From f183bda6c6681c9994a064e3d2d0f43b532416f0 Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Wed, 1 Jun 2022 13:25:17 +0200
Subject: drm/mgag200: Implement new init logic
Git-commit: b62d943e9686e791dd39f8bde302fc27446cdca9
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
Rework mgag200_regs_init() and mgag200_mm_init() into device preinit
and init functions. The preinit function, mgag200_device_preinit(),
requests and maps a device's I/O and video memory. The init function,
mgag200_device_init() initializes the state of struct mga_device.
Splitting the initialization between the two functions is necessary
to perform per-model operations between the two calls, such as reading
the unique revision ID on G200SEs.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Jocelyn Falempe <jfalempe@redhat.com>
Tested-by: Jocelyn Falempe <jfalempe@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220601112522.5774-6-tzimmermann@suse.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/mgag200/Makefile | 1 -
drivers/gpu/drm/mgag200/mgag200_drv.c | 78 +++++++++++++++++++----
drivers/gpu/drm/mgag200/mgag200_drv.h | 21 ++----
drivers/gpu/drm/mgag200/mgag200_g200.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200eh.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200eh3.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200er.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200ev.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200ew3.c | 9 +--
drivers/gpu/drm/mgag200/mgag200_g200se.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_g200wb.c | 7 +-
drivers/gpu/drm/mgag200/mgag200_mm.c | 71 ---------------------
drivers/gpu/drm/mgag200/mgag200_mode.c | 7 +-
13 files changed, 88 insertions(+), 148 deletions(-)
delete mode 100644 drivers/gpu/drm/mgag200/mgag200_mm.c
diff --git a/drivers/gpu/drm/mgag200/Makefile b/drivers/gpu/drm/mgag200/Makefile
index 0c515a3b073d..89558549c3af 100644
--- a/drivers/gpu/drm/mgag200/Makefile
+++ b/drivers/gpu/drm/mgag200/Makefile
@@ -10,7 +10,6 @@ mgag200-y := \
mgag200_g200se.o \
mgag200_g200wb.o \
mgag200_i2c.o \
- mgag200_mm.o \
mgag200_mode.o \
mgag200_pll.o
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c
index 1d53ddcc00df..8f636db4a723 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.c
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.c
@@ -111,35 +111,85 @@ static const struct drm_driver mgag200_driver = {
* DRM device
*/
-int mgag200_regs_init(struct mga_device *mdev)
+resource_size_t mgag200_device_probe_vram(struct mga_device *mdev)
+{
+ return mgag200_probe_vram(mdev->vram, resource_size(mdev->vram_res));
+}
+
+int mgag200_device_preinit(struct mga_device *mdev)
{
struct drm_device *dev = &mdev->base;
struct pci_dev *pdev = to_pci_dev(dev->dev);
- u8 crtcext3;
- int ret;
-
- ret = drmm_mutex_init(dev, &mdev->rmmio_lock);
- if (ret)
- return ret;
+ resource_size_t start, len;
+ struct resource *res;
/* BAR 1 contains registers */
- mdev->rmmio_base = pci_resource_start(pdev, 1);
- mdev->rmmio_size = pci_resource_len(pdev, 1);
- if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
- mdev->rmmio_size, "mgadrmfb_mmio")) {
- drm_err(dev, "can't reserve mmio registers\n");
- return -ENOMEM;
+ start = pci_resource_start(pdev, 1);
+ len = pci_resource_len(pdev, 1);
+
+ res = devm_request_mem_region(dev->dev, start, len, "mgadrmfb_mmio");
+ if (!res) {
+ drm_err(dev, "devm_request_mem_region(MMIO) failed\n");
+ return -ENXIO;
}
+ mdev->rmmio_res = res;
mdev->rmmio = pcim_iomap(pdev, 1, 0);
- if (mdev->rmmio == NULL)
+ if (!mdev->rmmio)
+ return -ENOMEM;
+
+ /* BAR 0 is VRAM */
+
+ start = pci_resource_start(pdev, 0);
+ len = pci_resource_len(pdev, 0);
+
+ res = devm_request_mem_region(dev->dev, start, len, "mgadrmfb_vram");
+ if (!res) {
+ drm_err(dev, "devm_request_mem_region(VRAM) failed\n");
+ return -ENXIO;
+ }
+ mdev->vram_res = res;
+
+ /* Don't fail on errors, but performance might be reduced. */
+ devm_arch_io_reserve_memtype_wc(dev->dev, res->start, resource_size(res));
+ devm_arch_phys_wc_add(dev->dev, res->start, resource_size(res));
+
+ mdev->vram = devm_ioremap(dev->dev, res->start, resource_size(res));
+ if (!mdev->vram)
return -ENOMEM;
+ return 0;
+}
+
+int mgag200_device_init(struct mga_device *mdev, enum mga_type type, unsigned long flags)
+{
+ struct drm_device *dev = &mdev->base;
+ u8 crtcext3, misc;
+ int ret;
+
+ mdev->flags = flags;
+ mdev->type = type;
+
+ ret = drmm_mutex_init(dev, &mdev->rmmio_lock);
+ if (ret)
+ return ret;
+
+ mutex_lock(&mdev->rmmio_lock);
+
RREG_ECRT(0x03, crtcext3);
crtcext3 |= MGAREG_CRTCEXT3_MGAMODE;
WREG_ECRT(0x03, crtcext3);
+ WREG_ECRT(0x04, 0x00);
+
+ misc = RREG8(MGA_MISC_IN);
+ misc |= MGAREG_MISC_RAMMAPEN |
+ MGAREG_MISC_HIGH_PG_SEL;
+ WREG8(MGA_MISC_OUT, misc);
+
+ mutex_unlock(&mdev->rmmio_lock);
+
return 0;
}
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h
index 21c7a689ed33..9abecf366268 100644
--- a/drivers/gpu/drm/mgag200/mgag200_drv.h
+++ b/drivers/gpu/drm/mgag200/mgag200_drv.h
@@ -175,12 +175,6 @@ struct mga_i2c_chan {
int data, clock;
};
-struct mga_mc {
- resource_size_t vram_size;
- resource_size_t vram_base;
- resource_size_t vram_window;
-};
-
enum mga_type {
G200_PCI,
G200_AGP,
@@ -206,13 +200,11 @@ struct mga_device {
struct drm_device base;
unsigned long flags;
- struct mutex rmmio_lock; /* Protects access to rmmio */
- resource_size_t rmmio_base;
- resource_size_t rmmio_size;
+ struct resource *rmmio_res;
void __iomem *rmmio;
+ struct mutex rmmio_lock; /* Protects access to rmmio */
- struct mga_mc mc;
-
+ struct resource *vram_res;
void __iomem *vram;
resource_size_t vram_available;
@@ -258,7 +250,9 @@ static inline struct mgag200_g200se_device *to_mgag200_g200se_device(struct drm_
/* mgag200_drv.c */
int mgag200_init_pci_options(struct pci_dev *pdev, u32 option, u32 option2);
resource_size_t mgag200_probe_vram(void __iomem *mem, resource_size_t size);
-int mgag200_regs_init(struct mga_device *mdev);
+resource_size_t mgag200_device_probe_vram(struct mga_device *mdev);
+int mgag200_device_preinit(struct mga_device *mdev);
+int mgag200_device_init(struct mga_device *mdev, enum mga_type type, unsigned long flags);
/* mgag200_<device type>.c */
struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct drm_driver *drv,
@@ -285,9 +279,6 @@ int mgag200_modeset_init(struct mga_device *mdev, resource_size_t vram_fb_availa
/* mgag200_i2c.c */
int mgag200_i2c_init(struct mga_device *mdev, struct mga_i2c_chan *i2c);
- /* mgag200_mm.c */
-int mgag200_mm_init(struct mga_device *mdev);
-
/* mgag200_pll.c */
int mgag200_pixpll_init(struct mgag200_pll *pixpll, struct mga_device *mdev);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200.c b/drivers/gpu/drm/mgag200/mgag200_g200.c
index 4e30b54a2677..4300a472c0a3 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200.c
@@ -177,16 +177,13 @@ struct mga_device *mgag200_g200_device_create(struct pci_dev *pdev, const struct
if (ret)
return ERR_PTR(ret);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
mgag200_g200_init_refclk(g200);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh.c b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
index a16493db0512..7af9bdfb03c7 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh.c
@@ -25,18 +25,15 @@ struct mga_device *mgag200_g200eh_device_create(struct pci_dev *pdev, const stru
pci_set_drvdata(pdev, dev);
- mdev->flags = flags;
- mdev->type = type;
-
ret = mgag200_init_pci_options(pdev, 0x00000120, 0x0000b000);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
index 478ca578b839..c0695d5c4f68 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200eh3.c
@@ -26,18 +26,15 @@ struct mga_device *mgag200_g200eh3_device_create(struct pci_dev *pdev,
pci_set_drvdata(pdev, dev);
- mdev->flags = flags;
- mdev->type = type;
-
ret = mgag200_init_pci_options(pdev, 0x00000120, 0x0000b000);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200er.c b/drivers/gpu/drm/mgag200/mgag200_g200er.c
index 2f38fb470f4e..281317450fad 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200er.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200er.c
@@ -25,14 +25,11 @@ struct mga_device *mgag200_g200er_device_create(struct pci_dev *pdev, const stru
pci_set_drvdata(pdev, dev);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ev.c b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
index ff3c7b17ac44..41f948962b93 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ev.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ev.c
@@ -29,14 +29,11 @@ struct mga_device *mgag200_g200ev_device_create(struct pci_dev *pdev, const stru
if (ret)
return ERR_PTR(ret);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
index 971d40874cf3..89346815e107 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200ew3.c
@@ -12,7 +12,7 @@
static resource_size_t mgag200_g200ew3_device_probe_vram(struct mga_device *mdev)
{
- resource_size_t vram_size = mdev->mc.vram_size;
+ resource_size_t vram_size = resource_size(mdev->vram_res);
if (vram_size >= 0x1000000)
vram_size = vram_size - 0x400000;
@@ -39,14 +39,11 @@ struct mga_device *mgag200_g200ew3_device_create(struct pci_dev *pdev,
if (ret)
return ERR_PTR(ret);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200se.c b/drivers/gpu/drm/mgag200/mgag200_g200se.c
index cd2987b58fcb..b23459710372 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200se.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200se.c
@@ -64,16 +64,13 @@ struct mga_device *mgag200_g200se_device_create(struct pci_dev *pdev, const stru
if (ret)
return ERR_PTR(ret);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
mgag200_g200se_init_unique_id(g200se);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_g200wb.c b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
index 38e374c00419..776bad867b4d 100644
--- a/drivers/gpu/drm/mgag200/mgag200_g200wb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_g200wb.c
@@ -29,14 +29,11 @@ struct mga_device *mgag200_g200wb_device_create(struct pci_dev *pdev, const stru
if (ret)
return ERR_PTR(ret);
- mdev->flags = flags;
- mdev->type = type;
-
- ret = mgag200_regs_init(mdev);
+ ret = mgag200_device_preinit(mdev);
if (ret)
return ERR_PTR(ret);
- ret = mgag200_mm_init(mdev);
+ ret = mgag200_device_init(mdev, type, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/mgag200/mgag200_mm.c b/drivers/gpu/drm/mgag200/mgag200_mm.c
deleted file mode 100644
index fc19c2369641..000000000000
--- a/drivers/gpu/drm/mgag200/mgag200_mm.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright 2012 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- */
-/*
- * Authors: Dave Airlie <airlied@redhat.com>
- */
-
-#include <linux/pci.h>
-
-#include <drm/drm_managed.h>
-
-#include "mgag200_drv.h"
-
-int mgag200_mm_init(struct mga_device *mdev)
-{
- struct drm_device *dev = &mdev->base;
- struct pci_dev *pdev = to_pci_dev(dev->dev);
- u8 misc;
- resource_size_t start, len;
-
- WREG_ECRT(0x04, 0x00);
-
- misc = RREG8(MGA_MISC_IN);
- misc |= MGAREG_MISC_RAMMAPEN |
- MGAREG_MISC_HIGH_PG_SEL;
- WREG8(MGA_MISC_OUT, misc);
-
- /* BAR 0 is VRAM */
- start = pci_resource_start(pdev, 0);
- len = pci_resource_len(pdev, 0);
-
- if (!devm_request_mem_region(dev->dev, start, len, "mgadrmfb_vram")) {
- drm_err(dev, "can't reserve VRAM\n");
- return -ENXIO;
- }
-
- /* Don't fail on errors, but performance might be reduced. */
- devm_arch_io_reserve_memtype_wc(dev->dev, start, len);
- devm_arch_phys_wc_add(dev->dev, start, len);
-
- mdev->vram = devm_ioremap(dev->dev, start, len);
- if (!mdev->vram)
- return -ENOMEM;
-
- mdev->mc.vram_size = len;
- mdev->mc.vram_base = start;
- mdev->mc.vram_window = len;
-
- return 0;
-}
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index c254988e5bcb..effe5160bb79 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -32,11 +32,6 @@
* This file contains setup code for the CRTC.
*/
-resource_size_t mgag200_device_probe_vram(struct mga_device *mdev)
-{
- return mgag200_probe_vram(mdev->vram, mdev->mc.vram_size);
-}
-
static void mgag200_crtc_set_gamma_linear(struct mga_device *mdev,
const struct drm_format_info *format)
{
@@ -1103,7 +1098,7 @@ int mgag200_modeset_init(struct mga_device *mdev, resource_size_t vram_available
dev->mode_config.max_width = MGAG200_MAX_FB_WIDTH;
dev->mode_config.max_height = MGAG200_MAX_FB_HEIGHT;
dev->mode_config.preferred_depth = 24;
- dev->mode_config.fb_base = mdev->mc.vram_base;
+ dev->mode_config.fb_base = mdev->vram_res->start;
dev->mode_config.funcs = &mgag200_mode_config_funcs;
ret = mgag200_i2c_init(mdev, i2c);
--
2.38.1