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Subject[PATCH V3 08/29] drm/gma500: deprecate pci_get_bus_and_slot()
Date
pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
where a PCI device is present. This restricts the device drivers to be
reused for other domain numbers.

Getting ready to remove pci_get_bus_and_slot() function in favor of
pci_get_domain_bus_and_slot().

Add domain parameter to CDV_MSG_READ32, CDV_MSG_WRITE32, MRST_MSG_READ32,
MRST_MSG_WRITE32, MDFLD_MSG_READ32, MDFLD_MSG_WRITE32.

Extract pci_dev from struct drm_device and use pdev to find the domain
number while calling pci_get_domain_bus_and_slot().

Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
---
drivers/gpu/drm/gma500/cdv_device.c | 16 +++++++++-------
drivers/gpu/drm/gma500/gma_device.c | 4 +++-
drivers/gpu/drm/gma500/mid_bios.c | 12 +++++++++---
drivers/gpu/drm/gma500/psb_drv.c | 10 ++++++++--
drivers/gpu/drm/gma500/psb_drv.h | 18 ++++++++++--------
5 files changed, 39 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
index 8745971..3a3bf75 100644
--- a/drivers/gpu/drm/gma500/cdv_device.c
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -185,21 +185,22 @@ static int cdv_backlight_init(struct drm_device *dev)
* for this and the MID devices.
*/

-static inline u32 CDV_MSG_READ32(uint port, uint offset)
+static inline u32 CDV_MSG_READ32(int domain, uint port, uint offset)
{
int mcr = (0x10<<24) | (port << 16) | (offset << 8);
uint32_t ret_val = 0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_read_config_dword(pci_root, 0xD4, &ret_val);
pci_dev_put(pci_root);
return ret_val;
}

-static inline void CDV_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void CDV_MSG_WRITE32(int domain, uint port, uint offset,
+ u32 value)
{
int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD4, value);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_dev_put(pci_root);
@@ -216,11 +217,12 @@ static void cdv_init_pm(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
u32 pwr_cnt;
+ int domain = pci_domain_nr(dev->pdev->bus);
int i;

- dev_priv->apm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+ dev_priv->apm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
PSB_APMBA) & 0xFFFF;
- dev_priv->ospm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+ dev_priv->ospm_base = CDV_MSG_READ32(domain, PSB_PUNIT_PORT,
PSB_OSPMBA) & 0xFFFF;

/* Power status */
@@ -251,7 +253,7 @@ static void cdv_errata(struct drm_device *dev)
* Bonus Launch to work around the issue, by degrading
* performance.
*/
- CDV_MSG_WRITE32(3, 0x30, 0x08027108);
+ CDV_MSG_WRITE32(pci_domain_nr(dev->pdev->bus), 3, 0x30, 0x08027108);
}

/**
diff --git a/drivers/gpu/drm/gma500/gma_device.c b/drivers/gpu/drm/gma500/gma_device.c
index 4a295f9..a7fb6de 100644
--- a/drivers/gpu/drm/gma500/gma_device.c
+++ b/drivers/gpu/drm/gma500/gma_device.c
@@ -19,7 +19,9 @@
void gma_get_core_freq(struct drm_device *dev)
{
uint32_t clock;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root =
+ pci_get_domain_bus_and_slot(pci_domain_nr(dev->pdev->bus),
+ 0, 0);
struct drm_psb_private *dev_priv = dev->dev_private;

/*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
diff --git a/drivers/gpu/drm/gma500/mid_bios.c b/drivers/gpu/drm/gma500/mid_bios.c
index d75ecb3..5c23d4e 100644
--- a/drivers/gpu/drm/gma500/mid_bios.c
+++ b/drivers/gpu/drm/gma500/mid_bios.c
@@ -32,7 +32,9 @@
static void mid_get_fuse_settings(struct drm_device *dev)
{
struct drm_psb_private *dev_priv = dev->dev_private;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root =
+ pci_get_domain_bus_and_slot(pci_domain_nr(dev->pdev->bus),
+ 0, 0);
uint32_t fuse_value = 0;
uint32_t fuse_value_tmp = 0;

@@ -104,7 +106,9 @@ static void mid_get_fuse_settings(struct drm_device *dev)
static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
{
uint32_t platform_rev_id = 0;
- struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+ int domain = pci_domain_nr(dev_priv->dev->pdev->bus);
+ struct pci_dev *pci_gfx_root =
+ pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(2, 0));

if (pci_gfx_root == NULL) {
WARN_ON(1);
@@ -281,7 +285,9 @@ static void mid_get_vbt_data(struct drm_psb_private *dev_priv)
u32 addr;
u8 __iomem *vbt_virtual;
struct mid_vbt_header vbt_header;
- struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+ struct pci_dev *pci_gfx_root =
+ pci_get_domain_bus_and_slot(pci_domain_nr(dev->pdev->bus),
+ 0, PCI_DEVFN(2, 0));
int ret = -1;

/* Get the address of the platform config vbt */
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
index 37a3be7..99d6527 100644
--- a/drivers/gpu/drm/gma500/psb_drv.c
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -261,7 +261,11 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
goto out_err;

if (IS_MRST(dev)) {
- dev_priv->aux_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(3, 0));
+ int domain = pci_domain_nr(dev->pdev->bus);
+
+ dev_priv->aux_pdev =
+ pci_get_domain_bus_and_slot(domain, 0,
+ PCI_DEVFN(3, 0));

if (dev_priv->aux_pdev) {
resource_start = pci_resource_start(dev_priv->aux_pdev,
@@ -281,7 +285,9 @@ static int psb_driver_load(struct drm_device *dev, unsigned long flags)
}
dev_priv->gmbus_reg = dev_priv->aux_reg;

- dev_priv->lpc_pdev = pci_get_bus_and_slot(0, PCI_DEVFN(31, 0));
+ dev_priv->lpc_pdev =
+ pci_get_domain_bus_and_slot(domain, 0,
+ PCI_DEVFN(31, 0));
if (dev_priv->lpc_pdev) {
pci_read_config_word(dev_priv->lpc_pdev, PSB_LPC_GBA,
&dev_priv->lpc_gpio_base);
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
index 821497d..d409e02 100644
--- a/drivers/gpu/drm/gma500/psb_drv.h
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -781,38 +781,40 @@ extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
extern int drm_idle_check_interval;

/* Utilities */
-static inline u32 MRST_MSG_READ32(uint port, uint offset)
+static inline u32 MRST_MSG_READ32(int domain, uint port, uint offset)
{
int mcr = (0xD0<<24) | (port << 16) | (offset << 8);
uint32_t ret_val = 0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_read_config_dword(pci_root, 0xD4, &ret_val);
pci_dev_put(pci_root);
return ret_val;
}
-static inline void MRST_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void MRST_MSG_WRITE32(int domain, uint port, uint offset,
+ u32 value)
{
int mcr = (0xE0<<24) | (port << 16) | (offset << 8) | 0xF0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD4, value);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_dev_put(pci_root);
}
-static inline u32 MDFLD_MSG_READ32(uint port, uint offset)
+static inline u32 MDFLD_MSG_READ32(int domain, uint port, uint offset)
{
int mcr = (0x10<<24) | (port << 16) | (offset << 8);
uint32_t ret_val = 0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_read_config_dword(pci_root, 0xD4, &ret_val);
pci_dev_put(pci_root);
return ret_val;
}
-static inline void MDFLD_MSG_WRITE32(uint port, uint offset, u32 value)
+static inline void MDFLD_MSG_WRITE32(int domain, uint port, uint offset,
+ u32 value)
{
int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
- struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+ struct pci_dev *pci_root = pci_get_domain_bus_and_slot(domain, 0, 0);
pci_write_config_dword(pci_root, 0xD4, value);
pci_write_config_dword(pci_root, 0xD0, mcr);
pci_dev_put(pci_root);
--
1.9.1
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