GPU_FB_START; ++ ++ mutex_lock(&ps3_gpu_mutex); + status = lv1_gpu_context_attribute(ps3fb.context_handle, + L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT, + dst_offset, GPU_IOIF + src_offset, + L1GPU_FB_BLIT_WAIT_FOR_COMPLETION | + (width << 16) | height, + line_length); ++ mutex_unlock(&ps3_gpu_mutex); ++ + if (status) + dev_err(dev, + "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n", +@@ -784,15 +788,6 @@ static int ps3fb_wait_for_vsync(u32 crtc) + return 0; + } + +-static void ps3fb_flip_ctl(int on, void *data) +-{ +- struct ps3fb_priv *priv = data; +- if (on) +- atomic_dec_if_positive(&priv->ext_flip); +- else +- atomic_inc(&priv->ext_flip); +-} +- + + /* + * ioctl +@@ -1228,7 +1223,6 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev) + } + + ps3fb.task = task; +- ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb); + + return 0; + +@@ -1258,10 +1252,9 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev) + + dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__); + +- ps3fb_flip_ctl(0, &ps3fb); /* flip off */ ++ atomic_inc(&ps3fb.ext_flip); /* flip off */ + ps3fb.dinfo->irq.mask = 0; + +- ps3av_register_flip_ctl(NULL, NULL); + if (ps3fb.task) { + struct task_struct *task = ps3fb.task; + ps3fb.task = NULL; +-- +1.6.0.4 + diff --git a/target/linux/ps3/patches-2.6.28/0003-powerpc-ps3-Add-sub-match-id-modalias-support.patch b/target/linux/ps3/patches-2.6.28/0003-powerpc-ps3-Add-sub-match-id-modalias-support.patch new file mode 100644 index 0000000..5f42184 --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0003-powerpc-ps3-Add-sub-match-id-modalias-support.patch @@ -0,0 +1,176 @@ +From 46d01492b2c50791b9b66f9b9154ac8d25acaeb9 Mon Sep 17 00:00:00 2001 +From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Date: Wed, 3 Dec 2008 13:52:21 +0000 +Subject: powerpc/ps3: Add sub-match id modalias support + +commit 059e4938f8b060b10c4352e6c45739473bc73267 ("powerpc/ps3: Add a sub-match +id to ps3_system_bus") forgot to update the module alias support: + - Add the sub-match ids to the module aliases, so udev can distinguish + between different types of sub-devices. + - Rename PS3_MODULE_ALIAS_GRAPHICS to PS3_MODULE_ALIAS_GPU_FB, as ps3fb + binds to the "FB" sub-device. + +Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> +Signed-off-by: Paul Mackerras <paulus@samba.org> +--- + arch/powerpc/include/asm/ps3.h | 53 ++++++++++++++--------------- + arch/powerpc/platforms/ps3/device-init.c | 4 +- + arch/powerpc/platforms/ps3/system-bus.c | 10 +++-- + drivers/video/ps3fb.c | 6 ++-- + 4 files changed, 37 insertions(+), 36 deletions(-) + +diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h +index 4299365..cff30c0 100644 +--- a/arch/powerpc/include/asm/ps3.h ++++ b/arch/powerpc/include/asm/ps3.h +@@ -305,30 +305,34 @@ static inline const char* ps3_result(int result) + /* system bus routines */ + + enum ps3_match_id { +- PS3_MATCH_ID_EHCI = 1, +- PS3_MATCH_ID_OHCI = 2, +- PS3_MATCH_ID_GELIC = 3, +- PS3_MATCH_ID_AV_SETTINGS = 4, +- PS3_MATCH_ID_SYSTEM_MANAGER = 5, +- PS3_MATCH_ID_STOR_DISK = 6, +- PS3_MATCH_ID_STOR_ROM = 7, +- PS3_MATCH_ID_STOR_FLASH = 8, +- PS3_MATCH_ID_SOUND = 9, +- PS3_MATCH_ID_GRAPHICS = 10, +- PS3_MATCH_ID_LPM = 11, ++ PS3_MATCH_ID_EHCI = 1, ++ PS3_MATCH_ID_OHCI = 2, ++ PS3_MATCH_ID_GELIC = 3, ++ PS3_MATCH_ID_AV_SETTINGS = 4, ++ PS3_MATCH_ID_SYSTEM_MANAGER = 5, ++ PS3_MATCH_ID_STOR_DISK = 6, ++ PS3_MATCH_ID_STOR_ROM = 7, ++ PS3_MATCH_ID_STOR_FLASH = 8, ++ PS3_MATCH_ID_SOUND = 9, ++ PS3_MATCH_ID_GPU = 10, ++ PS3_MATCH_ID_LPM = 11, + }; + +-#define PS3_MODULE_ALIAS_EHCI "ps3:1" +-#define PS3_MODULE_ALIAS_OHCI "ps3:2" +-#define PS3_MODULE_ALIAS_GELIC "ps3:3" +-#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4" +-#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5" +-#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6" +-#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7" +-#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8" +-#define PS3_MODULE_ALIAS_SOUND "ps3:9" +-#define PS3_MODULE_ALIAS_GRAPHICS "ps3:10" +-#define PS3_MODULE_ALIAS_LPM "ps3:11" ++enum ps3_match_sub_id { ++ PS3_MATCH_SUB_ID_GPU_FB = 1, ++}; ++ ++#define PS3_MODULE_ALIAS_EHCI "ps3:1:0" ++#define PS3_MODULE_ALIAS_OHCI "ps3:2:0" ++#define PS3_MODULE_ALIAS_GELIC "ps3:3:0" ++#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4:0" ++#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5:0" ++#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6:0" ++#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7:0" ++#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0" ++#define PS3_MODULE_ALIAS_SOUND "ps3:9:0" ++#define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1" ++#define PS3_MODULE_ALIAS_LPM "ps3:11:0" + + enum ps3_system_bus_device_type { + PS3_DEVICE_TYPE_IOC0 = 1, +@@ -337,11 +341,6 @@ enum ps3_system_bus_device_type { + PS3_DEVICE_TYPE_LPM, + }; + +-enum ps3_match_sub_id { +- /* for PS3_MATCH_ID_GRAPHICS */ +- PS3_MATCH_SUB_ID_FB = 1, +-}; +- + /** + * struct ps3_system_bus_device - a device on the system bus + */ +diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c +index 43816da..dbc124e 100644 +--- a/arch/powerpc/platforms/ps3/device-init.c ++++ b/arch/powerpc/platforms/ps3/device-init.c +@@ -497,8 +497,8 @@ static int __init ps3_register_graphics_devices(void) + if (!p) + return -ENOMEM; + +- p->dev.match_id = PS3_MATCH_ID_GRAPHICS; +- p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB; ++ p->dev.match_id = PS3_MATCH_ID_GPU; ++ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB; + p->dev.dev_type = PS3_DEVICE_TYPE_IOC0; + + result = ps3_system_bus_device_register(&p->dev); +diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c +index 661e9f7..d3da1e6 100644 +--- a/arch/powerpc/platforms/ps3/system-bus.c ++++ b/arch/powerpc/platforms/ps3/system-bus.c +@@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev) + return ps3_open_hv_device_sb(dev); + + case PS3_MATCH_ID_SOUND: +- case PS3_MATCH_ID_GRAPHICS: ++ case PS3_MATCH_ID_GPU: + return ps3_open_hv_device_gpu(dev); + + case PS3_MATCH_ID_AV_SETTINGS: +@@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev) + return ps3_close_hv_device_sb(dev); + + case PS3_MATCH_ID_SOUND: +- case PS3_MATCH_ID_GRAPHICS: ++ case PS3_MATCH_ID_GPU: + return ps3_close_hv_device_gpu(dev); + + case PS3_MATCH_ID_AV_SETTINGS: +@@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en + { + struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); + +- if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id)) ++ if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id, ++ dev->match_sub_id)) + return -ENOMEM; + return 0; + } +@@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a, + char *buf) + { + struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev); +- int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id); ++ int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id, ++ dev->match_sub_id); + + return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; + } +diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c +index bd3e39b..38ac805 100644 +--- a/drivers/video/ps3fb.c ++++ b/drivers/video/ps3fb.c +@@ -1289,8 +1289,8 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev) + } + + static struct ps3_system_bus_driver ps3fb_driver = { +- .match_id = PS3_MATCH_ID_GRAPHICS, +- .match_sub_id = PS3_MATCH_SUB_ID_FB, ++ .match_id = PS3_MATCH_ID_GPU, ++ .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB, + .core.name = DEVICE_NAME, + .core.owner = THIS_MODULE, + .probe = ps3fb_probe, +@@ -1348,4 +1348,4 @@ module_exit(ps3fb_exit); + MODULE_LICENSE("GPL"); + MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver"); + MODULE_AUTHOR("Sony Computer Entertainment Inc."); +-MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS); ++MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB); +-- +1.6.0.4 + diff --git a/target/linux/ps3/patches-2.6.28/0005-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch b/target/linux/ps3/patches-2.6.28/0005-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch new file mode 100644 index 0000000..3c5efa6 --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0005-mtd-ps3vram-Add-ps3vram-driver-for-accessing-video.patch @@ -0,0 +1,29 @@ +From cffb4add03b1fc83026b06dc3664279cfbf70155 Mon Sep 17 00:00:00 2001 +From: Jim Paris <jim@jtan.com> +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 <vivien.chappelier@free.fr> +Signed-off-by: Jim Paris <jim@jtan.com> +Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> +Acked-by: David Woodhouse <David.Woodhouse@intel.com> +Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> +--- + arch/powerpc/include/asm/ps3.h | 1 + + +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/target/linux/ps3/patches-2.6.28/0006-mtd-ps3vram-Add-modalias-support-to-the-ps3vram-dri.patch b/target/linux/ps3/patches-2.6.28/0006-mtd-ps3vram-Add-modalias-support-to-the-ps3vram-dri.patch new file mode 100644 index 0000000..243c186 --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0006-mtd-ps3vram-Add-modalias-support-to-the-ps3vram-dri.patch @@ -0,0 +1,25 @@ +From 0a2d15b928e0b1673d4ed5f48d95af211b6fcc06 Mon Sep 17 00:00:00 2001 +From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Date: Tue, 6 Jan 2009 11:32:03 +0000 +Subject: [PATCH] mtd/ps3vram: Add modalias support to the ps3vram driver + +Update ps3vram driver to use the new ps3 three id modalias support. + +Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> +Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> +--- + arch/powerpc/include/asm/ps3.h | 1 + + +diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h +index 66b6505..eead5c6 100644 +--- a/arch/powerpc/include/asm/ps3.h ++++ b/arch/powerpc/include/asm/ps3.h +@@ -333,6 +333,7 @@ enum ps3_match_sub_id { + #define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0" + #define PS3_MODULE_ALIAS_SOUND "ps3:9:0" + #define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1" ++#define PS3_MODULE_ALIAS_GPU_RAMDISK "ps3:10:2" + #define PS3_MODULE_ALIAS_LPM "ps3:11:0" + + enum ps3_system_bus_device_type { diff --git a/target/linux/ps3/patches-2.6.28/0010-ps3vram-ng.patch b/target/linux/ps3/patches-2.6.28/0010-ps3vram-ng.patch new file mode 100644 index 0000000..8c29d80 --- /dev/null +++ b/target/linux/ps3/patches-2.6.28/0010-ps3vram-ng.patch @@ -0,0 +1,957 @@ +From d7ddc1aaee1ff6dd6a73bd3663b6c390800e0500 Mon Sep 17 00:00:00 2001 +From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Date: Wed, 25 Feb 2009 18:32:10 +0100 +Subject: [PATCH] ps3/block: Replace mtd/ps3vram by block/ps3vram + +Convert the PS3 Video RAM Storage Driver from a MTD driver to a plain block +device driver, as requested by Arnd Bergmann. + +The ps3vram driver exposes unused video RAM on the PS3 as a block device +suitable for storage or swap. Fast data transfer is achieved using a local +cache in system RAM and DMA transfers via the GPU. + +The new driver is ca. 50% faster for reading, and ca. 10% for writing. + +Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> +Acked-by: Jens Axboe <axboe@kernel.dk> +Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> +Cc: Arnd Bergmann <arnd@arndb.de> +Cc: David Woodhouse <David.Woodhouse@intel.com> +Cc: Vivien Chappelier <vivien.chappelier@free.fr> +Cc: Jim Paris <jim@jtan.com> + +Notes: + +The MTD-based PS3 Video RAM Storage Driver was integrated into the mainline +kernel in 2.6.29-rc1. + +Ideally, we think it would be best if the existing MTD-based ps3vram driver +would be replaced by the new block-based ps3vram driver before 2.6.29 is +released. This would relieve the burden of supporting two different swap space +schemes on PS3 (swap on /dev/mtdblock0 vs. /dev/ps3vram) from the distro +maintainer's shoulders, as in that case there would never have been a stable +kernel version containing the MTD-based ps3vram driver. + +Changes since previous submission (Wed, 4 Mar 2009 14:57:20 +0100 (CET)): + - Use blk_queue_make_request() to get rid of the thread + - Add a mutex (cfr. the old driver), as ps3vram_make_request() may be called + concurrently + TO DO (after 2.6.29): use a spinlock and a list to queue requests while the + driver is busy + - Remove the old MTD-based ps3vram driver and rename ps3vram-ng to ps3vram + - Make PS3_VRAM depend on FB_PS3=y and m for now + ps3vram relies on ps3fb being initialized first. The easiest way to do this + is by making ps3vram modular, and ps3fb builtin + - Remove the dependency on ps3fb_videomemory.size + The loop to reduce ddr_size until it succeeds does the right thing anyway, + and a few MiB of DDR RAM are reserved by the hypervisor + - lv1 return codes can be int + - Correct a few debug annotations +--- + arch/powerpc/platforms/ps3/Kconfig | 7 + + drivers/block/Makefile | 1 + + drivers/block/ps3vram.c | 865 ++++++++++++++++++++++++++++++++++++ + create mode 100644 drivers/block/ps3vram.c + delete mode 100644 drivers/mtd/devices/ps3vram.c + +diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig +index 920cf7a..740ef56 100644 +--- a/arch/powerpc/platforms/ps3/Kconfig ++++ b/arch/powerpc/platforms/ps3/Kconfig +@@ -128,6 +128,13 @@ config PS3_FLASH + be disabled on the kernel command line using "ps3flash=off", to + not allocate this fixed buffer. + ++config PS3_VRAM ++ tristate "PS3 Video RAM Storage Driver" ++ depends on FB_PS3=y && BLOCK && m ++ help ++ This driver allows you to use excess PS3 video RAM as volatile ++ storage or system swap. ++ + config PS3_LPM + tristate "PS3 Logical Performance Monitor support" + depends on PPC_PS3 +diff --git a/drivers/block/Makefile b/drivers/block/Makefile +index 204332b..87e120e 100644 +--- a/drivers/block/Makefile ++++ b/drivers/block/Makefile +@@ -9,6 +9,7 @@ obj-$(CONFIG_MAC_FLOPPY) += swim3.o + obj-$(CONFIG_BLK_DEV_FD) += floppy.o + obj-$(CONFIG_AMIGA_FLOPPY) += amiflop.o + obj-$(CONFIG_PS3_DISK) += ps3disk.o ++obj-$(CONFIG_PS3_VRAM) += ps3vram.o + obj-$(CONFIG_ATARI_FLOPPY) += ataflop.o + obj-$(CONFIG_AMIGA_Z2RAM) += z2ram.o + obj-$(CONFIG_BLK_DEV_RAM) += brd.o +diff --git a/drivers/block/ps3vram.c b/drivers/block/ps3vram.c +new file mode 100644 +index 0000000..393ed67 +--- /dev/null ++++ b/drivers/block/ps3vram.c +@@ -0,0 +1,865 @@ ++/* ++ * ps3vram - Use extra PS3 video ram as MTD block device. ++ * ++ * Copyright 2009 Sony Corporation ++ * ++ * Based on the MTD ps3vram driver, which is ++ * Copyright (c) 2007-2008 Jim Paris <jim@jtan.com> ++ * Added support RSX DMA Vivien Chappelier <vivien.chappelier@free.fr> ++ */ ++ ++#include <linux/blkdev.h> ++#include <linux/delay.h> ++#include <linux/proc_fs.h> ++#include <linux/seq_file.h> ++ ++#include <asm/firmware.h> ++#include <asm/lv1call.h> ++#include <asm/ps3.h> ++ ++ ++#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 ++ ++#define CACHE_PAGE_PRESENT 1 ++#define CACHE_PAGE_DIRTY 2 ++ ++struct ps3vram_tag { ++ unsigned int address; ++ unsigned int flags; ++}; ++ ++struct ps3vram_cache { ++ unsigned int page_count; ++ unsigned int page_size; ++ struct ps3vram_tag *tags; ++ unsigned int hit; ++ unsigned int miss; ++}; ++ ++struct ps3vram_priv { ++ struct request_queue *queue; ++ struct gendisk *gendisk; ++ ++ u64 size; ++ ++ u64 memory_handle; ++ u64 context_handle; ++ u32 *ctrl; ++ u32 *reports; ++ u8 __iomem *ddr_base; ++ u8 *xdr_buf; ++ ++ u32 *fifo_base; ++ u32 *fifo_ptr; ++ ++ struct ps3vram_cache cache; ++ ++ /* Used to serialize cache/DMA operations */ ++ struct mutex lock; ++}; ++ ++ ++static int ps3vram_major; ++ ++ ++static struct block_device_operations ps3vram_fops = { ++ .owner = THIS_MODULE, ++}; ++ ++ ++#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 NOTIFIER 7 /* notifier used for completion report */ ++ ++static char *size = "256M"; ++module_param(size, charp, 0); ++MODULE_PARM_DESC(size, "memory size"); ++ ++static u32 *ps3vram_get_notifier(u32 *reports, int notifier) ++{ ++ return (void *)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; ++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER); ++ int i; ++ ++ for (i = 0; i < 4; i++) ++ notify[i] = 0xffffffff; ++} ++ ++static int ps3vram_notifier_wait(struct ps3_system_bus_device *dev, ++ unsigned int timeout_ms) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ u32 *notify = ps3vram_get_notifier(priv->reports, NOTIFIER); ++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); ++ ++ do { ++ if (!notify[3]) ++ return 0; ++ msleep(1); ++ } while (time_before(jiffies, timeout)); ++ ++ return -ETIMEDOUT; ++} ++ ++static void ps3vram_init_ring(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ ++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET; ++ priv->ctrl[CTRL_GET] = FIFO_BASE + FIFO_OFFSET; ++} ++ ++static int ps3vram_wait_ring(struct ps3_system_bus_device *dev, ++ unsigned int timeout_ms) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ unsigned long timeout = jiffies + msecs_to_jiffies(timeout_ms); ++ ++ do { ++ if (priv->ctrl[CTRL_PUT] == priv->ctrl[CTRL_GET]) ++ return 0; ++ msleep(1); ++ } while (time_before(jiffies, timeout)); ++ ++ dev_warn(&dev->core, "FIFO timeout (%08x/%08x/%08x)\n", ++ priv->ctrl[CTRL_PUT], priv->ctrl[CTRL_GET], ++ priv->ctrl[CTRL_TOP]); ++ ++ return -ETIMEDOUT; ++} ++ ++static void ps3vram_out_ring(struct ps3vram_priv *priv, u32 data) ++{ ++ *(priv->fifo_ptr)++ = data; ++} ++ ++static void ps3vram_begin_ring(struct ps3vram_priv *priv, u32 chan, u32 tag, ++ u32 size) ++{ ++ ps3vram_out_ring(priv, (size << 18) | (chan << 13) | tag); ++} ++ ++static void ps3vram_rewind_ring(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ int 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) ++ dev_err(&dev->core, ++ "%s: lv1_gpu_context_attribute 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; ++ int status; ++ ++ mutex_lock(&ps3_gpu_mutex); ++ ++ priv->ctrl[CTRL_PUT] = FIFO_BASE + FIFO_OFFSET + ++ (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); ++ if (status) ++ dev_err(&dev->core, ++ "%s: lv1_gpu_context_attribute failed %d\n", __func__, ++ status); ++ ++ if ((priv->fifo_ptr - priv->fifo_base) * sizeof(u32) > ++ FIFO_SIZE - 1024) { ++ dev_dbg(&dev->core, "FIFO full, rewinding\n"); ++ ps3vram_wait_ring(dev, 200); ++ ps3vram_rewind_ring(dev); ++ } ++ ++ mutex_unlock(&ps3_gpu_mutex); ++} ++ ++static void ps3vram_bind(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ ++ 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(dev); ++} ++ ++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; ++ ++ 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(dev); ++ 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(dev); ++ if (ps3vram_notifier_wait(dev, 200) < 0) { ++ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__); ++ return -1; ++ } ++ ++ return 0; ++} ++ ++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; ++ ++ 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(dev); ++ 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(dev); ++ if (ps3vram_notifier_wait(dev, 200) < 0) { ++ dev_warn(&dev->core, "%s: Notifier timeout\n", __func__); ++ return -1; ++ } ++ ++ return 0; ++} ++ ++static void ps3vram_cache_evict(struct ps3_system_bus_device *dev, int entry) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ struct ps3vram_cache *cache = &priv->cache; ++ ++ if (!(cache->tags[entry].flags & CACHE_PAGE_DIRTY)) ++ return; ++ ++ dev_dbg(&dev->core, "Flushing %d: 0x%08x\n", entry, ++ cache->tags[entry].address); ++ if (ps3vram_upload(dev, CACHE_OFFSET + entry * cache->page_size, ++ cache->tags[entry].address, DMA_PAGE_SIZE, ++ cache->page_size / DMA_PAGE_SIZE) < 0) { ++ dev_err(&dev->core, ++ "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 ps3_system_bus_device *dev, int entry, ++ unsigned int address) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ struct ps3vram_cache *cache = &priv->cache; ++ ++ dev_dbg(&dev->core, "Fetching %d: 0x%08x\n", entry, address); ++ if (ps3vram_download(dev, address, ++ CACHE_OFFSET + entry * cache->page_size, ++ DMA_PAGE_SIZE, ++ cache->page_size / DMA_PAGE_SIZE) < 0) { ++ dev_err(&dev->core, ++ "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 ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ struct ps3vram_cache *cache = &priv->cache; ++ int i; ++ ++ dev_dbg(&dev->core, "FLUSH\n"); ++ for (i = 0; i < cache->page_count; i++) { ++ ps3vram_cache_evict(dev, i); ++ cache->tags[i].flags = 0; ++ } ++} ++ ++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_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) { ++ cache->hit++; ++ dev_dbg(&dev->core, "Found entry %d: 0x%08x\n", i, ++ cache->tags[i].address); ++ return i; ++ } ++ } ++ ++ /* choose a random entry */ ++ i = (jiffies + (counter++)) % cache->page_count; ++ dev_dbg(&dev->core, "Using entry %d\n", i); ++ ++ ps3vram_cache_evict(dev, i); ++ ps3vram_cache_load(dev, i, base); ++ ++ cache->miss++; ++ return i; ++} ++ ++static int ps3vram_cache_init(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ ++ 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) { ++ dev_err(&dev->core, "Could not allocate cache tags\n"); ++ return -ENOMEM; ++ } ++ ++ dev_info(&dev->core, "Created ram cache: %d entries, %d KiB each\n", ++ CACHE_PAGE_COUNT, CACHE_PAGE_SIZE / 1024); ++ ++ return 0; ++} ++ ++static void ps3vram_cache_cleanup(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ ++ ps3vram_cache_flush(dev); ++ kfree(priv->cache.tags); ++} ++ ++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; ++ unsigned int cached, count; ++ ++ dev_dbg(&dev->core, "%s: from=0x%08x len=0x%zx\n", __func__, ++ (unsigned int)from, len); ++ ++ if (from >= priv->size) ++ return -EIO; ++ ++ if (len > priv->size - from) ++ len = priv->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(dev, from); ++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset; ++ ++ dev_dbg(&dev->core, "%s: from=%08x cached=%08x offset=%08x " ++ "avail=%08x count=%08x\n", __func__, ++ (unsigned int)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 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; ++ unsigned int cached, count; ++ ++ if (to >= priv->size) ++ return -EIO; ++ ++ if (len > priv->size - to) ++ len = priv->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(dev, to); ++ cached = CACHE_OFFSET + entry * priv->cache.page_size + offset; ++ ++ dev_dbg(&dev->core, "%s: to=%08x cached=%08x offset=%08x " ++ "avail=%08x count=%08x\n", __func__, (unsigned int)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 ps3vram_proc_show(struct seq_file *m, void *v) ++{ ++ struct ps3vram_priv *priv = m->private; ++ ++ seq_printf(m, "hit:%u\nmiss:%u\n", priv->cache.hit, priv->cache.miss); ++ return 0; ++} ++ ++static int ps3vram_proc_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, ps3vram_proc_show, PDE(inode)->data); ++} ++ ++static const struct file_operations ps3vram_proc_fops = { ++ .owner = THIS_MODULE, ++ .open = ps3vram_proc_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static void __devinit ps3vram_proc_init(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ struct proc_dir_entry *pde; ++ ++ pde = proc_create(DEVICE_NAME, 0444, NULL, &ps3vram_proc_fops); ++ if (!pde) { ++ dev_warn(&dev->core, "failed to create /proc entry\n"); ++ return; ++ } ++ ++ pde->owner = THIS_MODULE; ++ pde->data = priv; ++} ++ ++static int ps3vram_make_request(struct request_queue *q, struct bio *bio) ++{ ++ struct ps3_system_bus_device *dev = q->queuedata; ++ 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__); ++ ++ bio_for_each_segment(bvec, bio, i) { ++ /* PS3 is ppc64, so we don't handle highmem */ ++ char *ptr = page_address(bvec->bv_page) + bvec->bv_offset; ++ size_t len = bvec->bv_len, retlen; ++ ++ dev_dbg(&dev->core, " %s %zu bytes at offset %llu\n", op, ++ len, offset); ++ if (write) ++ error = ps3vram_write(dev, offset, len, &retlen, ptr); ++ else ++ error = ps3vram_read(dev, offset, len, &retlen, ptr); ++ ++ if (error) { ++ dev_err(&dev->core, "%s failed\n", op); ++ goto out; ++ } ++ ++ if (retlen != len) { ++ dev_err(&dev->core, "Short %s\n", op); ++ goto out; ++ } ++ ++ offset += len; ++ } ++ ++ dev_dbg(&dev->core, "%s completed\n", op); ++ ++out: ++ bio_endio(bio, error); ++ return 0; ++} ++ ++static int __devinit ps3vram_probe(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv; ++ int error, status; ++ struct request_queue *queue; ++ struct gendisk *gendisk; ++ u64 ddr_lpar, ctrl_lpar, info_lpar, reports_lpar, ddr_size, ++ reports_size; ++ char *rest; ++ ++ priv = kzalloc(sizeof(*priv), GFP_KERNEL); ++ if (!priv) { ++ error = -ENOMEM; ++ goto fail; ++ } ++ ++ mutex_init(&priv->lock); ++ dev->core.driver_data = priv; ++ ++ priv = dev->core.driver_data; ++ ++ /* Allocate XDR buffer (1MiB aligned) */ ++ priv->xdr_buf = (void *)__get_free_pages(GFP_KERNEL, ++ get_order(XDR_BUF_SIZE)); ++ if (priv->xdr_buf == NULL) { ++ dev_err(&dev->core, "Could not allocate XDR buffer\n"); ++ error = -ENOMEM; ++ goto fail_free_priv; ++ } ++ ++ /* Put FIFO at begginning of XDR buffer */ ++ priv->fifo_base = (u32 *) (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)) { ++ dev_err(&dev->core, "ps3_open_hv_device failed\n"); ++ error = -EAGAIN; ++ goto out_close_gpu; ++ } ++ ++ /* Request memory */ ++ status = -1; ++ ddr_size = ALIGN(memparse(size, &rest), 1024*1024); ++ if (!ddr_size) { ++ dev_err(&dev->core, "Specified size is too small\n"); ++ error = -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) ++ break; ++ ddr_size -= 1024*1024; ++ } ++ if (status) { ++ dev_err(&dev->core, "lv1_gpu_memory_allocate failed %d\n", ++ status); ++ error = -ENOMEM; ++ goto out_free_xdr_buf; ++ } ++ ++ /* Request context */ ++ status = lv1_gpu_context_allocate(priv->memory_handle, 0, ++ &priv->context_handle, &ctrl_lpar, ++ &info_lpar, &reports_lpar, ++ &reports_size); ++ if (status) { ++ dev_err(&dev->core, "lv1_gpu_context_allocate failed %d\n", ++ status); ++ error = -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) { ++ dev_err(&dev->core, "lv1_gpu_context_iomap failed %d\n", ++ status); ++ error = -ENOMEM; ++ 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; ++ } ++ ++ priv->reports = ioremap(reports_lpar, reports_size); ++ if (!priv->reports) { ++ dev_err(&dev->core, "ioremap REPORTS failed\n"); ++ error = -ENOMEM; ++ goto out_unmap_ctrl; ++ } ++ ++ mutex_lock(&ps3_gpu_mutex); ++ ps3vram_init_ring(dev); ++ mutex_unlock(&ps3_gpu_mutex); ++ ++ priv->size = ddr_size; ++ ++ ps3vram_bind(dev); ++ ++ mutex_lock(&ps3_gpu_mutex); ++ error = ps3vram_wait_ring(dev, 100); ++ mutex_unlock(&ps3_gpu_mutex); ++ if (error < 0) { ++ dev_err(&dev->core, "Failed to initialize channels\n"); ++ error = -ETIMEDOUT; ++ goto out_unmap_reports; ++ } ++ ++ ps3vram_cache_init(dev); ++ ps3vram_proc_init(dev); ++ ++ queue = blk_alloc_queue(GFP_KERNEL); ++ if (!queue) { ++ dev_err(&dev->core, "blk_alloc_queue failed\n"); ++ error = -ENOMEM; ++ goto out_cache_cleanup; ++ } ++ ++ priv->queue = queue; ++ queue->queuedata = dev; ++ blk_queue_make_request(queue, ps3vram_make_request); ++ blk_queue_max_phys_segments(queue, MAX_PHYS_SEGMENTS); ++ blk_queue_max_hw_segments(queue, MAX_HW_SEGMENTS); ++ blk_queue_max_segment_size(queue, MAX_SEGMENT_SIZE); ++ blk_queue_max_sectors(queue, SAFE_MAX_SECTORS); ++ ++ gendisk = alloc_disk(1); ++ if (!gendisk) { ++ dev_err(&dev->core, "alloc_disk failed\n"); ++ error = -ENOMEM; ++ goto fail_cleanup_queue; ++ } ++ ++ priv->gendisk = gendisk; ++ gendisk->major = ps3vram_major; ++ gendisk->first_minor = 0; ++ gendisk->fops = &ps3vram_fops; ++ gendisk->queue = queue; ++ gendisk->private_data = dev; ++ gendisk->driverfs_dev = &dev->core; ++ strlcpy(gendisk->disk_name, DEVICE_NAME, sizeof(gendisk->disk_name)); ++ set_capacity(gendisk, priv->size >> 9); ++ ++ dev_info(&dev->core, "%s: Using %lu MiB of GPU memory\n", ++ gendisk->disk_name, get_capacity(gendisk) >> 11); ++ ++ add_disk(gendisk); ++ return 0; ++ ++fail_cleanup_queue: ++ blk_cleanup_queue(queue); ++out_cache_cleanup: ++ remove_proc_entry(DEVICE_NAME, NULL); ++ ps3vram_cache_cleanup(dev); ++out_unmap_reports: ++ iounmap(priv->reports); ++out_unmap_ctrl: ++ iounmap(priv->ctrl); ++out_unmap_vram: ++ iounmap(priv->ddr_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)); ++fail_free_priv: ++ kfree(priv); ++ dev->core.driver_data = NULL; ++fail: ++ return error; ++} ++ ++static int ps3vram_remove(struct ps3_system_bus_device *dev) ++{ ++ struct ps3vram_priv *priv = dev->core.driver_data; ++ ++ del_gendisk(priv->gendisk); ++ put_disk(priv->gendisk); ++ blk_cleanup_queue(priv->queue); ++ remove_proc_entry(DEVICE_NAME, NULL); ++ ps3vram_cache_cleanup(dev); ++ iounmap(priv->reports); ++ iounmap(priv->ctrl); ++ iounmap(priv->ddr_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); ++ dev->core.driver_data = NULL; ++ return 0; ++} ++ ++static struct ps3_system_bus_driver ps3vram = { ++ .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_remove, ++ .shutdown = ps3vram_remove, ++}; ++ ++ ++static int __init ps3vram_init(void) ++{ ++ int error; ++ ++ if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) ++ return -ENODEV; ++ ++ error = register_blkdev(0, DEVICE_NAME); ++ if (error <= 0) { ++ pr_err("%s: register_blkdev failed %d\n", DEVICE_NAME, error); ++ return error; ++ } ++ ps3vram_major = error; ++ ++ pr_info("%s: registered block device major %d\n", DEVICE_NAME, ++ ps3vram_major); ++ ++ error = ps3_system_bus_driver_register(&ps3vram); ++ if (error) ++ unregister_blkdev(ps3vram_major, DEVICE_NAME); ++ ++ return error; ++} ++ ++static void __exit ps3vram_exit(void) ++{ ++ ps3_system_bus_driver_unregister(&ps3vram); ++ unregister_blkdev(ps3vram_major, DEVICE_NAME); ++} ++ ++module_init(ps3vram_init); ++module_exit(ps3vram_exit); ++ ++MODULE_LICENSE("GPL"); ++MODULE_DESCRIPTION("PS3 Video RAM Storage Driver"); ++MODULE_AUTHOR("Sony Corporation"); ++MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_RAMDISK); |