drm/radeon/kms: cut down indirects in register accesses.

We really don't want to be doing all these indirects, updating
the GPU gart table is something we do often so the less overhead the
better.

Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index e1a6e82..90ff8e0 100644 (file)
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -1622,26 +1622,6 @@ void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
        r100_pll_errata_after_data(rdev);
 }
 
-uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg)
-{
-       if (reg < 0x10000)
-               return readl(((void __iomem *)rdev->rmmio) + reg);
-       else {
-               writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
-               return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
-       }
-}
-
-void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
-{
-       if (reg < 0x10000)
-               writel(v, ((void __iomem *)rdev->rmmio) + reg);
-       else {
-               writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
-               writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
-       }
-}
-
 int r100_init(struct radeon_device *rdev)
 {
        return 0;

diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 8594486..c47579d 100644 (file)
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -83,8 +83,8 @@ void rv370_pcie_gart_tlb_flush(struct radeon_device *rdev)
                WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp | RADEON_PCIE_TX_GART_INVALIDATE_TLB);
                (void)RREG32_PCIE(RADEON_PCIE_TX_GART_CNTL);
                WREG32_PCIE(RADEON_PCIE_TX_GART_CNTL, tmp);
-               mb();
        }
+       mb();
 }
 
 int rv370_pcie_gart_enable(struct radeon_device *rdev)
@@ -593,27 +593,6 @@ void r300_vram_info(struct radeon_device *rdev)
 
 
 /*
- * Indirect registers accessor
- */
-uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
-{
-       uint32_t r;
-
-       WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff));
-       (void)RREG32(RADEON_PCIE_INDEX);
-       r = RREG32(RADEON_PCIE_DATA);
-       return r;
-}
-
-void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
-{
-       WREG8(RADEON_PCIE_INDEX, ((reg) & 0xff));
-       (void)RREG32(RADEON_PCIE_INDEX);
-       WREG32(RADEON_PCIE_DATA, (v));
-       (void)RREG32(RADEON_PCIE_DATA);
-}
-
-/*
  * PCIE Lanes
  */
 

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 3461127..87170a5 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -667,14 +667,11 @@ struct radeon_device {
        resource_size_t                 rmmio_base;
        resource_size_t                 rmmio_size;
        void                            *rmmio;
-       radeon_rreg_t                   mm_rreg;
-       radeon_wreg_t                   mm_wreg;
        radeon_rreg_t                   mc_rreg;
        radeon_wreg_t                   mc_wreg;
        radeon_rreg_t                   pll_rreg;
        radeon_wreg_t                   pll_wreg;
-       radeon_rreg_t                   pcie_rreg;
-       radeon_wreg_t                   pcie_wreg;
+       uint32_t                        pcie_reg_mask;
        radeon_rreg_t                   pciep_rreg;
        radeon_wreg_t                   pciep_wreg;
        struct radeon_clock             clock;
@@ -706,22 +703,42 @@ int radeon_device_init(struct radeon_device *rdev,
 void radeon_device_fini(struct radeon_device *rdev);
 int radeon_gpu_wait_for_idle(struct radeon_device *rdev);
 
+static inline uint32_t r100_mm_rreg(struct radeon_device *rdev, uint32_t reg)
+{
+       if (reg < 0x10000)
+               return readl(((void __iomem *)rdev->rmmio) + reg);
+       else {
+               writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
+               return readl(((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
+       }
+}
+
+static inline void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
+{
+       if (reg < 0x10000)
+               writel(v, ((void __iomem *)rdev->rmmio) + reg);
+       else {
+               writel(reg, ((void __iomem *)rdev->rmmio) + RADEON_MM_INDEX);
+               writel(v, ((void __iomem *)rdev->rmmio) + RADEON_MM_DATA);
+       }
+}
+
 
 /*
  * Registers read & write functions.
  */
 #define RREG8(reg) readb(((void __iomem *)rdev->rmmio) + (reg))
 #define WREG8(reg, v) writeb(v, ((void __iomem *)rdev->rmmio) + (reg))
-#define RREG32(reg) rdev->mm_rreg(rdev, (reg))
-#define WREG32(reg, v) rdev->mm_wreg(rdev, (reg), (v))
+#define RREG32(reg) r100_mm_rreg(rdev, (reg))
+#define WREG32(reg, v) r100_mm_wreg(rdev, (reg), (v))
 #define REG_SET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK)
 #define REG_GET(FIELD, v) (((v) << FIELD##_SHIFT) & FIELD##_MASK)
 #define RREG32_PLL(reg) rdev->pll_rreg(rdev, (reg))
 #define WREG32_PLL(reg, v) rdev->pll_wreg(rdev, (reg), (v))
 #define RREG32_MC(reg) rdev->mc_rreg(rdev, (reg))
 #define WREG32_MC(reg, v) rdev->mc_wreg(rdev, (reg), (v))
-#define RREG32_PCIE(reg) rdev->pcie_rreg(rdev, (reg))
-#define WREG32_PCIE(reg, v) rdev->pcie_wreg(rdev, (reg), (v))
+#define RREG32_PCIE(reg) rv370_pcie_rreg(rdev, (reg))
+#define WREG32_PCIE(reg, v) rv370_pcie_wreg(rdev, (reg), (v))
 #define WREG32_P(reg, val, mask)                               \
        do {                                                    \
                uint32_t tmp_ = RREG32(reg);                    \
@@ -737,6 +754,24 @@ int radeon_gpu_wait_for_idle(struct radeon_device *rdev);
                WREG32_PLL(reg, tmp_);                          \
        } while (0)
 
+/*
+ * Indirect registers accessor
+ */
+static inline uint32_t rv370_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
+{
+       uint32_t r;
+
+       WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
+       r = RREG32(RADEON_PCIE_DATA);
+       return r;
+}
+
+static inline void rv370_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
+{
+       WREG32(RADEON_PCIE_INDEX, ((reg) & rdev->pcie_reg_mask));
+       WREG32(RADEON_PCIE_DATA, (v));
+}
+
 void r100_pll_errata_after_index(struct radeon_device *rdev);
 
 

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 9ff6dcb..7693f7c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -225,25 +225,18 @@ void radeon_invalid_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 
 void radeon_register_accessor_init(struct radeon_device *rdev)
 {
-       rdev->mm_rreg = &r100_mm_rreg;
-       rdev->mm_wreg = &r100_mm_wreg;
        rdev->mc_rreg = &radeon_invalid_rreg;
        rdev->mc_wreg = &radeon_invalid_wreg;
        rdev->pll_rreg = &radeon_invalid_rreg;
        rdev->pll_wreg = &radeon_invalid_wreg;
-       rdev->pcie_rreg = &radeon_invalid_rreg;
-       rdev->pcie_wreg = &radeon_invalid_wreg;
        rdev->pciep_rreg = &radeon_invalid_rreg;
        rdev->pciep_wreg = &radeon_invalid_wreg;
 
        /* Don't change order as we are overridding accessor. */
        if (rdev->family < CHIP_RV515) {
-               rdev->pcie_rreg = &rv370_pcie_rreg;
-               rdev->pcie_wreg = &rv370_pcie_wreg;
-       }
-       if (rdev->family >= CHIP_RV515) {
-               rdev->pcie_rreg = &rv515_pcie_rreg;
-               rdev->pcie_wreg = &rv515_pcie_wreg;
+               rdev->pcie_reg_mask = 0xff;
+       } else {
+               rdev->pcie_reg_mask = 0x7ff;
        }
        /* FIXME: not sure here */
        if (rdev->family <= CHIP_R580) {

diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index fd8f3ca..31a7f66 100644 (file)
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -400,25 +400,6 @@ void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
        WREG32(MC_IND_INDEX, 0);
 }
 
-uint32_t rv515_pcie_rreg(struct radeon_device *rdev, uint32_t reg)
-{
-       uint32_t r;
-
-       WREG32(PCIE_INDEX, ((reg) & 0x7ff));
-       (void)RREG32(PCIE_INDEX);
-       r = RREG32(PCIE_DATA);
-       return r;
-}
-
-void rv515_pcie_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
-{
-       WREG32(PCIE_INDEX, ((reg) & 0x7ff));
-       (void)RREG32(PCIE_INDEX);
-       WREG32(PCIE_DATA, (v));
-       (void)RREG32(PCIE_DATA);
-}
-
-
 /*
  * Debugfs info
  */