Backport of ps3vram from 2.6.29
SVN-Revision: 14940
This commit is contained in:
parent
1b216aa20a
commit
57ae5be233
5 changed files with 1369 additions and 0 deletions
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@ -0,0 +1,182 @@
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From 9b82f3e61758ed897200f0244b63a77c1791bcba Mon Sep 17 00:00:00 2001
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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Date: Thu, 30 Oct 2008 08:12:58 +0000
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Subject: powerpc/ps3: Replace the flip_ctl logic in ps3av and ps3fb by a mutex
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Introduce ps3_gpu_mutex to synchronizes GPU-related operations, like:
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- invoking the L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT command using the
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lv1_gpu_context_attribute() hypervisor call,
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- handling the PS3AV_CID_AVB_PARAM packet in the PS3 A/V Settings driver.
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Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
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Signed-off-by: Paul Mackerras <paulus@samba.org>
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---
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arch/powerpc/include/asm/ps3.h | 3 +++
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arch/powerpc/include/asm/ps3av.h | 4 ----
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arch/powerpc/platforms/ps3/setup.c | 4 ++++
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drivers/ps3/ps3av.c | 20 --------------------
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drivers/ps3/ps3av_cmd.c | 4 ++--
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drivers/video/ps3fb.c | 17 +++++------------
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6 files changed, 14 insertions(+), 38 deletions(-)
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diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
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index f9e34c4..4299365 100644
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--- a/arch/powerpc/include/asm/ps3.h
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+++ b/arch/powerpc/include/asm/ps3.h
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@@ -516,4 +516,7 @@ void ps3_sync_irq(int node);
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u32 ps3_get_hw_thread_id(int cpu);
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u64 ps3_get_spe_id(void *arg);
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+/* mutex synchronizing GPU accesses and video mode changes */
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+extern struct mutex ps3_gpu_mutex;
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+
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#endif
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diff --git a/arch/powerpc/include/asm/ps3av.h b/arch/powerpc/include/asm/ps3av.h
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index 5aa22cf..cd24ac1 100644
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--- a/arch/powerpc/include/asm/ps3av.h
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+++ b/arch/powerpc/include/asm/ps3av.h
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@@ -740,8 +740,4 @@ extern int ps3av_audio_mute(int);
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extern int ps3av_audio_mute_analog(int);
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extern int ps3av_dev_open(void);
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extern int ps3av_dev_close(void);
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-extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
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- void *flip_data);
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-extern void ps3av_flip_ctl(int on);
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-
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#endif /* _ASM_POWERPC_PS3AV_H_ */
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diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
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index 77bc330..bfc33fb 100644
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--- a/arch/powerpc/platforms/ps3/setup.c
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+++ b/arch/powerpc/platforms/ps3/setup.c
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@@ -42,6 +42,10 @@
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#define DBG pr_debug
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#endif
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+/* mutex synchronizing GPU accesses and video mode changes */
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+DEFINE_MUTEX(ps3_gpu_mutex);
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+EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
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+
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#if !defined(CONFIG_SMP)
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static void smp_send_stop(void) {}
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#endif
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diff --git a/drivers/ps3/ps3av.c b/drivers/ps3/ps3av.c
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index 06848b2..5324978 100644
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--- a/drivers/ps3/ps3av.c
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+++ b/drivers/ps3/ps3av.c
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@@ -59,8 +59,6 @@ static struct ps3av {
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struct ps3av_reply_hdr reply_hdr;
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u8 raw[PS3AV_BUF_SIZE];
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} recv_buf;
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- void (*flip_ctl)(int on, void *data);
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- void *flip_data;
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} *ps3av;
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/* color space */
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@@ -939,24 +937,6 @@ int ps3av_audio_mute(int mute)
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EXPORT_SYMBOL_GPL(ps3av_audio_mute);
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-void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data),
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- void *flip_data)
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-{
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- mutex_lock(&ps3av->mutex);
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- ps3av->flip_ctl = flip_ctl;
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- ps3av->flip_data = flip_data;
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- mutex_unlock(&ps3av->mutex);
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-}
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-EXPORT_SYMBOL_GPL(ps3av_register_flip_ctl);
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-
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-void ps3av_flip_ctl(int on)
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-{
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- mutex_lock(&ps3av->mutex);
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- if (ps3av->flip_ctl)
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- ps3av->flip_ctl(on, ps3av->flip_data);
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- mutex_unlock(&ps3av->mutex);
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-}
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-
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static int ps3av_probe(struct ps3_system_bus_device *dev)
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{
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int res;
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diff --git a/drivers/ps3/ps3av_cmd.c b/drivers/ps3/ps3av_cmd.c
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index 11eb503..716596e 100644
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--- a/drivers/ps3/ps3av_cmd.c
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+++ b/drivers/ps3/ps3av_cmd.c
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@@ -864,7 +864,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
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{
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int res;
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- ps3av_flip_ctl(0); /* flip off */
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+ mutex_lock(&ps3_gpu_mutex);
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/* avb packet */
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res = ps3av_do_pkt(PS3AV_CID_AVB_PARAM, send_len, sizeof(*avb),
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@@ -878,7 +878,7 @@ int ps3av_cmd_avb_param(struct ps3av_pkt_avb_param *avb, u32 send_len)
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res);
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out:
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- ps3av_flip_ctl(1); /* flip on */
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+ mutex_unlock(&ps3_gpu_mutex);
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return res;
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}
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diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
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index 4b5d807..bd3e39b 100644
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--- a/drivers/video/ps3fb.c
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+++ b/drivers/video/ps3fb.c
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@@ -460,12 +460,16 @@ static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
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line_length |= (u64)src_line_length << 32;
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src_offset += GPU_FB_START;
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+
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+ mutex_lock(&ps3_gpu_mutex);
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status = lv1_gpu_context_attribute(ps3fb.context_handle,
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L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
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dst_offset, GPU_IOIF + src_offset,
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L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
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(width << 16) | height,
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line_length);
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+ mutex_unlock(&ps3_gpu_mutex);
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+
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if (status)
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dev_err(dev,
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"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
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@@ -784,15 +788,6 @@ static int ps3fb_wait_for_vsync(u32 crtc)
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return 0;
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}
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-static void ps3fb_flip_ctl(int on, void *data)
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-{
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- struct ps3fb_priv *priv = data;
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- if (on)
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- atomic_dec_if_positive(&priv->ext_flip);
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- else
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- atomic_inc(&priv->ext_flip);
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-}
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-
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/*
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* ioctl
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@@ -1228,7 +1223,6 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
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}
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ps3fb.task = task;
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- ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
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return 0;
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@@ -1258,10 +1252,9 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
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dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
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- ps3fb_flip_ctl(0, &ps3fb); /* flip off */
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+ atomic_inc(&ps3fb.ext_flip); /* flip off */
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ps3fb.dinfo->irq.mask = 0;
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- ps3av_register_flip_ctl(NULL, NULL);
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if (ps3fb.task) {
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struct task_struct *task = ps3fb.task;
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ps3fb.task = NULL;
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--
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1.6.0.4
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@ -0,0 +1,176 @@
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From 46d01492b2c50791b9b66f9b9154ac8d25acaeb9 Mon Sep 17 00:00:00 2001
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From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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Date: Wed, 3 Dec 2008 13:52:21 +0000
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Subject: powerpc/ps3: Add sub-match id modalias support
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commit 059e4938f8b060b10c4352e6c45739473bc73267 ("powerpc/ps3: Add a sub-match
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id to ps3_system_bus") forgot to update the module alias support:
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- Add the sub-match ids to the module aliases, so udev can distinguish
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between different types of sub-devices.
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- Rename PS3_MODULE_ALIAS_GRAPHICS to PS3_MODULE_ALIAS_GPU_FB, as ps3fb
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binds to the "FB" sub-device.
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Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
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Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
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Signed-off-by: Paul Mackerras <paulus@samba.org>
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---
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arch/powerpc/include/asm/ps3.h | 53 ++++++++++++++---------------
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arch/powerpc/platforms/ps3/device-init.c | 4 +-
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arch/powerpc/platforms/ps3/system-bus.c | 10 +++--
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drivers/video/ps3fb.c | 6 ++--
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4 files changed, 37 insertions(+), 36 deletions(-)
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diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
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index 4299365..cff30c0 100644
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--- a/arch/powerpc/include/asm/ps3.h
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+++ b/arch/powerpc/include/asm/ps3.h
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@@ -305,30 +305,34 @@ static inline const char* ps3_result(int result)
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/* system bus routines */
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enum ps3_match_id {
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- PS3_MATCH_ID_EHCI = 1,
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- PS3_MATCH_ID_OHCI = 2,
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- PS3_MATCH_ID_GELIC = 3,
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- PS3_MATCH_ID_AV_SETTINGS = 4,
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- PS3_MATCH_ID_SYSTEM_MANAGER = 5,
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- PS3_MATCH_ID_STOR_DISK = 6,
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- PS3_MATCH_ID_STOR_ROM = 7,
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- PS3_MATCH_ID_STOR_FLASH = 8,
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- PS3_MATCH_ID_SOUND = 9,
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- PS3_MATCH_ID_GRAPHICS = 10,
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- PS3_MATCH_ID_LPM = 11,
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+ PS3_MATCH_ID_EHCI = 1,
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+ PS3_MATCH_ID_OHCI = 2,
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+ PS3_MATCH_ID_GELIC = 3,
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+ PS3_MATCH_ID_AV_SETTINGS = 4,
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+ PS3_MATCH_ID_SYSTEM_MANAGER = 5,
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+ PS3_MATCH_ID_STOR_DISK = 6,
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+ PS3_MATCH_ID_STOR_ROM = 7,
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+ PS3_MATCH_ID_STOR_FLASH = 8,
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+ PS3_MATCH_ID_SOUND = 9,
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+ PS3_MATCH_ID_GPU = 10,
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+ PS3_MATCH_ID_LPM = 11,
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};
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-#define PS3_MODULE_ALIAS_EHCI "ps3:1"
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-#define PS3_MODULE_ALIAS_OHCI "ps3:2"
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-#define PS3_MODULE_ALIAS_GELIC "ps3:3"
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-#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4"
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-#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5"
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-#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6"
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-#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7"
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-#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8"
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-#define PS3_MODULE_ALIAS_SOUND "ps3:9"
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-#define PS3_MODULE_ALIAS_GRAPHICS "ps3:10"
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-#define PS3_MODULE_ALIAS_LPM "ps3:11"
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+enum ps3_match_sub_id {
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+ PS3_MATCH_SUB_ID_GPU_FB = 1,
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+};
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+
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+#define PS3_MODULE_ALIAS_EHCI "ps3:1:0"
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+#define PS3_MODULE_ALIAS_OHCI "ps3:2:0"
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+#define PS3_MODULE_ALIAS_GELIC "ps3:3:0"
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+#define PS3_MODULE_ALIAS_AV_SETTINGS "ps3:4:0"
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+#define PS3_MODULE_ALIAS_SYSTEM_MANAGER "ps3:5:0"
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+#define PS3_MODULE_ALIAS_STOR_DISK "ps3:6:0"
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+#define PS3_MODULE_ALIAS_STOR_ROM "ps3:7:0"
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+#define PS3_MODULE_ALIAS_STOR_FLASH "ps3:8:0"
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+#define PS3_MODULE_ALIAS_SOUND "ps3:9:0"
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+#define PS3_MODULE_ALIAS_GPU_FB "ps3:10:1"
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+#define PS3_MODULE_ALIAS_LPM "ps3:11:0"
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enum ps3_system_bus_device_type {
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PS3_DEVICE_TYPE_IOC0 = 1,
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@@ -337,11 +341,6 @@ enum ps3_system_bus_device_type {
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PS3_DEVICE_TYPE_LPM,
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};
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-enum ps3_match_sub_id {
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- /* for PS3_MATCH_ID_GRAPHICS */
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- PS3_MATCH_SUB_ID_FB = 1,
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-};
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-
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/**
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* struct ps3_system_bus_device - a device on the system bus
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*/
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diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c
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index 43816da..dbc124e 100644
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--- a/arch/powerpc/platforms/ps3/device-init.c
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+++ b/arch/powerpc/platforms/ps3/device-init.c
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@@ -497,8 +497,8 @@ static int __init ps3_register_graphics_devices(void)
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if (!p)
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return -ENOMEM;
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- p->dev.match_id = PS3_MATCH_ID_GRAPHICS;
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- p->dev.match_sub_id = PS3_MATCH_SUB_ID_FB;
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+ p->dev.match_id = PS3_MATCH_ID_GPU;
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+ p->dev.match_sub_id = PS3_MATCH_SUB_ID_GPU_FB;
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p->dev.dev_type = PS3_DEVICE_TYPE_IOC0;
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result = ps3_system_bus_device_register(&p->dev);
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diff --git a/arch/powerpc/platforms/ps3/system-bus.c b/arch/powerpc/platforms/ps3/system-bus.c
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index 661e9f7..d3da1e6 100644
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--- a/arch/powerpc/platforms/ps3/system-bus.c
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+++ b/arch/powerpc/platforms/ps3/system-bus.c
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@@ -175,7 +175,7 @@ int ps3_open_hv_device(struct ps3_system_bus_device *dev)
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return ps3_open_hv_device_sb(dev);
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case PS3_MATCH_ID_SOUND:
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- case PS3_MATCH_ID_GRAPHICS:
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+ case PS3_MATCH_ID_GPU:
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return ps3_open_hv_device_gpu(dev);
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case PS3_MATCH_ID_AV_SETTINGS:
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@@ -213,7 +213,7 @@ int ps3_close_hv_device(struct ps3_system_bus_device *dev)
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return ps3_close_hv_device_sb(dev);
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case PS3_MATCH_ID_SOUND:
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- case PS3_MATCH_ID_GRAPHICS:
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+ case PS3_MATCH_ID_GPU:
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return ps3_close_hv_device_gpu(dev);
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case PS3_MATCH_ID_AV_SETTINGS:
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@@ -453,7 +453,8 @@ static int ps3_system_bus_uevent(struct device *_dev, struct kobj_uevent_env *en
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{
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
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- if (add_uevent_var(env, "MODALIAS=ps3:%d", dev->match_id))
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+ if (add_uevent_var(env, "MODALIAS=ps3:%d:%d", dev->match_id,
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+ dev->match_sub_id))
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return -ENOMEM;
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return 0;
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}
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@@ -462,7 +463,8 @@ static ssize_t modalias_show(struct device *_dev, struct device_attribute *a,
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char *buf)
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{
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struct ps3_system_bus_device *dev = ps3_dev_to_system_bus_dev(_dev);
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- int len = snprintf(buf, PAGE_SIZE, "ps3:%d\n", dev->match_id);
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+ int len = snprintf(buf, PAGE_SIZE, "ps3:%d:%d\n", dev->match_id,
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+ dev->match_sub_id);
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return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
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}
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diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
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index bd3e39b..38ac805 100644
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--- a/drivers/video/ps3fb.c
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+++ b/drivers/video/ps3fb.c
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@@ -1289,8 +1289,8 @@ static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
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}
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static struct ps3_system_bus_driver ps3fb_driver = {
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- .match_id = PS3_MATCH_ID_GRAPHICS,
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- .match_sub_id = PS3_MATCH_SUB_ID_FB,
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+ .match_id = PS3_MATCH_ID_GPU,
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+ .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB,
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.core.name = DEVICE_NAME,
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.core.owner = THIS_MODULE,
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.probe = ps3fb_probe,
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@@ -1348,4 +1348,4 @@ module_exit(ps3fb_exit);
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
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MODULE_AUTHOR("Sony Computer Entertainment Inc.");
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-MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
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+MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
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--
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1.6.0.4
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|
@ -0,0 +1,29 @@
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From cffb4add03b1fc83026b06dc3664279cfbf70155 Mon Sep 17 00:00:00 2001
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From: Jim Paris <jim@jtan.com>
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Date: Tue, 6 Jan 2009 11:32:10 +0000
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Subject: [PATCH] mtd/ps3vram: Add ps3vram driver for accessing video RAM as MTD
|
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|
||||
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"
|
|
@ -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 {
|
957
target/linux/ps3/patches-2.6.28/0010-ps3vram-ng.patch
Normal file
957
target/linux/ps3/patches-2.6.28/0010-ps3vram-ng.patch
Normal file
|
@ -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);
|
Loading…
Reference in a new issue