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grub2/0362-Improve-AHCI-detection-and-command-issuing.patch

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Rebase to upstream snapshot.
2013-06-07 18:03:56 +00:00
From 021e35ff098ea0f022ebd56f3373fa17b0877dfe Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Sat, 27 Apr 2013 17:18:02 +0200
Subject: [PATCH 362/471] Improve AHCI detection and command issuing.
---
ChangeLog | 4 +
grub-core/disk/ahci.c | 701 +++++++++++++++++++++++++++++++++++++++-----------
2 files changed, 549 insertions(+), 156 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 8c34cc0..0d4329c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2013-04-27 Vladimir Serbinenko <phcoder@gmail.com>
+
+ Improve AHCI detection and command issuing.
+
2013-04-26 Vladimir Serbinenko <phcoder@gmail.com>
Fix pseries test.
diff --git a/grub-core/disk/ahci.c b/grub-core/disk/ahci.c
index 143ab97..29fe246 100644
--- a/grub-core/disk/ahci.c
+++ b/grub-core/disk/ahci.c
@@ -75,6 +75,8 @@ struct grub_ahci_hba_port
enum grub_ahci_hba_port_command
{
GRUB_AHCI_HBA_PORT_CMD_ST = 0x01,
+ GRUB_AHCI_HBA_PORT_CMD_SPIN_UP = 0x02,
+ GRUB_AHCI_HBA_PORT_CMD_POWER_ON = 0x04,
GRUB_AHCI_HBA_PORT_CMD_FRE = 0x10,
GRUB_AHCI_HBA_PORT_CMD_CR = 0x8000,
GRUB_AHCI_HBA_PORT_CMD_FR = 0x4000,
@@ -136,7 +138,7 @@ struct grub_ahci_device
static grub_err_t
grub_ahci_readwrite_real (struct grub_ahci_device *dev,
struct grub_disk_ata_pass_through_parms *parms,
- int spinup);
+ int spinup, int reset);
enum
@@ -162,98 +164,6 @@ enum
static struct grub_ahci_device *grub_ahci_devices;
static int numdevs;
-static int
-init_port (struct grub_ahci_device *dev)
-{
- struct grub_pci_dma_chunk *command_list;
- struct grub_pci_dma_chunk *command_table;
- grub_uint64_t endtime;
-
- command_list = grub_memalign_dma32 (1024, sizeof (struct grub_ahci_cmd_head));
- if (!command_list)
- return 1;
-
- command_table = grub_memalign_dma32 (1024,
- sizeof (struct grub_ahci_cmd_table));
- if (!command_table)
- {
- grub_dma_free (command_list);
- return 1;
- }
-
- grub_dprintf ("ahci", "found device ahci%d (port %d)\n", dev->num, dev->port);
-
- dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
- endtime = grub_get_time_ms () + 1000;
- while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't stop FR\n");
- goto out;
- }
-
- dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_ST;
- endtime = grub_get_time_ms () + 1000;
- while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't stop CR\n");
- goto out;
- }
-
- dev->hba->ports[dev->port].fbs = 2;
-
- dev->rfis = grub_memalign_dma32 (4096,
- sizeof (struct grub_ahci_received_fis));
- grub_memset ((char *) grub_dma_get_virt (dev->rfis), 0,
- sizeof (struct grub_ahci_received_fis));
- dev->hba->ports[dev->port].fis_base = grub_dma_get_phys (dev->rfis);
- dev->hba->ports[dev->port].command_list_base
- = grub_dma_get_phys (command_list);
- dev->hba->ports[dev->port].command |= GRUB_AHCI_HBA_PORT_CMD_FRE;
- while (!(dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't start FR\n");
- dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
- goto out;
- }
- dev->hba->ports[dev->port].command |= GRUB_AHCI_HBA_PORT_CMD_ST;
- while (!(dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't start CR\n");
- dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_CR;
- goto out_stop_fr;
- }
-
- dev->hba->ports[dev->port].command
- = (dev->hba->ports[dev->port].command & 0x0fffffff) | (1 << 28) | 2 | 4;
-
- dev->command_list_chunk = command_list;
- dev->command_list = grub_dma_get_virt (command_list);
- dev->command_table_chunk = command_table;
- dev->command_table = grub_dma_get_virt (command_table);
- dev->command_list->command_table_base
- = grub_dma_get_phys (command_table);
-
- return 0;
- out_stop_fr:
- dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
- endtime = grub_get_time_ms () + 1000;
- while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't stop FR\n");
- break;
- }
- out:
- grub_dma_free (command_list);
- grub_dma_free (command_table);
- grub_dma_free (dev->rfis);
- return 1;
-}
-
static int
grub_ahci_pciinit (grub_pci_device_t dev,
grub_pci_id_t pciid __attribute__ ((unused)),
@@ -273,7 +183,16 @@ grub_ahci_pciinit (grub_pci_device_t dev,
if (class >> 8 != 0x010601)
return 0;
+#ifdef GRUB_MACHINE_QEMU
+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
+ grub_pci_write_word (addr, 0x107);
+#endif
+
addr = grub_pci_make_address (dev, GRUB_PCI_REG_ADDRESS_REG5);
+
+#ifdef GRUB_MACHINE_QEMU
+ grub_pci_write (addr, 0xf4000000);
+#endif
bar = grub_pci_read (addr);
if ((bar & (GRUB_PCI_ADDR_SPACE_MASK | GRUB_PCI_ADDR_MEM_TYPE_MASK
@@ -281,8 +200,40 @@ grub_ahci_pciinit (grub_pci_device_t dev,
!= (GRUB_PCI_ADDR_SPACE_MEMORY | GRUB_PCI_ADDR_MEM_TYPE_32))
return 0;
+ addr = grub_pci_make_address (dev, GRUB_PCI_REG_COMMAND);
+ grub_pci_write_word (addr, grub_pci_read_word (addr) |
+ GRUB_PCI_COMMAND_IO_ENABLED
+ | GRUB_PCI_COMMAND_MEM_ENABLED
+ | GRUB_PCI_COMMAND_BUS_MASTER);
+
hba = grub_pci_device_map_range (dev, bar & GRUB_PCI_ADDR_MEM_MASK,
sizeof (hba));
+ grub_dprintf ("ahci", "dev: %x:%x.%x\n", dev.bus, dev.device, dev.function);
+
+ grub_dprintf ("ahci", "tfd[0]: %x\n",
+ hba->ports[0].task_file_data);
+ grub_dprintf ("ahci", "cmd[0]: %x\n",
+ hba->ports[0].command);
+ grub_dprintf ("ahci", "st[0]: %x\n",
+ hba->ports[0].status);
+ grub_dprintf ("ahci", "err[0]: %x\n",
+ hba->ports[0].sata_error);
+
+ grub_dprintf ("ahci", "tfd[1]: %x\n",
+ hba->ports[1].task_file_data);
+ grub_dprintf ("ahci", "cmd[1]: %x\n",
+ hba->ports[1].command);
+ grub_dprintf ("ahci", "st[1]: %x\n",
+ hba->ports[1].status);
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ hba->ports[1].sata_error = hba->ports[1].sata_error;
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ grub_dprintf ("ahci", "BH:%x\n", hba->bios_handoff);
if (! (hba->bios_handoff & GRUB_AHCI_BIOS_HANDOFF_OS_OWNED))
{
@@ -307,11 +258,38 @@ grub_ahci_pciinit (grub_pci_device_t dev,
else
grub_dprintf ("ahci", "AHCI is already in OS mode\n");
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
if (!(hba->global_control & GRUB_AHCI_HBA_GLOBAL_CONTROL_AHCI_EN))
grub_dprintf ("ahci", "AHCI is in compat mode. Switching\n");
else
grub_dprintf ("ahci", "AHCI is in AHCI mode.\n");
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
+
+ /* {
+ grub_uint64_t endtime;
+ hba->global_control |= 1;
+ endtime = grub_get_time_ms () + 1000;
+ while (hba->global_control & 1)
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't reset AHCI\n");
+ return 0;
+ }
+ }*/
+
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
for (i = 0; i < 5; i++)
{
hba->global_control |= GRUB_AHCI_HBA_GLOBAL_CONTROL_AHCI_EN;
@@ -325,18 +303,15 @@ grub_ahci_pciinit (grub_pci_device_t dev,
return 0;
}
- /*
- {
- grub_uint64_t endtime;
- hba->global_control |= 1;
- endtime = grub_get_time_ms () + 1000;
- while (hba->global_control & 1)
- if (grub_get_time_ms () > endtime)
- {
- grub_dprintf ("ahci", "couldn't reset AHCI\n");
- return 0;
- }
- }
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
for (i = 0; i < 5; i++)
{
@@ -350,45 +325,312 @@ grub_ahci_pciinit (grub_pci_device_t dev,
grub_dprintf ("ahci", "Couldn't put AHCI in AHCI mode\n");
return 0;
}
- */
+
+ grub_dprintf ("ahci", "err[1]: %x\n",
+ hba->ports[1].sata_error);
+
+ grub_dprintf ("ahci", "GLC:%x\n", hba->global_control);
nports = (hba->cap & GRUB_AHCI_HBA_CAP_NPORTS_MASK) + 1;
- grub_dprintf ("ahci", "%d AHCI ports\n", nports);
+ grub_dprintf ("ahci", "%d AHCI ports, PI = 0x%x\n", nports,
+ hba->ports_implemented);
+
+ struct grub_ahci_device *adevs[GRUB_AHCI_HBA_CAP_NPORTS_MASK + 1];
+ struct grub_ahci_device *failed_adevs[GRUB_AHCI_HBA_CAP_NPORTS_MASK + 1];
+ grub_uint32_t fr_running = 0;
for (i = 0; i < nports; i++)
+ failed_adevs[i] = 0;
+ for (i = 0; i < nports; i++)
{
- struct grub_ahci_device *adev;
- grub_uint32_t st;
-
if (!(hba->ports_implemented & (1 << i)))
- continue;
-
- grub_dprintf ("ahci", "status %d:%x\n", i, hba->ports[i].status);
- /* FIXME: support hotplugging. */
- st = hba->ports[i].status;
- if ((st & 0xf) != 0x3 && (st & 0xf) != 0x1)
- continue;
+ {
+ adevs[i] = 0;
+ continue;
+ }
- adev = grub_malloc (sizeof (*adev));
- if (!adev)
+ adevs[i] = grub_malloc (sizeof (*adevs[i]));
+ if (!adevs[i])
return 1;
- adev->hba = hba;
- adev->port = i;
- adev->present = 1;
- adev->num = numdevs++;
+ adevs[i]->hba = hba;
+ adevs[i]->port = i;
+ adevs[i]->present = 1;
+ adevs[i]->num = numdevs++;
+ }
- if (init_port (adev))
- {
- grub_free (adev);
- return 1;
- }
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ adevs[i]->hba->ports[adevs[i]->port].sata_error = adevs[i]->hba->ports[adevs[i]->port].sata_error;
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ adevs[i]->command_list_chunk = grub_memalign_dma32 (1024, sizeof (struct grub_ahci_cmd_head));
+ if (!adevs[i]->command_list_chunk)
+ {
+ adevs[i] = 0;
+ continue;
+ }
- grub_list_push (GRUB_AS_LIST_P (&grub_ahci_devices),
- GRUB_AS_LIST (adev));
+ adevs[i]->command_table_chunk = grub_memalign_dma32 (1024,
+ sizeof (struct grub_ahci_cmd_table));
+ if (!adevs[i]->command_table_chunk)
+ {
+ grub_dma_free (adevs[i]->command_list_chunk);
+ adevs[i] = 0;
+ continue;
+ }
+
+ adevs[i]->command_list = grub_dma_get_virt (adevs[i]->command_list_chunk);
+ adevs[i]->command_table = grub_dma_get_virt (adevs[i]->command_table_chunk);
+ adevs[i]->command_list->command_table_base
+ = grub_dma_get_phys (adevs[i]->command_table_chunk);
+
+ grub_dprintf ("ahci", "found device ahci%d (port %d), command_table = %p, command_list = %p\n",
+ adevs[i]->num, adevs[i]->port, grub_dma_get_virt (adevs[i]->command_table_chunk),
+ grub_dma_get_virt (adevs[i]->command_list_chunk));
+
+ adevs[i]->hba->ports[adevs[i]->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+ }
+
+ grub_uint64_t endtime;
+ endtime = grub_get_time_ms () + 1000;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ break;
+ if (i == nports)
+ break;
}
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ {
+ grub_dprintf ("ahci", "couldn't stop FR on port %d\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ adevs[i]->hba->ports[adevs[i]->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_ST;
+ endtime = grub_get_time_ms () + 1000;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ break;
+ if (i == nports)
+ break;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ {
+ grub_dprintf ("ahci", "couldn't stop CR on port %d\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ adevs[i]->hba->ports[adevs[i]->port].inten = 0;
+ adevs[i]->hba->ports[adevs[i]->port].intstatus = ~0;
+ // adevs[i]->hba->ports[adevs[i]->port].fbs = 0;
+
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ adevs[i]->rfis = grub_memalign_dma32 (4096,
+ sizeof (struct grub_ahci_received_fis));
+ grub_memset ((char *) grub_dma_get_virt (adevs[i]->rfis), 0,
+ sizeof (struct grub_ahci_received_fis));
+ grub_memset ((char *) grub_dma_get_virt (adevs[i]->command_list_chunk), 0,
+ sizeof (struct grub_ahci_cmd_head));
+ grub_memset ((char *) grub_dma_get_virt (adevs[i]->command_table_chunk), 0,
+ sizeof (struct grub_ahci_cmd_table));
+ adevs[i]->hba->ports[adevs[i]->port].fis_base = grub_dma_get_phys (adevs[i]->rfis);
+ adevs[i]->hba->ports[adevs[i]->port].command_list_base
+ = grub_dma_get_phys (adevs[i]->command_list_chunk);
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_FRE;
+ }
+
+ endtime = grub_get_time_ms () + 1000;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && !(adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ break;
+ if (i == nports)
+ break;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && !(adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ {
+ grub_dprintf ("ahci", "couldn't start FR on port %d\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+ fr_running |= (1 << i);
+
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_SPIN_UP;
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_POWER_ON;
+ adevs[i]->hba->ports[adevs[i]->port].command |= 1 << 28;
+
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+ }
+
+ /* 10ms should actually be enough. */
+ endtime = grub_get_time_ms () + 100;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].status & 7) != 3)
+ break;
+ if (i == nports)
+ break;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].status & 7) != 3)
+ {
+ grub_dprintf ("ahci", "couldn't detect device on port %d\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_POWER_ON;
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_SPIN_UP;
+
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ adevs[i]->hba->ports[adevs[i]->port].sata_error = ~0;
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ grub_dprintf ("ahci", "offset: %x, tfd:%x, CMD: %x\n",
+ (char *) &adevs[i]->hba->ports[adevs[i]->port].task_file_data -
+ (char *) adevs[i]->hba,
+ adevs[i]->hba->ports[adevs[i]->port].task_file_data,
+ adevs[i]->hba->ports[adevs[i]->port].command);
+
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+ }
+
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ grub_dprintf ("ahci", "offset: %x, tfd:%x, CMD: %x\n",
+ (char *) &adevs[i]->hba->ports[adevs[i]->port].task_file_data -
+ (char *) adevs[i]->hba,
+ adevs[i]->hba->ports[adevs[i]->port].task_file_data,
+ adevs[i]->hba->ports[adevs[i]->port].command);
+
+ grub_dprintf ("ahci", "err: %x\n",
+ adevs[i]->hba->ports[adevs[i]->port].sata_error);
+
+ adevs[i]->hba->ports[adevs[i]->port].command
+ = (adevs[i]->hba->ports[adevs[i]->port].command & 0x0fffffff) | (1 << 28) | 2 | 4;
+
+ /* struct grub_disk_ata_pass_through_parms parms2;
+ grub_memset (&parms2, 0, sizeof (parms2));
+ parms2.taskfile.cmd = 8;
+ grub_ahci_readwrite_real (dev, &parms2, 1, 1);*/
+ }
+
+ endtime = grub_get_time_ms () + 10000;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].task_file_data & 0x88))
+ break;
+ if (i == nports)
+ break;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && (adevs[i]->hba->ports[adevs[i]->port].task_file_data & 0x88))
+ {
+ grub_dprintf ("ahci", "port %d is busy\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ adevs[i]->hba->ports[adevs[i]->port].command |= GRUB_AHCI_HBA_PORT_CMD_ST;
+
+ endtime = grub_get_time_ms () + 1000;
+
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && !(adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ break;
+ if (i == nports)
+ break;
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i] && !(adevs[i]->hba->ports[adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ {
+ grub_dprintf ("ahci", "couldn't start CR on port %d\n", i);
+ failed_adevs[i] = adevs[i];
+ adevs[i] = 0;
+ }
+ for (i = 0; i < nports; i++)
+ if (failed_adevs[i] && (fr_running & (1 << i)))
+ failed_adevs[i]->hba->ports[failed_adevs[i]->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+
+ endtime = grub_get_time_ms () + 1000;
+ while (grub_get_time_ms () < endtime)
+ {
+ for (i = 0; i < nports; i++)
+ if (failed_adevs[i] && (fr_running & (1 << i)) && (failed_adevs[i]->hba->ports[failed_adevs[i]->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ break;
+ if (i == nports)
+ break;
+ }
+ for (i = 0; i < nports; i++)
+ if (failed_adevs[i])
+ {
+ grub_dma_free (adevs[i]->command_list_chunk);
+ grub_dma_free (adevs[i]->command_table_chunk);
+ grub_dma_free (adevs[i]->rfis);
+ }
+
+ for (i = 0; i < nports; i++)
+ if (adevs[i])
+ {
+ grub_list_push (GRUB_AS_LIST_P (&grub_ahci_devices),
+ GRUB_AS_LIST (adevs[i]));
+ }
+
return 0;
}
@@ -435,13 +677,105 @@ grub_ahci_fini_hw (int noreturn __attribute__ ((unused)))
return GRUB_ERR_NONE;
}
+static int
+reinit_port (struct grub_ahci_device *dev)
+{
+ struct grub_pci_dma_chunk *command_list;
+ struct grub_pci_dma_chunk *command_table;
+ grub_uint64_t endtime;
+
+ command_list = grub_memalign_dma32 (1024, sizeof (struct grub_ahci_cmd_head));
+ if (!command_list)
+ return 1;
+
+ command_table = grub_memalign_dma32 (1024,
+ sizeof (struct grub_ahci_cmd_table));
+ if (!command_table)
+ {
+ grub_dma_free (command_list);
+ return 1;
+ }
+
+ grub_dprintf ("ahci", "found device ahci%d (port %d)\n", dev->num, dev->port);
+
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+ endtime = grub_get_time_ms () + 1000;
+ while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't stop FR\n");
+ goto out;
+ }
+
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_ST;
+ endtime = grub_get_time_ms () + 1000;
+ while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't stop CR\n");
+ goto out;
+ }
+
+ dev->hba->ports[dev->port].fbs = 2;
+
+ dev->rfis = grub_memalign_dma32 (4096,
+ sizeof (struct grub_ahci_received_fis));
+ grub_memset ((char *) grub_dma_get_virt (dev->rfis), 0,
+ sizeof (struct grub_ahci_received_fis));
+ dev->hba->ports[dev->port].fis_base = grub_dma_get_phys (dev->rfis);
+ dev->hba->ports[dev->port].command_list_base
+ = grub_dma_get_phys (command_list);
+ dev->hba->ports[dev->port].command |= GRUB_AHCI_HBA_PORT_CMD_FRE;
+ while (!(dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't start FR\n");
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+ goto out;
+ }
+ dev->hba->ports[dev->port].command |= GRUB_AHCI_HBA_PORT_CMD_ST;
+ while (!(dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't start CR\n");
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_CR;
+ goto out_stop_fr;
+ }
+
+ dev->hba->ports[dev->port].command
+ = (dev->hba->ports[dev->port].command & 0x0fffffff) | (1 << 28) | 2 | 4;
+
+ dev->command_list_chunk = command_list;
+ dev->command_list = grub_dma_get_virt (command_list);
+ dev->command_table_chunk = command_table;
+ dev->command_table = grub_dma_get_virt (command_table);
+ dev->command_list->command_table_base
+ = grub_dma_get_phys (command_table);
+
+ return 0;
+ out_stop_fr:
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+ endtime = grub_get_time_ms () + 1000;
+ while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_FR))
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't stop FR\n");
+ break;
+ }
+ out:
+ grub_dma_free (command_list);
+ grub_dma_free (command_table);
+ grub_dma_free (dev->rfis);
+ return 1;
+}
+
static grub_err_t
grub_ahci_restore_hw (void)
{
struct grub_ahci_device **pdev;
for (pdev = &grub_ahci_devices; *pdev; pdev = &((*pdev)->next))
- if (init_port (*pdev))
+ if (reinit_port (*pdev))
{
struct grub_ahci_device *odev;
odev = *pdev;
@@ -504,38 +838,72 @@ static const int register_map[11] = { 3 /* Features */,
9 /* LBA48 mid */,
10 /* LBA48 high */ };
-static grub_err_t
-grub_ahci_readwrite_real (struct grub_ahci_device *dev,
- struct grub_disk_ata_pass_through_parms *parms,
- int spinup)
+static grub_err_t
+grub_ahci_reset_port (struct grub_ahci_device *dev, int force)
{
- struct grub_pci_dma_chunk *bufc;
grub_uint64_t endtime;
- unsigned i;
- grub_err_t err = GRUB_ERR_NONE;
-
- grub_dprintf ("ahci", "AHCI tfd = %x\n",
- dev->hba->ports[dev->port].task_file_data);
+
+ dev->hba->ports[dev->port].sata_error = dev->hba->ports[dev->port].sata_error;
- if ((dev->hba->ports[dev->port].task_file_data & 0x80))
+ if (force || (dev->hba->ports[dev->port].command_issue & 1)
+ || (dev->hba->ports[dev->port].task_file_data & 0x80))
{
+ struct grub_disk_ata_pass_through_parms parms2;
dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_ST;
endtime = grub_get_time_ms () + 1000;
while ((dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
if (grub_get_time_ms () > endtime)
{
- grub_dprintf ("ahci", "couldn't stop CR\n");
- break;
+ grub_dprintf ("ahci", "couldn't stop CR");
+ return grub_error (GRUB_ERR_IO, "couldn't stop CR");
+ }
+ dev->hba->ports[dev->port].command |= 8;
+ while (dev->hba->ports[dev->port].command & 8)
+ if (grub_get_time_ms () > endtime)
+ {
+ grub_dprintf ("ahci", "couldn't set CLO\n");
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_FRE;
+ return grub_error (GRUB_ERR_IO, "couldn't set CLO");
}
+
dev->hba->ports[dev->port].command |= GRUB_AHCI_HBA_PORT_CMD_ST;
- endtime = grub_get_time_ms () + (spinup ? 10000 : 1000);
while (!(dev->hba->ports[dev->port].command & GRUB_AHCI_HBA_PORT_CMD_CR))
if (grub_get_time_ms () > endtime)
{
- grub_dprintf ("ahci", "couldn't start CR\n");
- break;
+ grub_dprintf ("ahci", "couldn't stop CR");
+ dev->hba->ports[dev->port].command &= ~GRUB_AHCI_HBA_PORT_CMD_ST;
+ return grub_error (GRUB_ERR_IO, "couldn't stop CR");
}
+ dev->hba->ports[dev->port].sata_error = dev->hba->ports[dev->port].sata_error;
+ grub_memset (&parms2, 0, sizeof (parms2));
+ parms2.taskfile.cmd = 8;
+ return grub_ahci_readwrite_real (dev, &parms2, 1, 1);
}
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_ahci_readwrite_real (struct grub_ahci_device *dev,
+ struct grub_disk_ata_pass_through_parms *parms,
+ int spinup, int reset)
+{
+ struct grub_pci_dma_chunk *bufc;
+ grub_uint64_t endtime;
+ unsigned i;
+ grub_err_t err = GRUB_ERR_NONE;
+
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
+
+ if (!reset)
+ grub_ahci_reset_port (dev, 0);
+
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
+ dev->hba->ports[dev->port].task_file_data = 0;
+ dev->hba->ports[dev->port].command_issue = 0;
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
dev->hba->ports[dev->port].sata_error = dev->hba->ports[dev->port].sata_error;
@@ -551,10 +919,9 @@ grub_ahci_readwrite_real (struct grub_ahci_device *dev,
bufc = grub_memalign_dma32 (1024, parms->size + (parms->size & 1));
- dev->hba->ports[dev->port].command |= 8;
-
- grub_dprintf ("ahci", "AHCI tfd = %x\n",
- dev->hba->ports[dev->port].task_file_data);
+ grub_dprintf ("ahci", "AHCI tfd = %x, CL=%p\n",
+ dev->hba->ports[dev->port].task_file_data,
+ dev->command_list);
/* FIXME: support port multipliers. */
dev->command_list[0].config
= (5 << GRUB_AHCI_CONFIG_CFIS_LENGTH_SHIFT)
@@ -564,17 +931,28 @@ grub_ahci_readwrite_real (struct grub_ahci_device *dev,
| (parms->cmdsize ? GRUB_AHCI_CONFIG_ATAPI : 0)
| (parms->write ? GRUB_AHCI_CONFIG_WRITE : GRUB_AHCI_CONFIG_READ)
| (parms->taskfile.cmd == 8 ? (1 << 8) : 0);
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
+
dev->command_list[0].transfered = 0;
dev->command_list[0].command_table_base
= grub_dma_get_phys (dev->command_table_chunk);
+
grub_memset ((char *) dev->command_list[0].unused, 0,
sizeof (dev->command_list[0].unused));
+
grub_memset ((char *) &dev->command_table[0], 0,
sizeof (dev->command_table[0]));
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
+
if (parms->cmdsize)
grub_memcpy ((char *) dev->command_table[0].command, parms->cmd,
parms->cmdsize);
+ grub_dprintf ("ahci", "AHCI tfd = %x\n",
+ dev->hba->ports[dev->port].task_file_data);
+
dev->command_table[0].cfis[0] = GRUB_AHCI_FIS_REG_H2D;
dev->command_table[0].cfis[1] = 0x80;
for (i = 0; i < sizeof (parms->taskfile.raw); i++)
@@ -593,8 +971,7 @@ grub_ahci_readwrite_real (struct grub_ahci_device *dev,
dev->command_table[0].prdt[0].data_base = grub_dma_get_phys (bufc);
dev->command_table[0].prdt[0].unused = 0;
- dev->command_table[0].prdt[0].size = (parms->size + (parms->size & 1) - 1)
- | GRUB_AHCI_INTERRUPT_ON_COMPLETE;
+ dev->command_table[0].prdt[0].size = (parms->size - 1);
grub_dprintf ("ahci", "PRDT = %" PRIxGRUB_UINT64_T ", %x, %x (%"
PRIuGRUB_SIZE ")\n",
@@ -610,11 +987,19 @@ grub_ahci_readwrite_real (struct grub_ahci_device *dev,
grub_dprintf ("ahci", "AHCI command schedulded\n");
grub_dprintf ("ahci", "AHCI tfd = %x\n",
dev->hba->ports[dev->port].task_file_data);
+ grub_dprintf ("ahci", "AHCI inten = %x\n",
+ dev->hba->ports[dev->port].inten);
+ grub_dprintf ("ahci", "AHCI intstatus = %x\n",
+ dev->hba->ports[dev->port].intstatus);
+
dev->hba->ports[dev->port].inten = 0xffffffff;//(1 << 2) | (1 << 5);
dev->hba->ports[dev->port].intstatus = 0xffffffff;//(1 << 2) | (1 << 5);
+ grub_dprintf ("ahci", "AHCI inten = %x\n",
+ dev->hba->ports[dev->port].inten);
grub_dprintf ("ahci", "AHCI tfd = %x\n",
dev->hba->ports[dev->port].task_file_data);
- dev->hba->ports[dev->port].command_issue |= 1;
+ dev->hba->ports[dev->port].sata_active = 1;
+ dev->hba->ports[dev->port].command_issue = 1;
grub_dprintf ("ahci", "AHCI sig = %x\n", dev->hba->ports[dev->port].sig);
grub_dprintf ("ahci", "AHCI tfd = %x\n",
dev->hba->ports[dev->port].task_file_data);
@@ -623,11 +1008,15 @@ grub_ahci_readwrite_real (struct grub_ahci_device *dev,
while ((dev->hba->ports[dev->port].command_issue & 1))
if (grub_get_time_ms () > endtime)
{
- grub_dprintf ("ahci", "AHCI status <%x %x %x>\n",
+ grub_dprintf ("ahci", "AHCI status <%x %x %x %x>\n",
dev->hba->ports[dev->port].command_issue,
+ dev->hba->ports[dev->port].sata_active,
dev->hba->ports[dev->port].intstatus,
dev->hba->ports[dev->port].task_file_data);
+ dev->hba->ports[dev->port].command_issue = 0;
err = grub_error (GRUB_ERR_IO, "AHCI transfer timed out");
+ if (!reset)
+ grub_ahci_reset_port (dev, 1);
break;
}
@@ -672,7 +1061,7 @@ grub_ahci_readwrite (grub_ata_t disk,
struct grub_disk_ata_pass_through_parms *parms,
int spinup)
{
- return grub_ahci_readwrite_real (disk->data, parms, spinup);
+ return grub_ahci_readwrite_real (disk->data, parms, spinup, 0);
}
static grub_err_t
--
1.8.2.1
Reference in a new issue Copy permalink